/*
* 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.test.mocknetwork;
import com.hazelcast.config.Config;
import com.hazelcast.core.HazelcastInstance;
import com.hazelcast.nio.Address;
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.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.concurrent.CountDownLatch;
import static org.junit.Assert.assertEquals;
@RunWith(HazelcastParallelClassRunner.class)
@Category({QuickTest.class, ParallelTest.class})
public class MockJoinerTest extends HazelcastTestSupport {
private int nodeCount = 5;
@Test
public void serialJoin() {
TestHazelcastInstanceFactory factory = createHazelcastInstanceFactory();
HazelcastInstance[] instances = new HazelcastInstance[nodeCount];
for (int i = 0; i < nodeCount; i++) {
instances[i] = factory.newHazelcastInstance();
}
assertClusterSizeEventually(instances);
}
@Test
public void serialJoin_withNewInstances() {
TestHazelcastInstanceFactory factory = createHazelcastInstanceFactory();
HazelcastInstance[] instances = factory.newInstances(new Config(), nodeCount);
assertClusterSizeEventually(instances);
}
@Test
public void parallelJoin() {
final TestHazelcastInstanceFactory factory = createHazelcastInstanceFactory();
final Collection<HazelcastInstance> instances = Collections.synchronizedCollection(new ArrayList<HazelcastInstance>());
final CountDownLatch latch = new CountDownLatch(nodeCount);
for (int i = 0; i < nodeCount; i++) {
new Thread() {
public void run() {
HazelcastInstance hz = factory.newHazelcastInstance();
instances.add(hz);
latch.countDown();
}
}.start();
}
assertOpenEventually(latch);
assertEquals(nodeCount, instances.size());
for (HazelcastInstance instance : instances) {
assertClusterSizeEventually(nodeCount, instance);
}
}
@Test
public void restart_master() {
TestHazelcastInstanceFactory factory = createHazelcastInstanceFactory();
HazelcastInstance[] instances = factory.newInstances(new Config(), nodeCount);
assertClusterSizeEventually(instances);
Address address = getAddress(instances[0]);
instances[0].getLifecycleService().terminate();
instances[0] = factory.newHazelcastInstance(address, new Config());
assertClusterSizeEventually(instances);
}
@Test
public void restart_slave() {
TestHazelcastInstanceFactory factory = createHazelcastInstanceFactory();
HazelcastInstance[] instances = factory.newInstances(new Config(), nodeCount);
assertClusterSizeEventually(instances);
Address address = getAddress(instances[1]);
instances[1].getLifecycleService().terminate();
instances[1] = factory.newHazelcastInstance(address, new Config());
assertClusterSizeEventually(instances);
}
@Test
public void restart_multipleInParallel() {
final TestHazelcastInstanceFactory factory = createHazelcastInstanceFactory();
final HazelcastInstance[] instances = factory.newInstances(new Config(), nodeCount);
assertClusterSizeEventually(instances);
int restartCount = nodeCount / 2;
final CountDownLatch latch = new CountDownLatch(restartCount);
for (int i = 0; i < restartCount; i++) {
final int ix = i;
new Thread() {
public void run() {
Address address = getAddress(instances[ix]);
instances[ix].getLifecycleService().terminate();
instances[ix] = factory.newHazelcastInstance(address, new Config());
latch.countDown();
}
}.start();
}
assertOpenEventually(latch);
assertClusterSizeEventually(instances);
}
private void assertClusterSizeEventually(HazelcastInstance... instances) {
int size = instances.length;
for (HazelcastInstance instance : instances) {
assertClusterSizeEventually(size, instance);
}
}
}