private String getURIStr(Resource res) {
String URIStr;
if (res == null) {
URIStr =
OWL.Thing
.getURI(); // TODO: rdf:Resource if using RDF model; or option to turn off entirely
} else {
if (res.isAnon()) {
URIStr = PSEUDO_BNODE_NS + res.getId().toString();
} else {
URIStr = res.getURI();
}
}
return URIStr;
}
/**
* Takes a DBPedia class and returns the correct label for it
*
* @param className Name of a class
* @return Label
*/
public NPPhraseSpec getNPPhrase(String className, boolean plural) {
NPPhraseSpec object = null;
if (className.equals(OWL.Thing.getURI())) {
object = nlgFactory.createNounPhrase(GenericType.ENTITY.getNlr());
} else if (className.equals(RDFS.Literal.getURI())) {
object = nlgFactory.createNounPhrase(GenericType.VALUE.getNlr());
} else if (className.equals(RDF.Property.getURI())) {
object = nlgFactory.createNounPhrase(GenericType.RELATION.getNlr());
} else if (className.equals(RDF.type.getURI())) {
object = nlgFactory.createNounPhrase(GenericType.TYPE.getNlr());
} else {
String label = uriConverter.convert(className);
if (label != null) {
object = nlgFactory.createNounPhrase(label);
} else {
object = nlgFactory.createNounPhrase(GenericType.ENTITY.getNlr());
}
}
object.setPlural(plural);
return object;
}
public Collection<PropertyInstance> getAllPropInstByVClasses(List<VClass> vclasses) {
List<PropertyInstance> propInsts = new ArrayList<PropertyInstance>();
if (vclasses == null || vclasses.isEmpty()) {
return propInsts;
}
Collections.sort(
vclasses, new VClassHierarchyRanker(this.getWebappDaoFactory().getVClassDao()));
OntModel ontModel = getOntModelSelector().getTBoxModel();
try {
ontModel.enterCriticalSection(Lock.READ);
// map object property URI to an array of two resources:
// the first is the "allValuesFrom" resource and the second is
// "someValuesFrom"
Map<String, Resource[]> applicableProperties = new HashMap<String, Resource[]>();
try {
for (VClass vclass : vclasses) {
if (vclass.isAnonymous()) {
continue;
}
String VClassURI = vclass.getURI();
OntClass ontClass = getOntClass(ontModel, VClassURI);
if (ontClass != null) {
List<OntClass> relatedClasses = new ArrayList<OntClass>();
relatedClasses.addAll(ontClass.listEquivalentClasses().toList());
relatedClasses.addAll(ontClass.listSuperClasses().toList());
for (OntClass relatedClass : relatedClasses) {
// find properties in restrictions
if (relatedClass.isRestriction()) {
// TODO: check if restriction is something like
// maxCardinality 0 or allValuesFrom owl:Nothing,
// in which case the property is NOT applicable!
Restriction rest = (Restriction) relatedClass.as(Restriction.class);
OntProperty onProperty = rest.getOnProperty();
if (onProperty != null && onProperty.canAs(ObjectProperty.class)) {
Resource[] ranges = new Resource[2];
if (rest.isAllValuesFromRestriction()) {
ranges[0] = (rest.asAllValuesFromRestriction()).getAllValuesFrom();
} else if (rest.isSomeValuesFromRestriction()) {
ranges[1] = (rest.asSomeValuesFromRestriction()).getSomeValuesFrom();
}
updatePropertyRangeMap(applicableProperties, onProperty.getURI(), ranges);
}
}
}
// find properties with class in domain
ResIterator pit = ontModel.listSubjectsWithProperty(RDFS.domain, ontClass);
while (pit.hasNext()) {
Resource prop = pit.nextResource();
if (prop.getNameSpace() != null
&& !NONUSER_NAMESPACES.contains(prop.getNameSpace())) {
StmtIterator rangeSit = prop.listProperties(RDFS.range);
Resource rangeRes = null;
while (rangeSit.hasNext()) {
Statement s = rangeSit.nextStatement();
if (s.getObject().isURIResource()) {
rangeRes = (Resource) s.getObject();
}
}
Resource[] ranges = new Resource[2];
ranges[0] = rangeRes;
updatePropertyRangeMap(applicableProperties, prop.getURI(), ranges);
}
}
}
}
} catch (Exception e) {
log.error(
"Unable to get applicable properties "
+ "by examining property restrictions and domains",
e);
}
// make the PropertyInstance objects
for (String propertyURI : applicableProperties.keySet()) {
ObjectProperty op = ontModel.getObjectProperty(propertyURI);
if (op == null) {
continue;
}
String domainURIStr = getURIStr(op.getDomain());
Resource[] foundRanges = applicableProperties.get(propertyURI);
Resource rangeRes =
(foundRanges[0] != null)
? foundRanges[0]
: (op.getRange() == null && foundRanges[1] != null)
? foundRanges[1]
: op.getRange();
PropertyInstance pi = new PropertyInstance();
if (rangeRes != null) {
String rangeClassURI;
if (rangeRes.isAnon()) {
rangeClassURI = PSEUDO_BNODE_NS + rangeRes.getId().toString();
} else {
rangeClassURI = (String) rangeRes.getURI();
}
pi.setRangeClassURI(rangeClassURI);
try {
pi.setRangeClassName(
getWebappDaoFactory().getVClassDao().getVClassByURI(rangeClassURI).getName());
// pi.setRangeClassName(getLabel(getOntModel().getOntResource(rangeClassURI)));
} catch (NullPointerException e) {
/* probably a union or intersection - need to handle this somehow */
}
} else {
pi.setRangeClassURI(OWL.Thing.getURI()); // TODO see above
}
pi.setDomainClassURI(domainURIStr);
try {
pi.setDomainClassName(
getWebappDaoFactory().getVClassDao().getVClassByURI(domainURIStr).getName());
// pi.setDomainClassName(getLabel(getOntModel().getOntResource(op.getDomain().getURI())));
} catch (NullPointerException e) {
/* probably a union or intersection - need to handle this somehow */
}
pi.setSubjectSide(true);
pi.setPropertyURI(op.getURI());
pi.setPropertyName(getLabelOrId(op)); // TODO
pi.setRangePublic(getLabelOrId(op));
pi.setDomainPublic(getLabelOrId(op));
propInsts.add(pi);
}
} finally {
ontModel.leaveCriticalSection();
}
Collections.sort(propInsts, new PropInstSorter());
return propInsts;
}