/*
* 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.mapstore.writebehind;
import com.hazelcast.core.IMap;
import com.hazelcast.test.AssertTask;
import com.hazelcast.test.HazelcastSerialClassRunner;
import com.hazelcast.test.HazelcastTestSupport;
import com.hazelcast.test.annotation.QuickTest;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;
import static org.junit.Assert.assertTrue;
@RunWith(HazelcastSerialClassRunner.class)
@Category(QuickTest.class)
public class WriteBehindWriteBatchingTest extends HazelcastTestSupport {
@Test
public void testWriteBatching() throws Exception {
final int writeBatchSize = 8;
final MapStoreWithCounter<Integer, Integer> mapStore = new MapStoreWithCounter<Integer, Integer>();
final IMap<Integer, Integer> map = TestMapUsingMapStoreBuilder.<Integer, Integer>create()
.withMapStore(mapStore)
.withNodeCount(1)
.withNodeFactory(createHazelcastInstanceFactory(1))
.withWriteDelaySeconds(3)
.withPartitionCount(1)
.withWriteBatchSize(writeBatchSize)
.build();
final int numberOfItems = 1024;
populateMap(map, numberOfItems);
assertTrueEventually(new AssertTask() {
@Override
public void run() throws Exception {
// expecting more than half of operations should have the write batch size.
// takes this a lower bound.
final int expectedBatchOpCount = (numberOfItems / writeBatchSize) / 2;
final int numberOfBatchOperationsEqualWriteBatchSize = mapStore.findNumberOfBatchsEqualWriteBatchSize(writeBatchSize);
assertTrue(numberOfBatchOperationsEqualWriteBatchSize >= expectedBatchOpCount);
}
}, 20);
}
private void populateMap(IMap<Integer, Integer> map, int numberOfItems) {
for (int i = 0; i < numberOfItems; i++) {
map.put(i, i);
}
}
}