On 5/15/2013 17:32, Leo Anbarasan wrote:
This method return empty result. I have run this in topbraid composer.
It works fine and return a result. I am not sure about it in API.
Could give an example to execute SPIN function.
Your SPARQL syntax looks correct, and I don't have enough background to
give more useful feedback here. Calling and registering SPIN functions
is done by the OWLRL and the Kennedys Java code examples that come with
the SPIN API download. Please take a look at those. I have attached the
kennedys example snippet below.
Holger
---
package org.topbraid.spin.examples;
import java.util.List;
import org.topbraid.spin.constraints.ConstraintViolation;
import org.topbraid.spin.constraints.SPINConstraints;
import org.topbraid.spin.inference.SPINInferences;
import org.topbraid.spin.system.SPINLabels;
import org.topbraid.spin.system.SPINModuleRegistry;
import org.topbraid.spin.util.JenaUtil;
import com.hp.hpl.jena.ontology.OntModel;
import com.hp.hpl.jena.ontology.OntModelSpec;
import com.hp.hpl.jena.rdf.model.Model;
import com.hp.hpl.jena.rdf.model.ModelFactory;
import com.hp.hpl.jena.rdf.model.Resource;
import com.hp.hpl.jena.shared.ReificationStyle;
/**
* Loads the Kennedys SPIN ontology and runs inferences and then
* constraint checks on it.
*
* @author Holger Knublauch
*/
public class KennedysInferencingAndConstraintsExample {
public static void main(String[] args) {
// Initialize system functions and templates
SPINModuleRegistry.get().init();
// Load main file
Model baseModel =
ModelFactory.createDefaultModel(ReificationStyle.Minimal);
baseModel.read("http://topbraid.org/examples/kennedysSPIN";);
// Create OntModel with imports
OntModel ontModel =
JenaUtil.createOntologyModel(OntModelSpec.OWL_MEM,baseModel);
// Create and add Model for inferred triples
Model newTriples =
ModelFactory.createDefaultModel(ReificationStyle.Minimal);
ontModel.addSubModel(newTriples);
// Register locally defined functions
SPINModuleRegistry.get().registerAll(ontModel, null);
// Run all inferences
SPINInferences.run(ontModel, newTriples, null, null, false, null);
System.out.println("Inferred triples: " + newTriples.size());
// Run all constraints
List<ConstraintViolation> cvs = SPINConstraints.check(ontModel,
null);
System.out.println("Constraint violations:");
for(ConstraintViolation cv : cvs) {
System.out.println(" - at " +
SPINLabels.get().getLabel(cv.getRoot()) + ": " + cv.getMessage());
}
// Run constraints on a single instance only
Resource person = cvs.get(0).getRoot();
List<ConstraintViolation> localCVS =
SPINConstraints.check(person, null);
System.out.println("Constraint violations for " +
SPINLabels.get().getLabel(person) + ": " + localCVS.size());
}
}
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