/*
* 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;
import com.hazelcast.config.Config;
import com.hazelcast.core.HazelcastInstance;
import com.hazelcast.version.MemberVersion;
import com.hazelcast.version.Version;
import static com.hazelcast.instance.BuildInfoProvider.HAZELCAST_INTERNAL_OVERRIDE_VERSION;
import static com.hazelcast.test.HazelcastTestSupport.assertTrueEventually;
import static com.hazelcast.test.HazelcastTestSupport.getNode;
import static com.hazelcast.test.HazelcastTestSupport.waitAllForSafeState;
import static org.junit.Assert.assertEquals;
/**
* Utilities for cluster upgrade tests: start cluster members at designated version, assert cluster verion etc
*/
public class TestClusterUpgradeUtils {
// return a new HazelcastInstance at given version
public static HazelcastInstance newHazelcastInstance(TestHazelcastInstanceFactory factory,
MemberVersion version,
Config config) {
try {
System.setProperty(HAZELCAST_INTERNAL_OVERRIDE_VERSION, version.toString());
return factory.newHazelcastInstance(config);
} finally {
System.clearProperty(HAZELCAST_INTERNAL_OVERRIDE_VERSION);
}
}
// shutdown and replace each member in membersToUpgrade with a new HazelcastInstance at given version
public static void upgradeClusterMembers(TestHazelcastInstanceFactory factory, final HazelcastInstance[] membersToUpgrade,
MemberVersion version, Config config) {
upgradeClusterMembers(factory, membersToUpgrade, version, config, true);
}
public static void upgradeClusterMembers(TestHazelcastInstanceFactory factory, final HazelcastInstance[] membersToUpgrade,
MemberVersion version, Config config, boolean assertClusterSize) {
try {
System.setProperty(HAZELCAST_INTERNAL_OVERRIDE_VERSION, version.toString());
// upgrade one by one each member of the cluster to the next version
for (int i = 0; i < membersToUpgrade.length; i++) {
membersToUpgrade[i].shutdown();
waitAllForSafeState(membersToUpgrade);
// if new node's version is incompatible, then node startup will fail with IllegalStateException
membersToUpgrade[i] = factory.newHazelcastInstance(config);
waitAllForSafeState(membersToUpgrade);
if (assertClusterSize) {
// assert all members are in the cluster
assertTrueEventually(new AssertTask() {
@Override
public void run()
throws Exception {
assertEquals(membersToUpgrade.length, membersToUpgrade[0].getCluster().getMembers().size());
}
}, 30);
}
}
} finally {
System.clearProperty(HAZELCAST_INTERNAL_OVERRIDE_VERSION);
}
}
// assert all members' clusterService reports the given version
public static void assertClusterVersion(HazelcastInstance[] instances, Version version) {
for (int i = 0; i < instances.length; i++) {
assertEquals(version, instances[i].getCluster().getClusterVersion());
}
}
// assert all nodes in the cluster have the given codebase version
public static void assertNodesVersion(HazelcastInstance[] instances, MemberVersion version) {
for (int i = 0; i < instances.length; i++) {
assertEquals(version, getNode(instances[i]).getVersion());
}
}
}