development for NIHVIVO-2410 (specific type inference in lieu of moniker)

This commit is contained in:
stellamit 2011-05-10 15:43:59 +00:00
parent 73e0916a04
commit 132cbdce2c
2 changed files with 303 additions and 41 deletions

View file

@ -2,6 +2,7 @@
package edu.cornell.mannlib.vitro.webapp.reasoner;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
@ -35,8 +36,7 @@ import com.hp.hpl.jena.vocabulary.RDFS;
/**
* Allows for real-time incremental materialization or retraction of RDFS-
* style class and property subsumption based ABox inferences as statements
* are added to or removed from the (ABox or TBox) knowledge base.
*
* are added to or removed from the (ABox or TBox) knowledge base.
*/
public class SimpleReasoner extends StatementListener {
@ -101,6 +101,7 @@ public class SimpleReasoner extends StatementListener {
try {
if (stmt.getPredicate().equals(RDF.type)) {
addedABoxTypeAssertion(stmt, inferenceModel);
setMostSpecificTypes(stmt.getSubject(), inferenceModel);
} else {
addedABoxAssertion(stmt,inferenceModel);
}
@ -121,6 +122,7 @@ public class SimpleReasoner extends StatementListener {
try {
if (stmt.getPredicate().equals(RDF.type)) {
removedABoxTypeAssertion(stmt, inferenceModel);
setMostSpecificTypes(stmt.getSubject(), inferenceModel);
} else {
removedABoxAssertion(stmt, inferenceModel);
}
@ -156,22 +158,22 @@ public class SimpleReasoner extends StatementListener {
OntClass object = tboxModel.getOntClass(((Resource)stmt.getObject()).getURI());
if (stmt.getPredicate().equals(RDFS.subClassOf)) {
addedSubClass(subject,object);
addedSubClass(subject,object,inferenceModel);
} else {
// equivalent class is the same as subclass in both directions
addedSubClass(subject,object);
addedSubClass(object,subject);
addedSubClass(subject,object,inferenceModel);
addedSubClass(object,subject,inferenceModel);
}
} else if (stmt.getPredicate().equals(RDFS.subPropertyOf) || stmt.getPredicate().equals(OWL.equivalentProperty)) {
OntProperty subject = tboxModel.getOntProperty((stmt.getSubject()).getURI());
OntProperty object = tboxModel.getOntProperty(((Resource)stmt.getObject()).getURI());
if (stmt.getPredicate().equals(RDFS.subPropertyOf)) {
addedSubProperty(subject, object, inferenceModel);
addedSubProperty(subject,object,inferenceModel);
} else {
// equivalent property is the same as subProperty in both directions
addedSubProperty(subject, object, inferenceModel);
addedSubProperty(object, subject, inferenceModel);
addedSubProperty(subject,object,inferenceModel);
addedSubProperty(object,subject,inferenceModel);
}
}
} catch (Exception e) {
@ -202,11 +204,11 @@ public class SimpleReasoner extends StatementListener {
OntClass object = tboxModel.getOntClass(((Resource)stmt.getObject()).getURI());
if (stmt.getPredicate().equals(RDFS.subClassOf)) {
removedSubClass(subject,object);
removedSubClass(subject,object,inferenceModel);
} else {
// equivalent class is the same as subclass in both directions
removedSubClass(subject,object);
removedSubClass(object,subject);
removedSubClass(subject,object,inferenceModel);
removedSubClass(object,subject,inferenceModel);
}
} else if (stmt.getPredicate().equals(RDFS.subPropertyOf) || stmt.getPredicate().equals(OWL.equivalentProperty)) {
OntProperty subject = tboxModel.getOntProperty((stmt.getSubject()).getURI());
@ -494,11 +496,11 @@ public class SimpleReasoner extends StatementListener {
* individual that is typed as B, either in the ABox or in the
* inferred model, assert that it is of type A.
*/
public void addedSubClass(OntClass subClass, OntClass superClass) {
public void addedSubClass(OntClass subClass, OntClass superClass, Model inferenceModel) {
log.debug("subClass = " + subClass.getURI() + " superClass = " + superClass.getURI());
aboxModel.enterCriticalSection(Lock.READ);
aboxModel.enterCriticalSection(Lock.WRITE);
inferenceModel.enterCriticalSection(Lock.WRITE);
try {
@ -517,6 +519,7 @@ public class SimpleReasoner extends StatementListener {
if (!inferenceModel.contains(infStmt)) {
inferenceModel.add(infStmt);
setMostSpecificTypes(infStmt.getSubject(), inferenceModel);
}
}
} finally {
@ -532,11 +535,11 @@ public class SimpleReasoner extends StatementListener {
* UNLESS the individual is of some type C that is a subClass
* of A (including A itself)
*/
public void removedSubClass(OntClass subClass, OntClass superClass) {
public void removedSubClass(OntClass subClass, OntClass superClass, Model inferenceModel) {
log.debug("subClass = " + subClass.getURI() + ". superClass = " + superClass.getURI());
aboxModel.enterCriticalSection(Lock.READ);
aboxModel.enterCriticalSection(Lock.WRITE);
inferenceModel.enterCriticalSection(Lock.WRITE);
try {
@ -559,6 +562,7 @@ public class SimpleReasoner extends StatementListener {
if (inferenceModel.contains(infStmt)) {
inferenceModel.remove(infStmt);
setMostSpecificTypes(infStmt.getSubject(), inferenceModel);
}
}
} finally {
@ -661,9 +665,9 @@ public class SimpleReasoner extends StatementListener {
* indicate them for the individual with the core:mostSpecificType
* annotation.
*/
public void setMostSpecificTypes(Resource individual) {
public void setMostSpecificTypes(Resource individual, Model inferenceModel) {
aboxModel.enterCriticalSection(Lock.READ);
aboxModel.enterCriticalSection(Lock.WRITE);
inferenceModel.enterCriticalSection(Lock.READ);
tboxModel.enterCriticalSection(Lock.READ);
@ -672,12 +676,13 @@ public class SimpleReasoner extends StatementListener {
unionModel.addSubModel(aboxModel);
unionModel.addSubModel(inferenceModel);
HashSet<String> typeURIs = new HashSet<String>();
StmtIterator iter = unionModel.listStatements((Resource) null, RDF.type, (RDFNode) null);
List<OntClass> types = new ArrayList<OntClass>();
StmtIterator stmtIter = unionModel.listStatements(individual, RDF.type, (RDFNode) null);
while (iter.hasNext()) {
while (stmtIter.hasNext()) {
Statement stmt = iter.next();
Statement stmt = stmtIter.next();
if ( !stmt.getObject().isResource() ) {
log.warn("The object of this rdf:type assertion is expected to be a resource: " + stmtString(stmt));
@ -692,21 +697,48 @@ public class SimpleReasoner extends StatementListener {
}
if (ontClass.isAnon()) continue;
if (ontClass.hasSubClass()) continue;
typeURIs.add(ontClass.getURI());
Iterator<OntClass> eIter = ontClass.listEquivalentClasses();
while (eIter.hasNext()) {
OntClass equivClass = eIter.next();
if (equivClass.isAnon()) continue;
typeURIs.add(equivClass.getURI());
}
types.add(ontClass);
}
HashSet<String> typeURIs = new HashSet<String>();
List<OntClass> types2 = new ArrayList<OntClass>();
types2.addAll(types);
setMostSpecificTypes(individual, typeURIs);
Iterator<OntClass> typeIter = types.iterator();
while (typeIter.hasNext()) {
OntClass type = typeIter.next();
boolean add = true;
Iterator<OntClass> typeIter2 = types2.iterator();
while (typeIter2.hasNext()) {
OntClass type2 = typeIter2.next();
if (type.equals(type2)) {
continue;
}
if (type.hasSubClass(type2, false) && !type2.hasSubClass(type, false)) {
add = false;
break;
}
}
if (add) {
typeURIs.add(type.getURI());
Iterator<OntClass> eIter = type.listEquivalentClasses();
while (eIter.hasNext()) {
OntClass equivClass = eIter.next();
if (equivClass.isAnon()) continue;
typeURIs.add(equivClass.getURI());
}
}
}
setMostSpecificTypes(individual, typeURIs, inferenceModel);
} finally {
aboxModel.leaveCriticalSection();
@ -717,27 +749,30 @@ public class SimpleReasoner extends StatementListener {
return;
}
public void setMostSpecificTypes(Resource individual, HashSet<String> typeURIs) {
public void setMostSpecificTypes(Resource individual, HashSet<String> typeURIs, Model inferenceModel) {
aboxModel.enterCriticalSection(Lock.WRITE);
try {
Model retractions = ModelFactory.createDefaultModel();
// remove obsolete most-specific-type assertions
StmtIterator iter = aboxModel.listStatements((Resource) null, mostSpecificType, (RDFNode) null);
StmtIterator iter = aboxModel.listStatements(individual, mostSpecificType, (RDFNode) null);
while (iter.hasNext()) {
Statement stmt = iter.next();
if ( !stmt.getObject().isLiteral() ) {
log.warn("The object of this assertion is expected to be a literal: " + stmtString(stmt));
continue;
}
if (!typeURIs.contains(stmt.getObject().asLiteral().getLexicalForm())) {
aboxModel.remove(stmt);
retractions.add(stmt);
}
}
aboxModel.remove(retractions);
// add new most-specific-type assertions
Iterator<String> typeIter = typeURIs.iterator();
@ -746,6 +781,7 @@ public class SimpleReasoner extends StatementListener {
Literal uriLiteral = ResourceFactory.createTypedLiteral(typeURI, XSDDatatype.XSDanyURI);
if (!aboxModel.contains(individual, mostSpecificType, uriLiteral)) {
Statement toAdd = ResourceFactory.createStatement(individual, mostSpecificType, uriLiteral);
aboxModel.add(individual, mostSpecificType, uriLiteral);
}
}
@ -791,7 +827,7 @@ public class SimpleReasoner extends StatementListener {
// recompute the inferences
inferenceRebuildModel.enterCriticalSection(Lock.WRITE);
aboxModel.enterCriticalSection(Lock.READ);
aboxModel.enterCriticalSection(Lock.WRITE);
tboxModel.enterCriticalSection(Lock.READ);
try {
@ -802,6 +838,7 @@ public class SimpleReasoner extends StatementListener {
while (iter.hasNext()) {
Statement stmt = iter.next();
addedABoxTypeAssertion(stmt, inferenceRebuildModel);
setMostSpecificTypes(stmt.getSubject(), inferenceRebuildModel);
}
log.info("Computing property-based ABox inferences");

View file

@ -9,15 +9,20 @@ import org.junit.Before;
import org.junit.Test;
import org.mindswap.pellet.jena.PelletReasonerFactory;
import com.hp.hpl.jena.datatypes.xsd.XSDDatatype;
import com.hp.hpl.jena.ontology.AnnotationProperty;
import com.hp.hpl.jena.ontology.OntClass;
import com.hp.hpl.jena.ontology.OntModel;
import com.hp.hpl.jena.ontology.OntModelSpec;
import com.hp.hpl.jena.ontology.OntProperty;
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.rdf.model.Resource;
import com.hp.hpl.jena.rdf.model.ResourceFactory;
import com.hp.hpl.jena.rdf.model.Statement;
import com.hp.hpl.jena.rdf.model.StmtIterator;
import com.hp.hpl.jena.vocabulary.OWL;
import com.hp.hpl.jena.vocabulary.RDF;
import edu.cornell.mannlib.vitro.testing.AbstractTestClass;
@ -28,6 +33,7 @@ public class SimpleReasonerTest extends AbstractTestClass {
private Resource objectProperty = ResourceFactory.createResource("http://www.w3.org/2002/07/owl#ObjectProperty");
private static final String mostSpecificTypePropertyURI = "http://vivoweb.org/ontology/core#mostSpecificType";
@Before
public void suppressErrorOutput() {
@ -35,7 +41,7 @@ public class SimpleReasonerTest extends AbstractTestClass {
// Turn off log messages to console
setLoggerLevel(SimpleReasoner.class, Level.OFF);
}
/*
* Test that when an individual is asserted to be of a type,
* its asserted type is not added to the inference graph
@ -46,6 +52,7 @@ public class SimpleReasonerTest extends AbstractTestClass {
// Create a Tbox with a simple class hierarchy. B is a subclass of A.
// Pellet will compute TBox inferences
OntModel tBox = ModelFactory.createOntologyModel(PelletReasonerFactory.THE_SPEC);
AnnotationProperty mostSpecificType = tBox.createAnnotationProperty(mostSpecificTypePropertyURI);
OntClass classA = tBox.createClass("http://test.vivo/A");
classA.setLabel("class A", "en-US");
@ -84,6 +91,7 @@ public class SimpleReasonerTest extends AbstractTestClass {
// Create a Tbox with a simple class hierarchy. D and E are subclasses
// of C. B and C are subclasses of A. Pellet will compute TBox inferences.
OntModel tBox = ModelFactory.createOntologyModel(PelletReasonerFactory.THE_SPEC);
AnnotationProperty mostSpecificType = tBox.createAnnotationProperty(mostSpecificTypePropertyURI);
OntClass classA = tBox.createClass("http://test.vivo/A");
classA.setLabel("class A", "en-US");
@ -137,6 +145,7 @@ public class SimpleReasonerTest extends AbstractTestClass {
// Pellet will compute TBox inferences
OntModel tBox = ModelFactory.createOntologyModel(PelletReasonerFactory.THE_SPEC);
AnnotationProperty mostSpecificType = tBox.createAnnotationProperty(mostSpecificTypePropertyURI);
OntModel aBox = ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM);
Model inf = ModelFactory.createDefaultModel();
@ -184,6 +193,7 @@ public class SimpleReasonerTest extends AbstractTestClass {
// Pellet will compute TBox inferences
OntModel tBox = ModelFactory.createOntologyModel(PelletReasonerFactory.THE_SPEC);
AnnotationProperty mostSpecificType = tBox.createAnnotationProperty(mostSpecificTypePropertyURI);
OntModel aBox = ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM);
Model inf = ModelFactory.createDefaultModel();
@ -223,6 +233,7 @@ public class SimpleReasonerTest extends AbstractTestClass {
// Pellet will compute TBox inferences
OntModel tBox = ModelFactory.createOntologyModel(PelletReasonerFactory.THE_SPEC);
AnnotationProperty mostSpecificType = tBox.createAnnotationProperty(mostSpecificTypePropertyURI);
OntModel aBox = ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM);
Model inf = ModelFactory.createDefaultModel();
@ -271,6 +282,7 @@ public class SimpleReasonerTest extends AbstractTestClass {
// and B is a subclass of A. Pellet will compute TBox inferences.
OntModel tBox = ModelFactory.createOntologyModel(PelletReasonerFactory.THE_SPEC);
AnnotationProperty mostSpecificType = tBox.createAnnotationProperty(mostSpecificTypePropertyURI);
OntClass classA = tBox.createClass("http://test.vivo/A");
classA.setLabel("class A", "en-US");
@ -336,6 +348,7 @@ public class SimpleReasonerTest extends AbstractTestClass {
// Pellet will compute TBox inferences
OntModel tBox = ModelFactory.createOntologyModel(PelletReasonerFactory.THE_SPEC);
AnnotationProperty mostSpecificType = tBox.createAnnotationProperty(mostSpecificTypePropertyURI);
OntModel aBox = ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM);
Model inf = ModelFactory.createDefaultModel();
@ -403,6 +416,7 @@ public class SimpleReasonerTest extends AbstractTestClass {
// Pellet will compute TBox inferences
OntModel tBox = ModelFactory.createOntologyModel(PelletReasonerFactory.THE_SPEC);
AnnotationProperty mostSpecificType = tBox.createAnnotationProperty(mostSpecificTypePropertyURI);
OntModel aBox = ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM);
Model inf = ModelFactory.createDefaultModel();
@ -462,6 +476,7 @@ public class SimpleReasonerTest extends AbstractTestClass {
// Pellet will compute TBox inferences
OntModel tBox = ModelFactory.createOntologyModel(PelletReasonerFactory.THE_SPEC);
AnnotationProperty mostSpecificType = tBox.createAnnotationProperty(mostSpecificTypePropertyURI);
OntModel aBox = ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM);
Model inf = ModelFactory.createDefaultModel();
@ -547,6 +562,7 @@ public class SimpleReasonerTest extends AbstractTestClass {
// Pellet will compute TBox inferences
OntModel tBox = ModelFactory.createOntologyModel(PelletReasonerFactory.THE_SPEC);
AnnotationProperty mostSpecificType = tBox.createAnnotationProperty(mostSpecificTypePropertyURI);
OntModel aBox = ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM);
Model inf = ModelFactory.createDefaultModel();
@ -589,6 +605,7 @@ public class SimpleReasonerTest extends AbstractTestClass {
// Pellet will compute TBox inferences
OntModel tBox = ModelFactory.createOntologyModel(PelletReasonerFactory.THE_SPEC);
AnnotationProperty mostSpecificType = tBox.createAnnotationProperty(mostSpecificTypePropertyURI);
OntModel aBox = ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM);
Model inf = ModelFactory.createDefaultModel();
@ -630,6 +647,7 @@ public class SimpleReasonerTest extends AbstractTestClass {
// Pellet will compute TBox inferences
OntModel tBox = ModelFactory.createOntologyModel(PelletReasonerFactory.THE_SPEC);
AnnotationProperty mostSpecificType = tBox.createAnnotationProperty(mostSpecificTypePropertyURI);
OntModel aBox = ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM);
Model inf = ModelFactory.createDefaultModel();
@ -684,6 +702,7 @@ public class SimpleReasonerTest extends AbstractTestClass {
// Pellet will compute TBox inferences
OntModel tBox = ModelFactory.createOntologyModel(PelletReasonerFactory.THE_SPEC);
AnnotationProperty mostSpecificType = tBox.createAnnotationProperty(mostSpecificTypePropertyURI);
OntModel aBox = ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM);
Model inf = ModelFactory.createDefaultModel();
@ -726,6 +745,7 @@ public class SimpleReasonerTest extends AbstractTestClass {
// Pellet will compute TBox inferences
OntModel tBox = ModelFactory.createOntologyModel(PelletReasonerFactory.THE_SPEC);
AnnotationProperty mostSpecificType = tBox.createAnnotationProperty(mostSpecificTypePropertyURI);
OntModel aBox = ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM);
Model inf = ModelFactory.createDefaultModel();
@ -782,6 +802,7 @@ public class SimpleReasonerTest extends AbstractTestClass {
// Pellet will compute TBox inferences
OntModel tBox = ModelFactory.createOntologyModel(PelletReasonerFactory.THE_SPEC);
AnnotationProperty mostSpecificType = tBox.createAnnotationProperty(mostSpecificTypePropertyURI);
OntModel aBox = ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM);
Model inf = ModelFactory.createDefaultModel();
@ -849,6 +870,7 @@ public class SimpleReasonerTest extends AbstractTestClass {
// Pellet will compute TBox inferences
OntModel tBox = ModelFactory.createOntologyModel(PelletReasonerFactory.THE_SPEC);
AnnotationProperty mostSpecificType = tBox.createAnnotationProperty(mostSpecificTypePropertyURI);
OntModel aBox = ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM);
Model inf = ModelFactory.createDefaultModel();
@ -933,6 +955,209 @@ public class SimpleReasonerTest extends AbstractTestClass {
}
@Test
/*
* Test computation of mostSpecificType annotations in response
* to an added/removed ABox type assertion.
*/
public void mstTest1(){
// Create TBox, ABox and Inference models and register
// the ABox reasoner listeners with the ABox and TBox
// Pellet will compute TBox inferences
OntModel tBox = ModelFactory.createOntologyModel(PelletReasonerFactory.THE_SPEC);
OntModel aBox = ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM);
Model inf = ModelFactory.createDefaultModel();
SimpleReasoner simpleReasoner = new SimpleReasoner(tBox, aBox, inf);
aBox.register(simpleReasoner);
tBox.register(new SimpleReasonerTBoxListener(simpleReasoner));
// Set up the Tbox with a class hierarchy. C is a subclass of A
// and Y. D and E are subclasses C. B is a subclass of D.
// Pellet will compute TBox inferences.
AnnotationProperty mostSpecificType = tBox.createAnnotationProperty(mostSpecificTypePropertyURI);
OntClass classA = tBox.createClass("http://test.vivo/A");
classA.setLabel("class A", "en-US");
OntClass classB = tBox.createClass("http://test.vivo/B");
classB.setLabel("class B", "en-US");
OntClass classC = tBox.createClass("http://test.vivo/C");
classC.setLabel("class C", "en-US");
OntClass classD = tBox.createClass("http://test.vivo/D");
classD.setLabel("class D", "en-US");
OntClass classE = tBox.createClass("http://test.vivo/E");
classE.setLabel("class E", "en-US");
OntClass classY = tBox.createClass("http://test.vivo/Y");
classE.setLabel("class Y", "en-US");
classY.addSubClass(classC);
classA.addSubClass(classC);
classC.addSubClass(classD);
classC.addSubClass(classE);
classD.addSubClass(classB);
// Add the statement individual x is of type Y to the ABox
Resource ind_x = aBox.createResource("http://test.vivo/x");
aBox.add(ind_x, RDF.type, classD);
// Verify ind_x mostSpecificType annotation for D
Assert.assertTrue(aBox.contains(ind_x, mostSpecificType, ResourceFactory.createTypedLiteral(classD.getURI(), XSDDatatype.XSDanyURI)));
// Verify ind_x doesn't have a mostSpecificType annotation for
// A, Y, C, E or B.
Assert.assertFalse(aBox.contains(ind_x, mostSpecificType, ResourceFactory.createTypedLiteral(classA.getURI(), XSDDatatype.XSDanyURI)));
Assert.assertFalse(aBox.contains(ind_x, mostSpecificType, ResourceFactory.createTypedLiteral(classY.getURI(), XSDDatatype.XSDanyURI)));
Assert.assertFalse(aBox.contains(ind_x, mostSpecificType, ResourceFactory.createTypedLiteral(classC.getURI(), XSDDatatype.XSDanyURI)));
Assert.assertFalse(aBox.contains(ind_x, mostSpecificType, ResourceFactory.createTypedLiteral(classE.getURI(), XSDDatatype.XSDanyURI)));
Assert.assertFalse(aBox.contains(ind_x, mostSpecificType, ResourceFactory.createTypedLiteral(classB.getURI(), XSDDatatype.XSDanyURI)));
aBox.remove(ind_x, RDF.type, classD); // retract assertion that x is of type D.
// Verify that D is not longer the most specific type
Assert.assertFalse(aBox.contains(ind_x, mostSpecificType, ResourceFactory.createTypedLiteral(classD.getURI(), XSDDatatype.XSDanyURI)));
}
@Test
/*
* Test computation of mostSpecificType annotations in response
* to an added ABox type assertion.
*/
public void mstTest2(){
// Create TBox, ABox and Inference models and register
// the ABox reasoner listeners with the ABox and TBox
// Pellet will compute TBox inferences
OntModel tBox = ModelFactory.createOntologyModel(PelletReasonerFactory.THE_SPEC);
OntModel aBox = ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM);
Model inf = ModelFactory.createDefaultModel();
SimpleReasoner simpleReasoner = new SimpleReasoner(tBox, aBox, inf);
aBox.register(simpleReasoner);
tBox.register(new SimpleReasonerTBoxListener(simpleReasoner));
// Set up the Tbox with a class hierarchy. B is a subclass of A,
// C is a subclass of B, and A is a subclass of C.
// Pellet should infer these three classes to be equivalent.
AnnotationProperty mostSpecificType = tBox.createAnnotationProperty(mostSpecificTypePropertyURI);
OntClass classA = tBox.createClass("http://test.vivo/A");
classA.setLabel("class A", "en-US");
OntClass classB = tBox.createClass("http://test.vivo/B");
classB.setLabel("class B", "en-US");
OntClass classC = tBox.createClass("http://test.vivo/C");
classC.setLabel("class C", "en-US");
classA.addSubClass(classB);
classB.addSubClass(classC);
classC.addSubClass(classA);
// Add the statement individual x is of type B to the ABox
Resource ind_x = aBox.createResource("http://test.vivo/x");
aBox.add(ind_x, RDF.type, classB);
StmtIterator stmtIterator = aBox.listStatements(ind_x, mostSpecificType, (RDFNode)null);
// Verify ind_x mostSpecificType annotation for A, B and C
Assert.assertTrue(aBox.contains(ind_x, mostSpecificType, ResourceFactory.createTypedLiteral(classA.getURI(), XSDDatatype.XSDanyURI)));
Assert.assertTrue(aBox.contains(ind_x, mostSpecificType, ResourceFactory.createTypedLiteral(classB.getURI(), XSDDatatype.XSDanyURI)));
Assert.assertTrue(aBox.contains(ind_x, mostSpecificType, ResourceFactory.createTypedLiteral(classC.getURI(), XSDDatatype.XSDanyURI)));
}
@Test
/*
* Test computation of mostSpecificType annotations in response
* to an added/removed TBox assertions.
*/
public void mstTest3(){
// Create TBox, ABox and Inference models and register
// the ABox reasoner listeners with the ABox and TBox
// Pellet will compute TBox inferences
OntModel tBox = ModelFactory.createOntologyModel(PelletReasonerFactory.THE_SPEC);
OntModel aBox = ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM);
Model inf = ModelFactory.createDefaultModel();
SimpleReasoner simpleReasoner = new SimpleReasoner(tBox, aBox, inf);
aBox.register(simpleReasoner);
tBox.register(new SimpleReasonerTBoxListener(simpleReasoner));
OntClass OWL_THING = tBox.createClass(OWL.Thing.getURI());
AnnotationProperty mostSpecificType = tBox.createAnnotationProperty(mostSpecificTypePropertyURI);
// Set up the Tbox with classes A, B, C, D,
// E, F and G
OntClass classA = tBox.createClass("http://test.vivo/A");
classA.setLabel("class A", "en-US");
OntClass classB = tBox.createClass("http://test.vivo/B");
classB.setLabel("class B", "en-US");
OntClass classC = tBox.createClass("http://test.vivo/C");
classC.setLabel("class C", "en-US");
OntClass classD = tBox.createClass("http://test.vivo/D");
classD.setLabel("class D", "en-US");
OntClass classE = tBox.createClass("http://test.vivo/E");
classE.setLabel("class E", "en-US");
OntClass classF = tBox.createClass("http://test.vivo/F");
classE.setLabel("class F", "en-US");
OntClass classG = tBox.createClass("http://test.vivo/G");
classE.setLabel("class G", "en-US");
// add individuals x, y and z to the aBox
Resource ind_x = aBox.createResource("http://test.vivo/x");
Resource ind_y = aBox.createResource("http://test.vivo/y");
aBox.add(ind_x, RDF.type, OWL_THING);
aBox.add(ind_y, RDF.type, classD);
Assert.assertTrue(aBox.contains(ind_x, mostSpecificType, ResourceFactory.createTypedLiteral(OWL.Thing.getURI(), XSDDatatype.XSDanyURI)));
Assert.assertTrue(aBox.contains(ind_y, mostSpecificType, ResourceFactory.createTypedLiteral(classD.getURI(), XSDDatatype.XSDanyURI)));
aBox.add(ind_x, RDF.type, classC);
aBox.add(ind_y, RDF.type, classF);
Assert.assertFalse(aBox.contains(ind_x, mostSpecificType, ResourceFactory.createTypedLiteral(OWL.Thing.getURI(), XSDDatatype.XSDanyURI)));
Assert.assertTrue(aBox.contains(ind_x, mostSpecificType, ResourceFactory.createTypedLiteral(classC.getURI(), XSDDatatype.XSDanyURI)));
Assert.assertTrue(aBox.contains(ind_y, mostSpecificType, ResourceFactory.createTypedLiteral(classD.getURI(), XSDDatatype.XSDanyURI)));
Assert.assertTrue(aBox.contains(ind_y, mostSpecificType, ResourceFactory.createTypedLiteral(classF.getURI(), XSDDatatype.XSDanyURI)));
// Set up a class hierarchy.
// Pellet will compute TBox inferences.
classA.addSubClass(classB);
classA.addSubClass(classC);
classA.addSubClass(classD);
classC.addSubClass(classE);
classD.addSubClass(classF);
classD.addSubClass(classG);
Assert.assertFalse(aBox.contains(ind_y, mostSpecificType, ResourceFactory.createTypedLiteral(classD.getURI(), XSDDatatype.XSDanyURI)));
Assert.assertTrue(aBox.contains(ind_y, mostSpecificType, ResourceFactory.createTypedLiteral(classF.getURI(), XSDDatatype.XSDanyURI)));
// If F is removed as a subclass of D, then D should once again be a most specific type
// for y.
classD.removeSubClass(classF);
Assert.assertTrue(aBox.contains(ind_y, mostSpecificType, ResourceFactory.createTypedLiteral(classD.getURI(), XSDDatatype.XSDanyURI)));
}
// To help in debugging the unit test
void printModels(OntModel ontModel) {