/// <summary>
/// Converts the specified Compilation to the specified target type
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="Compilation">The Compilation.</param>
/// <returns></returns>
public static ICompilation Convert(ICompilation source, CompilationType targetType)
{
ICompilation converted;
switch (targetType)
{
case CompilationType.Zip:
converted = new ZipCompilation();
break;
case CompilationType.Xml:
converted = new XmlCompilation();
break;
case CompilationType.Quirli:
converted = new QuirliCompilation();
break;
default:
throw new NotSupportedException();
}
converted.Url = source.Url;
converted.MediaPath = source.MediaPath;
converted.Title = source.Title;
converted.Tracks = source.Tracks;
return(converted);
}
/// <summary>
/// Retrieves the Compilation at the specified url.
/// </summary>
public static ICompilation Retrieve(string url)
{
//load initial data
if (Path.GetExtension(url).Equals(XmlCompilation.DefaultExtension)) //is xml Compilation?
{
return(XmlCompilation.Retrieve(url));
}
else if (Path.GetExtension(url).Equals(ZipCompilation.DefaultExtension)) //is zipped Compilation?
{
return(ZipCompilation.Retrieve(url));
}
else
{
//try deprecated format
try
{
Compilation.ICompilation deprecatedCompilation = Compilation.CompilationFactory.Retrieve(url);
//convert to xml compilation with local files
ICompilation convertedCompilation = new ZipCompilation();
convertedCompilation.MediaPath = deprecatedCompilation.MediaPath;
convertedCompilation.Title = deprecatedCompilation.Title;
//Do not convert the url, to force "saving as"
convertedCompilation.Tracks =
new ObservableCollection <Track>
(from track in deprecatedCompilation.Tracks
select new Track
{
Album = track.TrackInfo.Album,
Artist = track.TrackInfo.Artist,
//let have a new id automatically
Measure = track.TrackInfo.Measure,
Name = track.TrackInfo.Name,
Url = track.TrackInfo.LocalPath,
Cues = new ObservableCollection <Cue>
(from cue in track.CuePoints
select new Cue
{
Description = cue.Description,
//let have a new id automatically
Shortcut = cue.Shortcut,
Time = cue.Time
})
});
//TODO inform the user about the conversion
return(convertedCompilation);
}
catch (Exception ex)
//do not allow to propagate anything directly, but throw our own exception as a wrapper to have a defined exception type on the outside
{
throw new ArgumentException("The Compilation with path: " + url + " is not in a known format", ex);
}
}
}
