Examples with MessageListener com.hazelcast.core.MessageListener used on opensource projects

Example 11 with MessageListener

use of com.hazelcast.core.MessageListener in project hazelcast by hazelcast.

the class ClientTopicTest method testRemoveListener.

@Test
public void testRemoveListener() {
    ITopic topic = client.getTopic(randomString());
    MessageListener listener = new MessageListener() {

        public void onMessage(Message message) {
        }
    };
    String id = topic.addMessageListener(listener);
    assertTrue(topic.removeMessageListener(id));
}

Example 12 with MessageListener

use of com.hazelcast.core.MessageListener in project hazelcast by hazelcast.

the class TopicTest method removeMessageListener.

@Test
@Repeat(10)
public void removeMessageListener() throws InterruptedException {
    String topicName = "removeMessageListener" + generateRandomString(5);
    try {
        HazelcastInstance instance = createHazelcastInstance();
        ITopic<String> topic = instance.getTopic(topicName);
        final AtomicInteger onMessageCount = new AtomicInteger(0);
        final CountDownLatch onMessageInvoked = new CountDownLatch(1);
        MessageListener<String> messageListener = new MessageListener<String>() {

            public void onMessage(Message<String> msg) {
                onMessageCount.incrementAndGet();
                onMessageInvoked.countDown();
            }
        };
        final String message = "message_" + messageListener.hashCode() + "_";
        final String id = topic.addMessageListener(messageListener);
        topic.publish(message + "1");
        onMessageInvoked.await();
        assertTrue(topic.removeMessageListener(id));
        topic.publish(message + "2");
        assertTrueEventually(new AssertTask() {

            @Override
            public void run() {
                assertEquals(1, onMessageCount.get());
            }
        });
    } finally {
        shutdownNodeFactory();
    }
}

Example 13 with MessageListener

use of com.hazelcast.core.MessageListener in project hazelcast by hazelcast.

the class TopicTest method addTwoListenerAndRemoveOne.

@Test
public void addTwoListenerAndRemoveOne() throws InterruptedException {
    String topicName = "addTwoListenerAndRemoveOne" + generateRandomString(5);
    HazelcastInstance instance = createHazelcastInstance();
    ITopic<String> topic = instance.getTopic(topicName);
    final CountDownLatch latch = new CountDownLatch(3);
    final CountDownLatch cp = new CountDownLatch(2);
    final AtomicInteger atomicInteger = new AtomicInteger();
    final String message = "Hazelcast Rocks!";
    MessageListener<String> messageListener1 = new MessageListener<String>() {

        public void onMessage(Message<String> msg) {
            atomicInteger.incrementAndGet();
            latch.countDown();
            cp.countDown();
        }
    };
    MessageListener<String> messageListener2 = new MessageListener<String>() {

        public void onMessage(Message<String> msg) {
            atomicInteger.incrementAndGet();
            latch.countDown();
            cp.countDown();
        }
    };
    String messageListenerId = topic.addMessageListener(messageListener1);
    topic.addMessageListener(messageListener2);
    topic.publish(message);
    assertOpenEventually(cp);
    topic.removeMessageListener(messageListenerId);
    topic.publish(message);
    assertOpenEventually(latch);
    assertEquals(3, atomicInteger.get());
}

Example 14 with MessageListener

use of com.hazelcast.core.MessageListener in project hazelcast by hazelcast.

the class TopicTest method testConfigListenerRegistration.

@Test
public void testConfigListenerRegistration() throws InterruptedException {
    String topicName = "default";
    Config config = new Config();
    final CountDownLatch latch = new CountDownLatch(1);
    config.getTopicConfig(topicName).addMessageListenerConfig(new ListenerConfig().setImplementation(new MessageListener() {

        public void onMessage(Message message) {
            latch.countDown();
        }
    }));
    HazelcastInstance instance = createHazelcastInstance(config);
    instance.getTopic(topicName).publish(1);
    assertTrue(latch.await(10, TimeUnit.SECONDS));
}