| public EnsurePrefix ( TripleName name ) : TripleName | ||
| name | TripleName | Name of the triple |
| Результат | TripleName | |
public TripleName EnsurePrefix(TripleName name)
{
if(name.Prefix == null) {
var found = TripleName.PrefixesAndNamespaces.FirstOrDefault(p => p.Value == name.Namespace );
if (found.Key != null)
return new TripleName(name.Namespace, found.Key, name.Name);
var tr = TriplePrefixes.FirstOrDefault(t => t.Namespace == name.Namespace);
if(tr != null)
return new TripleName(name.Namespace, tr.Prefix, name.Name);
else
throw new ArgumentException(String.Format("There is no known prefix for namespace {0}", name.Namespace));
} else
return name;
}
private string GetSubjectOwner(Storage storage, string subject)
{
var name = storage.EnsurePrefix(TripleName.Parse(subject));
switch(name.Prefix) {
case TripleName.UserPrefix:
return name.Name;
case TripleName.TimelinePrefix:
var collection = RetrieveCollection(storage, storage.GetCollectionFromTimeline(Guid.Parse(name.Name)));
return collection != null && collection.User != null ? collection.User.Id.ToString() : null;
case TripleName.ExhibitPrefix:
collection = RetrieveCollection(storage, storage.GetCollectionFromExhibitGuid(Guid.Parse(name.Name)));
return collection != null && collection.User != null ? collection.User.Id.ToString() : null;
case TripleName.ArtifactPrefix:
collection = RetrieveCollection(storage, storage.GetCollectionFromContentItemGuid(Guid.Parse(name.Name)));
return collection != null && collection.User != null ? collection.User.Id.ToString() : null;
default:
return null;
}
}
