diff options
Diffstat (limited to 'MediaBrowser.Controller/Providers/ProviderManager.cs')
| -rw-r--r-- | MediaBrowser.Controller/Providers/ProviderManager.cs | 372 |
1 files changed, 0 insertions, 372 deletions
diff --git a/MediaBrowser.Controller/Providers/ProviderManager.cs b/MediaBrowser.Controller/Providers/ProviderManager.cs deleted file mode 100644 index 0df5f64d3..000000000 --- a/MediaBrowser.Controller/Providers/ProviderManager.cs +++ /dev/null @@ -1,372 +0,0 @@ -using MediaBrowser.Common.Configuration; -using MediaBrowser.Common.Extensions; -using MediaBrowser.Common.IO; -using MediaBrowser.Common.Net; -using MediaBrowser.Controller.Configuration; -using MediaBrowser.Controller.Entities; -using MediaBrowser.Model.Logging; -using System; -using System.Collections.Concurrent; -using System.Collections.Generic; -using System.IO; -using System.Linq; -using System.Threading; -using System.Threading.Tasks; - -namespace MediaBrowser.Controller.Providers -{ - /// <summary> - /// Class ProviderManager - /// </summary> - public class ProviderManager : IDisposable - { - /// <summary> - /// The remote image cache - /// </summary> - private readonly FileSystemRepository _remoteImageCache; - - /// <summary> - /// The currently running metadata providers - /// </summary> - private readonly ConcurrentDictionary<string, Tuple<BaseMetadataProvider, BaseItem, CancellationTokenSource>> _currentlyRunningProviders = - new ConcurrentDictionary<string, Tuple<BaseMetadataProvider, BaseItem, CancellationTokenSource>>(); - - /// <summary> - /// The _logger - /// </summary> - private readonly ILogger _logger; - - /// <summary> - /// The _HTTP client - /// </summary> - private readonly IHttpClient _httpClient; - - private IServerConfigurationManager ConfigurationManager { get; set; } - - private Kernel Kernel { get; set; } - - /// <summary> - /// Initializes a new instance of the <see cref="ProviderManager" /> class. - /// </summary> - /// <param name="kernel">The kernel.</param> - /// <param name="httpClient">The HTTP client.</param> - /// <param name="logger">The logger.</param> - public ProviderManager(Kernel kernel, IHttpClient httpClient, ILogger logger, IServerConfigurationManager configurationManager) - { - _logger = logger; - Kernel = kernel; - _httpClient = httpClient; - ConfigurationManager = configurationManager; - _remoteImageCache = new FileSystemRepository(ImagesDataPath); - - configurationManager.ConfigurationUpdated += configurationManager_ConfigurationUpdated; - } - - /// <summary> - /// Handles the ConfigurationUpdated event of the configurationManager control. - /// </summary> - /// <param name="sender">The source of the event.</param> - /// <param name="e">The <see cref="EventArgs" /> instance containing the event data.</param> - void configurationManager_ConfigurationUpdated(object sender, EventArgs e) - { - // Validate currently executing providers, in the background - Task.Run(() => - { - ValidateCurrentlyRunningProviders(); - }); - } - - /// <summary> - /// The _images data path - /// </summary> - private string _imagesDataPath; - /// <summary> - /// Gets the images data path. - /// </summary> - /// <value>The images data path.</value> - public string ImagesDataPath - { - get - { - if (_imagesDataPath == null) - { - _imagesDataPath = Path.Combine(ConfigurationManager.ApplicationPaths.DataPath, "remote-images"); - - if (!Directory.Exists(_imagesDataPath)) - { - Directory.CreateDirectory(_imagesDataPath); - } - } - - return _imagesDataPath; - } - } - - /// <summary> - /// Gets or sets the supported providers key. - /// </summary> - /// <value>The supported providers key.</value> - private Guid SupportedProvidersKey { get; set; } - - /// <summary> - /// Runs all metadata providers for an entity, and returns true or false indicating if at least one was refreshed and requires persistence - /// </summary> - /// <param name="item">The item.</param> - /// <param name="cancellationToken">The cancellation token.</param> - /// <param name="force">if set to <c>true</c> [force].</param> - /// <param name="allowSlowProviders">if set to <c>true</c> [allow slow providers].</param> - /// <returns>Task{System.Boolean}.</returns> - internal async Task<bool> ExecuteMetadataProviders(BaseItem item, CancellationToken cancellationToken, bool force = false, bool allowSlowProviders = true) - { - // Allow providers of the same priority to execute in parallel - MetadataProviderPriority? currentPriority = null; - var currentTasks = new List<Task<bool>>(); - - var result = false; - - cancellationToken.ThrowIfCancellationRequested(); - - // Determine if supported providers have changed - var supportedProviders = Kernel.MetadataProviders.Where(p => p.Supports(item)).ToList(); - - BaseProviderInfo supportedProvidersInfo; - - if (SupportedProvidersKey == Guid.Empty) - { - SupportedProvidersKey = "SupportedProviders".GetMD5(); - } - - var supportedProvidersHash = string.Join("+", supportedProviders.Select(i => i.GetType().Name)).GetMD5(); - bool providersChanged; - - item.ProviderData.TryGetValue(SupportedProvidersKey, out supportedProvidersInfo); - if (supportedProvidersInfo == null) - { - // First time - supportedProvidersInfo = new BaseProviderInfo { ProviderId = SupportedProvidersKey, FileSystemStamp = supportedProvidersHash }; - providersChanged = force = true; - } - else - { - // Force refresh if the supported providers have changed - providersChanged = force = force || supportedProvidersInfo.FileSystemStamp != supportedProvidersHash; - } - - // If providers have changed, clear provider info and update the supported providers hash - if (providersChanged) - { - _logger.Debug("Providers changed for {0}. Clearing and forcing refresh.", item.Name); - item.ProviderData.Clear(); - supportedProvidersInfo.FileSystemStamp = supportedProvidersHash; - } - - if (force) item.ClearMetaValues(); - - // Run the normal providers sequentially in order of priority - foreach (var provider in supportedProviders) - { - cancellationToken.ThrowIfCancellationRequested(); - - // Skip if internet providers are currently disabled - if (provider.RequiresInternet && !ConfigurationManager.Configuration.EnableInternetProviders) - { - continue; - } - - // Skip if is slow and we aren't allowing slow ones - if (provider.IsSlow && !allowSlowProviders) - { - continue; - } - - // Skip if internet provider and this type is not allowed - if (provider.RequiresInternet && ConfigurationManager.Configuration.EnableInternetProviders && ConfigurationManager.Configuration.InternetProviderExcludeTypes.Contains(item.GetType().Name, StringComparer.OrdinalIgnoreCase)) - { - continue; - } - - // When a new priority is reached, await the ones that are currently running and clear the list - if (currentPriority.HasValue && currentPriority.Value != provider.Priority && currentTasks.Count > 0) - { - var results = await Task.WhenAll(currentTasks).ConfigureAwait(false); - result |= results.Contains(true); - - currentTasks.Clear(); - } - - // Put this check below the await because the needs refresh of the next tier of providers may depend on the previous ones running - // This is the case for the fan art provider which depends on the movie and tv providers having run before them - if (!force && !provider.NeedsRefresh(item)) - { - continue; - } - - currentTasks.Add(provider.FetchAsync(item, force, cancellationToken)); - currentPriority = provider.Priority; - } - - if (currentTasks.Count > 0) - { - var results = await Task.WhenAll(currentTasks).ConfigureAwait(false); - result |= results.Contains(true); - } - - if (providersChanged) - { - item.ProviderData[SupportedProvidersKey] = supportedProvidersInfo; - } - - return result || providersChanged; - } - - /// <summary> - /// Notifies the kernal that a provider has begun refreshing - /// </summary> - /// <param name="provider">The provider.</param> - /// <param name="item">The item.</param> - /// <param name="cancellationTokenSource">The cancellation token source.</param> - internal void OnProviderRefreshBeginning(BaseMetadataProvider provider, BaseItem item, CancellationTokenSource cancellationTokenSource) - { - var key = item.Id + provider.GetType().Name; - - Tuple<BaseMetadataProvider, BaseItem, CancellationTokenSource> current; - - if (_currentlyRunningProviders.TryGetValue(key, out current)) - { - try - { - current.Item3.Cancel(); - } - catch (ObjectDisposedException) - { - - } - } - - var tuple = new Tuple<BaseMetadataProvider, BaseItem, CancellationTokenSource>(provider, item, cancellationTokenSource); - - _currentlyRunningProviders.AddOrUpdate(key, tuple, (k, v) => tuple); - } - - /// <summary> - /// Notifies the kernal that a provider has completed refreshing - /// </summary> - /// <param name="provider">The provider.</param> - /// <param name="item">The item.</param> - internal void OnProviderRefreshCompleted(BaseMetadataProvider provider, BaseItem item) - { - var key = item.Id + provider.GetType().Name; - - Tuple<BaseMetadataProvider, BaseItem, CancellationTokenSource> current; - - if (_currentlyRunningProviders.TryRemove(key, out current)) - { - current.Item3.Dispose(); - } - } - - /// <summary> - /// Validates the currently running providers and cancels any that should not be run due to configuration changes - /// </summary> - internal void ValidateCurrentlyRunningProviders() - { - _logger.Info("Validing currently running providers"); - - var enableInternetProviders = ConfigurationManager.Configuration.EnableInternetProviders; - var internetProviderExcludeTypes = ConfigurationManager.Configuration.InternetProviderExcludeTypes; - - foreach (var tuple in _currentlyRunningProviders.Values - .Where(p => p.Item1.RequiresInternet && (!enableInternetProviders || internetProviderExcludeTypes.Contains(p.Item2.GetType().Name, StringComparer.OrdinalIgnoreCase))) - .ToList()) - { - tuple.Item3.Cancel(); - } - } - - /// <summary> - /// Downloads the and save image. - /// </summary> - /// <param name="item">The item.</param> - /// <param name="source">The source.</param> - /// <param name="targetName">Name of the target.</param> - /// <param name="resourcePool">The resource pool.</param> - /// <param name="cancellationToken">The cancellation token.</param> - /// <returns>Task{System.String}.</returns> - /// <exception cref="System.ArgumentNullException">item</exception> - public async Task<string> DownloadAndSaveImage(BaseItem item, string source, string targetName, SemaphoreSlim resourcePool, CancellationToken cancellationToken) - { - if (item == null) - { - throw new ArgumentNullException("item"); - } - if (string.IsNullOrEmpty(source)) - { - throw new ArgumentNullException("source"); - } - if (string.IsNullOrEmpty(targetName)) - { - throw new ArgumentNullException("targetName"); - } - if (resourcePool == null) - { - throw new ArgumentNullException("resourcePool"); - } - - //download and save locally - var localPath = ConfigurationManager.Configuration.SaveLocalMeta ? - Path.Combine(item.MetaLocation, targetName) : - _remoteImageCache.GetResourcePath(item.GetType().FullName + item.Path.ToLower(), targetName); - - var img = await _httpClient.GetMemoryStream(source, resourcePool, cancellationToken).ConfigureAwait(false); - - if (ConfigurationManager.Configuration.SaveLocalMeta) // queue to media directories - { - await Kernel.FileSystemManager.SaveToLibraryFilesystem(item, localPath, img, cancellationToken).ConfigureAwait(false); - } - else - { - // we can write directly here because it won't affect the watchers - - try - { - using (var fs = new FileStream(localPath, FileMode.Create, FileAccess.Write, FileShare.Read, StreamDefaults.DefaultFileStreamBufferSize, FileOptions.Asynchronous)) - { - await img.CopyToAsync(fs, StreamDefaults.DefaultCopyToBufferSize, cancellationToken).ConfigureAwait(false); - } - } - catch (OperationCanceledException) - { - throw; - } - catch (Exception e) - { - _logger.ErrorException("Error downloading and saving image " + localPath, e); - throw; - } - finally - { - img.Dispose(); - } - - } - return localPath; - } - - /// <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) - { - _remoteImageCache.Dispose(); - } - } - - public void Dispose() - { - Dispose(true); - } - } -} |
