Examples with Graph org.apache.jena.graph.Graph used on opensource projects

Example 31 with Graph

use of org.apache.jena.graph.Graph in project jena by apache.

the class TestReasoners method testTransitiveRemove.

/**
     * Test delete operation for Transtive reasoner.
     */
public void testTransitiveRemove() {
    Graph data = Factory.createGraphMem();
    Node a = NodeFactory.createURI("a");
    Node b = NodeFactory.createURI("b");
    Node c = NodeFactory.createURI("c");
    Node d = NodeFactory.createURI("d");
    Node e = NodeFactory.createURI("e");
    Node closedP = RDFS.subClassOf.asNode();
    data.add(new Triple(a, RDFS.subClassOf.asNode(), b));
    data.add(new Triple(a, RDFS.subClassOf.asNode(), c));
    data.add(new Triple(b, RDFS.subClassOf.asNode(), d));
    data.add(new Triple(c, RDFS.subClassOf.asNode(), d));
    data.add(new Triple(d, RDFS.subClassOf.asNode(), e));
    Reasoner reasoner = TransitiveReasonerFactory.theInstance().create(null);
    InfGraph infgraph = reasoner.bind(data);
    TestUtil.assertIteratorValues(this, infgraph.find(a, RDFS.subClassOf.asNode(), null), new Object[] { new Triple(a, closedP, a), new Triple(a, closedP, b), new Triple(a, closedP, b), new Triple(a, closedP, c), new Triple(a, closedP, d), new Triple(a, closedP, e) });
    TestUtil.assertIteratorValues(this, infgraph.find(b, RDFS.subClassOf.asNode(), null), new Object[] { new Triple(b, closedP, b), new Triple(b, closedP, d), new Triple(b, closedP, e) });
    infgraph.delete(new Triple(b, closedP, d));
    TestUtil.assertIteratorValues(this, infgraph.find(a, RDFS.subClassOf.asNode(), null), new Object[] { new Triple(a, closedP, a), new Triple(a, closedP, b), new Triple(a, closedP, b), new Triple(a, closedP, c), new Triple(a, closedP, d), new Triple(a, closedP, e) });
    TestUtil.assertIteratorValues(this, infgraph.find(b, RDFS.subClassOf.asNode(), null), new Object[] { new Triple(b, closedP, b) });
    infgraph.delete(new Triple(a, closedP, c));
    TestUtil.assertIteratorValues(this, infgraph.find(a, RDFS.subClassOf.asNode(), null), new Object[] { new Triple(a, closedP, a), new Triple(a, closedP, b) });
    TestUtil.assertIteratorValues(this, infgraph.find(b, RDFS.subClassOf.asNode(), null), new Object[] { new Triple(b, closedP, b) });
    TestUtil.assertIteratorValues(this, data.find(null, RDFS.subClassOf.asNode(), null), new Object[] { new Triple(a, closedP, b), new Triple(c, closedP, d), new Triple(d, closedP, e) });
}

Example 32 with Graph

use of org.apache.jena.graph.Graph in project jena by apache.

the class TestReasoners method doTestMetaLevel.

/**
     * Test metalevel add/remove subproperty operations for a reasoner.
     */
public void doTestMetaLevel(ReasonerFactory rf) {
    Graph data = Factory.createGraphMem();
    Node c1 = NodeFactory.createURI("C1");
    Node c2 = NodeFactory.createURI("C2");
    Node c3 = NodeFactory.createURI("C3");
    Node p = NodeFactory.createURI("p");
    Node q = NodeFactory.createURI("q");
    Node sC = RDFS.subClassOf.asNode();
    Node sP = RDFS.subPropertyOf.asNode();
    data.add(new Triple(c2, sC, c3));
    data.add(new Triple(c1, p, c2));
    Reasoner reasoner = rf.create(null);
    InfGraph infgraph = reasoner.bind(data);
    TestUtil.assertIteratorValues(this, infgraph.find(c1, sC, null), new Object[] {});
    infgraph.add(new Triple(p, q, sC));
    TestUtil.assertIteratorValues(this, infgraph.find(c1, sC, null), new Object[] {});
    infgraph.add(new Triple(q, sP, sP));
    TestUtil.assertIteratorValues(this, infgraph.find(c1, sC, null), new Object[] { new Triple(c1, sC, c1), new Triple(c1, sC, c2), new Triple(c1, sC, c3) });
    infgraph.delete(new Triple(p, q, sC));
    TestUtil.assertIteratorValues(this, infgraph.find(c1, sC, null), new Object[] {});
}

Example 33 with Graph

use of org.apache.jena.graph.Graph in project jena by apache.

the class ReasonerTester method runTest.

/**
     * Run a single designated test.
     * @param uri the uri of the test, as defined in the manifest file
     * @param reasoner the reasoner to be tested
     * @param testcase the JUnit test case which is requesting this test
     * @return true if the test passes
     * @throws IOException if one of the test files can't be found
     * @throws JenaException if the test can't be found or fails internally
     */
public boolean runTest(String uri, Reasoner reasoner, TestCase testcase) throws IOException {
    // Find the specification for the named test
    Resource test = testManifest.getResource(uri);
    if (!test.hasProperty(RDF.type, testClass)) {
        throw new JenaException("Can't find test: " + uri);
    }
    String description = test.getRequiredProperty(descriptionP).getObject().toString();
    logger.debug("Reasoner test " + test.getURI() + " - " + description);
    // Construct the inferred graph
    Graph tbox = loadTestFile(test, tboxP);
    Graph data = loadTestFile(test, dataP);
    InfGraph graph = reasoner.bindSchema(tbox).bind(data);
    // Run each query triple and accumulate the results
    Graph queryG = loadTestFile(test, queryP);
    Graph resultG = Factory.createGraphMem();
    Iterator<Triple> queries = queryG.find(null, null, null);
    while (queries.hasNext()) {
        TriplePattern query = tripleToPattern(queries.next());
        logger.debug("Query: " + query);
        Iterator<Triple> answers = graph.find(query.asTripleMatch());
        while (answers.hasNext()) {
            Triple ans = answers.next();
            logger.debug("ans: " + TriplePattern.simplePrintString(ans));
            resultG.add(ans);
        }
    }
    // Check the total result set against the correct answer
    Graph correctG = loadTestFile(test, resultP);
    boolean correct = correctG.isIsomorphicWith(resultG);
    // ... end of debugging hack
    if (testcase != null) {
        Assert.assertTrue(description, correct);
    }
    return correct;
}

Example 34 with Graph

use of org.apache.jena.graph.Graph in project jena by apache.

the class SDBModelAssembler method open.

@Override
public Model open(Assembler a, Resource root, Mode mode) {
    // Make a model.
    // [] rdf:type sdb:Model ;
    //    sdb:dataset <dataset> ;
    //    sdb:graphName <someURI> .
    // A model (graph) is a (dataset, name) pair where the name can be absent
    // meaning the default graph of the dataset.
    Resource dataset = GraphUtils.getResourceValue(root, AssemblerVocab.pDataset);
    if (dataset == null)
        throw new MissingException(root, "No dataset for model or graph");
    StoreDesc storeDesc = datasetAssem.openStore(a, dataset, mode);
    // Attempt to find a graph name - may be absent.
    // Two names : "namedGraph" and "graphName"
    String x = GraphUtils.getAsStringValue(root, AssemblerVocab.pNamedGraph1);
    if (x == null)
        x = GraphUtils.getAsStringValue(root, AssemblerVocab.pNamedGraph2);
    // No name - default model.
    Graph g = null;
    if (x == null)
        return SDBFactory.connectDefaultModel(storeDesc);
    else
        return SDBFactory.connectNamedModel(storeDesc, x);
}

Example 35 with Graph

use of org.apache.jena.graph.Graph in project jena by apache.

the class ListBase method listUnboundSubject.

private QueryIterator listUnboundSubject(Binding binding, Var listVar, Node predicate, PropFuncArg argObject, ExecutionContext execCxt) {
    // Object?
    if (argObject.isList()) {
        List<Node> objectArgs = argObject.getArgList();
        return execObjectList(binding, listVar, predicate, objectArgs, execCxt);
    }
    Node obj = argObject.getArg();
    if (Var.isVar(obj)) {
        Graph graph = execCxt.getActiveGraph();
        Set<Node> x = GraphList.findAllLists(graph);
        return allLists(binding, x, listVar, obj, argObject, execCxt);
    }
    // Subject unbound.  Object a bound node.
    return execObjectBound(binding, listVar, predicate, obj, execCxt);
}