mirror of
https://github.com/jellyfin/jellyfin.git
synced 2024-09-06 05:47:14 -04:00
499 lines
17 KiB
C#
499 lines
17 KiB
C#
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using BDInfo;
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using MediaBrowser.ClickOnce;
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using MediaBrowser.Common.Implementations.ScheduledTasks;
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using MediaBrowser.Common.Implementations.Serialization;
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using MediaBrowser.Common.IO;
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using MediaBrowser.Common.Kernel;
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using MediaBrowser.Common.Net;
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using MediaBrowser.Common.ScheduledTasks;
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using MediaBrowser.Controller;
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using MediaBrowser.IsoMounter;
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using MediaBrowser.Logging.Nlog;
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using MediaBrowser.Model.IO;
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using MediaBrowser.Model.Logging;
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using MediaBrowser.Model.MediaInfo;
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using MediaBrowser.Model.Serialization;
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using MediaBrowser.Model.System;
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using MediaBrowser.Model.Updates;
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using MediaBrowser.Networking.Management;
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using MediaBrowser.Networking.Udp;
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using MediaBrowser.Networking.Web;
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using MediaBrowser.Networking.WebSocket;
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using MediaBrowser.Server.Implementations;
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using MediaBrowser.ServerApplication.Implementations;
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using SimpleInjector;
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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.IO;
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using System.Linq;
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using System.Reflection;
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using System.Threading;
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using System.Threading.Tasks;
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namespace MediaBrowser.ServerApplication
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{
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/// <summary>
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/// Class CompositionRoot
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/// </summary>
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public class ApplicationHost : IApplicationHost, IDisposable
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{
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/// <summary>
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/// Gets or sets the logger.
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/// </summary>
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/// <value>The logger.</value>
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private ILogger Logger { get; set; }
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/// <summary>
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/// Gets or sets the iso manager.
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/// </summary>
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/// <value>The iso manager.</value>
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private IIsoManager IsoManager { get; set; }
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/// <summary>
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/// Gets or sets the log file path.
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/// </summary>
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/// <value>The log file path.</value>
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public string LogFilePath { get; private set; }
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/// <summary>
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/// The container
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/// </summary>
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private readonly Container _container = new Container();
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/// <summary>
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/// Gets or sets the kernel.
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/// </summary>
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/// <value>The kernel.</value>
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public Kernel Kernel { get; private set; }
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private readonly List<string> _failedAssemblies = new List<string>();
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/// <summary>
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/// Gets assemblies that failed to load
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/// </summary>
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public IEnumerable<string> FailedAssemblies
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{
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get { return _failedAssemblies; }
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}
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/// <summary>
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/// Gets all types within all running assemblies
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/// </summary>
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/// <value>All types.</value>
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public Type[] AllTypes { get; private set; }
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/// <summary>
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/// Gets all concrete types.
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/// </summary>
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/// <value>All concrete types.</value>
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public Type[] AllConcreteTypes { get; private set; }
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/// <summary>
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/// The disposable parts
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/// </summary>
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private readonly List<IDisposable> _disposableParts = new List<IDisposable>();
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/// <summary>
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/// The json serializer
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/// </summary>
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private readonly IJsonSerializer _jsonSerializer = new JsonSerializer();
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/// <summary>
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/// The _XML serializer
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/// </summary>
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private readonly IXmlSerializer _xmlSerializer = new XmlSerializer();
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/// <summary>
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/// The _application paths
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/// </summary>
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private readonly IServerApplicationPaths _applicationPaths = new ServerApplicationPaths();
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/// <summary>
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/// The _task manager
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/// </summary>
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private readonly ITaskManager _taskManager;
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/// <summary>
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/// Initializes a new instance of the <see cref="ApplicationHost" /> class.
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/// </summary>
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/// <param name="logger">The logger.</param>
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public ApplicationHost(ILogger logger)
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{
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Logger = logger;
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_taskManager = new TaskManager(_applicationPaths, _jsonSerializer, Logger);
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Kernel = new Kernel(this, _applicationPaths, _xmlSerializer, _taskManager, Logger);
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RegisterResources();
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FindParts();
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}
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/// <summary>
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/// Registers resources that classes will depend on
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/// </summary>
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internal void RegisterResources()
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{
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DiscoverTypes();
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RegisterSingleInstance<IKernel>(Kernel);
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RegisterSingleInstance(Kernel);
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RegisterSingleInstance<IApplicationHost>(this);
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RegisterSingleInstance(Logger);
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IsoManager = new PismoIsoManager(Logger);
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RegisterSingleInstance(_applicationPaths);
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RegisterSingleInstance<IApplicationPaths>(_applicationPaths);
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RegisterSingleInstance(IsoManager);
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RegisterSingleInstance(_taskManager);
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RegisterSingleInstance<IBlurayExaminer>(() => new BdInfoExaminer());
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RegisterSingleInstance<INetworkManager>(() => new NetworkManager());
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RegisterSingleInstance<IZipClient>(() => new DotNetZipClient());
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RegisterSingleInstance<IWebSocketServer>(() => new AlchemyServer(Logger));
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RegisterSingleInstance(_jsonSerializer);
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RegisterSingleInstance(_xmlSerializer);
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RegisterSingleInstance<IProtobufSerializer>(() => ProtobufSerializer);
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Register(typeof(IUdpServer), typeof(UdpServer));
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RegisterSingleInstance(() => ServerFactory.CreateServer(this, Kernel, ProtobufSerializer, Logger, "Media Browser", "index.html"));
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}
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/// <summary>
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/// Discovers the types.
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/// </summary>
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private void DiscoverTypes()
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{
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_failedAssemblies.Clear();
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AllTypes = GetComposablePartAssemblies().SelectMany(GetTypes).ToArray();
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AllConcreteTypes = AllTypes.Where(t => t.IsClass && !t.IsAbstract && !t.IsInterface && !t.IsGenericType).ToArray();
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}
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/// <summary>
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/// Finds the parts.
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/// </summary>
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private void FindParts()
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{
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_taskManager.AddTasks(GetExports<IScheduledTask>(false));
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}
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/// <summary>
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/// Gets a list of types within an assembly
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/// This will handle situations that would normally throw an exception - such as a type within the assembly that depends on some other non-existant reference
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/// </summary>
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/// <param name="assembly">The assembly.</param>
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/// <returns>IEnumerable{Type}.</returns>
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/// <exception cref="System.ArgumentNullException">assembly</exception>
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private IEnumerable<Type> GetTypes(Assembly assembly)
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{
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if (assembly == null)
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{
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throw new ArgumentNullException("assembly");
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}
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try
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{
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return assembly.GetTypes();
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}
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catch (ReflectionTypeLoadException ex)
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{
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// If it fails we can still get a list of the Types it was able to resolve
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return ex.Types.Where(t => t != null);
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}
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}
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/// <summary>
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/// The _protobuf serializer initialized
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/// </summary>
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private bool _protobufSerializerInitialized;
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/// <summary>
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/// The _protobuf serializer sync lock
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/// </summary>
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private object _protobufSerializerSyncLock = new object();
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/// <summary>
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/// Gets a dynamically compiled generated serializer that can serialize protocontracts without reflection
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/// </summary>
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private ProtobufSerializer _protobufSerializer;
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/// <summary>
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/// Gets the protobuf serializer.
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/// </summary>
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/// <value>The protobuf serializer.</value>
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public ProtobufSerializer ProtobufSerializer
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{
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get
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{
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// Lazy load
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LazyInitializer.EnsureInitialized(ref _protobufSerializer, ref _protobufSerializerInitialized, ref _protobufSerializerSyncLock, () => ProtobufSerializer.Create(AllTypes));
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return _protobufSerializer;
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}
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private set
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{
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_protobufSerializer = value;
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_protobufSerializerInitialized = value != null;
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}
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}
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/// <summary>
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/// Creates an instance of type and resolves all constructor dependancies
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/// </summary>
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/// <param name="type">The type.</param>
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/// <returns>System.Object.</returns>
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public object CreateInstance(Type type)
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{
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try
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{
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return _container.GetInstance(type);
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}
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catch
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{
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Logger.Error("Error creating {0}", type.Name);
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throw;
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}
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}
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/// <summary>
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/// Registers the specified obj.
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="obj">The obj.</param>
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public void RegisterSingleInstance<T>(T obj)
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where T : class
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{
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_container.RegisterSingle(obj);
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}
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/// <summary>
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/// Registers the specified func.
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="func">The func.</param>
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public void Register<T>(Func<T> func)
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where T : class
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{
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_container.Register(func);
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}
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/// <summary>
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/// Registers the single instance.
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="func">The func.</param>
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public void RegisterSingleInstance<T>(Func<T> func)
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where T : class
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{
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_container.RegisterSingle(func);
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}
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/// <summary>
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/// Resolves this instance.
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <returns>``0.</returns>
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public T Resolve<T>()
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{
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return (T)_container.GetRegistration(typeof(T), true).GetInstance();
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}
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/// <summary>
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/// Resolves this instance.
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <returns>``0.</returns>
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public T TryResolve<T>()
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{
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var result = _container.GetRegistration(typeof(T), false);
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if (result == null)
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{
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return default(T);
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}
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return (T)result.GetInstance();
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}
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/// <summary>
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/// Registers the specified service type.
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/// </summary>
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/// <param name="serviceType">Type of the service.</param>
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/// <param name="implementation">Type of the concrete.</param>
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public void Register(Type serviceType, Type implementation)
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{
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_container.Register(serviceType, implementation);
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}
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/// <summary>
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/// Restarts this instance.
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/// </summary>
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/// <exception cref="System.NotImplementedException"></exception>
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public void Restart()
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{
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App.Instance.Restart();
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}
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/// <summary>
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/// Reloads the logger.
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/// </summary>
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/// <exception cref="System.NotImplementedException"></exception>
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public void ReloadLogger()
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{
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LogFilePath = Path.Combine(Kernel.ApplicationPaths.LogDirectoryPath, "Server-" + DateTime.Now.Ticks + ".log");
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NlogManager.AddFileTarget(LogFilePath, Kernel.Configuration.EnableDebugLevelLogging);
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}
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/// <summary>
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/// Gets or sets a value indicating whether this instance can self update.
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/// </summary>
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/// <value><c>true</c> if this instance can self update; otherwise, <c>false</c>.</value>
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public bool CanSelfUpdate
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{
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get { return ClickOnceHelper.IsNetworkDeployed; }
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}
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/// <summary>
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/// Checks for update.
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/// </summary>
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/// <param name="cancellationToken">The cancellation token.</param>
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/// <param name="progress">The progress.</param>
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/// <returns>Task{CheckForUpdateResult}.</returns>
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public Task<CheckForUpdateResult> CheckForApplicationUpdate(CancellationToken cancellationToken, IProgress<double> progress)
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{
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return new ApplicationUpdateCheck().CheckForApplicationUpdate(cancellationToken, progress);
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}
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/// <summary>
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/// Updates the application.
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/// </summary>
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/// <param name="cancellationToken">The cancellation token.</param>
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/// <param name="progress">The progress.</param>
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/// <returns>Task.</returns>
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public Task UpdateApplication(CancellationToken cancellationToken, IProgress<double> progress)
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{
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return new ApplicationUpdater().UpdateApplication(cancellationToken, progress);
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}
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/// <summary>
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/// Gets the composable part assemblies.
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/// </summary>
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/// <returns>IEnumerable{Assembly}.</returns>
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private IEnumerable<Assembly> GetComposablePartAssemblies()
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{
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// Gets all plugin assemblies by first reading all bytes of the .dll and calling Assembly.Load against that
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// This will prevent the .dll file from getting locked, and allow us to replace it when needed
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foreach (var pluginAssembly in Directory
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.EnumerateFiles(Kernel.ApplicationPaths.PluginsPath, "*.dll", SearchOption.TopDirectoryOnly)
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.Select(LoadAssembly).Where(a => a != null))
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{
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yield return pluginAssembly;
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}
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var runningDirectory = Path.GetDirectoryName(Process.GetCurrentProcess().MainModule.FileName);
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var corePluginDirectory = Path.Combine(runningDirectory, "CorePlugins");
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// This will prevent the .dll file from getting locked, and allow us to replace it when needed
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foreach (var pluginAssembly in Directory
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.EnumerateFiles(corePluginDirectory, "*.dll", SearchOption.TopDirectoryOnly)
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.Select(LoadAssembly).Where(a => a != null))
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{
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yield return pluginAssembly;
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}
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// Include composable parts in the Model assembly
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yield return typeof(SystemInfo).Assembly;
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// Include composable parts in the Common assembly
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yield return typeof(IKernel).Assembly;
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// Include composable parts in the Controller assembly
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yield return typeof(Kernel).Assembly;
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// Common implementations
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yield return typeof(TaskManager).Assembly;
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// Server implementations
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yield return typeof(ServerApplicationPaths).Assembly;
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// Include composable parts in the running assembly
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yield return GetType().Assembly;
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}
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/// <summary>
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/// Loads the assembly.
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/// </summary>
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/// <param name="file">The file.</param>
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/// <returns>Assembly.</returns>
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private Assembly LoadAssembly(string file)
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{
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try
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{
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return Assembly.Load(File.ReadAllBytes((file)));
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}
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catch (Exception ex)
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{
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_failedAssemblies.Add(file);
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Logger.ErrorException("Error loading assembly {0}", ex, file);
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return null;
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}
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}
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/// <summary>
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/// Gets the exports.
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/// </summary>
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|||
|
/// <typeparam name="T"></typeparam>
|
|||
|
/// <param name="allTypes">All types.</param>
|
|||
|
/// <param name="manageLiftime">if set to <c>true</c> [manage liftime].</param>
|
|||
|
/// <returns>IEnumerable{``0}.</returns>
|
|||
|
public IEnumerable<T> GetExports<T>(bool manageLiftime = true)
|
|||
|
{
|
|||
|
var currentType = typeof(T);
|
|||
|
|
|||
|
Logger.Info("Composing instances of " + currentType.Name);
|
|||
|
|
|||
|
var parts = AllConcreteTypes.Where(currentType.IsAssignableFrom).Select(CreateInstance).Cast<T>().ToArray();
|
|||
|
|
|||
|
if (manageLiftime)
|
|||
|
{
|
|||
|
_disposableParts.AddRange(parts.OfType<IDisposable>());
|
|||
|
}
|
|||
|
|
|||
|
return parts;
|
|||
|
}
|
|||
|
|
|||
|
/// <summary>
|
|||
|
/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
|
|||
|
/// </summary>
|
|||
|
public void Dispose()
|
|||
|
{
|
|||
|
Dispose(true);
|
|||
|
}
|
|||
|
|
|||
|
/// <summary>
|
|||
|
/// Releases unmanaged and - optionally - managed resources.
|
|||
|
/// </summary>
|
|||
|
/// <param name="dispose"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
|
|||
|
protected virtual void Dispose(bool dispose)
|
|||
|
{
|
|||
|
IsoManager.Dispose();
|
|||
|
|
|||
|
foreach (var part in _disposableParts)
|
|||
|
{
|
|||
|
part.Dispose();
|
|||
|
}
|
|||
|
|
|||
|
_disposableParts.Clear();
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
public class MyClass
|
|||
|
{
|
|||
|
public MyClass()
|
|||
|
{
|
|||
|
|
|||
|
}
|
|||
|
}
|
|||
|
}
|