jellyfin/MediaBrowser.Controller/Providers/Movies/MovieProviderFromJson.cs

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C#
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2013-02-21 01:33:05 +00:00
using MediaBrowser.Common.Serialization;
using MediaBrowser.Controller.Entities;
using System;
using System.ComponentModel.Composition;
using System.IO;
using System.Threading;
using System.Threading.Tasks;
namespace MediaBrowser.Controller.Providers.Movies
{
/// <summary>
/// Class MovieProviderFromJson
/// </summary>
[Export(typeof(BaseMetadataProvider))]
public class MovieProviderFromJson : MovieDbProvider
{
/// <summary>
/// Gets the priority.
/// </summary>
/// <value>The priority.</value>
public override MetadataProviderPriority Priority
{
get { return MetadataProviderPriority.First; }
}
/// <summary>
/// Gets a value indicating whether [requires internet].
/// </summary>
/// <value><c>true</c> if [requires internet]; otherwise, <c>false</c>.</value>
public override bool RequiresInternet
{
get { return false; }
}
/// <summary>
/// Override this to return the date that should be compared to the last refresh date
/// to determine if this provider should be re-fetched.
/// </summary>
/// <param name="item">The item.</param>
/// <returns>DateTime.</returns>
protected override DateTime CompareDate(BaseItem item)
{
var entry = item.ResolveArgs.GetMetaFileByPath(Path.Combine(item.MetaLocation, LOCAL_META_FILE_NAME));
return entry != null ? entry.Value.LastWriteTimeUtc : DateTime.MinValue;
}
/// <summary>
/// Needses the refresh internal.
/// </summary>
/// <param name="item">The item.</param>
/// <param name="providerInfo">The provider info.</param>
/// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
protected override bool NeedsRefreshInternal(BaseItem item, BaseProviderInfo providerInfo)
{
if (item.ResolveArgs.ContainsMetaFileByName(ALT_META_FILE_NAME))
{
return false; // don't read our file if 3rd party data exists
}
if (!item.ResolveArgs.ContainsMetaFileByName(LOCAL_META_FILE_NAME))
{
return false; // nothing to read
}
// Need to re-override to jump over intermediate implementation
return CompareDate(item) > providerInfo.LastRefreshed;
}
/// <summary>
/// Fetches the async.
/// </summary>
/// <param name="item">The item.</param>
/// <param name="force">if set to <c>true</c> [force].</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task{System.Boolean}.</returns>
protected override Task<bool> FetchAsyncInternal(BaseItem item, bool force, CancellationToken cancellationToken)
{
// Since we don't have anything truly async, and since deserializing can be expensive, create a task to force parallelism
return Task.Run(() =>
{
cancellationToken.ThrowIfCancellationRequested();
var entry = item.ResolveArgs.GetMetaFileByPath(Path.Combine(item.MetaLocation, LOCAL_META_FILE_NAME));
if (entry.HasValue)
{
// read in our saved meta and pass to processing function
var movieData = JsonSerializer.DeserializeFromFile<CompleteMovieData>(entry.Value.Path);
cancellationToken.ThrowIfCancellationRequested();
ProcessMainInfo(item, movieData);
SetLastRefreshed(item, DateTime.UtcNow);
return true;
}
return false;
});
}
}
}