648 lines
26 KiB
C#
648 lines
26 KiB
C#
using MediaBrowser.Common.Extensions;
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using MediaBrowser.Common.IO;
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using MediaBrowser.Controller.Configuration;
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using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.Library;
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using MediaBrowser.Controller.Providers;
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using MediaBrowser.Model.Entities;
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using MediaBrowser.Model.Logging;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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namespace MediaBrowser.Providers.Manager
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{
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public abstract class MetadataService<TItemType, TIdType> : IMetadataService
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where TItemType : IHasMetadata, IHasLookupInfo<TIdType>, new()
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where TIdType : ItemLookupInfo, new()
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{
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protected readonly IServerConfigurationManager ServerConfigurationManager;
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protected readonly ILogger Logger;
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protected readonly IProviderManager ProviderManager;
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protected readonly IProviderRepository ProviderRepo;
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protected readonly IFileSystem FileSystem;
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protected readonly IUserDataManager UserDataManager;
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protected MetadataService(IServerConfigurationManager serverConfigurationManager, ILogger logger, IProviderManager providerManager, IProviderRepository providerRepo, IFileSystem fileSystem, IUserDataManager userDataManager)
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{
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ServerConfigurationManager = serverConfigurationManager;
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Logger = logger;
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ProviderManager = providerManager;
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ProviderRepo = providerRepo;
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FileSystem = fileSystem;
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UserDataManager = userDataManager;
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}
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/// <summary>
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/// Saves the provider result.
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/// </summary>
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/// <param name="item">The item.</param>
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/// <param name="result">The result.</param>
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/// <param name="directoryService">The directory service.</param>
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/// <returns>Task.</returns>
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protected Task SaveProviderResult(TItemType item, MetadataStatus result, IDirectoryService directoryService)
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{
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result.ItemId = item.Id;
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result.ItemName = item.Name;
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result.ItemType = item.GetType().Name;
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var series = item as IHasSeries;
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result.SeriesName = series == null ? null : series.SeriesName;
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//var locationType = item.LocationType;
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//if (locationType == LocationType.FileSystem || locationType == LocationType.Offline)
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//{
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// if (!string.IsNullOrWhiteSpace(item.Path))
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// {
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// var file = directoryService.GetFile(item.Path);
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// if ((file.Attributes & FileAttributes.Directory) != FileAttributes.Directory && file.Exists)
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// {
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// result.ItemDateModified = FileSystem.GetLastWriteTimeUtc(file);
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// }
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// }
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//}
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result.ItemDateModified = item.DateModified;
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return ProviderRepo.SaveMetadataStatus(result, CancellationToken.None);
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}
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/// <summary>
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/// Gets the last result.
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/// </summary>
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/// <param name="item">The item.</param>
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/// <returns>ProviderResult.</returns>
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protected MetadataStatus GetLastResult(IHasMetadata item)
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{
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if (item.DateLastSaved == default(DateTime))
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{
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return new MetadataStatus { ItemId = item.Id };
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}
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return ProviderRepo.GetMetadataStatus(item.Id) ?? new MetadataStatus { ItemId = item.Id };
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}
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public async Task RefreshMetadata(IHasMetadata item, MetadataRefreshOptions refreshOptions, CancellationToken cancellationToken)
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{
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if (refreshOptions.DirectoryService == null)
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{
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refreshOptions.DirectoryService = new DirectoryService(Logger);
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}
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var itemOfType = (TItemType)item;
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var config = ProviderManager.GetMetadataOptions(item);
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var updateType = ItemUpdateType.None;
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var refreshResult = GetLastResult(item);
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refreshResult.LastErrorMessage = string.Empty;
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refreshResult.LastStatus = ProviderRefreshStatus.Success;
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var itemImageProvider = new ItemImageProvider(Logger, ProviderManager, ServerConfigurationManager, FileSystem);
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var localImagesFailed = false;
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var allImageProviders = ((ProviderManager)ProviderManager).GetImageProviders(item).ToList();
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// Start by validating images
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try
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{
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// Always validate images and check for new locally stored ones.
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if (itemImageProvider.ValidateImages(item, allImageProviders.OfType<ILocalImageProvider>(), refreshOptions.DirectoryService))
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{
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updateType = updateType | ItemUpdateType.ImageUpdate;
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}
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}
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catch (Exception ex)
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{
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localImagesFailed = true;
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Logger.ErrorException("Error validating images for {0}", ex, item.Path ?? item.Name);
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refreshResult.AddStatus(ProviderRefreshStatus.Failure, ex.Message);
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}
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// Next run metadata providers
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if (refreshOptions.MetadataRefreshMode != MetadataRefreshMode.None)
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{
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var providers = GetProviders(item, refreshResult, refreshOptions)
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.ToList();
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if (providers.Count > 0 || !refreshResult.DateLastMetadataRefresh.HasValue)
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{
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if (item.BeforeMetadataRefresh())
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{
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updateType = updateType | ItemUpdateType.MetadataImport;
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}
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}
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if (providers.Count > 0)
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{
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var id = await CreateInitialLookupInfo(itemOfType, cancellationToken).ConfigureAwait(false);
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var result = await RefreshWithProviders(itemOfType, id, refreshOptions, providers, itemImageProvider, cancellationToken).ConfigureAwait(false);
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updateType = updateType | result.UpdateType;
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refreshResult.AddStatus(result.Status, result.ErrorMessage);
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refreshResult.SetDateLastMetadataRefresh(DateTime.UtcNow);
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refreshResult.AddMetadataProvidersRefreshed(result.Providers);
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MergeIdentities(itemOfType, id);
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}
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}
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// Next run remote image providers, but only if local image providers didn't throw an exception
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if (!localImagesFailed && refreshOptions.ImageRefreshMode != ImageRefreshMode.ValidationOnly)
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{
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var providers = GetNonLocalImageProviders(item, allImageProviders, refreshResult, refreshOptions).ToList();
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if (providers.Count > 0)
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{
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var result = await itemImageProvider.RefreshImages(itemOfType, providers, refreshOptions, config, cancellationToken).ConfigureAwait(false);
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updateType = updateType | result.UpdateType;
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refreshResult.AddStatus(result.Status, result.ErrorMessage);
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refreshResult.SetDateLastImagesRefresh(DateTime.UtcNow);
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refreshResult.AddImageProvidersRefreshed(result.Providers);
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}
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}
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updateType = updateType | BeforeSave(itemOfType);
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var providersHadChanges = updateType > ItemUpdateType.None;
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// Save if changes were made, or it's never been saved before
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if (refreshOptions.ForceSave || providersHadChanges || item.DateLastSaved == default(DateTime) || refreshOptions.ReplaceAllMetadata)
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{
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if (refreshOptions.ForceSave || providersHadChanges || refreshOptions.ReplaceAllMetadata)
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{
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updateType = updateType | ItemUpdateType.MetadataDownload;
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}
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// Save to database
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await SaveItem(itemOfType, updateType, cancellationToken);
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}
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if (providersHadChanges || refreshResult.IsDirty)
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{
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await SaveProviderResult(itemOfType, refreshResult, refreshOptions.DirectoryService).ConfigureAwait(false);
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}
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}
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private void MergeIdentities(TItemType item, TIdType id)
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{
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var hasIdentity = id as IHasIdentities<IItemIdentity>;
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if (hasIdentity != null)
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{
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item.Identities = hasIdentity.Identities.ToList();
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}
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}
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/// <summary>
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/// Befores the save.
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/// </summary>
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/// <param name="item">The item.</param>
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/// <returns>ItemUpdateType.</returns>
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protected virtual ItemUpdateType BeforeSave(TItemType item)
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{
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return ItemUpdateType.None;
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}
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/// <summary>
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/// Gets the providers.
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/// </summary>
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/// <param name="item">The item.</param>
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/// <param name="status">The status.</param>
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/// <param name="options">The options.</param>
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/// <returns>IEnumerable{`0}.</returns>
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protected IEnumerable<IMetadataProvider> GetProviders(IHasMetadata item, MetadataStatus status, MetadataRefreshOptions options)
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{
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// Get providers to refresh
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var providers = ((ProviderManager)ProviderManager).GetMetadataProviders<TItemType>(item).ToList();
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// Run all if either of these flags are true
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var runAllProviders = options.ReplaceAllMetadata || options.MetadataRefreshMode == MetadataRefreshMode.FullRefresh || !status.DateLastMetadataRefresh.HasValue;
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if (!runAllProviders)
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{
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// Avoid implicitly captured closure
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var currentItem = item;
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var providersWithChanges = providers
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.Where(i =>
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{
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var hasChangeMonitor = i as IHasChangeMonitor;
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if (hasChangeMonitor != null)
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{
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return HasChanged(item, hasChangeMonitor, currentItem.DateLastSaved, options.DirectoryService);
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}
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var hasFileChangeMonitor = i as IHasItemChangeMonitor;
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if (hasFileChangeMonitor != null)
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{
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return HasChanged(item, hasFileChangeMonitor, status, options.DirectoryService);
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}
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return false;
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})
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.ToList();
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if (providersWithChanges.Count == 0)
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{
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providers = new List<IMetadataProvider<TItemType>>();
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}
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else
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{
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providers = providers.Where(i =>
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{
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// If any provider reports a change, always run local ones as well
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if (i is ILocalMetadataProvider)
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{
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return true;
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}
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var anyRemoteProvidersChanged = providersWithChanges.OfType<IRemoteMetadataProvider>()
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.Any();
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// If any remote providers changed, run them all so that priorities can be honored
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if (i is IRemoteMetadataProvider)
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{
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return anyRemoteProvidersChanged;
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}
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// Run custom providers if they report a change or any remote providers change
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return anyRemoteProvidersChanged || providersWithChanges.Contains(i);
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}).ToList();
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}
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}
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return providers;
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}
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protected virtual IEnumerable<IImageProvider> GetNonLocalImageProviders(IHasMetadata item, IEnumerable<IImageProvider> allImageProviders, MetadataStatus status, ImageRefreshOptions options)
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{
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// Get providers to refresh
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var providers = allImageProviders.Where(i => !(i is ILocalImageProvider)).ToList();
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// Run all if either of these flags are true
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var runAllProviders = options.ImageRefreshMode == ImageRefreshMode.FullRefresh || !status.DateLastImagesRefresh.HasValue;
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if (!runAllProviders)
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{
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providers = providers
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.Where(i =>
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{
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var hasChangeMonitor = i as IHasChangeMonitor;
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if (hasChangeMonitor != null)
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{
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return HasChanged(item, hasChangeMonitor, status.DateLastImagesRefresh.Value, options.DirectoryService);
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}
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var hasFileChangeMonitor = i as IHasItemChangeMonitor;
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if (hasFileChangeMonitor != null)
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{
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return HasChanged(item, hasFileChangeMonitor, status, options.DirectoryService);
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}
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return false;
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})
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.ToList();
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}
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return providers;
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}
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protected Task SaveItem(TItemType item, ItemUpdateType reason, CancellationToken cancellationToken)
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{
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return item.UpdateToRepository(reason, cancellationToken);
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}
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public bool CanRefresh(IHasMetadata item)
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{
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return item is TItemType;
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}
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protected virtual async Task<RefreshResult> RefreshWithProviders(TItemType item, TIdType id, MetadataRefreshOptions options, List<IMetadataProvider> providers, ItemImageProvider imageService, CancellationToken cancellationToken)
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{
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var refreshResult = new RefreshResult
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{
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UpdateType = ItemUpdateType.None,
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Providers = providers.Select(i => i.GetType().FullName.GetMD5()).ToList()
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};
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var customProviders = providers.OfType<ICustomMetadataProvider<TItemType>>().ToList();
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var logName = item.LocationType == LocationType.Remote ? item.Name ?? item.Path : item.Path ?? item.Name;
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foreach (var provider in customProviders.Where(i => i is IPreRefreshProvider))
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{
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await RunCustomProvider(provider, item, logName, options, refreshResult, cancellationToken).ConfigureAwait(false);
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}
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var temp = CreateNew();
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temp.Path = item.Path;
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var successfulProviderCount = 0;
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var failedProviderCount = 0;
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// If replacing all metadata, run internet providers first
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if (options.ReplaceAllMetadata)
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{
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var remoteResult = await ExecuteRemoteProviders(item, temp, logName, id, providers.OfType<IRemoteMetadataProvider<TItemType, TIdType>>(), cancellationToken)
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.ConfigureAwait(false);
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refreshResult.UpdateType = refreshResult.UpdateType | remoteResult.UpdateType;
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refreshResult.Status = remoteResult.Status;
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refreshResult.ErrorMessage = remoteResult.ErrorMessage;
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successfulProviderCount += remoteResult.Successes;
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failedProviderCount += remoteResult.Failures;
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}
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var hasLocalMetadata = false;
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var userDataList = new List<UserItemData>();
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foreach (var provider in providers.OfType<ILocalMetadataProvider<TItemType>>())
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{
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var providerName = provider.GetType().Name;
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Logger.Debug("Running {0} for {1}", providerName, logName);
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var itemInfo = new ItemInfo { Path = item.Path, IsInMixedFolder = item.IsInMixedFolder };
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try
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{
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var localItem = await provider.GetMetadata(itemInfo, cancellationToken).ConfigureAwait(false);
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if (localItem.HasMetadata)
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{
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if (imageService.MergeImages(item, localItem.Images))
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{
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refreshResult.UpdateType = refreshResult.UpdateType | ItemUpdateType.ImageUpdate;
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}
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userDataList = localItem.UserDataLIst;
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MergeData(localItem.Item, temp, new List<MetadataFields>(), !options.ReplaceAllMetadata, true);
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refreshResult.UpdateType = refreshResult.UpdateType | ItemUpdateType.MetadataImport;
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// Only one local provider allowed per item
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hasLocalMetadata = true;
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successfulProviderCount++;
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break;
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}
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Logger.Debug("{0} returned no metadata for {1}", providerName, logName);
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}
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catch (OperationCanceledException)
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{
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throw;
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}
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catch (Exception ex)
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{
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failedProviderCount++;
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Logger.ErrorException("Error in {0}", ex, provider.Name);
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// If a local provider fails, consider that a failure
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refreshResult.Status = ProviderRefreshStatus.Failure;
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refreshResult.ErrorMessage = ex.Message;
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if (options.MetadataRefreshMode != MetadataRefreshMode.FullRefresh)
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{
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// If the local provider fails don't continue with remote providers because the user's saved metadata could be lost
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return refreshResult;
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}
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}
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}
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// Local metadata is king - if any is found don't run remote providers
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if (!options.ReplaceAllMetadata && (!hasLocalMetadata || options.MetadataRefreshMode == MetadataRefreshMode.FullRefresh))
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{
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var remoteResult = await ExecuteRemoteProviders(item, temp, logName, id, providers.OfType<IRemoteMetadataProvider<TItemType, TIdType>>(), cancellationToken)
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.ConfigureAwait(false);
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refreshResult.UpdateType = refreshResult.UpdateType | remoteResult.UpdateType;
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if (remoteResult.Status != ProviderRefreshStatus.Success)
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{
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refreshResult.Status = remoteResult.Status;
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refreshResult.ErrorMessage = remoteResult.ErrorMessage;
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}
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successfulProviderCount += remoteResult.Successes;
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}
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if (refreshResult.UpdateType > ItemUpdateType.None)
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{
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MergeData(temp, item, item.LockedFields, true, true);
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}
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var isUnidentified = failedProviderCount > 0 && successfulProviderCount == 0;
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if (item.IsUnidentified != isUnidentified)
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{
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item.IsUnidentified = isUnidentified;
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refreshResult.UpdateType = refreshResult.UpdateType | ItemUpdateType.MetadataImport;
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}
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foreach (var provider in customProviders.Where(i => !(i is IPreRefreshProvider)))
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{
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await RunCustomProvider(provider, item, logName, options, refreshResult, cancellationToken).ConfigureAwait(false);
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}
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await ImportUserData(item, userDataList, cancellationToken).ConfigureAwait(false);
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return refreshResult;
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}
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private async Task ImportUserData(TItemType item, List<UserItemData> userDataList, CancellationToken cancellationToken)
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{
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var hasUserData = item as IHasUserData;
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if (hasUserData != null)
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{
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foreach (var userData in userDataList)
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{
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await UserDataManager.SaveUserData(userData.UserId, hasUserData, userData, UserDataSaveReason.Import, cancellationToken)
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.ConfigureAwait(false);
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}
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}
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}
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private async Task RunCustomProvider(ICustomMetadataProvider<TItemType> provider, TItemType item, string logName, MetadataRefreshOptions options, RefreshResult refreshResult, CancellationToken cancellationToken)
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{
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Logger.Debug("Running {0} for {1}", provider.GetType().Name, logName);
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try
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{
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refreshResult.UpdateType = refreshResult.UpdateType | await provider.FetchAsync(item, options, cancellationToken).ConfigureAwait(false);
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}
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catch (OperationCanceledException)
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{
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throw;
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}
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catch (Exception ex)
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{
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refreshResult.Status = ProviderRefreshStatus.Failure;
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refreshResult.ErrorMessage = ex.Message;
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Logger.ErrorException("Error in {0}", ex, provider.Name);
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}
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}
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protected virtual TItemType CreateNew()
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{
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return new TItemType();
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}
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private async Task<RefreshResult> ExecuteRemoteProviders(TItemType item, TItemType temp, string logName, TIdType id, IEnumerable<IRemoteMetadataProvider<TItemType, TIdType>> providers, CancellationToken cancellationToken)
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{
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var refreshResult = new RefreshResult();
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foreach (var provider in providers)
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{
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var providerName = provider.GetType().Name;
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Logger.Debug("Running {0} for {1}", providerName, logName);
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if (id != null)
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{
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MergeNewData(temp, id);
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}
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try
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{
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var result = await provider.GetMetadata(id, cancellationToken).ConfigureAwait(false);
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if (result.HasMetadata)
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{
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NormalizeRemoteResult(result.Item);
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MergeData(result.Item, temp, new List<MetadataFields>(), false, false);
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refreshResult.UpdateType = refreshResult.UpdateType | ItemUpdateType.MetadataDownload;
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refreshResult.Successes++;
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}
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else
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{
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refreshResult.Failures++;
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Logger.Debug("{0} returned no metadata for {1}", providerName, logName);
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}
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}
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catch (OperationCanceledException)
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{
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throw;
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}
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catch (Exception ex)
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{
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refreshResult.Failures++;
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refreshResult.Status = ProviderRefreshStatus.CompletedWithErrors;
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refreshResult.ErrorMessage = ex.Message;
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Logger.ErrorException("Error in {0}", ex, provider.Name);
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}
|
|
}
|
|
|
|
if (refreshResult.Successes > 0)
|
|
{
|
|
AfterRemoteRefresh(temp);
|
|
}
|
|
|
|
return refreshResult;
|
|
}
|
|
|
|
private void NormalizeRemoteResult(TItemType item)
|
|
{
|
|
if (!ServerConfigurationManager.Configuration.FindInternetTrailers)
|
|
{
|
|
var hasTrailers = item as IHasTrailers;
|
|
|
|
if (hasTrailers != null)
|
|
{
|
|
hasTrailers.RemoteTrailers.Clear();
|
|
}
|
|
}
|
|
}
|
|
|
|
protected virtual void AfterRemoteRefresh(TItemType item)
|
|
{
|
|
|
|
}
|
|
|
|
private async Task<TIdType> CreateInitialLookupInfo(TItemType item, CancellationToken cancellationToken)
|
|
{
|
|
var info = item.GetLookupInfo();
|
|
|
|
var hasIdentity = info as IHasIdentities<IItemIdentity>;
|
|
if (hasIdentity != null)
|
|
{
|
|
try
|
|
{
|
|
await hasIdentity.FindIdentities(ProviderManager, cancellationToken).ConfigureAwait(false);
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
Logger.ErrorException("Error in identity providers", ex);
|
|
}
|
|
}
|
|
|
|
return info;
|
|
}
|
|
|
|
private void MergeNewData(TItemType source, TIdType lookupInfo)
|
|
{
|
|
// Copy new provider id's that may have been obtained
|
|
foreach (var providerId in source.ProviderIds)
|
|
{
|
|
var key = providerId.Key;
|
|
|
|
// Don't replace existing Id's.
|
|
if (!lookupInfo.ProviderIds.ContainsKey(key))
|
|
{
|
|
lookupInfo.ProviderIds[key] = providerId.Value;
|
|
}
|
|
}
|
|
}
|
|
|
|
protected abstract void MergeData(TItemType source, TItemType target, List<MetadataFields> lockedFields, bool replaceData, bool mergeMetadataSettings);
|
|
|
|
public virtual int Order
|
|
{
|
|
get
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
private bool HasChanged(IHasMetadata item, IHasItemChangeMonitor changeMonitor, MetadataStatus status, IDirectoryService directoryService)
|
|
{
|
|
try
|
|
{
|
|
return changeMonitor.HasChanged(item, status, directoryService);
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
Logger.ErrorException("Error in {0}.HasChanged", ex, changeMonitor.GetType().Name);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
private bool HasChanged(IHasMetadata item, IHasChangeMonitor changeMonitor, DateTime date, IDirectoryService directoryService)
|
|
{
|
|
try
|
|
{
|
|
return changeMonitor.HasChanged(item, directoryService, date);
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
Logger.ErrorException("Error in {0}.HasChanged", ex, changeMonitor.GetType().Name);
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
public class RefreshResult
|
|
{
|
|
public ItemUpdateType UpdateType { get; set; }
|
|
public ProviderRefreshStatus Status { get; set; }
|
|
public string ErrorMessage { get; set; }
|
|
public List<Guid> Providers { get; set; }
|
|
public int Successes { get; set; }
|
|
public int Failures { get; set; }
|
|
}
|
|
}
|