added better error notification for timeouts, and work with longer

request timout limits

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

@@ -76,7 +76,7 @@ public class ClientHttpRequestFactoryService {
             final ClientCredentialService clientCredentialService,
             @Value("${sebserver.http.client.connect-timeout:15000}") final int connectTimeout,
             @Value("${sebserver.http.client.connection-request-timeout:20000}") final int connectionRequestTimeout,
-            @Value("${sebserver.http.client.read-timeout:10000}") final int readTimeout) {
+            @Value("${sebserver.http.client.read-timeout:60000}") final int readTimeout) {
 
         this.environment = environment;
         this.clientCredentialService = clientCredentialService;

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

@@ -281,6 +281,10 @@ public interface PageContext {
      *
      * @param error the original error */
     default void notifyUnexpectedError(final Exception error) {
+        if (error instanceof PageMessageException) {
+            publishInfo(((PageMessageException) error).getMessageKey());
+            return;
+        }
         notifyError(UNEXPECTED_ERROR_KEY, error);
     }
 

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

@@ -28,6 +28,7 @@ import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.util.LinkedMultiValueMap;
 import org.springframework.util.MultiValueMap;
+import org.springframework.web.client.ResourceAccessException;
 import org.springframework.web.client.RestClientResponseException;
 import org.springframework.web.client.RestTemplate;
 import org.springframework.web.util.UriComponentsBuilder;
@@ -46,11 +47,15 @@ import ch.ethz.seb.sebserver.gbl.model.Page;
 import ch.ethz.seb.sebserver.gbl.model.PageSortOrder;
 import ch.ethz.seb.sebserver.gbl.util.Result;
 import ch.ethz.seb.sebserver.gbl.util.Utils;
+import ch.ethz.seb.sebserver.gui.service.i18n.LocTextKey;
+import ch.ethz.seb.sebserver.gui.service.page.PageMessageException;
 
 public abstract class RestCall<T> {
 
     private static final Logger log = LoggerFactory.getLogger(RestCall.class);
 
+    public static final LocTextKey REQUEST_TIMEOUT_MESSAGE = new LocTextKey("sebserver.overall.message.requesttimeout");
+
     public enum CallType {
         UNDEFINED,
         GET_SINGLE,
@@ -161,6 +166,11 @@ public abstract class RestCall<T> {
             }
 
             return Result.ofError(restCallError);
+        } catch (final ResourceAccessException rae) {
+            if (rae.getMessage().contains("Read timed out")) {
+                return Result.ofError(new PageMessageException(REQUEST_TIMEOUT_MESSAGE));
+            }
+            return Result.ofError(rae);
         } catch (final Exception e) {
             final RestCallError restCallError = new RestCallError("Unexpected error while rest call", e);
             restCallError.errors.add(APIMessage.ErrorMessage.UNEXPECTED.of(

src/main/resources/config/application-gui.properties

@@ -23,6 +23,11 @@ sebserver.gui.http.webservice.port=8080
 sebserver.gui.http.webservice.contextPath=${server.servlet.context-path}
 sebserver.gui.entrypoint=/gui
 
+
+sebserver.http.client.connect-timeout=60000
+sebserver.http.client.connection-request-timeout=100000
+sebserver.http.client.read-timeout=200000
+
 sebserver.gui.webservice.apipath=${sebserver.webservice.api.admin.endpoint}
 # defines the polling interval that is used to poll the webservice for client connection data on a monitored exam page
 sebserver.gui.webservice.poll-interval=2000

src/main/resources/messages.properties

@@ -9,6 +9,7 @@ sebserver.overall.help=Documentation
 sebserver.overall.help.link=https://seb-server.readthedocs.io/en/latest/index.html
 
 sebserver.overall.message.leave.without.save=You have unsaved changes!<br/>Are you sure you want to leave the page? The changes will be lost.
+sebserver.overall.message.requesttimeout=There was a request timeout. If this is a search please try to narrow down your search by using the filter above and try again.
 sebserver.overall.upload=Please select a file
 sebserver.overall.upload.unsupported.file=This file type is not supported. Supported files are: {0}
 sebserver.overall.action.modify.cancel=Cancel