Examples with RepositoryConnection org.openrdf.repository.RepositoryConnection used on opensource projects

Example 61 with RepositoryConnection

use of org.openrdf.repository.RepositoryConnection in project incubator-rya by apache.

the class RdfCloudTripleStoreConnectionTest method testDropGraph.

public void testDropGraph() throws Exception {
    RepositoryConnection conn = repository.getConnection();
    String insert = "PREFIX dc: <http://purl.org/dc/elements/1.1/>\n" + "PREFIX ex: <http://example/addresses#>\n" + "INSERT DATA\n" + "{ GRAPH ex:G1 {\n" + "<http://example/book3> dc:title    \"A new book\" ;\n" + "                         dc:creator  \"A.N.Other\" .\n" + "}\n" + "}";
    Update update = conn.prepareUpdate(QueryLanguage.SPARQL, insert);
    update.execute();
    insert = "PREFIX dc: <http://purl.org/dc/elements/1.1/>\n" + "PREFIX ex: <http://example/addresses#>\n" + "INSERT DATA\n" + "{ GRAPH ex:G2 {\n" + "<http://example/book3> dc:title    \"A new book\" ;\n" + "                         dc:creator  \"A.N.Other\" .\n" + "}\n" + "}";
    update = conn.prepareUpdate(QueryLanguage.SPARQL, insert);
    update.execute();
    String query = "PREFIX dc: <http://purl.org/dc/elements/1.1/>\n" + "select * where { <http://example/book3> ?p ?o. }";
    TupleQuery tupleQuery = conn.prepareTupleQuery(QueryLanguage.SPARQL, query);
    CountTupleHandler tupleHandler = new CountTupleHandler();
    tupleQuery.evaluate(tupleHandler);
    assertEquals(4, tupleHandler.getCount());
    tupleHandler = new CountTupleHandler();
    String drop = "PREFIX ex: <http://example/addresses#>\n" + "DROP GRAPH ex:G2 ";
    update = conn.prepareUpdate(QueryLanguage.SPARQL, drop);
    update.execute();
    tupleQuery.evaluate(tupleHandler);
    assertEquals(2, tupleHandler.getCount());
    tupleHandler = new CountTupleHandler();
    drop = "PREFIX ex: <http://example/addresses#>\n" + "DROP GRAPH ex:G1 ";
    update = conn.prepareUpdate(QueryLanguage.SPARQL, drop);
    update.execute();
    tupleQuery.evaluate(tupleHandler);
    assertEquals(0, tupleHandler.getCount());
    conn.close();
}

Example 62 with RepositoryConnection

use of org.openrdf.repository.RepositoryConnection in project incubator-rya by apache.

the class RdfCloudTripleStoreConnectionTest method testSubPropertyOf.

public void testSubPropertyOf() throws Exception {
    if (internalInferenceEngine == null) {
        // infer not supported;
        return;
    }
    RepositoryConnection conn = repository.getConnection();
    conn.add(new StatementImpl(vf.createURI(litdupsNS, "undergradDegreeFrom"), RDFS.SUBPROPERTYOF, vf.createURI(litdupsNS, "degreeFrom")));
    conn.add(new StatementImpl(vf.createURI(litdupsNS, "gradDegreeFrom"), RDFS.SUBPROPERTYOF, vf.createURI(litdupsNS, "degreeFrom")));
    conn.add(new StatementImpl(vf.createURI(litdupsNS, "degreeFrom"), RDFS.SUBPROPERTYOF, vf.createURI(litdupsNS, "memberOf")));
    conn.add(new StatementImpl(vf.createURI(litdupsNS, "memberOf"), RDFS.SUBPROPERTYOF, vf.createURI(litdupsNS, "associatedWith")));
    conn.add(new StatementImpl(vf.createURI(litdupsNS, "UgradA"), vf.createURI(litdupsNS, "undergradDegreeFrom"), vf.createURI(litdupsNS, "Harvard")));
    conn.add(new StatementImpl(vf.createURI(litdupsNS, "GradB"), vf.createURI(litdupsNS, "gradDegreeFrom"), vf.createURI(litdupsNS, "Yale")));
    conn.add(new StatementImpl(vf.createURI(litdupsNS, "ProfessorC"), vf.createURI(litdupsNS, "memberOf"), vf.createURI(litdupsNS, "Harvard")));
    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:degreeFrom lit:Harvard.}";
    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:memberOf lit:Harvard.}";
    tupleQuery = conn.prepareTupleQuery(QueryLanguage.SPARQL, query);
    tupleHandler = new CountTupleHandler();
    tupleQuery.evaluate(tupleHandler);
    assertEquals(2, tupleHandler.getCount());
    query = "PREFIX rdfs: <" + RDFS.NAMESPACE + ">\n" + "PREFIX rdf: <" + RDF.NAMESPACE + ">\n" + "PREFIX lit: <" + litdupsNS + ">\n" + "select * where {?s lit:associatedWith ?o.}";
    tupleQuery = conn.prepareTupleQuery(QueryLanguage.SPARQL, query);
    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:gradDegreeFrom lit:Yale.}";
    tupleQuery = conn.prepareTupleQuery(QueryLanguage.SPARQL, query);
    tupleHandler = new CountTupleHandler();
    tupleQuery.evaluate(tupleHandler);
    assertEquals(1, tupleHandler.getCount());
    conn.close();
}

Example 63 with RepositoryConnection

use of org.openrdf.repository.RepositoryConnection in project incubator-rya by apache.

the class RdfCloudTripleStoreConnectionTest method testUpdateData.

public void testUpdateData() throws Exception {
    RepositoryConnection conn = repository.getConnection();
    String insert = "PREFIX dc: <http://purl.org/dc/elements/1.1/>\n" + "PREFIX ex: <http://example/addresses#>\n" + "INSERT DATA\n" + "{ GRAPH ex:G1 {\n" + "<http://example/book3> dc:title    \"A new book\" ;\n" + "                         dc:creator  \"A.N.Other\" .\n" + "}\n" + "}";
    Update update = conn.prepareUpdate(QueryLanguage.SPARQL, insert);
    update.execute();
    String query = "PREFIX dc: <http://purl.org/dc/elements/1.1/>\n" + "select * where { <http://example/book3> ?p ?o. }";
    TupleQuery tupleQuery = conn.prepareTupleQuery(QueryLanguage.SPARQL, query);
    CountTupleHandler tupleHandler = new CountTupleHandler();
    tupleQuery.evaluate(tupleHandler);
    assertEquals(2, tupleHandler.getCount());
    String insdel = "PREFIX dc: <http://purl.org/dc/elements/1.1/>\n" + "\n" + "WITH <http://example/addresses#G1>\n" + "DELETE { ?book dc:title ?title }\n" + "INSERT { ?book dc:title \"A newer book\"." + "         ?book dc:add \"Additional Info\" }\n" + "WHERE\n" + "  { ?book dc:creator \"A.N.Other\" ;\n" + "        dc:title ?title .\n" + "  }";
    update = conn.prepareUpdate(QueryLanguage.SPARQL, insdel);
    update.execute();
    query = "PREFIX dc: <http://purl.org/dc/elements/1.1/>\n" + "PREFIX ex: <http://example/addresses#>\n" + "select * where { GRAPH ex:G1 {<http://example/book3> ?p ?o. } }";
    tupleQuery = conn.prepareTupleQuery(QueryLanguage.SPARQL, query);
    tupleHandler = new CountTupleHandler();
    tupleQuery.evaluate(tupleHandler);
    assertEquals(3, tupleHandler.getCount());
    conn.close();
}

Example 64 with RepositoryConnection

use of org.openrdf.repository.RepositoryConnection in project incubator-rya by apache.

the class RdfControllerAccumuloTest method setup.

@Before
public void setup() {
    this.mockMvc = standaloneSetup(controller).build();
    try {
        RepositoryConnection con = repository.getConnection();
        con.add(getClass().getResourceAsStream("/test.nt"), "", RDFFormat.NTRIPLES);
        con.close();
    } catch (Exception e) {
        e.printStackTrace();
        throw new RuntimeException(e);
    }
}

Example 65 with RepositoryConnection

use of org.openrdf.repository.RepositoryConnection in project incubator-rya by apache.

the class ConformanceTest method runTest.

/**
 * Verify that we can infer the correct triples or detect an inconsistency.
 * @param   conf    Specifies working directory, etc.
 * @param   OwlTest   Contains premise/conclusion graphs, will store result
 * @return  Return value of the MapReduce job
 */
int runTest(final Configuration conf, final String[] args, final OwlTest test) throws Exception {
    conf.setInt(MRReasoningUtils.STEP_PROP, 0);
    conf.setInt(MRReasoningUtils.SCHEMA_UPDATE_PROP, 0);
    conf.setBoolean(MRReasoningUtils.DEBUG_FLAG, true);
    conf.setBoolean(MRReasoningUtils.OUTPUT_FLAG, true);
    // Connect to MiniAccumulo and load the test
    final Repository repo = MRReasoningUtils.getRepository(conf);
    repo.initialize();
    final RepositoryConnection conn = repo.getConnection();
    conn.clear();
    conn.add(new StringReader(test.premise), "", RDFFormat.RDFXML);
    conn.close();
    repo.shutDown();
    // Run the reasoner
    final ReasoningDriver reasoner = new ReasoningDriver();
    final int result = ToolRunner.run(conf, reasoner, args);
    test.success = (result == 0);
    // Inconsistency test: successful if determined inconsistent
    if (test.types.contains(TEST_INCONSISTENCY)) {
        test.success = test.success && reasoner.hasInconsistencies();
    }
    // Consistency test: successful if determined consistent
    if (test.types.contains(TEST_CONSISTENCY)) {
        test.success = test.success && !reasoner.hasInconsistencies();
    }
    // Other types: we'll need to look at the inferred triples/schema
    if (test.types.contains(TEST_NONENTAILMENT) || test.types.contains(TEST_ENTAILMENT)) {
        System.out.println("Reading inferred triples...");
        // Read in the inferred triples from HDFS:
        final Schema schema = MRReasoningUtils.loadSchema(conf);
        final FileSystem fs = FileSystem.get(conf);
        final Path configuredPath = MRReasoningUtils.getOutputPath(conf, "final");
        final Path path = PathUtils.cleanHadoopPath(configuredPath, conf);
        final OutputCollector inferred = new OutputCollector();
        final NTriplesParser parser = new NTriplesParser();
        parser.setRDFHandler(inferred);
        if (fs.isDirectory(path)) {
            for (final FileStatus status : fs.listStatus(path)) {
                final String s = status.getPath().getName();
                if (s.startsWith(MRReasoningUtils.INCONSISTENT_OUT) || s.startsWith(MRReasoningUtils.DEBUG_OUT)) {
                    continue;
                }
                final BufferedReader br = new BufferedReader(new InputStreamReader(fs.open(status.getPath()), StandardCharsets.UTF_8));
                parser.parse(br, "");
                br.close();
            }
        }
        MRReasoningUtils.deleteIfExists(conf, "final");
        test.inferred.addAll(inferred.triples);
        // Entailment test: successful if expected triples were inferred
        if (test.types.contains(TEST_ENTAILMENT)) {
            // the schema reasoner
            for (final Statement st : test.expected) {
                final Fact fact = new Fact(st);
                if (!test.inferred.contains(st) && !triviallyTrue(fact.getTriple(), schema) && !schema.containsTriple(fact.getTriple())) {
                    test.error.add(st);
                }
            }
        }
        // Non-entailment test: failure if non-expected triples inferred
        if (test.types.contains(TEST_NONENTAILMENT)) {
            for (final Statement st : test.unexpected) {
                final Fact fact = new Fact(st);
                if (test.inferred.contains(st) || schema.containsTriple(fact.getTriple())) {
                    test.error.add(st);
                }
            }
        }
        test.success = test.success && test.error.isEmpty();
    }
    conf.setBoolean(MRReasoningUtils.DEBUG_FLAG, false);
    MRReasoningUtils.clean(conf);
    return result;
}