/*
* Copyright (c) 2008-2017, Hazelcast, Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.hazelcast.map.impl.querycache;
import com.hazelcast.config.Config;
import com.hazelcast.config.MapConfig;
import com.hazelcast.config.QueryCacheConfig;
import com.hazelcast.core.HazelcastInstance;
import com.hazelcast.core.IMap;
import com.hazelcast.instance.Node;
import com.hazelcast.map.EventLostEvent;
import com.hazelcast.map.QueryCache;
import com.hazelcast.map.impl.MapService;
import com.hazelcast.map.impl.MapServiceContext;
import com.hazelcast.map.impl.querycache.subscriber.TestSubscriberContext;
import com.hazelcast.map.listener.EventLostListener;
import com.hazelcast.query.SqlPredicate;
import com.hazelcast.spi.properties.GroupProperty;
import com.hazelcast.test.HazelcastParallelClassRunner;
import com.hazelcast.test.HazelcastTestSupport;
import com.hazelcast.test.TestHazelcastInstanceFactory;
import com.hazelcast.test.annotation.ParallelTest;
import com.hazelcast.test.annotation.QuickTest;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;
import java.util.concurrent.CountDownLatch;
import static com.hazelcast.map.impl.querycache.AbstractQueryCacheTestSupport.getMap;
@RunWith(HazelcastParallelClassRunner.class)
@Category({QuickTest.class, ParallelTest.class})
public class QueryCacheEventLostListenerTest extends HazelcastTestSupport {
@Test
public void testListenerNotified_uponEventLoss() {
String mapName = randomString();
String queryCacheName = randomString();
TestHazelcastInstanceFactory instanceFactory = createHazelcastInstanceFactory(3);
Config config = new Config();
config.setProperty(GroupProperty.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);
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);
// set test sequencer to all nodes
int count = 30;
// expecting one lost event per partition
final CountDownLatch lossCount = new CountDownLatch(1);
final QueryCache queryCache = map.getQueryCache(queryCacheName, new SqlPredicate("this > 20"), true);
queryCache.addEntryListener(new EventLostListener() {
@Override
public void eventLost(EventLostEvent event) {
lossCount.countDown();
}
}, false);
for (int i = 0; i < count; i++) {
map.put(i, i);
}
assertOpenEventually(lossCount);
}
private void setTestSequencer(HazelcastInstance instance, int eventCount) {
Node node = getNode(instance);
MapService service = node.getNodeEngine().getService(MapService.SERVICE_NAME);
MapServiceContext mapServiceContext = service.getMapServiceContext();
QueryCacheContext queryCacheContext = mapServiceContext.getQueryCacheContext();
queryCacheContext.setSubscriberContext(new TestSubscriberContext(queryCacheContext, eventCount, true));
}
}