2019-01-13 20:54:44 +01:00
|
|
|
using System;
|
2016-10-29 07:40:15 +02:00
|
|
|
using System.Linq;
|
|
|
|
using System.Threading;
|
|
|
|
using MediaBrowser.Model.Tasks;
|
2019-01-13 20:22:24 +01:00
|
|
|
using Microsoft.Extensions.Logging;
|
2016-10-29 07:40:15 +02:00
|
|
|
|
2021-12-15 18:25:36 +01:00
|
|
|
namespace Emby.Server.Implementations.ScheduledTasks.Triggers
|
2016-10-29 07:40:15 +02:00
|
|
|
{
|
|
|
|
/// <summary>
|
2020-06-16 00:37:52 +02:00
|
|
|
/// Represents a task trigger that runs repeatedly on an interval.
|
2016-10-29 07:40:15 +02:00
|
|
|
/// </summary>
|
2021-05-28 14:33:54 +02:00
|
|
|
public sealed class IntervalTrigger : ITaskTrigger
|
2016-10-29 07:40:15 +02:00
|
|
|
{
|
2021-05-28 14:33:54 +02:00
|
|
|
private readonly TimeSpan _interval;
|
2020-08-31 22:20:19 +02:00
|
|
|
private DateTime _lastStartDate;
|
2021-05-28 14:33:54 +02:00
|
|
|
private Timer? _timer;
|
2020-08-31 22:20:19 +02:00
|
|
|
|
|
|
|
/// <summary>
|
2021-05-28 14:33:54 +02:00
|
|
|
/// Initializes a new instance of the <see cref="IntervalTrigger"/> class.
|
2016-10-29 07:40:15 +02:00
|
|
|
/// </summary>
|
2021-05-28 14:33:54 +02:00
|
|
|
/// <param name="interval">The interval.</param>
|
|
|
|
/// <param name="taskOptions">The options of this task.</param>
|
|
|
|
public IntervalTrigger(TimeSpan interval, TaskOptions taskOptions)
|
|
|
|
{
|
|
|
|
_interval = interval;
|
|
|
|
TaskOptions = taskOptions;
|
|
|
|
}
|
2016-10-29 07:40:15 +02:00
|
|
|
|
|
|
|
/// <summary>
|
2021-05-28 14:33:54 +02:00
|
|
|
/// Occurs when [triggered].
|
2016-10-29 07:40:15 +02:00
|
|
|
/// </summary>
|
2021-05-28 14:33:54 +02:00
|
|
|
public event EventHandler<EventArgs>? Triggered;
|
2016-10-29 07:40:15 +02:00
|
|
|
|
|
|
|
/// <summary>
|
2021-05-28 14:33:54 +02:00
|
|
|
/// Gets the options of this task.
|
2016-10-29 07:40:15 +02:00
|
|
|
/// </summary>
|
2021-05-28 14:33:54 +02:00
|
|
|
public TaskOptions TaskOptions { get; }
|
2016-10-29 07:40:15 +02:00
|
|
|
|
|
|
|
/// <summary>
|
2020-06-16 00:37:52 +02:00
|
|
|
/// Stars waiting for the trigger action.
|
2016-10-29 07:40:15 +02:00
|
|
|
/// </summary>
|
|
|
|
/// <param name="lastResult">The last result.</param>
|
2020-05-29 11:28:19 +02:00
|
|
|
/// <param name="logger">The logger.</param>
|
|
|
|
/// <param name="taskName">The name of the task.</param>
|
2016-10-29 07:40:15 +02:00
|
|
|
/// <param name="isApplicationStartup">if set to <c>true</c> [is application startup].</param>
|
2021-12-15 18:25:36 +01:00
|
|
|
public void Start(TaskResult? lastResult, ILogger logger, string taskName, bool isApplicationStartup)
|
2016-10-29 07:40:15 +02:00
|
|
|
{
|
|
|
|
DisposeTimer();
|
|
|
|
|
|
|
|
DateTime triggerDate;
|
|
|
|
|
|
|
|
if (lastResult == null)
|
|
|
|
{
|
|
|
|
// Task has never been completed before
|
|
|
|
triggerDate = DateTime.UtcNow.AddHours(1);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
2021-05-28 14:33:54 +02:00
|
|
|
triggerDate = new[] { lastResult.EndTimeUtc, _lastStartDate }.Max().Add(_interval);
|
2016-10-29 07:40:15 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
if (DateTime.UtcNow > triggerDate)
|
|
|
|
{
|
|
|
|
triggerDate = DateTime.UtcNow.AddMinutes(1);
|
|
|
|
}
|
|
|
|
|
|
|
|
var dueTime = triggerDate - DateTime.UtcNow;
|
|
|
|
var maxDueTime = TimeSpan.FromDays(7);
|
|
|
|
|
|
|
|
if (dueTime > maxDueTime)
|
|
|
|
{
|
|
|
|
dueTime = maxDueTime;
|
|
|
|
}
|
|
|
|
|
2021-12-15 18:25:36 +01:00
|
|
|
_timer = new Timer(_ => OnTriggered(), null, dueTime, TimeSpan.FromMilliseconds(-1));
|
2016-10-29 07:40:15 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/// <summary>
|
2020-06-16 00:37:52 +02:00
|
|
|
/// Stops waiting for the trigger action.
|
2016-10-29 07:40:15 +02:00
|
|
|
/// </summary>
|
|
|
|
public void Stop()
|
|
|
|
{
|
|
|
|
DisposeTimer();
|
|
|
|
}
|
|
|
|
|
|
|
|
/// <summary>
|
|
|
|
/// Disposes the timer.
|
|
|
|
/// </summary>
|
|
|
|
private void DisposeTimer()
|
|
|
|
{
|
2021-05-28 14:33:54 +02:00
|
|
|
_timer?.Dispose();
|
2016-10-29 07:40:15 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/// <summary>
|
|
|
|
/// Called when [triggered].
|
|
|
|
/// </summary>
|
|
|
|
private void OnTriggered()
|
|
|
|
{
|
|
|
|
DisposeTimer();
|
|
|
|
|
|
|
|
if (Triggered != null)
|
|
|
|
{
|
|
|
|
_lastStartDate = DateTime.UtcNow;
|
2018-09-12 19:26:21 +02:00
|
|
|
Triggered(this, EventArgs.Empty);
|
2016-10-29 07:40:15 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|