forked from hazelcast/hazelcast
/
AbstractLockOperation.java
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/
AbstractLockOperation.java
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/*
* Copyright (c) 2008-2019, 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.LockServiceImpl;
import com.hazelcast.concurrent.lock.LockStoreImpl;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.nio.serialization.IdentifiedDataSerializable;
import com.hazelcast.nio.serialization.impl.Versioned;
import com.hazelcast.spi.LockInterceptorService;
import com.hazelcast.spi.NamedOperation;
import com.hazelcast.spi.ObjectNamespace;
import com.hazelcast.spi.Operation;
import com.hazelcast.spi.PartitionAwareOperation;
import com.hazelcast.spi.ServiceNamespace;
import com.hazelcast.spi.ServiceNamespaceAware;
import java.io.IOException;
import java.util.concurrent.atomic.AtomicLongFieldUpdater;
import static com.hazelcast.concurrent.lock.ObjectNamespaceSerializationHelper.readNamespaceCompatibly;
import static com.hazelcast.concurrent.lock.ObjectNamespaceSerializationHelper.writeNamespaceCompatibly;
public abstract class AbstractLockOperation extends Operation
implements PartitionAwareOperation, IdentifiedDataSerializable, NamedOperation,
ServiceNamespaceAware, Versioned {
public static final int ANY_THREAD = 0;
private static final AtomicLongFieldUpdater<AbstractLockOperation> REFERENCE_CALL_ID =
AtomicLongFieldUpdater.newUpdater(AbstractLockOperation.class, "referenceCallId");
protected ObjectNamespace namespace;
protected Data key;
protected long threadId;
protected long leaseTime = -1L;
protected transient Object response;
private volatile long referenceCallId;
private transient boolean asyncBackup;
public AbstractLockOperation() {
}
protected AbstractLockOperation(ObjectNamespace namespace, Data key, long threadId) {
this.namespace = namespace;
this.key = key;
this.threadId = threadId;
}
protected AbstractLockOperation(ObjectNamespace namespace, Data key, long threadId, long timeout) {
this.namespace = namespace;
this.key = key;
this.threadId = threadId;
setWaitTimeout(timeout);
}
public AbstractLockOperation(ObjectNamespace namespace, Data key, long threadId, long leaseTime, long timeout) {
this.namespace = namespace;
this.key = key;
this.threadId = threadId;
this.leaseTime = leaseTime;
setWaitTimeout(timeout);
}
@Override
public final Object getResponse() {
return response;
}
protected final LockStoreImpl getLockStore() {
LockServiceImpl service = getService();
return service.getLockStore(getPartitionId(), namespace);
}
public final int getSyncBackupCount() {
if (asyncBackup) {
return 0;
} else {
return getLockStore().getBackupCount();
}
}
public final int getAsyncBackupCount() {
LockStoreImpl lockStore = getLockStore();
if (asyncBackup) {
return lockStore.getBackupCount() + lockStore.getAsyncBackupCount();
} else {
return lockStore.getAsyncBackupCount();
}
}
public final void setAsyncBackup(boolean asyncBackup) {
this.asyncBackup = asyncBackup;
}
@Override
protected void onSetCallId(long callId) {
REFERENCE_CALL_ID.compareAndSet(this, 0, callId);
}
protected final long getReferenceCallId() {
return referenceCallId != 0 ? referenceCallId : getCallId();
}
protected final void setReferenceCallId(long refCallId) {
this.referenceCallId = refCallId;
}
protected final void interceptLockOperation() {
// if service is a LockInterceptorService, notify it a key is about to be locked
Object targetService = getNodeEngine().getService(namespace.getServiceName());
if (targetService instanceof LockInterceptorService) {
((LockInterceptorService) targetService).onBeforeLock(namespace.getObjectName(), key);
}
}
@Override
public String getServiceName() {
return LockServiceImpl.SERVICE_NAME;
}
public final Data getKey() {
return key;
}
@Override
public String getName() {
return namespace.getObjectName();
}
@Override
public ServiceNamespace getServiceNamespace() {
return namespace;
}
@Override
public final int getFactoryId() {
return LockDataSerializerHook.F_ID;
}
@Override
protected void writeInternal(ObjectDataOutput out) throws IOException {
super.writeInternal(out);
writeNamespaceCompatibly(namespace, out);
out.writeData(key);
out.writeLong(threadId);
out.writeLong(leaseTime);
out.writeLong(referenceCallId);
}
@Override
protected void readInternal(ObjectDataInput in) throws IOException {
super.readInternal(in);
namespace = readNamespaceCompatibly(in);
key = in.readData();
threadId = in.readLong();
leaseTime = in.readLong();
referenceCallId = in.readLong();
}
@Override
protected void toString(StringBuilder sb) {
super.toString(sb);
sb.append(", namespace=").append(namespace);
sb.append(", threadId=").append(threadId);
}
}