Examples with QuorumListener com.hazelcast.quorum.QuorumListener used on opensource projects

Example 11 with QuorumListener

use of com.hazelcast.quorum.QuorumListener in project hazelcast by hazelcast.

the class QuorumListenerTest method testQuorumEventsFiredWhenNodeCountBelowThenAboveThreshold.

@Test
public void testQuorumEventsFiredWhenNodeCountBelowThenAboveThreshold() {
    final CountDownLatch belowLatch = new CountDownLatch(1);
    final CountDownLatch aboveLatch = new CountDownLatch(1);
    Config config = new Config();
    QuorumListenerConfig listenerConfig = new QuorumListenerConfig();
    listenerConfig.setImplementation(new QuorumListener() {

        public void onChange(QuorumEvent quorumEvent) {
            if (quorumEvent.isPresent()) {
                aboveLatch.countDown();
            } else {
                belowLatch.countDown();
            }
        }
    });
    String mapName = randomMapName();
    String quorumName = randomString();
    QuorumConfig quorumConfig = new QuorumConfig(quorumName, true, 3);
    quorumConfig.addListenerConfig(listenerConfig);
    config.getMapConfig(mapName).setQuorumName(quorumName);
    config.addQuorumConfig(quorumConfig);
    TestHazelcastInstanceFactory factory = createHazelcastInstanceFactory(3);
    factory.newHazelcastInstance(config);
    factory.newHazelcastInstance(config);
    assertOpenEventually(belowLatch, 15);
    factory.newHazelcastInstance(config);
    assertOpenEventually(aboveLatch);
}