jellyfin/Jellyfin.Api/WebSocketListeners/ScheduledTasksWebSocketListener.cs

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using System.Collections.Generic;
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using System.Linq;
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using System.Threading.Tasks;
using MediaBrowser.Controller.Net;
using MediaBrowser.Model.Events;
using MediaBrowser.Model.Tasks;
using Microsoft.Extensions.Logging;
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namespace Jellyfin.Api.WebSocketListeners
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{
/// <summary>
/// Class ScheduledTasksWebSocketListener.
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/// </summary>
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public class ScheduledTasksWebSocketListener : BasePeriodicWebSocketListener<IEnumerable<TaskInfo>, WebSocketListenerState>
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{
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/// <summary>
/// Gets or sets the task manager.
/// </summary>
/// <value>The task manager.</value>
private readonly ITaskManager _taskManager;
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/// <summary>
/// Initializes a new instance of the <see cref="ScheduledTasksWebSocketListener"/> class.
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/// </summary>
/// <param name="logger">Instance of the <see cref="ILogger{ScheduledTasksWebSocketListener}"/> interface.</param>
/// <param name="taskManager">Instance of the <see cref="ITaskManager"/> interface.</param>
public ScheduledTasksWebSocketListener(ILogger<ScheduledTasksWebSocketListener> logger, ITaskManager taskManager)
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: base(logger)
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{
_taskManager = taskManager;
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_taskManager.TaskExecuting += OnTaskExecuting;
_taskManager.TaskCompleted += OnTaskCompleted;
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}
/// <summary>
/// Gets the name.
/// </summary>
/// <value>The name.</value>
protected override string Name => "ScheduledTasksInfo";
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/// <summary>
/// Gets the data to send.
/// </summary>
/// <returns>Task{IEnumerable{TaskInfo}}.</returns>
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protected override Task<IEnumerable<TaskInfo>> GetDataToSend()
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{
return Task.FromResult(_taskManager.ScheduledTasks
.OrderBy(i => i.Name)
.Select(ScheduledTaskHelpers.GetTaskInfo)
.Where(i => !i.IsHidden));
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}
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/// <inheritdoc />
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protected override void Dispose(bool dispose)
{
_taskManager.TaskExecuting -= OnTaskExecuting;
_taskManager.TaskCompleted -= OnTaskCompleted;
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base.Dispose(dispose);
}
private void OnTaskCompleted(object sender, TaskCompletionEventArgs e)
{
SendData(true);
e.Task.TaskProgress -= OnTaskProgress;
}
private void OnTaskExecuting(object sender, GenericEventArgs<IScheduledTaskWorker> e)
{
SendData(true);
e.Argument.TaskProgress += OnTaskProgress;
}
private void OnTaskProgress(object sender, GenericEventArgs<double> e)
{
SendData(false);
}
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}
}