org.springframework.jdbc.support.lob.LobCreatorUtils Maven / Gradle / Ivy
/*
* Copyright 2002-2012 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 org.springframework.jdbc.support.lob;
import javax.transaction.Status;
import javax.transaction.TransactionManager;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.transaction.TransactionSystemException;
import org.springframework.transaction.support.TransactionSynchronizationManager;
/**
* Helper class for registering a transaction synchronization for closing
* a LobCreator, preferring Spring transaction synchronization and falling
* back to plain JTA transaction synchronization.
*
* @author Juergen Hoeller
* @since 2.0
* @see SpringLobCreatorSynchronization
* @see org.springframework.transaction.support.TransactionSynchronizationManager
* @see JtaLobCreatorSynchronization
* @see javax.transaction.Transaction#registerSynchronization
*/
public abstract class LobCreatorUtils {
private static final Log logger = LogFactory.getLog(LobCreatorUtils.class);
/**
* Register a transaction synchronization for closing the given LobCreator,
* preferring Spring transaction synchronization and falling back to
* plain JTA transaction synchronization.
* @param lobCreator the LobCreator to close after transaction completion
* @param jtaTransactionManager the JTA TransactionManager to fall back to
* when no Spring transaction synchronization is active (may be {@code null})
* @throws IllegalStateException if there is neither active Spring transaction
* synchronization nor active JTA transaction synchronization
*/
public static void registerTransactionSynchronization(
LobCreator lobCreator, TransactionManager jtaTransactionManager) throws IllegalStateException {
if (TransactionSynchronizationManager.isSynchronizationActive()) {
logger.debug("Registering Spring transaction synchronization for LobCreator");
TransactionSynchronizationManager.registerSynchronization(
new SpringLobCreatorSynchronization(lobCreator));
}
else {
if (jtaTransactionManager != null) {
try {
int jtaStatus = jtaTransactionManager.getStatus();
if (jtaStatus == Status.STATUS_ACTIVE || jtaStatus == Status.STATUS_MARKED_ROLLBACK) {
logger.debug("Registering JTA transaction synchronization for LobCreator");
jtaTransactionManager.getTransaction().registerSynchronization(
new JtaLobCreatorSynchronization(lobCreator));
return;
}
}
catch (Throwable ex) {
throw new TransactionSystemException(
"Could not register synchronization with JTA TransactionManager", ex);
}
}
throw new IllegalStateException("Active Spring transaction synchronization or active " +
"JTA transaction with specified [javax.transaction.TransactionManager] required");
}
}
}