SEBSERV-18 SEBSERV-19 #ported from prototype

pom.xml

@@ -224,7 +224,13 @@
       <artifactId>spring-security-jwt</artifactId>
       <version>1.0.9.RELEASE</version>
     </dependency>
-    
+
+    <!-- Apache HTTP -->
+    <dependency>
+      <groupId>org.apache.httpcomponents</groupId>
+      <artifactId>httpclient</artifactId>
+    </dependency>
+
     <!-- Eclipse RAP / RWT -->
     <dependency>
       <groupId>org.eclipse.rap</groupId>

src/main/java/ch/ethz/seb/sebserver/WebSecurityConfig.java

@@ -19,6 +19,7 @@ import org.springframework.boot.web.servlet.error.ErrorController;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.core.annotation.Order;
+import org.springframework.http.HttpStatus;
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
 import org.springframework.security.config.annotation.web.builders.WebSecurity;
 import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
@@ -90,6 +91,7 @@ public class WebSecurityConfig extends WebSecurityConfigurerAdapter implements E
                                     final HttpServletResponse response,
                                     final AuthenticationException authException) throws IOException, ServletException {
 
+                                response.setStatus(HttpStatus.UNAUTHORIZED.value());
                                 response.sendRedirect(WebSecurityConfig.this.unauthorizedRedirect);
                             }
                         })
@@ -104,6 +106,7 @@ public class WebSecurityConfig extends WebSecurityConfigurerAdapter implements E
 
     @RequestMapping("/error")
     public void handleError(final HttpServletResponse response) throws IOException {
+        response.setStatus(HttpStatus.NOT_FOUND.value());
         response.sendRedirect(this.unauthorizedRedirect);
     }
 

src/main/java/ch/ethz/seb/sebserver/gbl/api/APIMessage.java

@@ -6,9 +6,11 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
  */
 
-package ch.ethz.seb.sebserver.gbl.model;
+package ch.ethz.seb.sebserver.gbl.api;
 
 import java.io.Serializable;
+import java.util.Arrays;
+import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
 
@@ -72,12 +74,14 @@ public class APIMessage implements Serializable {
             return new APIMessage(this.messageCode, this.systemMessage, error.getMessage());
         }
 
-        public ResponseEntity<APIMessage> createErrorResponse() {
-            return new ResponseEntity<>(of(), this.httpStatus);
+        public ResponseEntity<List<APIMessage>> createErrorResponse() {
+            final APIMessage message = of();
+            return new ResponseEntity<>(Arrays.asList(message), this.httpStatus);
         }
 
         public ResponseEntity<Object> createErrorResponse(final String details, final String... attributes) {
-            return new ResponseEntity<>(of(details, attributes), this.httpStatus);
+            final APIMessage message = of(details, attributes);
+            return new ResponseEntity<>(Arrays.asList(message), this.httpStatus);
         }
     }
 
@@ -134,6 +138,24 @@ public class APIMessage implements Serializable {
         return ErrorMessage.FIELD_VALIDATION.of(error.toString(), args);
     }
 
+    public static String toHTML(final Collection<APIMessage> messages) {
+        final StringBuilder builder = new StringBuilder();
+        builder.append("<b>Messages:</b><br/><br/>");
+        messages.stream().forEach(message -> {
+            builder
+                    .append("&nbsp;&nbsp;code&nbsp;:&nbsp;")
+                    .append(message.messageCode)
+                    .append("<br/>")
+                    .append("&nbsp;&nbsp;system message&nbsp;:&nbsp;")
+                    .append(message.systemMessage)
+                    .append("<br/>")
+                    .append("&nbsp;&nbsp;details&nbsp;:&nbsp;")
+                    .append(StringUtils.abbreviate(message.details, 100))
+                    .append("<br/><br/>");
+        });
+        return builder.toString();
+    }
+
     public static class APIMessageException extends RuntimeException {
 
         private static final long serialVersionUID = 1453431210820677296L;

src/main/java/ch/ethz/seb/sebserver/gbl/api/APIMessageError.java

@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2019 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gbl.api;
+
+import java.util.List;
+
+public interface APIMessageError {
+
+    List<APIMessage> getErrorMessages();
+
+}

src/main/java/ch/ethz/seb/sebserver/gbl/api/JSONMapper.java

@@ -6,7 +6,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
  */
 
-package ch.ethz.seb.sebserver.gbl;
+package ch.ethz.seb.sebserver.gbl.api;
 
 import org.springframework.context.annotation.Lazy;
 import org.springframework.stereotype.Component;

src/main/java/ch/ethz/seb/sebserver/gbl/api/POSTMapper.java

@@ -6,7 +6,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
  */
 
-package ch.ethz.seb.sebserver.gbl;
+package ch.ethz.seb.sebserver.gbl.api;
 
 import java.util.Collections;
 import java.util.List;

src/main/java/ch/ethz/seb/sebserver/gbl/api/SEBServerRestEndpoints.java

@@ -6,9 +6,9 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
  */
 
-package ch.ethz.seb.sebserver.webservice.weblayer.api;
+package ch.ethz.seb.sebserver.gbl.api;
 
-public class RestAPI {
+public class SEBServerRestEndpoints {
 
     public static final String ENDPOINT_INSTITUTION = "/institution";
 

src/main/java/ch/ethz/seb/sebserver/gbl/model/Entity.java

@@ -22,8 +22,8 @@ public interface Entity extends ModelIdAware {
     @JsonIgnore
     String getName();
 
-    public static EntityKeyAndName toName(final Entity entity) {
-        return new EntityKeyAndName(
+    public static EntityName toName(final Entity entity) {
+        return new EntityName(
                 entity.entityType(),
                 entity.getModelId(),
                 entity.getName());

src/main/java/ch/ethz/seb/sebserver/gbl/model/EntityName.java

@@ -14,7 +14,7 @@ import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.annotation.JsonProperty;
 
 @JsonIgnoreProperties(ignoreUnknown = true)
-public class EntityKeyAndName implements ModelIdAware, ModelNameAware {
+public class EntityName implements ModelIdAware, ModelNameAware {
 
     @JsonProperty(value = "entityType", required = true)
     public final EntityType entityType;
@@ -24,7 +24,7 @@ public class EntityKeyAndName implements ModelIdAware, ModelNameAware {
     public final String name;
 
     @JsonCreator
-    public EntityKeyAndName(
+    public EntityName(
             @JsonProperty(value = "entityType", required = true) final EntityType entityType,
             @JsonProperty(value = Domain.ATTR_ID, required = true) final String id,
             @JsonProperty(value = "name", required = true) final String name) {
@@ -34,7 +34,7 @@ public class EntityKeyAndName implements ModelIdAware, ModelNameAware {
         this.name = name;
     }
 
-    public EntityKeyAndName(final EntityKey entityKey, final String name) {
+    public EntityName(final EntityKey entityKey, final String name) {
 
         this.entityType = entityKey.entityType;
         this.modelId = entityKey.modelId;
@@ -74,7 +74,7 @@ public class EntityKeyAndName implements ModelIdAware, ModelNameAware {
             return false;
         if (getClass() != obj.getClass())
             return false;
-        final EntityKeyAndName other = (EntityKeyAndName) obj;
+        final EntityName other = (EntityName) obj;
         if (this.entityType != other.entityType)
             return false;
         if (this.modelId == null) {

src/main/java/ch/ethz/seb/sebserver/gbl/model/EntityProcessingReport.java

@@ -14,6 +14,7 @@ import java.util.Set;
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonProperty;
 
+import ch.ethz.seb.sebserver.gbl.api.APIMessage;
 import ch.ethz.seb.sebserver.gbl.util.Utils;
 
 public class EntityProcessingReport {

src/main/java/ch/ethz/seb/sebserver/gbl/model/exam/Exam.java

@@ -19,7 +19,7 @@ import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonProperty;
 
-import ch.ethz.seb.sebserver.gbl.POSTMapper;
+import ch.ethz.seb.sebserver.gbl.api.POSTMapper;
 import ch.ethz.seb.sebserver.gbl.model.Activatable;
 import ch.ethz.seb.sebserver.gbl.model.Domain.EXAM;
 import ch.ethz.seb.sebserver.gbl.model.EntityType;

src/main/java/ch/ethz/seb/sebserver/gbl/model/institution/Institution.java

@@ -13,7 +13,7 @@ import javax.validation.constraints.Size;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
 
-import ch.ethz.seb.sebserver.gbl.POSTMapper;
+import ch.ethz.seb.sebserver.gbl.api.POSTMapper;
 import ch.ethz.seb.sebserver.gbl.model.Activatable;
 import ch.ethz.seb.sebserver.gbl.model.Domain;
 import ch.ethz.seb.sebserver.gbl.model.Domain.INSTITUTION;

src/main/java/ch/ethz/seb/sebserver/gbl/model/institution/LmsSetup.java

@@ -15,12 +15,12 @@ import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonProperty;
 
-import ch.ethz.seb.sebserver.gbl.POSTMapper;
+import ch.ethz.seb.sebserver.gbl.api.POSTMapper;
 import ch.ethz.seb.sebserver.gbl.model.Activatable;
 import ch.ethz.seb.sebserver.gbl.model.Domain;
 import ch.ethz.seb.sebserver.gbl.model.Domain.INSTITUTION;
 import ch.ethz.seb.sebserver.gbl.model.Domain.LMS_SETUP;
-import ch.ethz.seb.sebserver.gbl.model.EntityKeyAndName;
+import ch.ethz.seb.sebserver.gbl.model.EntityName;
 import ch.ethz.seb.sebserver.gbl.model.EntityType;
 import ch.ethz.seb.sebserver.webservice.servicelayer.authorization.GrantEntity;
 
@@ -198,8 +198,8 @@ public final class LmsSetup implements GrantEntity, Activatable {
                 + this.sebAuthSecret + ", active=" + this.active + "]";
     }
 
-    public static EntityKeyAndName toName(final LmsSetup lmsSetup) {
-        return new EntityKeyAndName(
+    public static EntityName toName(final LmsSetup lmsSetup) {
+        return new EntityName(
                 EntityType.LMS_SETUP,
                 String.valueOf(lmsSetup.id),
                 lmsSetup.name);

src/main/java/ch/ethz/seb/sebserver/gbl/model/user/UserInfo.java

@@ -156,6 +156,13 @@ public final class UserInfo implements GrantEntity, Activatable, Serializable {
         return this.roles;
     }
 
+    public boolean hasRole(final UserRole userRole) {
+        if (userRole == null) {
+            return false;
+        }
+        return this.roles.contains(userRole.name());
+    }
+
     @Override
     public int hashCode() {
         final int prime = 31;

src/main/java/ch/ethz/seb/sebserver/gbl/model/user/UserMod.java

@@ -22,9 +22,9 @@ import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.annotation.JsonProperty;
 
-import ch.ethz.seb.sebserver.gbl.POSTMapper;
 import ch.ethz.seb.sebserver.gbl.model.Domain.USER;
 import ch.ethz.seb.sebserver.gbl.model.Domain.USER_ROLE;
+import ch.ethz.seb.sebserver.gbl.api.POSTMapper;
 import ch.ethz.seb.sebserver.gbl.model.EntityType;
 import ch.ethz.seb.sebserver.webservice.servicelayer.authorization.GrantEntity;
 

src/main/java/ch/ethz/seb/sebserver/gbl/util/Result.java

@@ -69,23 +69,58 @@ public final class Result<T> {
         return this.value;
     }
 
-    /** @return the error if some was reporter or null if there was no error */
-    public Throwable getError() {
-        return this.error;
+    /** Use this to get the resulting value. In an error case, a given error handling
+     * function is used that receives the error and returns a resulting value instead
+     * (or throw some error instead)
+     *
+     * @param errorHandler the error handling function
+     * @return */
+    public T get(final Function<Throwable, T> errorHandler) {
+        return this.error != null ? errorHandler.apply(this.error) : this.value;
     }
 
-    public boolean hasError() {
-        return this.error != null;
+    public T get(final Consumer<Throwable> errorHandler, final Supplier<T> supplier) {
+        if (this.error != null) {
+            errorHandler.accept(this.error);
+            return supplier.get();
+        } else {
+            return this.value;
+        }
     }
 
     /** Use this to get the resulting value or (if null) to get a given other value
      *
      * @param other the other value to get if the computed value is null
      * @return return either the computed value if existing or a given other value */
-    public T getOrElse(final T other) {
+    public T getOr(final T other) {
         return this.value != null ? this.value : other;
     }
 
+    /** Use this to get the resulting value if existing or throw an Runtime exception with
+     * given message otherwise.
+     *
+     * @param message the message for the RuntimeException in error case
+     * @return the resulting value */
+    public T getOrThrowRuntime(final String message) {
+        if (this.error != null) {
+            throw new RuntimeException(message, this.error);
+        }
+
+        return this.value;
+    }
+
+    public T getOrThrow() {
+        if (this.error != null) {
+            if (this.error instanceof RuntimeException) {
+                throw (RuntimeException) this.error;
+            } else {
+                throw new RuntimeException("RuntimeExceptionWrapper cause: ", this.error);
+            }
+        }
+
+        return this.value;
+    }
+
     /** Use this to get the resulting value or (if null) to get a given other value
      *
      * @param supplier supplier to get the value from if the computed value is null
@@ -94,6 +129,15 @@ public final class Result<T> {
         return this.value != null ? this.value : supplier.get();
     }
 
+    /** @return the error if some was reporter or null if there was no error */
+    public Throwable getError() {
+        return this.error;
+    }
+
+    public boolean hasError() {
+        return this.error != null;
+    }
+
     /** If a value is present, performs the given action with the value,
      * otherwise performs the given empty-based action.
      *
@@ -155,16 +199,6 @@ public final class Result<T> {
         }
     }
 
-    /** Use this to get the resulting value. In an error case, a given error handling
-     * function is used that receives the error and returns a resulting value instead
-     * (or throw some error instead)
-     *
-     * @param errorHandler the error handling function
-     * @return */
-    public T getOrHandleError(final Function<Throwable, T> errorHandler) {
-        return this.error != null ? errorHandler.apply(this.error) : this.value;
-    }
-
     public Result<T> onErrorDo(final Consumer<Throwable> block) {
         if (this.error != null) {
             block.accept(this.error);
@@ -172,31 +206,6 @@ public final class Result<T> {
         return this;
     }
 
-    /** Use this to get the resulting value if existing or throw an Runtime exception with
-     * given message otherwise.
-     *
-     * @param message the message for the RuntimeException in error case
-     * @return the resulting value */
-    public T getOrThrowRuntime(final String message) {
-        if (this.error != null) {
-            throw new RuntimeException(message, this.error);
-        }
-
-        return this.value;
-    }
-
-    public T getOrThrow() {
-        if (this.error != null) {
-            if (this.error instanceof RuntimeException) {
-                throw (RuntimeException) this.error;
-            } else {
-                throw new RuntimeException("RuntimeExceptionWrapper cause: ", this.error);
-            }
-        }
-
-        return this.value;
-    }
-
     /** Use this to create a Result of a given resulting value.
      *
      * @param value resulting value

src/main/java/ch/ethz/seb/sebserver/gbl/util/Utils.java

@@ -103,7 +103,7 @@ public final class Utils {
 
     public static Long dateTimeStringToTimestamp(final String startTime, final Long defaultValue) {
         return dateTimeStringToTimestamp(startTime)
-                .getOrElse(defaultValue);
+                .getOr(defaultValue);
     }
 
     public static <M extends Map<K, V>, K, V> M mapPut(final M map, final K key, final V value) {

src/main/java/ch/ethz/seb/sebserver/gui/GuiWebsecurityConfig.java

@@ -11,7 +11,6 @@ package ch.ethz.seb.sebserver.gui;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.core.annotation.Order;
-import org.springframework.security.config.annotation.web.builders.HttpSecurity;
 import org.springframework.security.config.annotation.web.builders.WebSecurity;
 import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
 import org.springframework.security.web.util.matcher.AntPathRequestMatcher;
@@ -43,38 +42,4 @@ public class GuiWebsecurityConfig extends WebSecurityConfigurerAdapter {
                 .requestMatchers(PUBLIC_URLS);
     }
 
-    @Override
-    protected void configure(final HttpSecurity http) throws Exception {
-        System.out.println("**************** GuiWebConfig: ");
-//        //@formatter:off
-//        http
-//            .sessionManagement()
-//            .sessionCreationPolicy(SessionCreationPolicy.STATELESS)
-//        .and()
-//            .antMatcher("/**"/*this.guiEndpointPath + "/**"*/)
-//            .authorizeRequests()
-//            .anyRequest()
-//            .authenticated()
-//            .and()
-//            .exceptionHandling()
-//            .authenticationEntryPoint(
-//                    new AuthenticationEntryPoint() {
-//
-//                        @Override
-//                        public void commence(final HttpServletRequest request, final HttpServletResponse response,
-//                                final AuthenticationException authException) throws IOException, ServletException {
-//                            response.sendRedirect("/gui");
-//                        }
-//
-//                    })
-//        .and()
-//            .formLogin().disable()
-//            .httpBasic().disable()
-//            .logout().disable()
-//            .headers().frameOptions().disable()
-//         .and()
-//            .csrf().disable();
-      //@formatter:on
-    }
-
 }

src/main/java/ch/ethz/seb/sebserver/gui/service/i18n/I18nSupport.java

@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.i18n;
+
+import java.util.Collection;
+import java.util.Locale;
+
+import org.joda.time.DateTime;
+
+public interface I18nSupport {
+
+    Collection<Locale> supportedLanguages();
+
+    /** Get the current Locale either form a user if this is called from a logged in user context or the
+     * applications default locale.
+     *
+     * @return the current Locale to use in context */
+    Locale getCurrentLocale();
+
+    void setSessionLocale(Locale locale);
+
+    /** Format a DateTime to a text format to display.
+     *
+     * @param date
+     * @return */
+    String formatDisplayDate(DateTime date);
+
+    /** Get localized text of specified key for currently set Locale.
+     *
+     * @param key the key name of localized text
+     * @param args additional arguments to parse the localized text
+     * @return the text in current language parsed from localized text */
+    String getText(String key, Object... args);
+
+    /** Get localized text of specified key for currently set Locale.
+     *
+     * @param key LocTextKey instance
+     * @return the text in current language parsed from localized text */
+    String getText(LocTextKey key);
+
+    /** Get localized text of specified key for currently set Locale.
+     *
+     * @param key the key name of localized text
+     * @param def default text that is returned if no localized test with specified key was found
+     * @param args additional arguments to parse the localized text
+     * @return the text in current language parsed from localized text */
+    String getText(final String key, String def, Object... args);
+
+    /** Get localized text of specified key and Locale.
+     *
+     * @param key the key name of localized text
+     * @param locale the Locale
+     * @param args additional arguments to parse the localized text
+     * @return the text in current language parsed from localized text */
+    String getText(String key, Locale locale, Object... args);
+
+    /** Get localized text of specified key and Locale.
+     *
+     * @param key the key name of localized text
+     * @param locale the Locale
+     * @param def default text that is returned if no localized test with specified key was found
+     * @param args additional arguments to parse the localized text
+     * @return the text in current language parsed from localized text */
+    String getText(String key, Locale locale, String def, Object... args);
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/i18n/LocTextKey.java

@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.i18n;
+
+import java.util.Arrays;
+
+public class LocTextKey {
+
+    public final String name;
+    public final Object[] args;
+
+    public LocTextKey(final String name) {
+        this.name = name;
+        this.args = null;
+    }
+
+    public LocTextKey(final String name, final Object... args) {
+        this.name = name;
+        this.args = args;
+    }
+
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = 1;
+        result = prime * result + ((this.name == null) ? 0 : this.name.hashCode());
+        return result;
+    }
+
+    @Override
+    public boolean equals(final Object obj) {
+        if (this == obj)
+            return true;
+        if (obj == null)
+            return false;
+        if (getClass() != obj.getClass())
+            return false;
+        final LocTextKey other = (LocTextKey) obj;
+        if (this.name == null) {
+            if (other.name != null)
+                return false;
+        } else if (!this.name.equals(other.name))
+            return false;
+        return true;
+    }
+
+    @Override
+    public String toString() {
+        return "LocTextKey [name=" + this.name + ", args=" + Arrays.toString(this.args) + "]";
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/i18n/PolyglotPageService.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2019 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.i18n;
+
+import java.util.Locale;
+
+import org.eclipse.swt.widgets.Composite;
+
+public interface PolyglotPageService {
+
+    String POLYGLOT_WIDGET_FUNCTION_KEY = "POLYGLOT_WIDGET_FUNCTION";
+    String POLYGLOT_TREE_ITEM_TEXT_DATA_KEY = "POLYGLOT_TREE_ITEM_TEXT_DATA";
+
+    /** Gets the underling I18nSupport
+     * 
+     * @return the underling I18nSupport */
+    I18nSupport getI18nSupport();
+
+    /** The default locale for the page.
+     * Uses I18nSupport.getCurrentLocale to do so.
+     * 
+     * @param root the root Composite of the page to change the language */
+    void setDefaultPageLocale(Composite root);
+
+    /** Sets the given Locale and if needed, updates the page language according to the
+     * given Locale
+     * 
+     * @param root root the root Composite of the page to change the language
+     * @param locale the Locale to set */
+    void setPageLocale(Composite root, Locale locale);
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/i18n/impl/I18nSupportImpl.java

@@ -0,0 +1,131 @@
+/*
+ * Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.i18n.impl;
+
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Locale;
+
+import org.eclipse.rap.rwt.RWT;
+import org.joda.time.DateTime;
+import org.joda.time.format.DateTimeFormat;
+import org.joda.time.format.DateTimeFormatter;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.MessageSource;
+import org.springframework.context.annotation.Lazy;
+import org.springframework.stereotype.Component;
+
+import ch.ethz.seb.sebserver.gui.service.i18n.I18nSupport;
+import ch.ethz.seb.sebserver.gui.service.i18n.LocTextKey;
+import ch.ethz.seb.sebserver.gui.service.remote.webservice.auth.CurrentUser;
+
+@Lazy
+@Component
+public class I18nSupportImpl implements I18nSupport {
+
+    private static final Logger log = LoggerFactory.getLogger(I18nSupportImpl.class);
+
+    public static final String EMPTY_DISPLAY_VALUE = "--";
+    private static final String ATTR_CURRENT_SESSION_LOCALE = "CURRENT_SESSION_LOCALE";
+
+    private final DateTimeFormatter displayDateFormatter;
+    private final CurrentUser currentUser;
+    private final MessageSource messageSource;
+    private final Locale defaultLocale = Locale.ENGLISH;
+
+    public I18nSupportImpl(
+            final CurrentUser currentUser,
+            final MessageSource messageSource,
+            @Value("${sebserver.gui.date.displayformat}") final String displayDateFormat) {
+
+        this.currentUser = currentUser;
+        this.messageSource = messageSource;
+        this.displayDateFormatter = DateTimeFormat
+                .forPattern(displayDateFormat)
+                .withZoneUTC();
+    }
+
+    private static final Collection<Locale> SUPPORTED = Arrays.asList(Locale.ENGLISH, Locale.GERMANY);
+
+    @Override
+    public Collection<Locale> supportedLanguages() {
+        return SUPPORTED;
+    }
+
+    @Override
+    public void setSessionLocale(final Locale locale) {
+        try {
+            RWT.getUISession()
+                    .getHttpSession()
+                    .setAttribute(ATTR_CURRENT_SESSION_LOCALE, locale);
+            RWT.setLocale(locale);
+        } catch (final IllegalStateException e) {
+            log.error("Set current locale for session failed: ", e);
+        }
+    }
+
+    @Override
+    public Locale getCurrentLocale() {
+        // first session-locale if available
+        try {
+            final Locale sessionLocale = (Locale) RWT.getUISession()
+                    .getHttpSession()
+                    .getAttribute(ATTR_CURRENT_SESSION_LOCALE);
+            if (sessionLocale != null) {
+                return sessionLocale;
+            }
+        } catch (final IllegalStateException e) {
+            log.warn("Get current locale for session failed: {}", e.getMessage());
+        }
+
+        // second user-locale if available
+        if (this.currentUser.isAvailable()) {
+            return this.currentUser.get().locale;
+        }
+
+        // last the default locale
+        return this.defaultLocale;
+    }
+
+    @Override
+    public String formatDisplayDate(final DateTime date) {
+        if (date == null) {
+            return EMPTY_DISPLAY_VALUE;
+        }
+        return date.toString(this.displayDateFormatter);
+    }
+
+    @Override
+    public String getText(final LocTextKey key) {
+        return getText(key.name, key.args);
+    }
+
+    @Override
+    public String getText(final String key, final Object... args) {
+        return getText(key, key, args);
+    }
+
+    @Override
+    public String getText(final String key, final String def, final Object... args) {
+        return this.messageSource.getMessage(key, args, def, this.getCurrentLocale());
+    }
+
+    @Override
+    public String getText(final String key, final Locale locale, final Object... args) {
+        return getText(key, locale, key, args);
+    }
+
+    @Override
+    public String getText(final String key, final Locale locale, final String def, final Object... args) {
+        return this.messageSource.getMessage(key, args, def, locale);
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/i18n/impl/PolyglotPageServiceImpl.java

@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.i18n.impl;
+
+import java.util.Locale;
+import java.util.function.Consumer;
+
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+import org.springframework.context.annotation.Lazy;
+import org.springframework.stereotype.Service;
+
+import ch.ethz.seb.sebserver.gbl.profile.GuiProfile;
+import ch.ethz.seb.sebserver.gui.service.i18n.I18nSupport;
+import ch.ethz.seb.sebserver.gui.service.i18n.PolyglotPageService;
+import ch.ethz.seb.sebserver.gui.service.page.ComposerService;
+
+/** Service that supports page language change on the fly */
+@Lazy
+@Service
+@GuiProfile
+public final class PolyglotPageServiceImpl implements PolyglotPageService {
+
+    private final I18nSupport i18nSupport;
+
+    public PolyglotPageServiceImpl(final I18nSupport i18nSupport) {
+        this.i18nSupport = i18nSupport;
+    }
+
+    @Override
+    public I18nSupport getI18nSupport() {
+        return this.i18nSupport;
+    }
+
+    @Override
+    public void setDefaultPageLocale(final Composite root) {
+        setPageLocale(root, this.i18nSupport.getCurrentLocale());
+    }
+
+    @Override
+    @SuppressWarnings("unchecked")
+    public void setPageLocale(final Composite root, final Locale locale) {
+        this.i18nSupport.setSessionLocale(locale);
+        ComposerService.traversePageTree(
+                root,
+                comp -> comp.getData(POLYGLOT_WIDGET_FUNCTION_KEY) != null,
+                comp -> ((Consumer<Control>) comp.getData(POLYGLOT_WIDGET_FUNCTION_KEY)).accept(comp));
+
+        root.layout(true, true);
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/ComposerService.java

@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2019 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page;
+
+import java.util.function.Consumer;
+import java.util.function.Predicate;
+
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+
+import ch.ethz.seb.sebserver.gui.RAPConfiguration.EntryPointService;
+
+public interface ComposerService extends EntryPointService {
+
+    boolean validate(String composerName, PageContext pageContext);
+
+    PageDefinition mainPage();
+
+    PageDefinition loginPage();
+
+    void compose(
+            String composerName,
+            PageContext pageContext);
+
+    void compose(
+            Class<? extends TemplateComposer> composerType,
+            PageContext pageContext);
+
+    void composePage(
+            Class<? extends PageDefinition> pageType,
+            Composite root);
+
+    void composePage(
+            PageDefinition pageDefinition,
+            Composite root);
+
+    static void traversePageTree(
+            final Composite root,
+            final Predicate<Control> predicate,
+            final Consumer<Control> f) {
+
+        if (predicate.test(root)) {
+            f.accept(root);
+        }
+
+        final Control[] children = root.getChildren();
+        if (children != null) {
+            for (final Control control : children) {
+                if (!(control instanceof Composite)) {
+                    if (predicate.test(control)) {
+                        f.accept(control);
+                    }
+                } else {
+                    traversePageTree((Composite) control, predicate, f);
+                }
+            }
+        }
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/PageContext.java

@@ -0,0 +1,128 @@
+/*
+ * Copyright (c) 2019 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page;
+
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Shell;
+
+import ch.ethz.seb.sebserver.gui.service.page.event.PageEvent;
+
+public interface PageContext {
+
+    public static final class PageAttr {
+
+        public final String name;
+        public final String value;
+
+        public PageAttr(final String name, final String value) {
+            this.name = name;
+            this.value = value;
+        }
+    }
+
+    public interface AttributeKeys {
+
+        public static final String ATTR_PAGE_TEMPLATE_COMPOSER_NAME = "ATTR_PAGE_TEMPLATE_COMPOSER_NAME";
+
+        public static final String INSTITUTION_ID = "INSTITUTION_ID";
+
+//        public static final String USER_NAME = "USER_NAME";
+//        public static final String PASSWORD = "PASSWORD";
+//
+
+//
+//        public static final String CONFIG_ID = "CONFIG_ID";
+//        public static final String CONFIG_VIEW_NAME = "CONFIG_VIEW_NAME";
+//        public static final String CONFIG_ATTRIBUTE_SAVE_TYPE = "CONFIG_ATTRIBUTE_SAVE_TYPE";
+//        public static final String CONFIG_ATTRIBUTE_VALUE = "CONFIG_ATTRIBUTE_VALUE";
+//
+//        public static final String EXAM_ID = "EXAM_ID";
+//        public static final String STATE_NAME = "STATE_NAME";
+//
+//        public static final String AUTHORIZATION_CONTEXT = "AUTHORIZATION_CONTEXT";
+//        public static final String AUTHORIZATION_HEADER = "AUTHORIZATION_HEADER";
+        public static final String AUTHORIZATION_FAILURE = "AUTHORIZATION_FAILURE";
+        public static final String LGOUT_SUCCESS = "LGOUT_SUCCESS";
+
+    }
+
+    ComposerService composerService();
+
+    Shell getShell();
+
+    /** Get the page root Component.
+     *
+     * @return the page root Component. */
+    Composite getRoot();
+
+    /** Get the Component that is currently set as parent during page tree compose
+     *
+     * @return the parent Component */
+    Composite getParent();
+
+    /** Create a copy of this PageContext with a new parent Composite.
+     *
+     * @param parent the new parent Composite
+     * @return a copy of this PageContext with a new parent Composite. */
+    PageContext copyOf(Composite parent);
+
+    /** Create a copy of this PageContext with and additionally page context attributes.
+     * The additionally page context attributes will get merged with them already defined
+     *
+     * @param attributes additionally page context attributes.
+     * @return a copy of this PageContext with with and additionally page context attributes. */
+    PageContext copyOfAttributes(PageContext otherContext);
+
+    /** Adds the specified attribute to the existing page context attributes.
+     *
+     * @param key the key of the attribute
+     * @param value the value of the attribute
+     * @return this PageContext instance (builder pattern) */
+    PageContext withAttr(String key, String value);
+
+    String getAttribute(String name);
+
+    String getAttribute(String name, String def);
+
+    boolean hasAttribute(String name);
+
+    /** Publishes a given PageEvent to the current page tree
+     * This goes through the page-tree and collects all listeners the are listen to
+     * the specified page event type.
+     *
+     * @param event the concrete PageEvent instance */
+    <T extends PageEvent> void publishPageEvent(T event);
+
+    /** Apply a confirm dialog with a specified confirm message and a callback code
+     * block that will be executed on users OK selection.
+     *
+     * @param confirmMessage
+     * @param onOK callback code block that will be executed on users OK selection */
+    void applyConfirmDialog(String confirmMessage, Runnable onOK);
+
+    void forwardToPage(
+            PageDefinition pageDefinition,
+            PageContext pageContext);
+
+    void forwardToMainPage(PageContext pageContext);
+
+    void forwardToLoginPage(PageContext pageContext);
+
+    /** Notify an error dialog to the user with specified error message and
+     * optional exception instance
+     *
+     * @param errorMessage the error message to display
+     * @param error the error as Throwable */
+    void notifyError(String errorMessage, Throwable error);
+
+    void notifyError(Throwable error);
+
+    <T> T logoutOnError(Throwable error);
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/PageDefinition.java

@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2019 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page;
+
+public interface PageDefinition {
+
+    Class<? extends TemplateComposer> composer();
+
+    PageContext applyPageContext(PageContext pageContext);
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/PageEventListener.java

@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page;
+
+import ch.ethz.seb.sebserver.gui.service.page.event.PageEvent;
+
+public interface PageEventListener<T extends PageEvent> {
+
+    String LISTENER_ATTRIBUTE_KEY = "PageEventListener";
+
+    boolean match(Class<? extends PageEvent> eventType);
+
+    default int priority() {
+        return 1;
+    }
+
+    void notify(T event);
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/PopupMenuComposer.java

@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page;
+
+import org.eclipse.swt.widgets.Event;
+
+public interface PopupMenuComposer {
+
+    void onMenuEvent(final Event event);
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/TemplateComposer.java

@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page;
+
+public interface TemplateComposer {
+
+    default boolean validate(final PageContext context) {
+        return true;
+    }
+
+    void compose(PageContext composerCtx);
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/action/ActionDefinition.java

@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page.action;
+
+import ch.ethz.seb.sebserver.gui.service.widget.WidgetFactory.IconButtonType;
+
+public enum ActionDefinition {
+
+    INSTITUTION_NEW(
+            "actions.new.institution",
+            IconButtonType.NEW_ACTION),
+
+    INSTITUTION_MODIFY(
+            "actions.modify.institution",
+            IconButtonType.SAVE_ACTION),
+
+    INSTITUTION_DELETE(
+            "actions.delete.institution",
+            IconButtonType.DELETE_ACTION),
+
+    LMS_SETUP_NEW(
+            "New LMS Setup",
+            IconButtonType.NEW_ACTION),
+
+    LMS_SETUP_MODIFY(
+            "Save LMS Setup",
+            IconButtonType.SAVE_ACTION),
+
+    LMS_SETUP_DELETE(
+            "Delete LMS Setup",
+            IconButtonType.DELETE_ACTION),
+
+    LMS_SETUP_TEST(
+            "Test LMS Setup",
+            IconButtonType.SAVE_ACTION),
+
+    SEB_CONFIG_NEW(
+            "New Configuration",
+            IconButtonType.NEW_ACTION),
+
+    SEB_CONFIG_MODIFY(
+            "Save Configuration",
+            IconButtonType.SAVE_ACTION),
+
+    SEB_CONFIG_DELETE(
+            "Delete Configuration",
+            IconButtonType.DELETE_ACTION),
+
+    EXAM_IMPORT(
+            "Import Exam",
+            IconButtonType.SAVE_ACTION),
+
+    EXAM_EDIT(
+            "Edit Selected Exam",
+            IconButtonType.NEW_ACTION),
+
+    EXAM_DELETE(
+            "Delete Selected Exam",
+            IconButtonType.DELETE_ACTION),
+
+    ;
+
+    public final String name;
+    public final IconButtonType icon;
+
+    private ActionDefinition(final String name, final IconButtonType icon) {
+        this.name = name;
+        this.icon = icon;
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/action/ActionPane.java

@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page.action;
+
+import org.eclipse.rap.rwt.RWT;
+import org.eclipse.rap.rwt.template.ImageCell;
+import org.eclipse.rap.rwt.template.Template;
+import org.eclipse.rap.rwt.template.TextCell;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.widgets.Label;
+import org.eclipse.swt.widgets.Tree;
+import org.eclipse.swt.widgets.TreeItem;
+import org.springframework.context.annotation.Lazy;
+import org.springframework.stereotype.Component;
+
+import ch.ethz.seb.sebserver.gui.service.i18n.LocTextKey;
+import ch.ethz.seb.sebserver.gui.service.page.PageContext;
+import ch.ethz.seb.sebserver.gui.service.page.PageEventListener;
+import ch.ethz.seb.sebserver.gui.service.page.TemplateComposer;
+import ch.ethz.seb.sebserver.gui.service.page.event.ActionPublishEvent;
+import ch.ethz.seb.sebserver.gui.service.page.event.ActionPublishEventListener;
+import ch.ethz.seb.sebserver.gui.service.widget.WidgetFactory;
+
+@Lazy
+@Component
+public class ActionPane implements TemplateComposer {
+
+    private static final String ACTION_EVENT_CALL_KEY = "ACTION_EVENT_CALL";
+
+    private final WidgetFactory widgetFactory;
+
+    public ActionPane(final WidgetFactory widgetFactory) {
+        super();
+        this.widgetFactory = widgetFactory;
+    }
+
+    @Override
+    public void compose(final PageContext composerCtx) {
+
+        final Label label = this.widgetFactory.labelLocalized(
+                composerCtx.getParent(),
+                "h3",
+                new LocTextKey("sebserver.actionpane.title"));
+        final GridData titleLayout = new GridData(SWT.FILL, SWT.TOP, true, false);
+        titleLayout.verticalIndent = 10;
+        titleLayout.horizontalIndent = 10;
+        label.setLayoutData(titleLayout);
+
+        final Tree actions = this.widgetFactory.treeLocalized(composerCtx.getParent(), SWT.SINGLE | SWT.FULL_SELECTION);
+        actions.setData(RWT.CUSTOM_VARIANT, "actions");
+        final GridData gridData = new GridData(SWT.FILL, SWT.FILL, true, true);
+        actions.setLayoutData(gridData);
+        final Template template = new Template();
+        final ImageCell imageCell = new ImageCell(template);
+        imageCell.setLeft(0, 0).setWidth(40).setTop(0).setBottom(0, 0).setHorizontalAlignment(SWT.LEFT);
+        imageCell.setBindingIndex(0);
+        final TextCell textCell = new TextCell(template);
+        textCell.setLeft(0, 30).setWidth(150).setTop(7).setBottom(0, 0).setHorizontalAlignment(SWT.LEFT);
+        textCell.setBindingIndex(0);
+        actions.setData(RWT.ROW_TEMPLATE, template);
+
+        actions.addListener(SWT.Selection, event -> {
+            final TreeItem treeItem = (TreeItem) event.item;
+
+            final Runnable action = (Runnable) treeItem.getData(ACTION_EVENT_CALL_KEY);
+            action.run();
+
+            if (!treeItem.isDisposed()) {
+                treeItem.getParent().deselectAll();
+            }
+        });
+
+        actions.setData(
+                PageEventListener.LISTENER_ATTRIBUTE_KEY,
+                new ActionPublishEventListener() {
+                    @Override
+                    public void notify(final ActionPublishEvent event) {
+                        final TreeItem actionItem = ActionPane.this.widgetFactory.treeItemLocalized(
+                                actions,
+                                event.actionDefinition.name);
+                        actionItem.setImage(event.actionDefinition.icon.getImage(composerCtx.getParent().getDisplay()));
+                        actionItem.setData(ACTION_EVENT_CALL_KEY,
+                                new SafeActionExecution(composerCtx, event, event.run));
+                    }
+                });
+
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/action/InstitutionActions.java

@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page.action;
+
+public interface InstitutionActions {
+
+//    /** Use this higher-order function to create a new Institution action Runnable.
+//     *
+//     * @return */
+//    static Runnable newInstitution(final PageContext composerCtx, final RestServices restServices) {
+//        return () -> {
+//            final IdAndName newInstitutionId = restServices
+//                    .sebServerAPICall(NewInstitution.class)
+//                    .doAPICall()
+//                    .onErrorThrow("Unexpected Error");
+//            composerCtx.notify(new ActionEvent(ActionDefinition.INSTITUTION_NEW, newInstitutionId));
+//        };
+//    }
+//
+//    /** Use this higher-order function to create a delete Institution action Runnable.
+//     *
+//     * @return */
+//    static Runnable deleteInstitution(final PageContext composerCtx, final RestServices restServices,
+//            final String instId) {
+//        return () -> {
+//            restServices
+//                    .sebServerAPICall(DeleteInstitution.class)
+//                    .attribute(AttributeKeys.INSTITUTION_ID, instId)
+//                    .doAPICall()
+//                    .onErrorThrow("Unexpected Error");
+//            composerCtx.notify(new ActionEvent(ActionDefinition.INSTITUTION_DELETE, instId));
+//        };
+//    }
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/action/SafeActionExecution.java

@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page.action;
+
+import org.apache.commons.lang3.StringUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import ch.ethz.seb.sebserver.gui.service.page.PageContext;
+import ch.ethz.seb.sebserver.gui.service.page.event.ActionPublishEvent;
+
+public class SafeActionExecution implements Runnable {
+
+    private static final Logger log = LoggerFactory.getLogger(SafeActionExecution.class);
+
+    private final PageContext pageContext;
+    private final ActionPublishEvent actionEvent;
+    private final Runnable actionExecution;
+
+    public SafeActionExecution(
+            final PageContext pageContext,
+            final ActionPublishEvent actionEvent,
+            final Runnable actionExecution) {
+
+        this.pageContext = pageContext;
+        this.actionEvent = actionEvent;
+        this.actionExecution = actionExecution;
+    }
+
+    @Override
+    public void run() {
+        try {
+            if (StringUtils.isNotBlank(this.actionEvent.confirmationMessage)) {
+                this.pageContext.applyConfirmDialog(
+                        this.actionEvent.confirmationMessage,
+                        createConfirmationCallback());
+            } else {
+                this.actionExecution.run();
+            }
+        } catch (final Throwable t) {
+            log.error("Failed to execute action: {}", this.actionEvent, t);
+            this.pageContext.notifyError("action.error.unexpected.message", t);
+        }
+    }
+
+    private final Runnable createConfirmationCallback() {
+        return new Runnable() {
+
+            @Override
+            public void run() {
+                try {
+                    SafeActionExecution.this.actionExecution.run();
+                } catch (final Throwable t) {
+                    log.error("Failed to execute action: {}", SafeActionExecution.this.actionEvent, t);
+                    SafeActionExecution.this.pageContext.notifyError("action.error.unexpected.message", t);
+                }
+
+            }
+        };
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/activity/ActivitiesPane.java

@@ -0,0 +1,281 @@
+/*
+ * Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page.activity;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.EnumMap;
+import java.util.List;
+import java.util.Map;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.widgets.Event;
+import org.eclipse.swt.widgets.Label;
+import org.eclipse.swt.widgets.Tree;
+import org.eclipse.swt.widgets.TreeItem;
+import org.springframework.context.annotation.Lazy;
+import org.springframework.stereotype.Component;
+
+import ch.ethz.seb.sebserver.gbl.model.EntityName;
+import ch.ethz.seb.sebserver.gbl.model.user.UserInfo;
+import ch.ethz.seb.sebserver.gbl.model.user.UserRole;
+import ch.ethz.seb.sebserver.gui.service.i18n.LocTextKey;
+import ch.ethz.seb.sebserver.gui.service.page.PageContext;
+import ch.ethz.seb.sebserver.gui.service.page.PageEventListener;
+import ch.ethz.seb.sebserver.gui.service.page.TemplateComposer;
+import ch.ethz.seb.sebserver.gui.service.page.action.ActionDefinition;
+import ch.ethz.seb.sebserver.gui.service.page.activity.ActivitySelection.Activity;
+import ch.ethz.seb.sebserver.gui.service.page.event.ActionEvent;
+import ch.ethz.seb.sebserver.gui.service.page.event.ActionEventListener;
+import ch.ethz.seb.sebserver.gui.service.page.event.ActivitySelectionEvent;
+import ch.ethz.seb.sebserver.gui.service.page.impl.MainPageState;
+import ch.ethz.seb.sebserver.gui.service.remote.webservice.api.RestService;
+import ch.ethz.seb.sebserver.gui.service.remote.webservice.api.institution.GetInstitutionNames;
+import ch.ethz.seb.sebserver.gui.service.remote.webservice.auth.AuthorizationContextHolder;
+import ch.ethz.seb.sebserver.gui.service.widget.WidgetFactory;
+
+@Lazy
+@Component
+public class ActivitiesPane implements TemplateComposer {
+
+    private final WidgetFactory widgetFactory;
+    private final RestService restService;
+    private final AuthorizationContextHolder authorizationContextHolder;
+
+    private final Map<ActionDefinition, ActivityActionHandler> activityActionHandler =
+            new EnumMap<>(ActionDefinition.class);
+
+    public ActivitiesPane(
+            final WidgetFactory widgetFactory,
+            final RestService restService,
+            final AuthorizationContextHolder authorizationContextHolder,
+            final Collection<ActivityActionHandler> activityActionHandler) {
+
+        this.widgetFactory = widgetFactory;
+        this.restService = restService;
+        this.authorizationContextHolder = authorizationContextHolder;
+
+        for (final ActivityActionHandler aah : activityActionHandler) {
+            this.activityActionHandler.put(aah.handlesAction(), aah);
+        }
+    }
+
+    @Override
+    public void compose(final PageContext pageContext) {
+        final UserInfo userInfo = this.authorizationContextHolder
+                .getAuthorizationContext()
+                .getLoggedInUser()
+                .get(pageContext::logoutOnError);
+
+        final Label activities = this.widgetFactory.labelLocalized(
+                pageContext.getParent(),
+                "h3",
+                new LocTextKey("sebserver.activitiespane.title"));
+        final GridData activitiesGridData = new GridData(SWT.FILL, SWT.TOP, true, false);
+        activitiesGridData.horizontalIndent = 20;
+        activities.setLayoutData(activitiesGridData);
+
+        final Tree navigation =
+                this.widgetFactory.treeLocalized(pageContext.getParent(), SWT.SINGLE | SWT.FULL_SELECTION);
+        final GridData navigationGridData = new GridData(SWT.FILL, SWT.FILL, true, true);
+        navigationGridData.horizontalIndent = 10;
+        navigation.setLayoutData(navigationGridData);
+
+        final List<EntityName> insitutionNames = this.restService
+                .getBuilder(GetInstitutionNames.class)
+                .call()
+                .get(pageContext::notifyError, () -> Collections.emptyList());
+
+        if (userInfo.hasRole(UserRole.SEB_SERVER_ADMIN)) {
+            // institutions (list) as root
+            final TreeItem institutions = this.widgetFactory.treeItemLocalized(
+                    navigation,
+                    Activity.INSTITUTION_ROOT.title);
+            ActivitySelection.inject(institutions, Activity.INSTITUTION_ROOT.createSelection());
+
+            for (final EntityName inst : insitutionNames) {
+                createInstitutionItem(institutions, inst);
+            }
+        } else {
+            final EntityName inst = insitutionNames.iterator().next();
+            createInstitutionItem(navigation, inst);
+        }
+
+//        final TreeItem user = this.widgetFactory.treeItemLocalized(
+//                navigation,
+//                "org.sebserver.activities.user");
+//        ActivitySelection.set(user, Activity.USERS.createSelection());
+//
+//        final TreeItem configs = this.widgetFactory.treeItemLocalized(
+//                navigation,
+//                "org.sebserver.activities.sebconfigs");
+//        ActivitySelection.set(configs, Activity.SEB_CONFIGS.createSelection());
+//
+//        final TreeItem config = this.widgetFactory.treeItemLocalized(
+//                configs,
+//                "org.sebserver.activities.sebconfig");
+//        ActivitySelection.set(config, Activity.SEB_CONFIG.createSelection());
+//
+//        final TreeItem configTemplates = this.widgetFactory.treeItemLocalized(
+//                configs,
+//                "org.sebserver.activities.sebconfig.templates");
+//        ActivitySelection.set(configTemplates, Activity.SEB_CONFIG_TEMPLATES.createSelection());
+//
+//        final TreeItem exams = this.widgetFactory.treeItemLocalized(
+//                navigation,
+//                "org.sebserver.activities.exam");
+//        ActivitySelection.set(exams, Activity.EXAMS.createSelection());
+//
+//        final TreeItem monitoring = this.widgetFactory.treeItemLocalized(
+//                navigation,
+//                "org.sebserver.activities.monitoring");
+//        ActivitySelection.set(monitoring, Activity.MONITORING.createSelection());
+//
+//        final TreeItem runningExams = this.widgetFactory.treeItemLocalized(
+//                monitoring,
+//                "org.sebserver.activities.runningExams");
+//        ActivitySelection.set(runningExams, Activity.RUNNING_EXAMS.createSelection()
+//                .withExpandFunction(this::runningExamExpand));
+//        runningExams.setItemCount(1);
+//
+//        final TreeItem logs = this.widgetFactory.treeItemLocalized(
+//                monitoring,
+//                "org.sebserver.activities.logs");
+//        ActivitySelection.set(logs, Activity.LOGS.createSelection());
+
+        navigation.addListener(SWT.Expand, this::handleExpand);
+        navigation.addListener(SWT.Selection, event -> handleSelection(pageContext, event));
+
+        navigation.setData(
+                PageEventListener.LISTENER_ATTRIBUTE_KEY,
+                new ActionEventListener() {
+                    @Override
+                    public void notify(final ActionEvent event) {
+                        final ActivityActionHandler aah =
+                                ActivitiesPane.this.activityActionHandler.get(event.actionDefinition);
+                        if (aah != null) {
+                            aah.notifyAction(event, navigation, pageContext);
+                        }
+                    }
+                });
+
+        // page-selection on (re)load
+        final MainPageState mainPageState = MainPageState.get();
+
+        if (mainPageState.activitySelection == null) {
+            mainPageState.activitySelection = ActivitySelection.get(navigation.getItem(0));
+        }
+        pageContext.publishPageEvent(
+                new ActivitySelectionEvent(mainPageState.activitySelection));
+    }
+
+//    private void runningExamExpand(final TreeItem item) {
+//        item.removeAll();
+//        final List<EntityName> runningExamNames = this.restService
+//                .sebServerCall(GetRunningExamNames.class)
+//                .onError(t -> {
+//                    throw new RuntimeException(t);
+//                });
+//
+//        if (runningExamNames != null) {
+//            for (final EntityName runningExamName : runningExamNames) {
+//                final TreeItem runningExams = this.widgetFactory.treeItemLocalized(
+//                        item,
+//                        runningExamName.name);
+//                ActivitySelection.set(runningExams, Activity.RUNNING_EXAM.createSelection(runningExamName));
+//            }
+//        }
+//    }
+
+    private void handleExpand(final Event event) {
+        final TreeItem treeItem = (TreeItem) event.item;
+
+        System.out.println("opened: " + treeItem);
+
+        final ActivitySelection activity = ActivitySelection.get(treeItem);
+        if (activity != null) {
+            activity.processExpand(treeItem);
+        }
+    }
+
+    private void handleSelection(final PageContext composerCtx, final Event event) {
+        final TreeItem treeItem = (TreeItem) event.item;
+
+        System.out.println("selected: " + treeItem);
+
+        final MainPageState mainPageState = MainPageState.get();
+        final ActivitySelection activitySelection = ActivitySelection.get(treeItem);
+        if (mainPageState.activitySelection == null) {
+            mainPageState.activitySelection = Activity.NONE.createSelection();
+        }
+        if (!mainPageState.activitySelection.equals(activitySelection)) {
+            mainPageState.activitySelection = activitySelection;
+            composerCtx.publishPageEvent(
+                    new ActivitySelectionEvent(mainPageState.activitySelection));
+        }
+    }
+
+    static TreeItem createInstitutionItem(final Tree parent, final EntityName idAndName) {
+        final TreeItem institution = new TreeItem(parent, SWT.NONE);
+        createInstitutionItem(idAndName, institution);
+        return institution;
+    }
+
+    static TreeItem createInstitutionItem(final TreeItem parent, final EntityName idAndName) {
+        final TreeItem institution = new TreeItem(parent, SWT.NONE);
+        createInstitutionItem(idAndName, institution);
+        return institution;
+    }
+
+    static void createInstitutionItem(final EntityName idAndName, final TreeItem institution) {
+        institution.setText(idAndName.name);
+        ActivitySelection.inject(institution, Activity.INSTITUTION_NODE.createSelection(idAndName));
+    }
+
+    static final TreeItem findItemByActivity(
+            final TreeItem[] items,
+            final Activity activity,
+            final String objectId) {
+
+        if (items == null) {
+            return null;
+        }
+
+        for (final TreeItem item : items) {
+            final ActivitySelection activitySelection = ActivitySelection.get(item);
+            final String id = activitySelection.getObjectIdentifier();
+            if (activitySelection != null && activitySelection.activity == activity &&
+                    (id == null || (objectId != null && objectId.equals(id)))) {
+                return item;
+            }
+
+            final TreeItem _item = findItemByActivity(item.getItems(), activity, objectId);
+            if (_item != null) {
+                return _item;
+            }
+        }
+
+        return null;
+    }
+
+    static final TreeItem findItemByActivity(final TreeItem[] items, final Activity activity) {
+        return findItemByActivity(items, activity, null);
+    }
+
+    static final void expand(final TreeItem item) {
+        if (item == null) {
+            return;
+        }
+
+        item.setExpanded(true);
+        expand(item.getParentItem());
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/activity/ActivityActionHandler.java

@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page.activity;
+
+import org.eclipse.swt.widgets.Tree;
+
+import ch.ethz.seb.sebserver.gui.service.page.PageContext;
+import ch.ethz.seb.sebserver.gui.service.page.action.ActionDefinition;
+import ch.ethz.seb.sebserver.gui.service.page.event.ActionEvent;
+
+public interface ActivityActionHandler {
+
+    public ActionDefinition handlesAction();
+
+    void notifyAction(
+            final ActionEvent event,
+            final Tree navigation,
+            final PageContext composerCtx);
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/activity/ActivitySelection.java

@@ -0,0 +1,162 @@
+/*
+ * Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page.activity;
+
+import java.util.function.Consumer;
+
+import org.eclipse.swt.widgets.TreeItem;
+
+import ch.ethz.seb.sebserver.gbl.model.EntityName;
+import ch.ethz.seb.sebserver.gui.service.i18n.LocTextKey;
+import ch.ethz.seb.sebserver.gui.service.page.PageContext.AttributeKeys;
+import ch.ethz.seb.sebserver.gui.service.page.TemplateComposer;
+import ch.ethz.seb.sebserver.gui.service.page.action.ActionPane;
+import ch.ethz.seb.sebserver.gui.service.page.impl.TODOTemplate;
+
+public class ActivitySelection {
+
+    public static final Consumer<TreeItem> EMPTY_FUNCTION = ti -> {
+    };
+    public static final Consumer<TreeItem> COLLAPSE_NONE_EMPTY = ti -> {
+        ti.removeAll();
+        ti.setItemCount(1);
+    };
+
+    public enum Activity {
+        NONE(TODOTemplate.class, TODOTemplate.class, (String) null),
+        INSTITUTION_ROOT(
+                TODOTemplate.class,
+                ActionPane.class,
+                new LocTextKey("sebserver.activities.inst")),
+        INSTITUTION_NODE(
+                TODOTemplate.class,
+                ActionPane.class,
+                AttributeKeys.INSTITUTION_ID),
+//
+//        USERS(UserAccountsForm.class, ActionPane.class),
+//
+//        EXAMS(ExamsListPage.class, ActionPane.class),
+//        SEB_CONFIGS(SEBConfigurationForm.class, ActionPane.class),
+//        SEB_CONFIG(SEBConfigurationPage.class, ActionPane.class),
+//        SEB_CONFIG_TEMPLATES(TODOTemplate.class, ActionPane.class),
+//        MONITORING(MonitoringForm.class, ActionPane.class),
+//        RUNNING_EXAMS(RunningExamForm.class, ActionPane.class),
+//        RUNNING_EXAM(RunningExamPage.class, ActionPane.class, AttributeKeys.EXAM_ID),
+//        LOGS(TODOTemplate.class, ActionPane.class),
+        ;
+
+        public final LocTextKey title;
+        public final Class<? extends TemplateComposer> contentPaneComposer;
+        public final Class<? extends TemplateComposer> actionPaneComposer;
+        public final String objectIdentifierAttribute;
+
+        private Activity(
+                final Class<? extends TemplateComposer> objectPaneComposer,
+                final Class<? extends TemplateComposer> selectionPaneComposer,
+                final LocTextKey title) {
+
+            this.title = title;
+            this.contentPaneComposer = objectPaneComposer;
+            this.actionPaneComposer = selectionPaneComposer;
+            this.objectIdentifierAttribute = null;
+        }
+
+        private Activity(
+                final Class<? extends TemplateComposer> objectPaneComposer,
+                final Class<? extends TemplateComposer> selectionPaneComposer,
+                final String objectIdentifierAttribute) {
+
+            this.title = null;
+            this.contentPaneComposer = objectPaneComposer;
+            this.actionPaneComposer = selectionPaneComposer;
+            this.objectIdentifierAttribute = objectIdentifierAttribute;
+        }
+
+        public final ActivitySelection createSelection() {
+            return new ActivitySelection(this);
+        }
+
+        public final ActivitySelection createSelection(final EntityName entityName) {
+            return new ActivitySelection(this, entityName);
+        }
+    }
+
+    private static final String ATTR_ACTIVITY_SELECTION = "ACTIVITY_SELECTION";
+
+    public final Activity activity;
+    public final EntityName entityName;
+    Consumer<TreeItem> expandFunction = EMPTY_FUNCTION;
+
+    ActivitySelection(final Activity activity) {
+        this(activity, null);
+    }
+
+    ActivitySelection(final Activity activity, final EntityName entityName) {
+        this.activity = activity;
+        this.entityName = entityName;
+        this.expandFunction = EMPTY_FUNCTION;
+    }
+
+    public ActivitySelection withExpandFunction(final Consumer<TreeItem> expandFunction) {
+        if (expandFunction == null) {
+            this.expandFunction = EMPTY_FUNCTION;
+        }
+        this.expandFunction = expandFunction;
+        return this;
+    }
+
+    public String getObjectIdentifier() {
+        if (this.entityName == null) {
+            return null;
+        }
+
+        return this.entityName.modelId;
+    }
+
+    public void processExpand(final TreeItem item) {
+        this.expandFunction.accept(item);
+    }
+
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = 1;
+        result = prime * result + ((this.activity == null) ? 0 : this.activity.hashCode());
+        result = prime * result + ((this.entityName == null) ? 0 : this.entityName.hashCode());
+        return result;
+    }
+
+    @Override
+    public boolean equals(final Object obj) {
+        if (this == obj)
+            return true;
+        if (obj == null)
+            return false;
+        if (getClass() != obj.getClass())
+            return false;
+        final ActivitySelection other = (ActivitySelection) obj;
+        if (this.activity != other.activity)
+            return false;
+        if (this.entityName == null) {
+            if (other.entityName != null)
+                return false;
+        } else if (!this.entityName.equals(other.entityName))
+            return false;
+        return true;
+    }
+
+    public static ActivitySelection get(final TreeItem item) {
+        return (ActivitySelection) item.getData(ATTR_ACTIVITY_SELECTION);
+    }
+
+    public static void inject(final TreeItem item, final ActivitySelection selection) {
+        item.setData(ATTR_ACTIVITY_SELECTION, selection);
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/event/ActionEvent.java

@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page.event;
+
+import ch.ethz.seb.sebserver.gui.service.page.action.ActionDefinition;
+
+public final class ActionEvent implements PageEvent {
+
+    public final ActionDefinition actionDefinition;
+    public final Object source;
+
+    public ActionEvent(
+            final ActionDefinition actionDefinition,
+            final Object source) {
+
+        this.actionDefinition = actionDefinition;
+        this.source = source;
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/event/ActionEventListener.java

@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page.event;
+
+import java.util.function.Consumer;
+import java.util.function.Predicate;
+
+import org.eclipse.swt.widgets.Widget;
+
+import ch.ethz.seb.sebserver.gui.service.page.PageEventListener;
+import ch.ethz.seb.sebserver.gui.service.page.action.ActionDefinition;
+
+public interface ActionEventListener extends PageEventListener<ActionEvent> {
+
+    @Override
+    default boolean match(final Class<? extends PageEvent> type) {
+        return type == ActionEvent.class;
+    }
+
+    static ActionEventListener of(final Consumer<ActionEvent> eventConsumer) {
+        return new ActionEventListener() {
+            @Override
+            public void notify(final ActionEvent event) {
+                eventConsumer.accept(event);
+            }
+        };
+    }
+
+    static ActionEventListener of(
+            final Predicate<ActionEvent> predicate,
+            final Consumer<ActionEvent> eventConsumer) {
+
+        return new ActionEventListener() {
+            @Override
+            public void notify(final ActionEvent event) {
+                if (predicate.test(event)) {
+                    eventConsumer.accept(event);
+                }
+            }
+        };
+    }
+
+    static ActionEventListener of(
+            final ActionDefinition actionDefinition,
+            final Consumer<ActionEvent> eventConsumer) {
+
+        return new ActionEventListener() {
+            @Override
+            public void notify(final ActionEvent event) {
+                if (event.actionDefinition == actionDefinition) {
+                    eventConsumer.accept(event);
+                }
+            }
+        };
+    }
+
+    static void injectListener(
+            final Widget widget,
+            final ActionDefinition actionDefinition,
+            final Consumer<ActionEvent> eventConsumer) {
+
+        widget.setData(
+                PageEventListener.LISTENER_ATTRIBUTE_KEY,
+                of(actionDefinition, eventConsumer));
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/event/ActionPublishEvent.java

@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page.event;
+
+import ch.ethz.seb.sebserver.gui.service.page.action.ActionDefinition;
+
+public class ActionPublishEvent implements PageEvent {
+
+    public final ActionDefinition actionDefinition;
+    public final Runnable run;
+    public final String confirmationMessage;
+    public final String successMessage;
+
+    public ActionPublishEvent(
+            final ActionDefinition actionDefinition,
+            final Runnable run) {
+
+        this(actionDefinition, run, null, null);
+    }
+
+    public ActionPublishEvent(
+            final ActionDefinition actionDefinition,
+            final Runnable run,
+            final String confirmationMessage) {
+
+        this(actionDefinition, run, confirmationMessage, null);
+    }
+
+    public ActionPublishEvent(
+            final ActionDefinition actionDefinition,
+            final Runnable run,
+            final String confirmationMessage,
+            final String successMessage) {
+
+        this.actionDefinition = actionDefinition;
+        this.run = run;
+        this.confirmationMessage = confirmationMessage;
+        this.successMessage = successMessage;
+    }
+
+    @Override
+    public String toString() {
+        return "ActionPublishEvent [actionDefinition=" + this.actionDefinition + ", confirmationMessage="
+                + this.confirmationMessage + ", successMessage=" + this.successMessage + "]";
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/event/ActionPublishEventListener.java

@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page.event;
+
+import ch.ethz.seb.sebserver.gui.service.page.PageEventListener;
+
+public interface ActionPublishEventListener extends PageEventListener<ActionPublishEvent> {
+
+    @Override
+    default boolean match(final Class<? extends PageEvent> type) {
+        return type == ActionPublishEvent.class;
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/event/ActivitySelectionEvent.java

@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page.event;
+
+import ch.ethz.seb.sebserver.gui.service.page.activity.ActivitySelection;
+
+public class ActivitySelectionEvent implements PageEvent {
+
+    public final ActivitySelection selection;
+
+    public ActivitySelectionEvent(final ActivitySelection selection) {
+        this.selection = selection;
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/event/ActivitySelectionListener.java

@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page.event;
+
+import ch.ethz.seb.sebserver.gui.service.page.PageEventListener;
+
+public interface ActivitySelectionListener extends PageEventListener<ActivitySelectionEvent> {
+
+    @Override
+    default boolean match(final Class<? extends PageEvent> eventType) {
+        return eventType == ActivitySelectionEvent.class;
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/event/LogoutEvent.java

@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2019 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page.event;
+
+import ch.ethz.seb.sebserver.gui.service.page.PageContext;
+
+public final class LogoutEvent implements PageEvent {
+
+    public final PageContext pageContext;
+
+    public LogoutEvent(final PageContext pageContext) {
+        this.pageContext = pageContext;
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/event/LogoutEventListener.java

@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2019 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page.event;
+
+import ch.ethz.seb.sebserver.gui.service.page.PageEventListener;
+
+public interface LogoutEventListener extends PageEventListener<LogoutEvent> {
+
+    @Override
+    default boolean match(final Class<? extends PageEvent> eventType) {
+        return eventType == LogoutEvent.class;
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/event/PageEvent.java

@@ -0,0 +1,13 @@
+/*
+ * Copyright (c) 2019 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page.event;
+
+public interface PageEvent {
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/impl/ComposerServiceImpl.java

@@ -0,0 +1,186 @@
+/*
+ * Copyright (c) 2019 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page.impl;
+
+import java.util.Collection;
+import java.util.Map;
+import java.util.function.Function;
+import java.util.stream.Collectors;
+
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.context.annotation.Lazy;
+import org.springframework.stereotype.Service;
+
+import ch.ethz.seb.sebserver.gbl.profile.GuiProfile;
+import ch.ethz.seb.sebserver.gui.service.i18n.I18nSupport;
+import ch.ethz.seb.sebserver.gui.service.page.ComposerService;
+import ch.ethz.seb.sebserver.gui.service.page.PageContext;
+import ch.ethz.seb.sebserver.gui.service.page.PageDefinition;
+import ch.ethz.seb.sebserver.gui.service.page.TemplateComposer;
+import ch.ethz.seb.sebserver.gui.service.remote.webservice.auth.AuthorizationContextHolder;
+
+@Lazy
+@Service
+@GuiProfile
+public class ComposerServiceImpl implements ComposerService {
+
+    private static final Logger log = LoggerFactory.getLogger(ComposerServiceImpl.class);
+
+    // TODO configurable
+    private final Class<? extends PageDefinition> loginPageType = DefaultLoginPage.class;
+    private final Class<? extends PageDefinition> mainPageType = DefaultMainPage.class;
+
+    final AuthorizationContextHolder authorizationContextHolder;
+    private final I18nSupport i18nSupport;
+    private final Map<String, TemplateComposer> composer;
+    private final Map<String, PageDefinition> pages;
+
+    public ComposerServiceImpl(
+            final AuthorizationContextHolder authorizationContextHolder,
+            final I18nSupport i18nSupport,
+            final Collection<TemplateComposer> composer,
+            final Collection<PageDefinition> pageDefinitions) {
+
+        this.authorizationContextHolder = authorizationContextHolder;
+        this.i18nSupport = i18nSupport;
+        this.composer = composer
+                .stream()
+                .collect(Collectors.toMap(
+                        comp -> comp.getClass().getName(),
+                        Function.identity()));
+
+        this.pages = pageDefinitions
+                .stream()
+                .collect(Collectors.toMap(
+                        page -> page.getClass().getName(),
+                        Function.identity()));
+    }
+
+    @Override
+    public PageDefinition mainPage() {
+        return this.pages.get(this.mainPageType.getName());
+    }
+
+    @Override
+    public PageDefinition loginPage() {
+        return this.pages.get(this.loginPageType.getName());
+    }
+
+    @Override
+    public boolean validate(final String composerName, final PageContext pageContext) {
+        if (!this.composer.containsKey(composerName)) {
+            return false;
+        }
+
+        return this.composer
+                .get(composerName)
+                .validate(pageContext);
+    }
+
+    @Override
+    public void compose(
+            final Class<? extends TemplateComposer> composerType,
+            final PageContext pageContext) {
+
+        compose(composerType.getName(), pageContext);
+    }
+
+    @Override
+    public void compose(
+            final String name,
+            final PageContext pageContext) {
+
+        if (!this.composer.containsKey(name)) {
+            log.error("No TemplateComposer with name: " + name + " found. Check Spring confiuration and beans");
+            return;
+        }
+
+        final TemplateComposer composer = this.composer.get(name);
+
+        if (composer.validate(pageContext)) {
+
+            clear(pageContext.getParent());
+
+            try {
+                composer.compose(pageContext);
+            } catch (final Exception e) {
+                log.warn("Failed to compose: {}, pageContext: {}", name, pageContext, e);
+            }
+
+            try {
+                pageContext.getParent().layout();
+            } catch (final Exception e) {
+                log.warn("Failed to layout new composition: {}, pageContext: {}", name, pageContext, e);
+            }
+
+        } else {
+            log.error(
+                    "Invalid or missing mandatory attributes to handle compose request of ViewComposer: {} pageContext: {}",
+                    name,
+                    pageContext);
+        }
+
+    }
+
+    @Override
+    public void composePage(
+            final PageDefinition pageDefinition,
+            final Composite root) {
+
+        compose(
+                pageDefinition.composer(),
+                pageDefinition.applyPageContext(createPageContext(root)));
+    }
+
+    @Override
+    public void composePage(
+            final Class<? extends PageDefinition> pageType,
+            final Composite root) {
+
+        final String pageName = pageType.getName();
+        if (!this.pages.containsKey(pageName)) {
+            log.error("Unknown page with name: {}", pageName);
+            return;
+        }
+
+        final PageDefinition pageDefinition = this.pages.get(pageName);
+        compose(
+                pageDefinition.composer(),
+                pageDefinition.applyPageContext(createPageContext(root)));
+    }
+
+    @Override
+    public void loadLoginPage(final Composite parent) {
+        composePage(this.loginPageType, parent);
+    }
+
+    @Override
+    public void loadMainPage(final Composite parent) {
+        composePage(this.mainPageType, parent);
+    }
+
+    private PageContext createPageContext(final Composite root) {
+        return new PageContextImpl(
+                this.i18nSupport, this, root, root, null);
+    }
+
+    private void clear(final Composite parent) {
+        if (parent == null) {
+            return;
+        }
+
+        for (final Control control : parent.getChildren()) {
+            control.dispose();
+        }
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/impl/DefaultLoginPage.java

@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2019 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page.impl;
+
+import org.springframework.context.annotation.Lazy;
+import org.springframework.stereotype.Component;
+
+import ch.ethz.seb.sebserver.gui.service.page.PageContext;
+import ch.ethz.seb.sebserver.gui.service.page.PageContext.AttributeKeys;
+import ch.ethz.seb.sebserver.gui.service.page.PageDefinition;
+import ch.ethz.seb.sebserver.gui.service.page.TemplateComposer;
+
+/** Default login page works with the DefaultPageLayout and the
+ * SEBLogin template */
+@Lazy
+@Component
+public class DefaultLoginPage implements PageDefinition {
+
+    @Override
+    public Class<? extends TemplateComposer> composer() {
+        return DefaultPageLayout.class;
+    }
+
+    @Override
+    public PageContext applyPageContext(final PageContext pageContext) {
+        return pageContext.withAttr(
+                AttributeKeys.ATTR_PAGE_TEMPLATE_COMPOSER_NAME,
+                SEBLogin.class.getName());
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/impl/DefaultMainPage.java

@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2019 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page.impl;
+
+import org.springframework.context.annotation.Lazy;
+import org.springframework.stereotype.Component;
+
+import ch.ethz.seb.sebserver.gui.service.page.PageContext;
+import ch.ethz.seb.sebserver.gui.service.page.PageContext.AttributeKeys;
+import ch.ethz.seb.sebserver.gui.service.page.PageDefinition;
+import ch.ethz.seb.sebserver.gui.service.page.TemplateComposer;
+
+/** Default main page works with the DefaultPageLayout and the
+ * SEBMainPage template */
+@Lazy
+@Component
+public class DefaultMainPage implements PageDefinition {
+
+    @Override
+    public Class<? extends TemplateComposer> composer() {
+        return DefaultPageLayout.class;
+    }
+
+    @Override
+    public PageContext applyPageContext(final PageContext pageContext) {
+        return pageContext.withAttr(
+                AttributeKeys.ATTR_PAGE_TEMPLATE_COMPOSER_NAME,
+                SEBMainPage.class.getName());
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/impl/DefaultPageLayout.java

@@ -0,0 +1,275 @@
+/*
+ * Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page.impl;
+
+import org.eclipse.rap.rwt.RWT;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.layout.RowLayout;
+import org.eclipse.swt.widgets.Button;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Label;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Lazy;
+import org.springframework.stereotype.Component;
+
+import ch.ethz.seb.sebserver.gui.service.i18n.LocTextKey;
+import ch.ethz.seb.sebserver.gui.service.i18n.PolyglotPageService;
+import ch.ethz.seb.sebserver.gui.service.page.PageContext;
+import ch.ethz.seb.sebserver.gui.service.page.PageContext.AttributeKeys;
+import ch.ethz.seb.sebserver.gui.service.page.TemplateComposer;
+import ch.ethz.seb.sebserver.gui.service.remote.webservice.auth.AuthorizationContextHolder;
+import ch.ethz.seb.sebserver.gui.service.widget.WidgetFactory;
+
+@Lazy
+@Component
+public class DefaultPageLayout implements TemplateComposer {
+
+    private final WidgetFactory widgetFactory;
+    private final PolyglotPageService polyglotPageService;
+    private final AuthorizationContextHolder authorizationContextHolder;
+    private final String sebServerVersion;
+
+    public DefaultPageLayout(
+            final WidgetFactory widgetFactory,
+            final PolyglotPageService polyglotPageService,
+            final AuthorizationContextHolder authorizationContextHolder,
+            @Value("${sebserver.version}") final String sebServerVersion) {
+
+        this.widgetFactory = widgetFactory;
+        this.polyglotPageService = polyglotPageService;
+        this.authorizationContextHolder = authorizationContextHolder;
+        this.sebServerVersion = sebServerVersion;
+    }
+
+    @Override
+    public boolean validate(final PageContext pageContext) {
+        return pageContext.hasAttribute(AttributeKeys.ATTR_PAGE_TEMPLATE_COMPOSER_NAME);
+    }
+
+    @Override
+    public void compose(final PageContext pageContext) {
+
+        final GridLayout skeletonLayout = new GridLayout();
+        skeletonLayout.marginBottom = 0;
+        skeletonLayout.marginLeft = 0;
+        skeletonLayout.marginRight = 0;
+        skeletonLayout.marginTop = 0;
+        skeletonLayout.marginHeight = 0;
+        skeletonLayout.marginWidth = 0;
+        skeletonLayout.verticalSpacing = 0;
+        skeletonLayout.horizontalSpacing = 0;
+        pageContext.getParent().setLayout(skeletonLayout);
+
+        composeHeader(pageContext);
+        composeLogoBar(pageContext);
+        composeContent(pageContext);
+        composeFooter(pageContext);
+
+        this.polyglotPageService.setDefaultPageLocale(pageContext.getRoot());
+    }
+
+    private void composeHeader(final PageContext pageContext) {
+        final Composite header = new Composite(pageContext.getParent(), SWT.NONE);
+        final GridLayout gridLayout = new GridLayout();
+        gridLayout.marginRight = 50;
+        gridLayout.marginLeft = 50;
+        header.setLayout(gridLayout);
+        final GridData headerCell = new GridData(SWT.FILL, SWT.TOP, true, false);
+        headerCell.minimumHeight = 40;
+        headerCell.heightHint = 40;
+        header.setLayoutData(headerCell);
+        header.setData(RWT.CUSTOM_VARIANT, "header");
+
+        final Composite headerRight = new Composite(header, SWT.NONE);
+        headerRight.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, true, true));
+        final GridLayout headerRightGrid = new GridLayout(2, false);
+        headerRightGrid.marginHeight = 0;
+        headerRightGrid.marginWidth = 0;
+        headerRightGrid.horizontalSpacing = 20;
+        headerRight.setLayout(headerRightGrid);
+        headerRight.setData(RWT.CUSTOM_VARIANT, "header");
+
+        if (this.authorizationContextHolder.getAuthorizationContext().isLoggedIn()) {
+            final Label username = new Label(headerRight, SWT.NONE);
+            username.setData(RWT.CUSTOM_VARIANT, "header");
+            username.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, true, true));
+            username.setText(this.authorizationContextHolder
+                    .getAuthorizationContext()
+                    .getLoggedInUser()
+                    .get(pageContext::logoutOnError).username);
+
+            final Button logout = this.widgetFactory.buttonLocalized(headerRight, "sebserver.logout");
+            logout.setLayoutData(new GridData(SWT.RIGHT, SWT.FILL, true, true));
+            logout.setData(RWT.CUSTOM_VARIANT, "header");
+            logout.addListener(SWT.Selection, event -> {
+                final boolean logoutSuccessful = this.authorizationContextHolder
+                        .getAuthorizationContext()
+                        .logout();
+
+                if (!logoutSuccessful) {
+                    // TODO error handling
+                }
+
+                MainPageState.clear();
+
+                // forward to login page with success message
+                pageContext.forwardToLoginPage(
+                        pageContext.withAttr(AttributeKeys.LGOUT_SUCCESS, "true"));
+            });
+        }
+    }
+
+    private void composeLogoBar(final PageContext pageContext) {
+        final Composite logoBar = new Composite(pageContext.getParent(), SWT.NONE);
+        final GridData logoBarCell = new GridData(SWT.FILL, SWT.TOP, false, false);
+        logoBarCell.minimumHeight = 80;
+        logoBarCell.heightHint = 80;
+        logoBar.setLayoutData(logoBarCell);
+        logoBar.setData(RWT.CUSTOM_VARIANT, "logo");
+        final GridLayout logoBarLayout = new GridLayout(2, false);
+        logoBarLayout.horizontalSpacing = 0;
+        logoBarLayout.marginHeight = 0;
+        logoBar.setLayout(logoBarLayout);
+
+        final Composite logo = new Composite(logoBar, SWT.NONE);
+        final GridData logoCell = new GridData(SWT.LEFT, SWT.CENTER, true, true);
+        logoCell.minimumHeight = 80;
+        logoCell.heightHint = 80;
+        logoCell.minimumWidth = 400;
+        logoCell.horizontalIndent = 50;
+        logo.setLayoutData(logoCell);
+        logo.setData(RWT.CUSTOM_VARIANT, "bgLogo");
+
+        final Composite langSupport = new Composite(logoBar, SWT.NONE);
+        final GridData langSupportCell = new GridData(SWT.RIGHT, SWT.CENTER, false, false);
+        langSupportCell.heightHint = 20;
+        logoCell.horizontalIndent = 50;
+        langSupport.setLayoutData(langSupportCell);
+        langSupport.setData(RWT.CUSTOM_VARIANT, "logo");
+        final RowLayout rowLayout = new RowLayout(SWT.HORIZONTAL);
+        rowLayout.spacing = 7;
+        rowLayout.marginRight = 70;
+        langSupport.setLayout(rowLayout);
+
+        this.widgetFactory.createLanguageSelector(pageContext.copyOf(langSupport));
+//        for (final Locale locale : this.i18nSupport.supportedLanguages()) {
+//            final LanguageSelection languageSelection = new LanguageSelection(langSupport, locale);
+//            languageSelection.updateLocale(this.i18nSupport);
+//            languageSelection.addListener(SWT.MouseDown, event -> {
+//                this.polyglotPageService.setPageLocale(pageContext.root, languageSelection.locale);
+//
+//            });
+//        }
+    }
+
+    private void composeContent(final PageContext pageContext) {
+        final Composite contentBackground = new Composite(pageContext.getParent(), SWT.NONE);
+        contentBackground.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
+        contentBackground.setData(RWT.CUSTOM_VARIANT, "bgContent");
+        final GridLayout innerGrid = new GridLayout();
+        innerGrid.marginLeft = 50;
+        innerGrid.marginRight = 50;
+        innerGrid.marginHeight = 0;
+        innerGrid.marginWidth = 0;
+
+        contentBackground.setLayout(innerGrid);
+
+        final Composite content = new Composite(contentBackground, SWT.NONE);
+        content.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
+        content.setData(RWT.CUSTOM_VARIANT, "content");
+        final GridLayout contentGrid = new GridLayout();
+        contentGrid.marginHeight = 0;
+        contentGrid.marginWidth = 0;
+        content.setLayout(contentGrid);
+
+        final Composite contentInner = new Composite(content, SWT.NONE);
+        contentInner.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER, true, true));
+        final GridLayout gridLayout = new GridLayout();
+        gridLayout.marginHeight = 0;
+        gridLayout.marginWidth = 0;
+        contentInner.setLayout(gridLayout);
+
+        final String contentComposerName = pageContext.getAttribute(
+                AttributeKeys.ATTR_PAGE_TEMPLATE_COMPOSER_NAME);
+        pageContext.composerService().compose(
+                contentComposerName,
+                pageContext.copyOf(contentInner));
+    }
+
+    private void composeFooter(final PageContext pageContext) {
+        final Composite footerBar = new Composite(pageContext.getParent(), SWT.NONE);
+        final GridData footerCell = new GridData(SWT.FILL, SWT.BOTTOM, false, false);
+        footerCell.minimumHeight = 30;
+        footerCell.heightHint = 30;
+        footerBar.setLayoutData(footerCell);
+        footerBar.setData(RWT.CUSTOM_VARIANT, "bgFooter");
+        final GridLayout innerBarGrid = new GridLayout();
+        innerBarGrid.marginHeight = 0;
+        innerBarGrid.marginWidth = 0;
+        innerBarGrid.marginLeft = 50;
+        innerBarGrid.marginRight = 50;
+        footerBar.setLayout(innerBarGrid);
+
+        final Composite footer = new Composite(footerBar, SWT.NONE);
+        final GridData gridData = new GridData(SWT.FILL, SWT.FILL, true, true);
+        footer.setLayoutData(gridData);
+        final GridLayout footerGrid = new GridLayout(2, false);
+        footerGrid.marginHeight = 0;
+        footerGrid.marginWidth = 0;
+        footerGrid.horizontalSpacing = 0;
+        footer.setLayout(footerGrid);
+        footer.setData(RWT.CUSTOM_VARIANT, "footer");
+
+        final Composite footerLeft = new Composite(footer, SWT.NONE);
+        footerLeft.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, true, true));
+        footerLeft.setData(RWT.CUSTOM_VARIANT, "footer");
+        RowLayout rowLayout = new RowLayout(SWT.HORIZONTAL);
+        rowLayout.marginLeft = 20;
+        rowLayout.spacing = 20;
+        footerLeft.setLayout(rowLayout);
+
+        final Composite footerRight = new Composite(footer, SWT.NONE);
+        footerRight.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, true, true));
+        footerRight.setData(RWT.CUSTOM_VARIANT, "footer");
+        rowLayout = new RowLayout(SWT.HORIZONTAL);
+        rowLayout.marginRight = 20;
+        footerRight.setLayout(rowLayout);
+
+        this.widgetFactory.labelLocalized(footerLeft, "footer", new LocTextKey("sebserver.overall.imprint"));
+        this.widgetFactory.labelLocalized(footerLeft, "footer", new LocTextKey("sebserver.overall.about"));
+        this.widgetFactory.labelLocalized(
+                footerRight,
+                "footer",
+                new LocTextKey("sebserver.overall.version", this.sebServerVersion));
+    }
+
+//    private final class LanguageSelection extends Label implements Polyglot {
+//
+//        private static final long serialVersionUID = 8110167162843383940L;
+//        private final Locale locale;
+//
+//        public LanguageSelection(final Composite parent, final Locale locale) {
+//            super(parent, SWT.NONE);
+//            this.locale = locale;
+//            super.setData(RWT.CUSTOM_VARIANT, "header");
+//            super.setText("|  " + locale.getLanguage().toUpperCase());
+//        }
+//
+//        @Override
+//        public void updateLocale(final I18nSupport i18nSupport) {
+//            super.setVisible(
+//                    !i18nSupport.getCurrentLocale()
+//                            .getLanguage()
+//                            .equals(this.locale.getLanguage()));
+//        }
+//    }
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/impl/MainPageState.java

@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2019 ETH Zürich, Educational Development and Technology (LET)
+ * 
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page.impl;
+
+import javax.servlet.http.HttpSession;
+
+import org.eclipse.rap.rwt.RWT;
+
+import ch.ethz.seb.sebserver.gui.service.page.activity.ActivitySelection;
+import ch.ethz.seb.sebserver.gui.service.page.activity.ActivitySelection.Activity;
+
+public final class MainPageState {
+
+    public ActivitySelection activitySelection = Activity.NONE.createSelection();
+
+    private MainPageState() {
+    }
+
+    public static MainPageState get() {
+        try {
+            final HttpSession httpSession = RWT
+                    .getUISession()
+                    .getHttpSession();
+
+            MainPageState mainPageState = (MainPageState) httpSession.getAttribute(SEBMainPage.ATTR_MAIN_PAGE_STATE);
+            if (mainPageState == null) {
+                mainPageState = new MainPageState();
+                httpSession.setAttribute(SEBMainPage.ATTR_MAIN_PAGE_STATE, mainPageState);
+            }
+
+            return mainPageState;
+        } catch (final Exception e) {
+            SEBMainPage.log.error("Unexpected error while trying to get MainPageState from user-session");
+        }
+
+        return null;
+    }
+
+    public static void clear() {
+        final MainPageState mainPageState = get();
+        mainPageState.activitySelection = Activity.NONE.createSelection();
+    }
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/impl/PageContextImpl.java

@@ -0,0 +1,275 @@
+/*
+ * Copyright (c) 2019 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page.impl;
+
+import java.util.ArrayList;
+import java.util.Comparator;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.eclipse.rap.rwt.widgets.DialogCallback;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.MessageBox;
+import org.eclipse.swt.widgets.Shell;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import ch.ethz.seb.sebserver.gbl.api.APIMessage;
+import ch.ethz.seb.sebserver.gbl.api.APIMessageError;
+import ch.ethz.seb.sebserver.gbl.util.Utils;
+import ch.ethz.seb.sebserver.gui.service.i18n.I18nSupport;
+import ch.ethz.seb.sebserver.gui.service.page.ComposerService;
+import ch.ethz.seb.sebserver.gui.service.page.PageContext;
+import ch.ethz.seb.sebserver.gui.service.page.PageDefinition;
+import ch.ethz.seb.sebserver.gui.service.page.PageEventListener;
+import ch.ethz.seb.sebserver.gui.service.page.event.PageEvent;
+import ch.ethz.seb.sebserver.gui.service.widget.Message;
+
+public class PageContextImpl implements PageContext {
+
+    private static final Logger log = LoggerFactory.getLogger(PageContextImpl.class);
+
+    private final I18nSupport i18nSupport;
+    private final ComposerService composerService;
+    private final Composite root;
+    private final Composite parent;
+    private final Map<String, String> attributes;
+
+    PageContextImpl(
+            final I18nSupport i18nSupport,
+            final ComposerService composerService,
+            final Composite root,
+            final Composite parent,
+            final Map<String, String> attributes) {
+
+        this.i18nSupport = i18nSupport;
+        this.composerService = composerService;
+        this.root = root;
+        this.parent = parent;
+        this.attributes = Utils.immutableMapOf(attributes);
+    }
+
+    @Override
+    public Shell getShell() {
+        if (this.root == null) {
+            return null;
+        }
+
+        return this.root.getShell();
+    }
+
+    @Override
+    public ComposerService composerService() {
+        return this.composerService;
+    }
+
+    @Override
+    public Composite getRoot() {
+        return this.root;
+    }
+
+    @Override
+    public Composite getParent() {
+        return this.parent;
+    }
+
+    @Override
+    public PageContext copyOf(final Composite parent) {
+        return new PageContextImpl(
+                this.i18nSupport,
+                this.composerService,
+                this.root,
+                parent,
+                this.attributes);
+    }
+
+    @Override
+    public PageContext copyOfAttributes(final PageContext otherContext) {
+        final Map<String, String> attrs = new HashMap<>();
+        attrs.putAll(this.attributes);
+        attrs.putAll(((PageContextImpl) otherContext).attributes);
+        return new PageContextImpl(
+                this.i18nSupport,
+                this.composerService,
+                this.root,
+                this.parent,
+                attrs);
+    }
+
+    @Override
+    public PageContext withAttr(final String key, final String value) {
+        final Map<String, String> attrs = new HashMap<>();
+        attrs.putAll(this.attributes);
+        attrs.put(key, value);
+        return new PageContextImpl(
+                this.i18nSupport,
+                this.composerService,
+                this.root,
+                this.parent, attrs);
+    }
+
+    @Override
+    public String getAttribute(final String name) {
+        return this.attributes.get(name);
+    }
+
+    @Override
+    public String getAttribute(final String name, final String def) {
+        if (this.attributes.containsKey(name)) {
+            return this.attributes.get(name);
+        } else {
+            return def;
+        }
+    }
+
+    @Override
+    public boolean hasAttribute(final String name) {
+        return this.attributes.containsKey(name);
+    }
+
+    @Override
+    @SuppressWarnings("unchecked")
+    public <T extends PageEvent> void publishPageEvent(final T event) {
+        final Class<? extends PageEvent> typeClass = event.getClass();
+        final List<PageEventListener<T>> listeners = new ArrayList<>();
+        ComposerService.traversePageTree(
+                this.root,
+                c -> {
+                    final PageEventListener<?> listener =
+                            (PageEventListener<?>) c.getData(PageEventListener.LISTENER_ATTRIBUTE_KEY);
+                    return listener != null && listener.match(typeClass);
+                },
+                c -> listeners.add(((PageEventListener<T>) c.getData(PageEventListener.LISTENER_ATTRIBUTE_KEY))));
+
+        if (listeners.isEmpty()) {
+            return;
+        }
+
+        listeners.stream()
+                .sorted(LISTENER_COMPARATOR)
+                .forEach(listener -> listener.notify(event));
+    }
+
+    @Override
+    @SuppressWarnings("serial")
+    public void applyConfirmDialog(final String confirmMessage, final Runnable onOK) {
+        final Message messageBox = new Message(
+                this.root.getShell(),
+                this.i18nSupport.getText("org.sebserver.dialog.confirm.title"),
+                this.i18nSupport.getText(confirmMessage),
+                SWT.OK | SWT.CANCEL);
+        messageBox.open(new DialogCallback() {
+            @Override
+            public void dialogClosed(final int returnCode) {
+                if (returnCode == SWT.OK) {
+                    try {
+                        onOK.run();
+                    } catch (final Throwable t) {
+                        log.error(
+                                "Unexpected on confirm callback execution. This should not happen, plase secure the given onOK Runnable",
+                                t);
+                    }
+                }
+            }
+        });
+    }
+
+//    public void applyValidationErrorDialog(final Collection<FieldValidationError> validationErrors) {
+//        final Message messageBox = new Message(
+//                this.root.getShell(),
+//                this.i18nSupport.getText("org.sebserver.dialog.validationErrors.title"),
+//                this.i18nSupport.getText(confirmMessage),
+//                SWT.OK);
+//    }
+
+    @Override
+    public void forwardToPage(
+            final PageDefinition pageDefinition,
+            final PageContext pageContext) {
+
+        this.composerService.compose(
+                pageDefinition.composer(),
+                pageDefinition.applyPageContext(pageContext.copyOf(pageContext.getRoot())));
+    }
+
+    @Override
+    public void forwardToMainPage(final PageContext pageContext) {
+        forwardToPage(this.composerService.mainPage(), pageContext);
+    }
+
+    @Override
+    public void forwardToLoginPage(final PageContext pageContext) {
+        forwardToPage(this.composerService.loginPage(), pageContext);
+    }
+
+    @Override
+    public void notifyError(final String errorMessage, final Throwable error) {
+        if (error instanceof APIMessageError) {
+            final List<APIMessage> errorMessages = ((APIMessageError) error).getErrorMessages();
+            final MessageBox messageBox = new Message(
+                    getShell(),
+                    this.i18nSupport.getText("sebserver.error.unexpected"),
+                    APIMessage.toHTML(errorMessages),
+                    SWT.ERROR);
+            messageBox.setMarkupEnabled(true);
+            messageBox.open(null);
+            return;
+        }
+
+        final MessageBox messageBox = new Message(
+                getShell(),
+                this.i18nSupport.getText("sebserver.error.unexpected"),
+                error.toString(),
+                SWT.ERROR);
+        messageBox.open(null);
+    }
+
+    @Override
+    public void notifyError(final Throwable error) {
+        notifyError(error.getMessage(), error);
+    }
+
+    @Override
+    public <T> T logoutOnError(final Throwable error) {
+        // just to be sure we leave a clean and proper authorizationContext
+        try {
+            ((ComposerServiceImpl) this.composerService).authorizationContextHolder
+                    .getAuthorizationContext()
+                    .logout();
+        } catch (final Exception e) {
+            log.info("Cleanup logout failed: {}", e.getMessage());
+        }
+
+        MainPageState.clear();
+        forwardToLoginPage(this.withAttr(
+                AttributeKeys.AUTHORIZATION_FAILURE,
+                error.getMessage()));
+
+        return null;
+    }
+
+    @Override
+    public String toString() {
+        return "PageContextImpl [root=" + this.root + ", parent=" + this.parent + ", attributes=" + this.attributes
+                + "]";
+    }
+
+    private static final Comparator<PageEventListener<?>> LISTENER_COMPARATOR =
+            new Comparator<>() {
+                @Override
+                public int compare(final PageEventListener<?> o1, final PageEventListener<?> o2) {
+                    final int x = o1.priority();
+                    final int y = o2.priority();
+                    return (x < y) ? -1 : ((x == y) ? 0 : 1);
+                }
+            };
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/impl/SEBLogin.java

@@ -0,0 +1,147 @@
+/*
+ * Copyright (c) 2019 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page.impl;
+
+import org.eclipse.rap.rwt.RWT;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Button;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Label;
+import org.eclipse.swt.widgets.MessageBox;
+import org.eclipse.swt.widgets.Text;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.context.annotation.Lazy;
+import org.springframework.stereotype.Component;
+
+import ch.ethz.seb.sebserver.gbl.profile.GuiProfile;
+import ch.ethz.seb.sebserver.gui.service.i18n.I18nSupport;
+import ch.ethz.seb.sebserver.gui.service.page.PageContext;
+import ch.ethz.seb.sebserver.gui.service.page.PageContext.AttributeKeys;
+import ch.ethz.seb.sebserver.gui.service.page.TemplateComposer;
+import ch.ethz.seb.sebserver.gui.service.remote.webservice.auth.AuthorizationContextHolder;
+import ch.ethz.seb.sebserver.gui.service.remote.webservice.auth.SEBServerAuthorizationContext;
+import ch.ethz.seb.sebserver.gui.service.widget.Message;
+import ch.ethz.seb.sebserver.gui.service.widget.WidgetFactory;
+
+@Lazy
+@Component
+@GuiProfile
+public class SEBLogin implements TemplateComposer {
+
+    private static final Logger log = LoggerFactory.getLogger(SEBLogin.class);
+
+    private final AuthorizationContextHolder authorizationContextHolder;
+    private final WidgetFactory widgetFactory;
+    private final I18nSupport i18nSupport;
+
+    public SEBLogin(
+            final AuthorizationContextHolder authorizationContextHolder,
+            final WidgetFactory widgetFactory,
+            final I18nSupport i18nSupport) {
+
+        this.authorizationContextHolder = authorizationContextHolder;
+        this.widgetFactory = widgetFactory;
+        this.i18nSupport = i18nSupport;
+    }
+
+    @Override
+    public void compose(final PageContext pageContext) {
+        final Composite parent = pageContext.getParent();
+
+        if (pageContext.hasAttribute((AttributeKeys.LGOUT_SUCCESS))) {
+            final MessageBox logoutSuccess = new Message(
+                    pageContext.getShell(),
+                    this.i18nSupport.getText("org.sebserver.logout"),
+                    this.i18nSupport.getText("org.sebserver.logout.success.message"),
+                    SWT.ICON_INFORMATION);
+            logoutSuccess.open(null);
+        }
+
+        final Composite loginGroup = new Composite(parent, SWT.NONE);
+        final GridLayout rowLayout = new GridLayout();
+        rowLayout.marginWidth = 20;
+        rowLayout.marginRight = 100;
+        loginGroup.setLayout(rowLayout);
+        loginGroup.setData(RWT.CUSTOM_VARIANT, "login");
+
+        final Label name = this.widgetFactory.labelLocalized(loginGroup, "sebserver.login.username");
+        name.setLayoutData(new GridData(300, -1));
+        name.setAlignment(SWT.BOTTOM);
+        final Text loginName = new Text(loginGroup, SWT.LEFT | SWT.BORDER);
+        loginName.setLayoutData(new GridData(SWT.FILL, SWT.TOP, false, false));
+        GridData gridData = new GridData(SWT.FILL, SWT.TOP, false, false);
+        gridData.verticalIndent = 10;
+        final Label pwd = this.widgetFactory.labelLocalized(loginGroup, "sebserver.login.pwd");
+        pwd.setLayoutData(gridData);
+        final Text loginPassword = new Text(loginGroup, SWT.LEFT | SWT.PASSWORD | SWT.BORDER);
+        loginPassword.setLayoutData(new GridData(SWT.FILL, SWT.TOP, false, false));
+
+        final Button button = this.widgetFactory.buttonLocalized(loginGroup, "sebserver.login.login");
+        gridData = new GridData(SWT.LEFT, SWT.TOP, false, false);
+        gridData.verticalIndent = 10;
+        button.setLayoutData(gridData);
+
+        final SEBServerAuthorizationContext authorizationContext = this.authorizationContextHolder
+                .getAuthorizationContext(RWT.getUISession().getHttpSession());
+
+        button.addListener(SWT.Selection, event -> {
+            final String username = loginName.getText();
+            try {
+
+                final boolean loggedIn = authorizationContext.login(
+                        username,
+                        loginPassword.getText());
+
+                if (loggedIn) {
+                    // Set users locale on page after successful login
+                    this.i18nSupport.setSessionLocale(
+                            authorizationContext
+                                    .getLoggedInUser()
+                                    .get(pageContext::logoutOnError).locale);
+
+                    pageContext.forwardToMainPage(pageContext);
+
+                } else {
+                    loginError(pageContext, "sebserver.login.failed.message");
+                }
+            } catch (final Exception e) {
+                log.error("Unexpected error while trying to login with user: {}", username, e);
+                loginError(pageContext, "Unexpected Error. Please call an Administrator");
+            }
+        });
+        loginName.addListener(SWT.KeyDown, event -> {
+            if (event.character == '\n' || event.character == '\r') {
+                loginPassword.setFocus();
+            }
+        });
+        loginPassword.addListener(SWT.KeyDown, event -> {
+            if (event.character == '\n' || event.character == '\r') {
+                button.setFocus();
+            }
+        });
+
+    }
+
+    private void loginError(
+            final PageContext pageContext,
+            final String message) {
+
+        final MessageBox error = new Message(
+                pageContext.getShell(),
+                this.i18nSupport.getText("sebserver.login.failed.title"),
+                this.i18nSupport.getText(message, message),
+                SWT.ERROR);
+        error.open(null);
+        pageContext.logoutOnError(new RuntimeException(message));
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/impl/SEBMainPage.java

@@ -0,0 +1,166 @@
+/*
+ * Copyright (c) 2019 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page.impl;
+
+import org.eclipse.rap.rwt.RWT;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.custom.SashForm;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Label;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.context.annotation.Lazy;
+import org.springframework.stereotype.Component;
+
+import ch.ethz.seb.sebserver.gbl.profile.GuiProfile;
+import ch.ethz.seb.sebserver.gui.service.i18n.LocTextKey;
+import ch.ethz.seb.sebserver.gui.service.page.PageContext;
+import ch.ethz.seb.sebserver.gui.service.page.PageEventListener;
+import ch.ethz.seb.sebserver.gui.service.page.TemplateComposer;
+import ch.ethz.seb.sebserver.gui.service.page.activity.ActivitiesPane;
+import ch.ethz.seb.sebserver.gui.service.page.event.ActivitySelectionEvent;
+import ch.ethz.seb.sebserver.gui.service.page.event.ActivitySelectionListener;
+import ch.ethz.seb.sebserver.gui.service.widget.WidgetFactory;
+import ch.ethz.seb.sebserver.gui.service.widget.WidgetFactory.IconButtonType;
+
+@Lazy
+@Component
+@GuiProfile
+public class SEBMainPage implements TemplateComposer {
+
+    static final Logger log = LoggerFactory.getLogger(SEBMainPage.class);
+
+    public static final String ATTR_MAIN_PAGE_STATE = "MAIN_PAGE_STATE";
+
+    private static final int ACTIVITY_PANE_WEIGHT = 20;
+    private static final int CONTENT_PANE_WEIGHT = 65;
+    private static final int ACTION_PANE_WEIGHT = 15;
+    private static final int[] DEFAULT_SASH_WEIGHTS = new int[] {
+            ACTIVITY_PANE_WEIGHT,
+            CONTENT_PANE_WEIGHT,
+            ACTION_PANE_WEIGHT
+    };
+    private static final int[] OPENED_SASH_WEIGHTS = new int[] { 0, 100, 0 };
+
+    private final WidgetFactory widgetFactory;
+
+    public SEBMainPage(final WidgetFactory widgetFactory) {
+        this.widgetFactory = widgetFactory;
+    }
+
+    @Override
+    public void compose(final PageContext pageContext) {
+        MainPageState.clear();
+
+        final Composite parent = pageContext.getParent();
+        parent.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
+
+        final SashForm mainSash = new SashForm(parent, SWT.HORIZONTAL);
+        final GridLayout gridLayout = new GridLayout();
+
+        mainSash.setLayout(gridLayout);
+        mainSash.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
+
+        final Composite nav = new Composite(mainSash, SWT.NONE);
+        nav.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
+        final GridLayout navLayout = new GridLayout();
+        navLayout.marginHeight = 20;
+        navLayout.marginWidth = 0;
+        nav.setLayout(navLayout);
+
+        final Composite content = new Composite(mainSash, SWT.NONE);
+        content.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
+        final GridLayout contentOuterlayout = new GridLayout();
+        contentOuterlayout.marginHeight = 0;
+        contentOuterlayout.marginWidth = 0;
+        content.setLayout(contentOuterlayout);
+
+        final Label toggleView = this.widgetFactory.imageButton(
+                IconButtonType.MAXIMIZE,
+                content,
+                new LocTextKey("sebserver.mainpage.maximize.tooltip"),
+                event -> {
+                    final Label ib = (Label) event.widget;
+                    if ((Boolean) ib.getData("fullScreen")) {
+                        mainSash.setWeights(DEFAULT_SASH_WEIGHTS);
+                        ib.setData("fullScreen", false);
+                        ib.setImage(WidgetFactory.IconButtonType.MAXIMIZE.getImage(ib.getDisplay()));
+                        this.widgetFactory.injectI18n(
+                                ib,
+                                null,
+                                new LocTextKey("sebserver.mainpage.maximize.tooltip"));
+                    } else {
+                        mainSash.setWeights(OPENED_SASH_WEIGHTS);
+                        ib.setData("fullScreen", true);
+                        ib.setImage(WidgetFactory.IconButtonType.MINIMIZE.getImage(ib.getDisplay()));
+                        this.widgetFactory.injectI18n(
+                                ib,
+                                null,
+                                new LocTextKey("sebserver.mainpage.minimize.tooltip"));
+                    }
+                });
+        final GridData gridData = new GridData(SWT.RIGHT, SWT.TOP, true, false);
+        toggleView.setLayoutData(gridData);
+        toggleView.setData("fullScreen", false);
+
+        final Composite contentObjects = new Composite(content, SWT.NONE);
+        contentObjects.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
+        final GridLayout contentObjectslayout = new GridLayout();
+        contentObjectslayout.marginHeight = 0;
+        contentObjectslayout.marginWidth = 0;
+        contentObjects.setLayout(contentObjectslayout);
+        contentObjects.setData(PageEventListener.LISTENER_ATTRIBUTE_KEY,
+                new ActivitySelectionListener() {
+                    @Override
+                    public int priority() {
+                        return 2;
+                    }
+
+                    @Override
+                    public void notify(final ActivitySelectionEvent event) {
+                        pageContext.composerService().compose(
+                                event.selection.activity.contentPaneComposer,
+                                pageContext.copyOf(contentObjects).withAttr(
+                                        event.selection.activity.objectIdentifierAttribute,
+                                        event.selection.getObjectIdentifier()));
+                    }
+                });
+
+        final Composite actionPane = new Composite(mainSash, SWT.NONE);
+        actionPane.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
+        final GridLayout actionPaneGrid = new GridLayout();
+        actionPane.setLayout(actionPaneGrid);
+        actionPane.setData(RWT.CUSTOM_VARIANT, "actionPane");
+        actionPane.setData(PageEventListener.LISTENER_ATTRIBUTE_KEY,
+                new ActivitySelectionListener() {
+                    @Override
+                    public int priority() {
+                        return 1;
+                    }
+
+                    @Override
+                    public void notify(final ActivitySelectionEvent event) {
+                        pageContext.composerService().compose(
+                                event.selection.activity.actionPaneComposer,
+                                pageContext.copyOf(actionPane).withAttr(
+                                        event.selection.activity.objectIdentifierAttribute,
+                                        event.selection.getObjectIdentifier()));
+                    }
+                });
+
+        pageContext.composerService().compose(
+                ActivitiesPane.class,
+                pageContext.copyOf(nav));
+
+        mainSash.setWeights(DEFAULT_SASH_WEIGHTS);
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/page/impl/TODOTemplate.java

@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.page.impl;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.widgets.Label;
+import org.springframework.context.annotation.Lazy;
+import org.springframework.stereotype.Component;
+
+import ch.ethz.seb.sebserver.gui.service.page.PageContext;
+import ch.ethz.seb.sebserver.gui.service.page.TemplateComposer;
+
+@Lazy
+@Component
+public class TODOTemplate implements TemplateComposer {
+
+    @Override
+    public void compose(final PageContext composerCtx) {
+
+        final Label tree = new Label(composerCtx.getParent(), SWT.NONE);
+        tree.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
+        tree.setText("[TODO]");
+
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/remote/webservice/WebserviceConnectionConfig.java

@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2019 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.remote.webservice;
+
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.net.HttpURLConnection;
+import java.security.KeyManagementException;
+import java.security.KeyStoreException;
+import java.security.NoSuchAlgorithmException;
+import java.security.cert.CertificateException;
+
+import javax.net.ssl.SSLContext;
+
+import org.apache.http.client.HttpClient;
+import org.apache.http.impl.client.HttpClients;
+import org.apache.http.ssl.SSLContextBuilder;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.core.env.Environment;
+import org.springframework.http.client.ClientHttpRequestFactory;
+import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
+import org.springframework.http.client.SimpleClientHttpRequestFactory;
+import org.springframework.util.ResourceUtils;
+
+import ch.ethz.seb.sebserver.gbl.profile.DevGuiProfile;
+import ch.ethz.seb.sebserver.gbl.profile.GuiProfile;
+import ch.ethz.seb.sebserver.gbl.profile.ProdGuiProfile;
+
+@Configuration
+@GuiProfile
+public class WebserviceConnectionConfig {
+
+    /** A ClientHttpRequestFactory for development profile with no TSL SSL protocol and
+     * not following redirects on redirect responses.
+     *
+     * @return ClientHttpRequestFactory bean for development profiles */
+    @Bean
+    @DevGuiProfile
+    public ClientHttpRequestFactory clientHttpRequestFactory() {
+        return new SimpleClientHttpRequestFactory() {
+
+            @Override
+            protected void prepareConnection(final HttpURLConnection connection, final String httpMethod)
+                    throws IOException {
+                super.prepareConnection(connection, httpMethod);
+                connection.setInstanceFollowRedirects(false);
+            }
+        };
+    }
+
+    /** A ClientHttpRequestFactory used in production with TSL SSL configuration.
+     *
+     * NOTE:
+     * environment property: sebserver.gui.truststore.pwd is expected to have the correct truststore password set
+     * environment property: sebserver.gui.truststore.type is expected to set to the correct type of truststore
+     * truststore.jks is expected to be on the classpath containing all trusted certificates for request
+     * to SSL secured SEB Server webservice
+     *
+     * @return ClientHttpRequestFactory with TLS / SSL configuration
+     * @throws IOException
+     * @throws FileNotFoundException
+     * @throws CertificateException
+     * @throws KeyStoreException
+     * @throws NoSuchAlgorithmException
+     * @throws KeyManagementException */
+    @Bean
+    @ProdGuiProfile
+    public ClientHttpRequestFactory clientHttpRequestFactoryTLS(final Environment env) throws KeyManagementException,
+            NoSuchAlgorithmException, KeyStoreException, CertificateException, FileNotFoundException, IOException {
+
+        final char[] password = env
+                .getProperty("sebserver.gui.truststore.pwd")
+                .toCharArray();
+
+        final SSLContext sslContext = SSLContextBuilder
+                .create()
+                .loadTrustMaterial(ResourceUtils.getFile(
+                        "classpath:truststore.jks"),
+                        password)
+                .build();
+
+        final HttpClient client = HttpClients.custom()
+                .setSSLContext(sslContext)
+                .build();
+
+        return new HttpComponentsClientHttpRequestFactory(client);
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/remote/webservice/api/RestCall.java

@@ -28,8 +28,8 @@ import org.springframework.web.client.RestClientResponseException;
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.core.type.TypeReference;
 
-import ch.ethz.seb.sebserver.gbl.JSONMapper;
-import ch.ethz.seb.sebserver.gbl.model.APIMessage;
+import ch.ethz.seb.sebserver.gbl.api.APIMessage;
+import ch.ethz.seb.sebserver.gbl.api.JSONMapper;
 import ch.ethz.seb.sebserver.gbl.model.Page;
 import ch.ethz.seb.sebserver.gbl.util.Result;
 import ch.ethz.seb.sebserver.webservice.servicelayer.PaginationService.SortOrder;
@@ -58,9 +58,10 @@ public abstract class RestCall<T> {
 
     }
 
-    void init(final RestService restService, final JSONMapper jsonMapper) {
+    RestCall<T> init(final RestService restService, final JSONMapper jsonMapper) {
         this.restService = restService;
         this.jsonMapper = jsonMapper;
+        return this;
     }
 
     protected Result<T> exchange(final RestCallBuilder builder) {
@@ -107,6 +108,10 @@ public abstract class RestCall<T> {
         }
     }
 
+    public RestCallBuilder newBuilder() {
+        return new RestCallBuilder();
+    }
+
     public final class RestCallBuilder {
 
         private final HttpHeaders httpHeaders = new HttpHeaders();
@@ -117,7 +122,7 @@ public abstract class RestCall<T> {
         RestCallBuilder() {
             this.httpHeaders.set(
                     HttpHeaders.CONTENT_TYPE,
-                    RestCall.this.contentType.getType());
+                    RestCall.this.contentType.toString());
         }
 
         public RestCallBuilder withHeaders(final HttpHeaders headers) {
@@ -165,7 +170,7 @@ public abstract class RestCall<T> {
             return this;
         }
 
-        public final Result<T> exchange() {
+        public final Result<T> call() {
             return RestCall.this.exchange(this);
         }
 

src/main/java/ch/ethz/seb/sebserver/gui/service/remote/webservice/api/RestCallError.java

@@ -11,9 +11,10 @@ package ch.ethz.seb.sebserver.gui.service.remote.webservice.api;
 import java.util.ArrayList;
 import java.util.List;
 
-import ch.ethz.seb.sebserver.gbl.model.APIMessage;
+import ch.ethz.seb.sebserver.gbl.api.APIMessage;
+import ch.ethz.seb.sebserver.gbl.api.APIMessageError;
 
-public class RestCallError extends RuntimeException {
+public class RestCallError extends RuntimeException implements APIMessageError {
 
     private static final long serialVersionUID = -5201349295667957490L;
 
@@ -27,6 +28,7 @@ public class RestCallError extends RuntimeException {
         super(message);
     }
 
+    @Override
     public List<APIMessage> getErrorMessages() {
         return this.errors;
     }

src/main/java/ch/ethz/seb/sebserver/gui/service/remote/webservice/api/RestService.java

@@ -8,6 +8,10 @@
 
 package ch.ethz.seb.sebserver.gui.service.remote.webservice.api;
 
+import java.util.Collection;
+import java.util.Map;
+import java.util.stream.Collectors;
+
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.context.annotation.Lazy;
@@ -15,10 +19,10 @@ import org.springframework.stereotype.Service;
 import org.springframework.web.client.RestTemplate;
 import org.springframework.web.util.UriComponentsBuilder;
 
-import ch.ethz.seb.sebserver.gbl.JSONMapper;
+import ch.ethz.seb.sebserver.gbl.api.JSONMapper;
 import ch.ethz.seb.sebserver.gbl.profile.GuiProfile;
 import ch.ethz.seb.sebserver.gui.service.remote.webservice.auth.AuthorizationContextHolder;
-import ch.ethz.seb.sebserver.gui.service.remote.webservice.auth.WebserviceURIBuilderSupplier;
+import ch.ethz.seb.sebserver.gui.service.remote.webservice.auth.WebserviceURIService;
 
 @Lazy
 @Service
@@ -28,17 +32,23 @@ public class RestService {
     private static final Logger log = LoggerFactory.getLogger(RestService.class);
 
     private final AuthorizationContextHolder authorizationContextHolder;
-    private final WebserviceURIBuilderSupplier webserviceURIBuilderSupplier;
-    private final JSONMapper jsonMapper;
+    private final WebserviceURIService webserviceURIBuilderSupplier;
+    private final Map<String, RestCall<?>> calls;
 
     public RestService(
             final AuthorizationContextHolder authorizationContextHolder,
-            final WebserviceURIBuilderSupplier webserviceURIBuilderSupplier,
-            final JSONMapper jsonMapper) {
+            final WebserviceURIService webserviceURIBuilderSupplier,
+            final JSONMapper jsonMapper,
+            final Collection<RestCall<?>> calls) {
 
         this.authorizationContextHolder = authorizationContextHolder;
         this.webserviceURIBuilderSupplier = webserviceURIBuilderSupplier;
-        this.jsonMapper = jsonMapper;
+
+        this.calls = calls
+                .stream()
+                .collect(Collectors.toMap(
+                        call -> call.getClass().getName(),
+                        call -> call.init(this, jsonMapper)));
     }
 
     public RestTemplate getWebserviceAPIRestTemplate() {
@@ -51,15 +61,19 @@ public class RestService {
         return this.webserviceURIBuilderSupplier.getBuilder();
     }
 
+    @SuppressWarnings("unchecked")
     public <T> RestCall<T> getRestCall(final Class<? extends RestCall<T>> type) {
-        try {
-            final RestCall<T> restCall = type.getDeclaredConstructor().newInstance();
-            restCall.init(this, this.jsonMapper);
-            return restCall;
-        } catch (final Exception e) {
-            log.error("Error while trying to create RestCall of type: {}", type, e);
-            return new BuildErrorCall<>(e);
+        return (RestCall<T>) this.calls.get(type.getName());
+    }
+
+    public <T> RestCall<T>.RestCallBuilder getBuilder(final Class<? extends RestCall<T>> type) {
+        @SuppressWarnings("unchecked")
+        final RestCall<T> restCall = (RestCall<T>) this.calls.get(type.getName());
+        if (restCall == null) {
+            return null;
         }
+
+        return restCall.newBuilder();
     }
 
 }

src/main/java/ch/ethz/seb/sebserver/gui/service/remote/webservice/api/institution/GetInstitutionNames.java

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2019 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.remote.webservice.api.institution;
+
+import java.util.List;
+
+import org.springframework.context.annotation.Lazy;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.MediaType;
+import org.springframework.stereotype.Component;
+
+import com.fasterxml.jackson.core.type.TypeReference;
+
+import ch.ethz.seb.sebserver.gbl.api.SEBServerRestEndpoints;
+import ch.ethz.seb.sebserver.gbl.model.EntityName;
+import ch.ethz.seb.sebserver.gbl.profile.GuiProfile;
+import ch.ethz.seb.sebserver.gui.service.remote.webservice.api.RestCall;
+
+@Lazy
+@Component
+@GuiProfile
+public class GetInstitutionNames extends RestCall<List<EntityName>> {
+
+    protected GetInstitutionNames() {
+        super(
+                new TypeReference<List<EntityName>>() {
+                },
+                HttpMethod.GET,
+                MediaType.APPLICATION_FORM_URLENCODED,
+                SEBServerRestEndpoints.ENDPOINT_INSTITUTION + "/names");
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/remote/webservice/auth/CurrentUser.java

@@ -34,7 +34,9 @@ public class CurrentUser {
 
     public UserInfo get() {
         if (isAvailable()) {
-            return this.authContext.getLoggedInUser();
+            return this.authContext
+                    .getLoggedInUser()
+                    .getOrThrow();
         }
 
         log.warn("Current user requested but no user is currently logged in");

src/main/java/ch/ethz/seb/sebserver/gui/service/remote/webservice/auth/OAuth2AuthorizationContextHolder.java

@@ -22,7 +22,9 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.context.annotation.Lazy;
 import org.springframework.http.HttpMethod;
+import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
+import org.springframework.http.client.ClientHttpRequestFactory;
 import org.springframework.security.access.AccessDeniedException;
 import org.springframework.security.oauth2.client.DefaultOAuth2ClientContext;
 import org.springframework.security.oauth2.client.OAuth2RestTemplate;
@@ -41,6 +43,7 @@ import org.springframework.web.client.RestTemplate;
 import ch.ethz.seb.sebserver.gbl.model.user.UserInfo;
 import ch.ethz.seb.sebserver.gbl.model.user.UserRole;
 import ch.ethz.seb.sebserver.gbl.profile.GuiProfile;
+import ch.ethz.seb.sebserver.gbl.util.Result;
 
 @Lazy
 @Component
@@ -50,23 +53,23 @@ public class OAuth2AuthorizationContextHolder implements AuthorizationContextHol
     private static final Logger log = LoggerFactory.getLogger(OAuth2AuthorizationContextHolder.class);
 
     private static final String CONTEXT_HOLDER_ATTRIBUTE = "CONTEXT_HOLDER_ATTRIBUTE";
-    private static final String OAUTH_TOKEN_URI_PATH = "oauth/token"; // TODO to config properties?
-    private static final String OAUTH_REVOKE_TOKEN_URI_PATH = "/oauth/revoke-token"; // TODO to config properties?
-    private static final String CURRENT_USER_URI_PATH = "/user/me"; // TODO to config properties?
 
     private final String guiClientId;
     private final String guiClientSecret;
-    private final WebserviceURIBuilderSupplier webserviceURIBuilderSupplier;
+    private final WebserviceURIService webserviceURIService;
+    private final ClientHttpRequestFactory clientHttpRequestFactory;
 
     @Autowired
     public OAuth2AuthorizationContextHolder(
             @Value("${sebserver.gui.webservice.clientId}") final String guiClientId,
             @Value("${sebserver.gui.webservice.clientSecret}") final String guiClientSecret,
-            final WebserviceURIBuilderSupplier webserviceURIBuilderSupplier) {
+            final WebserviceURIService webserviceURIService,
+            final ClientHttpRequestFactory clientHttpRequestFactory) {
 
         this.guiClientId = guiClientId;
         this.guiClientSecret = guiClientSecret;
-        this.webserviceURIBuilderSupplier = webserviceURIBuilderSupplier;
+        this.webserviceURIService = webserviceURIService;
+        this.clientHttpRequestFactory = clientHttpRequestFactory;
     }
 
     @Override
@@ -85,7 +88,8 @@ public class OAuth2AuthorizationContextHolder implements AuthorizationContextHol
             context = new OAuth2AuthorizationContext(
                     this.guiClientId,
                     this.guiClientSecret,
-                    this.webserviceURIBuilderSupplier);
+                    this.webserviceURIService,
+                    this.clientHttpRequestFactory);
             session.setAttribute(CONTEXT_HOLDER_ATTRIBUTE, context);
         }
 
@@ -132,7 +136,7 @@ public class OAuth2AuthorizationContextHolder implements AuthorizationContextHol
 
         private static final String GRANT_TYPE = "password";
         private static final List<String> SCOPES = Collections.unmodifiableList(
-                Arrays.asList("web-service-api-read", "web-service-api-write"));
+                Arrays.asList("read", "write"));
 
         private boolean valid = true;
 
@@ -141,34 +145,26 @@ public class OAuth2AuthorizationContextHolder implements AuthorizationContextHol
         private final String revokeTokenURI;
         private final String currentUserURI;
 
-        private UserInfo loggedInUser = null;
+        private Result<UserInfo> loggedInUser = null;
 
         OAuth2AuthorizationContext(
                 final String guiClientId,
                 final String guiClientSecret,
-                final WebserviceURIBuilderSupplier webserviceURIBuilderSupplier) {
+                final WebserviceURIService webserviceURIService,
+                final ClientHttpRequestFactory clientHttpRequestFactory) {
 
             this.resource = new ResourceOwnerPasswordResourceDetails();
-            this.resource.setAccessTokenUri(
-                    webserviceURIBuilderSupplier
-                            .getBuilder()
-                            .path(OAUTH_TOKEN_URI_PATH)
-                            .toUriString() /* restCallBuilder.withPath(OAUTH_TOKEN_URI_PATH) */);
+            this.resource.setAccessTokenUri(webserviceURIService.getOAuthTokenURI());
             this.resource.setClientId(guiClientId);
             this.resource.setClientSecret(guiClientSecret);
             this.resource.setGrantType(GRANT_TYPE);
             this.resource.setScope(SCOPES);
 
             this.restTemplate = new DisposableOAuth2RestTemplate(this.resource);
+            this.restTemplate.setRequestFactory(clientHttpRequestFactory);
 
-            this.revokeTokenURI = webserviceURIBuilderSupplier
-                    .getBuilder()
-                    .path(OAUTH_REVOKE_TOKEN_URI_PATH)
-                    .toUriString(); //restCallBuilder.withPath(OAUTH_REVOKE_TOKEN_URI_PATH);
-            this.currentUserURI = webserviceURIBuilderSupplier
-                    .getBuilder()
-                    .path(CURRENT_USER_URI_PATH)
-                    .toUriString(); //restCallBuilder.withPath(CURRENT_USER_URI_PATH);
+            this.revokeTokenURI = webserviceURIService.getOAuthRevokeTokenURI();
+            this.currentUserURI = webserviceURIService.getCurrentUserRequestURI();
         }
 
         @Override
@@ -227,7 +223,7 @@ public class OAuth2AuthorizationContextHolder implements AuthorizationContextHol
         }
 
         @Override
-        public UserInfo getLoggedInUser() {
+        public Result<UserInfo> getLoggedInUser() {
             if (this.loggedInUser != null) {
                 return this.loggedInUser;
             }
@@ -237,18 +233,27 @@ public class OAuth2AuthorizationContextHolder implements AuthorizationContextHol
             try {
                 if (isValid() && isLoggedIn()) {
                     final ResponseEntity<UserInfo> response =
-                            this.restTemplate.getForEntity(this.currentUserURI, UserInfo.class);
-                    this.loggedInUser = response.getBody();
-                    return this.loggedInUser;
+                            this.restTemplate
+                                    .getForEntity(this.currentUserURI, UserInfo.class);
+                    if (response.getStatusCode() == HttpStatus.OK) {
+                        this.loggedInUser = Result.of(response.getBody());
+                        return this.loggedInUser;
+                    } else {
+                        log.error("Unexpected error response: {}", response);
+                        return Result.ofError(new IllegalStateException(
+                                "Http Request responded with status: " + response.getStatusCode()));
+                    }
                 } else {
-                    throw new IllegalStateException("Logged in User requested on invalid or not logged in ");
+                    return Result.ofError(
+                            new IllegalStateException("Logged in User requested on invalid or not logged in "));
                 }
             } catch (final AccessDeniedException | OAuth2AccessDeniedException ade) {
                 log.error("Acccess denied while trying to request logged in User from API", ade);
-                throw ade;
+                return Result.ofError(ade);
             } catch (final Exception e) {
                 log.error("Unexpected error while trying to request logged in User from API", e);
-                throw new RuntimeException("Unexpected error while trying to request logged in User from API", e);
+                return Result.ofError(
+                        new RuntimeException("Unexpected error while trying to request logged in User from API", e));
             }
         }
 
@@ -258,8 +263,9 @@ public class OAuth2AuthorizationContextHolder implements AuthorizationContextHol
                 return false;
             }
 
-            return getLoggedInUser().roles
-                    .contains(role.name());
+            return getLoggedInUser()
+                    .getOrThrow().roles
+                            .contains(role.name());
         }
     }
 }

src/main/java/ch/ethz/seb/sebserver/gui/service/remote/webservice/auth/SEBServerAuthorizationContext.java

@@ -12,6 +12,7 @@ import org.springframework.web.client.RestTemplate;
 
 import ch.ethz.seb.sebserver.gbl.model.user.UserInfo;
 import ch.ethz.seb.sebserver.gbl.model.user.UserRole;
+import ch.ethz.seb.sebserver.gbl.util.Result;
 
 public interface SEBServerAuthorizationContext {
 
@@ -23,7 +24,7 @@ public interface SEBServerAuthorizationContext {
 
     boolean logout();
 
-    UserInfo getLoggedInUser();
+    Result<UserInfo> getLoggedInUser();
 
     public boolean hasRole(UserRole role);
 

src/main/java/ch/ethz/seb/sebserver/gui/service/remote/webservice/auth/WebserviceURIBuilderSupplier.java

@@ -1,40 +0,0 @@
-/*
- * Copyright (c) 2019 ETH Zürich, Educational Development and Technology (LET)
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- */
-
-package ch.ethz.seb.sebserver.gui.service.remote.webservice.auth;
-
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.context.annotation.Lazy;
-import org.springframework.stereotype.Component;
-import org.springframework.web.util.UriComponentsBuilder;
-
-import ch.ethz.seb.sebserver.gbl.profile.GuiProfile;
-
-@Lazy
-@Component
-@GuiProfile
-public class WebserviceURIBuilderSupplier {
-
-    private final UriComponentsBuilder webserviceURIBuilder;
-
-    public WebserviceURIBuilderSupplier(
-            @Value("${sebserver.gui.webservice.protocol}") final String webserviceProtocol,
-            @Value("${sebserver.gui.webservice.address}") final String webserviceServerAdress,
-            @Value("${sebserver.gui.webservice.portol}") final String webserviceServerPort,
-            @Value("${sebserver.gui.webservice.apipath}") final String webserviceAPIPath) {
-
-        this.webserviceURIBuilder = UriComponentsBuilder
-                .fromHttpUrl(webserviceProtocol + "://" + webserviceServerAdress)
-                .port(webserviceServerPort)
-                .path(webserviceAPIPath);
-    }
-
-    public UriComponentsBuilder getBuilder() {
-        return this.webserviceURIBuilder.cloneBuilder();
-    }
-}

src/main/java/ch/ethz/seb/sebserver/gui/service/remote/webservice/auth/WebserviceURIService.java

@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2019 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.remote.webservice.auth;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Component;
+import org.springframework.web.util.UriComponentsBuilder;
+
+import ch.ethz.seb.sebserver.gbl.api.SEBServerRestEndpoints;
+import ch.ethz.seb.sebserver.gbl.profile.GuiProfile;
+
+@Component
+@GuiProfile
+public class WebserviceURIService {
+
+    private static final String OAUTH_TOKEN_URI_PATH = "oauth/token"; // TODO to config properties?
+    private static final String OAUTH_REVOKE_TOKEN_URI_PATH = "/oauth/revoke-token"; // TODO to config properties?
+    private static final String CURRENT_USER_URI_PATH = SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/me";
+
+    private final String webserviceServerAddress;
+    private final UriComponentsBuilder webserviceURIBuilder;
+
+    public WebserviceURIService(
+            @Value("${sebserver.gui.webservice.protocol}") final String webserviceProtocol,
+            @Value("${sebserver.gui.webservice.address}") final String webserviceServerAdress,
+            @Value("${sebserver.gui.webservice.port}") final String webserviceServerPort,
+            @Value("${sebserver.gui.webservice.apipath}") final String webserviceAPIPath) {
+
+        this.webserviceServerAddress = webserviceProtocol + "://" + webserviceServerAdress + ":" + webserviceServerPort;
+        this.webserviceURIBuilder = UriComponentsBuilder
+                .fromHttpUrl(webserviceProtocol + "://" + webserviceServerAdress)
+                .port(webserviceServerPort)
+                .path(webserviceAPIPath);
+    }
+
+    public UriComponentsBuilder getBuilder() {
+        return this.webserviceURIBuilder.cloneBuilder();
+    }
+
+    public String getOAuthTokenURI() {
+        return UriComponentsBuilder.fromHttpUrl(this.webserviceServerAddress)
+                .path(OAUTH_TOKEN_URI_PATH)
+                .toUriString();
+    }
+
+    public String getOAuthRevokeTokenURI() {
+        return UriComponentsBuilder.fromHttpUrl(this.webserviceServerAddress)
+                .path(OAUTH_REVOKE_TOKEN_URI_PATH)
+                .toUriString();
+    }
+
+    public String getCurrentUserRequestURI() {
+        return getBuilder()
+                .path(CURRENT_USER_URI_PATH)
+                .toUriString();
+    }
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/widget/Message.java

@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.widget;
+
+import org.eclipse.rap.rwt.RWT;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.MessageBox;
+import org.eclipse.swt.widgets.Shell;
+
+public class Message extends MessageBox {
+
+    private static final long serialVersionUID = 6973272221493264432L;
+
+    public Message(final Shell parent, final String title, final String message, final int type) {
+        super(parent, type);
+        super.setText(title);
+        super.setMessage(message);
+    }
+
+    @Override
+    protected void prepareOpen() {
+        super.prepareOpen();
+        final GridLayout layout = (GridLayout) super.shell.getLayout();
+        layout.marginTop = 10;
+        layout.marginBottom = 10;
+        super.shell.setData(RWT.CUSTOM_VARIANT, "message");
+        final Rectangle bounds = super.shell.getBounds();
+        if (bounds.width < 400) {
+            bounds.x = bounds.x - (400 - bounds.width) / 2;
+            bounds.width = 400;
+            super.shell.setBounds(bounds);
+        }
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/widget/SingleSelection.java

@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.widget;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.widgets.Combo;
+import org.eclipse.swt.widgets.Composite;
+
+import ch.ethz.seb.sebserver.gbl.util.Tuple;
+
+public class SingleSelection extends Combo {
+
+    private static final long serialVersionUID = 6522063655406404279L;
+
+    final List<String> valueMapping;
+    final List<String> keyMapping;
+
+    public SingleSelection(final Composite parent, final List<Tuple<String>> mapping) {
+        super(parent, SWT.READ_ONLY);
+        this.valueMapping = mapping.stream()
+                .map(t -> t._2)
+                .collect(Collectors.toList());
+        this.keyMapping = mapping.stream()
+                .map(t -> t._1)
+                .collect(Collectors.toList());
+        super.setItems(this.valueMapping.toArray(new String[mapping.size()]));
+    }
+
+    public void select(final String key) {
+        final int selectionindex = this.keyMapping.indexOf(key);
+        if (selectionindex < 0) {
+            return;
+        }
+
+        super.select(selectionindex);
+    }
+
+    public String getSelectionValue() {
+        final int selectionindex = super.getSelectionIndex();
+        if (selectionindex < 0) {
+            return null;
+        }
+
+        return this.keyMapping.get(selectionindex);
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/gui/service/widget/WidgetFactory.java

@@ -0,0 +1,470 @@
+/*
+ * Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.gui.service.widget;
+
+import static ch.ethz.seb.sebserver.gui.service.i18n.PolyglotPageService.POLYGLOT_TREE_ITEM_TEXT_DATA_KEY;
+import static ch.ethz.seb.sebserver.gui.service.i18n.PolyglotPageService.POLYGLOT_WIDGET_FUNCTION_KEY;
+
+import java.io.InputStream;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Locale;
+import java.util.function.Consumer;
+
+import org.eclipse.rap.rwt.RWT;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.Device;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.ImageData;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.widgets.Button;
+import org.eclipse.swt.widgets.Combo;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Label;
+import org.eclipse.swt.widgets.Listener;
+import org.eclipse.swt.widgets.Table;
+import org.eclipse.swt.widgets.TableColumn;
+import org.eclipse.swt.widgets.TableItem;
+import org.eclipse.swt.widgets.Text;
+import org.eclipse.swt.widgets.Tree;
+import org.eclipse.swt.widgets.TreeItem;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.context.annotation.Lazy;
+import org.springframework.stereotype.Service;
+
+import ch.ethz.seb.sebserver.gbl.profile.GuiProfile;
+import ch.ethz.seb.sebserver.gbl.util.Tuple;
+import ch.ethz.seb.sebserver.gui.service.i18n.I18nSupport;
+import ch.ethz.seb.sebserver.gui.service.i18n.LocTextKey;
+import ch.ethz.seb.sebserver.gui.service.i18n.PolyglotPageService;
+import ch.ethz.seb.sebserver.gui.service.page.PageContext;
+
+@Lazy
+@Service
+@GuiProfile
+public class WidgetFactory {
+
+    private static final Logger log = LoggerFactory.getLogger(WidgetFactory.class);
+
+    public enum IconButtonType {
+        MAXIMIZE("maximize.png"),
+        MINIMIZE("minimize.png"),
+        SAVE_ACTION("saveAction.png"),
+        NEW_ACTION("newAction.png"),
+        DELETE_ACTION("deleteAction.png"),
+        ;
+
+        private String fileName;
+        private ImageData image = null;
+
+        private IconButtonType(final String fileName) {
+            this.fileName = fileName;
+        }
+
+        public Image getImage(final Device device) {
+            if (this.image == null) {
+                try {
+                    final InputStream resourceAsStream =
+                            WidgetFactory.class.getResourceAsStream("/static/images/" + this.fileName);
+                    this.image = new ImageData(resourceAsStream);
+                } catch (final Exception e) {
+                    log.error("Failed to load resource image: {}", this.fileName, e);
+                }
+            }
+
+            return new Image(device, this.image);
+        }
+
+    }
+
+    private final PolyglotPageService polyglotPageService;
+    private final I18nSupport i18nSupport;
+
+    public WidgetFactory(final PolyglotPageService polyglotPageService) {
+        this.polyglotPageService = polyglotPageService;
+        this.i18nSupport = polyglotPageService.getI18nSupport();
+    }
+
+    public Button buttonLocalized(final Composite parent, final String locTextKey) {
+        final Button button = new Button(parent, SWT.NONE);
+        this.injectI18n(button, new LocTextKey(locTextKey));
+        return button;
+    }
+
+    public Button buttonLocalized(final Composite parent, final LocTextKey locTextKey) {
+        final Button button = new Button(parent, SWT.NONE);
+        this.injectI18n(button, locTextKey);
+        return button;
+    }
+
+    public Button buttonLocalized(final Composite parent, final String style, final String locTextKey) {
+        final Button button = new Button(parent, SWT.NONE);
+        this.injectI18n(button, new LocTextKey(locTextKey));
+        button.setData(RWT.CUSTOM_VARIANT, style);
+        return button;
+    }
+
+    public Label label(final Composite parent, final String text) {
+        final Label label = new Label(parent, SWT.NONE);
+        label.setText(text);
+        return label;
+    }
+
+    public Label labelLocalized(final Composite parent, final String locTextKey) {
+        final Label label = new Label(parent, SWT.NONE);
+        this.injectI18n(label, new LocTextKey(locTextKey));
+        return label;
+    }
+
+    public Label labelLocalized(final Composite parent, final LocTextKey locTextKey) {
+        final Label label = new Label(parent, SWT.NONE);
+        this.injectI18n(label, locTextKey);
+        return label;
+    }
+
+    public Label labelLocalized(final Composite parent, final String style, final LocTextKey locTextKey) {
+        final Label label = new Label(parent, SWT.NONE);
+        this.injectI18n(label, locTextKey);
+        label.setData(RWT.CUSTOM_VARIANT, style);
+        return label;
+    }
+
+    public Label labelLocalized(
+            final Composite parent,
+            final LocTextKey locTextKey,
+            final LocTextKey locToolTextKey) {
+
+        final Label label = new Label(parent, SWT.NONE);
+        this.injectI18n(label, locTextKey, locToolTextKey);
+        return label;
+    }
+
+    public Label labelLocalized(
+            final Composite parent,
+            final String style,
+            final LocTextKey locTextKey,
+            final LocTextKey locToolTextKey) {
+
+        final Label label = new Label(parent, SWT.NONE);
+        this.injectI18n(label, locTextKey, locToolTextKey);
+        label.setData(RWT.CUSTOM_VARIANT, style);
+        return label;
+    }
+
+    public Tree treeLocalized(final Composite parent, final int style) {
+        final Tree tree = new Tree(parent, SWT.SINGLE | SWT.FULL_SELECTION);
+        this.injectI18n(tree);
+        return tree;
+    }
+
+    public TreeItem treeItemLocalized(final Tree parent, final String locTextKey) {
+        final TreeItem item = new TreeItem(parent, SWT.NONE);
+        this.injectI18n(item, new LocTextKey(locTextKey));
+        return item;
+    }
+
+    public TreeItem treeItemLocalized(final Tree parent, final LocTextKey locTextKey) {
+        final TreeItem item = new TreeItem(parent, SWT.NONE);
+        this.injectI18n(item, locTextKey);
+        return item;
+    }
+
+    public TreeItem treeItemLocalized(final TreeItem parent, final String locTextKey) {
+        final TreeItem item = new TreeItem(parent, SWT.NONE);
+        this.injectI18n(item, new LocTextKey(locTextKey));
+        return item;
+    }
+
+    public TreeItem treeItemLocalized(final TreeItem parent, final LocTextKey locTextKey) {
+        final TreeItem item = new TreeItem(parent, SWT.NONE);
+        this.injectI18n(item, locTextKey);
+        return item;
+    }
+
+    public Table tableLocalized(final Composite parent) {
+        final Table table = new Table(parent, SWT.NONE);
+        this.injectI18n(table);
+        return table;
+    }
+
+    public TableColumn tableColumnLocalized(final Table table, final String locTextKey) {
+        final TableColumn tableColumn = new TableColumn(table, SWT.NONE);
+        this.injectI18n(tableColumn, new LocTextKey(locTextKey));
+        return tableColumn;
+    }
+
+    public Label labelSeparator(final Composite parent) {
+        final Label label = new Label(parent, SWT.SEPARATOR);
+        return label;
+    }
+
+    public Label imageButton(
+            final IconButtonType type,
+            final Composite parent,
+            final LocTextKey toolTip,
+            final Listener listener) {
+
+        final Label imageButton = labelLocalized(parent, (LocTextKey) null, toolTip);
+        imageButton.setData(RWT.CUSTOM_VARIANT, "imageButton");
+        imageButton.setImage(type.getImage(parent.getDisplay()));
+        if (listener != null) {
+            imageButton.addListener(SWT.MouseDown, listener);
+        }
+        return imageButton;
+    }
+
+    public Label formLabelLocalized(final Composite parent, final String locTextKey) {
+        final Label label = labelLocalized(parent, locTextKey);
+        final GridData gridData = new GridData(SWT.RIGHT, SWT.CENTER, true, false);
+        label.setLayoutData(gridData);
+        return label;
+    }
+
+    public Label formValueLabel(final Composite parent, final String value, final int span) {
+        final Label label = new Label(parent, SWT.NONE);
+        label.setText(value);
+        final GridData gridData = new GridData(SWT.LEFT, SWT.CENTER, true, false, span, 1);
+        label.setLayoutData(gridData);
+        return label;
+    }
+
+    public Text formTextInput(final Composite parent, final String value) {
+        return formTextInput(parent, value, 1, 1);
+    }
+
+    public Text formTextInput(final Composite parent, final String value, final int hspan, final int vspan) {
+        final Text textInput = new Text(parent, SWT.LEFT | SWT.BORDER);
+        final GridData gridData = new GridData(SWT.FILL, SWT.FILL, true, false, hspan, vspan);
+        gridData.heightHint = 15;
+        textInput.setLayoutData(gridData);
+        textInput.setText(value);
+        return textInput;
+    }
+
+    public Combo formSingleSelectionLocalized(
+            final Composite parent,
+            final String selection,
+            final List<Tuple<String>> items) {
+
+        return formSingleSelectionLocalized(parent, selection, items, 1, 1);
+    }
+
+    public Combo formSingleSelectionLocalized(
+            final Composite parent,
+            final String selection,
+            final List<Tuple<String>> items,
+            final int hspan, final int vspan) {
+
+        final SingleSelection combo = singleSelectionLocalized(parent, items);
+        final GridData gridData = new GridData(SWT.FILL, SWT.FILL, true, false, hspan, vspan);
+        gridData.heightHint = 25;
+        combo.setLayoutData(gridData);
+        combo.select(selection);
+        return combo;
+    }
+
+    public void formEmpty(final Composite parent) {
+        formEmpty(parent, 1, 1);
+    }
+
+    public void formEmpty(final Composite parent, final int hspan, final int vspan) {
+        final Label empty = new Label(parent, SWT.LEFT);
+        empty.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false, hspan, vspan));
+        empty.setText("");
+    }
+
+    public SingleSelection singleSelectionLocalized(
+            final Composite parent,
+            final List<Tuple<String>> items) {
+
+        final SingleSelection combo = new SingleSelection(parent, items);
+        this.injectI18n(combo, combo.valueMapping);
+        return combo;
+    }
+
+    public void injectI18n(final Label label, final LocTextKey locTextKey) {
+        injectI18n(label, locTextKey, null);
+    }
+
+    public void injectI18n(final Label label, final LocTextKey locTextKey, final LocTextKey locToolTipKey) {
+        final Consumer<Label> labelFunction = labelFunction(locTextKey, locToolTipKey, this.i18nSupport);
+        label.setData(POLYGLOT_WIDGET_FUNCTION_KEY, labelFunction);
+        labelFunction.accept(label);
+    }
+
+    public void injectI18n(final Button button, final LocTextKey locTextKey) {
+        injectI18n(button, locTextKey, null);
+    }
+
+    public void injectI18n(final Button button, final LocTextKey locTextKey, final LocTextKey locToolTipKey) {
+        final Consumer<Button> buttonFunction = buttonFunction(locTextKey, locToolTipKey, this.i18nSupport);
+        button.setData(POLYGLOT_WIDGET_FUNCTION_KEY, buttonFunction);
+        buttonFunction.accept(button);
+    }
+
+    public void injectI18n(final Tree tree) {
+        tree.setData(POLYGLOT_WIDGET_FUNCTION_KEY, treeFunction(this.i18nSupport));
+    }
+
+    public void injectI18n(final TreeItem treeItem, final LocTextKey locTextKey) {
+        treeItem.setData(POLYGLOT_TREE_ITEM_TEXT_DATA_KEY, locTextKey);
+        treeItem.setText(this.i18nSupport.getText(locTextKey));
+    }
+
+    public void injectI18n(final Table table) {
+        table.setData(POLYGLOT_WIDGET_FUNCTION_KEY, tableFunction(this.i18nSupport));
+    }
+
+    public void injectI18n(final TableColumn tableColumn, final LocTextKey locTextKey) {
+        tableColumn.setData(POLYGLOT_TREE_ITEM_TEXT_DATA_KEY, locTextKey);
+        tableColumn.setText(this.i18nSupport.getText(locTextKey));
+    }
+
+    public void injectI18n(final TableItem tableItem, final LocTextKey... locTextKey) {
+        if (locTextKey == null) {
+            return;
+        }
+
+        tableItem.setData(POLYGLOT_TREE_ITEM_TEXT_DATA_KEY, locTextKey);
+        for (int i = 0; i < locTextKey.length; i++) {
+            tableItem.setText(i, this.i18nSupport.getText(locTextKey[i]));
+        }
+    }
+
+    public void injectI18n(final Combo combo, final List<String> items) {
+        final Consumer<Combo> comboFunction = comboFunction(items, this.i18nSupport);
+        combo.setData(POLYGLOT_WIDGET_FUNCTION_KEY, comboFunction);
+        comboFunction.accept(combo);
+    }
+
+    public void createLanguageSelector(final PageContext composerCtx) {
+        for (final Locale locale : this.i18nSupport.supportedLanguages()) {
+            final Label languageSelection = new Label(composerCtx.getParent(), SWT.NONE);
+            languageSelection.setData(POLYGLOT_WIDGET_FUNCTION_KEY,
+                    langSelectionLabelFunction(locale, this.i18nSupport));
+            languageSelection.setData(RWT.CUSTOM_VARIANT, "header");
+            languageSelection.setText("|  " + locale.getLanguage().toUpperCase());
+            //languageSelection.updateLocale(this.i18nSupport);
+            languageSelection.addListener(SWT.MouseDown, event -> {
+                this.polyglotPageService.setPageLocale(composerCtx.getRoot(), locale);
+            });
+        }
+    }
+
+    private static Consumer<Tree> treeFunction(final I18nSupport i18nSupport) {
+        return tree -> updateLocale(tree.getItems(), i18nSupport);
+    }
+
+    private static Consumer<Table> tableFunction(final I18nSupport i18nSupport) {
+        return table -> {
+            updateLocale(table.getColumns(), i18nSupport);
+            updateLocale(table.getItems(), i18nSupport);
+        };
+    }
+
+    private static final Consumer<Label> langSelectionLabelFunction(
+            final Locale locale,
+            final I18nSupport i18nSupport) {
+
+        return label -> label.setVisible(
+                !i18nSupport.getCurrentLocale()
+                        .getLanguage()
+                        .equals(locale.getLanguage()));
+    }
+
+    private static final Consumer<Label> labelFunction(
+            final LocTextKey locTextKey,
+            final LocTextKey locToolTipKey,
+            final I18nSupport i18nSupport) {
+
+        return label -> {
+            if (locTextKey != null) {
+                label.setText(i18nSupport.getText(locTextKey));
+            }
+            if (locToolTipKey != null) {
+                label.setToolTipText(i18nSupport.getText(locToolTipKey));
+            }
+        };
+    }
+
+    private static final Consumer<Combo> comboFunction(
+            final List<String> items,
+            final I18nSupport i18nSupport) {
+
+        return combo -> {
+            int i = 0;
+            final Iterator<String> iterator = items.iterator();
+            while (iterator.hasNext()) {
+                combo.setItem(i, i18nSupport.getText(iterator.next()));
+                i++;
+            }
+        };
+    }
+
+    private static final Consumer<Button> buttonFunction(
+            final LocTextKey locTextKey,
+            final LocTextKey locToolTipKey,
+            final I18nSupport i18nSupport) {
+
+        return button -> {
+            if (locTextKey != null) {
+                button.setText(i18nSupport.getText(locTextKey));
+            }
+            if (locToolTipKey != null) {
+                button.setToolTipText(i18nSupport.getText(locToolTipKey));
+            }
+        };
+    }
+
+    private static final void updateLocale(final TreeItem[] items, final I18nSupport i18nSupport) {
+        if (items == null) {
+            return;
+        }
+
+        for (final TreeItem childItem : items) {
+            final LocTextKey locTextKey = (LocTextKey) childItem.getData(POLYGLOT_TREE_ITEM_TEXT_DATA_KEY);
+            if (locTextKey != null) {
+                childItem.setText(i18nSupport.getText(locTextKey));
+            }
+            updateLocale(childItem.getItems(), i18nSupport);
+        }
+    }
+
+    private static void updateLocale(final TableItem[] items, final I18nSupport i18nSupport) {
+        if (items == null) {
+            return;
+        }
+
+        for (final TableItem childItem : items) {
+            final LocTextKey[] locTextKey = (LocTextKey[]) childItem.getData(POLYGLOT_TREE_ITEM_TEXT_DATA_KEY);
+            if (locTextKey != null) {
+                for (int i = 0; i < locTextKey.length; i++) {
+                    if (locTextKey[i] != null) {
+                        childItem.setText(i, i18nSupport.getText(locTextKey[i]));
+                    }
+                }
+            }
+        }
+    }
+
+    private static void updateLocale(final TableColumn[] columns, final I18nSupport i18nSupport) {
+        if (columns == null) {
+            return;
+        }
+
+        for (final TableColumn childItem : columns) {
+            final LocTextKey locTextKey = (LocTextKey) childItem.getData(POLYGLOT_TREE_ITEM_TEXT_DATA_KEY);
+            if (locTextKey != null) {
+                childItem.setText(i18nSupport.getText(locTextKey));
+            }
+        }
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/bulkaction/BulkActionSupportDAO.java

@@ -43,19 +43,19 @@ public interface BulkActionSupportDAO<T extends Entity> {
                 return (this instanceof ActivatableEntityDAO)
                         ? ((ActivatableEntityDAO<?, ?>) this).setActive(all, true)
                                 .map(BulkActionSupportDAO::transformResult)
-                                .getOrHandleError(error -> handleBulkActionError(error, all))
+                                .get(error -> handleBulkActionError(error, all))
                         : Collections.emptyList();
             case DEACTIVATE:
                 return (this instanceof ActivatableEntityDAO)
                         ? ((ActivatableEntityDAO<?, ?>) this).setActive(all, false)
                                 .map(BulkActionSupportDAO::transformResult)
-                                .getOrHandleError(error -> handleBulkActionError(error, all))
+                                .get(error -> handleBulkActionError(error, all))
                         : Collections.emptyList();
             case HARD_DELETE:
                 return (this instanceof EntityDAO)
                         ? ((EntityDAO<?, ?>) this).delete(all)
                                 .map(BulkActionSupportDAO::transformResult)
-                                .getOrHandleError(error -> handleBulkActionError(error, all))
+                                .get(error -> handleBulkActionError(error, all))
                         : Collections.emptyList();
         }
 

src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/dao/EntityDAO.java

@@ -19,7 +19,7 @@ import org.springframework.transaction.annotation.Transactional;
 
 import ch.ethz.seb.sebserver.gbl.model.Entity;
 import ch.ethz.seb.sebserver.gbl.model.EntityKey;
-import ch.ethz.seb.sebserver.gbl.model.EntityKeyAndName;
+import ch.ethz.seb.sebserver.gbl.model.EntityName;
 import ch.ethz.seb.sebserver.gbl.model.EntityType;
 import ch.ethz.seb.sebserver.gbl.model.ModelIdAware;
 import ch.ethz.seb.sebserver.gbl.util.Result;
@@ -66,12 +66,12 @@ public interface EntityDAO<T extends Entity, M extends ModelIdAware> {
     Result<Collection<T>> loadEntities(Collection<EntityKey> keys);
 
     @Transactional(readOnly = true)
-    default Result<Collection<EntityKeyAndName>> loadEntityNames(final Collection<EntityKey> keys) {
+    default Result<Collection<EntityName>> loadEntityNames(final Collection<EntityKey> keys) {
         return Result.tryCatch(() -> {
             return loadEntities(keys)
                     .getOrThrow()
                     .stream()
-                    .map(entity -> new EntityKeyAndName(
+                    .map(entity -> new EntityName(
                             entity.entityType(),
                             entity.getModelId(),
                             entity.getName()))

src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/dao/FilterMap.java

@@ -11,7 +11,7 @@ package ch.ethz.seb.sebserver.webservice.servicelayer.dao;
 import org.joda.time.DateTime;
 import org.springframework.util.MultiValueMap;
 
-import ch.ethz.seb.sebserver.gbl.POSTMapper;
+import ch.ethz.seb.sebserver.gbl.api.POSTMapper;
 import ch.ethz.seb.sebserver.gbl.model.exam.Exam;
 import ch.ethz.seb.sebserver.gbl.model.exam.Indicator;
 import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetup;

src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/dao/impl/UserDaoImpl.java

@@ -32,8 +32,8 @@ import org.springframework.stereotype.Component;
 import org.springframework.transaction.annotation.Transactional;
 
 import ch.ethz.seb.sebserver.WebSecurityConfig;
-import ch.ethz.seb.sebserver.gbl.model.APIMessage.APIMessageException;
-import ch.ethz.seb.sebserver.gbl.model.APIMessage.ErrorMessage;
+import ch.ethz.seb.sebserver.gbl.api.APIMessage.APIMessageException;
+import ch.ethz.seb.sebserver.gbl.api.APIMessage.ErrorMessage;
 import ch.ethz.seb.sebserver.gbl.model.EntityKey;
 import ch.ethz.seb.sebserver.gbl.model.EntityType;
 import ch.ethz.seb.sebserver.gbl.model.user.UserInfo;

src/main/java/ch/ethz/seb/sebserver/webservice/weblayer/ClientSessionWebSecurityConfig.java

@@ -22,6 +22,7 @@ import org.springframework.beans.factory.annotation.Value;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.core.annotation.Order;
+import org.springframework.http.HttpStatus;
 import org.springframework.http.MediaType;
 import org.springframework.security.authentication.AuthenticationManager;
 import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
@@ -219,6 +220,7 @@ public class ClientSessionWebSecurityConfig extends WebSecurityConfigurerAdapter
             log.warn("Unauthorized Request: {} : Redirect to login after unauthorized request",
                     request.getRequestURI());
 
+            response.setStatus(HttpStatus.UNAUTHORIZED.value());
             response.sendRedirect(this.redirect);
         }
     }

src/main/java/ch/ethz/seb/sebserver/webservice/weblayer/WebServiceUserDetails.java

@@ -31,8 +31,8 @@ public class WebServiceUserDetails implements UserDetailsService {
     @Override
     public UserDetails loadUserByUsername(final String username) throws UsernameNotFoundException {
         return this.userDAO.sebServerUserByUsername(username)
-                .getOrHandleError(t -> {
-                    throw new UsernameNotFoundException("No User with name: " + username + " found", t);
+                .get(error -> {
+                    throw new UsernameNotFoundException("No User with name: " + username + " found", error);
                 });
     }
 

src/main/java/ch/ethz/seb/sebserver/webservice/weblayer/api/APIExceptionHandler.java

@@ -10,6 +10,7 @@ package ch.ethz.seb.sebserver.webservice.weblayer.api;
 
 import java.util.Arrays;
 import java.util.Collection;
+import java.util.List;
 import java.util.stream.Collectors;
 
 import org.slf4j.Logger;
@@ -26,8 +27,8 @@ import org.springframework.web.bind.annotation.ExceptionHandler;
 import org.springframework.web.context.request.WebRequest;
 import org.springframework.web.servlet.mvc.method.annotation.ResponseEntityExceptionHandler;
 
-import ch.ethz.seb.sebserver.gbl.model.APIMessage;
-import ch.ethz.seb.sebserver.gbl.model.APIMessage.APIMessageException;
+import ch.ethz.seb.sebserver.gbl.api.APIMessage;
+import ch.ethz.seb.sebserver.gbl.api.APIMessage.APIMessageException;
 import ch.ethz.seb.sebserver.webservice.servicelayer.authorization.PermissionDeniedException;
 import ch.ethz.seb.sebserver.webservice.servicelayer.dao.ResourceNotFoundException;
 import ch.ethz.seb.sebserver.webservice.servicelayer.validation.BeanValidationException;
@@ -47,7 +48,8 @@ public class APIExceptionHandler extends ResponseEntityExceptionHandler {
             final WebRequest request) {
 
         log.error("Unexpected generic error catched at the API endpoint: ", ex);
-        return new ResponseEntity<>(APIMessage.ErrorMessage.GENERIC.of(ex.getMessage()), status);
+        final List<APIMessage> errors = Arrays.asList(APIMessage.ErrorMessage.GENERIC.of(ex.getMessage()));
+        return new ResponseEntity<>(errors, status);
     }
 
     @Override

src/main/java/ch/ethz/seb/sebserver/webservice/weblayer/api/EntityController.java

@@ -28,11 +28,11 @@ import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.bind.annotation.RequestParam;
 
 import ch.ethz.seb.sebserver.gbl.Constants;
-import ch.ethz.seb.sebserver.gbl.POSTMapper;
+import ch.ethz.seb.sebserver.gbl.api.POSTMapper;
 import ch.ethz.seb.sebserver.gbl.model.Domain;
 import ch.ethz.seb.sebserver.gbl.model.Entity;
 import ch.ethz.seb.sebserver.gbl.model.EntityKey;
-import ch.ethz.seb.sebserver.gbl.model.EntityKeyAndName;
+import ch.ethz.seb.sebserver.gbl.model.EntityName;
 import ch.ethz.seb.sebserver.gbl.model.EntityProcessingReport;
 import ch.ethz.seb.sebserver.gbl.model.EntityType;
 import ch.ethz.seb.sebserver.gbl.model.Page;
@@ -124,7 +124,7 @@ public abstract class EntityController<T extends GrantEntity, M extends GrantEnt
             method = RequestMethod.GET,
             consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE,
             produces = MediaType.APPLICATION_JSON_VALUE)
-    public Collection<EntityKeyAndName> getNames(
+    public Collection<EntityName> getNames(
             @RequestParam(
                     name = Entity.FILTER_ATTR_INSTITUTION,
                     required = true,

src/main/java/ch/ethz/seb/sebserver/webservice/weblayer/api/ExamAdministrationController.java

@@ -30,8 +30,9 @@ import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
-import ch.ethz.seb.sebserver.gbl.POSTMapper;
 import ch.ethz.seb.sebserver.gbl.model.Domain.LMS_SETUP;
+import ch.ethz.seb.sebserver.gbl.api.POSTMapper;
+import ch.ethz.seb.sebserver.gbl.api.SEBServerRestEndpoints;
 import ch.ethz.seb.sebserver.gbl.model.Entity;
 import ch.ethz.seb.sebserver.gbl.model.EntityKey;
 import ch.ethz.seb.sebserver.gbl.model.EntityType;
@@ -58,7 +59,7 @@ import ch.ethz.seb.sebserver.webservice.servicelayer.validation.BeanValidationSe
 
 @WebServiceProfile
 @RestController
-@RequestMapping("/${sebserver.webservice.api.admin.endpoint}" + RestAPI.ENDPOINT_EXAM_ADMINISTRATION)
+@RequestMapping("/${sebserver.webservice.api.admin.endpoint}" + SEBServerRestEndpoints.ENDPOINT_EXAM_ADMINISTRATION)
 public class ExamAdministrationController extends ActivatableEntityController<Exam, Exam> {
 
     private final ExamDAO examDAO;

src/main/java/ch/ethz/seb/sebserver/webservice/weblayer/api/InstitutionController.java

@@ -13,7 +13,8 @@ import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.bind.annotation.RestController;
 
-import ch.ethz.seb.sebserver.gbl.POSTMapper;
+import ch.ethz.seb.sebserver.gbl.api.POSTMapper;
+import ch.ethz.seb.sebserver.gbl.api.SEBServerRestEndpoints;
 import ch.ethz.seb.sebserver.gbl.model.institution.Institution;
 import ch.ethz.seb.sebserver.gbl.profile.WebServiceProfile;
 import ch.ethz.seb.sebserver.webservice.datalayer.batis.mapper.InstitutionRecordDynamicSqlSupport;
@@ -27,7 +28,7 @@ import ch.ethz.seb.sebserver.webservice.servicelayer.validation.BeanValidationSe
 
 @WebServiceProfile
 @RestController
-@RequestMapping("/${sebserver.webservice.api.admin.endpoint}" + RestAPI.ENDPOINT_INSTITUTION)
+@RequestMapping("/${sebserver.webservice.api.admin.endpoint}" + SEBServerRestEndpoints.ENDPOINT_INSTITUTION)
 public class InstitutionController extends ActivatableEntityController<Institution, Institution> {
 
     private final InstitutionDAO institutionDAO;

src/main/java/ch/ethz/seb/sebserver/webservice/weblayer/api/LmsSetupController.java

@@ -21,7 +21,8 @@ import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.bind.annotation.RestController;
 
-import ch.ethz.seb.sebserver.gbl.POSTMapper;
+import ch.ethz.seb.sebserver.gbl.api.POSTMapper;
+import ch.ethz.seb.sebserver.gbl.api.SEBServerRestEndpoints;
 import ch.ethz.seb.sebserver.gbl.model.EntityType;
 import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetup;
 import ch.ethz.seb.sebserver.gbl.profile.WebServiceProfile;
@@ -37,7 +38,7 @@ import ch.ethz.seb.sebserver.webservice.servicelayer.validation.BeanValidationSe
 
 @WebServiceProfile
 @RestController
-@RequestMapping("/${sebserver.webservice.api.admin.endpoint}" + RestAPI.ENDPOINT_LMS_SETUP)
+@RequestMapping("/${sebserver.webservice.api.admin.endpoint}" + SEBServerRestEndpoints.ENDPOINT_LMS_SETUP)
 public class LmsSetupController extends ActivatableEntityController<LmsSetup, LmsSetup> {
 
     private final LmsAPIService lmsAPIService;

src/main/java/ch/ethz/seb/sebserver/webservice/weblayer/api/QuizImportController.java

@@ -15,6 +15,7 @@ import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
 import ch.ethz.seb.sebserver.gbl.model.Domain.LMS_SETUP;
+import ch.ethz.seb.sebserver.gbl.api.SEBServerRestEndpoints;
 import ch.ethz.seb.sebserver.gbl.model.EntityType;
 import ch.ethz.seb.sebserver.gbl.model.Page;
 import ch.ethz.seb.sebserver.gbl.model.exam.QuizData;
@@ -27,7 +28,7 @@ import ch.ethz.seb.sebserver.webservice.servicelayer.lms.LmsAPITemplate;
 
 @WebServiceProfile
 @RestController
-@RequestMapping("/${sebserver.webservice.api.admin.endpoint}" + RestAPI.ENDPOINT_QUIZ_IMPORT)
+@RequestMapping("/${sebserver.webservice.api.admin.endpoint}" + SEBServerRestEndpoints.ENDPOINT_QUIZ_IMPORT)
 public class QuizImportController {
 
     private final int defaultPageSize;

src/main/java/ch/ethz/seb/sebserver/webservice/weblayer/api/UserAccountController.java

@@ -14,7 +14,8 @@ import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.bind.annotation.RestController;
 
-import ch.ethz.seb.sebserver.gbl.POSTMapper;
+import ch.ethz.seb.sebserver.gbl.api.POSTMapper;
+import ch.ethz.seb.sebserver.gbl.api.SEBServerRestEndpoints;
 import ch.ethz.seb.sebserver.gbl.model.user.UserInfo;
 import ch.ethz.seb.sebserver.gbl.model.user.UserMod;
 import ch.ethz.seb.sebserver.gbl.profile.WebServiceProfile;
@@ -30,7 +31,7 @@ import ch.ethz.seb.sebserver.webservice.weblayer.oauth.RevokeTokenEndpoint;
 
 @WebServiceProfile
 @RestController
-@RequestMapping("${sebserver.webservice.api.admin.endpoint}" + RestAPI.ENDPOINT_USER_ACCOUNT)
+@RequestMapping("${sebserver.webservice.api.admin.endpoint}" + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT)
 public class UserAccountController extends ActivatableEntityController<UserInfo, UserMod> {
 
     private final ApplicationEventPublisher applicationEventPublisher;

src/main/java/ch/ethz/seb/sebserver/webservice/weblayer/api/UserActivityLogController.java

@@ -17,6 +17,7 @@ import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
+import ch.ethz.seb.sebserver.gbl.api.SEBServerRestEndpoints;
 import ch.ethz.seb.sebserver.gbl.model.EntityType;
 import ch.ethz.seb.sebserver.gbl.model.Page;
 import ch.ethz.seb.sebserver.gbl.model.user.UserActivityLog;
@@ -32,7 +33,7 @@ import ch.ethz.seb.sebserver.webservice.servicelayer.dao.UserActivityLogDAO;
 
 @WebServiceProfile
 @RestController
-@RequestMapping("/${sebserver.webservice.api.admin.endpoint}" + RestAPI.ENDPOINT_USER_ACTIVITY_LOG)
+@RequestMapping("/${sebserver.webservice.api.admin.endpoint}" + SEBServerRestEndpoints.ENDPOINT_USER_ACTIVITY_LOG)
 public class UserActivityLogController {
 
     private final UserActivityLogDAO userActivityLogDAO;

src/main/resources/config/application.properties

@@ -1,2 +1,4 @@
 spring.application.name=SEB Server
-spring.profiles.active=dev
+spring.profiles.active=dev
+
+sebserver.version=1.0 beta

src/main/resources/messages.properties

@@ -0,0 +1,31 @@
+################################
+# Overall
+################################
+
+sebserver.overall.version=SEB Server Version : {0}
+sebserver.overall.imprint=Imprint
+sebserver.overall.about=About
+
+
+################################
+# Login Page
+################################
+
+sebserver.login.username=User Name
+sebserver.login.pwd=Password
+sebserver.login.login=Sign In
+sebserver.login.failed.title=Login Failed
+sebserver.login.failed.message=Access Denied: Wrong username or password
+
+################################
+# Main Page
+################################
+
+sebserver.logout=Logout
+sebserver.mainpage.maximize.tooltip=Maximize
+sebserver.mainpage.minimize.tooltip=Minimize
+sebserver.activitiespane.title=Activities
+sebserver.actionpane.title=Actions
+sebserver.activities.inst=Institution
+
+sebserver.error.unexpected=Unexpected Error

src/main/resources/static/css/sebserver.css

@@ -84,7 +84,7 @@ Composite.content {
     margin: 0 0 0 0;
 }
 
-Composite.selectionPane {
+Composite.actionPane {
     background-color: #D3D9DB;
 }
 

src/test/java/ch/ethz/seb/sebserver/gbl/model/user/UserActivityLogTest.java

@@ -14,7 +14,7 @@ import java.io.IOException;
 
 import org.junit.Test;
 
-import ch.ethz.seb.sebserver.gbl.JSONMapper;
+import ch.ethz.seb.sebserver.gbl.api.JSONMapper;
 import ch.ethz.seb.sebserver.gbl.model.EntityType;
 import ch.ethz.seb.sebserver.webservice.servicelayer.dao.UserActivityLogDAO.ActivityType;
 

src/test/java/ch/ethz/seb/sebserver/gbl/util/ResultTest.java

@@ -75,8 +75,8 @@ public class ResultTest {
         final Result<String> resultOf = Result.of("ONE");
         final Result<String> resultOfError = Result.ofError(new RuntimeException("Some Error"));
 
-        assertEquals("ONE", resultOf.getOrElse("TWO"));
-        assertEquals("TWO", resultOfError.getOrElse("TWO"));
+        assertEquals("ONE", resultOf.getOr("TWO"));
+        assertEquals("TWO", resultOfError.getOr("TWO"));
 
         assertEquals("ONE", resultOf.getOrElse(() -> "TWO"));
         assertEquals("TWO", resultOfError.getOrElse(() -> "TWO"));
@@ -87,8 +87,8 @@ public class ResultTest {
         final Result<String> resultOf = Result.of("ONE");
         final Result<String> resultOfError = Result.ofError(new RuntimeException("Some Error"));
 
-        assertEquals("ONE", resultOf.getOrHandleError(t -> t.getMessage()));
-        assertEquals("Some Error", resultOfError.getOrHandleError(t -> t.getMessage()));
+        assertEquals("ONE", resultOf.get(t -> t.getMessage()));
+        assertEquals("Some Error", resultOfError.get(t -> t.getMessage()));
 
         assertEquals("ONE", resultOf.getOrThrowRuntime("Should not be thrown"));
         try {

src/test/java/ch/ethz/seb/sebserver/webservice/integration/api/admin/AdministrationAPIIntegrationTester.java

@@ -41,7 +41,7 @@ import org.springframework.web.context.WebApplicationContext;
 import com.fasterxml.jackson.core.type.TypeReference;
 
 import ch.ethz.seb.sebserver.SEBServer;
-import ch.ethz.seb.sebserver.gbl.JSONMapper;
+import ch.ethz.seb.sebserver.gbl.api.JSONMapper;
 
 @RunWith(SpringRunner.class)
 @SpringBootTest(

src/test/java/ch/ethz/seb/sebserver/webservice/integration/api/admin/InstitutionAPITest.java

@@ -19,11 +19,11 @@ import org.springframework.test.context.jdbc.Sql;
 
 import com.fasterxml.jackson.core.type.TypeReference;
 
-import ch.ethz.seb.sebserver.gbl.model.APIMessage;
+import ch.ethz.seb.sebserver.gbl.api.APIMessage;
+import ch.ethz.seb.sebserver.gbl.api.SEBServerRestEndpoints;
 import ch.ethz.seb.sebserver.gbl.model.EntityProcessingReport;
 import ch.ethz.seb.sebserver.gbl.model.Page;
 import ch.ethz.seb.sebserver.gbl.model.institution.Institution;
-import ch.ethz.seb.sebserver.webservice.weblayer.api.RestAPI;
 
 @Sql(scripts = { "classpath:schema-test.sql", "classpath:data-test.sql" })
 public class InstitutionAPITest extends AdministrationAPIIntegrationTester {
@@ -32,7 +32,7 @@ public class InstitutionAPITest extends AdministrationAPIIntegrationTester {
     public void getInstitutions() throws Exception {
         Page<Institution> institutions = new RestAPITestHelper()
                 .withAccessToken(getSebAdminAccess())
-                .withPath(RestAPI.ENDPOINT_INSTITUTION)
+                .withPath(SEBServerRestEndpoints.ENDPOINT_INSTITUTION)
                 .withExpectedStatus(HttpStatus.OK)
                 .getAsObject(new TypeReference<Page<Institution>>() {
                 });
@@ -44,7 +44,7 @@ public class InstitutionAPITest extends AdministrationAPIIntegrationTester {
 
         institutions = new RestAPITestHelper()
                 .withAccessToken(getSebAdminAccess())
-                .withPath(RestAPI.ENDPOINT_INSTITUTION)
+                .withPath(SEBServerRestEndpoints.ENDPOINT_INSTITUTION)
                 .withAttribute("active", "true")
                 .withExpectedStatus(HttpStatus.OK)
                 .getAsObject(new TypeReference<Page<Institution>>() {
@@ -57,7 +57,7 @@ public class InstitutionAPITest extends AdministrationAPIIntegrationTester {
 
         institutions = new RestAPITestHelper()
                 .withAccessToken(getSebAdminAccess())
-                .withPath(RestAPI.ENDPOINT_INSTITUTION)
+                .withPath(SEBServerRestEndpoints.ENDPOINT_INSTITUTION)
                 .withAttribute("active", "false")
                 .withExpectedStatus(HttpStatus.OK)
                 .getAsObject(new TypeReference<Page<Institution>>() {
@@ -70,7 +70,7 @@ public class InstitutionAPITest extends AdministrationAPIIntegrationTester {
         // institutional admin sees only his institution
         institutions = new RestAPITestHelper()
                 .withAccessToken(getAdminInstitution1Access())
-                .withPath(RestAPI.ENDPOINT_INSTITUTION)
+                .withPath(SEBServerRestEndpoints.ENDPOINT_INSTITUTION)
                 .withExpectedStatus(HttpStatus.OK)
                 .getAsObject(new TypeReference<Page<Institution>>() {
                 });
@@ -82,7 +82,7 @@ public class InstitutionAPITest extends AdministrationAPIIntegrationTester {
         // Institutional admin tries to get data from other institution
         final APIMessage errorMessage = new RestAPITestHelper()
                 .withAccessToken(getAdminInstitution1Access())
-                .withPath(RestAPI.ENDPOINT_INSTITUTION)
+                .withPath(SEBServerRestEndpoints.ENDPOINT_INSTITUTION)
                 .withAttribute("institutionId", "2") // try to hack
                 .withExpectedStatus(HttpStatus.FORBIDDEN)
                 .getAsObject(new TypeReference<APIMessage>() {
@@ -96,7 +96,7 @@ public class InstitutionAPITest extends AdministrationAPIIntegrationTester {
     public void getInstitutionById() throws Exception {
         Institution institution = new RestAPITestHelper()
                 .withAccessToken(getSebAdminAccess())
-                .withPath(RestAPI.ENDPOINT_INSTITUTION + "/1")
+                .withPath(SEBServerRestEndpoints.ENDPOINT_INSTITUTION + "/1")
                 .withExpectedStatus(HttpStatus.OK)
                 .getAsObject(new TypeReference<Institution>() {
                 });
@@ -107,7 +107,7 @@ public class InstitutionAPITest extends AdministrationAPIIntegrationTester {
         // a seb-admin is also able to get an institution that is not the one he self belongs to
         institution = new RestAPITestHelper()
                 .withAccessToken(getSebAdminAccess())
-                .withPath(RestAPI.ENDPOINT_INSTITUTION + "/2")
+                .withPath(SEBServerRestEndpoints.ENDPOINT_INSTITUTION + "/2")
                 .withExpectedStatus(HttpStatus.OK)
                 .getAsObject(new TypeReference<Institution>() {
                 });
@@ -118,7 +118,7 @@ public class InstitutionAPITest extends AdministrationAPIIntegrationTester {
         // but a institutional-admin is not able to get an institution that is not the one he self belongs to
         new RestAPITestHelper()
                 .withAccessToken(getAdminInstitution1Access())
-                .withPath(RestAPI.ENDPOINT_INSTITUTION + "/2")
+                .withPath(SEBServerRestEndpoints.ENDPOINT_INSTITUTION + "/2")
                 .withExpectedStatus(HttpStatus.FORBIDDEN)
                 .getAsString();
     }
@@ -128,7 +128,7 @@ public class InstitutionAPITest extends AdministrationAPIIntegrationTester {
         // create new institution with seb-admin
         Institution institution = new RestAPITestHelper()
                 .withAccessToken(getSebAdminAccess())
-                .withPath(RestAPI.ENDPOINT_INSTITUTION)
+                .withPath(SEBServerRestEndpoints.ENDPOINT_INSTITUTION)
                 .withMethod(HttpMethod.POST)
                 .withAttribute("name", "new institution")
                 .withAttribute("urlSuffix", "new_inst")
@@ -144,7 +144,7 @@ public class InstitutionAPITest extends AdministrationAPIIntegrationTester {
         // an institutional admin should not be allowed to create a new institution
         APIMessage errorMessage = new RestAPITestHelper()
                 .withAccessToken(getAdminInstitution1Access())
-                .withPath(RestAPI.ENDPOINT_INSTITUTION)
+                .withPath(SEBServerRestEndpoints.ENDPOINT_INSTITUTION)
                 .withMethod(HttpMethod.POST)
                 .withAttribute("name", "new institution")
                 .withAttribute("urlSuffix", "new_inst")
@@ -156,7 +156,7 @@ public class InstitutionAPITest extends AdministrationAPIIntegrationTester {
         // and name for institution must be unique
         errorMessage = new RestAPITestHelper()
                 .withAccessToken(getSebAdminAccess())
-                .withPath(RestAPI.ENDPOINT_INSTITUTION)
+                .withPath(SEBServerRestEndpoints.ENDPOINT_INSTITUTION)
                 .withMethod(HttpMethod.POST)
                 .withAttribute("name", "new institution")
                 .withAttribute("urlSuffix", "new_inst")
@@ -171,7 +171,7 @@ public class InstitutionAPITest extends AdministrationAPIIntegrationTester {
         // and predefined id should be ignored
         institution = new RestAPITestHelper()
                 .withAccessToken(getSebAdminAccess())
-                .withPath(RestAPI.ENDPOINT_INSTITUTION)
+                .withPath(SEBServerRestEndpoints.ENDPOINT_INSTITUTION)
                 .withMethod(HttpMethod.POST)
                 .withAttribute("id", "123")
                 .withAttribute("name", "newer institution")
@@ -191,7 +191,7 @@ public class InstitutionAPITest extends AdministrationAPIIntegrationTester {
         final String sebAdminAccess = getSebAdminAccess();
         Institution institution = new RestAPITestHelper()
                 .withAccessToken(sebAdminAccess)
-                .withPath(RestAPI.ENDPOINT_INSTITUTION)
+                .withPath(SEBServerRestEndpoints.ENDPOINT_INSTITUTION)
                 .withMethod(HttpMethod.POST)
                 .withAttribute("name", "testInstitution")
                 .withExpectedStatus(HttpStatus.OK)
@@ -205,7 +205,7 @@ public class InstitutionAPITest extends AdministrationAPIIntegrationTester {
         // get
         institution = new RestAPITestHelper()
                 .withAccessToken(sebAdminAccess)
-                .withPath(RestAPI.ENDPOINT_INSTITUTION).withPath("/").withPath(String.valueOf(institution.id))
+                .withPath(SEBServerRestEndpoints.ENDPOINT_INSTITUTION).withPath("/").withPath(String.valueOf(institution.id))
                 .withMethod(HttpMethod.GET)
                 .withExpectedStatus(HttpStatus.OK)
                 .getAsObject(new TypeReference<Institution>() {
@@ -219,7 +219,7 @@ public class InstitutionAPITest extends AdministrationAPIIntegrationTester {
         // modify
         institution = new RestAPITestHelper()
                 .withAccessToken(sebAdminAccess)
-                .withPath(RestAPI.ENDPOINT_INSTITUTION).withPath("/").withPath(String.valueOf(institution.id))
+                .withPath(SEBServerRestEndpoints.ENDPOINT_INSTITUTION).withPath("/").withPath(String.valueOf(institution.id))
                 .withMethod(HttpMethod.PUT)
                 .withBodyJson(new Institution(null, "testInstitution", "testSuffix", null, null))
                 .withExpectedStatus(HttpStatus.OK)
@@ -234,7 +234,7 @@ public class InstitutionAPITest extends AdministrationAPIIntegrationTester {
         // activate
         EntityProcessingReport report = new RestAPITestHelper()
                 .withAccessToken(sebAdminAccess)
-                .withPath(RestAPI.ENDPOINT_INSTITUTION)
+                .withPath(SEBServerRestEndpoints.ENDPOINT_INSTITUTION)
                 .withPath("/").withPath(String.valueOf(institution.id)).withPath("/active")
                 .withMethod(HttpMethod.POST)
                 .withExpectedStatus(HttpStatus.OK)
@@ -250,7 +250,7 @@ public class InstitutionAPITest extends AdministrationAPIIntegrationTester {
         // get
         institution = new RestAPITestHelper()
                 .withAccessToken(sebAdminAccess)
-                .withPath(RestAPI.ENDPOINT_INSTITUTION).withPath("/").withPath(String.valueOf(institution.id))
+                .withPath(SEBServerRestEndpoints.ENDPOINT_INSTITUTION).withPath("/").withPath(String.valueOf(institution.id))
                 .withMethod(HttpMethod.GET)
                 .withExpectedStatus(HttpStatus.OK)
                 .getAsObject(new TypeReference<Institution>() {
@@ -262,7 +262,7 @@ public class InstitutionAPITest extends AdministrationAPIIntegrationTester {
         // deactivate
         report = new RestAPITestHelper()
                 .withAccessToken(sebAdminAccess)
-                .withPath(RestAPI.ENDPOINT_INSTITUTION)
+                .withPath(SEBServerRestEndpoints.ENDPOINT_INSTITUTION)
                 .withPath("/").withPath(String.valueOf(institution.id)).withPath("/inactive")
                 .withMethod(HttpMethod.POST)
                 .withExpectedStatus(HttpStatus.OK)
@@ -278,7 +278,7 @@ public class InstitutionAPITest extends AdministrationAPIIntegrationTester {
         // get
         institution = new RestAPITestHelper()
                 .withAccessToken(sebAdminAccess)
-                .withPath(RestAPI.ENDPOINT_INSTITUTION).withPath("/").withPath(String.valueOf(institution.id))
+                .withPath(SEBServerRestEndpoints.ENDPOINT_INSTITUTION).withPath("/").withPath(String.valueOf(institution.id))
                 .withMethod(HttpMethod.GET)
                 .withExpectedStatus(HttpStatus.OK)
                 .getAsObject(new TypeReference<Institution>() {
@@ -290,7 +290,7 @@ public class InstitutionAPITest extends AdministrationAPIIntegrationTester {
         // delete
         report = new RestAPITestHelper()
                 .withAccessToken(sebAdminAccess)
-                .withPath(RestAPI.ENDPOINT_INSTITUTION)
+                .withPath(SEBServerRestEndpoints.ENDPOINT_INSTITUTION)
                 .withPath("/").withPath(String.valueOf(institution.id))
                 .withMethod(HttpMethod.DELETE)
                 .withExpectedStatus(HttpStatus.OK)
@@ -307,7 +307,7 @@ public class InstitutionAPITest extends AdministrationAPIIntegrationTester {
         // get
         final APIMessage error = new RestAPITestHelper()
                 .withAccessToken(sebAdminAccess)
-                .withPath(RestAPI.ENDPOINT_INSTITUTION).withPath("/").withPath(String.valueOf(institution.id))
+                .withPath(SEBServerRestEndpoints.ENDPOINT_INSTITUTION).withPath("/").withPath(String.valueOf(institution.id))
                 .withMethod(HttpMethod.GET)
                 .withExpectedStatus(HttpStatus.NOT_FOUND)
                 .getAsObject(new TypeReference<APIMessage>() {

src/test/java/ch/ethz/seb/sebserver/webservice/integration/api/admin/UserAPITest.java

@@ -31,11 +31,12 @@ import org.springframework.test.context.jdbc.Sql;
 import com.fasterxml.jackson.core.type.TypeReference;
 
 import ch.ethz.seb.sebserver.gbl.Constants;
-import ch.ethz.seb.sebserver.gbl.model.APIMessage;
+import ch.ethz.seb.sebserver.gbl.api.APIMessage;
+import ch.ethz.seb.sebserver.gbl.api.SEBServerRestEndpoints;
 import ch.ethz.seb.sebserver.gbl.model.Domain;
 import ch.ethz.seb.sebserver.gbl.model.Entity;
 import ch.ethz.seb.sebserver.gbl.model.EntityKey;
-import ch.ethz.seb.sebserver.gbl.model.EntityKeyAndName;
+import ch.ethz.seb.sebserver.gbl.model.EntityName;
 import ch.ethz.seb.sebserver.gbl.model.EntityProcessingReport;
 import ch.ethz.seb.sebserver.gbl.model.Page;
 import ch.ethz.seb.sebserver.gbl.model.user.UserActivityLog;
@@ -43,7 +44,6 @@ import ch.ethz.seb.sebserver.gbl.model.user.UserInfo;
 import ch.ethz.seb.sebserver.gbl.model.user.UserMod;
 import ch.ethz.seb.sebserver.gbl.model.user.UserRole;
 import ch.ethz.seb.sebserver.webservice.servicelayer.dao.UserActivityLogDAO.ActivityType;
-import ch.ethz.seb.sebserver.webservice.weblayer.api.RestAPI;
 
 @Sql(scripts = { "classpath:schema-test.sql", "classpath:data-test.sql" })
 public class UserAPITest extends AdministrationAPIIntegrationTester {
@@ -52,7 +52,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
     public void getMyUserInfo() throws Exception {
         String contentAsString = new RestAPITestHelper()
                 .withAccessToken(getSebAdminAccess())
-                .withPath(RestAPI.ENDPOINT_USER_ACCOUNT + "/me")
+                .withPath(SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/me")
                 .withExpectedStatus(HttpStatus.OK)
                 .getAsString();
 
@@ -70,7 +70,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
 
         contentAsString = new RestAPITestHelper()
                 .withAccessToken(getAdminInstitution1Access())
-                .withPath(RestAPI.ENDPOINT_USER_ACCOUNT + "/me")
+                .withPath(SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/me")
                 .withExpectedStatus(HttpStatus.OK)
                 .getAsString();
 
@@ -90,7 +90,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
     @Test
     public void getUserInfoWithUUID() throws Exception {
         final String sebAdminAccessToken = getSebAdminAccess();
-        String contentAsString = this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/user2")
+        String contentAsString = this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/user2")
                 .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                 .header("Authorization", "Bearer " + sebAdminAccessToken))
                 .andExpect(status().isOk())
@@ -109,7 +109,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
                 contentAsString);
 
         final String adminInstitution2AccessToken = getAdminInstitution2Access();
-        contentAsString = this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/user1")
+        contentAsString = this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/user1")
                 .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                 .header("Authorization", "Bearer " + adminInstitution2AccessToken))
                 .andExpect(status().isForbidden())
@@ -127,7 +127,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
     public void institutionalAdminNotAllowedToSeeUsersOfOtherInstitution() throws Exception {
         new RestAPITestHelper()
                 .withAccessToken(getAdminInstitution1Access())
-                .withPath(RestAPI.ENDPOINT_USER_ACCOUNT + "?institutionId=2")
+                .withPath(SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "?institutionId=2")
                 .withExpectedStatus(HttpStatus.FORBIDDEN)
                 .getAsString();
     }
@@ -136,7 +136,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
     public void getAllUserInfoNoFilter() throws Exception {
         Page<UserInfo> userInfos = new RestAPITestHelper()
                 .withAccessToken(getSebAdminAccess())
-                .withPath(RestAPI.ENDPOINT_USER_ACCOUNT)
+                .withPath(SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT)
                 .withExpectedStatus(HttpStatus.OK)
                 .getAsObject(new TypeReference<Page<UserInfo>>() {
                 });
@@ -150,7 +150,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
 
         userInfos = new RestAPITestHelper()
                 .withAccessToken(getAdminInstitution2Access())
-                .withPath(RestAPI.ENDPOINT_USER_ACCOUNT)
+                .withPath(SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT)
                 .withAttribute("institutionId", "2")
                 .withExpectedStatus(HttpStatus.OK)
                 .getAsObject(new TypeReference<Page<UserInfo>>() {
@@ -167,7 +167,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
         //.. and without inactive, if active flag is set to true
         userInfos = new RestAPITestHelper()
                 .withAccessToken(getAdminInstitution2Access())
-                .withPath(RestAPI.ENDPOINT_USER_ACCOUNT)
+                .withPath(SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT)
                 .withAttribute(Entity.FILTER_ATTR_INSTITUTION, "2")
                 .withAttribute(Entity.FILTER_ATTR_ACTIVE, "true")
                 .withExpectedStatus(HttpStatus.OK)
@@ -183,7 +183,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
         //.. and only inactive, if active flag is set to false
         userInfos = new RestAPITestHelper()
                 .withAccessToken(getAdminInstitution2Access())
-                .withPath(RestAPI.ENDPOINT_USER_ACCOUNT)
+                .withPath(SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT)
                 .withAttribute(Entity.FILTER_ATTR_INSTITUTION, "2")
                 .withAttribute(Entity.FILTER_ATTR_ACTIVE, "false")
                 .withExpectedStatus(HttpStatus.OK)
@@ -203,7 +203,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
 
         final String token = getSebAdminAccess();
         final Page<UserInfo> userInfos = this.jsonMapper.readValue(
-                this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT)
+                this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT)
                         .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                         .header("Authorization", "Bearer " + token))
                         .andExpect(status().isOk())
@@ -225,7 +225,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
 
         final String token = getSebAdminAccess();
         final Page<UserInfo> userInfos = this.jsonMapper.readValue(
-                this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "?institutionId=2")
+                this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "?institutionId=2")
                         .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                         .header("Authorization", "Bearer " + token))
                         .andExpect(status().isOk())
@@ -244,7 +244,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
     public void getPageNoFilterNoPageAttributesDescendingOrder() throws Exception {
         final String token = getSebAdminAccess();
         final Page<UserInfo> userInfos = this.jsonMapper.readValue(
-                this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "?sort=-")
+                this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "?sort=-")
                         .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                         .header("Authorization", "Bearer " + token))
                         .andExpect(status().isOk())
@@ -266,7 +266,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
         // first page default sort order
         Page<UserInfo> userInfos = this.jsonMapper.readValue(
                 this.mockMvc
-                        .perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT
+                        .perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT
                                 + "?page_number=1&page_size=3&institutionId=2")
                                         .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                                         .header("Authorization", "Bearer " + token))
@@ -284,7 +284,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
         // second page default sort order
         userInfos = this.jsonMapper.readValue(
                 this.mockMvc
-                        .perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT
+                        .perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT
                                 + "?page_number=2&page_size=3&institutionId=2")
                                         .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                                         .header("Authorization", "Bearer " + token))
@@ -303,7 +303,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
         // invalid page number should refer to last page
         userInfos = this.jsonMapper.readValue(
                 this.mockMvc
-                        .perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT
+                        .perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT
                                 + "?page_number=3&page_size=3&institutionId=2")
                                         .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                                         .header("Authorization", "Bearer " + token))
@@ -322,7 +322,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
         // first page descending sort order
         userInfos = this.jsonMapper.readValue(
                 this.mockMvc
-                        .perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT
+                        .perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT
                                 + "?page_number=1&page_size=3&sort=-&institutionId=2")
                                         .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                                         .header("Authorization", "Bearer " + token))
@@ -350,7 +350,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
     public void getAllUserInfo() throws Exception {
         final String token = getSebAdminAccess();
         final Page<UserInfo> userInfos = this.jsonMapper.readValue(
-                this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT)
+                this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT)
                         .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                         .header("Authorization", "Bearer " + token))
                         .andExpect(status().isOk())
@@ -366,7 +366,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
     public void getAllUserInfoWithOnlyActive() throws Exception {
         final String token = getSebAdminAccess();
         final Page<UserInfo> userInfos = this.jsonMapper.readValue(
-                this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "?active=true&institutionId=2")
+                this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "?active=true&institutionId=2")
                         .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                         .header("Authorization", "Bearer " + token))
                         .andExpect(status().isOk())
@@ -385,7 +385,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
         // expecting none for SEBAdmins institution
         final String token = getSebAdminAccess();
         Page<UserInfo> userInfos = this.jsonMapper.readValue(
-                this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "?active=false")
+                this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "?active=false")
                         .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                         .header("Authorization", "Bearer " + token))
                         .andExpect(status().isOk())
@@ -399,7 +399,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
         // expecting one for institution 2
         userInfos = this.jsonMapper.readValue(
                 this.mockMvc
-                        .perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "?active=false&institutionId=2")
+                        .perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "?active=false&institutionId=2")
                                 .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                                 .header("Authorization", "Bearer " + token))
                         .andExpect(status().isOk())
@@ -416,7 +416,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
     public void getAllUserInfoWithSearchUsernameLike() throws Exception {
         final String token = getSebAdminAccess();
         final Page<UserInfo> userInfos = this.jsonMapper.readValue(
-                this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "?username=exam")
+                this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "?username=exam")
                         .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                         .header("Authorization", "Bearer " + token))
                         .andExpect(status().isOk())
@@ -432,7 +432,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
     @Test
     public void testOwnerGet() throws Exception {
         final String examAdminToken1 = getExamAdmin1();
-        this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/me")
+        this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/me")
                 .header("Authorization", "Bearer " + examAdminToken1))
                 .andExpect(status().isOk())
                 .andReturn().getResponse().getContentAsString();
@@ -442,7 +442,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
     public void createUserTest() throws Exception {
         final String token = getSebAdminAccess();
         final UserInfo createdUser = this.jsonMapper.readValue(
-                this.mockMvc.perform(post(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT)
+                this.mockMvc.perform(post(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT)
                         .header("Authorization", "Bearer " + token)
                         .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                         .param(Domain.USER.ATTR_NAME, "NewTestUser")
@@ -461,7 +461,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
 
         // get newly created user and check equality
         final UserInfo createdUserGet = this.jsonMapper.readValue(
-                this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/" + createdUser.uuid)
+                this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/" + createdUser.uuid)
                         .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                         .header("Authorization", "Bearer " + token))
                         .andExpect(status().isOk())
@@ -477,7 +477,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
         final Page<UserActivityLog> logs = this.jsonMapper.readValue(
                 this.mockMvc
                         .perform(
-                                get(this.endpoint + RestAPI.ENDPOINT_USER_ACTIVITY_LOG
+                                get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACTIVITY_LOG
                                         + "?user=user1&activity_types=CREATE")
                                                 .header("Authorization", "Bearer " + token))
                         .andExpect(status().isOk())
@@ -557,7 +557,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
     public void modifyUserWithPUTMethod() throws Exception {
         final String token = getSebAdminAccess();
         final UserInfo user = this.jsonMapper.readValue(
-                this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/user7")
+                this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/user7")
                         .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                         .header("Authorization", "Bearer " + token))
                         .andExpect(status().isOk())
@@ -586,7 +586,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
         final String modifyUserJson = this.jsonMapper.writeValueAsString(modifyUser);
 
         UserInfo modifiedUserResult = this.jsonMapper.readValue(
-                this.mockMvc.perform(put(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/" + user.getUuid())
+                this.mockMvc.perform(put(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/" + user.getUuid())
                         .header("Authorization", "Bearer " + token)
                         .contentType(MediaType.APPLICATION_JSON_UTF8)
                         .content(modifyUserJson))
@@ -604,7 +604,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
 
         // double check by getting the user by UUID
         modifiedUserResult = this.jsonMapper.readValue(
-                this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/" + modifiedUserResult.uuid)
+                this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/" + modifiedUserResult.uuid)
                         .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                         .header("Authorization", "Bearer " + token))
                         .andExpect(status().isOk())
@@ -657,7 +657,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
     public void testOwnerModifyPossibleForExamAdmin() throws Exception {
         final String examAdminToken1 = getExamAdmin1();
         final UserInfo examAdmin = this.jsonMapper.readValue(
-                this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/me")
+                this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/me")
                         .header("Authorization", "Bearer " + examAdminToken1))
                         .andExpect(status().isOk())
                         .andReturn().getResponse().getContentAsString(),
@@ -667,7 +667,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
         final UserMod modifiedUser = new UserMod(examAdmin, null, null);
         final String modifiedUserJson = this.jsonMapper.writeValueAsString(modifiedUser);
 
-        this.mockMvc.perform(put(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/" + modifiedUser.uuid)
+        this.mockMvc.perform(put(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/" + modifiedUser.uuid)
                 .header("Authorization", "Bearer " + examAdminToken1)
                 .contentType(MediaType.APPLICATION_JSON_UTF8)
                 .content(modifiedUserJson))
@@ -679,7 +679,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
     public void institutionalAdminTryToCreateOrModifyUserForOtherInstituionNotPossible() throws Exception {
 
         final String token = getAdminInstitution1Access();
-        this.mockMvc.perform(post(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT)
+        this.mockMvc.perform(post(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT)
                 .header("Authorization", "Bearer " + token)
                 .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                 .param(Domain.USER.ATTR_INSTITUTION_ID, "2")
@@ -695,7 +695,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
                 new HashSet<>(Arrays.asList(UserRole.EXAM_ADMIN.name())));
         final UserMod newUser = new UserMod(userInfo, "12345678", "12345678");
         final String newUserJson = this.jsonMapper.writeValueAsString(newUser);
-        this.mockMvc.perform(put(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/NewTestUser")
+        this.mockMvc.perform(put(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/NewTestUser")
                 .header("Authorization", "Bearer " + token)
                 .contentType(MediaType.APPLICATION_JSON_UTF8)
                 .content(newUserJson))
@@ -707,7 +707,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
     public void unauthorizedAdminTryToCreateUserNotPossible() throws Exception {
 
         final String token = getExamAdmin1();
-        this.mockMvc.perform(post(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT)
+        this.mockMvc.perform(post(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT)
                 .header("Authorization", "Bearer " + token)
                 .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                 .param(Domain.USER.ATTR_INSTITUTION_ID, "2")
@@ -723,7 +723,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
                 new HashSet<>(Arrays.asList(UserRole.EXAM_ADMIN.name())));
         final UserMod newUser = new UserMod(userInfo, "12345678", "12345678");
         final String newUserJson = this.jsonMapper.writeValueAsString(newUser);
-        this.mockMvc.perform(put(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/NewTestUser")
+        this.mockMvc.perform(put(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/NewTestUser")
                 .header("Authorization", "Bearer " + token)
                 .contentType(MediaType.APPLICATION_JSON_UTF8)
                 .content(newUserJson))
@@ -739,7 +739,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
         // a SEB Server Admin now changes the password of ExamAdmin1
         final String sebAdminToken = getSebAdminAccess();
         final UserInfo examAdmin1 = this.jsonMapper.readValue(
-                this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/user4")
+                this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/user4")
                         .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                         .header("Authorization", "Bearer " + sebAdminToken))
                         .andExpect(status().isOk())
@@ -753,7 +753,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
                 "newPassword");
         final String modifiedUserJson = this.jsonMapper.writeValueAsString(modifiedUser);
 
-        this.mockMvc.perform(put(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/" + modifiedUser.uuid)
+        this.mockMvc.perform(put(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/" + modifiedUser.uuid)
                 .header("Authorization", "Bearer " + sebAdminToken)
                 .contentType(MediaType.APPLICATION_JSON_UTF8)
                 .content(modifiedUserJson))
@@ -769,14 +769,14 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
         }
 
         // it should also not be possible to use an old token again after password change
-        this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/me")
+        this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/me")
                 .header("Authorization", "Bearer " + examAdminToken1))
                 .andExpect(status().isUnauthorized())
                 .andReturn().getResponse().getContentAsString();
 
         // but it should be possible to get a new access token and request again
         final String examAdminToken2 = obtainAccessToken("examAdmin1", "newPassword");
-        this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/me")
+        this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/me")
                 .header("Authorization", "Bearer " + examAdminToken2))
                 .andExpect(status().isOk())
                 .andReturn().getResponse().getContentAsString();
@@ -786,7 +786,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
     public void modifyUserPasswordInvalidPasswords() throws Exception {
         final String sebAdminToken = getSebAdminAccess();
         final UserInfo examAdmin1 = this.jsonMapper.readValue(
-                this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/user4")
+                this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/user4")
                         .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                         .header("Authorization", "Bearer " + sebAdminToken))
                         .andExpect(status().isOk())
@@ -802,7 +802,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
         String modifiedUserJson = this.jsonMapper.writeValueAsString(modifiedUser);
 
         List<APIMessage> messages = this.jsonMapper.readValue(
-                this.mockMvc.perform(put(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/" + modifiedUser.uuid)
+                this.mockMvc.perform(put(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/" + modifiedUser.uuid)
                         .header("Authorization", "Bearer " + sebAdminToken)
                         .contentType(MediaType.APPLICATION_JSON_UTF8)
                         .content(modifiedUserJson))
@@ -824,7 +824,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
         modifiedUserJson = this.jsonMapper.writeValueAsString(modifiedUser);
 
         messages = this.jsonMapper.readValue(
-                this.mockMvc.perform(put(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/" + modifiedUser.uuid)
+                this.mockMvc.perform(put(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/" + modifiedUser.uuid)
                         .header("Authorization", "Bearer " + sebAdminToken)
                         .contentType(MediaType.APPLICATION_JSON_UTF8)
                         .content(modifiedUserJson))
@@ -843,7 +843,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
         final String timeNow = DateTime.now(DateTimeZone.UTC).toString(Constants.DATE_TIME_PATTERN_UTC_NO_MILLIS);
         // only a SEB Administrator or an Institutional administrator should be able to deactivate a user-account
         final String examAdminToken = getExamAdmin1();
-        this.mockMvc.perform(post(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/user4/inactive")
+        this.mockMvc.perform(post(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/user4/inactive")
                 .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                 .header("Authorization", "Bearer " + examAdminToken))
                 .andExpect(status().isForbidden());
@@ -851,7 +851,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
         // With SEB Administrator it should work
         final String sebAdminToken = getSebAdminAccess();
         final EntityProcessingReport report = this.jsonMapper.readValue(
-                this.mockMvc.perform(post(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/user4/inactive")
+                this.mockMvc.perform(post(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/user4/inactive")
                         .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                         .header("Authorization", "Bearer " + sebAdminToken))
                         .andExpect(status().isOk())
@@ -868,7 +868,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
         // get user and check activity
         final EntityKey key = report.source.iterator().next();
         final UserInfo user = this.jsonMapper.readValue(
-                this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/" + key.modelId)
+                this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/" + key.modelId)
                         .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                         .header("Authorization", "Bearer " + sebAdminToken))
                         .andExpect(status().isOk())
@@ -883,7 +883,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
         final Page<UserActivityLog> userLogs = this.jsonMapper.readValue(
                 this.mockMvc
                         .perform(
-                                get(this.endpoint + RestAPI.ENDPOINT_USER_ACTIVITY_LOG + "/?user=user1&from=" + timeNow)
+                                get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACTIVITY_LOG + "/?user=user1&from=" + timeNow)
                                         .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                                         .header("Authorization", "Bearer " + sebAdminToken))
                         .andExpect(status().isOk())
@@ -903,7 +903,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
         final String timeNow = DateTime.now(DateTimeZone.UTC).toString(Constants.DATE_TIME_PATTERN_UTC_NO_MILLIS);
         // only a SEB Administrator or an Institutional administrator should be able to deactivate a user-account
         final String examAdminToken = getExamAdmin1();
-        this.mockMvc.perform(post(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/user6/active")
+        this.mockMvc.perform(post(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/user6/active")
                 .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                 .header("Authorization", "Bearer " + examAdminToken))
                 .andExpect(status().isForbidden());
@@ -911,7 +911,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
         // With SEB Administrator it should work
         final String sebAdminToken = getSebAdminAccess();
         final EntityProcessingReport report = this.jsonMapper.readValue(
-                this.mockMvc.perform(post(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/user6/active")
+                this.mockMvc.perform(post(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/user6/active")
                         .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                         .header("Authorization", "Bearer " + sebAdminToken))
                         .andExpect(status().isOk())
@@ -928,7 +928,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
         // get user and check activity
         final EntityKey key = report.source.iterator().next();
         final UserInfo user = this.jsonMapper.readValue(
-                this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/" + key.modelId)
+                this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/" + key.modelId)
                         .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                         .header("Authorization", "Bearer " + sebAdminToken))
                         .andExpect(status().isOk())
@@ -942,7 +942,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
         // check also user activity log
         final Page<UserActivityLog> userLogs = this.jsonMapper.readValue(
                 this.mockMvc
-                        .perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACTIVITY_LOG + "?user=user1&from=" + timeNow)
+                        .perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACTIVITY_LOG + "?user=user1&from=" + timeNow)
                                 .header("Authorization", "Bearer " + sebAdminToken))
                         .andExpect(status().isOk())
                         .andReturn().getResponse().getContentAsString(),
@@ -962,7 +962,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
 
         // all active for the own institution
         Page<UserInfo> usersPage = this.jsonMapper.readValue(
-                this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/all/active")
+                this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/all/active")
                         .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                         .header("Authorization", "Bearer " + sebAdminToken))
                         .andExpect(status().isOk())
@@ -976,7 +976,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
 
         // all inactive of the own institution
         usersPage = this.jsonMapper.readValue(
-                this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/all/inactive")
+                this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/all/inactive")
                         .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                         .header("Authorization", "Bearer " + sebAdminToken))
                         .andExpect(status().isOk())
@@ -990,7 +990,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
 
         // all active of institution 2
         usersPage = this.jsonMapper.readValue(
-                this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/all/active?institutionId=2")
+                this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/all/active?institutionId=2")
                         .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                         .header("Authorization", "Bearer " + sebAdminToken))
                         .andExpect(status().isOk())
@@ -1005,7 +1005,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
         // all inactive of institution 2
         usersPage = this.jsonMapper.readValue(
                 this.mockMvc
-                        .perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/all/inactive?institutionId=2")
+                        .perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/all/inactive?institutionId=2")
                                 .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                                 .header("Authorization", "Bearer " + sebAdminToken))
                         .andExpect(status().isOk())
@@ -1026,7 +1026,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
         Collection<UserInfo> users = this.jsonMapper.readValue(
                 this.mockMvc
                         .perform(
-                                get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/list?ids=user1,user2,user6,user7")
+                                get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/list?ids=user1,user2,user6,user7")
                                         .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                                         .header("Authorization", "Bearer " + sebAdminToken))
                         .andExpect(status().isOk())
@@ -1043,7 +1043,7 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
         users = this.jsonMapper.readValue(
                 this.mockMvc
                         .perform(
-                                get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/list?ids=user1,user2,user6,user7")
+                                get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/list?ids=user1,user2,user6,user7")
                                         .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                                         .header("Authorization", "Bearer " + instAdminToken))
                         .andExpect(status().isOk())
@@ -1061,14 +1061,14 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
         final String sebAdminToken = getSebAdminAccess();
 
         // for SEB Admin
-        Collection<EntityKeyAndName> names = this.jsonMapper.readValue(
+        Collection<EntityName> names = this.jsonMapper.readValue(
                 this.mockMvc
-                        .perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/names")
+                        .perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/names")
                                 .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                                 .header("Authorization", "Bearer " + sebAdminToken))
                         .andExpect(status().isOk())
                         .andReturn().getResponse().getContentAsString(),
-                new TypeReference<Collection<EntityKeyAndName>>() {
+                new TypeReference<Collection<EntityName>>() {
                 });
 
         assertNotNull(names);
@@ -1081,12 +1081,12 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
         final String instAdminToken = getAdminInstitution2Access();
         names = this.jsonMapper.readValue(
                 this.mockMvc
-                        .perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/names")
+                        .perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/names")
                                 .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                                 .header("Authorization", "Bearer " + instAdminToken))
                         .andExpect(status().isOk())
                         .andReturn().getResponse().getContentAsString(),
-                new TypeReference<Collection<EntityKeyAndName>>() {
+                new TypeReference<Collection<EntityName>>() {
                 });
 
         assertNotNull(names);
@@ -1099,12 +1099,12 @@ public class UserAPITest extends AdministrationAPIIntegrationTester {
         // for an institutional admin 2 only active
         names = this.jsonMapper.readValue(
                 this.mockMvc
-                        .perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACCOUNT + "/names?active=true")
+                        .perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACCOUNT + "/names?active=true")
                                 .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                                 .header("Authorization", "Bearer " + instAdminToken))
                         .andExpect(status().isOk())
                         .andReturn().getResponse().getContentAsString(),
-                new TypeReference<Collection<EntityKeyAndName>>() {
+                new TypeReference<Collection<EntityName>>() {
                 });
 
         assertNotNull(names);

src/test/java/ch/ethz/seb/sebserver/webservice/integration/api/admin/UserActivityLogAPITest.java

@@ -19,9 +19,9 @@ import org.springframework.test.context.jdbc.Sql;
 import com.fasterxml.jackson.core.type.TypeReference;
 
 import ch.ethz.seb.sebserver.gbl.Constants;
+import ch.ethz.seb.sebserver.gbl.api.SEBServerRestEndpoints;
 import ch.ethz.seb.sebserver.gbl.model.Page;
 import ch.ethz.seb.sebserver.gbl.model.user.UserActivityLog;
-import ch.ethz.seb.sebserver.webservice.weblayer.api.RestAPI;
 
 @Sql(scripts = { "classpath:schema-test.sql", "classpath:data-test.sql" })
 public class UserActivityLogAPITest extends AdministrationAPIIntegrationTester {
@@ -30,7 +30,7 @@ public class UserActivityLogAPITest extends AdministrationAPIIntegrationTester {
     public void getAllAsSEBAdmin() throws Exception {
         final String token = getSebAdminAccess();
         final Page<UserActivityLog> logs = this.jsonMapper.readValue(
-                this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACTIVITY_LOG)
+                this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACTIVITY_LOG)
                         .header("Authorization", "Bearer " + token))
                         .andExpect(status().isOk())
                         .andReturn().getResponse().getContentAsString(),
@@ -47,7 +47,7 @@ public class UserActivityLogAPITest extends AdministrationAPIIntegrationTester {
         // for a user in another institution, the institution has to be defined
         Page<UserActivityLog> logs = this.jsonMapper.readValue(
                 this.mockMvc
-                        .perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACTIVITY_LOG + "?user=user4&institutionId=2")
+                        .perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACTIVITY_LOG + "?user=user4&institutionId=2")
                                 .header("Authorization", "Bearer " + token))
                         .andExpect(status().isOk())
                         .andReturn().getResponse().getContentAsString(),
@@ -59,7 +59,7 @@ public class UserActivityLogAPITest extends AdministrationAPIIntegrationTester {
 
         // for a user in the same institution no institution is needed
         logs = this.jsonMapper.readValue(
-                this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACTIVITY_LOG + "?user=user2")
+                this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACTIVITY_LOG + "?user=user2")
                         .header("Authorization", "Bearer " + token))
                         .andExpect(status().isOk())
                         .andReturn().getResponse().getContentAsString(),
@@ -82,7 +82,7 @@ public class UserActivityLogAPITest extends AdministrationAPIIntegrationTester {
         final String token = getSebAdminAccess();
         Page<UserActivityLog> logs = this.jsonMapper.readValue(
                 this.mockMvc.perform(
-                        get(this.endpoint + RestAPI.ENDPOINT_USER_ACTIVITY_LOG + "?institutionId=2&from=" + sec2)
+                        get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACTIVITY_LOG + "?institutionId=2&from=" + sec2)
                                 .header("Authorization", "Bearer " + token))
                         .andExpect(status().isOk())
                         .andReturn().getResponse().getContentAsString(),
@@ -94,7 +94,7 @@ public class UserActivityLogAPITest extends AdministrationAPIIntegrationTester {
 
         logs = this.jsonMapper.readValue(
                 this.mockMvc
-                        .perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACTIVITY_LOG + "?institutionId=2&from="
+                        .perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACTIVITY_LOG + "?institutionId=2&from="
                                 + sec2 + "&to=" + sec4)
                                         .header("Authorization", "Bearer " + token))
                         .andExpect(status().isOk())
@@ -108,7 +108,7 @@ public class UserActivityLogAPITest extends AdministrationAPIIntegrationTester {
         logs = this.jsonMapper.readValue(
                 this.mockMvc
                         .perform(
-                                get(this.endpoint + RestAPI.ENDPOINT_USER_ACTIVITY_LOG + "?institutionId=2&from=" + sec2
+                                get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACTIVITY_LOG + "?institutionId=2&from=" + sec2
                                         + "&to=" + sec5)
                                                 .header("Authorization", "Bearer " + token))
                         .andExpect(status().isOk())
@@ -122,7 +122,7 @@ public class UserActivityLogAPITest extends AdministrationAPIIntegrationTester {
         logs = this.jsonMapper.readValue(
                 this.mockMvc
                         .perform(
-                                get(this.endpoint + RestAPI.ENDPOINT_USER_ACTIVITY_LOG + "?institutionId=2&from=" + sec2
+                                get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACTIVITY_LOG + "?institutionId=2&from=" + sec2
                                         + "&to=" + sec6)
                                                 .header("Authorization", "Bearer " + token))
                         .andExpect(status().isOk())
@@ -138,7 +138,7 @@ public class UserActivityLogAPITest extends AdministrationAPIIntegrationTester {
     public void getAllAsSEBAdminForActivityType() throws Exception {
         final String token = getSebAdminAccess();
         Page<UserActivityLog> logs = this.jsonMapper.readValue(
-                this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACTIVITY_LOG + "?activity_types=CREATE")
+                this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACTIVITY_LOG + "?activity_types=CREATE")
                         .header("Authorization", "Bearer " + token))
                         .andExpect(status().isOk())
                         .andReturn().getResponse().getContentAsString(),
@@ -151,7 +151,7 @@ public class UserActivityLogAPITest extends AdministrationAPIIntegrationTester {
         logs = this.jsonMapper.readValue(
                 this.mockMvc
                         .perform(
-                                get(this.endpoint + RestAPI.ENDPOINT_USER_ACTIVITY_LOG
+                                get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACTIVITY_LOG
                                         + "?activity_types=CREATE,MODIFY")
                                                 .header("Authorization", "Bearer " + token))
                         .andExpect(status().isOk())
@@ -166,7 +166,7 @@ public class UserActivityLogAPITest extends AdministrationAPIIntegrationTester {
         logs = this.jsonMapper.readValue(
                 this.mockMvc
                         .perform(
-                                get(this.endpoint + RestAPI.ENDPOINT_USER_ACTIVITY_LOG
+                                get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACTIVITY_LOG
                                         + "?institutionId=2&activity_types=CREATE,MODIFY")
                                                 .header("Authorization", "Bearer " + token))
                         .andExpect(status().isOk())
@@ -183,7 +183,7 @@ public class UserActivityLogAPITest extends AdministrationAPIIntegrationTester {
         final String token = getSebAdminAccess();
         Page<UserActivityLog> logs = this.jsonMapper.readValue(
                 this.mockMvc
-                        .perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACTIVITY_LOG + "?entity_types=INSTITUTION")
+                        .perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACTIVITY_LOG + "?entity_types=INSTITUTION")
                                 .header("Authorization", "Bearer " + token))
                         .andExpect(status().isOk())
                         .andReturn().getResponse().getContentAsString(),
@@ -196,7 +196,7 @@ public class UserActivityLogAPITest extends AdministrationAPIIntegrationTester {
         logs = this.jsonMapper.readValue(
                 this.mockMvc
                         .perform(
-                                get(this.endpoint + RestAPI.ENDPOINT_USER_ACTIVITY_LOG
+                                get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACTIVITY_LOG
                                         + "?entity_types=INSTITUTION,EXAM")
                                                 .header("Authorization", "Bearer " + token))
                         .andExpect(status().isOk())
@@ -210,7 +210,7 @@ public class UserActivityLogAPITest extends AdministrationAPIIntegrationTester {
         logs = this.jsonMapper.readValue(
                 this.mockMvc
                         .perform(
-                                get(this.endpoint + RestAPI.ENDPOINT_USER_ACTIVITY_LOG
+                                get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACTIVITY_LOG
                                         + "?entity_types=INSTITUTION,EXAM&institutionId=2")
                                                 .header("Authorization", "Bearer " + token))
                         .andExpect(status().isOk())
@@ -226,7 +226,7 @@ public class UserActivityLogAPITest extends AdministrationAPIIntegrationTester {
     public void getAllAsInstitutionalAdmin() throws Exception {
         final String token = getAdminInstitution1Access();
         final Page<UserActivityLog> logs = this.jsonMapper.readValue(
-                this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACTIVITY_LOG)
+                this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACTIVITY_LOG)
                         .header("Authorization", "Bearer " + token))
                         .andExpect(status().isOk())
                         .andReturn().getResponse().getContentAsString(),
@@ -242,18 +242,18 @@ public class UserActivityLogAPITest extends AdministrationAPIIntegrationTester {
         String token = getExamAdmin1();
 
         // no privilege at all
-        this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACTIVITY_LOG)
+        this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACTIVITY_LOG)
                 .header("Authorization", "Bearer " + token))
                 .andExpect(status().isForbidden());
         // no privilege at all
-        this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACTIVITY_LOG + "?user=user4")
+        this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACTIVITY_LOG + "?user=user4")
                 .header("Authorization", "Bearer " + token))
                 .andExpect(status().isForbidden());
 
         // no privilege to query logs of users of other institution
         token = getAdminInstitution1Access();
         final Page<UserActivityLog> logs = this.jsonMapper.readValue(
-                this.mockMvc.perform(get(this.endpoint + RestAPI.ENDPOINT_USER_ACTIVITY_LOG + "?user=user4")
+                this.mockMvc.perform(get(this.endpoint + SEBServerRestEndpoints.ENDPOINT_USER_ACTIVITY_LOG + "?user=user4")
                         .header("Authorization", "Bearer " + token))
                         .andExpect(status().isOk())
                         .andReturn().getResponse().getContentAsString(),

src/test/java/ch/ethz/seb/sebserver/webservice/integration/api/exam/ExamAPIIntegrationTester.java

@@ -31,7 +31,7 @@ import org.springframework.util.MultiValueMap;
 import org.springframework.web.context.WebApplicationContext;
 
 import ch.ethz.seb.sebserver.SEBServer;
-import ch.ethz.seb.sebserver.gbl.JSONMapper;
+import ch.ethz.seb.sebserver.gbl.api.JSONMapper;
 
 @RunWith(SpringRunner.class)
 @SpringBootTest(