public IComparer <AudioEntity> this[AudioComparisonType comparisonType]
{
get
{
IComparer <AudioEntity> audioComparer;
if (_audioComparers.TryGetValue(comparisonType, out audioComparer))
{
return(audioComparer);
}
_audioComparers[comparisonType] = GetTypeComparer(comparisonType);
return(_audioComparers[comparisonType]);
}
}
public static IComparer <AudioEntity> GetTypeComparer(AudioComparisonType comparisonType)
{
switch (comparisonType)
{
case AudioComparisonType.TrackName:
return(new TrackNameAudioComparer());
case AudioComparisonType.Duration:
return(new DurationAudioComparer());
case AudioComparisonType.Bitrate:
return(new BitrateAudioComparer());
case AudioComparisonType.TrackUrl:
return(new TrackUrlAudioComparer());
case AudioComparisonType.Group:
return(new GroupAudioComparer());
case AudioComparisonType.Year:
return(new YearAudioComparer());
case AudioComparisonType.RecordFormat:
return(new RecordFormatAudioComparer());
case AudioComparisonType.Album:
return(new SizeAudioComparer());
case AudioComparisonType.Size:
return(new GenreAudioComparer());
case AudioComparisonType.Genre:
return(new GenreAudioComparer());
default:
throw new InvalidOperationException("Unknown comparison type");
}
}
