Servlet.java

/*
 * Copyright 2002 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
package com.sun.s1asdev.ejb.ejb30.hello.session3;

import javax.annotation.Resource;
import javax.mail.MailSessionDefinition;
import javax.mail.MailSessionDefinitions;
import javax.ejb.EJB;
import javax.ejb.EJBException;
import javax.ejb.EJBs;
import javax.naming.InitialContext;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.transaction.UserTransaction;
import java.io.IOException;
import java.io.PrintWriter;

@EJB(name = "helloStateless3", beanInterface = Hello.class)
@EJBs({@EJB(name = "helloStateless4", beanName = "HelloEJB",
        beanInterface = Hello.class),
        @EJB(name = "helloStateful3", beanInterface = HelloStateful.class)})


@MailSessionDefinitions(
        value = {

                @MailSessionDefinition(description = "Mail Session Description 1",
                        name = "java:global/mail/MySession",
                        storeProtocol = "IMAP",
                        transportProtocol = "SMTP",
                        host = "localhost",
                        user = "naman",
                        password = "naman",
                        from = "naman.mehta@oracle.com",
                        properties = {"property1=10;property2=20"}
                ),

                @MailSessionDefinition(description = "Mail Session Description 3",
                        name = "java:app/mail/MySession",
                        storeProtocol = "IMAP",
                        transportProtocol = "SMTP",
                        host = "localhost",
                        user = "naman",
                        password = "naman",
                        from = "naman.mehta@oracle.com",
                        properties = {"property1=10;property2=20"}
                ),
                @MailSessionDefinition(description = "Mail Session Description 4",
                        name = "java:module/mail/MySession",
                        storeProtocol = "IMAP",
                        transportProtocol = "SMTP",
                        host = "localhost",
                        user = "naman",
                        password = "naman",
                        from = "naman.mehta@oracle.com",
                        properties = {"property1=10;property2=20"}
                ),
                @MailSessionDefinition(description = "Mail Session Description 5",
                        name = "java:global/env/Servlet_MailSession",
                        storeProtocol = "IMAP",
                        transportProtocol = "SMTP",
                        host = "localhost",
                        user = "naman",
                        password = "naman",
                        from = "naman.mehta@oracle.com",
                        properties = {"property1=10;property2=20"}
                ),
                @MailSessionDefinition(description = "Mail Session Description 5",
                        name = "java:app/env/Servlet_MailSession",
                        storeProtocol = "IMAP",
                        transportProtocol = "SMTP",
                        host = "localhost",
                        user = "naman",
                        password = "naman",
                        from = "naman.mehta@oracle.com",
                        properties = {"property1=10;property2=20"}
                )
        }
)
@WebServlet(name = "Servlet",
        urlPatterns = {"/servlet"}
)
public class Servlet extends HttpServlet {

    private
    @EJB
    Hello helloStateless;
    private
    @EJB(beanName = "HelloStatefulEJB")
    HelloStateful helloStateful;

    /*
        private Hello helloStateless2;
        private HelloStateful helloStateful2;

    */
    private
    @Resource
    UserTransaction ut;

    public void init(ServletConfig config) throws ServletException {

        super.init(config);
        System.out.println("In Mail-Session-Test::servlet... init()");
    }

    public void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

        resp.setContentType("text/html");
        PrintWriter out = resp.getWriter();

        try {

            InitialContext ic = new InitialContext();

            boolean global = lookupMailSession("java:global/mail/MySession", true);

            boolean app = lookupMailSession("java:app/mail/MySession", true);

            boolean module = lookupMailSession("java:module/mail/MySession", true);

            boolean globalHelloSfulEJB = lookupMailSession("java:global/mail/HelloStatefulEJB_MailSession", true);

            boolean appHelloStatefulEjb = lookupMailSession("java:app/mail/HelloStatefulEJB_MailSession", true);

            boolean globalHelloEJB = lookupMailSession("java:global/mail/HelloEJB_MailSession", true);

            boolean moduleHelloEjb = lookupMailSession("java:module/mail/HelloEJB_MailSession", false);

            boolean globalServlet_MS_MailSession = lookupMailSession("java:global/mail/Servlet_MS_MailSession", true);

            boolean globalHelloStateful_MS_MailSession = lookupMailSession("java:global/mail/HelloStatefulEJB_MS_MailSession", true);

            boolean globalHello_MS_MailSession = lookupMailSession("java:global/mail/HelloEJB_MS_MailSession", true);

            if (global && app && globalHelloSfulEJB && globalServlet_MS_MailSession && globalHelloEJB && globalHelloStateful_MS_MailSession
                    && globalHello_MS_MailSession && appHelloStatefulEjb && !moduleHelloEjb && module) {
                System.out.println("Servlet successful lookup of mail-sessions !");
            } else {
                throw new RuntimeException("Servlet failure ");
            }


            System.out.println("beginning tx");
            ut.begin();

            // invoke method on the EJB
            System.out.println("invoking stateless ejb");
            helloStateless.hello();

            System.out.println("committing tx");
            ut.commit();
            System.out.println("committed tx");


            System.out.println("invoking stateless ejb");
            helloStateful.hello();

            System.out.println("successfully invoked ejbs");

            System.out.println("accessing connections");
            try {
                MyThread thread = new MyThread(helloStateful);
                thread.start();

                sleepFor(2);
                helloStateful.ping();
                //throw new EJBException("Did not get ConcurrentAccessException");
            } catch (javax.ejb.ConcurrentAccessException conEx) {
                ;   //Everything is fine
            } catch (Throwable th) {
                throw new EJBException("Got some wierd exception: " + th);
            }

            System.out.println("successfully accessed mail-session definitions");

            out.println("<HTML> <HEAD> <TITLE> JMS Servlet Output </TITLE> </HEAD> <BODY BGCOLOR=white>");
            out.println("<CENTER> <FONT size=+1 COLOR=blue>DatabaseServlet :: All information I can give </FONT> </CENTER> <p> ");
            out.println("<FONT size=+1 color=red> Context Path :  </FONT> " + req.getContextPath() + "<br>");
            out.println("<FONT size=+1 color=red> Servlet Path :  </FONT> " + req.getServletPath() + "<br>");
            out.println("<FONT size=+1 color=red> Path Info :  </FONT> " + req.getPathInfo() + "<br>");
            out.println("</BODY> </HTML> ");

        } catch (Exception ex) {
            ex.printStackTrace();
            System.out.println("Mail-Session-Test servlet test failed");
            throw new ServletException(ex);
        }
    }


    public void destroy() {
        System.out.println("in Mail-Session-Test client::servlet destroy");
    }

    class MyThread extends Thread {
        HelloStateful ref;

        MyThread(HelloStateful ref) {
            this.ref = ref;
        }

        public void run() {
            try {
                ref.sleepFor(2);
            } catch (Throwable th) {
                throw new RuntimeException("Could not invoke waitfor() method");
            }
        }
    }


    private void sleepFor(int sec) {
        try {
            for (int i = 0; i < sec; i++) {
                Thread.currentThread().sleep(1000);
                System.out.println("[" + i + "/" + sec + "]: Sleeping....");
            }
        } catch (Exception ex) {
        }
    }

    private boolean lookupMailSession(String mailSessionName, boolean expectSuccess) {
        try {
            InitialContext ic = new InitialContext();
            Object ds = ic.lookup(mailSessionName);
            return true;
        } catch (Exception e) {
            if (expectSuccess) {
                e.printStackTrace();
            }
            return false;
        }
    }


}