Examples with TupleQuery org.openrdf.query.TupleQuery used on opensource projects

Example 66 with TupleQuery

use of org.openrdf.query.TupleQuery in project incubator-rya by apache.

the class RdfCloudTripleStoreConnectionTest method testSymmPropOf.

public void testSymmPropOf() throws Exception {
    if (internalInferenceEngine == null) {
        // infer not supported;
        return;
    }
    RepositoryConnection conn = repository.getConnection();
    conn.add(new StatementImpl(vf.createURI(litdupsNS, "friendOf"), RDF.TYPE, OWL.SYMMETRICPROPERTY));
    conn.add(new StatementImpl(vf.createURI(litdupsNS, "Bob"), vf.createURI(litdupsNS, "friendOf"), vf.createURI(litdupsNS, "Jeff")));
    conn.add(new StatementImpl(vf.createURI(litdupsNS, "James"), vf.createURI(litdupsNS, "friendOf"), vf.createURI(litdupsNS, "Jeff")));
    conn.commit();
    conn.close();
    internalInferenceEngine.refreshGraph();
    conn = repository.getConnection();
    String query = "PREFIX rdfs: <" + RDFS.NAMESPACE + ">\n" + "PREFIX rdf: <" + RDF.NAMESPACE + ">\n" + "PREFIX lit: <" + litdupsNS + ">\n" + "select * where {?s lit:friendOf lit:Bob.}";
    TupleQuery tupleQuery = conn.prepareTupleQuery(QueryLanguage.SPARQL, query);
    CountTupleHandler tupleHandler = new CountTupleHandler();
    tupleQuery.evaluate(tupleHandler);
    assertEquals(1, tupleHandler.getCount());
    query = "PREFIX rdfs: <" + RDFS.NAMESPACE + ">\n" + "PREFIX rdf: <" + RDF.NAMESPACE + ">\n" + "PREFIX lit: <" + litdupsNS + ">\n" + "select * where {?s lit:friendOf lit:James.}";
    tupleQuery = conn.prepareTupleQuery(QueryLanguage.SPARQL, query);
    tupleHandler = new CountTupleHandler();
    tupleQuery.evaluate(tupleHandler);
    assertEquals(1, tupleHandler.getCount());
    query = "PREFIX rdfs: <" + RDFS.NAMESPACE + ">\n" + "PREFIX rdf: <" + RDF.NAMESPACE + ">\n" + "PREFIX lit: <" + litdupsNS + ">\n" + "select * where {?s lit:friendOf lit:Jeff.}";
    tupleQuery = conn.prepareTupleQuery(QueryLanguage.SPARQL, query);
    tupleHandler = new CountTupleHandler();
    tupleQuery.evaluate(tupleHandler);
    assertEquals(2, tupleHandler.getCount());
    conn.close();
}

Example 67 with TupleQuery

use of org.openrdf.query.TupleQuery in project incubator-rya by apache.

the class RdfCloudTripleStoreConnectionTest method testEvaluate.

// public void testAddAuth() throws Exception {
// RepositoryConnection conn = repository.getConnection();
// URI cpu = vf.createURI(litdupsNS, "cpu");
// URI loadPerc = vf.createURI(litdupsNS, "loadPerc");
// URI uri1 = vf.createURI(litdupsNS, "uri1");
// URI uri2 = vf.createURI(litdupsNS, "uri2");
// URI uri3 = vf.createURI(litdupsNS, "uri3");
// URI auth1 = vf.createURI(RdfCloudTripleStoreConstants.AUTH_NAMESPACE, "1");
// URI auth2 = vf.createURI(RdfCloudTripleStoreConstants.AUTH_NAMESPACE, "2");
// URI auth3 = vf.createURI(RdfCloudTripleStoreConstants.AUTH_NAMESPACE, "3");
// conn.add(cpu, loadPerc, uri1, auth1, auth2, auth3);
// conn.add(cpu, loadPerc, uri2, auth2, auth3);
// conn.add(cpu, loadPerc, uri3, auth3);
// conn.commit();
// 
// //query with no auth
// RepositoryResult<Statement> result = conn.getStatements(cpu, loadPerc, null, true);
// int count = 0;
// while (result.hasNext()) {
// count++;
// result.next();
// }
// assertEquals(0, count);
// result.close();
// 
// String query = "select * where {" +
// "<" + cpu.toString() + "> ?p ?o1." +
// "}";
// TupleQuery tupleQuery = conn.prepareTupleQuery(QueryLanguage.SPARQL, query);
// tupleQuery.setBinding(RdfCloudTripleStoreConfiguration.CONF_QUERY_AUTH, vf.createLiteral("2"));
// CountTupleHandler cth = new CountTupleHandler();
// tupleQuery.evaluate(cth);
// assertEquals(2, cth.getCount());
// 
// conn.close();
// }
public void testEvaluate() throws Exception {
    RepositoryConnection conn = repository.getConnection();
    URI loadPerc = vf.createURI(litdupsNS, "loadPerc");
    URI uri1 = vf.createURI(litdupsNS, "uri1");
    conn.add(cpu, loadPerc, uri1);
    conn.commit();
    String query = "select * where {" + "?x <" + loadPerc.stringValue() + "> ?o1." + "}";
    TupleQuery tupleQuery = conn.prepareTupleQuery(QueryLanguage.SPARQL, query);
    CountTupleHandler cth = new CountTupleHandler();
    tupleQuery.evaluate(cth);
    assertEquals(cth.getCount(), 1);
    conn.close();
}

Example 68 with TupleQuery

use of org.openrdf.query.TupleQuery in project incubator-rya by apache.

the class RdfCloudTripleStoreConnectionTest method testOSPObjRange.

public void testOSPObjRange() throws Exception {
    RepositoryConnection conn = repository.getConnection();
    URI loadPerc = vf.createURI(litdupsNS, "loadPerc");
    Literal six = vf.createLiteral("6");
    Literal sev = vf.createLiteral("7");
    Literal ten = vf.createLiteral("10");
    conn.add(cpu, loadPerc, six);
    conn.add(cpu, loadPerc, sev);
    conn.add(cpu, loadPerc, ten);
    conn.commit();
    String query = "PREFIX org.apache: <" + NAMESPACE + ">\n" + "select * where {" + "?s ?p ?o.\n" + "FILTER(org.apache:range(?o, '6', '8'))." + "}";
    TupleQuery tupleQuery = conn.prepareTupleQuery(QueryLanguage.SPARQL, query);
    CountTupleHandler cth = new CountTupleHandler();
    tupleQuery.evaluate(cth);
    conn.close();
    assertEquals(cth.getCount(), 2);
}

Example 69 with TupleQuery

use of org.openrdf.query.TupleQuery in project incubator-rya by apache.

the class RdfCloudTripleStoreConnectionTest method testInverseOf.

public void testInverseOf() throws Exception {
    if (internalInferenceEngine == null) {
        // infer not supported;
        return;
    }
    RepositoryConnection conn = repository.getConnection();
    conn.add(new StatementImpl(vf.createURI(litdupsNS, "degreeFrom"), OWL.INVERSEOF, vf.createURI(litdupsNS, "hasAlumnus")));
    conn.add(new StatementImpl(vf.createURI(litdupsNS, "UgradA"), vf.createURI(litdupsNS, "degreeFrom"), vf.createURI(litdupsNS, "Harvard")));
    conn.add(new StatementImpl(vf.createURI(litdupsNS, "GradB"), vf.createURI(litdupsNS, "degreeFrom"), vf.createURI(litdupsNS, "Harvard")));
    conn.add(new StatementImpl(vf.createURI(litdupsNS, "Harvard"), vf.createURI(litdupsNS, "hasAlumnus"), vf.createURI(litdupsNS, "AlumC")));
    conn.commit();
    conn.close();
    internalInferenceEngine.refreshGraph();
    conn = repository.getConnection();
    String query = "PREFIX rdfs: <" + RDFS.NAMESPACE + ">\n" + "PREFIX rdf: <" + RDF.NAMESPACE + ">\n" + "PREFIX lit: <" + litdupsNS + ">\n" + "select * where {lit:Harvard lit:hasAlumnus ?s.}";
    TupleQuery tupleQuery = conn.prepareTupleQuery(QueryLanguage.SPARQL, query);
    CountTupleHandler tupleHandler = new CountTupleHandler();
    tupleQuery.evaluate(tupleHandler);
    assertEquals(3, tupleHandler.getCount());
    query = "PREFIX rdfs: <" + RDFS.NAMESPACE + ">\n" + "PREFIX rdf: <" + RDF.NAMESPACE + ">\n" + "PREFIX lit: <" + litdupsNS + ">\n" + "select * where {?s lit:degreeFrom lit:Harvard.}";
    tupleQuery = conn.prepareTupleQuery(QueryLanguage.SPARQL, query);
    tupleHandler = new CountTupleHandler();
    tupleQuery.evaluate(tupleHandler);
    assertEquals(3, tupleHandler.getCount());
    conn.close();
}

Example 70 with TupleQuery

use of org.openrdf.query.TupleQuery in project incubator-rya by apache.

the class RdfCloudTripleStoreConnectionTest method testSPOObjRange.

public void testSPOObjRange() throws Exception {
    RepositoryConnection conn = repository.getConnection();
    URI loadPerc = vf.createURI(litdupsNS, "loadPerc");
    Literal six = vf.createLiteral("6");
    Literal sev = vf.createLiteral("7");
    Literal ten = vf.createLiteral("10");
    conn.add(cpu, loadPerc, six);
    conn.add(cpu, loadPerc, sev);
    conn.add(cpu, loadPerc, ten);
    conn.commit();
    String query = "PREFIX org.apache: <" + NAMESPACE + ">\n" + "select * where {" + "<" + cpu.stringValue() + "> <" + loadPerc.stringValue() + "> ?o.\n" + "FILTER(org.apache:range(?o, '6', '8'))." + "}";
    TupleQuery tupleQuery = conn.prepareTupleQuery(QueryLanguage.SPARQL, query);
    CountTupleHandler cth = new CountTupleHandler();
    tupleQuery.evaluate(cth);
    conn.close();
    assertEquals(cth.getCount(), 2);
}