Examples with QueryExecutor org.apache.rya.streams.querymanager.QueryExecutor used on opensource projects

Example 11 with QueryExecutor

use of org.apache.rya.streams.querymanager.QueryExecutor in project incubator-rya by apache.

the class LocalQueryExecutorTest method startQuery_serviceNotStarted.

@Test(expected = IllegalStateException.class)
public void startQuery_serviceNotStarted() throws Exception {
    final QueryExecutor executor = new LocalQueryExecutor(mock(CreateKafkaTopic.class), mock(KafkaStreamsFactory.class));
    executor.startQuery("rya", new StreamsQuery(UUID.randomUUID(), "query", true, false));
}

Example 12 with QueryExecutor

use of org.apache.rya.streams.querymanager.QueryExecutor in project incubator-rya by apache.

the class LocalQueryExecutorTest method stopQuery.

@Test
public void stopQuery() throws Exception {
    // Test values.
    final String ryaInstance = "rya";
    final StreamsQuery query = new StreamsQuery(UUID.randomUUID(), "SELECT * WHERE { ?a ?b ?c. }", true, false);
    // Mock the streams factory so that we can tell if the stop function is invoked by the executor.
    final KafkaStreamsFactory jobFactory = mock(KafkaStreamsFactory.class);
    final KafkaStreams queryJob = mock(KafkaStreams.class);
    when(jobFactory.make(eq(ryaInstance), eq(query))).thenReturn(queryJob);
    // Start the executor that will be tested.
    final QueryExecutor executor = new LocalQueryExecutor(mock(CreateKafkaTopic.class), jobFactory);
    executor.startAndWait();
    try {
        // Tell the executor to start the query.
        executor.startQuery(ryaInstance, query);
        // Tell the executor to stop the query.
        executor.stopQuery(query.getQueryId());
        // Show a job was stopped for that query's ID.
        verify(queryJob).close();
    } finally {
        executor.stopAndWait();
    }
}

Example 13 with QueryExecutor

use of org.apache.rya.streams.querymanager.QueryExecutor in project incubator-rya by apache.

the class LocalQueryExecutorIT method runQuery.

@Test
public void runQuery() throws Exception {
    // Test values.
    final String ryaInstance = "rya";
    final StreamsQuery sQuery = new StreamsQuery(UUID.randomUUID(), "SELECT * WHERE { ?person <urn:worksAt> ?business . }", true, false);
    // 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"));
    // Start the executor that will be tested.
    final CreateKafkaTopic createKafkaTopic = new CreateKafkaTopic(kafka.getZookeeperServers());
    final String kafkaServers = kafka.getKafkaHostname() + ":" + kafka.getKafkaPort();
    final KafkaStreamsFactory jobFactory = new SingleThreadKafkaStreamsFactory(kafkaServers);
    final QueryExecutor executor = new LocalQueryExecutor(createKafkaTopic, jobFactory);
    executor.startAndWait();
    try {
        // Start the query.
        executor.startQuery(ryaInstance, sQuery);
        // Wait for the program to start.
        Thread.sleep(5000);
        // Write some statements to the program.
        final String statementsTopic = KafkaTopics.statementsTopic(ryaInstance);
        final LoadStatements loadStatements = new KafkaLoadStatements(statementsTopic, stmtProducer);
        loadStatements.fromCollection(statements);
        // Read the output of the streams program.
        final String resultsTopic = KafkaTopics.queryResultsTopic(ryaInstance, sQuery.getQueryId());
        resultConsumer.subscribe(Lists.newArrayList(resultsTopic));
        final List<VisibilityBindingSet> results = KafkaTestUtil.pollForResults(500, 6, 3, resultConsumer);
        assertEquals(expected, results);
    } finally {
        executor.stopAndWait();
    }
}