org.restcomm.sbc.servlet.sip.SBCMessengerServlet.java Source code

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Here is the source code for org.restcomm.sbc.servlet.sip.SBCMessengerServlet.java

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/*******************************************************************************
 * TeleStax, Open Source Cloud Communications
 * Copyright 2011-2016, Telestax Inc, Eolos IT Corp and individual contributors
 * by the @authors tag.
 *
 * This program is free software: you can redistribute it and/or modify
 * under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation; either version 3 of
 * the License, or (at your option) any later version.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 */

package org.restcomm.sbc.servlet.sip;

import java.io.IOException;

import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.sip.SipFactory;
import javax.servlet.sip.SipServlet;
import javax.servlet.sip.SipServletRequest;
import javax.servlet.sip.SipServletResponse;

import org.apache.commons.configuration.Configuration;
import org.apache.log4j.Logger;
import org.restcomm.chain.processor.impl.SIPMutableMessage;
import org.restcomm.sbc.ConfigurationCache;
import org.restcomm.sbc.chain.impl.messenger.UpstreamMessengerProcessorChain;
import org.restcomm.sbc.chain.impl.messenger.DownstreamMessengerProcessorChain;

/**
 * @author  ocarriles@eolos.la (Oscar Andres Carriles)
 * @date    17 feb. 2017 18:24:27
 * @class   SBCMessengerServlet.java
 *
 */
public class SBCMessengerServlet extends SipServlet {
    private static final long serialVersionUID = 1L;
    private Configuration configuration;
    private SipFactory sipFactory;

    private UpstreamMessengerProcessorChain upChain;
    private DownstreamMessengerProcessorChain dwChain;

    private static transient Logger LOG = Logger.getLogger(SBCMessengerServlet.class);

    @Override
    public void init(ServletConfig servletConfig) throws ServletException {
        if (LOG.isInfoEnabled()) {
            LOG.info(">> Messenger Servlet init()");
        }
        super.init(servletConfig);
        sipFactory = (SipFactory) getServletContext().getAttribute(SIP_FACTORY);
        final ServletContext context = servletConfig.getServletContext();
        configuration = (Configuration) context.getAttribute(Configuration.class.getName());
        //ConfigurationCache.build(sipFactory, configuration);

        upChain = new UpstreamMessengerProcessorChain();
        LOG.info("Loading (v. " + upChain.getVersion() + ") " + upChain.getName());
        dwChain = new DownstreamMessengerProcessorChain();
        LOG.info("Loading (v. " + dwChain.getVersion() + ") " + dwChain.getName());

    }

    public void lazyStart() {

    }

    @Override
    protected void doMessage(SipServletRequest sipServletRequest) throws ServletException, IOException {
        upChain.process(new SIPMutableMessage(sipServletRequest));
    }

    /**
     * {@inheritDoc}
     */
    protected void doResponse(SipServletResponse sipServletResponse) throws ServletException, IOException {
        dwChain.process(new SIPMutableMessage(sipServletResponse));
        super.doResponse(sipServletResponse);
    }

    /**
     * {@inheritDoc}
     */
    protected void doErrorResponse(SipServletResponse sipServletResponse) throws ServletException, IOException {

    }

}