83 lines
2 KiB
C#
83 lines
2 KiB
C#
/*
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* Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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using System;
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using SafeExamBrowser.Contracts.Behaviour.Operations;
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using SafeExamBrowser.Contracts.Communication;
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using SafeExamBrowser.Contracts.I18n;
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using SafeExamBrowser.Contracts.Logging;
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using SafeExamBrowser.Contracts.UserInterface;
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namespace SafeExamBrowser.Client.Behaviour.Operations
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{
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internal class RuntimeConnectionOperation : IOperation
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{
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private bool connected;
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private ILogger logger;
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private IRuntimeProxy runtime;
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private Guid token;
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public IProgressIndicator ProgressIndicator { private get; set; }
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public RuntimeConnectionOperation(ILogger logger, IRuntimeProxy runtime, Guid token)
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{
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this.logger = logger;
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this.runtime = runtime;
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this.token = token;
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}
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public OperationResult Perform()
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{
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logger.Info("Initializing runtime connection...");
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ProgressIndicator?.UpdateText(TextKey.ProgressIndicator_InitializeRuntimeConnection);
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try
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{
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connected = runtime.Connect(token);
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}
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catch (Exception e)
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{
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logger.Error("An unexpected error occurred while trying to connect to the runtime!", e);
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}
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if (!connected)
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{
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logger.Error("Failed to connect to the runtime. Aborting startup...");
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return OperationResult.Failed;
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}
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logger.Info("Successfully connected to the runtime.");
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return OperationResult.Success;
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}
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public OperationResult Repeat()
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{
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return OperationResult.Success;
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}
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public void Revert()
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{
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logger.Info("Closing runtime connection...");
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ProgressIndicator?.UpdateText(TextKey.ProgressIndicator_CloseRuntimeConnection);
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if (connected)
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{
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try
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{
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runtime.Disconnect();
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}
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catch (Exception e)
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{
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logger.Error("Failed to disconnect from runtime host!", e);
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}
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}
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}
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}
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}
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