com.hazelcast.cache.impl.AbstractInternalCacheProxy Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2016, 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.impl;
import com.hazelcast.cache.CacheStatistics;
import com.hazelcast.cache.impl.event.CachePartitionLostEventFilter;
import com.hazelcast.cache.impl.event.CachePartitionLostListener;
import com.hazelcast.cache.impl.event.InternalCachePartitionLostListenerAdapter;
import com.hazelcast.cache.impl.operation.MutableOperation;
import com.hazelcast.config.CacheConfig;
import com.hazelcast.config.CachePartitionLostListenerConfig;
import com.hazelcast.config.ListenerConfig;
import com.hazelcast.core.HazelcastInstanceNotActiveException;
import com.hazelcast.nio.ClassLoaderUtil;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.spi.EventFilter;
import com.hazelcast.spi.InternalCompletableFuture;
import com.hazelcast.spi.NodeEngine;
import com.hazelcast.spi.Operation;
import com.hazelcast.spi.OperationFactory;
import com.hazelcast.spi.OperationService;
import com.hazelcast.util.ExceptionUtil;
import javax.cache.CacheException;
import javax.cache.configuration.CacheEntryListenerConfiguration;
import javax.cache.expiry.ExpiryPolicy;
import java.util.Collection;
import java.util.EventListener;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;
import static com.hazelcast.cache.impl.CacheProxyUtil.getPartitionId;
import static com.hazelcast.cache.impl.CacheProxyUtil.validateNotNull;
import static com.hazelcast.cache.impl.operation.MutableOperation.IGNORE_COMPLETION;
/**
* Abstract {@link com.hazelcast.cache.ICache} implementation which provides shared internal implementations
* of cache operations like put, replace, remove and invoke. These internal implementations are delegated
* by actual cache methods.
*
* Note: this partial implementation is used by server or embedded mode cache.
*
* @param the type of key.
* @param the type of value.
* @see com.hazelcast.cache.impl.CacheProxy
* @see com.hazelcast.cache.ICache
*/
abstract class AbstractInternalCacheProxy
extends AbstractCacheProxyBase
implements ICacheInternal, CacheSyncListenerCompleter {
private static final long MAX_COMPLETION_LATCH_WAIT_TIME = TimeUnit.MINUTES.toMillis(5);
private static final long COMPLETION_LATCH_WAIT_TIME_STEP = TimeUnit.SECONDS.toMillis(1);
private final ConcurrentMap asyncListenerRegistrations;
private final ConcurrentMap syncListenerRegistrations;
private final ConcurrentMap syncLocks;
private final AtomicInteger completionIdCounter = new AtomicInteger();
protected AbstractInternalCacheProxy(CacheConfig cacheConfig, NodeEngine nodeEngine,
ICacheService cacheService) {
super(cacheConfig, nodeEngine, cacheService);
asyncListenerRegistrations = new ConcurrentHashMap();
syncListenerRegistrations = new ConcurrentHashMap();
syncLocks = new ConcurrentHashMap();
final List configs = cacheConfig.getPartitionLostListenerConfigs();
for (CachePartitionLostListenerConfig listenerConfig : configs) {
final CachePartitionLostListener listener = initializeListener(listenerConfig);
if (listener != null) {
final InternalCachePartitionLostListenerAdapter listenerAdapter =
new InternalCachePartitionLostListenerAdapter(listener);
final EventFilter filter = new CachePartitionLostEventFilter();
final ICacheService service = getService();
service.getNodeEngine().getEventService()
.registerListener(AbstractCacheService.SERVICE_NAME, name, filter, listenerAdapter);
}
}
}
protected InternalCompletableFuture invoke(Operation op, int partitionId, boolean completionOperation) {
Integer completionId = null;
if (completionOperation) {
completionId = registerCompletionLatch(1);
if (op instanceof MutableOperation) {
((MutableOperation) op).setCompletionId(completionId);
}
}
try {
final InternalCompletableFuture f =
getNodeEngine().getOperationService()
.invokeOnPartition(getServiceName(), op, partitionId);
if (completionOperation) {
waitCompletionLatch(completionId);
}
return f;
} catch (Throwable e) {
if (e instanceof IllegalStateException) {
close();
}
throw ExceptionUtil.rethrowAllowedTypeFirst(e, CacheException.class);
} finally {
if (completionOperation) {
deregisterCompletionLatch(completionId);
}
}
}
protected InternalCompletableFuture invoke(Operation op, Data keyData, boolean completionOperation) {
final int partitionId = getPartitionId(getNodeEngine(), keyData);
return invoke(op, partitionId, completionOperation);
}
protected InternalCompletableFuture removeAsyncInternal(K key, V oldValue, boolean hasOldValue,
boolean isGet, boolean withCompletionEvent) {
ensureOpen();
if (hasOldValue) {
validateNotNull(key, oldValue);
CacheProxyUtil.validateConfiguredTypes(cacheConfig, key, oldValue);
} else {
validateNotNull(key);
CacheProxyUtil.validateConfiguredTypes(cacheConfig, key);
}
final Data keyData = serializationService.toData(key);
final Data valueData = serializationService.toData(oldValue);
final Operation operation;
if (isGet) {
operation = operationProvider.createGetAndRemoveOperation(keyData, IGNORE_COMPLETION);
} else {
operation = operationProvider.createRemoveOperation(keyData, valueData, IGNORE_COMPLETION);
}
return invoke(operation, keyData, withCompletionEvent);
}
protected InternalCompletableFuture replaceAsyncInternal(K key, V oldValue, V newValue,
ExpiryPolicy expiryPolicy,
boolean hasOldValue, boolean isGet,
boolean withCompletionEvent) {
ensureOpen();
if (hasOldValue) {
validateNotNull(key, oldValue, newValue);
CacheProxyUtil.validateConfiguredTypes(cacheConfig, key, oldValue, newValue);
} else {
validateNotNull(key, newValue);
CacheProxyUtil.validateConfiguredTypes(cacheConfig, key, newValue);
}
final Data keyData = serializationService.toData(key);
final Data oldValueData = serializationService.toData(oldValue);
final Data newValueData = serializationService.toData(newValue);
final Operation operation;
if (isGet) {
operation = operationProvider.createGetAndReplaceOperation(keyData, newValueData,
expiryPolicy, IGNORE_COMPLETION);
} else {
operation = operationProvider.createReplaceOperation(keyData, oldValueData, newValueData,
expiryPolicy, IGNORE_COMPLETION);
}
return invoke(operation, keyData, withCompletionEvent);
}
protected InternalCompletableFuture putAsyncInternal(K key, V value, ExpiryPolicy expiryPolicy,
boolean isGet, boolean withCompletionEvent) {
ensureOpen();
validateNotNull(key, value);
CacheProxyUtil.validateConfiguredTypes(cacheConfig, key, value);
final Data keyData = serializationService.toData(key);
final Data valueData = serializationService.toData(value);
final Operation op = operationProvider.createPutOperation(keyData, valueData, expiryPolicy,
isGet, IGNORE_COMPLETION);
return invoke(op, keyData, withCompletionEvent);
}
protected InternalCompletableFuture putIfAbsentAsyncInternal(K key, V value,
ExpiryPolicy expiryPolicy,
boolean withCompletionEvent) {
ensureOpen();
validateNotNull(key, value);
CacheProxyUtil.validateConfiguredTypes(cacheConfig, key, value);
final Data keyData = serializationService.toData(key);
final Data valueData = serializationService.toData(value);
Operation operation = operationProvider.createPutIfAbsentOperation(keyData, valueData,
expiryPolicy, IGNORE_COMPLETION);
return invoke(operation, keyData, withCompletionEvent);
}
protected void clearInternal() {
final OperationService operationService = getNodeEngine().getOperationService();
OperationFactory operationFactory = operationProvider.createClearOperationFactory();
try {
final Map results =
operationService.invokeOnAllPartitions(getServiceName(), operationFactory);
for (Object result : results.values()) {
if (result != null && result instanceof CacheClearResponse) {
final Object response = ((CacheClearResponse) result).getResponse();
if (response instanceof Throwable) {
throw (Throwable) response;
}
}
}
} catch (Throwable t) {
throw ExceptionUtil.rethrowAllowedTypeFirst(t, CacheException.class);
}
}
protected void removeAllInternal(Set keys) {
final Set keysData;
if (keys != null) {
keysData = new HashSet();
for (K key : keys) {
keysData.add(serializationService.toData(key));
}
} else {
keysData = null;
}
final int partitionCount = getNodeEngine().getPartitionService().getPartitionCount();
final Integer completionId = registerCompletionLatch(partitionCount);
final OperationService operationService = getNodeEngine().getOperationService();
OperationFactory operationFactory =
operationProvider.createRemoveAllOperationFactory(keysData, completionId);
try {
final Map results =
operationService.invokeOnAllPartitions(getServiceName(), operationFactory);
int completionCount = 0;
for (Object result : results.values()) {
if (result != null && result instanceof CacheClearResponse) {
final Object response = ((CacheClearResponse) result).getResponse();
if (response instanceof Boolean) {
completionCount++;
}
if (response instanceof Throwable) {
throw (Throwable) response;
}
}
}
waitCompletionLatch(completionId, partitionCount - completionCount);
} catch (Throwable t) {
deregisterCompletionLatch(completionId);
throw ExceptionUtil.rethrowAllowedTypeFirst(t, CacheException.class);
}
}
protected void addListenerLocally(String regId,
CacheEntryListenerConfiguration cacheEntryListenerConfiguration) {
if (cacheEntryListenerConfiguration.isSynchronous()) {
syncListenerRegistrations.putIfAbsent(cacheEntryListenerConfiguration, regId);
} else {
asyncListenerRegistrations.putIfAbsent(cacheEntryListenerConfiguration, regId);
}
}
protected String removeListenerLocally(CacheEntryListenerConfiguration cacheEntryListenerConfiguration) {
final ConcurrentMap regs;
if (cacheEntryListenerConfiguration.isSynchronous()) {
regs = syncListenerRegistrations;
} else {
regs = asyncListenerRegistrations;
}
return regs.remove(cacheEntryListenerConfiguration);
}
protected String getListenerIdLocal(CacheEntryListenerConfiguration cacheEntryListenerConfiguration) {
final ConcurrentMap regs;
if (cacheEntryListenerConfiguration.isSynchronous()) {
regs = syncListenerRegistrations;
} else {
regs = asyncListenerRegistrations;
}
return regs.get(cacheEntryListenerConfiguration);
}
private void deregisterAllCacheEntryListener(Collection listenerRegistrations) {
final ICacheService service = getService();
for (String regId : listenerRegistrations) {
service.deregisterListener(nameWithPrefix, regId);
}
}
@Override
protected void closeListeners() {
deregisterAllCacheEntryListener(syncListenerRegistrations.values());
deregisterAllCacheEntryListener(asyncListenerRegistrations.values());
syncListenerRegistrations.clear();
asyncListenerRegistrations.clear();
notifyAndClearSyncListenerLatches();
}
private void notifyAndClearSyncListenerLatches() {
// notify waiting sync listeners
Collection latches = syncLocks.values();
Iterator iterator = latches.iterator();
while (iterator.hasNext()) {
CountDownLatch latch = iterator.next();
iterator.remove();
while (latch.getCount() > 0) {
latch.countDown();
}
}
}
public void countDownCompletionLatch(int countDownLatchId) {
if (countDownLatchId != IGNORE_COMPLETION) {
final CountDownLatch countDownLatch = syncLocks.get(countDownLatchId);
if (countDownLatch == null) {
return;
}
countDownLatch.countDown();
if (countDownLatch.getCount() == 0) {
deregisterCompletionLatch(countDownLatchId);
}
}
}
protected Integer registerCompletionLatch(int count) {
if (!syncListenerRegistrations.isEmpty()) {
final int id = completionIdCounter.incrementAndGet();
int size = syncListenerRegistrations.size();
CountDownLatch countDownLatch = new CountDownLatch(count * size);
syncLocks.put(id, countDownLatch);
return id;
}
return IGNORE_COMPLETION;
}
protected void deregisterCompletionLatch(Integer countDownLatchId) {
if (countDownLatchId != IGNORE_COMPLETION) {
syncLocks.remove(countDownLatchId);
}
}
protected void waitCompletionLatch(Integer countDownLatchId) {
if (countDownLatchId != IGNORE_COMPLETION) {
final CountDownLatch countDownLatch = syncLocks.get(countDownLatchId);
if (countDownLatch != null) {
awaitLatch(countDownLatch);
}
}
}
protected void waitCompletionLatch(Integer countDownLatchId, int offset) {
if (countDownLatchId != IGNORE_COMPLETION) {
final CountDownLatch countDownLatch = syncLocks.get(countDownLatchId);
if (countDownLatch != null) {
for (int i = 0; i < offset; i++) {
countDownLatch.countDown();
}
awaitLatch(countDownLatch);
}
}
}
private void awaitLatch(CountDownLatch countDownLatch) {
try {
long currentTimeoutMs = MAX_COMPLETION_LATCH_WAIT_TIME;
// Call latch await in small steps to be able to check if node is still active.
// If not active then throw HazelcastInstanceNotActiveException,
// If closed or destroyed then throw IllegalStateException,
// otherwise continue to wait until `MAX_COMPLETION_LATCH_WAIT_TIME` passes.
//
// Warning: Silently ignoring if latch does not countDown in time.
while (currentTimeoutMs > 0
&& !countDownLatch.await(COMPLETION_LATCH_WAIT_TIME_STEP, TimeUnit.MILLISECONDS)) {
currentTimeoutMs -= COMPLETION_LATCH_WAIT_TIME_STEP;
if (!getNodeEngine().isRunning()) {
throw new HazelcastInstanceNotActiveException();
} else if (isClosed()) {
throw new IllegalStateException("Cache (" + nameWithPrefix + ") is closed !");
} else if (isDestroyed()) {
throw new IllegalStateException("Cache (" + nameWithPrefix + ") is destroyed !");
}
}
} catch (InterruptedException e) {
ExceptionUtil.sneakyThrow(e);
}
}
private T initializeListener(ListenerConfig listenerConfig) {
T listener = null;
if (listenerConfig.getImplementation() != null) {
listener = (T) listenerConfig.getImplementation();
} else if (listenerConfig.getClassName() != null) {
try {
return ClassLoaderUtil.newInstance(getNodeEngine().getConfigClassLoader(),
listenerConfig.getClassName());
} catch (Exception e) {
throw ExceptionUtil.rethrow(e);
}
}
return listener;
}
@Override
public CacheStatistics getLocalCacheStatistics() {
// TODO Throw `UnsupportedOperationException` if cache statistics are not enabled
// but it breaks backward compatibility.
final ICacheService service = getService();
return service.createCacheStatIfAbsent(cacheConfig.getNameWithPrefix());
}
}
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