/*
* 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.client;
import com.hazelcast.client.config.ClientConfig;
import com.hazelcast.client.impl.ClientEngineImpl;
import com.hazelcast.client.test.TestHazelcastFactory;
import com.hazelcast.core.HazelcastInstance;
import com.hazelcast.core.IExecutorService;
import com.hazelcast.test.AssertTask;
import com.hazelcast.test.HazelcastParallelClassRunner;
import com.hazelcast.test.HazelcastTestSupport;
import com.hazelcast.test.annotation.ParallelTest;
import com.hazelcast.test.annotation.QuickTest;
import org.junit.After;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
@RunWith(HazelcastParallelClassRunner.class)
@Category({QuickTest.class, ParallelTest.class})
public class ClientOwnershipTest extends HazelcastTestSupport {
private final TestHazelcastFactory hazelcastFactory = new TestHazelcastFactory();
@After
public void cleanup() {
hazelcastFactory.terminateAll();
}
@Test
public void test_clientOwnedByMember() {
HazelcastInstance instance = hazelcastFactory.newHazelcastInstance();
HazelcastInstance client = hazelcastFactory.newHazelcastClient();
String instanceUuid = instance.getLocalEndpoint().getUuid();
String clientUuid = client.getLocalEndpoint().getUuid();
ClientEngineImpl clientEngine = getClientEngineImpl(instance);
assertEquals(instanceUuid, clientEngine.getOwnerUuid(clientUuid));
}
@Test
public void test_clientOwnedInfoPropagatedToAllMembers() {
HazelcastInstance instance1 = hazelcastFactory.newHazelcastInstance();
HazelcastInstance client = hazelcastFactory.newHazelcastClient();
HazelcastInstance instance2 = hazelcastFactory.newHazelcastInstance();
final String instanceUuid = instance1.getLocalEndpoint().getUuid();
final String clientUuid = client.getLocalEndpoint().getUuid();
final ClientEngineImpl clientEngine1 = getClientEngineImpl(instance1);
final ClientEngineImpl clientEngine2 = getClientEngineImpl(instance2);
assertTrueEventually(new AssertTask() {
@Override
public void run() throws Exception {
assertEquals(instanceUuid, clientEngine1.getOwnerUuid(clientUuid));
assertEquals(instanceUuid, clientEngine2.getOwnerUuid(clientUuid));
}
});
}
@Test
public void test_clientOwnedBySecondMember_afterFirstOwnerDies() {
HazelcastInstance instance1 = hazelcastFactory.newHazelcastInstance();
HazelcastInstance client = hazelcastFactory.newHazelcastClient();
HazelcastInstance instance2 = hazelcastFactory.newHazelcastInstance();
instance1.shutdown();
final String instance2Uuid = instance2.getLocalEndpoint().getUuid();
final String clientUuid = client.getLocalEndpoint().getUuid();
final ClientEngineImpl clientEngine = getClientEngineImpl(instance2);
assertTrueEventually(new AssertTask() {
@Override
public void run() throws Exception {
assertEquals(instance2Uuid, clientEngine.getOwnerUuid(clientUuid));
}
});
}
@Test
public void test_clientOwnedByAlreadyConnectedSecondMember_afterFirstOwnerDies() {
final HazelcastInstance instance1 = hazelcastFactory.newHazelcastInstance();
HazelcastInstance client = hazelcastFactory.newHazelcastClient();
final HazelcastInstance instance2 = hazelcastFactory.newHazelcastInstance();
// make sure client connected to all nodes
IExecutorService exec = client.getExecutorService("exec");
exec.submitToAllMembers(new DummySerializableCallable());
assertTrueEventually(new AssertTask() {
@Override
public void run() throws Exception {
assertEquals(1, instance1.getClientService().getConnectedClients().size());
assertEquals(1, instance2.getClientService().getConnectedClients().size());
}
});
instance1.shutdown();
final String instance2Uuid = instance2.getLocalEndpoint().getUuid();
final String clientUuid = client.getLocalEndpoint().getUuid();
final ClientEngineImpl clientEngine = getClientEngineImpl(instance2);
assertTrueEventually(new AssertTask() {
@Override
public void run() throws Exception {
assertEquals(instance2Uuid, clientEngine.getOwnerUuid(clientUuid));
}
});
}
@Test
public void test_ownerShipRemoved_afterClientDies() {
HazelcastInstance instance1 = hazelcastFactory.newHazelcastInstance();
HazelcastInstance client = hazelcastFactory.newHazelcastClient();
HazelcastInstance instance2 = hazelcastFactory.newHazelcastInstance();
final String instanceUuid = instance1.getLocalEndpoint().getUuid();
final String clientUuid = client.getLocalEndpoint().getUuid();
final ClientEngineImpl clientEngine1 = getClientEngineImpl(instance1);
final ClientEngineImpl clientEngine2 = getClientEngineImpl(instance2);
assertTrueEventually(new AssertTask() {
@Override
public void run() throws Exception {
assertEquals(instanceUuid, clientEngine1.getOwnerUuid(clientUuid));
assertEquals(instanceUuid, clientEngine2.getOwnerUuid(clientUuid));
}
});
client.shutdown();
assertTrueEventually(new AssertTask() {
@Override
public void run() throws Exception {
assertNull(clientEngine1.getOwnerUuid(clientUuid));
assertNull(clientEngine2.getOwnerUuid(clientUuid));
}
});
}
@Test
public void test_ownerShip_afterClusterRestart() {
HazelcastInstance instance = hazelcastFactory.newHazelcastInstance();
ClientConfig clientConfig = new ClientConfig();
clientConfig.getNetworkConfig().setConnectionAttemptLimit(Integer.MAX_VALUE);
final HazelcastInstance client = hazelcastFactory.newHazelcastClient(clientConfig);
instance.shutdown();
final HazelcastInstance instance2 = hazelcastFactory.newHazelcastInstance();
// wait for client to connect to node
assertTrueEventually(new AssertTask() {
@Override
public void run() throws Exception {
assertClusterSize(1, client);
assertClusterSize(1, instance2);
}
});
final String instanceUuid = instance2.getLocalEndpoint().getUuid();
final ClientEngineImpl clientEngine2 = getClientEngineImpl(instance2);
final String clientUuid = client.getLocalEndpoint().getUuid();
assertTrueEventually(new AssertTask() {
@Override
public void run() throws Exception {
assertEquals(instanceUuid, clientEngine2.getOwnerUuid(clientUuid));
}
});
}
@Test
public void test_ownerShip_whenSmartClientAndOwnerDiesTogether() {
test_ownerShip_whenClientAndOwnerDiesTogether(true);
}
@Test
public void test_ownerShip_whenNonSmartClientAndOwnerDiesTogether() {
test_ownerShip_whenClientAndOwnerDiesTogether(false);
}
private void test_ownerShip_whenClientAndOwnerDiesTogether(boolean smart) {
final HazelcastInstance instance = hazelcastFactory.newHazelcastInstance();
ClientConfig config = new ClientConfig();
config.getNetworkConfig().setSmartRouting(smart);
final HazelcastInstance client = hazelcastFactory.newHazelcastClient(config);
final String clientUuid = client.getLocalEndpoint().getUuid();
final HazelcastInstance instance2 = hazelcastFactory.newHazelcastInstance();
client.getLifecycleService().terminate();
instance.getLifecycleService().terminate();
HazelcastInstance instance3 = hazelcastFactory.newHazelcastInstance();
final ClientEngineImpl clientEngine3 = getClientEngineImpl(instance3);
final ClientEngineImpl clientEngine2 = getClientEngineImpl(instance2);
assertTrueEventually(new AssertTask() {
@Override
public void run() throws Exception {
assertNull(clientEngine2.getOwnerUuid(clientUuid));
assertNull(clientEngine3.getOwnerUuid(clientUuid));
}
});
}
}