Examples with AtomicBoolean java.util.concurrent.atomic.AtomicBoolean used on opensource projects

Example 96 with AtomicBoolean

use of java.util.concurrent.atomic.AtomicBoolean in project storm by apache.

the class InprocMessaging method waitForReader.

public static void waitForReader(int port) {
    AtomicBoolean ab = getHasReader(port);
    long start = Time.currentTimeMillis();
    while (!ab.get()) {
        if (Time.isSimulating()) {
            Time.advanceTime(100);
        }
        try {
            Thread.sleep(10);
        } catch (InterruptedException e) {
        //Ignored
        }
        if (Time.currentTimeMillis() - start > 20000) {
            LOG.error("DONE WAITING FOR READER AFTER {} ms", Time.currentTimeMillis() - start);
            break;
        }
    }
}

Example 97 with AtomicBoolean

use of java.util.concurrent.atomic.AtomicBoolean in project storm by apache.

the class DisruptorQueueBackpressureTest method testBackPressureCallback.

@Test
public void testBackPressureCallback() throws Exception {
    final DisruptorQueue queue = createQueue("testBackPressure", CAPACITY);
    queue.setEnableBackpressure(true);
    queue.setHighWaterMark(HIGH_WATERMARK);
    queue.setLowWaterMark(LOW_WATERMARK);
    final AtomicBoolean throttleOn = new AtomicBoolean(false);
    // we need to record the cursor because the DisruptorQueue does not update the readPos during batch consuming
    final AtomicLong consumerCursor = new AtomicLong(-1);
    DisruptorBackpressureCallbackImpl cb = new DisruptorBackpressureCallbackImpl(queue, throttleOn, consumerCursor);
    queue.registerBackpressureCallback(cb);
    for (int i = 0; i < MESSAGES; i++) {
        queue.publish(String.valueOf(i));
    }
    queue.consumeBatchWhenAvailable(new EventHandler<Object>() {

        @Override
        public void onEvent(Object o, long l, boolean b) throws Exception {
            consumerCursor.set(l);
        }
    });
    Assert.assertEquals("Check the calling time of throttle on. ", queue.getHighWaterMark(), cb.highWaterMarkCalledPopulation);
    Assert.assertEquals("Checking the calling time of throttle off. ", queue.getLowWaterMark(), cb.lowWaterMarkCalledPopulation);
}

Example 98 with AtomicBoolean

use of java.util.concurrent.atomic.AtomicBoolean in project storm by apache.

the class DisruptorQueueTest method testInOrder.

@Test
public void testInOrder() throws InterruptedException {
    final AtomicBoolean allInOrder = new AtomicBoolean(true);
    DisruptorQueue queue = createQueue("consumerHang", 1024);
    Runnable producer = new IncProducer(queue, 1024 * 1024);
    Runnable consumer = new Consumer(queue, new EventHandler<Object>() {

        long _expected = 0;

        @Override
        public void onEvent(Object obj, long sequence, boolean endOfBatch) throws Exception {
            if (_expected != ((Number) obj).longValue()) {
                allInOrder.set(false);
                System.out.println("Expected " + _expected + " but got " + obj);
            }
            _expected++;
        }
    });
    run(producer, consumer, queue, 1000, 1);
    Assert.assertTrue("Messages delivered out of order", allInOrder.get());
}

Example 99 with AtomicBoolean

use of java.util.concurrent.atomic.AtomicBoolean in project tomcat by apache.

the class AsyncContextImpl method isStarted.

public boolean isStarted() {
    AtomicBoolean result = new AtomicBoolean(false);
    request.getCoyoteRequest().action(ActionCode.ASYNC_IS_STARTED, result);
    return result.get();
}

Example 100 with AtomicBoolean

use of java.util.concurrent.atomic.AtomicBoolean in project tomcat by apache.

the class Request method getPushBuilder.

// --------------------------------------------- HttpServletRequest Methods
/**
     * {@inheritDoc}
     *
     * @since Servlet 4.0
     */
@Override
public PushBuilder getPushBuilder() {
    AtomicBoolean result = new AtomicBoolean();
    coyoteRequest.action(ActionCode.IS_PUSH_SUPPORTED, result);
    if (result.get()) {
        return new ApplicationPushBuilder(this);
    } else {
        return null;
    }
}