Examples with MapBindingSet org.openrdf.query.impl.MapBindingSet used on opensource projects

Example 1 with MapBindingSet

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

the class MongoEntityIndexIT method sparqlQuery_Test.

@Test
public void sparqlQuery_Test() throws Exception {
    final Sail sail = RyaSailFactory.getInstance(conf);
    SailRepositoryConnection conn = new SailRepository(sail).getConnection();
    conn.begin();
    try (MongoEntityIndexer indexer = new MongoEntityIndexer()) {
        indexer.setConf(conf);
        indexer.init();
        setupTypes(indexer);
        addStatements(conn);
        final String query = "SELECT * WHERE { " + "<urn:strawberry> <" + RDF.TYPE + "> <urn:icecream> ." + "<urn:strawberry> <urn:brand> ?brand . " + "<urn:strawberry> <urn:flavor> ?flavor . " + "}";
        final TupleQueryResult rez = conn.prepareTupleQuery(QueryLanguage.SPARQL, query).evaluate();
        final Set<BindingSet> results = new HashSet<>();
        while (rez.hasNext()) {
            final BindingSet bs = rez.next();
            results.add(bs);
        }
        final MapBindingSet expected = new MapBindingSet();
        expected.addBinding("flavor", ValueFactoryImpl.getInstance().createLiteral("Strawberry"));
        expected.addBinding("brand", ValueFactoryImpl.getInstance().createLiteral("Awesome Icecream"));
        assertEquals(1, results.size());
        assertEquals(expected, results.iterator().next());
    } finally {
        conn.close();
    }
}

Example 2 with MapBindingSet

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

the class KafkaGetQueryResultStreamIT method fromNow.

@Test
public void fromNow() throws Exception {
    // Create an ID for the query.
    final String ryaInstance = UUID.randomUUID().toString();
    final UUID queryId = UUID.randomUUID();
    try (final Producer<?, VisibilityBindingSet> producer = KafkaTestUtil.makeProducer(kafka, StringSerializer.class, VisibilityBindingSetSerializer.class)) {
        final String resultTopic = KafkaTopics.queryResultsTopic(ryaInstance, queryId);
        // Write a single visibility binding set to the query's result topic. This will not appear in the expected results.
        final ValueFactory vf = new ValueFactoryImpl();
        MapBindingSet bs = new MapBindingSet();
        bs.addBinding("urn:name", vf.createLiteral("Alice"));
        producer.send(new ProducerRecord<>(resultTopic, new VisibilityBindingSet(bs, "a|b|c")));
        producer.flush();
        // Use the interactor that is being tested to read all of the visibility binding sets that appear after this point.
        final GetQueryResultStream<VisibilityBindingSet> interactor = new KafkaGetQueryResultStream<>(kafka.getKafkaHostname(), kafka.getKafkaPort(), VisibilityBindingSetDeserializer.class);
        try (QueryResultStream<VisibilityBindingSet> results = interactor.fromNow(ryaInstance, queryId)) {
            // Read results from the stream.
            List<VisibilityBindingSet> read = new ArrayList<>();
            for (final VisibilityBindingSet visBs : results.poll(500)) {
                read.add(visBs);
            }
            // Show nothing has been read.
            assertTrue(read.isEmpty());
            // Write two more entries to the result topic. These will be seen by the result stream.
            final List<VisibilityBindingSet> original = new ArrayList<>();
            bs = new MapBindingSet();
            bs.addBinding("urn:name", vf.createLiteral("Bob"));
            original.add(new VisibilityBindingSet(bs, "a"));
            bs = new MapBindingSet();
            bs.addBinding("urn:name", vf.createLiteral("Charlie"));
            original.add(new VisibilityBindingSet(bs, "b|c"));
            for (final VisibilityBindingSet visBs : original) {
                producer.send(new ProducerRecord<>(resultTopic, visBs));
            }
            producer.flush();
            // Read the results from the result stream.
            read = pollForResults(500, 3, 2, results);
            // Show the new entries were read.
            assertEquals(original, read);
        }
    }
}

Example 3 with MapBindingSet

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

the class KafkaRunQueryIT method runQuery.

@Test
public void runQuery() throws Exception {
    // Setup some constant that will be used through the test.
    final String ryaInstance = UUID.randomUUID().toString();
    final String statementsTopic = KafkaTopics.statementsTopic(ryaInstance);
    // This query is completely in memory, so it doesn't need to be closed.
    final QueryRepository queries = new InMemoryQueryRepository(new InMemoryQueryChangeLog(), Scheduler.newFixedRateSchedule(0L, 5, TimeUnit.SECONDS));
    // Add the query to the query repository.
    final StreamsQuery sQuery = queries.add("SELECT * WHERE { ?person <urn:worksAt> ?business . }", true, false);
    final UUID queryId = sQuery.getQueryId();
    final String resultsTopic = KafkaTopics.queryResultsTopic(ryaInstance, queryId);
    // The thread that will run the tested interactor.
    final Thread testThread = new Thread() {

        @Override
        public void run() {
            final RunQuery runQuery = new KafkaRunQuery(kafka.getKafkaHostname(), kafka.getKafkaPort(), statementsTopic, resultsTopic, queries, new TopologyFactory());
            try {
                runQuery.run(queryId);
            } catch (final RyaStreamsException e) {
            // Do nothing. Test will still fail because the expected results will be missing.
            }
        }
    };
    // Create the topics.
    kafka.createTopic(statementsTopic);
    kafka.createTopic(resultsTopic);
    // Create the statements that will be loaded.
    final ValueFactory vf = new ValueFactoryImpl();
    final List<VisibilityStatement> statements = new ArrayList<>();
    statements.add(new VisibilityStatement(vf.createStatement(vf.createURI("urn:Alice"), vf.createURI("urn:worksAt"), vf.createURI("urn:BurgerJoint")), "a"));
    statements.add(new VisibilityStatement(vf.createStatement(vf.createURI("urn:Bob"), vf.createURI("urn:worksAt"), vf.createURI("urn:TacoShop")), "a"));
    statements.add(new VisibilityStatement(vf.createStatement(vf.createURI("urn:Charlie"), vf.createURI("urn:worksAt"), vf.createURI("urn:TacoShop")), "a"));
    // Create the expected results.
    final List<VisibilityBindingSet> expected = new ArrayList<>();
    MapBindingSet bs = new MapBindingSet();
    bs.addBinding("person", vf.createURI("urn:Alice"));
    bs.addBinding("business", vf.createURI("urn:BurgerJoint"));
    expected.add(new VisibilityBindingSet(bs, "a"));
    bs = new MapBindingSet();
    bs.addBinding("person", vf.createURI("urn:Bob"));
    bs.addBinding("business", vf.createURI("urn:TacoShop"));
    expected.add(new VisibilityBindingSet(bs, "a"));
    bs = new MapBindingSet();
    bs.addBinding("person", vf.createURI("urn:Charlie"));
    bs.addBinding("business", vf.createURI("urn:TacoShop"));
    expected.add(new VisibilityBindingSet(bs, "a"));
    // Execute the test. This will result in a set of results that were read from the results topic.
    final List<VisibilityBindingSet> results;
    try {
        // Wait for the program to start.
        testThread.start();
        Thread.sleep(2000);
        // Write some statements to the program.
        final LoadStatements loadStatements = new KafkaLoadStatements(statementsTopic, producer);
        loadStatements.fromCollection(statements);
        // Read the output of the streams program.
        consumer.subscribe(Lists.newArrayList(resultsTopic));
        results = KafkaTestUtil.pollForResults(500, 6, 3, consumer);
    } finally {
        // Tear down the test.
        testThread.interrupt();
        testThread.join(3000);
    }
    // Show the read results matched the expected ones.
    assertEquals(expected, results);
}

Example 4 with MapBindingSet

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

the class StatementOutputFormatterTest method missingSubject.

@Test
public void missingSubject() {
    // Create the input binding set.
    final ValueFactory vf = new ValueFactoryImpl();
    final MapBindingSet bindingSet = new MapBindingSet();
    bindingSet.addBinding("predicate", vf.createURI("urn:age"));
    bindingSet.addBinding("object", vf.createLiteral(34));
    final VisibilityBindingSet visBs = new VisibilityBindingSet(bindingSet, "a");
    // Mock the processor context that will be invoked.
    final ProcessorContext context = mock(ProcessorContext.class);
    // Run the test.
    final StatementOutputFormatter formatter = new StatementOutputFormatter();
    formatter.init(context);
    formatter.process("key", ProcessorResult.make(new UnaryResult(visBs)));
    // Verify the mock was never invoked.
    verify(context, times(0)).forward(any(), any());
}

Example 5 with MapBindingSet

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

the class StatementOutputFormatterTest method subjectWrongType.

@Test
public void subjectWrongType() {
    // Create the input binding set.
    final ValueFactory vf = new ValueFactoryImpl();
    final MapBindingSet bindingSet = new MapBindingSet();
    bindingSet.addBinding("subject", vf.createLiteral("Alice"));
    bindingSet.addBinding("predicate", vf.createURI("urn:age"));
    bindingSet.addBinding("object", vf.createLiteral(34));
    final VisibilityBindingSet visBs = new VisibilityBindingSet(bindingSet, "a");
    // Mock the processor context that will be invoked.
    final ProcessorContext context = mock(ProcessorContext.class);
    // Run the test.
    final StatementOutputFormatter formatter = new StatementOutputFormatter();
    formatter.init(context);
    formatter.process("key", ProcessorResult.make(new UnaryResult(visBs)));
    // Verify the mock was never invoked.
    verify(context, times(0)).forward(any(), any());
}