/**
* filters the result of e.g. getSubclasses which is Set<Set<OWLClass>> To Set<OWLClass>
*
* @param original
* @return
* @throws OWLReasonerException
*/
protected Set<OWLClass> filterClasses(Set<Set<OWLClass>> original) throws OWLReasonerException {
Set<OWLClass> result = new HashSet<OWLClass>();
for (Set<OWLClass> set : original) {
for (Iterator<OWLClass> it = set.iterator(); it.hasNext(); ) {
OWLClass cls = it.next();
if (cls.getURI().equals(OWLRDFVocabulary.OWL_NOTHING)) {
it.remove();
} else {
result.add(cls);
}
}
}
return result;
}
/**
* Gets OWL class by given name
*
* @param className
* @return
* @throws OWLReasonerException
*/
public OWLClass getNamedClass(String className) {
if (classnameCache == null) {
classnameCache = new HashMap<String, URI>();
for (OWLOntology ont : reasoner.getLoadedOntologies()) {
for (OWLClass cls : ont.getReferencedClasses()) {
classnameCache.put(cls.toString(), cls.getURI());
}
}
}
OWLClass namedCls = null;
URI uri = classnameCache.get(className);
if (uri != null) {
namedCls = manager.getOWLDataFactory().getOWLClass(uri);
} else {
System.err.println("Cannot find class: " + className + " in loaded ontologies");
}
return namedCls;
}