Examples with EventLostListener com.hazelcast.map.listener.EventLostListener used on opensource projects

Example 6 with EventLostListener

use of com.hazelcast.map.listener.EventLostListener in project hazelcast by hazelcast.

the class ClientQueryCacheRecoveryUponEventLossTest method testForceConsistency.

@Test
public void testForceConsistency() {
    String mapName = randomMapName("map");
    String queryCacheName = randomMapName("cache");
    Config config = new Config();
    config.setProperty(PARTITION_COUNT.getName(), "1");
    factory.newHazelcastInstance(config);
    QueryCacheConfig queryCacheConfig = new QueryCacheConfig(queryCacheName);
    queryCacheConfig.setBatchSize(1111);
    queryCacheConfig.setDelaySeconds(3);
    ClientConfig clientConfig = new ClientConfig();
    clientConfig.addQueryCacheConfig(mapName, queryCacheConfig);
    HazelcastInstance client = factory.newHazelcastClient(clientConfig);
    IMap<Integer, Integer> map = client.getMap(mapName);
    // set test sequencer to subscriber
    int count = 30;
    setTestSequencer(map, 9);
    final QueryCache queryCache = map.getQueryCache(queryCacheName, new SqlPredicate("this > 20"), true);
    queryCache.addEntryListener(new EventLostListener() {

        @Override
        public void eventLost(EventLostEvent event) {
            queryCache.tryRecover();
        }
    }, false);
    for (int i = 0; i < count; i++) {
        map.put(i, i);
    }
    assertTrueEventually(new AssertTask() {

        @Override
        public void run() throws Exception {
            assertEquals(9, queryCache.size());
        }
    });
}

Example 7 with EventLostListener

use of com.hazelcast.map.listener.EventLostListener in project hazelcast by hazelcast.

the class ClientQueryCacheEventLostListenerTest method testListenerNotified_onEventLoss.

@Test
public void testListenerNotified_onEventLoss() throws Exception {
    int count = 30;
    String mapName = randomString();
    String queryCacheName = randomString();
    IMap<Integer, Integer> mapNode = node.getMap(mapName);
    HazelcastInstance client = factory.newHazelcastClient();
    IMap<Integer, Integer> mapClient = client.getMap(mapName);
    setTestSequencer(mapClient, 9);
    // expecting one lost event publication per partition.
    final CountDownLatch lostEventCount = new CountDownLatch(1);
    QueryCache queryCache = mapClient.getQueryCache(queryCacheName, Predicates.sql("this > 20"), true);
    queryCache.addEntryListener(new EventLostListener() {

        @Override
        public void eventLost(EventLostEvent event) {
            lostEventCount.countDown();
        }
    }, false);
    for (int i = 0; i < count; i++) {
        mapNode.put(i, i);
    }
    assertOpenEventually(lostEventCount);
}

Example 8 with EventLostListener

use of com.hazelcast.map.listener.EventLostListener in project hazelcast by hazelcast.

the class QueryCacheRecoveryUponEventLossTest method testForceConsistency.

@Test
public void testForceConsistency() {
    TestHazelcastInstanceFactory instanceFactory = createHazelcastInstanceFactory(3);
    final String mapName = randomString();
    String queryCacheName = randomString();
    Config config = new Config();
    config.setProperty(ClusterProperty.PARTITION_COUNT.getName(), "1");
    QueryCacheConfig queryCacheConfig = new QueryCacheConfig(queryCacheName);
    queryCacheConfig.setBatchSize(1111);
    queryCacheConfig.setDelaySeconds(3);
    MapConfig mapConfig = config.getMapConfig(mapName);
    mapConfig.addQueryCacheConfig(queryCacheConfig);
    mapConfig.setBackupCount(0);
    final HazelcastInstance node = instanceFactory.newHazelcastInstance(config);
    HazelcastInstance node2 = instanceFactory.newHazelcastInstance(config);
    setTestSequencer(node, 9);
    setTestSequencer(node2, 9);
    IMap<Integer, Integer> map = getMap(node, mapName);
    node2.getMap(mapName);
    final CountDownLatch waitEventLossNotification = new CountDownLatch(1);
    final QueryCache queryCache = map.getQueryCache(queryCacheName, Predicates.sql("this > 20"), true);
    queryCache.addEntryListener(new EventLostListener() {

        @Override
        public void eventLost(EventLostEvent event) {
            queryCache.tryRecover();
            waitEventLossNotification.countDown();
        }
    }, false);
    int count = 30;
    for (int i = 0; i < count; i++) {
        map.put(i, i);
    }
    assertOpenEventually(waitEventLossNotification);
    assertTrueEventually(new AssertTask() {

        @Override
        public void run() {
            assertEquals(9, queryCache.size());
        }
    });
    // re-put entries and check if broken-sequences holder map will be empty
    for (int i = 0; i < count; i++) {
        map.put(i, i);
    }
    assertTrueEventually(new AssertTask() {

        @Override
        public void run() {
            Map brokenSequences = getBrokenSequences(node, mapName, queryCache);
            assertTrue("After recovery, there should be no broken sequences left", brokenSequences.isEmpty());
        }
    });
}