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189 lines
6.2 KiB
C#
189 lines
6.2 KiB
C#
using MediaBrowser.Common.Progress;
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using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.Entities.Audio;
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using MediaBrowser.Controller.Library;
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using MediaBrowser.Model.Dto;
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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.IO;
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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.Server.Implementations.Library.Validators
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{
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/// <summary>
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/// Class ArtistsValidator
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/// </summary>
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public class ArtistsValidator
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{
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/// <summary>
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/// The _library manager
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/// </summary>
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private readonly ILibraryManager _libraryManager;
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/// <summary>
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/// The _user manager
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/// </summary>
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private readonly IUserManager _userManager;
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/// <summary>
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/// The _logger
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/// </summary>
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private readonly ILogger _logger;
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/// <summary>
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/// Initializes a new instance of the <see cref="ArtistsPostScanTask" /> class.
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/// </summary>
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/// <param name="libraryManager">The library manager.</param>
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/// <param name="userManager">The user manager.</param>
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/// <param name="logger">The logger.</param>
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public ArtistsValidator(ILibraryManager libraryManager, IUserManager userManager, ILogger logger)
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{
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_libraryManager = libraryManager;
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_userManager = userManager;
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_logger = logger;
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}
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/// <summary>
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/// Runs the specified progress.
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/// </summary>
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/// <param name="progress">The progress.</param>
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/// <param name="cancellationToken">The cancellation token.</param>
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/// <returns>Task.</returns>
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public async Task Run(IProgress<double> progress, CancellationToken cancellationToken)
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{
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var allItems = _libraryManager.RootFolder.GetRecursiveChildren();
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var allSongs = allItems.OfType<Audio>().ToList();
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var innerProgress = new ActionableProgress<double>();
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innerProgress.RegisterAction(pct => progress.Report(pct * .8));
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var allArtists = await GetAllArtists(allSongs, cancellationToken, innerProgress).ConfigureAwait(false);
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progress.Report(80);
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var numComplete = 0;
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var userLibraries = _userManager.Users
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.Select(i => new Tuple<Guid, List<IHasArtist>>(i.Id, i.RootFolder.GetRecursiveChildren(i).OfType<IHasArtist>().ToList()))
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.ToList();
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var numArtists = allArtists.Count;
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foreach (var artist in allArtists)
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{
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cancellationToken.ThrowIfCancellationRequested();
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// Only do this for artists accessed by name. Folder-based artists use ArtistInfoFromSongsProvider
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if (artist.IsAccessedByName && !artist.LockedFields.Contains(MetadataFields.Genres))
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{
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// Avoid implicitly captured closure
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var artist1 = artist;
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artist.Genres = allSongs.Where(i => i.HasArtist(artist1.Name))
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.SelectMany(i => i.Genres)
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.Distinct(StringComparer.OrdinalIgnoreCase)
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.ToList();
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}
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// Populate counts of items
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//SetItemCounts(artist, null, allItems.OfType<IHasArtist>());
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foreach (var lib in userLibraries)
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{
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SetItemCounts(artist, lib.Item1, lib.Item2);
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}
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numComplete++;
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double percent = numComplete;
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percent /= numArtists;
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percent *= 20;
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progress.Report(80 + percent);
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}
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progress.Report(100);
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}
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/// <summary>
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/// Sets the item counts.
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/// </summary>
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/// <param name="artist">The artist.</param>
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/// <param name="userId">The user id.</param>
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/// <param name="allItems">All items.</param>
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private void SetItemCounts(MusicArtist artist, Guid? userId, IEnumerable<IHasArtist> allItems)
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{
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var name = artist.Name;
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var items = allItems
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.Where(i => i.HasArtist(name))
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.ToList();
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var counts = new ItemByNameCounts
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{
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TotalCount = items.Count,
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SongCount = items.OfType<Audio>().Count(),
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AlbumCount = items.OfType<MusicAlbum>().Count(),
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MusicVideoCount = items.OfType<MusicVideo>().Count()
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};
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if (userId.HasValue)
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{
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artist.SetItemByNameCounts(userId.Value, counts);
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}
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}
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/// <summary>
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/// Gets all artists.
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/// </summary>
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/// <param name="allSongs">All songs.</param>
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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{Artist[]}.</returns>
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private async Task<List<MusicArtist>> GetAllArtists(IEnumerable<Audio> allSongs, CancellationToken cancellationToken, IProgress<double> progress)
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{
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var allArtists = _libraryManager.GetAllArtists(allSongs)
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.ToList();
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var returnArtists = new List<MusicArtist>(allArtists.Count);
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var numComplete = 0;
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var numArtists = allArtists.Count;
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foreach (var artist in allArtists)
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{
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cancellationToken.ThrowIfCancellationRequested();
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try
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{
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var artistItem = _libraryManager.GetArtist(artist);
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await artistItem.RefreshMetadata(cancellationToken).ConfigureAwait(false);
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returnArtists.Add(artistItem);
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}
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catch (IOException ex)
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{
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_logger.ErrorException("Error validating Artist {0}", ex, artist);
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}
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// Update progress
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numComplete++;
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double percent = numComplete;
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percent /= numArtists;
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progress.Report(100 * percent);
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}
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return returnArtists;
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}
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}
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}
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