/*
 * JBoss, Home of Professional Open Source.
 * Copyright (c) 2011, Red Hat, Inc., and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.jboss.as.ejb3.tx;

import javax.transaction.Status;
import javax.transaction.SystemException;
import javax.transaction.Transaction;
import javax.transaction.TransactionManager;

import org.jboss.as.ejb3.logging.EjbLogger;
import org.jboss.as.ejb3.component.EJBComponent;
import org.jboss.invocation.ImmediateInterceptorFactory;
import org.jboss.invocation.InterceptorContext;
import org.jboss.invocation.InterceptorFactory;

/**
 * CMT interceptor for timer invocations. An exception is thrown if the transaction is rolled back, so the timer
 * service knows to retry the timeout.
 *
 * @author Stuart Douglas
 */
public class TimerCMTTxInterceptor extends CMTTxInterceptor {

    /**
     * This is a hack to make sure that the transaction interceptor does not swallow the underlying exception
     */
    private static final ThreadLocal<Throwable> EXCEPTION = new ThreadLocal<Throwable>();

    public static final InterceptorFactory FACTORY = new ImmediateInterceptorFactory(new TimerCMTTxInterceptor());

    @Override
    public void handleExceptionInOurTx(final InterceptorContext invocation, final Throwable t, final Transaction tx, final EJBComponent component) throws Exception {
        EXCEPTION.set(t);
        super.handleExceptionInOurTx(invocation, t, tx, component);
    }

    @Override
    protected void endTransaction(final TransactionManager tm, final Transaction tx) {
        try {
            boolean rolledBack = false;
            try {
                if (tx.getStatus() == Status.STATUS_MARKED_ROLLBACK) {
                    rolledBack = true;
                }
            } catch (SystemException e) {
                throw new RuntimeException(e);
            } finally {
                super.endTransaction(tm, tx);
            }
            if (rolledBack && EXCEPTION.get() == null) {
                throw EjbLogger.ROOT_LOGGER.timerInvocationRolledBack();
            }
        } finally {
            EXCEPTION.remove();
        }
    }
}