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

Example 1 with EntryEvictedListener

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

the class ClientEvictionTest method testMaxSizeEvictionWorks.

@Test
public void testMaxSizeEvictionWorks() throws Exception {
    final int maxSize = 1000;
    final int populationCount = 5000;
    String mapName = randomString();
    String cacheName = randomString();
    QueryCacheConfig cacheConfig = new QueryCacheConfig(cacheName);
    cacheConfig.getEvictionConfig().setSize(maxSize).setEvictionPolicy(EvictionPolicy.LFU).setMaximumSizePolicy(EvictionConfig.MaxSizePolicy.ENTRY_COUNT);
    ClientConfig clientConfig = new ClientConfig();
    clientConfig.addQueryCacheConfig(mapName, cacheConfig);
    HazelcastInstance client = factory.newHazelcastClient(clientConfig);
    IMap<Integer, Integer> map = client.getMap(mapName);
    // expecting at least populationCount - maxSize + 10 evicted entries according to max size.
    // 10 states an error margin since eviction does not sweep precise number of entries.
    int margin = 10;
    final CountDownLatch evictedCount = new CountDownLatch(populationCount - maxSize - margin);
    final QueryCache<Integer, Integer> cache = map.getQueryCache(cacheName, TruePredicate.INSTANCE, true);
    String listener = cache.addEntryListener(new EntryEvictedListener() {

        @Override
        public void entryEvicted(EntryEvent event) {
            evictedCount.countDown();
        }
    }, false);
    for (int i = 0; i < populationCount; i++) {
        map.put(i, i);
    }
    assertOpenEventually(evictedCount);
    assertQueryCacheEvicted(maxSize, margin, cache);
    assertTrue(cache.removeEntryListener(listener));
}

Example 2 with EntryEvictedListener

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

the class EvictionTest method testMaxSizeEvictionWorks.

@Test
public void testMaxSizeEvictionWorks() {
    int maxSize = 100;
    int populationCount = 500;
    String mapName = randomString();
    String cacheName = randomString();
    Config config = getConfig(maxSize, mapName, cacheName);
    HazelcastInstance node = createHazelcastInstance(config);
    IMap<Integer, Integer> map = getMap(node, mapName);
    // expecting at least populationCount - maxSize - 50 evicted entries according to max size.
    // 50 states an error margin since eviction does not sweep precise number of entries.
    int margin = 50;
    final CountDownLatch evictedCount = new CountDownLatch(populationCount - maxSize - margin);
    QueryCache<Integer, Integer> cache = map.getQueryCache(cacheName, TruePredicate.INSTANCE, true);
    String listener = cache.addEntryListener(new EntryEvictedListener() {

        @Override
        public void entryEvicted(EntryEvent event) {
            evictedCount.countDown();
        }
    }, false);
    for (int i = 0; i < populationCount; i++) {
        map.put(i, i);
    }
    assertOpenEventually("Cache size is " + cache.size(), evictedCount);
    assertQueryCacheEvicted(maxSize, margin, cache);
    assertTrue(cache.removeEntryListener(listener));
}