/*
* 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.operations;
import com.hazelcast.concurrent.lock.LockDataSerializerHook;
import com.hazelcast.concurrent.lock.LockWaitNotifyKey;
import com.hazelcast.core.OperationTimeoutException;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.spi.BackupAwareOperation;
import com.hazelcast.spi.ObjectNamespace;
import com.hazelcast.spi.Operation;
import com.hazelcast.spi.WaitNotifyKey;
import com.hazelcast.spi.WaitSupport;
public class LockOperation extends BaseLockOperation implements WaitSupport, BackupAwareOperation {
public LockOperation() {
}
public LockOperation(ObjectNamespace namespace, Data key, long threadId, long timeout) {
super(namespace, key, threadId, timeout);
}
public LockOperation(ObjectNamespace namespace, Data key, long threadId, long ttl, long timeout) {
super(namespace, key, threadId, ttl, timeout);
}
@Override
public void run() throws Exception {
response = getLockStore().lock(key, getCallerUuid(), threadId, ttl);
}
@Override
public Operation getBackupOperation() {
return new LockBackupOperation(namespace, key, threadId, getCallerUuid());
}
@Override
public boolean shouldBackup() {
return Boolean.TRUE.equals(response);
}
@Override
public final WaitNotifyKey getWaitKey() {
return new LockWaitNotifyKey(namespace, key);
}
@Override
public final boolean shouldWait() {
return getWaitTimeout() != 0 && !getLockStore().canAcquireLock(key, getCallerUuid(), threadId);
}
@Override
public int getId() {
return LockDataSerializerHook.LOCK;
}
@Override
public final void onWaitExpire() {
Object response;
long timeout = getWaitTimeout();
if (timeout < 0 || timeout == Long.MAX_VALUE) {
response = new OperationTimeoutException();
} else {
response = Boolean.FALSE;
}
getResponseHandler().sendResponse(response);
}
}