/*
* 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.map.tx;
import com.hazelcast.map.MapRecordKey;
import com.hazelcast.map.MapService;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.spi.NodeEngine;
import com.hazelcast.spi.Operation;
import com.hazelcast.transaction.TransactionException;
import com.hazelcast.transaction.impl.KeyAwareTransactionLog;
import com.hazelcast.util.ExceptionUtil;
import com.hazelcast.util.ThreadUtil;
import java.io.IOException;
import java.util.concurrent.Future;
public class MapTransactionLog implements KeyAwareTransactionLog {
String name;
Data key;
long threadId = ThreadUtil.getThreadId();
String ownerUuid;
Operation op;
public MapTransactionLog() {
}
public MapTransactionLog(String name, Data key, Operation op, long version, String ownerUuid) {
this.name = name;
this.key = key;
if (!(op instanceof MapTxnOperation)) {
throw new IllegalArgumentException();
}
this.op = op;
this.ownerUuid = ownerUuid;
}
@Override
public Future prepare(NodeEngine nodeEngine) throws TransactionException {
TxnPrepareOperation operation = new TxnPrepareOperation(name, key, ownerUuid);
operation.setThreadId(threadId);
try {
int partitionId = nodeEngine.getPartitionService().getPartitionId(key);
return nodeEngine.getOperationService().invokeOnPartition(MapService.SERVICE_NAME, operation, partitionId);
} catch (Throwable t) {
throw ExceptionUtil.rethrow(t);
}
}
@Override
public Future commit(NodeEngine nodeEngine) {
MapTxnOperation txnOp = (MapTxnOperation) op;
txnOp.setThreadId(threadId);
txnOp.setOwnerUuid(ownerUuid);
try {
int partitionId = nodeEngine.getPartitionService().getPartitionId(key);
return nodeEngine.getOperationService().invokeOnPartition(MapService.SERVICE_NAME, op, partitionId);
} catch (Throwable t) {
throw ExceptionUtil.rethrow(t);
}
}
public Future rollback(NodeEngine nodeEngine) {
int partitionId = nodeEngine.getPartitionService().getPartitionId(key);
TxnRollbackOperation operation = new TxnRollbackOperation(name, key, ownerUuid);
operation.setThreadId(threadId);
try {
return nodeEngine.getOperationService().invokeOnPartition(MapService.SERVICE_NAME, operation, partitionId);
} catch (Throwable t) {
throw ExceptionUtil.rethrow(t);
}
}
@Override
public void writeData(ObjectDataOutput out) throws IOException {
out.writeUTF(name);
boolean isNullKey = key == null;
out.writeBoolean(isNullKey);
if (!isNullKey) {
key.writeData(out);
}
out.writeLong(threadId);
out.writeUTF(ownerUuid);
out.writeObject(op);
}
@Override
public void readData(ObjectDataInput in) throws IOException {
name = in.readUTF();
boolean isNullKey = in.readBoolean();
if (!isNullKey) {
key = new Data();
key.readData(in);
}
threadId = in.readLong();
ownerUuid = in.readUTF();
op = in.readObject();
}
@Override
public Object getKey() {
return new MapRecordKey(name, key);
}
}