Я создал онтологию в протеже и хочу отобразить значения свойств объекта и сохранить значения в массиве, чтобы я мог использовать значение для выполнения рассуждений. Проблема в том, что я не могу получить значения типа данных только домен и диапазон отображается, но ошибок нет, помогите найти решение
import java.io.IOException;
import com.hp.hpl.jena.ontology.DatatypeProperty;
import com.hp.hpl.jena.ontology.EnumeratedClass;
import com.hp.hpl.jena.ontology.Individual;
import com.hp.hpl.jena.ontology.OntClass;
import com.hp.hpl.jena.ontology.OntModel;
import com.hp.hpl.jena.ontology.OntResource;
import com.hp.hpl.jena.rdf.model.Model;
import com.hp.hpl.jena.rdf.model.ModelFactory;
import com.hp.hpl.jena.rdf.model.RDFNode;
import com.hp.hpl.jena.util.FileManager;
import com.hp.hpl.jena.util.iterator.ExtendedIterator;
public class GetStartedSemWeb {
static String defaultNameSpace ="http://semanticweb.org/ontologies#";
Model schema = null;
public static void main(String[] args) throws IOException
{
GetStartedSemWeb getsemweb = new GetStartedSemWeb();
System.out.println(" Adding student ontology ");
getsemweb.loadontology();
}
private void loadontology() throws IOException
{
schema = ModelFactory.createOntologyModel();
java.io.InputStream inschema = FileManager.get().open("C:/Users/Desktop/Documents/Extracting knowledge from ontology using jena/getstarted.owl");
schema.read(inschema,defaultNameSpace);
System.out.println("new ontology added");
ExtendedIterator it = ((OntModel) schema).listClasses();
while(it.hasNext())
{
OntClass cls= (OntClass)it.next();
System.out.println("URI of classes of Merged University Ontology are "+cls.getURI());
ExtendedIterator pinstance = ((OntClass)cls).listInstances();
while(pinstance.hasNext())
{
Individual pinstance1= (Individual)pinstance.next();
System.out.println("Individual of " +cls.getLocalName() + pinstance1.getLocalName());
ExtendedIterator dp = ((OntModel) schema).listDatatypeProperties();
while(dp.hasNext())
{
DatatypeProperty p = (DatatypeProperty) dp.next();
if (p.isDatatypeProperty() && p.getDomain()!=null && p.getRange()!=null)
{
System.out.println("Data Property Name: "+ p.getLocalName());
System.out.println("Domain: "+ p.getDomain().getLocalName());
EnumeratedClass e = null;
ExtendedIterator i = null;
if(p.getRange().asClass().isEnumeratedClass())
{
e = p.getRange().asClass().asEnumeratedClass();
i = e.getOneOf().iterator();
RDFNode prop = null;
String s=null;
System.out.println("Range: ");
while(i.hasNext())
{
prop = (RDFNode) i.next();
s=((Object) prop).getClass().toString().split("\\^\\^")[0];
RDFNode propvalue = ((OntResource) prop).getPropertyValue(p);
System.out.println(" Property value is" +propvalue);
System.out.println(s);
}
}
else
System.out.println("Range: "+ p.getRange().getLocalName());
}
System.out.println("\n");
}
}
}
}
schema.close();
} }
OWL file content
// OWL file content
<rdf:RDFxml:base="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl"><owl:Ontology rdf:about="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl"><owl:versionIRI rdf:resource="http://www.semanticweb.org/ontologies/2013/9/Ontology1382504980350.owl"/></owl:Ontology><!--
///////////////////////////////////////////////////////////////////////////////////////
//
// Datatypes
//
///////////////////////////////////////////////////////////////////////////////////////
--><!--
///////////////////////////////////////////////////////////////////////////////////////
//
// Object Properties
//
///////////////////////////////////////////////////////////////////////////////////////
--><!-- http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#hasaAcquired - -><owl:ObjectProperty rdf:about="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#hasaAcquired"> <rdfs:range rdf:resource="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#Academic"/><rdfs:domain rdf:resource="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#Student"/></owl:ObjectProperty><!-- http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#isAcquiredBy --><owl:ObjectProperty rdf:about="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#isAcquiredBy"><rdfs:domain rdf:resource="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#Academic"/><rdfs:range rdf:resource="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#Student"/><owl:inverseOf rdf:resource="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#hasaAcquired"/></owl:ObjectProperty><!--
///////////////////////////////////////////////////////////////////////////////////////
//
// Data properties
//
///////////////////////////////////////////////////////////////////////////////////////
--><!-- http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#hasAge --> <owl:DatatypeProperty r df:about="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#hasAge"><rdfs:domain rdf:resource="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#Student"/><rdfs:range rdf:resource="http://www.w3.org/2002/07/owl#real"/></owl:DatatypeProperty><!-- http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#hasAggregate --><owl:DatatypeProperty rdf:about="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#hasAggregate"><rdfs:domain rdf:resource="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#Student"/><rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#integer"/></owl:DatatypeProperty><!-- http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#hasEmailaddress --><owl:DatatypeProperty rdf:about="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#hasEmailaddress"><rdfs:domain rdf:resource="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#Student"/><rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/></owl:DatatypeProperty><!-- http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#hasGender --><owl:DatatypeProperty rdf:about="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#hasGender"><rdfs:domain rdf:resource="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#Student"/><rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/></owl:DatatypeProperty><!-- http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#hasName --><owl:DatatypeProperty rdf:about="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#hasName"><rdfs:domain rdf:resource="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#Student"/><rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/></owl:DatatypeProperty><!-- http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#hasPostaladress --><owl:DatatypeProperty rdf:about="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#hasPostaladress"><rdfs:domain rdf:resource="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#Student"/><rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/></owl:DatatypeProperty><!--
///////////////////////////////////////////////////////////////////////////////////////
//
// Classes
//
///////////////////////////////////////////////////////////////////////////////////////
--><!-- http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#Academic --><owl:Class rdf:about="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#Academic"><rdfs:subClassOf rdf:resource="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#Student"/></owl:Class><!-- http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#General --><owl:Class rdf:about="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#General"><rdfs:subClassOf rdf:resource="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#Student"/></owl:Class><!-- http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#Personal --><owl:Class rdf:about="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#Personal"><rdfs:subClassOf rdf:resource="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#Student"/></owl:Class><!-- http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#Student --><owl:Class rdf:about="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#Student"/><!--
///////////////////////////////////////////////////////////////////////////////////////
//
// Individuals
//
///////////////////////////////////////////////////////////////////////////////////////
--><!-- http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#jack --><owl:NamedIndividual rdf:about="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#jack"><hasGender>male</hasGender><hasAggregate>50</hasAggregate><hasAge>20</hasAge><hasPostaladress>illonious chicago</hasPostaladress><hasName>jack</hasName><hasEmailaddress>jackid</hasEmailaddress></owl:NamedIndividual><!-- http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#jill_ --><owl:NamedIndividual rdf:about="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#jill_"><hasGender>male</hasGender><hasEmailaddress>jillid</hasEmailaddress><hasName>jill</hasName><hasAggregate>34</hasAggregate><hasPostaladress>chicago</hasPostaladress><hasAge>21</hasAge></owl:NamedIndividual><!-- http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#jim --><owl:NamedIndividual rdf:about="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#jim"><hasEmailaddress>jimid</hasEmailaddress><hasAggregate>70</hasAggregate><hasName>jim</hasName><hasGender>male</hasGender><hasAge>23</hasAge><hasPostaladress>chicago</hasPostaladress></owl:NamedIndividual><!--
///////////////////////////////////////////////////////////////////////////////////////
//
// General axioms
//
///////////////////////////////////////////////////////////////////////////////////////
--><rdf:Description><rdf:type rdf:resource="http://www.w3.org/2002/07/owl#AllDisjointClasses"/><owl:members rdf:parseType="Collection"><rdf:Description rdf:about="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#Academic"/><rdf:Description rdf:about="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#General"/><rdf:Description rdf:about="http://www.semanticweb.org/ontologies/2013/9/23/Ontology1382505604507.owl#Personal"/></owl:members></rdf:Description></rdf:RDF>