/*
* Copyright 2010-2011 the original author or authors.
*
* 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.starflow.wf.engine.transaction;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.TransactionException;
import org.springframework.transaction.TransactionStatus;
import org.springframework.transaction.TransactionSystemException;
import org.springframework.transaction.support.DefaultTransactionDefinition;
/**
*
* @author libinsong1204@gmail.com
* @date 2011-1-7
* @version
*/
public class SpringTransactionPolicy implements TransactedPolicy {
protected final Logger logger = LoggerFactory.getLogger(SpringTransactionPolicy.class);
private PlatformTransactionManager transactionManager;
public SpringTransactionPolicy(PlatformTransactionManager transactionManager) {
this.transactionManager = transactionManager;
}
@Override
public TransactionStatus begin() {
if(transactionManager != null) {
DefaultTransactionDefinition definition = new DefaultTransactionDefinition();
TransactionStatus txStatus = transactionManager.getTransaction(definition);
return txStatus;
} else {
return null;
}
}
@Override
public TransactionStatus begin(int propagationBehavior) {
if(transactionManager != null) {
DefaultTransactionDefinition definition = new DefaultTransactionDefinition();
definition.setPropagationBehavior(propagationBehavior);
TransactionStatus txStatus = transactionManager.getTransaction(definition);
return txStatus;
} else {
return null;
}
}
@Override
public void commit(TransactionStatus txStatus) {
if(transactionManager !=null && txStatus != null) {
transactionManager.commit(txStatus);
}
}
@Override
public void rollbackOnException(TransactionStatus txStatus, Throwable ex) throws TransactionException {
logger.debug("Initiating transaction rollback on application exception", ex);
try {
if(transactionManager !=null && txStatus != null) {
this.transactionManager.rollback(txStatus);
}
} catch (TransactionSystemException ex2) {
logger.error("Application exception overridden by rollback exception", ex);
ex2.initApplicationException(ex);
throw ex2;
} catch (RuntimeException ex2) {
logger.error("Application exception overridden by rollback exception", ex);
throw ex2;
} catch (Error err) {
logger.error("Application exception overridden by rollback error", ex);
throw err;
}
}
}