/*
* JBoss, Home of Professional Open Source
* Copyright 2012, Red Hat, Inc., and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* 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.jboss.seam.faces.transaction;
import javax.enterprise.event.Observes;
import javax.faces.event.AbortProcessingException;
import javax.faces.event.ExceptionQueuedEvent;
import javax.inject.Inject;
import javax.transaction.SystemException;
import javax.transaction.UserTransaction;
//import org.jboss.seam.transaction.DefaultTransaction;
//import org.jboss.seam.transaction.SeamTransaction;
import org.jboss.solder.logging.Logger;
/**
* Simple observer to mark the current transaction for rollback when an unexpected exception occurs.
* NOTE: Must be using Seam Transaction for this to work properly, otherwise it's skipped.
*
* @author <a href="http://community.jboss.org/people/LightGuard">Jason Porter</a>
*/
public class UnexpectedExceptionObserver {
@Inject
private Logger log;
@Inject
// @DefaultTransaction
private UserTransaction tx;
public void processEvent(@Observes ExceptionQueuedEvent event) throws AbortProcessingException {
try {
log.debug("Marking transaction for rollback based on unexpected exception", event.getContext().getException());
tx.setRollbackOnly();
} catch (SystemException e) {
log.warn("Could not mark transaction for rollback", e);
}
}
}