87 lines
2.6 KiB
C#
87 lines
2.6 KiB
C#
using System;
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using System.Threading.Tasks;
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using MediaBrowser.Model.Events;
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using MediaBrowser.Model.Logging;
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using MediaBrowser.Model.System;
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using MediaBrowser.Model.Tasks;
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namespace Emby.Server.Implementations.ScheduledTasks
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{
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/// <summary>
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/// Class SystemEventTrigger
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/// </summary>
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public class SystemEventTrigger : ITaskTrigger
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{
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/// <summary>
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/// Gets or sets the system event.
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/// </summary>
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/// <value>The system event.</value>
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public SystemEvent SystemEvent { get; set; }
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/// <summary>
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/// Gets the execution properties of this task.
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/// </summary>
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/// <value>
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/// The execution properties of this task.
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/// </value>
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public TaskExecutionOptions TaskOptions { get; set; }
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private readonly ISystemEvents _systemEvents;
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public SystemEventTrigger(ISystemEvents systemEvents)
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{
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_systemEvents = systemEvents;
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}
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/// <summary>
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/// Stars waiting for the trigger action
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/// </summary>
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/// <param name="lastResult">The last result.</param>
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/// <param name="isApplicationStartup">if set to <c>true</c> [is application startup].</param>
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public void Start(TaskResult lastResult, ILogger logger, string taskName, bool isApplicationStartup)
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{
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switch (SystemEvent)
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{
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case SystemEvent.WakeFromSleep:
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_systemEvents.Resume += _systemEvents_Resume;
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break;
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}
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}
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private async void _systemEvents_Resume(object sender, EventArgs e)
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{
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if (SystemEvent == SystemEvent.WakeFromSleep)
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{
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// This value is a bit arbitrary, but add a delay to help ensure network connections have been restored before running the task
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await Task.Delay(10000).ConfigureAwait(false);
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OnTriggered();
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}
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}
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/// <summary>
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/// Stops waiting for the trigger action
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/// </summary>
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public void Stop()
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{
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_systemEvents.Resume -= _systemEvents_Resume;
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}
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/// <summary>
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/// Occurs when [triggered].
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/// </summary>
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public event EventHandler<GenericEventArgs<TaskExecutionOptions>> Triggered;
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/// <summary>
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/// Called when [triggered].
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/// </summary>
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private void OnTriggered()
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{
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if (Triggered != null)
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{
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Triggered(this, new GenericEventArgs<TaskExecutionOptions>(TaskOptions));
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}
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}
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}
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}
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