85 lines
2.6 KiB
C#
85 lines
2.6 KiB
C#
using System;
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using System.Threading;
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using MediaBrowser.Model.Tasks;
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using Microsoft.Extensions.Logging;
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namespace Emby.Server.Implementations.ScheduledTasks
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{
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/// <summary>
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/// Represents a task trigger that fires everyday.
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/// </summary>
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public sealed class DailyTrigger : ITaskTrigger
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{
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private readonly TimeSpan _timeOfDay;
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private Timer? _timer;
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/// <summary>
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/// Initializes a new instance of the <see cref="DailyTrigger"/> class.
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/// </summary>
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/// <param name="timeofDay">The time of day to trigger the task to run.</param>
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/// <param name="taskOptions">The options of this task.</param>
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public DailyTrigger(TimeSpan timeofDay, TaskOptions taskOptions)
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{
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_timeOfDay = timeofDay;
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TaskOptions = taskOptions;
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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<EventArgs>? Triggered;
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/// <summary>
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/// Gets the options of this task.
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/// </summary>
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public TaskOptions TaskOptions { get; }
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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="logger">The logger.</param>
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/// <param name="taskName">The name of the task.</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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DisposeTimer();
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var now = DateTime.Now;
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var triggerDate = now.TimeOfDay > _timeOfDay ? now.Date.AddDays(1) : now.Date;
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triggerDate = triggerDate.Add(_timeOfDay);
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var dueTime = triggerDate - now;
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logger.LogInformation("Daily trigger for {Task} set to fire at {TriggerDate:yyyy-MM-dd HH:mm:ss.fff zzz}, which is {DueTime:c} from now.", taskName, triggerDate, dueTime);
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_timer = new Timer(state => OnTriggered(), null, dueTime, TimeSpan.FromMilliseconds(-1));
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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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DisposeTimer();
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}
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/// <summary>
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/// Disposes the timer.
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/// </summary>
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private void DisposeTimer()
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{
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_timer?.Dispose();
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}
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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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Triggered?.Invoke(this, EventArgs.Empty);
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}
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}
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}
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