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-rw-r--r--MediaBrowser.Common/Kernel/BaseKernel.cs1116
1 files changed, 771 insertions, 345 deletions
diff --git a/MediaBrowser.Common/Kernel/BaseKernel.cs b/MediaBrowser.Common/Kernel/BaseKernel.cs
index a6081a688..a4cd81665 100644
--- a/MediaBrowser.Common/Kernel/BaseKernel.cs
+++ b/MediaBrowser.Common/Kernel/BaseKernel.cs
@@ -1,345 +1,771 @@
-using MediaBrowser.Common.Events;
-using MediaBrowser.Common.Logging;
-using MediaBrowser.Common.Mef;
-using MediaBrowser.Common.Net;
-using MediaBrowser.Common.Net.Handlers;
-using MediaBrowser.Common.Plugins;
-using MediaBrowser.Common.Serialization;
-using MediaBrowser.Model.Configuration;
-using MediaBrowser.Model.Progress;
-using System;
-using System.Collections.Generic;
-using System.ComponentModel.Composition;
-using System.ComponentModel.Composition.Hosting;
-using System.ComponentModel.Composition.Primitives;
-using System.IO;
-using System.Linq;
-using System.Reflection;
-using System.Threading.Tasks;
-
-namespace MediaBrowser.Common.Kernel
-{
- /// <summary>
- /// Represents a shared base kernel for both the Ui and server apps
- /// </summary>
- public abstract class BaseKernel<TConfigurationType, TApplicationPathsType> : IDisposable, IKernel
- where TConfigurationType : BaseApplicationConfiguration, new()
- where TApplicationPathsType : BaseApplicationPaths, new()
- {
- #region ReloadBeginning Event
- /// <summary>
- /// Fires whenever the kernel begins reloading
- /// </summary>
- public event EventHandler<GenericEventArgs<IProgress<TaskProgress>>> ReloadBeginning;
- private void OnReloadBeginning(IProgress<TaskProgress> progress)
- {
- if (ReloadBeginning != null)
- {
- ReloadBeginning(this, new GenericEventArgs<IProgress<TaskProgress>> { Argument = progress });
- }
- }
- #endregion
-
- #region ReloadCompleted Event
- /// <summary>
- /// Fires whenever the kernel completes reloading
- /// </summary>
- public event EventHandler<GenericEventArgs<IProgress<TaskProgress>>> ReloadCompleted;
- private void OnReloadCompleted(IProgress<TaskProgress> progress)
- {
- if (ReloadCompleted != null)
- {
- ReloadCompleted(this, new GenericEventArgs<IProgress<TaskProgress>> { Argument = progress });
- }
- }
- #endregion
-
- /// <summary>
- /// Gets the current configuration
- /// </summary>
- public TConfigurationType Configuration { get; private set; }
-
- public TApplicationPathsType ApplicationPaths { get; private set; }
-
- /// <summary>
- /// Gets the list of currently loaded plugins
- /// </summary>
- [ImportMany(typeof(BasePlugin))]
- public IEnumerable<BasePlugin> Plugins { get; private set; }
-
- /// <summary>
- /// Gets the list of currently registered http handlers
- /// </summary>
- [ImportMany(typeof(BaseHandler))]
- private IEnumerable<BaseHandler> HttpHandlers { get; set; }
-
- /// <summary>
- /// Gets the list of currently registered Loggers
- /// </summary>
- [ImportMany(typeof(BaseLogger))]
- public IEnumerable<BaseLogger> Loggers { get; set; }
-
- /// <summary>
- /// Both the Ui and server will have a built-in HttpServer.
- /// People will inevitably want remote control apps so it's needed in the Ui too.
- /// </summary>
- public HttpServer HttpServer { get; private set; }
-
- /// <summary>
- /// This subscribes to HttpListener requests and finds the appropate BaseHandler to process it
- /// </summary>
- private IDisposable HttpListener { get; set; }
-
- /// <summary>
- /// Gets the MEF CompositionContainer
- /// </summary>
- private CompositionContainer CompositionContainer { get; set; }
-
- protected virtual string HttpServerUrlPrefix
- {
- get
- {
- return "http://+:" + Configuration.HttpServerPortNumber + "/mediabrowser/";
- }
- }
-
- /// <summary>
- /// Gets the kernel context. Subclasses will have to override.
- /// </summary>
- public abstract KernelContext KernelContext { get; }
-
- /// <summary>
- /// Initializes the Kernel
- /// </summary>
- public async Task Init(IProgress<TaskProgress> progress)
- {
- Logger.Kernel = this;
-
- // Performs initializations that only occur once
- InitializeInternal(progress);
-
- // Performs initializations that can be reloaded at anytime
- await Reload(progress).ConfigureAwait(false);
- }
-
- /// <summary>
- /// Performs initializations that only occur once
- /// </summary>
- protected virtual void InitializeInternal(IProgress<TaskProgress> progress)
- {
- ApplicationPaths = new TApplicationPathsType();
-
- ReportProgress(progress, "Loading Configuration");
- ReloadConfiguration();
-
- ReportProgress(progress, "Loading Http Server");
- ReloadHttpServer();
- }
-
- /// <summary>
- /// Performs initializations that can be reloaded at anytime
- /// </summary>
- public async Task Reload(IProgress<TaskProgress> progress)
- {
- OnReloadBeginning(progress);
-
- await ReloadInternal(progress).ConfigureAwait(false);
-
- OnReloadCompleted(progress);
-
- ReportProgress(progress, "Kernel.Reload Complete");
- }
-
- /// <summary>
- /// Performs initializations that can be reloaded at anytime
- /// </summary>
- protected virtual async Task ReloadInternal(IProgress<TaskProgress> progress)
- {
- await Task.Run(() =>
- {
- ReportProgress(progress, "Loading Plugins");
- ReloadComposableParts();
-
- }).ConfigureAwait(false);
- }
-
- /// <summary>
- /// Uses MEF to locate plugins
- /// Subclasses can use this to locate types within plugins
- /// </summary>
- private void ReloadComposableParts()
- {
- DisposeComposableParts();
-
- CompositionContainer = GetCompositionContainer(includeCurrentAssembly: true);
-
- CompositionContainer.ComposeParts(this);
-
- OnComposablePartsLoaded();
-
- CompositionContainer.Catalog.Dispose();
- }
-
- /// <summary>
- /// Constructs an MEF CompositionContainer based on the current running assembly and all plugin assemblies
- /// </summary>
- public CompositionContainer GetCompositionContainer(bool includeCurrentAssembly = false)
- {
- // Gets all plugin assemblies by first reading all bytes of the .dll and calling Assembly.Load against that
- // This will prevent the .dll file from getting locked, and allow us to replace it when needed
- IEnumerable<Assembly> pluginAssemblies = Directory.GetFiles(ApplicationPaths.PluginsPath, "*.dll", SearchOption.TopDirectoryOnly).Select(f => Assembly.Load(File.ReadAllBytes((f))));
-
- var catalogs = new List<ComposablePartCatalog>();
-
- catalogs.AddRange(pluginAssemblies.Select(a => new AssemblyCatalog(a)));
-
- // Include composable parts in the Common assembly
- catalogs.Add(new AssemblyCatalog(Assembly.GetExecutingAssembly()));
-
- if (includeCurrentAssembly)
- {
- // Include composable parts in the subclass assembly
- catalogs.Add(new AssemblyCatalog(GetType().Assembly));
- }
-
- return MefUtils.GetSafeCompositionContainer(catalogs);
- }
-
- /// <summary>
- /// Fires after MEF finishes finding composable parts within plugin assemblies
- /// </summary>
- protected virtual void OnComposablePartsLoaded()
- {
- foreach (var logger in Loggers)
- {
- logger.Initialize(this);
- }
-
- // Start-up each plugin
- foreach (var plugin in Plugins)
- {
- plugin.Initialize(this);
- }
- }
-
- /// <summary>
- /// Reloads application configuration from the config file
- /// </summary>
- private void ReloadConfiguration()
- {
- //Configuration information for anything other than server-specific configuration will have to come via the API... -ebr
-
- // Deserialize config
- // Use try/catch to avoid the extra file system lookup using File.Exists
- try
- {
- Configuration = XmlSerializer.DeserializeFromFile<TConfigurationType>(ApplicationPaths.SystemConfigurationFilePath);
- }
- catch (FileNotFoundException)
- {
- Configuration = new TConfigurationType();
- XmlSerializer.SerializeToFile(Configuration, ApplicationPaths.SystemConfigurationFilePath);
- }
- }
-
- /// <summary>
- /// Restarts the Http Server, or starts it if not currently running
- /// </summary>
- private void ReloadHttpServer()
- {
- DisposeHttpServer();
-
- HttpServer = new HttpServer(HttpServerUrlPrefix);
-
- HttpListener = HttpServer.Subscribe(ctx =>
- {
- BaseHandler handler = HttpHandlers.FirstOrDefault(h => h.HandlesRequest(ctx.Request));
-
- // Find the appropiate http handler
- if (handler != null)
- {
- // Need to create a new instance because handlers are currently stateful
- handler = Activator.CreateInstance(handler.GetType()) as BaseHandler;
-
- // No need to await this, despite the compiler warning
- handler.ProcessRequest(ctx);
- }
- });
- }
-
- /// <summary>
- /// Disposes all resources currently in use.
- /// </summary>
- public virtual void Dispose()
- {
- Logger.LogInfo("Beginning Kernel.Dispose");
-
- DisposeHttpServer();
-
- DisposeComposableParts();
- }
-
- /// <summary>
- /// Disposes all objects gathered through MEF composable parts
- /// </summary>
- protected virtual void DisposeComposableParts()
- {
- if (CompositionContainer != null)
- {
- CompositionContainer.Dispose();
- }
- }
-
- /// <summary>
- /// Disposes the current HttpServer
- /// </summary>
- private void DisposeHttpServer()
- {
- if (HttpServer != null)
- {
- Logger.LogInfo("Disposing Http Server");
-
- HttpServer.Dispose();
- }
-
- if (HttpListener != null)
- {
- HttpListener.Dispose();
- }
- }
-
- /// <summary>
- /// Gets the current application version
- /// </summary>
- public Version ApplicationVersion
- {
- get
- {
- return GetType().Assembly.GetName().Version;
- }
- }
-
- protected void ReportProgress(IProgress<TaskProgress> progress, string message)
- {
- progress.Report(new TaskProgress { Description = message });
-
- Logger.LogInfo(message);
- }
-
- BaseApplicationPaths IKernel.ApplicationPaths
- {
- get { return ApplicationPaths; }
- }
- }
-
- public interface IKernel
- {
- BaseApplicationPaths ApplicationPaths { get; }
- KernelContext KernelContext { get; }
-
- Task Init(IProgress<TaskProgress> progress);
- Task Reload(IProgress<TaskProgress> progress);
- IEnumerable<BaseLogger> Loggers { get; }
- void Dispose();
- }
-}
+using MediaBrowser.Common.Events;
+using MediaBrowser.Common.IO;
+using MediaBrowser.Common.Localization;
+using MediaBrowser.Common.Mef;
+using MediaBrowser.Common.Net;
+using MediaBrowser.Common.Net.Handlers;
+using MediaBrowser.Common.Plugins;
+using MediaBrowser.Common.ScheduledTasks;
+using MediaBrowser.Common.Serialization;
+using MediaBrowser.Model.Configuration;
+using MediaBrowser.Model.Logging;
+using MediaBrowser.Model.System;
+using NLog;
+using NLog.Config;
+using NLog.Targets;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.Composition;
+using System.ComponentModel.Composition.Hosting;
+using System.ComponentModel.Composition.Primitives;
+using System.Deployment.Application;
+using System.Diagnostics;
+using System.IO;
+using System.Linq;
+using System.Reflection;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace MediaBrowser.Common.Kernel
+{
+ /// <summary>
+ /// Represents a shared base kernel for both the Ui and server apps
+ /// </summary>
+ /// <typeparam name="TConfigurationType">The type of the T configuration type.</typeparam>
+ /// <typeparam name="TApplicationPathsType">The type of the T application paths type.</typeparam>
+ public abstract class BaseKernel<TConfigurationType, TApplicationPathsType> : IDisposable, IKernel
+ where TConfigurationType : BaseApplicationConfiguration, new()
+ where TApplicationPathsType : BaseApplicationPaths, new()
+ {
+ /// <summary>
+ /// Occurs when [has pending restart changed].
+ /// </summary>
+ public event EventHandler HasPendingRestartChanged;
+
+ /// <summary>
+ /// Notifiies the containing application that a restart has been requested
+ /// </summary>
+ public event EventHandler ApplicationRestartRequested;
+
+ #region ConfigurationUpdated Event
+ /// <summary>
+ /// Occurs when [configuration updated].
+ /// </summary>
+ public event EventHandler<EventArgs> ConfigurationUpdated;
+
+ /// <summary>
+ /// Called when [configuration updated].
+ /// </summary>
+ internal void OnConfigurationUpdated()
+ {
+ EventHelper.QueueEventIfNotNull(ConfigurationUpdated, this, EventArgs.Empty);
+
+ // Notify connected clients
+ TcpManager.SendWebSocketMessage("ConfigurationUpdated", Configuration);
+ }
+ #endregion
+
+ #region LoggerLoaded Event
+ /// <summary>
+ /// Fires whenever the logger is loaded
+ /// </summary>
+ public event EventHandler LoggerLoaded;
+ /// <summary>
+ /// Called when [logger loaded].
+ /// </summary>
+ private void OnLoggerLoaded()
+ {
+ EventHelper.QueueEventIfNotNull(LoggerLoaded, this, EventArgs.Empty);
+ }
+ #endregion
+
+ #region ReloadBeginning Event
+ /// <summary>
+ /// Fires whenever the kernel begins reloading
+ /// </summary>
+ public event EventHandler<EventArgs> ReloadBeginning;
+ /// <summary>
+ /// Called when [reload beginning].
+ /// </summary>
+ private void OnReloadBeginning()
+ {
+ EventHelper.QueueEventIfNotNull(ReloadBeginning, this, EventArgs.Empty);
+ }
+ #endregion
+
+ #region ReloadCompleted Event
+ /// <summary>
+ /// Fires whenever the kernel completes reloading
+ /// </summary>
+ public event EventHandler<EventArgs> ReloadCompleted;
+ /// <summary>
+ /// Called when [reload completed].
+ /// </summary>
+ private void OnReloadCompleted()
+ {
+ EventHelper.QueueEventIfNotNull(ReloadCompleted, this, EventArgs.Empty);
+ }
+ #endregion
+
+ #region ApplicationUpdated Event
+ /// <summary>
+ /// Occurs when [application updated].
+ /// </summary>
+ public event EventHandler<GenericEventArgs<Version>> ApplicationUpdated;
+ /// <summary>
+ /// Called when [application updated].
+ /// </summary>
+ /// <param name="newVersion">The new version.</param>
+ public void OnApplicationUpdated(Version newVersion)
+ {
+ EventHelper.QueueEventIfNotNull(ApplicationUpdated, this, new GenericEventArgs<Version> {Argument = newVersion});
+
+ NotifyPendingRestart();
+ }
+ #endregion
+
+ /// <summary>
+ /// The _configuration loaded
+ /// </summary>
+ private bool _configurationLoaded;
+ /// <summary>
+ /// The _configuration sync lock
+ /// </summary>
+ private object _configurationSyncLock = new object();
+ /// <summary>
+ /// The _configuration
+ /// </summary>
+ private TConfigurationType _configuration;
+ /// <summary>
+ /// Gets the system configuration
+ /// </summary>
+ /// <value>The configuration.</value>
+ public TConfigurationType Configuration
+ {
+ get
+ {
+ // Lazy load
+ LazyInitializer.EnsureInitialized(ref _configuration, ref _configurationLoaded, ref _configurationSyncLock, () => XmlSerializer.GetXmlConfiguration<TConfigurationType>(ApplicationPaths.SystemConfigurationFilePath));
+ return _configuration;
+ }
+ protected set
+ {
+ _configuration = value;
+
+ if (value == null)
+ {
+ _configurationLoaded = false;
+ }
+ }
+ }
+
+ /// <summary>
+ /// Gets a value indicating whether this instance is first run.
+ /// </summary>
+ /// <value><c>true</c> if this instance is first run; otherwise, <c>false</c>.</value>
+ public bool IsFirstRun { get; private set; }
+
+ /// <summary>
+ /// The version of the application to display
+ /// </summary>
+ /// <value>The display version.</value>
+ public string DisplayVersion { get { return ApplicationVersion.ToString(); } }
+
+ /// <summary>
+ /// Gets or sets a value indicating whether this instance has changes that require the entire application to restart.
+ /// </summary>
+ /// <value><c>true</c> if this instance has pending application restart; otherwise, <c>false</c>.</value>
+ public bool HasPendingRestart { get; private set; }
+
+ /// <summary>
+ /// Gets the application paths.
+ /// </summary>
+ /// <value>The application paths.</value>
+ public TApplicationPathsType ApplicationPaths { get; private set; }
+
+ /// <summary>
+ /// The _failed assembly loads
+ /// </summary>
+ private readonly List<string> _failedPluginAssemblies = new List<string>();
+ /// <summary>
+ /// Gets the plugin assemblies that failed to load.
+ /// </summary>
+ /// <value>The failed assembly loads.</value>
+ public IEnumerable<string> FailedPluginAssemblies
+ {
+ get { return _failedPluginAssemblies; }
+ }
+
+ /// <summary>
+ /// Gets the list of currently loaded plugins
+ /// </summary>
+ /// <value>The plugins.</value>
+ [ImportMany(typeof(IPlugin))]
+ public IEnumerable<IPlugin> Plugins { get; protected set; }
+
+ /// <summary>
+ /// Gets the list of Scheduled Tasks
+ /// </summary>
+ /// <value>The scheduled tasks.</value>
+ [ImportMany(typeof(IScheduledTask))]
+ public IEnumerable<IScheduledTask> ScheduledTasks { get; private set; }
+
+ /// <summary>
+ /// Gets the web socket listeners.
+ /// </summary>
+ /// <value>The web socket listeners.</value>
+ [ImportMany(typeof(IWebSocketListener))]
+ public IEnumerable<IWebSocketListener> WebSocketListeners { get; private set; }
+
+ /// <summary>
+ /// Gets the list of Localized string files
+ /// </summary>
+ /// <value>The string files.</value>
+ [ImportMany(typeof(LocalizedStringData))]
+ public IEnumerable<LocalizedStringData> StringFiles { get; private set; }
+
+ /// <summary>
+ /// Gets the MEF CompositionContainer
+ /// </summary>
+ /// <value>The composition container.</value>
+ private CompositionContainer CompositionContainer { get; set; }
+
+ /// <summary>
+ /// The _HTTP manager
+ /// </summary>
+ /// <value>The HTTP manager.</value>
+ public HttpManager HttpManager { get; private set; }
+
+ /// <summary>
+ /// Gets or sets the TCP manager.
+ /// </summary>
+ /// <value>The TCP manager.</value>
+ public TcpManager TcpManager { get; private set; }
+
+ /// <summary>
+ /// Gets the task manager.
+ /// </summary>
+ /// <value>The task manager.</value>
+ public TaskManager TaskManager { get; private set; }
+
+ /// <summary>
+ /// Gets the iso manager.
+ /// </summary>
+ /// <value>The iso manager.</value>
+ public IIsoManager IsoManager { get; private set; }
+
+ /// <summary>
+ /// Gets the rest services.
+ /// </summary>
+ /// <value>The rest services.</value>
+ [ImportMany(typeof(IRestfulService))]
+ public IEnumerable<IRestfulService> RestServices { get; private set; }
+
+ /// <summary>
+ /// The _protobuf serializer initialized
+ /// </summary>
+ private bool _protobufSerializerInitialized;
+ /// <summary>
+ /// The _protobuf serializer sync lock
+ /// </summary>
+ private object _protobufSerializerSyncLock = new object();
+ /// <summary>
+ /// Gets a dynamically compiled generated serializer that can serialize protocontracts without reflection
+ /// </summary>
+ private DynamicProtobufSerializer _protobufSerializer;
+ /// <summary>
+ /// Gets the protobuf serializer.
+ /// </summary>
+ /// <value>The protobuf serializer.</value>
+ public DynamicProtobufSerializer ProtobufSerializer
+ {
+ get
+ {
+ // Lazy load
+ LazyInitializer.EnsureInitialized(ref _protobufSerializer, ref _protobufSerializerInitialized, ref _protobufSerializerSyncLock, () => DynamicProtobufSerializer.Create(Assemblies));
+ return _protobufSerializer;
+ }
+ private set
+ {
+ _protobufSerializer = value;
+
+ if (value == null)
+ {
+ _protobufSerializerInitialized = false;
+ }
+ }
+ }
+
+ /// <summary>
+ /// Gets the UDP server port number.
+ /// This can't be configurable because then the user would have to configure their client to discover the server.
+ /// </summary>
+ /// <value>The UDP server port number.</value>
+ public abstract int UdpServerPortNumber { get; }
+
+ /// <summary>
+ /// Gets the name of the web application that can be used for url building.
+ /// All api urls will be of the form {protocol}://{host}:{port}/{appname}/...
+ /// </summary>
+ /// <value>The name of the web application.</value>
+ public string WebApplicationName
+ {
+ get { return "mediabrowser"; }
+ }
+
+ /// <summary>
+ /// Gets the HTTP server URL prefix.
+ /// </summary>
+ /// <value>The HTTP server URL prefix.</value>
+ public virtual string HttpServerUrlPrefix
+ {
+ get
+ {
+ return "http://+:" + Configuration.HttpServerPortNumber + "/" + WebApplicationName + "/";
+ }
+ }
+
+ /// <summary>
+ /// Gets the kernel context. Subclasses will have to override.
+ /// </summary>
+ /// <value>The kernel context.</value>
+ public abstract KernelContext KernelContext { get; }
+
+ /// <summary>
+ /// Gets the log file path.
+ /// </summary>
+ /// <value>The log file path.</value>
+ public string LogFilePath { get; private set; }
+
+ /// <summary>
+ /// Gets the logger.
+ /// </summary>
+ /// <value>The logger.</value>
+ protected ILogger Logger { get; private set; }
+
+ /// <summary>
+ /// Gets the assemblies.
+ /// </summary>
+ /// <value>The assemblies.</value>
+ public Assembly[] Assemblies { get; private set; }
+
+ /// <summary>
+ /// Initializes the Kernel
+ /// </summary>
+ /// <param name="isoManager">The iso manager.</param>
+ /// <returns>Task.</returns>
+ public async Task Init(IIsoManager isoManager)
+ {
+ IsoManager = isoManager;
+
+ Logger = Logging.LogManager.GetLogger(GetType().Name);
+
+ ApplicationPaths = new TApplicationPathsType();
+
+ IsFirstRun = !File.Exists(ApplicationPaths.SystemConfigurationFilePath);
+
+ // Performs initializations that can be reloaded at anytime
+ await Reload().ConfigureAwait(false);
+ }
+
+ /// <summary>
+ /// Performs initializations that can be reloaded at anytime
+ /// </summary>
+ /// <returns>Task.</returns>
+ public async Task Reload()
+ {
+ OnReloadBeginning();
+
+ await ReloadInternal().ConfigureAwait(false);
+
+ OnReloadCompleted();
+
+ Logger.Info("Kernel.Reload Complete");
+ }
+
+ /// <summary>
+ /// Performs initializations that can be reloaded at anytime
+ /// </summary>
+ /// <returns>Task.</returns>
+ protected virtual async Task ReloadInternal()
+ {
+ // Set these to null so that they can be lazy loaded again
+ Configuration = null;
+ ProtobufSerializer = null;
+
+ ReloadLogger();
+
+ Logger.Info("Version {0} initializing", ApplicationVersion);
+
+ DisposeHttpManager();
+ HttpManager = new HttpManager(this);
+
+ await OnConfigurationLoaded().ConfigureAwait(false);
+
+ DisposeTaskManager();
+ TaskManager = new TaskManager(this);
+
+ Logger.Info("Loading Plugins");
+ await ReloadComposableParts().ConfigureAwait(false);
+
+ DisposeTcpManager();
+ TcpManager = new TcpManager(this);
+ }
+
+ /// <summary>
+ /// Called when [configuration loaded].
+ /// </summary>
+ /// <returns>Task.</returns>
+ protected virtual Task OnConfigurationLoaded()
+ {
+ return Task.FromResult<object>(null);
+ }
+
+ /// <summary>
+ /// Disposes and reloads all loggers
+ /// </summary>
+ public void ReloadLogger()
+ {
+ DisposeLogger();
+
+ LogFilePath = Path.Combine(ApplicationPaths.LogDirectoryPath, KernelContext + "-" + DateTime.Now.Ticks + ".log");
+
+ var logFile = new FileTarget();
+
+ logFile.FileName = LogFilePath;
+ logFile.Layout = "${longdate}, ${level}, ${logger}, ${message}";
+
+ AddLogTarget(logFile, "ApplicationLogFile");
+
+ Logging.Logger.LoggerInstance = Logging.LogManager.GetLogger("Global");
+
+ OnLoggerLoaded();
+ }
+
+ /// <summary>
+ /// Adds the log target.
+ /// </summary>
+ /// <param name="target">The target.</param>
+ /// <param name="name">The name.</param>
+ private void AddLogTarget(Target target, string name)
+ {
+ var config = LogManager.Configuration;
+
+ config.RemoveTarget(name);
+
+ target.Name = name;
+ config.AddTarget(name, target);
+
+ var level = Configuration.EnableDebugLevelLogging ? LogLevel.Debug : LogLevel.Info;
+
+ var rule = new LoggingRule("*", level, target);
+ config.LoggingRules.Add(rule);
+
+ LogManager.Configuration = config;
+ }
+
+ /// <summary>
+ /// Uses MEF to locate plugins
+ /// Subclasses can use this to locate types within plugins
+ /// </summary>
+ /// <returns>Task.</returns>
+ private async Task ReloadComposableParts()
+ {
+ _failedPluginAssemblies.Clear();
+
+ DisposeComposableParts();
+
+ Assemblies = GetComposablePartAssemblies().ToArray();
+
+ CompositionContainer = MefUtils.GetSafeCompositionContainer(Assemblies.Select(i => new AssemblyCatalog(i)));
+
+ CompositionContainer.ComposeExportedValue("kernel", this);
+
+ CompositionContainer.ComposeParts(this);
+
+ await OnComposablePartsLoaded().ConfigureAwait(false);
+
+ CompositionContainer.Catalog.Dispose();
+ }
+
+ /// <summary>
+ /// Gets the composable part assemblies.
+ /// </summary>
+ /// <returns>IEnumerable{Assembly}.</returns>
+ protected virtual IEnumerable<Assembly> GetComposablePartAssemblies()
+ {
+ // Gets all plugin assemblies by first reading all bytes of the .dll and calling Assembly.Load against that
+ // This will prevent the .dll file from getting locked, and allow us to replace it when needed
+ var pluginAssemblies = Directory.EnumerateFiles(ApplicationPaths.PluginsPath, "*.dll", SearchOption.TopDirectoryOnly)
+ .Select(file =>
+ {
+ try
+ {
+ return Assembly.Load(File.ReadAllBytes((file)));
+ }
+ catch (Exception ex)
+ {
+ _failedPluginAssemblies.Add(file);
+ Logger.ErrorException("Error loading {0}", ex, file);
+ return null;
+ }
+
+ }).Where(a => a != null);
+
+ foreach (var pluginAssembly in pluginAssemblies)
+ {
+ yield return pluginAssembly;
+ }
+
+ // Include composable parts in the Model assembly
+ yield return typeof (SystemInfo).Assembly;
+
+ // Include composable parts in the Common assembly
+ yield return Assembly.GetExecutingAssembly();
+
+ // Include composable parts in the subclass assembly
+ yield return GetType().Assembly;
+ }
+
+ /// <summary>
+ /// Fires after MEF finishes finding composable parts within plugin assemblies
+ /// </summary>
+ /// <returns>Task.</returns>
+ protected virtual Task OnComposablePartsLoaded()
+ {
+ return Task.Run(() =>
+ {
+ foreach (var listener in WebSocketListeners)
+ {
+ listener.Initialize(this);
+ }
+
+ foreach (var task in ScheduledTasks)
+ {
+ task.Initialize(this);
+ }
+
+ // Start-up each plugin
+ Parallel.ForEach(Plugins, plugin =>
+ {
+ Logger.Info("Initializing {0} {1}", plugin.Name, plugin.Version);
+
+ try
+ {
+ plugin.Initialize(this);
+
+ Logger.Info("{0} {1} initialized.", plugin.Name, plugin.Version);
+ }
+ catch (Exception ex)
+ {
+ Logger.ErrorException("Error initializing {0}", ex, plugin.Name);
+ }
+ });
+ });
+ }
+
+ /// <summary>
+ /// Notifies that the kernel that a change has been made that requires a restart
+ /// </summary>
+ public void NotifyPendingRestart()
+ {
+ HasPendingRestart = true;
+
+ TcpManager.SendWebSocketMessage("HasPendingRestartChanged", GetSystemInfo());
+
+ EventHelper.QueueEventIfNotNull(HasPendingRestartChanged, this, EventArgs.Empty);
+ }
+
+ /// <summary>
+ /// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
+ /// </summary>
+ public void Dispose()
+ {
+ Dispose(true);
+ GC.SuppressFinalize(this);
+ }
+
+ /// <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)
+ {
+ if (dispose)
+ {
+ DisposeTcpManager();
+ DisposeTaskManager();
+ DisposeIsoManager();
+ DisposeHttpManager();
+
+ DisposeComposableParts();
+ }
+ }
+
+ /// <summary>
+ /// Disposes the iso manager.
+ /// </summary>
+ private void DisposeIsoManager()
+ {
+ if (IsoManager != null)
+ {
+ IsoManager.Dispose();
+ IsoManager = null;
+ }
+ }
+
+ /// <summary>
+ /// Disposes the TCP manager.
+ /// </summary>
+ private void DisposeTcpManager()
+ {
+ if (TcpManager != null)
+ {
+ TcpManager.Dispose();
+ TcpManager = null;
+ }
+ }
+
+ /// <summary>
+ /// Disposes the task manager.
+ /// </summary>
+ private void DisposeTaskManager()
+ {
+ if (TaskManager != null)
+ {
+ TaskManager.Dispose();
+ TaskManager = null;
+ }
+ }
+
+ /// <summary>
+ /// Disposes the HTTP manager.
+ /// </summary>
+ private void DisposeHttpManager()
+ {
+ if (HttpManager != null)
+ {
+ HttpManager.Dispose();
+ HttpManager = null;
+ }
+ }
+
+ /// <summary>
+ /// Disposes all objects gathered through MEF composable parts
+ /// </summary>
+ protected virtual void DisposeComposableParts()
+ {
+ if (CompositionContainer != null)
+ {
+ CompositionContainer.Dispose();
+ }
+ }
+
+ /// <summary>
+ /// Disposes all logger resources
+ /// </summary>
+ private void DisposeLogger()
+ {
+ // Dispose all current loggers
+ var listeners = Trace.Listeners.OfType<TraceListener>().ToList();
+
+ Trace.Listeners.Clear();
+
+ foreach (var listener in listeners)
+ {
+ listener.Dispose();
+ }
+
+ }
+
+ /// <summary>
+ /// Gets the current application version
+ /// </summary>
+ /// <value>The application version.</value>
+ public Version ApplicationVersion
+ {
+ get
+ {
+ return GetType().Assembly.GetName().Version;
+ }
+ }
+
+ /// <summary>
+ /// Performs the pending restart.
+ /// </summary>
+ /// <returns>Task.</returns>
+ public void PerformPendingRestart()
+ {
+ if (HasPendingRestart)
+ {
+ RestartApplication();
+ }
+ else
+ {
+ Logger.Info("PerformPendingRestart - not needed");
+ }
+ }
+
+ /// <summary>
+ /// Restarts the application.
+ /// </summary>
+ protected void RestartApplication()
+ {
+ Logger.Info("Restarting the application");
+
+ EventHelper.QueueEventIfNotNull(ApplicationRestartRequested, this, EventArgs.Empty);
+ }
+
+ /// <summary>
+ /// Gets the system status.
+ /// </summary>
+ /// <returns>SystemInfo.</returns>
+ public virtual SystemInfo GetSystemInfo()
+ {
+ return new SystemInfo
+ {
+ HasPendingRestart = HasPendingRestart,
+ Version = DisplayVersion,
+ IsNetworkDeployed = ApplicationDeployment.IsNetworkDeployed,
+ WebSocketPortNumber = TcpManager.WebSocketPortNumber,
+ SupportsNativeWebSocket = TcpManager.SupportsNativeWebSocket,
+ FailedPluginAssemblies = FailedPluginAssemblies.ToArray()
+ };
+ }
+
+ /// <summary>
+ /// The _save lock
+ /// </summary>
+ private readonly object _configurationSaveLock = new object();
+
+ /// <summary>
+ /// Saves the current configuration
+ /// </summary>
+ public void SaveConfiguration()
+ {
+ lock (_configurationSaveLock)
+ {
+ XmlSerializer.SerializeToFile(Configuration, ApplicationPaths.SystemConfigurationFilePath);
+ }
+
+ OnConfigurationUpdated();
+ }
+
+ /// <summary>
+ /// Gets the application paths.
+ /// </summary>
+ /// <value>The application paths.</value>
+ BaseApplicationPaths IKernel.ApplicationPaths
+ {
+ get { return ApplicationPaths; }
+ }
+ /// <summary>
+ /// Gets the configuration.
+ /// </summary>
+ /// <value>The configuration.</value>
+ BaseApplicationConfiguration IKernel.Configuration
+ {
+ get { return Configuration; }
+ }
+ }
+}
generated by cgit v1.2.3 (git 2.46.0) at 2025-12-06 16:09:24 +0000