public static IUriNode GetUriNode(this OntologyResource ontResource)
{
if (!ontResource.IsNamed())
{
throw new RdfException($"Ontology resource {ontResource} does not have an IRI.");
}
return(ontResource.Resource.AsUriNode());
}
public static bool IsBuiltIn(this OntologyResource ontologyResource)
{
if (!ontologyResource.IsNamed())
{
return(false);
}
HashSet <string> builtIns = new HashSet <string>()
{
"http://www.w3.org/1999/02/22-rdf-syntax-ns#",
"http://www.w3.org/2000/01/rdf-schema#",
"http://www.w3.org/2002/07/owl#",
"http://www.w3.org/2001/XMLSchema#"
};
return(builtIns.Any(builtin => ontologyResource.GetUri().AbsoluteUri.Contains(builtin)));
}
