/*
 * JBoss, Home of Professional Open Source
 * Copyright 2007, Red Hat Middleware LLC, and individual contributors
 * as indicated by the @author tags.
 * See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 * This copyrighted material is made available to anyone wishing to use,
 * modify, copy, or redistribute it subject to the terms and conditions
 * of the GNU Lesser General Public License, v. 2.1.
 * This program is distributed in the hope that it will be useful, but WITHOUT A
 * 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,
 * v.2.1 along with this distribution; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA  02110-1301, USA.
 *
 * (C) 2005-2006,
 * @author JBoss Inc.
 */
package com.jboss.transaction.wstf.webservices;

import org.oasis_open.docs.ws_tx.wscoor._2006._06.CoordinationContextType;

import javax.xml.ws.handler.MessageContext;

/**
 * Helper class for passing a coordination context in a SOAP header when using JaxWS
 */
public class CoordinationContextManager {
    /**
     * The key used for the coordination context within a message exchange.
     */
    private static final String COORDINATION_CONTEXT_PROPERTY = "org.jboss.xts.message.context.coordination.context.property";

    /**
     * The coordination context associated with the thread.
     */
    private static final ThreadLocal THREAD_CONTEXT = new ThreadLocal() ;

    /**
     * Get the coordination context from the message context if present.
     * @param messageContext The message context.
     * @return The coordination context or null if not present.
     */
    public static CoordinationContextType getContext(final MessageContext messageContext)
    {
        return (CoordinationContextType)messageContext.get(COORDINATION_CONTEXT_PROPERTY) ;
    }

    /**
     * Set the coordination context for the message context.
     * @param messageContext The message context.
     * @param coordinationContext The coordination context.
     */
    public static void setContext(final MessageContext messageContext, final CoordinationContextType coordinationContext)
    {
        messageContext.put(COORDINATION_CONTEXT_PROPERTY, coordinationContext) ;
        messageContext.setScope(COORDINATION_CONTEXT_PROPERTY, MessageContext.Scope.APPLICATION);
    }

    /**
     * Get the coordination context from the current thread if present.
     * @return The coordination context or null if not present.
     */
    public static CoordinationContextType getThreadContext()
    {
        return (CoordinationContextType)THREAD_CONTEXT.get() ;
    }

    /**
     * Set the coordination context for the current thread.
     * @param coordinationContext The coordination context.
     */
    public static void setThreadContext(final CoordinationContextType coordinationContext)
    {
        THREAD_CONTEXT.set(coordinationContext) ;
    }
}
