69 lines
1.9 KiB
C#
69 lines
1.9 KiB
C#
/*
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* Copyright (c) 2023 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 SafeExamBrowser.Communication.Contracts;
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using SafeExamBrowser.Core.Contracts.OperationModel;
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using SafeExamBrowser.Core.Contracts.OperationModel.Events;
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using SafeExamBrowser.I18n.Contracts;
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using SafeExamBrowser.Logging.Contracts;
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namespace SafeExamBrowser.Core.Operations
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{
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/// <summary>
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/// An operation to handle the lifetime of an <see cref="ICommunicationHost"/>. The host is started during <see cref="Perform"/>,
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/// stopped and restarted during <see cref="Repeat"/> (if not running) and stopped during <see cref="Revert"/>.
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/// </summary>
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public class CommunicationHostOperation : IRepeatableOperation
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{
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private ICommunicationHost host;
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private ILogger logger;
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public event ActionRequiredEventHandler ActionRequired { add { } remove { } }
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public event StatusChangedEventHandler StatusChanged;
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public CommunicationHostOperation(ICommunicationHost host, ILogger logger)
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{
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this.host = host;
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this.logger = logger;
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}
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public OperationResult Perform()
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{
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logger.Info("Starting communication host...");
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StatusChanged?.Invoke(TextKey.OperationStatus_StartCommunicationHost);
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host.Start();
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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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if (!host.IsRunning)
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{
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logger.Info("Restarting communication host...");
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StatusChanged?.Invoke(TextKey.OperationStatus_RestartCommunicationHost);
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host.Stop();
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host.Start();
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}
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return OperationResult.Success;
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}
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public OperationResult Revert()
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{
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logger.Info("Stopping communication host...");
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StatusChanged?.Invoke(TextKey.OperationStatus_StopCommunicationHost);
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host.Stop();
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return OperationResult.Success;
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}
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}
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}
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