/*
* Copyright (c) 2008-2013, 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.concurrent.lock;
import com.hazelcast.concurrent.lock.operations.UnlockIfLeaseExpiredOperation;
import com.hazelcast.concurrent.lock.operations.UnlockOperation;
import com.hazelcast.logging.ILogger;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.spi.NodeEngine;
import com.hazelcast.spi.ObjectNamespace;
import com.hazelcast.spi.OperationAccessor;
import com.hazelcast.spi.OperationService;
import com.hazelcast.spi.ResponseHandler;
import com.hazelcast.spi.exception.RetryableException;
import com.hazelcast.util.scheduler.EntryTaskScheduler;
import com.hazelcast.util.scheduler.ScheduledEntry;
import com.hazelcast.util.scheduler.ScheduledEntryProcessor;
import java.util.Collection;
import static com.hazelcast.concurrent.lock.LockServiceImpl.SERVICE_NAME;
public final class LockEvictionProcessor implements ScheduledEntryProcessor<Data, Integer> {
private final NodeEngine nodeEngine;
private final ObjectNamespace namespace;
private final ILogger logger;
private final ResponseHandler unlockResponseHandler;
public LockEvictionProcessor(NodeEngine nodeEngine, ObjectNamespace namespace) {
this.nodeEngine = nodeEngine;
this.namespace = namespace;
logger = nodeEngine.getLogger(getClass());
unlockResponseHandler = new UnlockResponseHandler();
}
@Override
public void process(EntryTaskScheduler<Data, Integer> scheduler, Collection<ScheduledEntry<Data, Integer>> entries) {
for (ScheduledEntry<Data, Integer> entry : entries) {
Data key = entry.getKey();
int version = entry.getValue();
sendUnlockOperation(key, version);
}
}
private void sendUnlockOperation(Data key, int version) {
UnlockOperation operation = new UnlockIfLeaseExpiredOperation(namespace, key, version);
try {
submit(operation, key);
} catch (Throwable t) {
ILogger logger = nodeEngine.getLogger(getClass());
logger.warning(t);
}
}
private void submit(UnlockOperation operation, Data key) {
int partitionId = nodeEngine.getPartitionService().getPartitionId(key);
OperationService operationService = nodeEngine.getOperationService();
operation.setNodeEngine(nodeEngine);
operation.setServiceName(SERVICE_NAME);
operation.setPartitionId(partitionId);
OperationAccessor.setCallerAddress(operation, nodeEngine.getThisAddress());
operation.setCallerUuid(nodeEngine.getLocalMember().getUuid());
operation.setResponseHandler(unlockResponseHandler);
operation.setAsyncBackup(true);
operationService.executeOperation(operation);
}
private class UnlockResponseHandler implements ResponseHandler {
@Override
public void sendResponse(Object obj) {
if (obj instanceof Throwable) {
Throwable t = (Throwable) obj;
if (t instanceof RetryableException) {
logger.finest("While unlocking... " + t.getMessage());
} else {
logger.warning(t);
}
}
}
@Override
public boolean isLocal() {
return true;
}
}
}