private Set<NonLiteral> getSiblings(NonLiteral resource, TripleCollection base) {
Set<Resource> parents = new HashSet<Resource>();
{
Iterator<Triple> parentTriples = base.filter(resource, parentProperty, null);
while (parentTriples.hasNext()) {
parents.add(parentTriples.next().getObject());
}
}
Set<NonLiteral> resultSet = new HashSet<NonLiteral>();
for (Resource parent : parents) {
Iterator<Triple> childTriples = base.filter(null, parentProperty, parent);
while (childTriples.hasNext()) {
resultSet.add(childTriples.next().getSubject());
}
}
return resultSet;
}
private TripleCollection getMergedTc() {
TripleCollection result = new SimpleMGraph(); // Takes less memory than the Indexed one
for (OWLOntologyID key : listManagedOntologies()) {
// TODO when implemented, switch to true.
TripleCollection managed = getOntology(key, TripleCollection.class, false);
Set<Resource> exclusions = new HashSet<Resource>();
Iterator<Triple> it = managed.filter(null, RDF.type, OWL.Ontology);
while (it.hasNext()) exclusions.add(it.next().getSubject());
for (Triple t : managed) if (!exclusions.contains(t.getSubject())) result.add(t);
}
// TODO Purge property usage
return result;
}
