jellyfin/Jellyfin.Server.Implementations/Events/EventManager.cs
2020-08-15 18:36:37 -04:00

61 lines
1.9 KiB
C#

using System;
using System.Threading.Tasks;
using MediaBrowser.Controller;
using MediaBrowser.Controller.Events;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
namespace Jellyfin.Server.Implementations.Events
{
/// <summary>
/// Handles the firing of events.
/// </summary>
public class EventManager : IEventManager
{
private readonly ILogger<EventManager> _logger;
private readonly IServerApplicationHost _appHost;
/// <summary>
/// Initializes a new instance of the <see cref="EventManager"/> class.
/// </summary>
/// <param name="logger">The logger.</param>
/// <param name="appHost">The application host.</param>
public EventManager(ILogger<EventManager> logger, IServerApplicationHost appHost)
{
_logger = logger;
_appHost = appHost;
}
/// <inheritdoc />
public void Publish<T>(T eventArgs)
where T : EventArgs
{
Task.WaitAll(PublishInternal(eventArgs));
}
/// <inheritdoc />
public async Task PublishAsync<T>(T eventArgs)
where T : EventArgs
{
await PublishInternal(eventArgs).ConfigureAwait(false);
}
private async Task PublishInternal<T>(T eventArgs)
where T : EventArgs
{
using var scope = _appHost.ServiceProvider.CreateScope();
foreach (var service in scope.ServiceProvider.GetServices<IEventConsumer<T>>())
{
try
{
await service.OnEvent(eventArgs).ConfigureAwait(false);
}
catch (Exception e)
{
_logger.LogError(e, "Uncaught exception in EventConsumer {type}: ", service.GetType());
}
}
}
}
}