/*
* 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.cache;
import com.hazelcast.cache.impl.CacheEventListener;
import com.hazelcast.cache.impl.ICacheRecordStore;
import com.hazelcast.cache.impl.ICacheService;
import com.hazelcast.config.CacheConfig;
import com.hazelcast.core.HazelcastInstance;
import com.hazelcast.instance.HazelcastInstanceProxy;
import com.hazelcast.instance.Node;
import com.hazelcast.internal.nearcache.impl.invalidation.Invalidation;
import com.hazelcast.internal.partition.InternalPartitionService;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.spi.serialization.SerializationService;
import com.hazelcast.test.AssertTask;
import com.hazelcast.test.HazelcastParallelClassRunner;
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.HashMap;
import java.util.Map;
import java.util.concurrent.atomic.AtomicInteger;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
@RunWith(HazelcastParallelClassRunner.class)
@Category({QuickTest.class, ParallelTest.class})
public class CacheClearTest extends CacheTestSupport {
private static final int INSTANCE_COUNT = 2;
private TestHazelcastInstanceFactory factory = getInstanceFactory(INSTANCE_COUNT);
private HazelcastInstance[] hazelcastInstances;
private HazelcastInstance hazelcastInstance;
protected TestHazelcastInstanceFactory getInstanceFactory(int instanceCount) {
return createHazelcastInstanceFactory(instanceCount);
}
@Override
protected void onSetup() {
hazelcastInstances = new HazelcastInstance[INSTANCE_COUNT];
for (int i = 0; i < hazelcastInstances.length; i++) {
hazelcastInstances[i] = factory.newHazelcastInstance(createConfig());
}
warmUpPartitions(hazelcastInstances);
waitAllForSafeState(hazelcastInstances);
hazelcastInstance = hazelcastInstances[0];
}
@Override
protected void onTearDown() {
factory.shutdownAll();
hazelcastInstances = null;
hazelcastInstance = null;
}
@Override
protected <K, V> CacheConfig<K, V> createCacheConfig() {
CacheConfig cacheConfig = super.createCacheConfig();
cacheConfig.setBackupCount(INSTANCE_COUNT - 1);
return cacheConfig;
}
@Override
protected HazelcastInstance getHazelcastInstance() {
return hazelcastInstance;
}
protected Map<String, String> createAndFillEntries() {
final int ENTRY_COUNT_PER_PARTITION = 3;
Node node = getNode(hazelcastInstance);
int partitionCount = node.getPartitionService().getPartitionCount();
Map<String, String> entries = new HashMap<String, String>(partitionCount * ENTRY_COUNT_PER_PARTITION);
for (int partitionId = 0; partitionId < partitionCount; partitionId++) {
for (int i = 0; i < ENTRY_COUNT_PER_PARTITION; i++) {
String key = generateKeyForPartition(hazelcastInstance, partitionId);
String value = generateRandomString(16);
entries.put(key, value);
}
}
return entries;
}
@Test
public void testClear() {
ICache<String, String> cache = createCache();
String cacheName = cache.getName();
Map<String, String> entries = createAndFillEntries();
for (Map.Entry<String, String> entry : entries.entrySet()) {
cache.put(entry.getKey(), entry.getValue());
}
// Verify that put works
for (Map.Entry<String, String> entry : entries.entrySet()) {
String key = entry.getKey();
String expectedValue = entries.get(key);
String actualValue = cache.get(key);
assertEquals(expectedValue, actualValue);
}
Node node = getNode(hazelcastInstance);
InternalPartitionService partitionService = node.getPartitionService();
SerializationService serializationService = node.getSerializationService();
// Verify that backup of put works
for (Map.Entry<String, String> entry : entries.entrySet()) {
String key = entry.getKey();
String expectedValue = entries.get(key);
Data keyData = serializationService.toData(key);
int keyPartitionId = partitionService.getPartitionId(keyData);
for (int i = 0; i < INSTANCE_COUNT; i++) {
Node n = getNode(hazelcastInstances[i]);
ICacheService cacheService = n.getNodeEngine().getService(ICacheService.SERVICE_NAME);
ICacheRecordStore recordStore = cacheService.getRecordStore("/hz/" + cacheName, keyPartitionId);
assertNotNull(recordStore);
String actualValue = serializationService.toObject(recordStore.get(keyData, null));
assertEquals(expectedValue, actualValue);
}
}
cache.clear();
// Verify that clear works
for (Map.Entry<String, String> entry : entries.entrySet()) {
String key = entry.getKey();
String actualValue = cache.get(key);
assertNull(actualValue);
}
// Verify that backup of clear works
for (Map.Entry<String, String> entry : entries.entrySet()) {
String key = entry.getKey();
Data keyData = serializationService.toData(key);
int keyPartitionId = partitionService.getPartitionId(keyData);
for (int i = 0; i < INSTANCE_COUNT; i++) {
Node n = getNode(hazelcastInstances[i]);
ICacheService cacheService = n.getNodeEngine().getService(ICacheService.SERVICE_NAME);
ICacheRecordStore recordStore = cacheService.getRecordStore("/hz/" + cacheName, keyPartitionId);
assertNotNull(recordStore);
String actualValue = serializationService.toObject(recordStore.get(keyData, null));
assertNull(actualValue);
}
}
}
@Test
public void testInvalidationListenerCallCount() {
final ICache<String, String> cache = createCache();
Map<String, String> entries = createAndFillEntries();
for (Map.Entry<String, String> entry : entries.entrySet()) {
cache.put(entry.getKey(), entry.getValue());
}
// Verify that put works
for (Map.Entry<String, String> entry : entries.entrySet()) {
String key = entry.getKey();
String expectedValue = entries.get(key);
String actualValue = cache.get(key);
assertEquals(expectedValue, actualValue);
}
final AtomicInteger counter = new AtomicInteger(0);
final CacheConfig config = cache.getConfiguration(CacheConfig.class);
registerInvalidationListener(new CacheEventListener() {
@Override
public void handleEvent(Object eventObject) {
if (eventObject instanceof Invalidation) {
Invalidation event = (Invalidation) eventObject;
if (null == event.getKey() && config.getNameWithPrefix().equals(event.getName())) {
counter.incrementAndGet();
}
}
}
}, config.getNameWithPrefix());
cache.clear();
// Make sure that one event is received
assertTrueEventually(new AssertTask() {
@Override
public void run()
throws Exception {
assertEquals(1, counter.get());
}
}, 5);
// Make sure that the callback is not called for a while
assertTrueAllTheTime(new AssertTask() {
@Override
public void run()
throws Exception {
assertTrue(counter.get() <= 1);
}
}, 3);
}
private void registerInvalidationListener(CacheEventListener cacheEventListener, String name) {
HazelcastInstanceProxy hzInstance = (HazelcastInstanceProxy) this.hazelcastInstance;
hzInstance.getOriginal().node.getNodeEngine().getEventService()
.registerListener(ICacheService.SERVICE_NAME, name, cacheEventListener);
}
}