/*
* 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.spi.impl.operationexecutor.impl;
import com.hazelcast.test.HazelcastSerialClassRunner;
import com.hazelcast.test.HazelcastTestSupport;
import com.hazelcast.test.TestThread;
import com.hazelcast.test.annotation.NightlyTest;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;
import java.util.Random;
import java.util.concurrent.atomic.AtomicBoolean;
import static org.junit.Assert.assertEquals;
@RunWith(HazelcastSerialClassRunner.class)
@Category(NightlyTest.class)
public class DefaultOperationQueueStressTest extends HazelcastTestSupport {
private static final Object POISON_PILL = new Object();
private final DefaultOperationQueue queue = new DefaultOperationQueue();
private final AtomicBoolean stop = new AtomicBoolean();
@Test
public void testMultipleConsumers() {
int testDurationSeconds = 10;
ProducerThread producer = new ProducerThread();
ConsumerThread consumer1 = new ConsumerThread(1);
ConsumerThread consumer2 = new ConsumerThread(2);
producer.start();
consumer1.start();
consumer2.start();
sleepAndStop(stop, testDurationSeconds);
producer.assertSucceedsEventually();
consumer1.assertSucceedsEventually();
consumer2.assertSucceedsEventually();
long consumed = consumer1.consumed + consumer2.consumed;
assertEquals(producer.produced, consumed);
}
private class ProducerThread extends TestThread {
private volatile long produced;
public ProducerThread() {
super("ProducerThread");
}
@Override
public void doRun() throws Throwable {
Random random = new Random();
while (!stop.get()) {
if (random.nextInt(5) == 0) {
queue.add("foo", true);
} else {
queue.add("foo", false);
}
produced++;
}
for (int k = 0; k < 100; k++) {
queue.add(POISON_PILL, false);
}
}
}
private class ConsumerThread extends TestThread {
volatile long consumed = 0;
private ConsumerThread(int id) {
super("ConsumerThread-" + id);
}
@Override
public void doRun() throws Throwable {
for (; ; ) {
Object item = queue.take(false);
if (item == POISON_PILL) {
break;
}
consumed++;
}
}
}
}