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jellyfin/MediaBrowser.XbmcMetadata/Providers/BaseNfoProvider.cs

79 lines
2.2 KiB

using System.IO;
using System.Threading;
using System.Threading.Tasks;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Providers;
using MediaBrowser.Model.IO;
using MediaBrowser.XbmcMetadata.Savers;
namespace MediaBrowser.XbmcMetadata.Providers
{
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public abstract class BaseNfoProvider<T> : ILocalMetadataProvider<T>, IHasItemChangeMonitor
where T : BaseItem, new()
{
private IFileSystem _fileSystem;
protected BaseNfoProvider(IFileSystem fileSystem)
{
_fileSystem = fileSystem;
}
/// <inheritdoc />
public Task<MetadataResult<T>> GetMetadata(
ItemInfo info,
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IDirectoryService directoryService,
CancellationToken cancellationToken)
{
var result = new MetadataResult<T>();
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var file = GetXmlFile(info, directoryService);
if (file == null)
{
return Task.FromResult(result);
}
var path = file.FullName;
try
{
result.Item = new T();
Fetch(result, path, cancellationToken);
result.HasMetadata = true;
}
catch (FileNotFoundException)
{
result.HasMetadata = false;
}
catch (IOException)
{
result.HasMetadata = false;
}
return Task.FromResult(result);
}
/// <inheritdoc />
protected abstract void Fetch(MetadataResult<T> result, string path, CancellationToken cancellationToken);
/// <inheritdoc />
protected abstract FileSystemMetadata GetXmlFile(ItemInfo info, IDirectoryService directoryService);
/// <inheritdoc />
public bool HasChanged(BaseItem item, IDirectoryService directoryService)
{
var file = GetXmlFile(new ItemInfo(item), directoryService);
if (file == null)
{
return false;
}
return file.Exists && _fileSystem.GetLastWriteTimeUtc(file) > item.DateLastSaved;
}
public string Name => BaseNfoSaver.SaverName;
}
}