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further reduce fanart music requests by using their updates api

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This commit is contained in:
Luke Pulverenti 2013-05-25 11:16:50 -04:00
parent 7162566f56
commit 5c5ec6e644
9 changed files with 478 additions and 112 deletions
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1
MediaBrowser.Controller/MediaBrowser.Controller.csproj
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@ -74,6 +74,7 @@
<Compile Include="Entities\Audio\MusicAlbumDisc.cs" />
<Compile Include="Library\ILibraryPrescanTask.cs" />
<Compile Include="Providers\Movies\MovieDbImagesProvider.cs" />
<Compile Include="Providers\Music\FanArtUpdatesPrescanTask.cs" />
<Compile Include="Providers\TV\FanArtSeasonProvider.cs" />
<Compile Include="Providers\TV\TvdbPrescanTask.cs" />
<Compile Include="Providers\TV\TvdbSeriesImageProvider.cs" />

7
MediaBrowser.Controller/Providers/FanartBaseProvider.cs
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@ -10,7 +10,7 @@ namespace MediaBrowser.Controller.Providers
/// </summary>
public abstract class FanartBaseProvider : BaseMetadataProvider
{
protected static readonly SemaphoreSlim FanArtResourcePool = new SemaphoreSlim(3,3);
internal static readonly SemaphoreSlim FanArtResourcePool = new SemaphoreSlim(3, 3);
/// <summary>
/// The LOG o_ FILE
@ -50,9 +50,10 @@ namespace MediaBrowser.Controller.Providers
/// <summary>
/// The API key
/// </summary>
protected const string ApiKey = "5c6b04c68e904cfed1e6cbc9a9e683d4";
internal const string ApiKey = "5c6b04c68e904cfed1e6cbc9a9e683d4";
protected FanartBaseProvider(ILogManager logManager, IServerConfigurationManager configurationManager) : base(logManager, configurationManager)
protected FanartBaseProvider(ILogManager logManager, IServerConfigurationManager configurationManager)
: base(logManager, configurationManager)
{
}

16
MediaBrowser.Controller/Providers/ImagesByNameProvider.cs
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@ -153,14 +153,20 @@ namespace MediaBrowser.Controller.Providers
{
var location = GetLocation(item);
var result = new FileInfo(Path.Combine(location, filenameWithoutExtension + ".png"));
var files = new DirectoryInfo(location).EnumerateFiles("*", SearchOption.TopDirectoryOnly).ToList();
if (!result.Exists)
result = new FileInfo(Path.Combine(location, filenameWithoutExtension + ".jpg"));
var file = files.FirstOrDefault(i => string.Equals(i.Name, filenameWithoutExtension + ".png", StringComparison.OrdinalIgnoreCase));
if (result.Exists)
if (file != null)
{
return result;
return file;
}
file = files.FirstOrDefault(i => string.Equals(i.Name, filenameWithoutExtension + ".jpg", StringComparison.OrdinalIgnoreCase));
if (file != null)
{
return file;
}
return null;

2
MediaBrowser.Controller/Providers/Movies/FanArtMovieProvider.cs
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@ -5,9 +5,7 @@ using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.Movies;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.Logging;
using MediaBrowser.Model.Net;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Threading;
using System.Threading.Tasks;

151
MediaBrowser.Controller/Providers/Music/FanArtArtistProvider.cs
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@ -1,5 +1,4 @@
using System.IO;
using MediaBrowser.Common.Configuration;
using MediaBrowser.Common.Configuration;
using MediaBrowser.Common.Extensions;
using MediaBrowser.Common.IO;
using MediaBrowser.Common.Net;
@ -11,6 +10,8 @@ using MediaBrowser.Model.Logging;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using System.Xml;
@ -28,8 +29,21 @@ namespace MediaBrowser.Controller.Providers.Music
/// <value>The HTTP client.</value>
protected IHttpClient HttpClient { get; private set; }
/// <summary>
/// The _provider manager
/// </summary>
private readonly IProviderManager _providerManager;
internal static FanArtArtistProvider Current;
/// <summary>
/// Initializes a new instance of the <see cref="FanArtArtistProvider"/> class.
/// </summary>
/// <param name="httpClient">The HTTP client.</param>
/// <param name="logManager">The log manager.</param>
/// <param name="configurationManager">The configuration manager.</param>
/// <param name="providerManager">The provider manager.</param>
/// <exception cref="System.ArgumentNullException">httpClient</exception>
public FanArtArtistProvider(IHttpClient httpClient, ILogManager logManager, IServerConfigurationManager configurationManager, IProviderManager providerManager)
: base(logManager, configurationManager)
{
@ -39,6 +53,8 @@ namespace MediaBrowser.Controller.Providers.Music
}
HttpClient = httpClient;
_providerManager = providerManager;
Current = this;
}
/// <summary>
@ -56,11 +72,19 @@ namespace MediaBrowser.Controller.Providers.Music
return item is MusicArtist;
}
/// <summary>
/// Gets a value indicating whether [save local meta].
/// </summary>
/// <value><c>true</c> if [save local meta]; otherwise, <c>false</c>.</value>
protected virtual bool SaveLocalMeta
{
get { return ConfigurationManager.Configuration.SaveLocalMeta; }
}
/// <summary>
/// Gets a value indicating whether [refresh on version change].
/// </summary>
/// <value><c>true</c> if [refresh on version change]; otherwise, <c>false</c>.</value>
protected override bool RefreshOnVersionChange
{
get
@ -69,11 +93,15 @@ namespace MediaBrowser.Controller.Providers.Music
}
}
/// <summary>
/// Gets the provider version.
/// </summary>
/// <value>The provider version.</value>
protected override string ProviderVersion
{
get
{
return "5";
return "7";
}
}
@ -94,14 +122,54 @@ namespace MediaBrowser.Controller.Providers.Music
!ConfigurationManager.Configuration.DownloadMusicArtistImages.Backdrops &&
!ConfigurationManager.Configuration.DownloadMusicArtistImages.Banner &&
!ConfigurationManager.Configuration.DownloadMusicArtistImages.Logo &&
!ConfigurationManager.Configuration.DownloadMusicArtistImages.Primary)
!ConfigurationManager.Configuration.DownloadMusicArtistImages.Primary &&
// The fanart album provider depends on xml downloaded here, so honor it's settings too
!ConfigurationManager.Configuration.DownloadMusicAlbumImages.Disc &&
!ConfigurationManager.Configuration.DownloadMusicAlbumImages.Primary)
{
return false;
}
if (GetComparisonData(item) != providerInfo.Data)
{
return true;
}
return base.NeedsRefreshInternal(item, providerInfo);
}
/// <summary>
/// Gets the comparison data.
/// </summary>
/// <param name="item">The item.</param>
/// <returns>Guid.</returns>
private Guid GetComparisonData(BaseItem item)
{
var musicBrainzId = item.GetProviderId(MetadataProviders.Musicbrainz);
if (!string.IsNullOrEmpty(musicBrainzId))
{
// Process images
var path = GetArtistDataPath(ConfigurationManager.ApplicationPaths, musicBrainzId);
var files = new DirectoryInfo(path)
.EnumerateFiles("*.xml", SearchOption.TopDirectoryOnly)
.Select(i => i.FullName + i.LastWriteTimeUtc.Ticks)
.ToArray();
if (files.Length > 0)
{
return string.Join(string.Empty, files).GetMD5();
}
}
return Guid.Empty;
}
/// <summary>
/// The us culture
/// </summary>
protected readonly CultureInfo UsCulture = new CultureInfo("en-US");
/// <summary>
@ -150,14 +218,56 @@ namespace MediaBrowser.Controller.Providers.Music
{
cancellationToken.ThrowIfCancellationRequested();
//var artist = item;
var musicBrainzId = item.GetProviderId(MetadataProviders.Musicbrainz);
var artistDataPath = GetArtistDataPath(ConfigurationManager.ApplicationPaths, musicBrainzId);
var xmlPath = Path.Combine(artistDataPath, "fanart.xml");
// Only download the xml if it doesn't already exist. The prescan task will take care of getting updates
if (!File.Exists(xmlPath))
{
await DownloadArtistXml(artistDataPath, musicBrainzId, cancellationToken).ConfigureAwait(false);
}
if (ConfigurationManager.Configuration.DownloadMusicArtistImages.Art ||
ConfigurationManager.Configuration.DownloadMusicArtistImages.Backdrops ||
ConfigurationManager.Configuration.DownloadMusicArtistImages.Banner ||
ConfigurationManager.Configuration.DownloadMusicArtistImages.Logo ||
ConfigurationManager.Configuration.DownloadMusicArtistImages.Primary)
{
if (File.Exists(xmlPath))
{
await FetchFromXml(item, xmlPath, cancellationToken).ConfigureAwait(false);
}
}
BaseProviderInfo data;
if (!item.ProviderData.TryGetValue(Id, out data))
{
data = new BaseProviderInfo();
item.ProviderData[Id] = data;
}
data.Data = GetComparisonData(item);
SetLastRefreshed(item, DateTime.UtcNow);
return true;
}
/// <summary>
/// Downloads the artist XML.
/// </summary>
/// <param name="artistPath">The artist path.</param>
/// <param name="musicBrainzId">The music brainz id.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task{System.Boolean}.</returns>
internal async Task DownloadArtistXml(string artistPath, string musicBrainzId, CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
var url = string.Format(FanArtBaseUrl, ApiKey, musicBrainzId);
var status = ProviderRefreshStatus.Success;
var xmlPath = Path.Combine(GetArtistDataPath(ConfigurationManager.ApplicationPaths, musicBrainzId), "fanart.xml");
var xmlPath = Path.Combine(artistPath, "fanart.xml");
using (var response = await HttpClient.Get(new HttpRequestOptions
{
@ -172,14 +282,22 @@ namespace MediaBrowser.Controller.Providers.Music
await response.CopyToAsync(xmlFileStream).ConfigureAwait(false);
}
}
}
/// <summary>
/// Fetches from XML.
/// </summary>
/// <param name="item">The item.</param>
/// <param name="xmlFilePath">The XML file path.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
private async Task FetchFromXml(BaseItem item, string xmlFilePath, CancellationToken cancellationToken)
{
var doc = new XmlDocument();
doc.Load(xmlPath);
doc.Load(xmlFilePath);
cancellationToken.ThrowIfCancellationRequested();
if (doc.HasChildNodes)
{
string path;
var hd = ConfigurationManager.Configuration.DownloadHDFanArt ? "hd" : "";
if (ConfigurationManager.Configuration.DownloadMusicArtistImages.Logo && !item.HasImage(ImageType.Logo))
@ -190,7 +308,6 @@ namespace MediaBrowser.Controller.Providers.Music
path = node != null ? node.Value : null;
if (!string.IsNullOrEmpty(path))
{
Logger.Debug("FanArtProvider getting ClearLogo for " + item.Name);
item.SetImage(ImageType.Logo, await _providerManager.DownloadAndSaveImage(item, path, LogoFile, SaveLocalMeta, FanArtResourcePool, cancellationToken).ConfigureAwait(false));
}
}
@ -208,7 +325,6 @@ namespace MediaBrowser.Controller.Providers.Music
path = node.Value;
if (!string.IsNullOrEmpty(path))
{
Logger.Debug("FanArtProvider getting Backdrop for " + item.Name);
item.BackdropImagePaths.Add(await _providerManager.DownloadAndSaveImage(item, path, ("Backdrop" + (numBackdrops > 0 ? numBackdrops.ToString(UsCulture) : "") + ".jpg"), SaveLocalMeta, FanArtResourcePool, cancellationToken).ConfigureAwait(false));
numBackdrops++;
if (numBackdrops >= ConfigurationManager.Configuration.MaxBackdrops) break;
@ -229,7 +345,6 @@ namespace MediaBrowser.Controller.Providers.Music
path = node != null ? node.Value : null;
if (!string.IsNullOrEmpty(path))
{
Logger.Debug("FanArtProvider getting ClearArt for " + item.Name);
item.SetImage(ImageType.Art, await _providerManager.DownloadAndSaveImage(item, path, ArtFile, SaveLocalMeta, FanArtResourcePool, cancellationToken).ConfigureAwait(false));
}
}
@ -242,7 +357,6 @@ namespace MediaBrowser.Controller.Providers.Music
path = node != null ? node.Value : null;
if (!string.IsNullOrEmpty(path))
{
Logger.Debug("FanArtProvider getting Banner for " + item.Name);
item.SetImage(ImageType.Banner, await _providerManager.DownloadAndSaveImage(item, path, BannerFile, SaveLocalMeta, FanArtResourcePool, cancellationToken).ConfigureAwait(false));
}
}
@ -256,14 +370,9 @@ namespace MediaBrowser.Controller.Providers.Music
path = node != null ? node.Value : null;
if (!string.IsNullOrEmpty(path))
{
Logger.Debug("FanArtProvider getting Primary image for " + item.Name);
item.SetImage(ImageType.Primary, await _providerManager.DownloadAndSaveImage(item, path, PrimaryFile, SaveLocalMeta, FanArtResourcePool, cancellationToken).ConfigureAwait(false));
}
}
}
SetLastRefreshed(item, DateTime.UtcNow, status);
return true;
}
}
}

199
MediaBrowser.Controller/Providers/Music/FanArtUpdatesPrescanTask.cs Normal file
View File

@ -0,0 +1,199 @@
using MediaBrowser.Common.Net;
using MediaBrowser.Controller.Configuration;
using MediaBrowser.Controller.Library;
using MediaBrowser.Model.Logging;
using MediaBrowser.Model.Net;
using MediaBrowser.Model.Serialization;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace MediaBrowser.Controller.Providers.Music
{
class FanArtUpdatesPrescanTask : ILibraryPrescanTask
{
private const string UpdatesUrl = "http://api.fanart.tv/webservice/newmusic/{0}/{1}/";
/// <summary>
/// The _HTTP client
/// </summary>
private readonly IHttpClient _httpClient;
/// <summary>
/// The _logger
/// </summary>
private readonly ILogger _logger;
/// <summary>
/// The _config
/// </summary>
private readonly IServerConfigurationManager _config;
private readonly IJsonSerializer _jsonSerializer;
private static readonly CultureInfo UsCulture = new CultureInfo("en-US");
public FanArtUpdatesPrescanTask(IJsonSerializer jsonSerializer, IServerConfigurationManager config, ILogger logger, IHttpClient httpClient)
{
_jsonSerializer = jsonSerializer;
_config = config;
_logger = logger;
_httpClient = httpClient;
}
/// <summary>
/// Runs the specified progress.
/// </summary>
/// <param name="progress">The progress.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
public async Task Run(IProgress<double> progress, CancellationToken cancellationToken)
{
var path = FanArtArtistProvider.GetArtistDataPath(_config.CommonApplicationPaths);
var timestampFile = Path.Combine(path, "time.txt");
var timestampFileInfo = new FileInfo(timestampFile);
if (_config.Configuration.MetadataRefreshDays > 0 && timestampFileInfo.Exists && (DateTime.UtcNow - timestampFileInfo.LastWriteTimeUtc).TotalDays < _config.Configuration.MetadataRefreshDays)
{
return;
}
// Find out the last time we queried tvdb for updates
var lastUpdateTime = timestampFileInfo.Exists ? File.ReadAllText(timestampFile, Encoding.UTF8) : string.Empty;
var existingDirectories = Directory.EnumerateDirectories(path).Select(Path.GetFileName).ToList();
// If this is our first time, don't do any updates and just record the timestamp
if (!string.IsNullOrEmpty(lastUpdateTime))
{
var artistsToUpdate = await GetArtistIdsToUpdate(existingDirectories, lastUpdateTime, cancellationToken).ConfigureAwait(false);
progress.Report(5);
await UpdateArtists(artistsToUpdate, path, progress, cancellationToken).ConfigureAwait(false);
}
var newUpdateTime = Convert.ToInt64(DateTimeToUnixTimestamp(DateTime.UtcNow)).ToString(UsCulture);
File.WriteAllText(timestampFile, newUpdateTime, Encoding.UTF8);
progress.Report(100);
}
/// <summary>
/// Gets the artist ids to update.
/// </summary>
/// <param name="existingSeriesIds">The existing series ids.</param>
/// <param name="lastUpdateTime">The last update time.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task{IEnumerable{System.String}}.</returns>
private async Task<IEnumerable<string>> GetArtistIdsToUpdate(IEnumerable<string> existingSeriesIds, string lastUpdateTime, CancellationToken cancellationToken)
{
// First get last time
using (var stream = await _httpClient.Get(new HttpRequestOptions
{
Url = string.Format(UpdatesUrl, FanartBaseProvider.ApiKey, lastUpdateTime),
CancellationToken = cancellationToken,
EnableHttpCompression = true,
ResourcePool = FanartBaseProvider.FanArtResourcePool
}).ConfigureAwait(false))
{
// If empty fanart will return a string of "null", rather than an empty list
using (var reader = new StreamReader(stream))
{
var json = await reader.ReadToEndAsync().ConfigureAwait(false);
if (string.Equals(json, "null", StringComparison.OrdinalIgnoreCase))
{
return new List<string>();
}
var updates = _jsonSerializer.DeserializeFromString<List<FanArtUpdate>>(json);
return updates.Select(i => i.id).Where(i => existingSeriesIds.Contains(i, StringComparer.OrdinalIgnoreCase));
}
}
}
/// <summary>
/// Updates the artists.
/// </summary>
/// <param name="idList">The id list.</param>
/// <param name="artistsDataPath">The artists data path.</param>
/// <param name="progress">The progress.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
private async Task UpdateArtists(IEnumerable<string> idList, string artistsDataPath, IProgress<double> progress, CancellationToken cancellationToken)
{
var list = idList.ToList();
var numComplete = 0;
foreach (var id in list)
{
try
{
await UpdateArtist(id, artistsDataPath, cancellationToken).ConfigureAwait(false);
}
catch (HttpException ex)
{
// Already logged at lower levels, but don't fail the whole operation, unless something other than a timeout
if (!ex.IsTimedOut)
{
throw;
}
}
numComplete++;
double percent = numComplete;
percent /= list.Count;
percent *= 95;
progress.Report(percent + 5);
}
}
/// <summary>
/// Updates the artist.
/// </summary>
/// <param name="musicBrainzId">The musicBrainzId.</param>
/// <param name="artistsDataPath">The artists data path.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
private Task UpdateArtist(string musicBrainzId, string artistsDataPath, CancellationToken cancellationToken)
{
_logger.Info("Updating artist " + musicBrainzId);
artistsDataPath = Path.Combine(artistsDataPath, musicBrainzId);
if (!Directory.Exists(artistsDataPath))
{
Directory.CreateDirectory(artistsDataPath);
}
return FanArtArtistProvider.Current.DownloadArtistXml(artistsDataPath, musicBrainzId, cancellationToken);
}
/// <summary>
/// Dates the time to unix timestamp.
/// </summary>
/// <param name="dateTime">The date time.</param>
/// <returns>System.Double.</returns>
private static double DateTimeToUnixTimestamp(DateTime dateTime)
{
return (dateTime - new DateTime(1970, 1, 1).ToUniversalTime()).TotalSeconds;
}
public class FanArtUpdate
{
public string id { get; set; }
public string name { get; set; }
public string new_images { get; set; }
public string total_images { get; set; }
}
}
}

4
MediaBrowser.Controller/Providers/TV/RemoteSeriesProvider.cs
View File

@ -185,8 +185,7 @@ namespace MediaBrowser.Controller.Providers.TV
/// <returns>Guid.</returns>
private Guid GetComparisonData(BaseItem item)
{
var series = (Series)item;
var seriesId = series.GetProviderId(MetadataProviders.Tvdb);
var seriesId = item.GetProviderId(MetadataProviders.Tvdb);
if (!string.IsNullOrEmpty(seriesId))
{
@ -206,6 +205,7 @@ namespace MediaBrowser.Controller.Providers.TV
return Guid.Empty;
}
/// <summary>
/// Fetches metadata and returns true or false indicating if any work that requires persistence was done
/// </summary>

22
MediaBrowser.Controller/Providers/TV/TvdbPrescanTask.cs
View File

@ -103,7 +103,7 @@ namespace MediaBrowser.Controller.Providers.TV
newUpdateTime = doc.SafeGetString("//Time");
}
await UpdateSeries(existingDirectories, path, cancellationToken).ConfigureAwait(false);
await UpdateSeries(existingDirectories, path, progress, cancellationToken).ConfigureAwait(false);
}
else
{
@ -111,10 +111,11 @@ namespace MediaBrowser.Controller.Providers.TV
newUpdateTime = seriesToUpdate.Item2;
await UpdateSeries(seriesToUpdate.Item1, path, cancellationToken).ConfigureAwait(false);
await UpdateSeries(seriesToUpdate.Item1, path, progress, cancellationToken).ConfigureAwait(false);
}
File.WriteAllText(timestampFile, newUpdateTime, Encoding.UTF8);
progress.Report(100);
}
/// <summary>
@ -158,11 +159,15 @@ namespace MediaBrowser.Controller.Providers.TV
/// </summary>
/// <param name="seriesIds">The series ids.</param>
/// <param name="seriesDataPath">The series data path.</param>
/// <param name="progress">The progress.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
private async Task UpdateSeries(IEnumerable<string> seriesIds, string seriesDataPath, CancellationToken cancellationToken)
private async Task UpdateSeries(IEnumerable<string> seriesIds, string seriesDataPath, IProgress<double> progress, CancellationToken cancellationToken)
{
foreach (var seriesId in seriesIds)
var list = seriesIds.ToList();
var numComplete = 0;
foreach (var seriesId in list)
{
try
{
@ -171,12 +176,19 @@ namespace MediaBrowser.Controller.Providers.TV
catch (HttpException ex)
{
// Already logged at lower levels, but don't fail the whole operation, unless timed out
// We have to fail this to make it run again otherwise new episode data could potentially be missing
if (ex.IsTimedOut)
{
throw;
}
}
numComplete++;
double percent = numComplete;
percent /= list.Count;
percent *= 100;
progress.Report(percent);
}
}

64
MediaBrowser.Server.Implementations/Library/LibraryManager.cs
View File

@ -895,30 +895,28 @@ namespace MediaBrowser.Server.Implementations.Library
await RootFolder.RefreshMetadata(cancellationToken).ConfigureAwait(false);
progress.Report(.5);
// Start by just validating the children of the root, but go no further
await RootFolder.ValidateChildren(new Progress<double>(), cancellationToken, recursive: false);
progress.Report(1);
foreach (var folder in _userManager.Users.Select(u => u.RootFolder).Distinct())
{
await ValidateCollectionFolders(folder, cancellationToken).ConfigureAwait(false);
}
progress.Report(2);
// Run prescan tasks
foreach (var task in PrescanTasks)
{
try
{
await task.Run(new Progress<double>(), cancellationToken);
}
catch (Exception ex)
{
_logger.ErrorException("Error running prescan task", ex);
}
}
await RunPrescanTasks(progress, cancellationToken).ConfigureAwait(false);
progress.Report(15);
var innerProgress = new ActionableProgress<double>();
innerProgress.RegisterAction(pct => progress.Report(pct * .8));
innerProgress.RegisterAction(pct => progress.Report(15 + pct * .65));
// Now validate the entire media library
await RootFolder.ValidateChildren(innerProgress, cancellationToken, recursive: true).ConfigureAwait(false);
@ -932,6 +930,48 @@ namespace MediaBrowser.Server.Implementations.Library
progress.Report(100);
}
/// <summary>
/// Runs the prescan tasks.
/// </summary>
/// <param name="progress">The progress.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
private async Task RunPrescanTasks(IProgress<double> progress, CancellationToken cancellationToken)
{
var prescanTasks = PrescanTasks.ToList();
var progressDictionary = new Dictionary<ILibraryPrescanTask, double>();
var tasks = prescanTasks.Select(i => Task.Run(async () =>
{
var innerProgress = new ActionableProgress<double>();
innerProgress.RegisterAction(pct =>
{
lock (progressDictionary)
{
progressDictionary[i] = pct;
double percent = progressDictionary.Values.Sum();
percent /= prescanTasks.Count;
progress.Report(2 + percent * .13);
}
});
try
{
await i.Run(innerProgress, cancellationToken);
}
catch (Exception ex)
{
_logger.ErrorException("Error running prescan task", ex);
}
}));
// Run prescan tasks
await Task.WhenAll(tasks).ConfigureAwait(false);
}
/// <summary>
/// Validates only the collection folders for a User and goes no further
/// </summary>