Hi --
It's not OWL, but you may be interested in the author friendly system and
examples online at the site below.
In particular:
www.reengineeringllc.com/demo_agents/OwlResearchOnt.agent
www.reengineeringllc.com/demo_agents/RDFQueryLangComparison1.agent
In addition to its browser author-user interface, the system can be used
from Java (and other languages):
www.reengineeringllc.com/iblClient1.java
Apologies if you have seen this before, and thanks for comments.
-- Adrian
Internet Business Logic
A Wiki and SOA Endpoint for Apps in Executable Open Vocabulary English over
SQL and RDF
Online at www.reengineeringllc.com
Shared use is free, and there are no advertisements
Adrian Walker
Reengineering
On Mon, Jun 1, 2015 at 5:42 AM, Diana Magdi <[email protected]> wrote:
> Hi,
>
> I have an large OWL ontology file as RDF which includes swrl rules and i'm
> trying to reason in java with jena TDB using Pellet but when i run the
> following code on eclipse.
>
>
>
> public class TestJenaTDB {
>
>
> public static void main(String[] args) {
>
> // TODO Auto-generated method stub
>
>
>
> String directory = "TDB";
>
> Dataset dataset = TDBFactory.createDataset(directory);
>
> Model tdb = dataset.getDefaultModel();
>
> OntModel ont = ModelFactory.createOntologyModel(PelletReasonerFactory.
> THE_SPEC,tdb);
>
> // read the input file
>
> String source = "Ontology_rdf.owl";
>
> ont.read(source,"RDF/XML");
>
> //FileManager.get().readModel( tdb, source,"RDF/XML");
>
> PelletOptions.USE_CONTINUOUS_RULES = true;
>
> Reasoner reasoner = PelletReasonerFactory.theInstance().create();
>
> reasoner = reasoner.bindSchema(ont);
>
>
> InfModel infModel = ModelFactory.createInfModel(reasoner, tdb);
>
> String sparqlQueryString = "PREFIX ling: <
> http://www.lsis.org/LingOnto/LingOnto.owl#> PREFIX rdf: <
> http://www.w3.org/1999/02/22-rdf-syntax-ns#> SELECT ?p WHERE {\n" + "?p
> rdf:type ling:PER }";
>
>
> Query query = QueryFactory.create(sparqlQueryString) ;
>
> QueryExecution qexec = QueryExecutionFactory.create(query, infModel) ;
>
> ResultSet results = qexec.execSelect() ;
>
> ResultSetFormatter.out(results) ;
>
>
>
> TDB.sync(dataset);
>
> qexec.close();
>
> tdb.close();
>
> dataset.close();
>
>
> }
>
>
> }
>
>
> i get this exception:
>
>
> Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
>
> at org.mindswap.pellet.EdgeList.getEdges(EdgeList.java:202)
>
> at com.clarkparsia.pellet.rules.rete.AlphaEdgeNode.getEdges(
> AlphaEdgeNode.java:115)
>
> at com.clarkparsia.pellet.rules.rete.AlphaEdgeNode.getMatches(
> AlphaEdgeNode.java:105)
>
> at com.clarkparsia.pellet.rules.rete.AlphaEdgeNode.getMatches(
> AlphaEdgeNode.java:89)
>
> at com.clarkparsia.pellet.rules.rete.BetaMemoryIndex$JoinIndexed.getWMEs(
> BetaMemoryIndex.java:208)
>
> at com.clarkparsia.pellet.rules.rete.BetaMemoryNode.activate(
> BetaMemoryNode.java:71)
>
> at com.clarkparsia.pellet.rules.rete.BetaNode.activateChildren(
> BetaNode.java:24)
>
> at com.clarkparsia.pellet.rules.rete.BetaMemoryNode.activate(
> BetaMemoryNode.java:75)
>
> at com.clarkparsia.pellet.rules.rete.BetaNode.activateChildren(
> BetaNode.java:24)
>
> at com.clarkparsia.pellet.rules.rete.BetaMemoryNode.activate(
> BetaMemoryNode.java:75)
>
> at com.clarkparsia.pellet.rules.rete.BetaNode.activateChildren(
> BetaNode.java:24)
>
> at com.clarkparsia.pellet.rules.rete.BetaMemoryNode.activate(
> BetaMemoryNode.java:58)
>
> at com.clarkparsia.pellet.rules.rete.AlphaNode.activate(AlphaNode.java:55)
>
>
>
> What am I doing incorrect ? Thanks
>
