appserver/tests/appserv-tests/devtests/deployment/directorydeploy/ear/war/GreeterServlet.java

/*
 * Copyright (c) 2006, 2018 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package samples.ejb.stateless.simple.servlet;

import java.io.*;
import java.util.*;
import jakarta.servlet.*;
import javax.naming.*;
import jakarta.servlet.http.*;
import javax.rmi.PortableRemoteObject;
import jakarta.ejb.*;

import samples.ejb.stateless.simple.ejb.*;

/**
 * This servlet is responsible for throwing the html pages for the HelloWorld application.
 */
public class GreeterServlet extends HttpServlet {

   /**
    * The doGet method of the servlet. Handles all http GET request.
    * Required by the servlet specification.
    * @exception throws ServletException and IOException.
    */
   public void doGet (HttpServletRequest request,HttpServletResponse response)
        throws ServletException, IOException {

        jakarta.ejb.Handle beanHandle;
        Greeter myGreeterBean;
        GreeterHome myGreeterHome;
        Greeter myGreeterRemote;

        InitialContext initContext = null;
        Hashtable env = new java.util.Hashtable(1);
        ResourceBundle rb = ResourceBundle.getBundle("LocalStrings", Locale.getDefault());

        System.out.println("\n"+rb.getString("greeting_servlet")+ "...");

        System.out.println(rb.getString("retrieving_jndi"));
        try {
            initContext = new javax.naming.InitialContext();
        }
        catch (Exception e) {
          System.out.println(rb.getString("exception")+": " + e.toString());
          return;
        }

        try {
            System.out.println(rb.getString("looking_up"));
            String JNDIName = "java:comp/env/ejb/greeter";
            System.out.println(rb.getString("looking")+": " + JNDIName);
            Object objref = initContext.lookup(JNDIName);
            myGreeterHome = (GreeterHome)PortableRemoteObject.narrow(objref,
                                            GreeterHome.class);
        }
        catch(Exception e) {
          System.out.println(rb.getString("greeter_bean")+" - " +
           rb.getString("is_registered")+"?: " + e.toString());
        return;
        }
        try {
            System.out.println(rb.getString("creating"));
            myGreeterRemote = myGreeterHome.create();
        }
        catch(CreateException e) {
            System.out.println(rb.getString("could_not")+": "+
            e.toString());
            return;
        }

        System.out.println(rb.getString("getting"));
        String theMessage = myGreeterRemote.getGreeting();
        System.out.println(rb.getString("got")+": " + theMessage);

        System.out.println(rb.getString("storing"));
        request.setAttribute("message", theMessage);

        System.out.println(rb.getString("dispatching"));
        response.setContentType("text/html");
        RequestDispatcher dispatcher;
        dispatcher = getServletContext().getRequestDispatcher
         ("/GreeterView.jsp");
        dispatcher.include(request, response);
        return;
    }

   /**
    * The doPost method of the servlet. Handles all http POST request.
    * Required by the servlet specification.
    * @exception throws ServletException and IOException.
    */
    public void doPost (HttpServletRequest request,HttpServletResponse response)
    throws ServletException, IOException {
        doGet(request,response);
    }

   /**
    * Returns the servlet info as a String.
    * @return returns the servlet info as a String.
    */
    public String getServletInfo() {
        ResourceBundle rb = ResourceBundle.getBundle("LocalStrings", Locale.getDefault());
        return rb.getString("call")+".";
    }
}