SimpleServlet.java

package servlet;

import beans.MessageCheckerHome;
import beans.MessageChecker;

import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.ServletException;
import javax.naming.InitialContext;
import javax.rmi.PortableRemoteObject;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import javax.sql.DataSource;

public class SimpleServlet extends HttpServlet {


    public void doGet (HttpServletRequest request, HttpServletResponse response)
          throws ServletException, IOException {
      doPost(request, response);
    }

    /** handles the HTTP POST operation **/
    public void doPost (HttpServletRequest request,HttpServletResponse response)
          throws ServletException, IOException {
        doTest(request, response);
    }

    public String doTest(HttpServletRequest request, HttpServletResponse response) throws IOException {
        System.out.println("This is to test application-scoped-resources"); 

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

        String res = "NOT RUN";
        debug("doTest() ENTER...");
        boolean pass = false;
        try {
            res = "ALL TESTS PASSED";
            int testCount = 1;
            out.println("Starting the test");
            out.flush();

            testCount++;
            if (testAdminObject()) {
                out.println("TEST:PASS");
                System.out.println("Admin Object Resource - ResourceAdapterAssociation- " + testCount + " PASS");
            } else {
                out.println("TEST:FAIL");
                System.out.println("Admin Object Resource - ResourceAdapterAssociation- " + testCount + " FAIL");
            }

            try {
                InitialContext ic = new InitialContext();
                DataSource ds = (DataSource) ic.lookup("java:module/jdbc/web-level-ds");
                System.out.println("LOOKUP : java:module/jdbc/web-level-ds :  " + ds);
                out.println("TEST:PASS");
            } catch (Exception e) {
                e.printStackTrace();
                out.println("TEST:FAIL");
            }


            pass = getAndCloseConnection("java:module/jdbc/web-level-ds", 1);

            if (pass) {
                pass = getAndCloseConnection("java:module/jdbc/monitoring-ds", 10);
                if(pass){
                    out.println("TEST:PASS");
                }else{
                    out.println("TEST:FAIL");
                }
            } else {
                if(getAndCloseConnection("java:module/jdbc/monitoring-ds", 10)){
                    out.println("TEST:PASS");
                }else{
                    out.println("TEST:FAIL");
                }
            }

            while (!done(out)) {

                notifyAndWait(out);
                if (!done(out)) {
                    debug("Running...");
                    pass = checkResults(expectedResults(out), out);
                    debug("Got expected results = " + pass);

                    //do not continue if one test failed
                    if (!pass) {
                        res = "SOME TESTS FAILED";
                        System.out.println("ID application scoped resources test - " + testCount + " FAIL");
                        out.println("TEST:FAIL");

                    } else {
                        System.out.println("ID application scoped resources test - " + testCount + " PASS");
                        out.println("TEST:PASS");
                    }
                } else {
                    out.println("END_OF_EXECUTION");
                    break;
                }
            }
            out.println("END_OF_EXECUTION");


        } catch (Exception ex) {
            System.out.println("Importing transaction test failed.");
            ex.printStackTrace();
            res = "TEST FAILED";
            out.println("TEST:FAIL");
        } finally {
            out.println("END_OF_EXECUTION");
            out.flush();
        }
        System.out.println("application scoped resources test");


        debug("EXITING... STATUS = " + res);
        return res;
    }

    public boolean getAndCloseConnection(String resourceName, int count) {
        boolean pass = true;
        Connection conns[] = null;
        try {
            InitialContext ic = new InitialContext();
            DataSource ds = (DataSource) ic.lookup(resourceName);
            System.out.println("Looking up resource from Servlet : [ " + resourceName + " ]:  " + ds);

            conns = new Connection[count];
            for (int i = 0; i < count; i++) {
                conns[i] = ds.getConnection();
                System.out.println("Got connection in Servlet for resource: [ " + resourceName + " ]:  " + conns[i]);
            }
            pass = true;
        } catch (Exception e) {
            e.printStackTrace();
            pass = false;
        } finally {
            if (conns != null) {
                for (int i = 0; i < count; i++) {
                    try {
                        conns[i].close();
                        System.out.println("Closed connection in Servlet for resource: [ " + resourceName + " ]:  " + conns[i]);
                    } catch (Exception e) {
                        //do nothing
                    }
                }
            }
        }
        return pass;
    }

    private boolean testAdminObject() throws Exception {
        Object o = (new InitialContext()).lookup("java:comp/env/ejb/messageChecker");
        MessageCheckerHome home = (MessageCheckerHome)
            PortableRemoteObject.narrow(o, MessageCheckerHome.class);
        MessageChecker checker = home.create();
        return checker.testAdminObjectResourceAdapterAssociation();
    }

    private boolean checkResults(int num, PrintWriter out) throws Exception {
        out.println("checking results");
        out.flush();
        Object o = (new InitialContext()).lookup("java:comp/env/ejb/messageChecker");
        MessageCheckerHome home = (MessageCheckerHome)
            PortableRemoteObject.narrow(o, MessageCheckerHome.class);
        MessageChecker checker = home.create();
        int result = checker.getMessageCount();
        System.out.println("Expected num : " + num);
        System.out.println("Result got : " + result);

        return result == num;
    }

    private boolean done(PrintWriter out) throws Exception {
        out.println("Checking whether its completed");
        out.flush();
        Object o = (new InitialContext()).lookup("java:comp/env/ejb/messageChecker");
        MessageCheckerHome  home = (MessageCheckerHome)
            PortableRemoteObject.narrow(o, MessageCheckerHome.class);
        MessageChecker checker = home.create();
        return checker.done();
    }

    private int expectedResults(PrintWriter out) throws Exception {
        out.println("expectedResults");
        out.flush();
        Object o = (new InitialContext()).lookup("java:comp/env/ejb/messageChecker");
        MessageCheckerHome  home = (MessageCheckerHome)
            PortableRemoteObject.narrow(o, MessageCheckerHome.class);
        MessageChecker checker = home.create();
        return checker.expectedResults();
    }

    private void notifyAndWait(PrintWriter out) throws Exception {
        out.println("notifyAndWait");
        out.flush();
        Object o = (new InitialContext()).lookup("java:comp/env/ejb/messageChecker");
        MessageCheckerHome  home = (MessageCheckerHome)
            PortableRemoteObject.narrow(o, MessageCheckerHome.class);
        MessageChecker checker = home.create();
        checker.notifyAndWait();
    }


    private void debug(String msg) {
        System.out.println("[CLIENT]:: --> " + msg);
    }
}