/*
* 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.internal.partition.impl;
import com.hazelcast.cluster.ClusterState;
import com.hazelcast.config.Config;
import com.hazelcast.core.HazelcastInstance;
import com.hazelcast.core.HazelcastInstanceNotActiveException;
import com.hazelcast.instance.DefaultNodeExtension;
import com.hazelcast.instance.HazelcastInstanceFactory;
import com.hazelcast.instance.Node;
import com.hazelcast.instance.NodeContext;
import com.hazelcast.instance.NodeExtension;
import com.hazelcast.internal.partition.PartitionListener;
import com.hazelcast.internal.partition.PartitionTableView;
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 com.hazelcast.test.mocknetwork.MockNodeContext;
import org.junit.Before;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;
import java.util.List;
import java.util.concurrent.atomic.AtomicBoolean;
import static com.hazelcast.internal.partition.InternalPartition.MAX_REPLICA_COUNT;
import static org.hamcrest.Matchers.empty;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
@RunWith(HazelcastParallelClassRunner.class)
@Category({QuickTest.class, ParallelTest.class})
public class InternalPartitionServiceImplTest extends HazelcastTestSupport {
private HazelcastInstance instance;
private InternalPartitionServiceImpl partitionService;
private Address thisAddress;
private int partitionCount;
private final AtomicBoolean startupDone = new AtomicBoolean(true);
@Before
public void setup() {
TestHazelcastInstanceFactory factory = createHazelcastInstanceFactory();
NodeContext nodeContext = new MockNodeContext(factory.getRegistry(), factory.nextAddress()) {
@Override
public NodeExtension createNodeExtension(Node node) {
return new DefaultNodeExtension(node) {
@Override
public boolean isStartCompleted() {
return startupDone.get();
}
};
}
};
instance = HazelcastInstanceFactory.newHazelcastInstance(new Config(), randomName(), nodeContext);
partitionService = (InternalPartitionServiceImpl) getPartitionService(instance);
thisAddress = getNode(instance).getThisAddress();
partitionCount = partitionService.getPartitionCount();
}
@Test(expected = HazelcastInstanceNotActiveException.class)
public void test_getPartitionOwnerOrWait_throwsException_afterNodeShutdown() throws Exception {
instance.shutdown();
partitionService.getPartitionOwnerOrWait(0);
}
@Test
public void test_initialAssignment() {
partitionService.firstArrangement();
int partitionCount = partitionService.getPartitionCount();
for (int i = 0; i < partitionCount; i++) {
assertTrue(partitionService.isPartitionOwner(i));
}
}
@Test
public void test_initialAssignment_whenStartNotCompleted() {
startupDone.set(false);
partitionService.firstArrangement();
assertFalse(partitionService.getPartitionStateManager().isInitialized());
assertEquals(0, partitionService.getPartitionStateVersion());
assertNull(partitionService.getPartitionOwner(0));
}
@Test
public void test_initialAssignment_whenClusterNotActive() {
instance.getCluster().changeClusterState(ClusterState.FROZEN);
partitionService.firstArrangement();
assertFalse(partitionService.getPartitionStateManager().isInitialized());
assertEquals(0, partitionService.getPartitionStateVersion());
assertNull(partitionService.getPartitionOwner(0));
}
@Test(expected = IllegalStateException.class)
public void test_getPartitionOwnerOrWait_whenClusterNotActive() {
instance.getCluster().changeClusterState(ClusterState.FROZEN);
partitionService.firstArrangement();
partitionService.getPartitionOwnerOrWait(0);
}
@Test
public void test_setInitialState() {
Address[][] addresses = new Address[partitionCount][MAX_REPLICA_COUNT];
for (int i = 0; i < partitionCount; i++) {
addresses[i][0] = thisAddress;
}
partitionService.setInitialState(new PartitionTableView(addresses, partitionCount));
for (int i = 0; i < partitionCount; i++) {
assertTrue(partitionService.isPartitionOwner(i));
}
assertEquals(partitionCount, partitionService.getPartitionStateVersion());
}
@Test(expected = IllegalStateException.class)
public void test_setInitialState_multipleTimes() {
Address[][] addresses = new Address[partitionCount][MAX_REPLICA_COUNT];
for (int i = 0; i < partitionCount; i++) {
addresses[i][0] = thisAddress;
}
partitionService.setInitialState(new PartitionTableView(addresses, 0));
partitionService.setInitialState(new PartitionTableView(addresses, 0));
}
@Test
public void test_setInitialState_listenerShouldNOTBeCalled() {
Address[][] addresses = new Address[partitionCount][MAX_REPLICA_COUNT];
for (int i = 0; i < partitionCount; i++) {
addresses[i][0] = thisAddress;
}
TestPartitionListener listener = new TestPartitionListener();
partitionService.addPartitionListener(listener);
partitionService.setInitialState(new PartitionTableView(addresses, 0));
assertEquals(0, listener.eventCount);
}
@Test
public void test_getMemberPartitions_whenNotInitialized() {
List<Integer> partitions = partitionService.getMemberPartitions(getAddress(instance));
assertTrue(partitionService.getPartitionStateManager().isInitialized());
assertEquals(partitionCount, partitions.size());
}
@Test
public void test_getMemberPartitions_whenInitialized() {
partitionService.firstArrangement();
List<Integer> partitions = partitionService.getMemberPartitions(getAddress(instance));
assertEquals(partitionCount, partitions.size());
}
@Test
public void test_getMemberPartitionsIfAssigned_whenNotInitialized() {
List<Integer> partitions = partitionService.getMemberPartitionsIfAssigned(getAddress(instance));
assertThat(partitions, empty());
}
@Test
public void test_getMemberPartitionsIfAssigned_whenInitialized() {
partitionService.firstArrangement();
List<Integer> partitions = partitionService.getMemberPartitionsIfAssigned(getAddress(instance));
assertEquals(partitionCount, partitions.size());
}
private static class TestPartitionListener implements PartitionListener {
private int eventCount;
@Override
public void replicaChanged(PartitionReplicaChangeEvent event) {
eventCount++;
}
}
}