public string BuildExternalRef()
{
switch (this.AssetType)
{
case AssetType.MasterCoverArt:
case AssetType.MasterArtistArt:
case AssetType.MasterLabelArt:
{
return(String.Format("{0}/{1}", this.AssetType, this.MasterSha256Checksum).ToLower());
}
case AssetType.TrackProduct:
case AssetType.TrackPreview:
{
var externalOwnerRef = Urn.Parse(this.ExternalOwnerUrn).IdValue;
return(String.Format("{0}/{1}/{2}/{3}/{4}/{5}", this.AssetType, this.MasterSha256Checksum, externalOwnerRef, this.FileExtension.ToLower(), this.BitRateKbps ?? 0, this.DurationMs ?? 0).ToLower());
}
default:
{
var message = String.Format("AssetType not supported: {0}-{1}-{2}", AssetType, FileExtension.ToLower(), MasterSha256Checksum);
throw new Exception(message);
}
}
}
public static bool TryParse(string urnString, out Urn urn)
{
var fields = urnString.Split(':');
if ((fields.Length == 3 || fields.Length == 4) && String.CompareOrdinal(fields[0], "urn") == 0)
{
if (fields.Length == 4)
{
urn = new Urn(fields[1], fields[2], fields[3]);
}
else
{
urn = new Urn(fields[1], fields[2]);
}
return(true);
}
urn = new Urn();
return(false);
}
public bool Equals(Urn obj)
{
return(String.CompareOrdinal(obj.urnString, this.urnString) == 0);
}