The UniversalClient example is a basic 'client' application that uses the JMS 1.1 APIs : Java Message Service JMS « J2EE « Java






The UniversalClient example is a basic 'client' application that uses the JMS 1.1 APIs

 
/*
 * @(#)SimpleChat.java  1.10 04/01/05
 *
 * Copyright (c) 2000-2002 Sun Microsystems, Inc. All Rights Reserved.
 *
 * Sun grants you ("Licensee") a non-exclusive, royalty free, license to use,
 * modify and redistribute this software in source and binary code form,
 * provided that i) this copyright notice and license appear on all copies of
 * the software; and ii) Licensee does not utilize the software in a manner
 * which is disparaging to Sun.
 *
 * This software is provided "AS IS," without a warranty of any kind. ALL
 * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY
 * IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
 * NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE
 * LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING
 * OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS
 * LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT,
 * INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER
 * CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF
 * OR INABILITY TO USE SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 *
 * This software is not designed or intended for use in on-line control of
 * aircraft, air traffic, aircraft navigation or aircraft communications; or in
 * the design, construction, operation or maintenance of any nuclear
 * facility. Licensee represents and warrants that it will not use or
 * redistribute the Software for such purposes.
 */


================================================================================
@(#)README  1.1 06/01/05
================================================================================

UniversalClient example

Description
-----------
The UniversalClient example is a basic 'client' application that uses the JMS 1.1 APIs.
It uses JMS Message Producer and Consumer to send and receive message.
UniversalClient.java does not use JNDI and relies on
the feature by which a broker can "auto-create" the destinations 
desired by the user. The bulk of the application deals with the 
user interface and the JMS related code is fairly straightforward.


Files
-----
UniversalClient.java    Source file for this example.
*.class      Prebuilt Java class files for this example.
README      This file.

Configuring the environment
---------------------------
To recompile or run this example, you need to set CLASSPATH
to include at least:
    jms.jar
    imq.jar
    directory containing this example

A detailed guideline on setting CLASSPATH is found in the README
file in the jms demo subdirectory as well as in the "Quick Start
Tutorial" in the Sun Java(tm) System Message Queue Developer's Guide.

The following are examples for setting CLASSPATH on the different
platforms. These commands are run from the directory containing
this example.

On Solaris:
    setenv CLASSPATH /usr/share/lib/jms.jar:/usr/share/lib/imq.jar:.

On Windows:
    set CLASSPATH=%IMQ_HOME%\lib\jms.jar;%IMQ_HOME%\lib\imq.jar;.

On Linux:
    setenv CLASSPATH /opt/sun/mq/share/lib/jms.jar:
  /opt/sun/mq/share/lib/imq.jar:.

#####hpux-dev#####
On HP-UX:
export CLASSPATH=/opt/sun/mq/share/lib/jms.jar:
           /opt/sun/mq/share/lib/imq.jar:.

Note that it is assumed that the above export command is run on
BASH shell


Building the example
--------------------
Run the following:

    javac UniversalClient.java

Running the example
-------------------
Run the following:

    java UniversalClient

The application comes up not connected to any jms session. 
To connect to  a broker, bring down the "Actions" menu and
select the "Connect ..." menu item. A dialog will appear to
provide broker hostname, port, username, password, clientID
etc

To disconnect from a given broker host: port bring down the
"Actions" menu and select the "Disconnect" menu item

Once the application is connected, one can send message using
a message producer. To create a producer bring down the "Actions" 
menu and select the "Send Message..." menu item. The Send Message
dialog box will come up, where destination name,type and message 
size,ttl etc can be specified while sending message.

To stop message sender bring down the "Actions" menu and select
the "Stop Message Sender" menu item

To receive message bring down the "Actions" menu and select the
"Receive Message..." menu item. The receive message dialog box
will come up where destination name, message consumer type and
message selector can be specified.

To stop message receiver bring down the "Actions" menu and select
the "Stop Message Receiver" menu item.

The received message are displayed on a Message Table. To see the
details of a message double click on a row of a message table or
select a row of a message table and click on "Message Details" button.

To start auto scrolling of message table i.e to always see the last
message received, drag the message table vertical scroll bar at the
bottom. To stop auto scrolling drag the message table vertical scroll
bar else where.

To clear existing messages in the message table bring down the "Actions"
menu and select the "Clear Messages" menu item.

The status bar at the bottom shows Message Queue Client Runtime
Connection Notification And Connection related log


To exit from the application, bring down the "console" menu and
click "exit"

/*
 * @(#)SimpleChat.java  1.10 04/01/05
 *
 * Copyright (c) 2000-2002 Sun Microsystems, Inc. All Rights Reserved.
 *
 * Sun grants you ("Licensee") a non-exclusive, royalty free, license to use,
 * modify and redistribute this software in source and binary code form,
 * provided that i) this copyright notice and license appear on all copies of
 * the software; and ii) Licensee does not utilize the software in a manner
 * which is disparaging to Sun.
 *
 * This software is provided "AS IS," without a warranty of any kind. ALL
 * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY
 * IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
 * NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE
 * LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING
 * OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS
 * LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT,
 * INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER
 * CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF
 * OR INABILITY TO USE SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 *
 * This software is not designed or intended for use in on-line control of
 * aircraft, air traffic, aircraft navigation or aircraft communications; or in
 * the design, construction, operation or maintenance of any nuclear
 * facility. Licensee represents and warrants that it will not use or
 * redistribute the Software for such purposes.
 */



//package examples.applications.uclient;

import com.sun.messaging.jms.notification.ConnectionReconnectedEvent;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Frame;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.Label;
import java.awt.Rectangle;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionAdapter;
import java.awt.event.MouseMotionListener;

import java.io.ByteArrayInputStream;
import java.io.IOException;

import java.text.Format;
import java.text.NumberFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;

import java.util.Arrays;
import java.util.Date;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
import java.util.StringTokenizer;

import javax.jms.BytesMessage;
import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.DeliveryMode;
import javax.jms.Destination;
import javax.jms.ExceptionListener;
import javax.jms.JMSException;
import javax.jms.MapMessage;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.ObjectMessage;
import javax.jms.Queue;
import javax.jms.ResourceAllocationException;
import javax.jms.Session;
import javax.jms.StreamMessage;
import javax.jms.TextMessage;
import javax.jms.Topic;
import javax.jms.TransactionRolledBackException;

import javax.swing.BorderFactory;
import javax.swing.DefaultComboBoxModel;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JProgressBar;
import javax.swing.JScrollBar;
import javax.swing.JScrollPane;
import javax.swing.JSeparator;
import javax.swing.JSplitPane;
import javax.swing.JTable;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.KeyStroke;
import javax.swing.SwingConstants;
import javax.swing.UIManager;
import javax.swing.border.EtchedBorder;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableColumn;
import javax.swing.text.AttributeSet;
import javax.swing.text.BadLocationException;
import javax.swing.text.Document;
import javax.swing.text.PlainDocument;


/**
 * The UniversalClient example is a basic 'client' application that uses the JMS 1.1 APIs.
 * It uses JMS Message Producer and Consumer to send and receive message.
 *
 * When the application is launched, use the 'Universal Client'Actions menu to start or connect to
 * a boker.
 *
 * The broker host port can be provided using the GUI. Once the client is connected one can send
 * jms messages to any number of destination Topic or Queue.
 *
 * Once the Producer send messages to a destination of the given boker,
 * one can create a consumer for the same destination which receives the messages
 * and display them in a Message Table.
 *
 * For destination of type Queue one can simply receive message either by using transacted session
 * or by using non-transacted session
 *
 * For topic type destination the one can create a durable Topic subscriber for a given
 * topic with a given selector. One can receive message using the topic subscriber created during the
 * first receive message button click, but if at later stage one changes the topic selector or the
 * transaction type a new durable topic selector is created
 *
 *
 * One can see the details of the message received, by using the 'Message Details' button.
 *
 *
 * @author Sujit Biswas
 */
public class UniversalClient implements UniversalClientConstants,
    ExceptionListener {
    // Connection, factory and session..
    private ConnectionFactory myConnFactory;
    private Connection myConn;
    private Session myProducerSession;
    private Session myConsumerSession;
    private MessageProducer myProducer;
    private MessageConsumer myConsumer;
    private Destination myDestination;
    private boolean connected = false;

    //data structures
    private HashMap mySessionMap = new HashMap();
    private HashMap myProducerMap = new HashMap();

    //username, hostname
    private String userName;
    private String password;
    private String hostName = "localhost";
    private String clientID;
    private int port = 7676;

    // main frame
    private JFrame frame;

    //MenuBar and MenuItems
    private JMenuBar menuBar;
    private JMenuItem connectItem;
    private JMenuItem disconnectItem;
    private JMenuItem clearItem;
    private JMenuItem exitItem;
    private JMenuItem sendMsgItem;
    private JMenuItem sendMsgStopItem;
    private JMenuItem rcvMsgItem;
    private JMenuItem rcvMsgStopItem;

    //connection dialog box
    private ConnectionDialogBox connDialogB;
    private JButton connectB;
    private JButton connCancelB;

    //send message dialog box
    private SendMessageDialogBox sendMsgDialogB;
    private JButton sendMsgB;
    private JButton sendMsgCancelB;

    //Footer  panel
    private JPanel footerPanel;
    private JLabel footerLabel;
    private boolean footerInUse;

    //message table to show the received message
    private JTable msgTable;
    private JScrollPane msgTableScrollPane;
    private boolean scrollingON;

    //top panel
    private double msgProductionRate;
    private JPanel topPanel;
    private JLabel msgProductionRateLabel;
    private JLabel hostPortLabel;
    private JLabel clientIDLabel;
    private JProgressBar sendMsgProgressBar = new JProgressBar();

    //Message details frame
    private JFrame detailsFrame;
    private PropertyPanel msgDetailsHeaderPanel;
    private PropertyPanel msgDetailsPropertyPanel;
    private PropertyPanel msgDetailsBodyPanel;

    //receive messages dialog box
    private ReceiveMessageDialogBox receiveMsgDialogB;
    private JButton receiveMsgB;
    private JButton receiveMsgCancelB;

    //status area
    StatusArea statusArea;

    //stop msg sender
    private boolean msgSenderStopped;

    //  stop msg receiver
    private boolean msgReceiverStopped;

    public UniversalClient() {
        userName = "guest";
        password = "guest";

        clientID = System.getProperty("universalclient.cid", null);

        if (clientID == null) {
            clientID = System.getProperty("user.name", "UClient-ID");
        }

        createAndShowGUI();

        Thread statusReporter = new StatusReportingThread();
        statusReporter.setPriority(Thread.MIN_PRIORITY);
        statusReporter.setDaemon(true);
        statusReporter.start();
    }

    /**
     * Create the GUI and show it. For thread safety, this method should be
     * invoked from the event-dispatching thread.
     */
    private void createAndShowGUI() {
        try {
            UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());
        } catch (Exception e) {
            e.printStackTrace();
        }

        //Make sure we have nice window decorations.
        //JFrame.setDefaultLookAndFeelDecorated(true);
        //Create and set up the window.
        frame = new JFrame(title);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.getContentPane().setLayout(new BorderLayout());

        //create Menubar
        menuBar = createMenuBar();
        frame.setJMenuBar(menuBar);

        //Add the top panel
        topPanel = createTopPanel();
        frame.getContentPane().add(topPanel, BorderLayout.NORTH);

        //create message table panel
        JPanel tablePanel = createTablePanel();

        //create footer Panel
        createFooterPanel();

        //add footer to message table
        tablePanel.add(footerPanel, BorderLayout.SOUTH);

        //create status area
        statusArea = new StatusArea();
        statusArea.appendText(
            "# Message Queue Client Runtime Connection Notification And Connection related log");

        /*
         * Create another split pane containing the table panel above
         * and the status area.
         */
        JSplitPane splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT);
        splitPane.setOneTouchExpandable(true);
        splitPane.setTopComponent(tablePanel);
        splitPane.setBottomComponent(statusArea);
        splitPane.setResizeWeight(0.9);

        frame.getContentPane().add(splitPane, BorderLayout.CENTER);

        //set size of mainframe
        setSize();

        //Display the window.
        frame.setVisible(true);
    }

    /**
     * sets the size of the main frame
     */
    private void setSize() {
        int relativeSize = 10; //with base = 15
        String osName = System.getProperty("os.name", "");

        if (osName.indexOf("Windows") >= 0) {
            relativeSize = 12;
        }

        Toolkit tk = frame.getToolkit();
        Dimension d = tk.getScreenSize();
        frame.setSize((d.width * relativeSize) / 15,
            (d.height * relativeSize) / 15);
        frame.setLocation(d.width / 8, d.height / 16);
    }

    /**
     * Create menubar for application.
     */
    private JMenuBar createMenuBar() {
        JMenuBar mb = new JMenuBar();

        JMenu consoleMenu = (JMenu) mb.add(new JMenu("Universal Client"));
        consoleMenu.setMnemonic('C');

        JMenu actionsMenu = (JMenu) mb.add(new JMenu("Actions"));
        actionsMenu.setMnemonic('A');

        connectItem = addMenuItem(actionsMenu, "Connect ...");
        connectItem.setMnemonic('C');
        disconnectItem = addMenuItem(actionsMenu, "Disconnect");
        disconnectItem.setMnemonic('D');
        actionsMenu.add(new JSeparator());

        sendMsgItem = addMenuItem(actionsMenu, "Send Message ...");
        sendMsgItem.setMnemonic('M');
        sendMsgStopItem = addMenuItem(actionsMenu, "Stop Msg Sender");
        sendMsgStopItem.setMnemonic('S');
        actionsMenu.add(new JSeparator());

        rcvMsgItem = addMenuItem(actionsMenu, "Receive Message ...");
        rcvMsgItem.setMnemonic('R');
        rcvMsgStopItem = addMenuItem(actionsMenu, "Stop Msg Receiver");
        rcvMsgStopItem.setMnemonic('t');
        actionsMenu.add(new JSeparator());

        clearItem = addMenuItem(actionsMenu, "Clear Messages");
        clearItem.setMnemonic('e');

        exitItem = addMenuItem(consoleMenu, "Exit");
        exitItem.setMnemonic('x');
        exitItem.setAccelerator(KeyStroke.getKeyStroke('Q', 2));

        disconnectItem.setEnabled(false);

        connectItem.addActionListener(new ConnectionPopUpListener());
        disconnectItem.addActionListener(new DisConnectionListener());

        sendMsgItem.addActionListener(new SendMessagePopUpListener());
        sendMsgItem.setEnabled(false);

        sendMsgStopItem.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    setMsgSenderStopped(true);
                }
            });
        sendMsgStopItem.setEnabled(false);

        rcvMsgItem.addActionListener(new ReceiveMessagePopUpListener());
        rcvMsgItem.setEnabled(false);

        rcvMsgStopItem.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    stopMsgReceiver();
                }
            });
        rcvMsgStopItem.setEnabled(false);

        clearItem.addActionListener(new ClearMessageListener());

        exitItem.addActionListener(new ExitListener());

        return (mb);
    }

    /**
     * adds menu item to menu
     */
    private JMenuItem addMenuItem(JMenu menu, String itemStr) {
        JMenuItem item = (JMenuItem) menu.add(newJMenuItem(itemStr));

        return item;
    }

    /**
     * returns a new JMenuItem
     */
    private JMenuItem newJMenuItem(String s) {
        JMenuItem jmi = new JMenuItem(s);

        return jmi;
    }

    /**
     * create table Panel  for message received
     */
    private JPanel createTablePanel() {
        JPanel tPanel = new JPanel();
        tPanel.setLayout(new BorderLayout());

        msgTable = new JTable(new MsgTable());
        msgTable.addMouseListener(new TableMouseListener());

        TableColumn column = msgTable.getColumnModel().getColumn(1);
        column.setPreferredWidth(125);
        column = msgTable.getColumnModel().getColumn(2);
        column.setPreferredWidth(85);
        column = msgTable.getColumnModel().getColumn(3);
        column.setPreferredWidth(95);

        column = msgTable.getColumnModel().getColumn(4);
        column.setPreferredWidth(15);
        column = msgTable.getColumnModel().getColumn(5);
        column.setPreferredWidth(15);
        column = msgTable.getColumnModel().getColumn(6);
        column.setPreferredWidth(40);

        msgTableScrollPane = new JScrollPane(msgTable);
        msgTableScrollPane.setAutoscrolls(true);

        MouseMotionListener doScrollRectToVisible = new MouseMotionAdapter() {
                public void mouseDragged(MouseEvent e) {
                    Rectangle r = new Rectangle(e.getX(), e.getY(), 1, 1);
                    ((JScrollBar) e.getSource()).scrollRectToVisible(r);

                    int maxHeight = msgTable.getVisibleRect().height;

                    if (e.getY() > (maxHeight - 30)) {
                        setScrollingON(true);
                    } else {
                        setScrollingON(false);
                    }
                }
            };

        msgTableScrollPane.getVerticalScrollBar().addMouseMotionListener(doScrollRectToVisible);
        msgTableScrollPane.getVerticalScrollBar().setToolTipText("Drag to Bottom to Start auto scroll, to Stop autoscroll Drag else where");

        tPanel.add(new JLabel("Received Message Table", SwingConstants.CENTER),
            BorderLayout.NORTH);
        tPanel.add(msgTableScrollPane, BorderLayout.CENTER);
        tPanel.setBorder(BorderFactory.createEtchedBorder(EtchedBorder.RAISED));

        return tPanel;
    }

    /**
     * create top Panel  for production related statistics
     */
    private JPanel createTopPanel() {
        msgProductionRate = Double.NaN;
        topPanel = new JPanel(new BorderLayout());
        topPanel.setBorder(BorderFactory.createEtchedBorder(EtchedBorder.RAISED));

        JLabel l = new JLabel("Connection & Message Production",
                SwingConstants.CENTER);
        l.setBorder(BorderFactory.createEtchedBorder(EtchedBorder.LOWERED));

        topPanel.add(BorderLayout.NORTH, l);

        JPanel dummyP = new JPanel(new BorderLayout());

        clientIDLabel = new JLabel();
        msgProductionRateLabel = new JLabel();
        hostPortLabel = new JLabel();

        dummyP.add(BorderLayout.NORTH, clientIDLabel);
        dummyP.add(BorderLayout.CENTER, hostPortLabel);
        dummyP.add(BorderLayout.SOUTH, msgProductionRateLabel);

        topPanel.add(BorderLayout.WEST, dummyP);

        setClientID();
        setMsgProductionRate("Not Available");
        setHostPort("Client Not Connected");

        dummyP = new JPanel(new BorderLayout());

        setSendMsgProgressBar(0, "");

        dummyP.add(BorderLayout.CENTER, sendMsgProgressBar);
        topPanel.add(BorderLayout.SOUTH, dummyP);
        topPanel.setPreferredSize(new Dimension(0, 95));

        return topPanel;
    }

    /**
     * Main
     */
    public static void main(String[] args) {
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
                public void run() {
                    UniversalClient uc = new UniversalClient();
                }
            });
    }

    /**
     * shows connection dialog box to connect to a broker
     */
    private void popUpConnDialogBox() {
        if (connDialogB == null) {
            connDialogB = new ConnectionDialogBox(frame);
            connectB = connDialogB.getConnectButton();

            connectB.addActionListener(new ConnectionListener());
            connCancelB = connDialogB.getCancelButton();

            connCancelB.addActionListener(new ActionListener() {
                    public void actionPerformed(ActionEvent e) {
                        connDialogB.setVisible(false);
                    }
                });
        }

        connDialogB.setUserName(userName);
        connDialogB.setPassword(password);
        connDialogB.setClientID(clientID);
        connDialogB.setVisible(true);
    }

    /**
     * shows Send Message dialog box for sending one or more message
     */
    private void popUpSendMessageDialogBox() {
        if (sendMsgDialogB == null) {
            sendMsgDialogB = new SendMessageDialogBox(frame);

            sendMsgB = sendMsgDialogB.getSendButton();
            sendMsgB.addActionListener(new SendMessageListener());

            sendMsgCancelB = sendMsgDialogB.getCancelButton();
            sendMsgCancelB.addActionListener(new ActionListener() {
                    public void actionPerformed(ActionEvent e) {
                        sendMsgDialogB.setVisible(false);
                    }
                });
        }

        sendMsgDialogB.setVisible(true);
    }

    /**
     * shows Receive Message dialog box for receiving one or more message
     */
    private void popUpReceiveMessageDialogBox() {
        if (receiveMsgDialogB == null) {
            receiveMsgDialogB = new ReceiveMessageDialogBox(frame);

            receiveMsgB = receiveMsgDialogB.getReceiveButton();
            receiveMsgB.addActionListener(new ReceiveMessageListener());

            receiveMsgCancelB = receiveMsgDialogB.getCancelButton();
            receiveMsgCancelB.addActionListener(new ActionListener() {
                    public void actionPerformed(ActionEvent e) {
                        receiveMsgDialogB.setVisible(false);
                    }
                });
        }

        receiveMsgDialogB.setVisible(true);
    }

    /**
     * Connect to a broker given a host port, createConnection method
     * Performs the actual connect.
     */
    private void doConnect() {
        if (connected()) {
            return;
        }

        if (createConnection() == false) {
            errorMessage("Unable to create A session.  " +
                "Please verify a broker is running");

            return;
        }

        setUpUIAfterConnection();
        printToStatusArea("Successfully Connected to " + getHostName() + ":" +
            getPort());
    }

    /**
     * setup UI and other flags once a connection is either
     * by user or MQ client runtime auto reconnect
     *
     */
    private void setUpUIAfterConnection() {
        setConnected(true);
        connectItem.setEnabled(false);
        disconnectItem.setEnabled(true);
        sendMsgItem.setEnabled(true);
        rcvMsgItem.setEnabled(true);
        connDialogB.setVisible(false);
        setClientID();

        setFooter("Connected to " + getHostName() + ":" + getPort());
        setHostPort(getHostName() + ":" + getPort());
    }

    /**
     * creates the actual connection a broker
     */
    private boolean createConnection() {
        try {
            setHostName(connDialogB.getHost());
            setPort(connDialogB.getPort());

            //this is required in case the MQ client runtime is trying to do a auto reconnect
            if (myConn != null) {
                myConn.close();
            }

            myConnFactory = new com.sun.messaging.ConnectionFactory();

            Properties props = getConnFactoryConfig();
            UniversalClientUtility.setConnFactoryProperties((com.sun.messaging.ConnectionFactory) myConnFactory,
                props);

            ((com.sun.messaging.ConnectionFactory) myConnFactory).setProperty(com.sun.messaging.ConnectionConfiguration.imqBrokerHostName,
                getHostName());
            ((com.sun.messaging.ConnectionFactory) myConnFactory).setProperty(com.sun.messaging.ConnectionConfiguration.imqBrokerHostPort,
                String.valueOf(getPort()));
            ((com.sun.messaging.ConnectionFactory) myConnFactory).setProperty(com.sun.messaging.ConnectionConfiguration.imqConfiguredClientID,
                String.valueOf(getClientID()));

            myConn = myConnFactory.createConnection(getUserName(), getPassword());

            //construct a MQ event listener, the listener implements com.sun.messaging.jms.notification.EventListener interface.
            com.sun.messaging.jms.notification.EventListener eListener = new ConnectionEventListener();

            //set event listener to the MQ connection.
            ((com.sun.messaging.jms.Connection) myConn).setEventListener(eListener);
            myConn.setExceptionListener(this);
            myConn.start();

            return true;
        } catch (Exception e) {
            errorMessage("Caught Exception: " + e);
            showErrorDialog(e, "Connection Error");

            //e.printStackTrace();
            return false;
        }
    }

    /**
     * responsible for creating and sending message when one clicks on the
     * send message button of Send Message dialog box. If a Message Producer does not
     * exist for a given destination creates a new one for sending messages.
     */
    private void doSendMessage() {
        if (!connected()) {
            errorMessage("Unable to send Message.  " +
                "Please verify a broker is running");

            return;
        }

        sendMsgDialogB.setVisible(false);

        try {
            boolean isTransacted = sendMsgDialogB.isTransacted();
            int destType = sendMsgDialogB.getDestinationType();
            String destName = sendMsgDialogB.getDestinationName();
            myProducerSession = getProducerSession(isTransacted);

            myDestination = createDestination(destType, destName,
                    myProducerSession);
            myProducer = getProducer(myDestination, isTransacted);

            if (sendMsgDialogB.getDeliveryMode() == DELIVERY_MODE_NON_PERSISTENT) {
                myProducer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
            }

            //start a message sender thread
            Thread msgSender = new MessageSenderThread();
            msgSender.start();
        } catch (Exception e) {
            errorMessage("Unable to send message:" + e.getMessage());
            showErrorDialog(e, "Create Destination Error");
            doDisconnect();
        }
    }

    /**
     *  get Message Consumer for a given destination topic or queue
     */
    private MessageConsumer getConsumer(Destination dest, int destType,
        boolean isTransacted, Session s, String selector)
        throws JMSException {
        MessageConsumer c = null;

        if (destType == DESTINATION_TYPE_TOPIC_DURABLE) {
            myConn.stop();
            c = s.createDurableSubscriber((Topic) dest, getClientID(),
                    selector, false);
            myConn.start();
        } else {
            c = s.createConsumer(dest, selector);
        }

        return c;
    }

    /**
     *  get Message Producer for a given destination if one exist or create a new Producer
     */
    private MessageProducer getProducer(Destination dest, boolean isTransacted)
        throws JMSException {
        String key = dest.toString() + isTransacted;
        MessageProducer p = (MessageProducer) myProducerMap.get(key);

        if (p == null) {
            p = myProducerSession.createProducer(dest);
            myProducerMap.put(key, p);
        }

        return p;
    }

    /**
     *  get JMS Session for producer depending on whether it is transacted or not
     */
    private Session getProducerSession(boolean isTransacted)
        throws JMSException {
        String key = new String("session" + isTransacted) + "Producer";
        Session s = (Session) mySessionMap.get(key);

        if (s == null) {
            s = myConn.createSession(isTransacted, Session.AUTO_ACKNOWLEDGE);
            mySessionMap.put(key, s);
        }

        return s;
    }

    /**
     *  get JMS Session for consumer depending on whether it is transacted or not
     */
    private Session getConsumerSession(boolean isTransacted, int ackMode)
        throws JMSException {
        String key = new String("session" + isTransacted) + "Consumer" +
            ackMode;
        Session s = (Session) mySessionMap.get(key);

        if (s == null) {
            if (ackMode == AUTO_ACKNOWLEDGE) {
                ackMode = Session.AUTO_ACKNOWLEDGE;
            } else if (ackMode == CLIENT_ACKNOWLEDGE) {
                ackMode = Session.CLIENT_ACKNOWLEDGE;
            } else if (ackMode == DUPS_OK_ACKNOWLEDGE) {
                ackMode = Session.DUPS_OK_ACKNOWLEDGE;
            }

            //note: If a Session is transacted, the acknowledgement mode is ignored.
            s = myConn.createSession(isTransacted, ackMode);
            mySessionMap.put(key, s);
        }

        return s;
    }

    /**
     * sends n # of messages
     * this method is called from a message sender thread
     */
    private void sendMessage() {
        boolean isTransacted = sendMsgDialogB.isTransacted();
        int numOfMsg = sendMsgDialogB.getNumOfMsg();
        int delayBetweenMsg = sendMsgDialogB.getDelayBetweenMsg();

        sendMsgItem.setEnabled(false);
        sendMsgStopItem.setEnabled(true);
        setMsgSenderStopped(false);

        sendMsgProgressBar.setMaximum(numOfMsg);

        String msgStr = null;

        long t1 = System.currentTimeMillis();
        int msgIndex = 0;

        for (; msgIndex < numOfMsg; msgIndex++) {
            Message msg = null;

            if (isMsgSenderStopped()) {
                break;
            }

            try {
                try {
                    msg = createMessage(msgIndex + 1, numOfMsg);

                    myProducer.send(msg);

                    if (isTransacted) {
                        myProducerSession.commit();
                    }
                } catch (TransactionRolledBackException e) {
                    msgIndex--;
                } catch (JMSException e) {
                    if (isTransacted) {
                        myProducerSession.rollback();
                        msgIndex--;

                        continue;
                    }
                }
            } catch (Exception e) {
                showErrorDialog(e, "Send Message Error");
                e.printStackTrace();

                if (isValidConnection()) {
                    sendMsgItem.setEnabled(true);
                }

                sendMsgStopItem.setEnabled(false);
                setMsgSenderStopped(false);
                setSendMsgProgressBar(0, "");

                return;
            }

            try {
                msgStr = "Sending Message " + (msgIndex + 1) + " of " +
                    numOfMsg + "  To  " +
                    UniversalClientUtility.getDestination(msg);
            } catch (JMSException e1) {
                e1.printStackTrace();
            }

            setSendMsgProgressBar(msgIndex, msgStr);

            if (!(delayBetweenMsg == 0)) {
                try {
                    Thread.sleep(delayBetweenMsg);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        }

        long t2 = System.currentTimeMillis();

        msgProductionRate = (msgIndex * 1000.00) / (t2 - t1);
        setMsgProductionRate(new Double(msgProductionRate));

        if (isMsgSenderStopped()) {
            setSendMsgProgressBar(msgIndex, "Sending Message Stopped ....");
        } else {
            setSendMsgProgressBar(msgIndex, "Sending Message Completed ....");
        }

        if (connected()) {
            sendMsgItem.setEnabled(true);
        } else {
            setMsgProductionRate(new String("N/A"));
        }

        sendMsgStopItem.setEnabled(false);
        setMsgSenderStopped(false);

        //let the user see the status for 2 sec
        try {
            Thread.sleep(2000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }

        setSendMsgProgressBar(0, "");
    }

    /**
     * constructs message of given type, size and ttl
     */
    public Message createMessage(int msgNum, int totalNumMsgs)
        throws Exception {
        int ttl = sendMsgDialogB.getMsgTTL();
        int type = sendMsgDialogB.getMsgType();
        int size = sendMsgDialogB.getMsgSize();
        boolean compressed = (sendMsgDialogB.getCompression() == MSG_COMPRESSED);

        Message msg = null;
        byte b = 's';
        byte[] byteArr = new byte[size];
        Arrays.fill(byteArr, b);

        switch (type) {
        case MSG_TYPE_TEXT:
            msg = myProducerSession.createTextMessage();
            ((TextMessage) msg).setText(new String(byteArr));

            break;

        case MSG_TYPE_OBJECT:
            msg = myProducerSession.createObjectMessage();
            ((ObjectMessage) msg).setObject(new String(byteArr));

            break;

        case MSG_TYPE_MAP:
            msg = myProducerSession.createMapMessage();
            ((MapMessage) msg).setString("hello", new String(byteArr));

            break;

        case MSG_TYPE_BYTES:
            msg = myProducerSession.createBytesMessage();
            ((BytesMessage) msg).writeBytes(byteArr);

            break;

        case MSG_TYPE_STREAM:
            msg = myProducerSession.createStreamMessage();
            ((StreamMessage) msg).writeBytes(byteArr);

            break;
        }

        msg.setJMSExpiration(ttl);
        msg.setJMSType("Universal Client");

        msg.setIntProperty("totalNumMsgs", totalNumMsgs);
        msg.setIntProperty("msgNum", msgNum);
        msg.setStringProperty("msgNumStr", String.valueOf(msgNum));
        msg.setStringProperty("msgSource", "I am coming from universal client");

        msg.setBooleanProperty("JMS_SUN_COMPRESS", compressed);

        return (msg);
    }

    /**
     * create destination Topic or Queue for a given session
     */
    private Destination createDestination(int type, String name, Session s)
        throws JMSException {
        Destination dest = null;

        if (type == DESTINATION_TYPE_QUEUE) {
            dest = s.createQueue(name);
        } else {
            dest = s.createTopic(name);
        }

        return dest;
    }

    /**
     * @return Returns the password.
     */
    public String getPassword() {
        return connDialogB.getPassword();
    }

    /**
     * @return Returns connection factory configuration
     */
    public Properties getConnFactoryConfig() {
        return connDialogB.getConfiguration();
    }

    /**
     * @return Returns the userName.
     */
    public String getUserName() {
        return connDialogB.getPassword();
    }

    /**
     * @return Returns the hostName.
     */
    public String getHostName() {
        return hostName; //connDialogB.getHost();
    }

    public void setHostName(String hostName) {
        this.hostName = hostName;
    }

    /**
     * @return Returns the port.
     */
    public int getPort() {
        return port; //connDialogB.getPort();
    }

    public void setPort(int port) {
        this.port = port;
    }

    /**
     * @return Returns the clientID.
     */
    public String getClientID() {
        if (connDialogB == null) {
            return clientID;
        } else {
            return connDialogB.getClientID();
        }
    }

    /**
     * creates a consumer and start the message receiver thread
     * for receiving messages for a given destination
     */
    private void doReceiveMessage() {
        if (!connected()) {
            errorMessage("Unable to send Message.  " +
                "Please verify a broker is running");

            return;
        }

        receiveMsgDialogB.setVisible(false);

        try {
            boolean isTransacted = receiveMsgDialogB.isTransacted();
            String destName = receiveMsgDialogB.getDestinationName();
            int destType = receiveMsgDialogB.getDestinationType();
            String selector = receiveMsgDialogB.getSelector();
            int ackMode = receiveMsgDialogB.getAcknowledgeMode();

            myConsumerSession = getConsumerSession(isTransacted, ackMode);

            myDestination = createDestination(destType, destName,
                    myConsumerSession);
            myConsumer = getConsumer(myDestination, destType, isTransacted,
                    myConsumerSession, selector);

            //start message receiver thread
            Thread msgReceiver = new MessageReceiverThread();
            msgReceiver.start();
        } catch (ResourceAllocationException rae) {
            showErrorDialog(rae, "Receive Message Error");
        } catch (Exception e) {
            showErrorDialog(e, "Receive Message Error");
            doDisconnect();
        }
    }

    private boolean isValidConnection() {
        boolean result = false;

        if (myConn == null) {
            return false;
        } else {
            try {
                myConn.start();
                result = true;
            } catch (JMSException e) {
                e.printStackTrace();
            }
        }

        return result;
    }

    /**
     * receives message for a consumer, blocks on a receive call, if
     * consumer is closed , the method returns
     * this method is called from a message receiver thread
     */
    private void receiveMessage() {
        int counter = 0;
        boolean isTransacted = receiveMsgDialogB.isTransacted();
        int ackMode = receiveMsgDialogB.getAcknowledgeMode();
        int delayBetweenMsg = receiveMsgDialogB.getDelayBetweenMsg();

        rcvMsgItem.setEnabled(false);
        rcvMsgStopItem.setEnabled(true);

        setFooterInUse(true);
        setFooter("Waiting on a message Receive() call");

        try {
            while (true) {
                Message msg = null;

                try {
                    msg = myConsumer.receive();

                    if (msg == null) {
                        //reset the stop flag for msg receiver
                        setMsgReceiverStopped(false);

                        break;
                    }

                    if (isTransacted) {
                        myConsumerSession.commit();
                    } else {
                        if (ackMode == CLIENT_ACKNOWLEDGE) {
                            msg.acknowledge();
                        }
                    }
                } catch (TransactionRolledBackException ex) {
                    if (isMsgReceiverStopped()) {
                        //reset the stop flag for msg receiver
                        setMsgReceiverStopped(false);

                        break;
                    }

                    if (isValidConnection()) {
                        continue;
                    } else {
                        break;
                    }
                } catch (JMSException ex) {
                    if (isTransacted) {
                        myConsumerSession.rollback();
                    }

                    if (isMsgReceiverStopped()) {
                        //reset the stop flag for msg receiver
                        setMsgReceiverStopped(false);

                        break;
                    }

                    if (isValidConnection()) {
                        continue;
                    } else {
                        break;
                    }
                }

                counter++;

                addMessageToTable(msg);

                try {
                    String msgStr = "Last Received Message # " +
                        msg.getIntProperty("msgNum") + "/" +
                        msg.getIntProperty("totalNumMsgs") + "  From  " +
                        UniversalClientUtility.getDestination(msg);
                    setFooter(msgStr);
                } catch (JMSException e) {
                    e.printStackTrace();
                }

                if (!(delayBetweenMsg == 0)) {
                    try {
                        Thread.sleep(delayBetweenMsg);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            }

            myConsumer.close();
        } catch (Exception e) {
            showErrorDialog(e, "Receive Message Error");
            setFooterInUse(false);

            return;
        }

        rcvMsgItem.setEnabled(true);
        rcvMsgStopItem.setEnabled(false);

        String counterStr = (counter == 0) ? "NONE"
                                           : (new Integer(counter).toString());
        setFooter("Received messages for this transaction: " + counterStr);

        try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }

        setFooterInUse(false);
    }

    /**
     * shows status of  message table
     * this method is called from status reporting thread
     */
    public void showCurrentStatus() {
        MsgTable mt = (MsgTable) msgTable.getModel();

        int n = mt.getRowCount();

        if (isFooterInUse()) {
            frame.repaint();
        }

        if ((n != 0) && !isFooterInUse()) {
            setFooter("Message Table Current Size " + ": " + String.valueOf(n));
        }
    }

    /**
     * when auto-scrolling is enabled this is used to
     * scroll to last row of message table
     */
    public void scrollToLastRowOfTable() {
        Rectangle rect = UniversalClientUtility.getRowBounds(msgTable,
                msgTable.getRowCount() - 1);
        msgTable.scrollRectToVisible(rect);
    }

    /**
     * add received message on to message table
     */
    public void addMessageToTable(Message msg) {
        MsgTable mt = (MsgTable) msgTable.getModel();
        int n = 0;

        try {
            n = mt.addMessage(msg);

            if (n > MAX_TABLE_SIZE) {
                throw new ArrayIndexOutOfBoundsException();
            }

            if (isScrollingON()) {
                scrollToLastRowOfTable();
            }

            mt.updateUI();
        } catch (Exception e) {
            showErrorDialog("Exceeded MAX Table Capacity: " +
                "All Messages will be deleted", "Message Loading Error");

            mt.clearData();
        }
    }

    /**
     * Disconnects from session. destroyCurrentSession() performs the JMS
     * cleanup.
     */
    private void doDisconnect() {
        if (!connected()) {
            return;
        }

        destroyCurrentSession();

        setConnected(false);

        connectItem.setEnabled(true);
        disconnectItem.setEnabled(false);
        sendMsgItem.setEnabled(false);
        sendMsgStopItem.setEnabled(false);
        rcvMsgItem.setEnabled(false);
        rcvMsgStopItem.setEnabled(false);

        setFooter("Not Connected");
        setClientID();
        setHostPort("Not Connected");
        setMsgProductionRate("Not Available");
    }

    /**
     * Destroy/close ' Current session'
     * and clean all data structures
     */
    private void destroyCurrentSession() {
        try {
            //close consumer
            if (myConsumer != null) {
                myConsumer.close();
            }

            //close all producers
            Iterator iterator = myProducerMap.values().iterator();

            while (iterator.hasNext()) {
                MessageProducer element = (MessageProducer) iterator.next();
                element.close();
            }

            myProducerMap.clear();

            //close all producer & consumer session
            iterator = mySessionMap.values().iterator();

            while (iterator.hasNext()) {
                Session element = (Session) iterator.next();
                element.close();
            }

            mySessionMap.clear();
            clearMessageList();

            //close connection
            //myConn.close();
            //myConsumer = null;myProducer = null;myProducerSession = null;myConsumerSession = null;myConn = null;
        } catch (Exception e) {
            errorMessage("Caught Exception: " + e);
            myProducerMap.clear();
            mySessionMap.clear();
            clearMessageList();

            //e.printStackTrace();
        }
    }

    /**
     * clears all existing messages from message table
     */
    private void clearMessageList() {
        MsgTable mt = (MsgTable) msgTable.getModel();
        mt.clearData();
        setFooter("Message List Cleared");
    }

    /**
     * Display error:display it in the footer panel
     */
    private void errorMessage(String s) {
        setFooter(s);
    }

    /**
    * shows information message in a dialog box for String
    */
    private void showInformationDialog(String s, String reason) {
        JOptionPane.showMessageDialog(frame, s, reason,
            JOptionPane.INFORMATION_MESSAGE);
    }

    /**
     * shows error message in a dialog box for String
     */
    private void showErrorDialog(String s, String reason) {
        JOptionPane.showMessageDialog(frame, s, reason,
            JOptionPane.ERROR_MESSAGE);
    }

    /**
     * shows error message in a dialog box for Exception
     */
    private void showErrorDialog(Exception e, String reason) {
        JOptionPane.showMessageDialog(frame, e, reason,
            JOptionPane.ERROR_MESSAGE);
    }

    /**
     * These methods set a flag that indicates whether the application is
     * currently involved in a jms session.
     */
    private void setConnected(boolean b) {
        connected = b;
    }

    /**
     * These methods return a flag that indicates whether the application is
     * currently involved in a jms session.
     */
    private boolean connected() {
        return (connected);
    }

    /**
     * Exit application. Does some cleanup if necessary.
     */
    private void exit() {
        doDisconnect();
        System.exit(0);
    }

    /**
     * create footer panel
     */
    private JPanel createFooterPanel() {
        footerPanel = new JPanel();
        footerPanel.setLayout(new BorderLayout());
        footerLabel = new JLabel("");
        footerPanel.add(BorderLayout.WEST, footerLabel);

        JPanel dummyP = new JPanel();

        JButton details = new JButton("Message Details");
        details.setToolTipText("Show Message Details ");
        details.addActionListener(new DetailsListener());

        footerPanel.setBorder(BorderFactory.createEtchedBorder(
                EtchedBorder.RAISED));

        //can add other items if required
        dummyP.add(details);
        footerPanel.add(BorderLayout.EAST, dummyP);

        return footerPanel;
    }

    /**
     * @return Returns the scrollingON.
     */
    public boolean isScrollingON() {
        return scrollingON;
    }

    /**
     * @param scrollingON The scrollingON to set.
     */
    public void setScrollingON(boolean scrollingON) {
        this.scrollingON = scrollingON;
    }

    /**
     * @return Returns the footerInUse.
     */
    public boolean isFooterInUse() {
        return footerInUse;
    }

    /**
     * @param footerInUse The footerInUse to set.
     */
    public void setFooterInUse(boolean footerInUse) {
        this.footerInUse = footerInUse;
    }

    /**
     * Set text on footer
     */
    private void setFooter(String s) {
        footerLabel.setText(s);
        footerLabel.repaint();
    }

    /**
     * set text Client ID label
     */
    private void setClientID() {
        if (connected()) {
            clientIDLabel.setText("Client ID:  " + getClientID());
        } else {
            clientIDLabel.setText("Client ID:  " + clientID);
        }

        clientIDLabel.paintImmediately(clientIDLabel.getBounds());
    }

    /**
     *  Set text for host:port
     */
    private void setHostPort(String hostPort) {
        hostPortLabel.setText("Hostname & Port:  " + hostPort);
        hostPortLabel.paintImmediately(hostPortLabel.getBounds());
    }

    /**
     * Set value and string for SendMsgProgressBar
     */
    private void setSendMsgProgressBar(int value, String msgStr) {
        sendMsgProgressBar.setValue(value);
        sendMsgProgressBar.setString(msgStr);
        sendMsgProgressBar.setStringPainted(true);
    }

    /**
     *  Set text for msg production rate
     */
    private void setMsgProductionRate(Object rate) {
        String r = null;

        if (rate instanceof Double) {
            r = rate + " (msg/sec)";
        } else {
            r = rate.toString();
        }

        msgProductionRateLabel.setText("Msg Production Rate:  " + r);

        msgProductionRateLabel.paintImmediately(msgProductionRateLabel.getBounds());
    }

    /**
     * Show the contents of a message in a seperate popup window
     */
    private void showDetails(Message msg, int msgno) {
        try {
            msgno = msg.getIntProperty("msgNum");
        } catch (JMSException e) {
            e.printStackTrace();
        }

        if (detailsFrame == null) {
            // Create popup
            detailsFrame = new JFrame();
            detailsFrame.setTitle(title + " - Message Details");
            detailsFrame.setBackground(Color.white);
            detailsFrame.getContentPane().setLayout(new BorderLayout());

            msgDetailsHeaderPanel = new PropertyPanel();
            msgDetailsHeaderPanel.setTitle("JMS Headers");
            detailsFrame.getContentPane().add(BorderLayout.NORTH,
                msgDetailsHeaderPanel);

            msgDetailsPropertyPanel = new PropertyPanel();
            msgDetailsPropertyPanel.setTitle("Message Properties");
            detailsFrame.getContentPane().add(BorderLayout.CENTER,
                msgDetailsPropertyPanel);

            msgDetailsBodyPanel = new PropertyPanel();
            msgDetailsBodyPanel.setTitle("Message body");
            detailsFrame.getContentPane().add(BorderLayout.SOUTH,
                msgDetailsBodyPanel);
            detailsFrame.pack();
        }

        // Load JMS headers from message
        try {
            HashMap hdrs = UniversalClientUtility.jmsHeadersToHashMap(msg);
            msgDetailsHeaderPanel.setTitle("JMS Headers: Message #" + msgno);
            msgDetailsHeaderPanel.load(hdrs);
        } catch (JMSException ex) {
            setFooter("Error: " + ex.getMessage());
        }

        // Load message properties
        HashMap props = new HashMap();

        // Get all message properties and stuff into a hash table
        try {
            for (Enumeration enu = msg.getPropertyNames();
                    enu.hasMoreElements();) {
                String name = (enu.nextElement()).toString();
                props.put(name, (msg.getObjectProperty(name)).toString());
            }
        } catch (JMSException ex) {
            setFooter("Error: " + ex.getMessage());
        }

        msgDetailsPropertyPanel.load(props);

        // Load message body
        msgDetailsBodyPanel.setTitle("Message Body: (" +
            UniversalClientUtility.messageType(msg) + ")");
        msgDetailsBodyPanel.load(UniversalClientUtility.jmsMsgBodyAsString(msg));

        detailsFrame.setVisible(true);
    }

    /**
     * handles notification event "ConnectionReconnectedEvent"
     * when MQ client run time is able to recover a connection
     */
    public void handleAutoReconnect(
        com.sun.messaging.jms.notification.Event connEvent) {
        String eventMessage = connEvent.getEventMessage();
        StringTokenizer st = new StringTokenizer(eventMessage, ":");

        st.nextToken(); //event code
        st.nextToken(); //event message

        //TODO to replace the code with something safer
        String host = st.nextToken();
        String portStr = st.nextToken();

        portStr = portStr.substring(0, portStr.indexOf('('));

        //set host and port, to be displayed by UI
        setHostName(host);
        setPort(Integer.parseInt(portStr));

        setUpUIAfterConnection();
        showInformationDialog(connEvent.getEventMessage(),
            "Auto Reconnect Successful");
    }

    /**
     * handles notification events related to connection
     * which are emitted by MQ client run time
     */
    public void onException(JMSException ex) {
        // handle ConnectionClosedEvent or ConectionClosingEvent or ConnectionExitEvent
        setMsgSenderStopped(true);

        // note the message receiver thread exits when the connection is closed/exit
        // so no need to close the message consumer
        doDisconnect();
        showErrorDialog(ex.toString(), "Connection Closing Event");
    }

    /**
     * @return Returns the msgSenderStopped.
     */
    public boolean isMsgSenderStopped() {
        return msgSenderStopped;
    }

    /**
     * @param msgSenderStopped The msgSenderStopped to set.
     */
    public void setMsgSenderStopped(boolean msgSenderStopped) {
        this.msgSenderStopped = msgSenderStopped;
    }

    /**
     * stop the message consmer
     */
    public void stopMsgReceiver() {
        if (myConsumer != null) {
            try {
                setMsgReceiverStopped(true);
                myConsumer.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

    /**
     * appends to status area
     */
    public void printToStatusArea(String message) {
        statusArea.appendText("[" + new Date() + "]  " + message);
    }

    public boolean isMsgReceiverStopped() {
        return msgReceiverStopped;
    }

    public void setMsgReceiverStopped(boolean msgReceiverStopped) {
        this.msgReceiverStopped = msgReceiverStopped;
    }

    /**
     * the uclient application exits
     */
    class ExitListener implements ActionListener {
        public void actionPerformed(ActionEvent e) {
            exit();
        }
    }

    /**
     * clears all existing message of the message table
     */
    class ClearMessageListener implements ActionListener {
        public void actionPerformed(ActionEvent e) {
            clearMessageList();
        }
    }

    /**
     * pops up Connection dialog box
     */
    class ConnectionPopUpListener implements ActionListener {
        public void actionPerformed(ActionEvent e) {
            popUpConnDialogBox();
        }
    }

    /**
     * pops up Send message dialog box
     */
    class SendMessagePopUpListener implements ActionListener {
        public void actionPerformed(ActionEvent e) {
            popUpSendMessageDialogBox();
        }
    }

    /**
     * pops up Receive message dialog box
     */
    class ReceiveMessagePopUpListener implements ActionListener {
        public void actionPerformed(ActionEvent e) {
            popUpReceiveMessageDialogBox();
        }
    }

    /**
     * connects to broker when the "Connect" button of
     * connection dialog box is clicked
     */
    class ConnectionListener implements ActionListener {
        public void actionPerformed(ActionEvent e) {
            doConnect();
        }
    }

    /**
     * Handles the notification events emitted by MQ client runtime
     * This events could be due to BROKER shutdown, restart, error, crash
     * or MQ client runtime reconnect succesful or reconnect failed
     */
    class ConnectionEventListener
        implements com.sun.messaging.jms.notification.EventListener {
        public void onEvent(com.sun.messaging.jms.notification.Event connEvent) {
            log(connEvent);

            if (connEvent instanceof ConnectionReconnectedEvent) {
                String brokerAddr = ((ConnectionReconnectedEvent) connEvent).getBrokerAddress();

                // Broker address is in the format IP_address:port(actual_port);
                // we just want the IP_address:port part of the address.
                int index = brokerAddr.indexOf('(');

                if (index > 0) {
                    brokerAddr = brokerAddr.substring(0, index);
                }

                setHostPort(brokerAddr);
            }
        }

        private void log(com.sun.messaging.jms.notification.Event connEvent) {
            //String eventCode = connEvent.getEventCode();
            String eventMessage = connEvent.getEventMessage();
            printToStatusArea(eventMessage);
        }
    }

    /**
     * dis connects client connection when user clicks on
     * "DisConnect" Menu Item
     */
    class DisConnectionListener implements ActionListener {
        public void actionPerformed(ActionEvent e) {
            doDisconnect();

            try {
                //close connection only when the user wants to close
                myConn.close();
            } catch (JMSException e1) {
                e1.printStackTrace();
            }

            printToStatusArea("Successfully Disconnected from " +
                getHostName() + ":" + getPort());
        }
    }

    /**
     * starts sending message once the "send" button of
     * send msg dialog box is clicked
     */
    class SendMessageListener implements ActionListener {
        public void actionPerformed(ActionEvent e) {
            doSendMessage();
        }
    }

    /**
     * starts receiving message once "receive" button of
     * receive msg dialog box is clicked
     */
    class ReceiveMessageListener implements ActionListener {
        public void actionPerformed(ActionEvent e) {
            doReceiveMessage();
        }
    }

    /**
     * shows message details when message table row is double clicked
     */
    class TableMouseListener extends MouseAdapter {
        public void mouseClicked(MouseEvent e) {
            if (e.getClickCount() == 2) {
                int row = msgTable.getSelectedRow();
                MsgTable mt = (MsgTable) msgTable.getModel();
                Message msg = mt.getMessageAtRow(row);
                showDetails(msg, row);
            }
        }
    }

    /**
     * shows message details when message details button is clicked
     */
    class DetailsListener implements ActionListener {
        public void actionPerformed(ActionEvent e) {
            int row = msgTable.getSelectedRow();

            if (row < 0) {
                setFooter("Please select a message");

                return;
            }

            MsgTable mt = (MsgTable) msgTable.getModel();
            Message msg = mt.getMessageAtRow(row);
            showDetails(msg, row);
        }
    }

    /**
     *  this thread is responsible for sending messages
     */
    class MessageSenderThread extends Thread {
        public void run() {
            sendMessage();
        }
    }

    /**
     *  this thread is responsible for receiving messages
     */
    class MessageReceiverThread extends Thread {
        public void run() {
            receiveMessage();
        }
    }

    /**
     * StatusReporting thread is responsible for showing the message table status
     * also refreshes the main frame when the client receives messages
     */
    class StatusReportingThread extends Thread {
        public void run() {
            while (true) {
                if (connected()) {
                    showCurrentStatus();
                }

                try {
                    Thread.sleep(3000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        }
    }
}


/**
 * Dialog for connecting to broker, user name and password.
 *
 */
class ConnectionDialogBox extends JDialog {
    private static final long serialVersionUID = 3544395815952070704L;
    private JTextField userNameF;
    private JPasswordField passwordF;
    private JButton connectB;
    private JButton cancelB;
    private JComboBox hostPortComboBox;
    private JTextField clientIDF;
    private String host;
    private int port;
    private JTextArea cfTextArea;

    //
    JPanel p = new JPanel(new BorderLayout());
    JPanel dummyPanel = new JPanel();
    JPanel valuePanel = new JPanel();
    GridBagLayout valueGbag = new GridBagLayout();
    GridBagConstraints valueConstraints = new GridBagConstraints();

    /**
     * @param f
     */
    public ConnectionDialogBox(JFrame f) {
        super(f, "Universal Client: Connection information", true);
        init();
        setResizable(false);
        setLocationRelativeTo(f);
    }

    /**
     * Init GUI elements.
     */
    private void init() {
        int y = 0;

        valuePanel.setLayout(valueGbag);
        hostPortComboBox = new JComboBox();

        Dimension d = hostPortComboBox.getPreferredSize();
        d.setSize(8 * d.getWidth(), d.getHeight());
        hostPortComboBox.setPreferredSize(d);
        hostPortComboBox.setEditable(true);
        addDestToMenu("localhost:7676");
        addLabelAndValueComponent("Host:Port: ", hostPortComboBox, y++);

        userNameF = new JTextField(24);
        addLabelAndValueComponent("User Name: ", userNameF, y++);

        passwordF = new JPasswordField(24);
        addLabelAndValueComponent("Password: ", passwordF, y++);

        clientIDF = new JTextField(24);
        addLabelAndValueComponent("Client ID: ", clientIDF, y++);

        dummyPanel.add("Center", valuePanel);
        p.add("North", dummyPanel);

        //p.setBackground(Color.GRAY);
        p.setBorder(BorderFactory.createEtchedBorder());

        dummyPanel = new JPanel();
        connectB = new JButton("Connect");
        cancelB = new JButton("Cancel");
        dummyPanel.add(connectB);
        dummyPanel.add(cancelB);

        p.add("South", dummyPanel);

        cfTextArea = new JTextArea();
        cfTextArea.setFont(new Font("DialogInput", Font.BOLD, 11));

        //cfTextArea.setLineWrap(true);
        cfTextArea.setWrapStyleWord(true);
        cfTextArea.setEditable(true);

        JScrollPane areaScrollPane = new JScrollPane(cfTextArea);
        areaScrollPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
        areaScrollPane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
        areaScrollPane.setPreferredSize(new Dimension(350, 150));

        String connFactoryAttributes = "" +
            "# Edit/Change default attribute values if required \n\n" +
            "# Connection Handling \n" + "imqAddressList=  \n" +
            "imqAddressListBehavior=PRIORITY \n" +
            "imqAddressListIterations=1 \n" + "imqReconnectEnabled = false \n" +
            "imqReconnectAttempts = 0    \n" + "imqReconnectInterval=3000 \n" +
            " \n" + "# Connection handling attribute \n" +
            "imqConnectionType=TCP \n" + "imqSSLIsHostTrusted=true \n" +
            "imqConnectionURL=http://localhost/imq/tunnel \n" +
            "imqBrokerServicePort=0 \n" + " \n" + "# Client Identification \n" +
            "imqDefaultUsername=guest \n" + "imqDefaultPassword=guest \n" +
            "imqDisableSetClientID=false \n" + " \n" +
            "# Message Header Overrides  \n" +
            "imqOverrideJMSDeliveryMode=false \n" + "imqJMSDeliveryMode=2 \n" +
            "imqOverrideJMSExpiration=false \n" + "imqJMSExpiration=0 \n" +
            "imqOverrideJMSPriority=false \n" + "imqJMSPriority=4 \n" +
            "imqOverrideJMSHeadersToTemporaryDestinations=false \n" + " \n" +
            "# Reliability and Flow Control \n" + "imqAckTimeout=0 \n" +
            "imqAckOnProduce= \n" + "imqAckOnAcknowledge= \n" +
            "imqConnectionFlowCount=100 \n" +
            "imqConnectionFlowLimitEnabled=false \n" +
            "imqConnectionFlowLimit=1000 \n" + "imqConsumerFlowLimit=100 \n" +
            "imqConsumerFlowThreshold=50 \n" + " \n" +
            "# Queue Browser Behavior  \n" +
            "imqQueueBrowserMaxMessagesPerRetrieve=1000 \n" +
            "imqQueueBrowserRetrieveTimeout=60000 \n" +
            "imqLoadMaxToServerSession=true \n" + " \n" +
            "# JMS-defined Properties Support \n" +
            "imqSetJMSXUserID=false \n" + "imqSetJMSXAppID=false \n" +
            "imqSetJMSXProducerTXID=false \n" +
            "imqSetJMSXConsumerTXID=false \n" +
            "imqSetJMSXRcvTimestamp=false \n" + " \n" + "";

        cfTextArea.setText(connFactoryAttributes);
        cfTextArea.setCaretPosition(0);

        dummyPanel = new JPanel(new BorderLayout());
        dummyPanel.add("North", new JLabel("Connection Factory Attributes"));
        dummyPanel.add("South", areaScrollPane);
        dummyPanel.setBorder(BorderFactory.createEtchedBorder());
        p.add("Center", dummyPanel);

        getContentPane().add(p);
        pack();
    }

    private void addLabelAndValueComponent(String labelStr, Component value,
        int yAxis) {
        JLabel label = new JLabel(labelStr, Label.RIGHT);

        valueConstraints.gridx = 0;
        valueConstraints.gridy = yAxis;
        valueConstraints.weightx = 1.0;
        valueConstraints.weighty = 1.0;
        valueConstraints.anchor = GridBagConstraints.WEST;
        valueGbag.setConstraints(label, valueConstraints);
        valuePanel.add(label);

        valueConstraints.gridx = 1;
        valueConstraints.gridy = yAxis;
        valueConstraints.weightx = 1.0;
        valueConstraints.weighty = 1.0;
        valueConstraints.anchor = GridBagConstraints.WEST;
        valueGbag.setConstraints(value, valueConstraints);
        valuePanel.add(value);
    }

    /**
     * Add a name to the "Queue Name" combo box menu
     */
    private void addDestToMenu(String name) {
        DefaultComboBoxModel model = (DefaultComboBoxModel) hostPortComboBox.getModel();

        if (model.getIndexOf(name) < 0) {
            // Name is not in menu. Add it.
            model.addElement(name);
        }
    }

    /**
     * Return 'Connect' button
     */
    public JButton getConnectButton() {
        return (connectB);
    }

    /**
     * Return 'Cancel' button
     */
    public JButton getCancelButton() {
        return (cancelB);
    }

    /**
     * Return user name entered.
     */
    public String getUserName() {
        if (userNameF == null) {
            return (null);
        }

        return (userNameF.getText());
    }

    /**
     * Set chat user name.
     */
    public void setUserName(String s) {
        if (userNameF == null) {
            return;
        }

        userNameF.setText(s);
    }

    /**
     * Return user password entered.
     */
    public String getPassword() {
        if (passwordF == null) {
            return (null);
        }

        return (new String(passwordF.getPassword()));
    }

    /**
     * Set password.
     */
    public void setPassword(String s) {
        if (passwordF == null) {
            return;
        }

        passwordF.setText(s);
    }

    /**
     * @return Returns the host.
     */
    public String getHost() {
        String hostPort = (String) hostPortComboBox.getEditor().getItem();
        host = hostPort.substring(0, hostPort.indexOf(':')).trim();

        return host;
    }

    /**
     * @param host The host to set.
     */
    public void setHost(String host) {
        this.host = host;
    }

    /**
     * @return Returns the port.
     */
    public int getPort() {
        String hostPort = (String) hostPortComboBox.getEditor().getItem();
        String portStr = hostPort.substring(hostPort.indexOf(':') + 1);
        port = new Integer(portStr.trim()).intValue();

        return port;
    }

    /**
     * @param port The port to set.
     */
    public void setPort(int port) {
        this.port = port;
    }

    /**
     * @return Returns the clientID.
     */
    public String getClientID() {
        if (clientIDF != null) {
            return clientIDF.getText();
        }

        return null;
    }

    /**
     * @param clientID The clientID to set.
     */
    public void setClientID(String clientID) {
        if (clientIDF != null) {
            clientIDF.setText(clientID);
        }
    }

    /**
     * get configuration for connection factory
     */
    public Properties getConfiguration() {
        Properties props = new Properties();

        try {
            props.load(new ByteArrayInputStream(cfTextArea.getText().getBytes()));
        } catch (IOException e) {
            e.printStackTrace();
        }

        return props;
    }
}


/**
 * Dialog for sending one or more message, for a given destination Topic or Queue
 */
class SendMessageDialogBox extends JDialog implements UniversalClientConstants {
    private static final long serialVersionUID = 3258132444711302966L;
    private JTextField destinationNameF = new JTextField("defaultDest", 15);
    private JComboBox destinationType = new JComboBox();
    private JComboBox msgType = new JComboBox();
    private IntegerField msgSize = new IntegerField(10, 15);
    private IntegerField msgTTL = new IntegerField(10, 15);
    private JComboBox transactionType = new JComboBox();
    private JComboBox deliveryMode = new JComboBox();
    private JComboBox compression = new JComboBox();
    private IntegerField numOfMsg = new IntegerField(300, 15);
    private IntegerField delayBetweenMsg = new IntegerField(1000, 15);

    // buttons
    private JButton sendButton = new JButton("Send Message");
    private JButton cancelButton = new JButton("Cancel");

    //
    JPanel p = new JPanel(new BorderLayout());
    JPanel dummyPanel = new JPanel();
    JPanel valuePanel = new JPanel();
    GridBagLayout valueGbag = new GridBagLayout();
    GridBagConstraints valueConstraints = new GridBagConstraints();

    /**
     * @param owner
     */
    public SendMessageDialogBox(Frame owner) {
        super(owner, "Universal Client: Send Message", true);
        init();
        setResizable(false);
        setLocationRelativeTo(owner);
    }

    private void init() {
        int y = 0;

        valuePanel.setLayout(valueGbag);

        addLabelAndValueComponent("Destination Name", destinationNameF, y++);

        destinationType.insertItemAt("Queue         ", DESTINATION_TYPE_QUEUE);
        destinationType.insertItemAt("Topic", DESTINATION_TYPE_TOPIC);
        destinationType.setSelectedIndex(DESTINATION_TYPE_QUEUE);
        addLabelAndValueComponent("Destination Type", destinationType, y++);

        addLabelAndValueComponent("Message Size (bytes)", msgSize, y++);
        addLabelAndValueComponent("Message TTL (sec)", msgTTL, y++);

        deliveryMode.insertItemAt("PERSISTENT", DELIVERY_MODE_PERSISTENT);
        deliveryMode.insertItemAt("NON PERSISTENT", DELIVERY_MODE_NON_PERSISTENT);
        deliveryMode.setSelectedIndex(DELIVERY_MODE_PERSISTENT);
        addLabelAndValueComponent("Delivery Mode", deliveryMode, y++);

        transactionType.insertItemAt("Session Transacted", SESSION_TRANSACTED);
        transactionType.insertItemAt("Session Non Transacted",
            SESSION_NON_TRANSACTED);
        transactionType.setSelectedIndex(SESSION_TRANSACTED);
        addLabelAndValueComponent("Transaction Type", transactionType, y++);

        compression.insertItemAt("Compressed", MSG_COMPRESSED);
        compression.insertItemAt("Non Compressed", MSG_NON_COMPRESSED);
        compression.setSelectedIndex(MSG_NON_COMPRESSED);
        addLabelAndValueComponent("Compression Type", compression, y++);

        msgType.insertItemAt("ObjectMessage", MSG_TYPE_OBJECT);
        msgType.insertItemAt("TextMessage", MSG_TYPE_TEXT);
        msgType.insertItemAt("MapMessage", MSG_TYPE_MAP);
        msgType.insertItemAt("BytesMessage", MSG_TYPE_BYTES);
        msgType.insertItemAt("StreamMessage", MSG_TYPE_STREAM);
        msgType.setSelectedIndex(MSG_TYPE_TEXT);
        addLabelAndValueComponent("Message Type:", msgType, y++);

        addLabelAndValueComponent("Number of Message", numOfMsg, y++);

        addLabelAndValueComponent("Delay Between Msg(ms)", delayBetweenMsg, y++);

        //use a dummy panel
        dummyPanel.add("Center", valuePanel);
        p.add("North", dummyPanel);

        //p.setBackground(Color.GRAY);
        p.setBorder(BorderFactory.createEtchedBorder());

        dummyPanel = new JPanel();
        dummyPanel.add(sendButton);
        dummyPanel.add(cancelButton);

        p.add("South", dummyPanel);

        getContentPane().add(p);
        pack();
    }

    private void addLabelAndValueComponent(String labelStr, Component value,
        int yAxis) {
        JLabel label = new JLabel(labelStr, Label.RIGHT);

        valueConstraints.gridx = 0;
        valueConstraints.gridy = yAxis;
        valueConstraints.weightx = 1.0;
        valueConstraints.weighty = 1.0;
        valueConstraints.anchor = GridBagConstraints.WEST;
        valueGbag.setConstraints(label, valueConstraints);
        valuePanel.add(label);

        valueConstraints.gridx = 1;
        valueConstraints.gridy = yAxis;
        valueConstraints.weightx = 1.0;
        valueConstraints.weighty = 1.0;
        valueConstraints.anchor = GridBagConstraints.WEST;
        valueGbag.setConstraints(value, valueConstraints);
        valuePanel.add(value);
    }

    /**
     * @return Returns the cancelButton.
     */
    public JButton getCancelButton() {
        return cancelButton;
    }

    /**
     * @return Returns the compression.
     */
    public int getCompression() {
        return compression.getSelectedIndex();
    }

    /**
     * @return Returns the deliveryMode.
     */
    public int getDeliveryMode() {
        return deliveryMode.getSelectedIndex();
    }

    /**
     * @return Returns the destinationName.
     */
    public String getDestinationName() {
        return destinationNameF.getText();
    }

    /**
     * @return Returns the destinationType.
     */
    public int getDestinationType() {
        return destinationType.getSelectedIndex();
    }

    /**
     * @return Returns the msgSize.
     */
    public int getMsgSize() {
        return (int) msgSize.getValue();
    }

    /**
     * @return Returns the msgTTL.
     */
    public int getMsgTTL() {
        return (int) msgTTL.getValue();
    }

    /**
     * @return Returns the msgType.
     */
    public int getMsgType() {
        return msgType.getSelectedIndex();
    }

    /**
     * @return Returns the numOfMsg.
     */
    public int getNumOfMsg() {
        return (int) numOfMsg.getValue();
    }

    /**
     * @return Returns the sendButton.
     */
    public JButton getSendButton() {
        return sendButton;
    }

    /**
     * @return Returns the transactionType.
     */
    public boolean isTransacted() {
        return transactionType.getSelectedIndex() == 0;
    }

    /**
     * @return Returns the delayBetweenMsg.
     */
    public int getDelayBetweenMsg() {
        return (int) delayBetweenMsg.getValue();
    }
}


/**
 * Dialog for receiving message for given destination topic or Queue
 */
class ReceiveMessageDialogBox extends JDialog
    implements UniversalClientConstants {
    private static final long serialVersionUID = 3689630285423652918L;
    private JTextField destinationNameF = new JTextField("defaultDest", 15);
    private JComboBox msgConsumerType = new JComboBox();
    private JComboBox acknowledgeMode = new JComboBox();
    private JTextField selectorF = new JTextField("", 15);
    private IntegerField delayBetweenMsg = new IntegerField(2000, 15);

    // buttons
    private JButton receiveButton = new JButton("Receive Message");
    private JButton cancelButton = new JButton("Cancel");

    //
    JPanel p = new JPanel(new BorderLayout());
    JPanel dummyPanel = new JPanel();
    JPanel valuePanel = new JPanel();
    GridBagLayout valueGbag = new GridBagLayout();
    GridBagConstraints valueConstraints = new GridBagConstraints();

    /**
     * @param owner
     */
    public ReceiveMessageDialogBox(Frame owner) {
        super(owner, "Universal Client: Receive Message", true);
        init();
        setResizable(false);
        setLocationRelativeTo(owner);
    }

    /**
     * init GUI
     */
    private void init() {
        int y = 0;

        valuePanel.setLayout(valueGbag);

        addLabelAndValueComponent("Destination Name", destinationNameF, y++);

        msgConsumerType.insertItemAt("Queue         ", DESTINATION_TYPE_QUEUE);
        msgConsumerType.insertItemAt("Topic", DESTINATION_TYPE_TOPIC);
        msgConsumerType.insertItemAt("Topic Durable",
            DESTINATION_TYPE_TOPIC_DURABLE);
        msgConsumerType.setSelectedIndex(DESTINATION_TYPE_QUEUE);
        addLabelAndValueComponent("Msg Consumer Type", msgConsumerType, y++);

        acknowledgeMode.insertItemAt("AUTO_ACKNOWLEDGE", AUTO_ACKNOWLEDGE);
        acknowledgeMode.insertItemAt("CLIENT_ACKNOWLEDGE", CLIENT_ACKNOWLEDGE);
        acknowledgeMode.insertItemAt("DUPS_OK_ACKNOWLEDGE", DUPS_OK_ACKNOWLEDGE);
        acknowledgeMode.insertItemAt("SESSION TRANSACTED",
            SESSION_TRANSACTED_MODE);
        acknowledgeMode.setSelectedIndex(SESSION_TRANSACTED_MODE);

        addLabelAndValueComponent("Acknowledge Mode", acknowledgeMode, y++);

        addLabelAndValueComponent("Message Selector", selectorF, y++);

        addLabelAndValueComponent("Delay Between Msg(ms)", delayBetweenMsg, y++);

        //use a dummy panel
        dummyPanel.add("Center", valuePanel);
        p.add("North", dummyPanel);

        //p.setBackground(Color.GRAY);
        p.setBorder(BorderFactory.createEtchedBorder());

        dummyPanel = new JPanel();
        dummyPanel.add(receiveButton);
        dummyPanel.add(cancelButton);

        p.add("Center", dummyPanel);

        JTextArea textArea = new JTextArea();
        textArea.setFont(new Font("DialogInput", Font.BOLD, 11));
        textArea.setLineWrap(true);
        textArea.setWrapStyleWord(true);
        textArea.setEditable(false);

        JScrollPane areaScrollPane = new JScrollPane(textArea);
        areaScrollPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
        areaScrollPane.setPreferredSize(new Dimension(350, 150));

        String noteStr =
            "Note: The first receive message for a Durable Topic will create " +
            "a durable subscriber for that topic, One can keep receiving " +
            "message using the durable subsrcripton, however given the same " +
            "destination if the message selector is changed new durable " +
            "subcription is created and the previous subscription is deleted \n \n" +
            "Only one session at a time can have a TopicSubscriber for a particular durable " +
            "subscription. An inactive durable subscriber is one that exists but does not " +
            "currently have a message consumer associated with it. \n\n" +
            "A client can change an existing durable subscription by creating a durable" +
            "TopicSubscriber with the same name and a new topic and/or message selector. " +
            "Changing a durable subscriber is equivalent to unsubscribing (deleting) the old " +
            "one and creating a new one. ";
        textArea.setText(noteStr);
        textArea.setCaretPosition(0);

        p.add("South", areaScrollPane);

        getContentPane().add(p);
        pack();
    }

    private void addLabelAndValueComponent(String labelStr, Component value,
        int yAxis) {
        JLabel label = new JLabel(labelStr, Label.RIGHT);

        valueConstraints.gridx = 0;
        valueConstraints.gridy = yAxis;
        valueConstraints.weightx = 1.0;
        valueConstraints.weighty = 1.0;
        valueConstraints.anchor = GridBagConstraints.WEST;
        valueGbag.setConstraints(label, valueConstraints);
        valuePanel.add(label);

        valueConstraints.gridx = 1;
        valueConstraints.gridy = yAxis;
        valueConstraints.weightx = 1.0;
        valueConstraints.weighty = 1.0;
        valueConstraints.anchor = GridBagConstraints.WEST;
        valueGbag.setConstraints(value, valueConstraints);
        valuePanel.add(value);
    }

    /**
     * @return Returns the cancelButton.
     */
    public JButton getCancelButton() {
        return cancelButton;
    }

    /**
     * @return Returns the destinationName.
     */
    public String getDestinationName() {
        return destinationNameF.getText();
    }

    /**
     * @return Returns the destinationType.
     */
    public int getDestinationType() {
        return msgConsumerType.getSelectedIndex();
    }

    /**
     * @return Returns the receiveButton.
     */
    public JButton getReceiveButton() {
        return receiveButton;
    }

    /**
     * @return Returns the transactionType.
     */
    public boolean isTransacted() {
        return acknowledgeMode.getSelectedIndex() == SESSION_TRANSACTED_MODE;
    }

    /**
     * @return Returns the selector.
     */
    public String getSelector() {
        return selectorF.getText();
    }

    /**
     * @return Returns the acknowledgeMode.
     */
    public int getAcknowledgeMode() {
        return acknowledgeMode.getSelectedIndex();
    }

    /**
     * @return Returns the delayBetweenMsg.
     */
    public int getDelayBetweenMsg() {
        return (int) delayBetweenMsg.getValue();
    }
}


/**
 * UniversalClient Constants
 */
interface UniversalClientConstants {
    int MSG_TYPE_OBJECT = 0;
    int MSG_TYPE_TEXT = 1;
    int MSG_TYPE_MAP = 2;
    int MSG_TYPE_BYTES = 3;
    int MSG_TYPE_STREAM = 4;

    //dest type
    int DESTINATION_TYPE_QUEUE = 0;
    int DESTINATION_TYPE_TOPIC = 1;
    int DESTINATION_TYPE_TOPIC_DURABLE = 2;

    //msg delivery mode
    int DELIVERY_MODE_PERSISTENT = 0;
    int DELIVERY_MODE_NON_PERSISTENT = 1;

    //msg compression
    int MSG_COMPRESSED = 0;
    int MSG_NON_COMPRESSED = 1;

    //session transacted
    int SESSION_TRANSACTED = 0;
    int SESSION_NON_TRANSACTED = 1;

    //acknowledgeMode
    int AUTO_ACKNOWLEDGE = 0;
    int CLIENT_ACKNOWLEDGE = 1;
    int DUPS_OK_ACKNOWLEDGE = 2;
    int SESSION_TRANSACTED_MODE = 3;

    //
    int MAX_TABLE_SIZE = 30000;
    String title = "Sun Java(tm) System Message Queue Universal Client";
}


class IntegerField extends JTextField {
    private static final long serialVersionUID = 4050206357708159280L;
    private NumberFormat format = NumberFormat.getNumberInstance();

    public IntegerField(double value, int columns) {
        super(columns);
        format.setParseIntegerOnly(true);

        Document doc = new FormattedDocument(format);
        setDocument(doc);
        doc.addDocumentListener(new DocumentListener() {
                public void insertUpdate(DocumentEvent e) {
                    IntegerField.this.getValue();
                }

                public void removeUpdate(DocumentEvent e) {
                    IntegerField.this.getValue();
                }

                public void changedUpdate(DocumentEvent e) {
                }
            });
        setValue(value);
    }

    public double getValue() {
        double retVal = 0.0;

        try {
            retVal = format.parse(getText()).doubleValue();
        } catch (ParseException e) {
            // This should never happen because insertString allows
            // only properly formatted data to get in the field.
            Toolkit.getDefaultToolkit().beep();

            //System.err.println("getValue: could not parse: " + getText());
        }

        return retVal;
    }

    public void setValue(double value) {
        setText(format.format(value));
    }
}


class FormattedDocument extends PlainDocument {
    private static final long serialVersionUID = 3258134673816433462L;
    private Format format;

    public FormattedDocument(Format f) {
        format = f;
    }

    public Format getFormat() {
        return format;
    }

    public void insertString(int offs, String str, AttributeSet a)
        throws BadLocationException {
        String currentText = getText(0, getLength());
        String beforeOffset = currentText.substring(0, offs);
        String afterOffset = currentText.substring(offs, currentText.length());
        String proposedResult = beforeOffset + str + afterOffset;

        try {
            format.parseObject(proposedResult);
            super.insertString(offs, str, a);
        } catch (ParseException e) {
            Toolkit.getDefaultToolkit().beep();
            System.err.println("insertString: could not parse: " +
                proposedResult);
        }
    }

    public void remove(int offs, int len) throws BadLocationException {
        String currentText = getText(0, getLength());
        String beforeOffset = currentText.substring(0, offs);
        String afterOffset = currentText.substring(len + offs,
                currentText.length());
        String proposedResult = beforeOffset + afterOffset;

        try {
            if (proposedResult.length() != 0) {
                format.parseObject(proposedResult);
            }

            super.remove(offs, len);
        } catch (ParseException e) {
            Toolkit.getDefaultToolkit().beep();
            System.err.println("remove: could not parse: " + proposedResult);
        }
    }
}


/**
 * A table of JMS Messages
 */
class MsgTable extends AbstractTableModel {
    private static final long serialVersionUID = 3689630306999286069L;
    final String[] columnNames = {
            "#", "Timestamp", "Type", "Destination", "Mode", "Priority",
            "Redelivered"
        };
    SimpleDateFormat df = new SimpleDateFormat("dd/MMM/yyyy:kk:mm:ss z");
    LinkedList list = new LinkedList();

    public int getRowCount() {
        if (list == null) {
            return 0;
        } else {
            return list.size();
        }
    }

    public int getColumnCount() {
        return columnNames.length;
    }

    public String getColumnName(int column) {
        return columnNames[column];
    }

    public Object getValueAt(int row, int column) {
        if ((list == null) || list.isEmpty()) {
            return null;
        }

        Message m = (Message) list.get(row);

        if (m == null) {
            return "null";
        }

        try {
            switch (column) {
            case 0:

                if (UniversalClientUtility.getMessageNumber(m) != null) {
                    return UniversalClientUtility.getMessageNumber(m);
                } else { // Message number is the same as the row number

                    return new Integer(row);
                }

            case 1:

                // Need to format into date/time
                return df.format(new Date(m.getJMSTimestamp()));

            case 2:
                return (UniversalClientUtility.messageType(m));

            case 3:
                return UniversalClientUtility.getDestination(m);

            case 4:

                // Delivery mode
                int mode = m.getJMSDeliveryMode();

                if (mode == DeliveryMode.PERSISTENT) {
                    return "P";
                } else if (mode == DeliveryMode.NON_PERSISTENT) {
                    return "NP";
                } else {
                    return String.valueOf(mode) + "?";
                }

            case 5:

                // Priority
                return new Integer(m.getJMSPriority());

            case 6:
                return new Boolean(m.getJMSRedelivered());

            default:
                return "Bad column value: " + column;
            }
        } catch (JMSException e) {
            return ("Error: " + e);
        }
    }

    /**
     * Load and enumeration of messages into the table
     */
    int load(Enumeration e) {
        if (e == null) {
            return 0;
        }

        list = new LinkedList();

        while (e.hasMoreElements()) {
            list.add(e.nextElement());
        }

        fireTableDataChanged();

        return list.size();
    }

    /**
     * adss message to table
     */
    int addMessage(Message msg) {
        list.add(msg);

        return list.size();
    }

    public void updateUI() {
        fireTableRowsInserted(list.size() - 1, list.size());
    }

    public void clearData() {
        list.clear();
        fireTableDataChanged();
    }

    int load(List l) {
        if (l == null) {
            return 0;
        }

        if (l.size() == list.size()) {
            return list.size();
        }

        list = new LinkedList(l);

        fireTableDataChanged();

        return list.size();
    }

    Message getMessageAtRow(int row) {
        if (list == null) {
            return null;
        }

        return ((Message) list.get(row));
    }
}


/**
 * A panel with a text area that knows how to format and display a HashMap
 * of values.
 */
class PropertyPanel extends JPanel {
    private static final long serialVersionUID = 3257288045550974257L;
    JLabel label = null;
    JTextArea textArea = null;
    JScrollPane areaScrollPane = null;

    PropertyPanel() {
        super(true);
        setBorder(BorderFactory.createEtchedBorder());
        setLayout(new BorderLayout());

        label = new JLabel();

        textArea = new JTextArea();
        textArea.setFont(new Font("Monospaced", Font.PLAIN, 12));
        textArea.setLineWrap(true);
        textArea.setWrapStyleWord(true);
        textArea.setEditable(false);

        areaScrollPane = new JScrollPane(textArea);
        areaScrollPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
        areaScrollPane.setPreferredSize(new Dimension(500, 150));

        add(BorderLayout.NORTH, label);
        add(BorderLayout.CENTER, areaScrollPane);
    }

    void setTitle(String title) {
        label.setText(title);
    }

    /**
     * Display a HashMap in the text window
     */
    void load(HashMap map) {
        StringBuffer buf = new StringBuffer();

        Set entries = map.entrySet();
        Map.Entry entry = null;
        Iterator iter = entries.iterator();

        while (iter.hasNext()) {
            entry = (Map.Entry) iter.next();

            String key = entry.getKey().toString();

            Object o = entry.getValue();
            String value = "";

            if (o != null) {
                value = o.toString();
            }

            buf.append(pad(key + ": ", 20));
            buf.append(value + "\n");
        }

        textArea.setText(buf.toString());
        textArea.setCaretPosition(0);

        areaScrollPane.scrollRectToVisible(new Rectangle(0, 0, 1, 1));
    }

    /**
     * Display text in the text window
     */
    void load(String s) {
        textArea.setText(s);
    }

    /**
     * Pad a string to the specified width, right justified. If the string
     * is longer than the width you get back the original string.
     */
    String pad(String s, int width) {
        // Very inefficient, but we don't care
        StringBuffer sb = new StringBuffer();
        int padding = width - s.length();

        if (padding <= 0) {
            return s;
        }

        while (padding > 0) {
            sb.append(" ");
            padding--;
        }

        sb.append(s);

        return sb.toString();
    }
}


class UniversalClientUtility {
    public static String[] pad = { "", "0", "00", "000", "0000" };

    public static void dumpException(Exception e) {
        Exception linked = null;

        if (e instanceof JMSException) {
            linked = ((JMSException) e).getLinkedException();
        }

        if (linked == null) {
            e.printStackTrace();
        } else {
            System.err.println(e.toString());
            linked.printStackTrace();
        }
    }

    public static String getMessageNumber(Message m) throws JMSException {
        if (m.propertyExists("msgNum") && m.propertyExists("totalNumMsgs")) {
            int msgNum = m.getIntProperty("msgNum");
            int totalNumMsgs = m.getIntProperty("totalNumMsgs");

            return msgNum + " of " + totalNumMsgs;
        }

        return null;
    }

    public static String getDestination(Message m) throws JMSException {
        Destination d = m.getJMSDestination();
        String s = null;

        if (d != null) {
            if (d instanceof Queue) {
                s = "Queue: " + ((Queue) d).getQueueName();
            } else {
                s = "Topic: " + ((Topic) d).getTopicName();
            }
        } else {
            s = "";
        }

        return s;
    }

    /**
     * Return a string description of the type of JMS message
     */
    public static String messageType(Message m) {
        if (m instanceof TextMessage) {
            return "TextMessage";
        } else if (m instanceof BytesMessage) {
            return "BytesMessage";
        } else if (m instanceof MapMessage) {
            return "MapMessage";
        } else if (m instanceof ObjectMessage) {
            return "ObjectMessage";
        } else if (m instanceof StreamMessage) {
            return "StreamMessage";
        } else if (m instanceof Message) {
            return "Message";
        } else {
            // Unknown Message type
            String type = m.getClass().getName();
            StringTokenizer st = new StringTokenizer(type, ".");
            String s = null;

            while (st.hasMoreElements()) {
                s = st.nextToken();
            }

            return s;
        }
    }

    /**
     * Return a string representation of the body of a JMS bytes message. This
     * is basically a hex dump of the body. Note, this only looks at the first
     * 1K of the message body.
     */
    public static String jmsBytesBodyAsString(Message m) {
        byte[] body = new byte[1024];
        int n = 0;

        if (m instanceof BytesMessage) {
            try {
                ((BytesMessage) m).reset();
                n = ((BytesMessage) m).readBytes(body);
            } catch (JMSException ex) {
                return (ex.toString());
            }
        } else if (m instanceof StreamMessage) {
            try {
                ((StreamMessage) m).reset();
                n = ((StreamMessage) m).readBytes(body);
            } catch (JMSException ex) {
                return (ex.toString());
            }
        }

        if (n <= 0) {
            return "<empty body>";
        } else {
            return (toHexDump(body, n) + ((n >= body.length) ? "\n. . ." : ""));
        }
    }

    /**
     * Return a string representation of a JMS message body
     */
    public static String jmsMsgBodyAsString(Message m) {
        if (m instanceof TextMessage) {
            try {
                return ((TextMessage) m).getText();
            } catch (JMSException ex) {
                return ex.toString();
            }
        } else if (m instanceof BytesMessage) {
            return jmsBytesBodyAsString(m);
        } else if (m instanceof MapMessage) {
            MapMessage msg = (MapMessage) m;
            HashMap props = new HashMap();

            // Get all MapMessage properties and stuff into a hash table
            try {
                for (Enumeration enu = msg.getMapNames();
                        enu.hasMoreElements();) {
                    String name = (enu.nextElement()).toString();
                    props.put(name, (msg.getObject(name)).toString());
                }

                return props.toString();
            } catch (JMSException ex) {
                return (ex.toString());
            }
        } else if (m instanceof ObjectMessage) {
            ObjectMessage msg = (ObjectMessage) m;
            Object obj = null;

            try {
                obj = msg.getObject();

                if (obj != null) {
                    return obj.toString();
                } else {
                    return "null";
                }
            } catch (Exception ex) {
                return (ex.toString());
            }
        } else if (m instanceof StreamMessage) {
            return jmsBytesBodyAsString(m);
        } else if (m instanceof Message) {
            return "Can't get body for message of type Message";
        }

        return "Unknown message type " + m;
    }

    /**
     * Takes the JMS header fields of a JMS message and puts them in a HashMap
     */
    public static HashMap jmsHeadersToHashMap(Message m)
        throws JMSException {
        HashMap hdrs = new HashMap();
        String s = null;

        s = m.getJMSCorrelationID();
        hdrs.put("JMSCorrelationID", s);

        s = String.valueOf(m.getJMSDeliveryMode());
        hdrs.put("JMSDeliverMode", s);

        Destination d = m.getJMSDestination();

        if (d != null) {
            if (d instanceof Queue) {
                s = ((Queue) d).getQueueName() + " : Queue";
            } else {
                s = ((Topic) d).getTopicName() + " : Topic";
            }
        } else {
            s = "";
        }

        hdrs.put("JMSDestination", s);

        s = String.valueOf(m.getJMSExpiration());
        hdrs.put("JMSExpiration", s);

        s = m.getJMSMessageID();
        hdrs.put("JMSMessageID", s);

        s = String.valueOf(m.getJMSPriority());
        hdrs.put("JMSPriority", s);

        s = String.valueOf(m.getJMSRedelivered());
        hdrs.put("JMSRedelivered", s);

        d = m.getJMSDestination();

        if (d != null) {
            if (d instanceof Queue) {
                s = ((Queue) d).getQueueName();
            } else {
                s = ((Topic) d).getTopicName();
            }
        } else {
            s = "";
        }

        hdrs.put("JMSReplyTo", s);

        s = String.valueOf(m.getJMSTimestamp());
        hdrs.put("JMSTimestamp", s);

        s = m.getJMSType();
        hdrs.put("JMSType", s);

        return hdrs;
    }

    /**
     * Takes a buffer of bytes and returns a hex dump. Each hex digit represents
     * 4 bits. The hex digits are formatted into groups of 4 (2 bytes, 16 bits).
     * Each line has 8 groups, so each line represents 128 bits.
     */
    public static String toHexDump(byte[] buf, int length) {
        // Buffer must be an even length
        if ((buf.length % 2) != 0) {
            throw new IllegalArgumentException();
        }

        int value;
        StringBuffer sb = new StringBuffer(buf.length * 2);

        /*
         * Assume buf is in network byte order (most significant byte is
         * buf[0]). Convert two byte pairs to a short, then display as a hex
         * string.
         */
        int n = 0;

        while ((n < buf.length) && (n < length)) {
            value = buf[n + 1] & 0xFF; // Lower byte
            value |= ((buf[n] << 8) & 0xFF00); // Upper byte

            String s = Integer.toHexString(value);

            // Left bad with 0's
            sb.append(pad[4 - s.length()]);
            sb.append(s);
            n += 2;

            if ((n % 16) == 0) {
                sb.append("\n");
            } else {
                sb.append(" ");
            }
        }

        return sb.toString();
    }

    public static Rectangle getRowBounds(JTable table, int row) {
        checkRow(table, row);

        Rectangle result = table.getCellRect(row, -1, true);
        Insets i = table.getInsets();

        result.x = i.left;
        result.width = table.getWidth() - i.left - i.right;

        return result;
    }

    private static void checkRow(JTable table, int row) {
        if (row < 0) {
            throw new IndexOutOfBoundsException(row + " < 0");
        }

        if (row >= table.getRowCount()) {
            throw new IndexOutOfBoundsException(row + " >= " +
                table.getRowCount());
        }
    }

    /*
     * Set the properties on this object.
     */
    public static void setConnFactoryProperties(
        com.sun.messaging.AdministeredObject obj, Properties objProps)
        throws JMSException {
        /*
         * Set the specified properties on the new object.
         */
        for (Enumeration e = objProps.propertyNames(); e.hasMoreElements();) {
            String propName = (String) e.nextElement();
            String value = objProps.getProperty(propName);

            if (value != null) {
                try {
                    obj.setProperty(propName, value.trim());
                } catch (JMSException je) {
                    throw je;
                }
            }
        }
    }
}


class StatusArea extends JPanel {
    private static final long serialVersionUID = 3618421531575793975L;
    private JTextArea statusTextArea;

    /**
     * Create status bar for uclient console application.
     */
    public StatusArea() {
        super(true);
        setLayout(new BorderLayout());
        statusTextArea = new JTextArea(4, 60);

        //statusTextArea = new JTextArea();
        statusTextArea.setLineWrap(true);
        statusTextArea.setForeground(Color.BLUE);
        statusTextArea.setEditable(false);

        JScrollPane statusTextPane = new JScrollPane(statusTextArea);
        add(statusTextPane, BorderLayout.CENTER);
    }

    /**
     * Append status text to the text area.
     *
     * @param statusText the status text
     */
    public void appendText(String statusText) {
        statusText = statusText + "\n";
        statusTextArea.append(statusText);
        statusTextArea.setCaretPosition(statusTextArea.getText().length());
    }

    /*
     * Clears the text shown in the Status Area.
     */
    public void clearText() {
        statusTextArea.setText("");
    }
}


        








Related examples in the same category

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3.This example illustrates how JMS can be used to create a simple chat application
4.How to write a GUI application that uses a JMS QueueBrowser to browse the contents of a queue
5.This example is a simple JMS client application
6.Demonstrates a simple end-to-end "Hello World" JMS example that can be compiled and run with the Sun Java(tm) System Message Queue product
7.The BrokerMetrics example is a JMS application that monitors the Sun Java(tm) System Message Queue broker
8.The DestListMetrics example is a JMS application that monitors the destinations on a Sun Java(tm) System Message Queue broker
9.The DestMetrics example is a JMS application that monitors a destination on a Sun Java(tm) System Message Queue broker
10.The VMMetrics example is a JMS application that monitors the Java VM used by the Sun Java(tm) System Message Queue broker
11.MQ Cluster Monitor
12.The TopicSelectors class demonstrates the use of multiple subscribers and message selectors
13.A message will not be acknowledged until processing of it is complete
14.Reads a textfile, creates a BytesMessage from it, then reads the message
15.A durable subscription is active even when the subscriber is not active
16.Creates and then reads a StreamMessage and a BytesMessage
17.Creates and reads messages in all supported JMS message formats: BytesMessage, TextMessage, MapMessage, StreamMessage, and ObjectMessage
18.The use of message header fields
19.Demonstrates that mutable objects are copied, not passed by reference, when you use them to create message objects
20.A simple implementation of a request/reply message exchange
21.Sends several messages to a queue
22.Fetches one or more messages from a queue using synchronous message delivery
23.The simplest form of the publish/subscribe model: the producer publishes a message, and the consumer reads it using a synchronous receive
24.Demonstrates the use of transactions in a JMS application
25.Creates a Producer and a Consumer objects (Producer and Consumer classes are defined in this file)
26.Fetches one or more messages from a queue using asynchronous message delivery
27.The use of a message listener in the publish/subscribe model. The producer publishes several messages, and the consumer reads them asynchronously