/*
* 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.client.map.querycache;
import com.hazelcast.client.map.querycache.subscriber.TestClientSubscriberContext;
import com.hazelcast.client.proxy.ClientMapProxy;
import com.hazelcast.client.test.TestHazelcastFactory;
import com.hazelcast.config.Config;
import com.hazelcast.core.HazelcastInstance;
import com.hazelcast.core.IMap;
import com.hazelcast.map.EventLostEvent;
import com.hazelcast.map.QueryCache;
import com.hazelcast.map.impl.querycache.QueryCacheContext;
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.annotation.ParallelTest;
import com.hazelcast.test.annotation.QuickTest;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;
import java.util.concurrent.CountDownLatch;
@RunWith(HazelcastParallelClassRunner.class)
@Category({QuickTest.class, ParallelTest.class})
public class ClientQueryCacheEventLostListenerTest extends HazelcastTestSupport {
private TestHazelcastFactory factory = new TestHazelcastFactory();
private HazelcastInstance node;
@Before
public void setUp() throws Exception {
Config config = new Config();
config.setProperty(GroupProperty.PARTITION_COUNT.getName(), "1");
node = factory.newHazelcastInstance(config);
}
@After
public void tearDown() throws Exception {
factory.shutdownAll();
}
@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, new SqlPredicate("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);
}
private void setTestSequencer(IMap map, int eventCount) {
ClientMapProxy proxy = (ClientMapProxy) map;
QueryCacheContext queryCacheContext = proxy.getQueryCacheContext();
queryCacheContext.setSubscriberContext(new TestClientSubscriberContext(queryCacheContext, eventCount, true));
}
}