Where can I download the jtp jars? Are they free? (01)
D (02)
On 1/28/08 4:19 PM, "rick@xxxxxxxxxxxxxx" <rick@xxxxxxxxxxxxxx> wrote: (03)
> Pat:
>
> See below for an EJB using JTP with the OWLReasoningContext and the
> KIF2CNF parser. This has never been validated, it just builds on a
> snippet from the JTP documentation. Feel free to call if you want to
> chat ...
>
> Patrick Cassidy wrote:
>> Does anyone have on hand a functioning ontology translator to go from OWL
>> to KIF or some other FOL format?
>
>
> /**
> * @(#) TrustProviderProxyBean.java
> * @author <a href:mailto="rick@xxxxxxxxxxxxxx">Rick Murphy</a>
> * @version 0.1
> * @see <a href="http://www.rickmurphy.org/cps-license.html";>Citizen
> Privacy Service License</a>
> */
>
> package org.rickmurphy.pep;
>
> import java.io.InputStream;
> import java.io.BufferedReader;
> import java.io.InputStreamReader;
> import java.io.IOException;
>
> import java.net.URL;
> import java.net.MalformedURLException;
>
> import java.util.Iterator;
> import java.util.Map;
> import java.util.HashMap;
>
> import javax.ejb.SessionBean;
> import javax.ejb.SessionContext;
> import javax.ejb.EJBLocalHome;
> import javax.ejb.EJBLocalObject;
>
> import jtp.ReasoningException;
> import jtp.ReasoningStep;
> import jtp.ReasoningStepIterator;
>
> import jtp.context.owl.OWLReasoningContext;
>
> import jtp.fol.kif.KIF2CNF;
>
> import jtp.fol.parser.ParserBasedTranslator;
>
> import jtp.frame.vc.Goal;
>
> import jtp.modelim.AskingQueryProcessor;
>
> import jtp.ui.RDFQueryUtils;
>
> import com.hp.hpl.jena.rdf.model.Model;
> import com.hp.hpl.jena.rdf.model.ModelFactory;
>
> /**
> *
> */
> public class TrustProviderProxyBean implements
> TrustProviderProxy,SessionBean{
>
> private KIF2CNF kifParser;
> private OWLReasoningContext context;
>
> /**
> * @param goal
> * @return boolean
> * @throws ReasoningException
> */
> public boolean challenge(Goal goal) throws ReasoningException{
>
> AskingQueryProcessor queryProcessor = new AskingQueryProcessor();
>
> queryProcessor.setTranslator((ParserBasedTranslator)kifParser.createTranslator
> ());
> context.add(queryProcessor);
>
> return queryProcessor.acceptable(goal);
>
> }//challenge
>
> /**
> * @param goal
> * @return ReasoningStepIterator
> * @throws ReasoningException
> */
> public ReasoningStepIterator enforce(Goal goal) throws
> ReasoningException{
>
> ReasoningStepIterator iterator = context.ask(goal.toString());
>
> ReasoningStep step = null;
>
> while((step = iterator.next()) != null){
> step = iterator.next();
> //System.out.println("got step: " + step);
> }
>
> //persist and return provenance
> TrustProviderDAO dao = new TrustProviderDAO();
>
> return iterator;
>
> }//enforce
>
> /**
> * @throws CreateException
> * @throws ReasoningException
> * @throws IOException
> * @throws MalformedURLException
> */
> public void ejbCreate() throws
> MalformedURLException,IOException,ReasoningException{
>
> kifParser = new KIF2CNF();
>
> kifParser.setCaseSensitiveSymbols(true);
> kifParser.addNamespaceMapping("owl", "http://www.w3.org/2002/07/owl#";);
> kifParser.addNamespaceMapping("daml",
> "http://www.daml.org/2001/03/daml+oil#";);
> kifParser.addNamespaceMapping("rdf",
> "http://www.w3.org/1999/02/22-rdf-syntax-ns#";);
> kifParser.addNamespaceMapping("rdfs",
> "http://www.w3.org/2000/01/rdf-schema#";);
>
> context = new OWLReasoningContext();
> context.setUp();
>
> Model model = ModelFactory.createDefaultModel();
>
> URL pubLocURL = new URL("http://localhost/kb";);
> model.read(new BufferedReader(new InputStreamReader(new
> URL("http://www.osera.gov/privacy.owl";).openStream())),
> pubLocURL.toString());
>
> ((OWLReasoningContext)context).loadRDFKB(model, pubLocURL);
>
> HashMap nsToUriMap = new HashMap();
> RDFQueryUtils.addNamespaceMappingsFromKb(pubLocURL.toString(),
> model, nsToUriMap);
> for (Iterator it = nsToUriMap.entrySet().iterator(); it.hasNext();){
> Map.Entry ent = (Map.Entry)it.next();
>
> kifParser.addNamespaceMapping((String)ent.getKey(),(String)ent.getValue());
> }
> context.add(kifParser);
>
> }//ejbCreate
>
> /**
> * @param sessioncontext
> */
> public void setSessionContext( SessionContext sessioncontext
> ){}//setSessionContext
>
> /**
> *
> */
> public void ejbRemove( ){}//ejbRemove
>
> /**
> *
> */
> public void ejbPassivate( ){}//ejbPassivate
>
> /**
> *
> */
> public void ejbActivate( ){}//ejbActivate
>
> /**
> *
> */
> public void remove( ){}//remove
>
> /**
> * @param localObject
> * @return boolean
> */
> public boolean isIdentical(EJBLocalObject localObject){ return
> false;}//isIdentical
>
> /**
> * @return EJBLocalHome
> */
> public EJBLocalHome getEJBLocalHome(){return null;}//getEJBLocalHome
>
> /**
> * @return Object
> */
> public Object getPrimaryKey(){return null;}//getPrimaryKey
>
> }//TrustProviderProxyBean
>
>
>> Pat
>>
>> Patrick Cassidy
>> MICRA, Inc.
>> 908-561-3416
>> cell: 908-565-4053
>> cassidy@xxxxxxxxx
>>
>>
>>
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>>
>>
> (04)
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