/*
* Copyright (c) 2008-2014, 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.operations;
import com.hazelcast.concurrent.lock.LockStoreImpl;
import com.hazelcast.logging.ILogger;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.spi.ObjectNamespace;
import java.io.IOException;
public final class UnlockIfLeaseExpiredOperation extends UnlockOperation {
private final int version;
public UnlockIfLeaseExpiredOperation(ObjectNamespace namespace, Data key, int version) {
super(namespace, key, -1, true);
this.version = version;
}
@Override
public void run() throws Exception {
LockStoreImpl lockStore = getLockStore();
int lockVersion = lockStore.getVersion(key);
if (version == lockVersion) {
forceUnlock();
} else {
ILogger logger = getLogger();
if (logger.isFinestEnabled()) {
logger.finest("Won't unlock since lock version is not matching expiration version: "
+ lockVersion + " vs " + version);
}
}
}
@Override
protected void writeInternal(ObjectDataOutput out) throws IOException {
throw new UnsupportedOperationException("This operation is intended to be executed on local member only!");
}
@Override
protected void readInternal(ObjectDataInput in) throws IOException {
throw new UnsupportedOperationException("This operation is intended to be executed on local member only!");
}
}