AnnotatedServlet.java

/*
 * 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.mobicents.servlet.sip.testsuite;

import java.io.IOException;
import java.util.Properties;

import javax.annotation.Resource;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.sip.SipApplicationSession;
import javax.servlet.sip.SipFactory;
import javax.servlet.sip.SipServlet;
import javax.servlet.sip.SipServletContextEvent;
import javax.servlet.sip.SipServletListener;
import javax.servlet.sip.SipServletRequest;
import javax.servlet.sip.SipServletResponse;
import javax.servlet.sip.SipSessionsUtil;
import javax.servlet.sip.TimerService;
import javax.servlet.sip.annotation.SipApplicationKey;
import javax.servlet.sip.annotation.SipListener;

import org.apache.log4j.Logger;
import org.mobicents.servlet.sip.annotation.ConcurrencyControlMode;


@SipListener
@javax.servlet.sip.annotation.SipServlet(loadOnStartup=1)
public class AnnotatedServlet extends SipServlet implements SipServletListener {
	private static final long serialVersionUID = 1L;
	@Resource
	SipFactory sipFactory;
	@Resource
	SipSessionsUtil sipSessionsUtil;
	@Resource
	TimerService timerService;
	
	private static transient Logger logger = Logger.getLogger(AnnotatedServlet.class);

	@Override
	public void init(ServletConfig servletConfig) throws ServletException {		
		super.init(servletConfig);
		logger.info("the simple sip servlet has been started");
		logger.info("SipFactory injected resource " + sipFactory);
		logger.info("SipSessionsUtil injected resource " + sipSessionsUtil);
		logger.info("TimerService injected resource " + timerService);
		if(sipFactory == null || sipSessionsUtil == null || timerService == null) {
			throw new ServletException("Impossible to get one of the annotated resource");
		}		
		SipFactory sipFactoryJndi;
		SipSessionsUtil sipSessionsUtilJndi;
		TimerService timerServiceJndi;
		try { 			
			// Getting the Sip factory from the JNDI Context
			Properties jndiProps = new Properties();			
			Context initCtx = new InitialContext(jndiProps);
			Context envCtx = (Context) initCtx.lookup("java:comp/env");
			sipFactoryJndi = (SipFactory) envCtx.lookup("sip/org.mobicents.servlet.sip.testsuite.AnnotatedApplication/SipFactory");
			sipSessionsUtilJndi = (SipSessionsUtil) envCtx.lookup("sip/org.mobicents.servlet.sip.testsuite.AnnotatedApplication/SipSessionsUtil");
			timerServiceJndi = (TimerService) envCtx.lookup("sip/org.mobicents.servlet.sip.testsuite.AnnotatedApplication/TimerService");
			logger.info("SipFactory injected resource" + sipFactory);
			logger.info("SipSessionsUtil injected resource" + sipSessionsUtil);
			logger.info("TimerService injected resource" + timerService);
			logger.info("Sip Factory ref from JNDI : " + sipFactory);
		} catch (NamingException e) {
			throw new ServletException("Uh oh -- JNDI problem !", e);
		}
		if(sipFactoryJndi == null || sipSessionsUtilJndi == null || timerServiceJndi == null) {
			throw new ServletException("Impossible to get one of the annotated resource");
		}		
	}

	/**
	 * {@inheritDoc}
	 */
	protected void doInvite(SipServletRequest request) throws ServletException,
			IOException {

		logger.info("Got request: "
				+ request.getMethod());
		SipServletResponse sipServletResponse = request.createResponse(SipServletResponse.SC_RINGING);
		sipServletResponse.send();
		sipServletResponse = request.createResponse(SipServletResponse.SC_OK);
		sipServletResponse.send();
		
		// End the scenario by sending a message to the Tracker.
		logger.info("SipFactory injected resource" + sipFactory);
		logger.info("SipSessionsUtil injected resource" + sipSessionsUtil);
		logger.info("TimerService injected resource" + timerService);
		try {
			SipApplicationSession appSession = 
        	sipFactory.createApplicationSession(); // Injected factory
        	SipServletRequest req = sipFactory.createRequest(appSession,
        		"INVITE", "sip:from@127.0.0.1:5070", "sip:to@127.0.0.1:5058");
        	req.send();
        } catch (Exception e) {
        	e.printStackTrace();
        }
	}

	/**
	 * {@inheritDoc}
	 */
	protected void doBye(SipServletRequest request) throws ServletException,
			IOException {

		logger.info("Got BYE request: " + request);
		SipServletResponse sipServletResponse = request.createResponse(SipServletResponse.SC_OK);
		sipServletResponse.send();
	}	

	// SipErrorListener methods
	
	public void servletInitialized(SipServletContextEvent ce) {
		ConcurrencyControlMode concurrencyControlMode = (ConcurrencyControlMode)ce.getServletContext().getAttribute(ConcurrencyControlMode.class.getCanonicalName());
		logger.info("concurrency control mode set to " + concurrencyControlMode);
		if(!ConcurrencyControlMode.SipApplicationSession.equals(concurrencyControlMode)) {
			throw new IllegalArgumentException("@ConcurrencyControl annotation badly parsed");
		}
		try {

			SipFactory sipFactory = (SipFactory) ce.getServletContext().getAttribute(SIP_FACTORY);
			SipApplicationSession appSession = 
        	sipFactory.createApplicationSession();
        	SipServletRequest req = sipFactory.createRequest(appSession,
        		"INVITE", "sip:from@127.0.0.1:5070", "sip:to@127.0.0.1:5070");
        	req.send();
        } catch (Exception e) {
        	e.printStackTrace();
        }
	}
	
	@Override
	protected void doSuccessResponse(SipServletResponse response)
			throws ServletException, IOException {
		logger.info("Got response: " + response);
		response.createAck().send();				
	}
	
	@SipApplicationKey
	public static String key(SipServletRequest request) {
		return "working";
	}
}