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

Example 6 with QuorumListener

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

the class CacheQuorumListenerTest 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 cacheName = randomString();
    String quorumName = randomString();
    QuorumConfig quorumConfig = new QuorumConfig(quorumName, true, 3);
    quorumConfig.addListenerConfig(listenerConfig);
    config.getCacheConfig(cacheName).setQuorumName(quorumName);
    config.addQuorumConfig(quorumConfig);
    TestHazelcastInstanceFactory factory = createHazelcastInstanceFactory(3);
    HazelcastInstance instance1 = factory.newHazelcastInstance(config);
    HazelcastServerCachingProvider cachingProvider1 = HazelcastServerCachingProvider.createCachingProvider(instance1);
    Cache<Object, Object> cache = cachingProvider1.getCacheManager().getCache(cacheName);
    try {
        cache.put(generateKeyOwnedBy(instance1), 1);
        fail("Expected a QuorumException");
    } catch (QuorumException expected) {
        EmptyStatement.ignore(expected);
    }
    assertOpenEventually(belowLatch, 15);
    factory.newHazelcastInstance(config);
    factory.newHazelcastInstance(config);
    cache.put(generateKeyOwnedBy(instance1), 1);
    assertOpenEventually(aboveLatch, 15);
}

Example 7 with QuorumListener

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

the class CacheQuorumListenerTest method testDifferentQuorumsGetCorrectEvents.

@Test
public void testDifferentQuorumsGetCorrectEvents() {
    TestHazelcastInstanceFactory factory = createHazelcastInstanceFactory(3);
    final CountDownLatch quorumFailureLatch = new CountDownLatch(2);
    String fourNodeQuorumName = "fourNode";
    QuorumConfig fourNodeQuorumConfig = new QuorumConfig(fourNodeQuorumName, true, 4);
    fourNodeQuorumConfig.addListenerConfig(new QuorumListenerConfig(new QuorumListener() {

        public void onChange(QuorumEvent quorumEvent) {
            if (!quorumEvent.isPresent()) {
                quorumFailureLatch.countDown();
            }
        }
    }));
    String threeNodeQuorumName = "threeNode";
    QuorumConfig threeNodeQuorumConfig = new QuorumConfig(threeNodeQuorumName, true, 3);
    threeNodeQuorumConfig.addListenerConfig(new QuorumListenerConfig(new QuorumListener() {

        public void onChange(QuorumEvent quorumEvent) {
            if (!quorumEvent.isPresent()) {
                quorumFailureLatch.countDown();
            }
        }
    }));
    CacheSimpleConfig fourNodeCacheConfig = new CacheSimpleConfig();
    fourNodeCacheConfig.setName("fourNode");
    fourNodeCacheConfig.setQuorumName(fourNodeQuorumName);
    CacheSimpleConfig threeNodeCacheConfig = new CacheSimpleConfig();
    threeNodeCacheConfig.setName("threeNode");
    threeNodeCacheConfig.setQuorumName(threeNodeQuorumName);
    Config config = new Config();
    config.addCacheConfig(fourNodeCacheConfig);
    config.addQuorumConfig(fourNodeQuorumConfig);
    config.addCacheConfig(threeNodeCacheConfig);
    config.addQuorumConfig(threeNodeQuorumConfig);
    HazelcastInstance h1 = factory.newHazelcastInstance(config);
    factory.newHazelcastInstance(config);
    HazelcastServerCachingProvider cachingProvider = HazelcastServerCachingProvider.createCachingProvider(h1);
    Cache<Object, Object> fourNode = cachingProvider.getCacheManager().getCache("fourNode");
    Cache<Object, Object> threeNode = cachingProvider.getCacheManager().getCache("threeNode");
    try {
        threeNode.put(generateKeyOwnedBy(h1), "bar");
        fail("Expected a QuorumException");
    } catch (QuorumException expected) {
        EmptyStatement.ignore(expected);
    }
    try {
        fourNode.put(generateKeyOwnedBy(h1), "bar");
        fail("Expected a QuorumException");
    } catch (QuorumException expected) {
        EmptyStatement.ignore(expected);
    }
    assertOpenEventually(quorumFailureLatch, 15);
}

Example 8 with QuorumListener

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

the class CacheQuorumListenerTest method testQuorumFailureEventFiredWhenNodeCountBelowThreshold.

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

        public void onChange(QuorumEvent quorumEvent) {
            if (!quorumEvent.isPresent()) {
                countDownLatch.countDown();
            }
        }
    });
    String cacheName = randomString();
    String quorumName = randomString();
    QuorumConfig quorumConfig = new QuorumConfig(quorumName, true, 3);
    quorumConfig.addListenerConfig(listenerConfig);
    config.getCacheConfig(cacheName).setQuorumName(quorumName);
    config.addQuorumConfig(quorumConfig);
    HazelcastInstance instance = createHazelcastInstance(config);
    HazelcastServerCachingProvider cachingProvider = HazelcastServerCachingProvider.createCachingProvider(instance);
    Cache<Object, Object> cache = cachingProvider.getCacheManager().getCache(cacheName);
    try {
        cache.put(generateKeyOwnedBy(instance), 1);
        fail("Expected a QuorumException");
    } catch (QuorumException expected) {
        EmptyStatement.ignore(expected);
    }
    assertOpenEventually(countDownLatch, 15);
}

Example 9 with QuorumListener

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

the class QuorumListenerTest method testQuorumEventProvidesCorrectMemberListSize.

@Test
public void testQuorumEventProvidesCorrectMemberListSize() {
    final CountDownLatch belowLatch = new CountDownLatch(2);
    Config config = new Config();
    QuorumListenerConfig listenerConfig = new QuorumListenerConfig();
    listenerConfig.setImplementation(new QuorumListener() {

        public void onChange(QuorumEvent quorumEvent) {
            if (!quorumEvent.isPresent()) {
                Collection<Member> currentMembers = quorumEvent.getCurrentMembers();
                assertEquals(3, quorumEvent.getThreshold());
                assertTrue(currentMembers.size() < quorumEvent.getThreshold());
                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);
}

Example 10 with QuorumListener

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

the class QuorumListenerTest method testCustomResolverFiresQuorumFailureEvent.

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

        @Override
        public void onChange(QuorumEvent quorumEvent) {
            if (!quorumEvent.isPresent()) {
                countDownLatch.countDown();
            }
        }
    });
    String mapName = randomMapName();
    String quorumName = randomString();
    QuorumConfig quorumConfig = new QuorumConfig();
    quorumConfig.setName(quorumName);
    quorumConfig.setEnabled(true);
    quorumConfig.addListenerConfig(listenerConfig);
    quorumConfig.setQuorumFunctionImplementation(new QuorumFunction() {

        @Override
        public boolean apply(Collection<Member> members) {
            return false;
        }
    });
    config.getMapConfig(mapName).setQuorumName(quorumName);
    config.addQuorumConfig(quorumConfig);
    TestHazelcastInstanceFactory factory = createHazelcastInstanceFactory();
    factory.newHazelcastInstance(config);
    factory.newHazelcastInstance();
    assertOpenEventually(countDownLatch, 15);
}