/*
* 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.query;
import com.hazelcast.config.Config;
import com.hazelcast.core.HazelcastInstance;
import com.hazelcast.core.IMap;
import com.hazelcast.map.QueryResultSizeExceededException;
import com.hazelcast.map.impl.MapService;
import com.hazelcast.query.TruePredicate;
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.SlowTest;
import org.junit.Before;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;
import static com.hazelcast.util.IterationType.ENTRY;
import static org.junit.Assert.assertEquals;
@RunWith(HazelcastParallelClassRunner.class)
@Category({SlowTest.class, ParallelTest.class})
public class MapQueryEngineImpl_queryLocalPartitions_resultSizeLimitTest extends HazelcastTestSupport {
private static final long RESULT_SIZE_LIMIT = QueryResultSizeLimiter.MINIMUM_MAX_RESULT_LIMIT + 4223;
private static final int PARTITION_COUNT = 271;
private IMap<String, String> map;
private MapQueryEngineImpl queryEngine;
private int limit;
@Before
public void setup() {
Config config = new Config();
config.setProperty(GroupProperty.PARTITION_COUNT.getName(), "" + PARTITION_COUNT);
config.setProperty(GroupProperty.QUERY_RESULT_SIZE_LIMIT.getName(), "" + RESULT_SIZE_LIMIT);
HazelcastInstance hz = createHazelcastInstance(config);
map = hz.getMap(randomName());
MapService mapService = getNodeEngineImpl(hz).getService(MapService.SERVICE_NAME);
queryEngine = new MapQueryEngineImpl(mapService.getMapServiceContext());
// we fill all partitions, so we get the NodeResultLimit for all partitions as well
QueryResultSizeLimiter resultSizeLimiter = queryEngine.getQueryResultSizeLimiter();
limit = (int) resultSizeLimiter.getNodeResultLimit(PARTITION_COUNT);
}
@Test
public void checkResultSize_limitNotExceeded() throws Exception {
fillMap(limit - 1);
Query query = Query.of().mapName(map.getName()).predicate(TruePredicate.INSTANCE)
.iterationType(ENTRY).build();
QueryResult result = (QueryResult) queryEngine.execute(query, Target.LOCAL_NODE);
assertEquals(limit - 1, result.size());
}
@Test
public void checkResultSize_limitEquals() throws Exception {
fillMap(limit);
Query query = Query.of().mapName(map.getName()).predicate(TruePredicate.INSTANCE)
.iterationType(ENTRY).build();
QueryResult result = (QueryResult) queryEngine.execute(query, Target.LOCAL_NODE);
assertEquals(limit, result.size());
}
@Test(expected = QueryResultSizeExceededException.class)
public void checkResultSize_limitExceeded() throws Exception {
fillMap(limit + 1);
Query query = Query.of().mapName(map.getName()).predicate(TruePredicate.INSTANCE)
.iterationType(ENTRY).build();
queryEngine.execute(query, Target.LOCAL_NODE);
}
private void fillMap(long count) {
for (long i = 0; i < count; i++) {
map.put(i + randomString(), "");
}
}
}