private List<OntClass> listNamedClasses() {
List<OntClass> result = new ArrayList<OntClass>();
StmtIterator classes = model.listStatements(null, RDF.type, OWL.Class);
while (classes.hasNext()) {
Resource type = classes.next().getSubject();
String uri = type.getURI();
if (uri == null || manager.getDatatypeByUri(uri) != null) continue;
if (!isStandard(uri)) {
result.add(type.as(OntClass.class));
}
}
classes = model.listStatements(null, RDF.type, RDFS.Class);
while (classes.hasNext()) {
Resource type = classes.next().getSubject();
String uri = type.getURI();
if (uri == null || manager.getDatatypeByUri(uri) != null) continue;
if (!isStandard(uri)) {
result.add(type.as(OntClass.class));
}
}
List<Resource> rdfsClassList = model.listResourcesWithProperty(RDF.type, RDFS.Class).toList();
for (Resource r : rdfsClassList) {
if (r.canAs(OntClass.class)
&& r.getURI() != null
&& !isStandard(r.getURI())
&& manager.getDatatypeByUri(r.getURI()) == null) {
result.add(r.as(OntClass.class));
}
}
return result;
}
private List<OntResource> listUnionMembers(OntProperty p, OntResource domain) {
List<OntResource> list = new ArrayList<OntResource>();
Resource union = domain.getPropertyResourceValue(OWL.unionOf);
if (union != null && union.canAs(RDFList.class)) {
RDFList rdfList = union.as(RDFList.class);
Iterator<RDFNode> sequence = rdfList.iterator();
while (sequence.hasNext()) {
list.add(sequence.next().as(OntResource.class));
}
}
return list;
}
/* (non-Javadoc)
* @see org.sadiframework.client.Registry#findServicesByConnectedClass(com.hp.hpl.jena.rdf.model.Resource)
*/
@Override
public Collection<? extends Service> findServicesByConnectedClass(Resource clazz)
throws SADIException {
Set<String> classURIs = new HashSet<String>();
if (clazz.isURIResource()) classURIs.add(clazz.getURI());
if (clazz.canAs(OntClass.class)) {
for (Iterator<? extends OntClass> i = clazz.as(OntClass.class).listSubClasses();
i.hasNext(); ) {
OntClass c = i.next();
if (c.isURIResource()) classURIs.add(c.getURI());
}
}
return findServicesByConnectedClass(classURIs);
// TODO
// return findServices(RegistrySearchCriteria.findService().addConnectedClass(clazz));
}
private Field createListField(Frame frame, OntProperty p, OntResource range) {
Resource intersection = range.getPropertyResourceValue(OWL.intersectionOf);
if (intersection == null) return null;
if (intersection.canAs(RDFList.class)) {
List<RDFNode> intersectionList = intersection.as(RDFList.class).asJavaList();
for (RDFNode node : intersectionList) {
if (node.canAs(OntClass.class)) {
OntClass intersectionMember = node.as(OntClass.class);
if (RDF.first.equals(intersectionMember.getPropertyResourceValue(OWL.onProperty))) {
// The intersectionMember has an owl:onProperty property whose value is rdf:first
Resource elementRdfType =
intersectionMember.getPropertyResourceValue(OWL.allValuesFrom);
if (elementRdfType != null) {
String elementTypeURI = elementRdfType.getURI();
if (elementTypeURI != null) {
RdfType elementType = manager.getTypeByURI(elementTypeURI);
if (elementType != null) {
ListType listType = manager.getListTypeByElementUri(elementTypeURI);
if (listType == null) {
listType = new ListType(manager, intersectionMember, elementType);
manager.add(listType);
}
return new Field(frame, p, listType);
}
}
}
}
}
}
}
return null;
}
private void addField(OntResource type, OntProperty p, OntProperty ancestor) {
int minCardinality = 0;
int maxCardinality = -1;
OntResource range = null;
String typeURI = type.getURI();
if (typeURI == null) {
// We only add fields to named types.
return;
}
// Do not add abstract properties.
if (isAbstract(p)) return;
Frame frame = manager.getFrameByUri(typeURI);
if (frame == null) {
if (isStandard(typeURI)) return;
logger.warn(
"Ignoring property "
+ p.getLocalName()
+ " on class "
+ type.getLocalName()
+ ": frame not found");
return;
}
if (frame.getDeclaredFieldByPropertyURI(p.getURI()) != null) return;
if (p.hasRDFType(OWL.FunctionalProperty)) {
maxCardinality = 1;
}
OntClass restriction = frame.getRestriction(p.getURI());
range = p.getRange();
if (range == null && ancestor != null) {
range = ancestor.getRange();
}
if (range == null) {
// logger.warn("Ignoring property " + p.getLocalName() + " on class " +
// type.getLocalName() + ": range not defined");
// return;
range = THING;
}
if (restriction != null) {
Resource onClass = restriction.getPropertyResourceValue(OWL2.onClass);
if (onClass != null) {
range = onClass.as(OntResource.class);
if (restriction.hasProperty(OWL2.minQualifiedCardinality)) {
minCardinality = restriction.getProperty(OWL2.minQualifiedCardinality).getInt();
}
if (restriction.hasProperty(OWL2.maxQualifiedCardinality)) {
maxCardinality = restriction.getProperty(OWL2.maxQualifiedCardinality).getInt();
}
} else {
if (restriction.hasProperty(OWL.minCardinality)) {
minCardinality = restriction.getProperty(OWL.minCardinality).getInt();
}
if (restriction.hasProperty(OWL.maxCardinality)) {
maxCardinality = restriction.getProperty(OWL.maxCardinality).getInt();
}
}
}
Field field = null;
String rangeURI = range.getURI();
if (rangeURI == null) {
field = createListField(frame, p, range);
if (field == null) {
logger.warn(
"Ignoring property "
+ p.getLocalName()
+ " on class "
+ type.getLocalName()
+ ": range has no URI");
return;
}
} else {
field = new Field(frame, p, range, minCardinality, maxCardinality);
if (field.getRdfType() == null) {
logger.warn(
"Failed to create RdfType for field "
+ field.getLocalName()
+ " of type "
+ field.getType().getURI());
}
}
Resource rawInverse = p.getPropertyResourceValue(OWL.inverseOf);
if (rawInverse != null && rawInverse.canAs(OntProperty.class)) {
field.setInverseOf(rawInverse.as(OntProperty.class));
}
frame.getDeclaredFields().add(field);
}
/**
* Since multiple threads may access the model just because canAs returns true doesn't mean .as
* will work.
*
* @see com.hp.hpl.jena.rdf.model.RDFNode#canAs(java.lang.Class)
*/
public boolean canAs(Class view) {
synchronized (model) {
return wrapped.canAs(view);
}
}