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Java EE 6 example source code file (TestServletContextListener.java)

This example Java EE 6 source code file (TestServletContextListener.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Java EE 6 tags/keywords

dynamicfilter, dynamicservlet, dynamicservlet, filterregistration, override, override, servlet, servletcontext, servletcontext, servletcontextlistener, servletcontextlistener, servletregistration, testservletcontextlistener, util

The Java EE 6 TestServletContextListener.java source code

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 1997-2009 Sun Microsystems, Inc. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
 * Sun designates this particular file as subject to the "Classpath" exception
 * as provided by Sun in the GPL Version 2 section of the License file that
 * accompanied this code.  If applicable, add the following below the License
 * Header, with the fields enclosed by brackets [] replaced by your own
 * identifying information: "Portions Copyrighted [year]
 * [name of copyright owner]"
 *
 * Contributor(s):
 *
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

package web.servlet.dynamicregistration_war;

import java.util.*;
import javax.servlet.*;

/**
 * ServletContextListener that registers a Servlet (with
 * name <tt>DynamicServlet) and Filter (with name 
 * <tt>DynamicFilter) in response to the contextInitialized
 * event.
 *
 * <p>The DynamicServlet is configured with an initialization
 * parameter and mapped to a URL pattern equal to <tt>/*.
 *
 * <p>The DynamicFilter is also configured with an initialization
 * parameter and mapped to the <tt>DynamicServlet such that it will
 * intercept any requests mapped to the <tt>DynamicServlet.
 *
 * @author Jan Luehe
 */
public class TestServletContextListener implements ServletContextListener {

    @Override
    public void contextInitialized(ServletContextEvent sce) {

        ServletContext sc = sce.getServletContext();

        // Register Servlet
        ServletRegistration sr = sc.addServlet("DynamicServlet",
            "web.servlet.dynamicregistration_war.TestServlet");
        sr.setInitParameter("servletInitName", "servletInitValue");
        sr.addMapping("/*");

        // Register Filter
        FilterRegistration fr = sc.addFilter("DynamicFilter",
            "web.servlet.dynamicregistration_war.TestFilter");
        fr.setInitParameter("filterInitName", "filterInitValue");
        fr.addMappingForServletNames(EnumSet.of(DispatcherType.REQUEST),
                                     true, "DynamicServlet");

        // Register ServletRequestListener
        sc.addListener("web.servlet.dynamicregistration_war.TestServletRequestListener");
    }   

    @Override
    public void contextDestroyed(ServletContextEvent sce) {  
        // Do nothing
    }
}

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