/*
 * JBoss, Home of Professional Open Source
 * Copyright 2014, Red Hat Inc., and individual contributors as indicated
 * by the @authors tag. See the copyright.txt 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.weld.services.bootstrap;

import javax.transaction.Synchronization;

/**
 *
 *  Stores NamespaceContextSelector during synchronization, and pushes it on top of the selector stack each time synchronization
 *  callback method is executed. This enables synchronization callbacks served by corba threads to work correctly.
 *
 *  @author <a href="mailto:tadamski@redhat.com">Tomasz Adamski</a>
 */

import org.jboss.as.naming.context.NamespaceContextSelector;

public class JTSSynchronizationWrapper implements Synchronization {

    private final Synchronization synchronization;
    private final NamespaceContextSelector selector;

    public JTSSynchronizationWrapper(final Synchronization synchronization) {
        this.synchronization = synchronization;
        selector = NamespaceContextSelector.getCurrentSelector();
    }

    @Override
    public void beforeCompletion() {
        try {
            NamespaceContextSelector.pushCurrentSelector(selector);
            synchronization.beforeCompletion();
        } finally {
            NamespaceContextSelector.popCurrentSelector();
        }
    }

    @Override
    public void afterCompletion(final int status) {
        try {
            NamespaceContextSelector.pushCurrentSelector(selector);
            synchronization.afterCompletion(status);

        } finally {
            NamespaceContextSelector.popCurrentSelector();
        }
    }

}