public override string GetPreferredLabel(string classNotation)
{
try
{
string[] res;
DdcReasoner.rs.Apply(this.LDGraph());
res = this.LDGraph().ObjectOf(DdcClassificationSystemClient.GetURI(classNotation), DdcClassificationSystemClient.GetPredicate(ClassificationPredicates.preferred_label));
return(res[0]);
}
catch
{
return("");
}
}
static public string GetURI(ClassificationSystems classSystem, string classNotation)
{
switch (classSystem)
{
case ClassificationSystems.rvk:
return(RvkClassificationSystemClient.GetURI(classNotation));
case ClassificationSystems.jel:
return(JelClassificationSystemClient.GetURI(classNotation));
case ClassificationSystems.rq:
return(RqClassificationSystemClient.GetURI(classNotation));
case ClassificationSystems.ddc:
return(DdcClassificationSystemClient.GetURI(classNotation));
default:
return("");
}
}