2016-03-27 23:11:27 +02:00
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using MediaBrowser.Controller.Entities;
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2014-06-30 05:04:50 +02:00
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using MediaBrowser.Controller.Providers;
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2014-07-08 03:41:03 +02:00
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using System;
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using System.IO;
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using System.Threading;
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using System.Threading.Tasks;
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2015-10-04 06:23:11 +02:00
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using CommonIO;
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2014-01-28 19:37:01 +01:00
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2014-06-30 05:04:50 +02:00
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namespace MediaBrowser.LocalMetadata
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2014-01-28 19:37:01 +01:00
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{
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2016-04-28 03:59:09 +02:00
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public abstract class BaseXmlProvider<T> : ILocalMetadataProvider<T>, IHasItemChangeMonitor, IHasOrder
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2014-02-06 05:39:16 +01:00
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where T : IHasMetadata, new()
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2014-01-28 19:37:01 +01:00
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{
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protected IFileSystem FileSystem;
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2015-08-02 19:31:08 +02:00
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public async Task<MetadataResult<T>> GetMetadata(ItemInfo info,
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2014-10-25 20:32:58 +02:00
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IDirectoryService directoryService,
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CancellationToken cancellationToken)
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2014-02-06 05:39:16 +01:00
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{
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2015-08-02 19:31:08 +02:00
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var result = new MetadataResult<T>();
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2014-02-06 05:39:16 +01:00
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2014-10-25 20:32:58 +02:00
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var file = GetXmlFile(info, directoryService);
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2014-02-06 05:39:16 +01:00
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if (file == null)
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{
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return result;
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}
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var path = file.FullName;
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try
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{
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result.Item = new T();
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2014-02-09 05:52:52 +01:00
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Fetch(result, path, cancellationToken);
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2014-02-06 05:39:16 +01:00
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result.HasMetadata = true;
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}
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catch (FileNotFoundException)
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{
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result.HasMetadata = false;
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}
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2014-02-10 19:39:41 +01:00
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catch (DirectoryNotFoundException)
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{
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result.HasMetadata = false;
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}
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2014-02-06 05:39:16 +01:00
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return result;
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}
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2015-08-02 19:31:08 +02:00
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protected abstract void Fetch(MetadataResult<T> result, string path, CancellationToken cancellationToken);
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2014-02-06 05:39:16 +01:00
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2014-01-28 19:37:01 +01:00
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protected BaseXmlProvider(IFileSystem fileSystem)
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{
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FileSystem = fileSystem;
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}
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2015-10-04 05:38:46 +02:00
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protected abstract FileSystemMetadata GetXmlFile(ItemInfo info, IDirectoryService directoryService);
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2014-02-10 21:11:46 +01:00
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2016-04-28 03:59:09 +02:00
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public bool HasChanged(IHasMetadata item, IDirectoryService directoryService)
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2014-01-28 19:37:01 +01:00
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{
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2015-05-15 17:46:20 +02:00
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var file = GetXmlFile(new ItemInfo(item), directoryService);
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2014-02-06 05:39:16 +01:00
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if (file == null)
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{
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return false;
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}
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2014-01-28 19:37:01 +01:00
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2016-04-28 03:59:09 +02:00
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return file.Exists && FileSystem.GetLastWriteTimeUtc(file) > item.DateLastSaved;
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2014-01-28 19:37:01 +01:00
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}
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2014-01-29 17:16:24 +01:00
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2014-02-06 05:39:16 +01:00
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public string Name
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2014-01-29 17:16:24 +01:00
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{
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2014-02-06 05:39:16 +01:00
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get
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{
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2014-11-11 04:41:55 +01:00
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return XmlProviderUtils.Name;
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2014-02-06 05:39:16 +01:00
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}
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2014-01-29 17:16:24 +01:00
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}
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2014-11-11 04:41:55 +01:00
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2015-01-10 06:53:35 +01:00
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public int Order
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{
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get
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{
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// After Nfo
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return 1;
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}
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}
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2014-01-28 19:37:01 +01:00
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}
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2014-02-06 05:39:16 +01:00
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static class XmlProviderUtils
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{
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2014-11-11 04:41:55 +01:00
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public static string Name
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{
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get
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{
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2015-04-01 06:23:34 +02:00
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return "Emby Xml";
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2014-11-11 04:41:55 +01:00
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}
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}
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2014-02-06 05:39:16 +01:00
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internal static readonly SemaphoreSlim XmlParsingResourcePool = new SemaphoreSlim(4, 4);
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}
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2014-01-28 19:37:01 +01:00
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}
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