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80 lines
2.4 KiB
C#
80 lines
2.4 KiB
C#
using System;
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using System.Threading;
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using System.Threading.Tasks;
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using NLog;
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using NzbDrone.Core.Lifecycle;
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using NzbDrone.Core.Messaging;
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using NzbDrone.Core.Messaging.Commands;
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using NzbDrone.Core.Messaging.Events;
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using Timer = System.Timers.Timer;
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using NzbDrone.Common.TPL;
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namespace NzbDrone.Core.Jobs
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{
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public class Scheduler :
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IHandle<ApplicationStartedEvent>,
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IHandle<ApplicationShutdownRequested>
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{
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private readonly ITaskManager _taskManager;
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private readonly ICommandExecutor _commandExecutor;
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private readonly Logger _logger;
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private static readonly Timer Timer = new Timer();
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private static CancellationTokenSource _cancellationTokenSource;
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public Scheduler(ITaskManager taskManager, ICommandExecutor commandExecutor, Logger logger)
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{
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_taskManager = taskManager;
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_commandExecutor = commandExecutor;
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_logger = logger;
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}
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public void Handle(ApplicationStartedEvent message)
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{
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_cancellationTokenSource = new CancellationTokenSource();
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Timer.Interval = 1000 * 30;
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Timer.Elapsed += (o, args) => Task.Factory.StartNew(ExecuteCommands, _cancellationTokenSource.Token)
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.LogExceptions();
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Timer.Start();
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}
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private void ExecuteCommands()
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{
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try
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{
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Timer.Enabled = false;
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var tasks = _taskManager.GetPending();
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_logger.Trace("Pending Tasks: {0}", tasks.Count);
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foreach (var task in tasks)
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{
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_cancellationTokenSource.Token.ThrowIfCancellationRequested();
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try
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{
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_commandExecutor.PublishCommand(task.TypeName);
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}
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catch (Exception e)
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{
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_logger.ErrorException("Error occurred while execution task " + task.TypeName, e);
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}
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}
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}
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finally
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{
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if (!_cancellationTokenSource.IsCancellationRequested)
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{
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Timer.Enabled = true;
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}
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}
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}
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public void Handle(ApplicationShutdownRequested message)
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{
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_cancellationTokenSource.Cancel(true);
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Timer.Stop();
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}
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}
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} |