Examples with OntClass org.apache.jena.ontology.OntClass used on opensource projects

Example 11 with OntClass

use of org.apache.jena.ontology.OntClass in project incubator-sdap-mudrod by apache.

the class LocalOntology method subclasses.

/**
 * Retrieve all subclasses of entity(ies) hashed to searchTerm
 * @param entitySearchTerm a query (keywords) for which to obtain
 * subclasses.
 * @return an {@link java.util.Iterator} containing the subclass as Strings.
 */
@Override
public Iterator<String> subclasses(String entitySearchTerm) {
    Map<OntResource, String> classMap = retrieve(entitySearchTerm);
    Map<String, String> subclasses = new HashMap<>();
    Iterator<OntResource> iter = classMap.keySet().iterator();
    while (iter.hasNext()) {
        OntResource resource = iter.next();
        if (resource instanceof OntClass) {
            // need to pass the .listSubClasses(true) boolean parameter.
            for (Iterator<?> i = ((OntClass) resource).listSubClasses(); i.hasNext(); ) {
                OntResource subclass = (OntResource) i.next();
                for (Iterator<?> j = subclass.listLabels(null); j.hasNext(); ) {
                    Literal l = (Literal) j.next();
                    subclasses.put(l.toString(), "1");
                }
            }
            // get individuals
            for (Iterator<?> i = ((OntClass) resource).listInstances(); i.hasNext(); ) {
                OntResource subclass = (OntResource) i.next();
                for (Iterator<?> j = subclass.listLabels(null); j.hasNext(); ) {
                    Literal l = (Literal) j.next();
                    subclasses.put(l.toString(), "1");
                }
            }
        } else if (resource instanceof Individual) {
            for (Iterator<?> i = resource.listSameAs(); i.hasNext(); ) {
                OntResource subclass = (OntResource) i.next();
                for (Iterator<?> j = subclass.listLabels(null); j.hasNext(); ) {
                    Literal l = (Literal) j.next();
                    subclasses.put(l.toString(), "1");
                }
            }
        }
    }
    return subclasses.keySet().iterator();
}

Example 12 with OntClass

use of org.apache.jena.ontology.OntClass in project incubator-sdap-mudrod by apache.

the class LocalOntology method renderHierarchy.

protected static void renderHierarchy(PrintStream out, OntClass cls, List<Object> occurs, int depth) {
    renderClassDescription(out, cls, depth);
    out.println();
    // recurse to the next level down
    if (cls.canAs(OntClass.class) && !occurs.contains(cls)) {
        for (Iterator<?> i = cls.listSubClasses(true); i.hasNext(); ) {
            OntClass sub = (OntClass) i.next();
            // we push this expression on the occurs list before we recurse
            occurs.add(cls);
            renderHierarchy(out, sub, occurs, depth + 1);
            occurs.remove(cls);
        }
        for (Iterator<?> i = cls.listInstances(); i.hasNext(); ) {
            Individual individual = (Individual) i.next();
            renderURI(out, individual.getModel(), individual.getURI());
            out.print(" [");
            for (Iterator<?> j = individual.listLabels(null); j.hasNext(); ) {
                out.print(((Literal) j.next()).getString() + ", ");
            }
            out.print("] ");
            out.println();
        }
    }
}

Example 13 with OntClass

use of org.apache.jena.ontology.OntClass in project jena by apache.

the class TestReasoners method testTransitiveCycleBug.

/**
 * Cycle bug in transitive reasoner
 */
public void testTransitiveCycleBug() {
    Model m = FileManager.getInternal().loadModelInternal("file:testing/reasoners/bugs/unbroken.n3");
    OntModel om = ModelFactory.createOntologyModel(OntModelSpec.RDFS_MEM_TRANS_INF, m);
    OntClass rootClass = om.getOntClass(RDFS.Resource.getURI());
    Resource c = m.getResource("c");
    Set<OntClass> direct = rootClass.listSubClasses(true).toSet();
    assertFalse(direct.contains(c));
}

Example 14 with OntClass

use of org.apache.jena.ontology.OntClass in project jena by apache.

the class TestOntTools method testNamedHierarchyRoots3.

/**
 * Test for no dups in the returned list
 */
public void testNamedHierarchyRoots3() {
    OntClass anon0 = m_model.createClass();
    OntClass anon1 = m_model.createClass();
    anon0.addSubClass(m_a);
    anon1.addSubClass(m_a);
    // only a is root
    m_a.addSubClass(m_b);
    m_a.addSubClass(m_c);
    m_a.addSubClass(m_d);
    m_a.addSubClass(m_e);
    m_a.addSubClass(m_f);
    m_a.addSubClass(m_g);
    List<OntClass> nhr = OntTools.namedHierarchyRoots(m_model);
    assertEquals(1, nhr.size());
    assertTrue(nhr.contains(m_a));
}

Example 15 with OntClass

use of org.apache.jena.ontology.OntClass in project jena by apache.

the class TestOntTools method testNamedHierarchyRoots4.

/**
 * Test for indirect route to a non-root node
 */
public void testNamedHierarchyRoots4() {
    OntClass anon0 = m_model.createClass();
    OntClass anon1 = m_model.createClass();
    anon0.addSubClass(m_a);
    anon1.addSubClass(m_b);
    // only a is root, because b is a subclass of a
    // even though b is a sub-class of an anon root
    m_a.addSubClass(m_b);
    m_a.addSubClass(m_c);
    m_a.addSubClass(m_d);
    m_a.addSubClass(m_e);
    m_a.addSubClass(m_f);
    m_a.addSubClass(m_g);
    List<OntClass> nhr = OntTools.namedHierarchyRoots(m_model);
    assertEquals(1, nhr.size());
    assertTrue(nhr.contains(m_a));
}