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Convert UserDataChangeNotifier to IHostedService

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This commit is contained in:
Patrick Barron 2024-02-06 15:54:03 -05:00
parent 4e02d8aa21
commit 9e62b6919f
2 changed files with 47 additions and 42 deletions
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88
Emby.Server.Implementations/EntryPoints/UserDataChangeNotifier.cs
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@ -1,5 +1,3 @@
#pragma warning disable CS1591
using System;
using System.Collections.Generic;
using System.Globalization;
@ -8,14 +6,17 @@ using System.Threading;
using System.Threading.Tasks;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Plugins;
using MediaBrowser.Controller.Session;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.Session;
using Microsoft.Extensions.Hosting;
namespace Emby.Server.Implementations.EntryPoints
{
public sealed class UserDataChangeNotifier : IServerEntryPoint
/// <summary>
/// <see cref="IHostedService"/> responsible for notifying users when associated item data is updated.
/// </summary>
public sealed class UserDataChangeNotifier : IHostedService, IDisposable
{
private const int UpdateDuration = 500;
@ -23,25 +24,43 @@ namespace Emby.Server.Implementations.EntryPoints
private readonly IUserDataManager _userDataManager;
private readonly IUserManager _userManager;
private readonly Dictionary<Guid, List<BaseItem>> _changedItems = new Dictionary<Guid, List<BaseItem>>();
private readonly Dictionary<Guid, List<BaseItem>> _changedItems = new();
private readonly object _syncLock = new();
private readonly object _syncLock = new object();
private Timer? _updateTimer;
public UserDataChangeNotifier(IUserDataManager userDataManager, ISessionManager sessionManager, IUserManager userManager)
/// <summary>
/// Initializes a new instance of the <see cref="UserDataChangeNotifier"/> class.
/// </summary>
/// <param name="userDataManager">The <see cref="IUserDataManager"/>.</param>
/// <param name="sessionManager">The <see cref="ISessionManager"/>.</param>
/// <param name="userManager">The <see cref="IUserManager"/>.</param>
public UserDataChangeNotifier(
IUserDataManager userDataManager,
ISessionManager sessionManager,
IUserManager userManager)
{
_userDataManager = userDataManager;
_sessionManager = sessionManager;
_userManager = userManager;
}
public Task RunAsync()
/// <inheritdoc />
public Task StartAsync(CancellationToken cancellationToken)
{
_userDataManager.UserDataSaved += OnUserDataManagerUserDataSaved;
return Task.CompletedTask;
}
/// <inheritdoc />
public Task StopAsync(CancellationToken cancellationToken)
{
_userDataManager.UserDataSaved -= OnUserDataManagerUserDataSaved;
return Task.CompletedTask;
}
private void OnUserDataManagerUserDataSaved(object? sender, UserDataSaveEventArgs e)
{
if (e.SaveReason == UserDataSaveReason.PlaybackProgress)
@ -103,55 +122,40 @@ namespace Emby.Server.Implementations.EntryPoints
}
}
await SendNotifications(changes, CancellationToken.None).ConfigureAwait(false);
}
private async Task SendNotifications(List<KeyValuePair<Guid, List<BaseItem>>> changes, CancellationToken cancellationToken)
{
foreach ((var key, var value) in changes)
foreach (var (userId, changedItems) in changes)
{
await SendNotifications(key, value, cancellationToken).ConfigureAwait(false);
await _sessionManager.SendMessageToUserSessions(
[userId],
SessionMessageType.UserDataChanged,
() => GetUserDataChangeInfo(userId, changedItems),
default).ConfigureAwait(false);
}
}
private Task SendNotifications(Guid userId, List<BaseItem> changedItems, CancellationToken cancellationToken)
{
return _sessionManager.SendMessageToUserSessions(new List<Guid> { userId }, SessionMessageType.UserDataChanged, () => GetUserDataChangeInfo(userId, changedItems), cancellationToken);
}
private UserDataChangeInfo GetUserDataChangeInfo(Guid userId, List<BaseItem> changedItems)
{
var user = _userManager.GetUserById(userId);
var dtoList = changedItems
.DistinctBy(x => x.Id)
.Select(i =>
{
var dto = _userDataManager.GetUserDataDto(i, user);
dto.ItemId = i.Id.ToString("N", CultureInfo.InvariantCulture);
return dto;
})
.ToArray();
var userIdString = userId.ToString("N", CultureInfo.InvariantCulture);
return new UserDataChangeInfo
{
UserId = userIdString,
UserDataList = dtoList
UserId = userId.ToString("N", CultureInfo.InvariantCulture),
UserDataList = changedItems
.DistinctBy(x => x.Id)
.Select(i =>
{
var dto = _userDataManager.GetUserDataDto(i, user);
dto.ItemId = i.Id.ToString("N", CultureInfo.InvariantCulture);
return dto;
})
.ToArray()
};
}
/// <inheritdoc />
public void Dispose()
{
if (_updateTimer is not null)
{
_updateTimer.Dispose();
_updateTimer = null;
}
_userDataManager.UserDataSaved -= OnUserDataManagerUserDataSaved;
_updateTimer?.Dispose();
_updateTimer = null;
}
}
}

1
Jellyfin.Server/Startup.cs
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@ -128,6 +128,7 @@ namespace Jellyfin.Server
services.AddHostedService<AutoDiscoveryHost>();
services.AddHostedService<PortForwardingHost>();
services.AddHostedService<LibraryChangedNotifier>();
services.AddHostedService<UserDataChangeNotifier>();
}
/// <summary>