001    /**
002     *   GRANITE DATA SERVICES
003     *   Copyright (C) 2006-2013 GRANITE DATA SERVICES S.A.S.
004     *
005     *   This file is part of the Granite Data Services Platform.
006     *
007     *   Granite Data Services is free software; you can redistribute it and/or
008     *   modify it under the terms of the GNU Lesser General Public
009     *   License as published by the Free Software Foundation; either
010     *   version 2.1 of the License, or (at your option) any later version.
011     *
012     *   Granite Data Services is distributed in the hope that it will be useful,
013     *   but WITHOUT ANY WARRANTY; without even the implied warranty of
014     *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
015     *   General Public License for more details.
016     *
017     *   You should have received a copy of the GNU Lesser General Public
018     *   License along with this library; if not, write to the Free Software
019     *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
020     *   USA, or see <http://www.gnu.org/licenses/>.
021     */
022    package org.granite.messaging.webapp;
023    
024    import java.io.IOException;
025    
026    import javax.servlet.ServletException;
027    import javax.servlet.http.HttpServlet;
028    import javax.servlet.http.HttpServletRequest;
029    import javax.servlet.http.HttpServletResponse;
030    
031    import org.granite.logging.Logger;
032    import org.granite.context.AMFContextImpl;
033    import org.granite.context.GraniteContext;
034    import org.granite.messaging.amf.AMF0Message;
035    import org.granite.messaging.amf.process.AMF0MessageProcessor;
036    
037    /**
038     * @author Franck WOLFF
039     */
040    public class AMFMessageServlet extends HttpServlet {
041    
042        private static final long serialVersionUID = 1L;
043    
044        private static final Logger log = Logger.getLogger(AMFMessageServlet.class);
045    
046        @Override
047        protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
048            try {
049                GraniteContext context = GraniteContext.getCurrentInstance();
050                if (context == null)
051                    throw new ServletException(
052                        "No GraniteContext (" + AMFMessageFilter.class.getName() + " not configured in web.xml ?)");
053    
054                AMFContextImpl amf = (AMFContextImpl)context.getAMFContext();
055    
056                AMF0Message amf0Request = amf.getAMF0Request();
057    
058                log.debug(">> Processing AMF0 request: %s", amf0Request);
059    
060                AMF0Message amf0Response = AMF0MessageProcessor.process(amf0Request);
061    
062                log.debug("<< Returning AMF0 response: %s", amf0Response);
063    
064                amf.setAmf0Response(amf0Response);
065            } catch (Exception e) {
066                log.error(e, "AMF message error");
067                throw new ServletException(e);
068            }
069        }
070    }