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

Example 6 with QueryEvent

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

the class QueryEventWorkGeneratorTest method notifyUpdate_isNotActive.

@Test
public void notifyUpdate_isNotActive() throws Exception {
    // The signal that will kill the notifying thread.
    final AtomicBoolean shutdownSignal = new AtomicBoolean(false);
    // The queue generated work is offered to.
    final BlockingQueue<QueryEvent> queue = new ArrayBlockingQueue<>(1);
    // The listener that will perform the QueryEventWorkGenerator work.
    final CountDownLatch latch = new CountDownLatch(1);
    latch.countDown();
    final QueryEventWorkGenerator generator = new QueryEventWorkGenerator("rya", latch, queue, 50, TimeUnit.MILLISECONDS, shutdownSignal);
    // A thread that will attempt to notify the generator with an update query change.
    final UUID queryId = UUID.randomUUID();
    final StreamsQuery query = new StreamsQuery(queryId, "query", false, false);
    final Thread notifyThread = new Thread(() -> {
        final QueryChange change = QueryChange.update(queryId, false);
        final ChangeLogEntry<QueryChange> entry = new ChangeLogEntry<>(0, change);
        generator.notify(entry, Optional.of(query));
    });
    // Start the thread.
    notifyThread.start();
    try {
        // Show work was added to the queue and the notifying thread died.
        final QueryEvent event = queue.poll(500, TimeUnit.MILLISECONDS);
        final QueryEvent expected = QueryEvent.stopped("rya", queryId);
        assertEquals(expected, event);
    } finally {
        shutdownSignal.set(true);
        notifyThread.join();
    }
}

Example 7 with QueryEvent

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

the class QueryEventWorkGeneratorTest method notifyCreate.

@Test
public void notifyCreate() throws Exception {
    // The signal that will kill the notifying thread.
    final AtomicBoolean shutdownSignal = new AtomicBoolean(false);
    // The queue generated work is offered to.
    final BlockingQueue<QueryEvent> queue = new ArrayBlockingQueue<>(1);
    // The listener that will perform the QueryEventWorkGenerator work.
    final CountDownLatch latch = new CountDownLatch(1);
    latch.countDown();
    final QueryEventWorkGenerator generator = new QueryEventWorkGenerator("rya", latch, queue, 50, TimeUnit.MILLISECONDS, shutdownSignal);
    // A thread that will attempt to notify the generator with a created query.
    final UUID queryId = UUID.randomUUID();
    final StreamsQuery query = new StreamsQuery(queryId, "query", true, false);
    final Thread notifyThread = new Thread(() -> {
        final QueryChange change = QueryChange.create(queryId, query.getSparql(), query.isActive(), query.isInsert());
        final ChangeLogEntry<QueryChange> entry = new ChangeLogEntry<>(0, change);
        generator.notify(entry, Optional.of(query));
    });
    // Start the thread.
    notifyThread.start();
    try {
        // Show work was added to the queue and the notifying thread died.
        final QueryEvent event = queue.poll(500, TimeUnit.MILLISECONDS);
        final QueryEvent expected = QueryEvent.executing("rya", new StreamsQuery(queryId, query.getSparql(), query.isActive(), query.isInsert()));
        assertEquals(expected, event);
    } finally {
        shutdownSignal.set(true);
        notifyThread.join();
    }
}

Example 8 with QueryEvent

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

the class QueryEventWorkGeneratorTest method waitsForSubscriptionWork.

@Test
public void waitsForSubscriptionWork() throws Exception {
    // The signal that will kill the notifying thread.
    final AtomicBoolean shutdownSignal = new AtomicBoolean(false);
    // The queue generated work is offered to.
    final BlockingQueue<QueryEvent> queue = new ArrayBlockingQueue<>(1);
    // The listener that will perform the QueryEventWorkGenerator work.
    final CountDownLatch latch = new CountDownLatch(1);
    final QueryEventWorkGenerator generator = new QueryEventWorkGenerator("rya", latch, queue, 50, TimeUnit.MILLISECONDS, shutdownSignal);
    // A thread that will attempt to notify the generator with a created query.
    final UUID queryId = UUID.randomUUID();
    final StreamsQuery query = new StreamsQuery(queryId, "query", true, false);
    final Thread notifyThread = new Thread(() -> {
        final QueryChange change = QueryChange.create(queryId, query.getSparql(), query.isActive(), query.isInsert());
        final ChangeLogEntry<QueryChange> entry = new ChangeLogEntry<>(0, change);
        generator.notify(entry, Optional.of(query));
    });
    // Start the thread.
    notifyThread.start();
    try {
        // Wait longer than the blocking period and show the thread is still alive and nothing has been added
        // to the work queue.
        Thread.sleep(150);
        assertTrue(notifyThread.isAlive());
        // Count down the latch.
        latch.countDown();
        // Show work was added to the queue and the notifying thread died.
        final QueryEvent event = queue.poll(500, TimeUnit.MILLISECONDS);
        final QueryEvent expected = QueryEvent.executing("rya", new StreamsQuery(queryId, query.getSparql(), query.isActive(), query.isInsert()));
        assertEquals(expected, event);
    } finally {
        shutdownSignal.set(true);
        notifyThread.join();
    }
}

Example 9 with QueryEvent

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

the class LogEventWorkerTest method nofity_logCreated_doesNotExist.

@Test
public void nofity_logCreated_doesNotExist() throws Exception {
    // The signal that will kill the working thread.
    final AtomicBoolean shutdownSignal = new AtomicBoolean(false);
    // The queue used to feed work.
    final BlockingQueue<LogEvent> logEventQueue = new ArrayBlockingQueue<>(10);
    // The queue work is written to.
    final BlockingQueue<QueryEvent> queryEventQueue = new ArrayBlockingQueue<>(10);
    // The Query Change Log that will be watched.
    final QueryChangeLog changeLog = new InMemoryQueryChangeLog();
    // Write a message that indicates a new query should be active.
    final UUID firstQueryId = UUID.randomUUID();
    changeLog.write(QueryChange.create(firstQueryId, "select * where { ?a ?b ?c . }", true, false));
    // Write a message that adds an active query, but then makes it inactive. Because both of these
    // events are written to the log before the worker subscribes to the repository for updates, they
    // must result in a single query stopped event.
    final UUID secondQueryId = UUID.randomUUID();
    changeLog.write(QueryChange.create(secondQueryId, "select * where { ?d ?e ?f . }", true, false));
    changeLog.write(QueryChange.update(secondQueryId, false));
    // Start the worker that will be tested.
    final Thread logEventWorker = new Thread(new LogEventWorker(logEventQueue, queryEventQueue, 50, TimeUnit.MILLISECONDS, shutdownSignal));
    logEventWorker.start();
    try {
        // Write a unit of work that indicates a log was created.
        final LogEvent createLogEvent = LogEvent.create("rya", changeLog);
        logEventQueue.offer(createLogEvent);
        // We must see the following Query Events added to the work queue.
        // Query 1, executing.
        // Query 2, stopped.
        Set<QueryEvent> expectedEvents = new HashSet<>();
        expectedEvents.add(QueryEvent.executing("rya", new StreamsQuery(firstQueryId, "select * where { ?a ?b ?c . }", true, false)));
        expectedEvents.add(QueryEvent.stopped("rya", secondQueryId));
        Set<QueryEvent> queryEvents = new HashSet<>();
        queryEvents.add(queryEventQueue.poll(500, TimeUnit.MILLISECONDS));
        queryEvents.add(queryEventQueue.poll(500, TimeUnit.MILLISECONDS));
        assertEquals(expectedEvents, queryEvents);
        // Write an event to the change log that stops the first query.
        changeLog.write(QueryChange.update(firstQueryId, false));
        // Show it was also reflected in the changes.
        // Query 1, stopped.
        expectedEvents = new HashSet<>();
        expectedEvents.add(QueryEvent.stopped("rya", firstQueryId));
        queryEvents = new HashSet<>();
        queryEvents.add(queryEventQueue.poll(500, TimeUnit.MILLISECONDS));
        assertEquals(expectedEvents, queryEvents);
    } finally {
        shutdownSignal.set(true);
        logEventWorker.join();
    }
}

Example 10 with QueryEvent

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

the class LogEventWorkerTest method notify_logDeleted_exists.

@Test
public void notify_logDeleted_exists() throws Exception {
    // The signal that will kill the working thread.
    final AtomicBoolean shutdownSignal = new AtomicBoolean(false);
    // The queue used to feed work.
    final BlockingQueue<LogEvent> logEventQueue = new ArrayBlockingQueue<>(10);
    // The queue work is written to.
    final BlockingQueue<QueryEvent> queryEventQueue = new ArrayBlockingQueue<>(10);
    // The Query Change Log that will be watched.
    final QueryChangeLog changeLog = new InMemoryQueryChangeLog();
    // Start the worker that will be tested.
    final Thread logEventWorker = new Thread(new LogEventWorker(logEventQueue, queryEventQueue, 50, TimeUnit.MILLISECONDS, shutdownSignal));
    logEventWorker.start();
    try {
        // Write a unit of work that indicates a log was created.
        final LogEvent createLogEvent = LogEvent.create("rya", changeLog);
        logEventQueue.offer(createLogEvent);
        // Write a unit of work that indicates a log was deleted.
        logEventQueue.offer(LogEvent.delete("rya"));
        // Show that a single unit of work was created for deleting everything for "rya".
        assertEquals(QueryEvent.stopALL("rya"), queryEventQueue.poll(500, TimeUnit.MILLISECONDS));
        assertNull(queryEventQueue.poll(500, TimeUnit.MILLISECONDS));
    } finally {
        shutdownSignal.set(true);
        logEventWorker.join();
    }
}