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/*
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*
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*
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* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
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* language governing permissions and limitations under the License.
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* file and include the License file at packager/legal/LICENSE.txt.
*
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* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
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*/
/*
* @(#)MQApplet.java 1.4 07/02/07
*/
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.jms.*;
/**
* This is a simple chat applet that uses JMS APIs. It uses publish
* subscribe model. It can also be run as a standalone application.
*/
public class MQApplet extends JApplet
implements ActionListener, ExceptionListener, MessageListener {
private static boolean DEBUG = Boolean.getBoolean("mqapplet.debug");
private static String TRANSPORT;
static {
TRANSPORT = System.getProperty("mqapplet.transport");
if (TRANSPORT == null)
TRANSPORT = "";
}
private JPanel mainPanel;
private StatusPanel statusBar;
private JTextField urlField;
private JTextField hostField, portField;
private JTextField addrField;
private JTextArea txArea, rxArea;
JButton connectButton, exitButton, clearButton, sendButton;
private boolean createExitButton = false;
public void init() {
initGUI();
initJMS();
}
public void destroy() {
shutdownJMS();
shutdownGUI();
}
private void enableExit() {
createExitButton = true;
}
private void initGUI() {
// The application window contains the 'mainPanel' container
// and a status bar.
Container content = getContentPane();
// Create the mainPanel container. It holds all the UI
// components...
mainPanel = new JPanel();
mainPanel.setLayout(new BorderLayout());
content.add("Center", mainPanel);
// Create the status bar..
statusBar = new StatusPanel();
content.add("South", statusBar);
//
// Now start populating mainPanel...
//
// dialogPanel contains JMS configuration and the connect
// button.
JPanel dialogPanel = new JPanel();
dialogPanel.setLayout(
new BoxLayout(dialogPanel, BoxLayout.Y_AXIS));
dialogPanel.setBorder(
createMyBorder("JMS Connection Properties..."));
JPanel dummyPanel;
if (TRANSPORT.equalsIgnoreCase("http")) {
dummyPanel = new JPanel();
dummyPanel.setLayout(new BoxLayout(dummyPanel, BoxLayout.X_AXIS));
dummyPanel.add(new JLabel("imqConnectionURL : "));
urlField = new JTextField("http://");
dummyPanel.add(urlField);
dialogPanel.add(dummyPanel);
}
else if (TRANSPORT.equalsIgnoreCase("tcp")) {
dummyPanel = new JPanel();
dummyPanel.setLayout(new BoxLayout(dummyPanel, BoxLayout.X_AXIS));
dummyPanel.add(new JLabel("imqBrokerHostName : "));
hostField = new JTextField("localhost");
dummyPanel.add(hostField);
dialogPanel.add(dummyPanel);
dummyPanel = new JPanel();
dummyPanel.setLayout(new BoxLayout(dummyPanel, BoxLayout.X_AXIS));
dummyPanel.add(new JLabel("imqBrokerHostPort : "));
portField = new JTextField("7676");
dummyPanel.add(portField);
dialogPanel.add(dummyPanel);
}
else {
dummyPanel = new JPanel();
dummyPanel.setLayout(new BoxLayout(dummyPanel, BoxLayout.X_AXIS));
dummyPanel.add(new JLabel("imqAddressList : "));
addrField = new JTextField("mq://localhost:7676");
dummyPanel.add(addrField);
dialogPanel.add(dummyPanel);
}
dummyPanel = new JPanel();
dummyPanel.setLayout(new BoxLayout(dummyPanel, BoxLayout.X_AXIS));
connectButton = new JButton();
connectButton.setBorder(BorderFactory.createCompoundBorder(
BorderFactory.createEmptyBorder(3, 0, 3, 3),
connectButton.getBorder()));
connectButton.addActionListener(this);
setConnectButton("Connect");
dummyPanel.add(connectButton);
if (createExitButton) {
exitButton = new JButton("Exit");
exitButton.setBorder(BorderFactory.createCompoundBorder(
BorderFactory.createEmptyBorder(3, 3, 3, 3),
exitButton.getBorder()));
exitButton.addActionListener(this);
dummyPanel.add(exitButton);
}
dialogPanel.add(dummyPanel);
JPanel messagePanel = new JPanel();
messagePanel.setLayout(new GridLayout(2, 1));
dummyPanel = new JPanel();
dummyPanel.setLayout(new BoxLayout(dummyPanel, BoxLayout.Y_AXIS));
dummyPanel.setBorder(createMyBorder("Received messages "));
rxArea = new JTextArea();
rxArea.setEditable(false);
JScrollPane spane = new JScrollPane(rxArea,
JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
dummyPanel.add(spane);
clearButton = new JButton("Clear");
clearButton.setBorder(BorderFactory.createCompoundBorder(
BorderFactory.createEmptyBorder(3, 3, 3, 3),
clearButton.getBorder()));
clearButton.addActionListener(this);
dummyPanel.add(clearButton);
messagePanel.add(dummyPanel);
dummyPanel = new JPanel();
dummyPanel.setLayout(new BoxLayout(dummyPanel, BoxLayout.Y_AXIS));
dummyPanel.setBorder(createMyBorder("Send message "));
txArea = new JTextArea();
txArea.setEditable(true);
spane = new JScrollPane(txArea,
JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
dummyPanel.add(spane);
sendButton = new JButton("Send");
sendButton.setBorder(BorderFactory.createCompoundBorder(
BorderFactory.createEmptyBorder(3, 3, 3, 3),
sendButton.getBorder()));
sendButton.addActionListener(this);
dummyPanel.add(sendButton);
messagePanel.add(dummyPanel);
mainPanel.add("North", dialogPanel);
mainPanel.add("Center", messagePanel);
}
private void initJMS() {
}
private void shutdownGUI() {
remove(mainPanel);
mainPanel = null;
}
private void shutdownJMS() {
doDisconnect();
}
public void processEvent(AWTEvent e) {
if (e.getID() == Event.WINDOW_DESTROY) {
System.exit(0);
}
}
public void actionPerformed(ActionEvent e) {
if (e.getActionCommand().equals("Connect")) {
if (TRANSPORT.equalsIgnoreCase("http")) {
String us = urlField.getText();
statusBar.setStatusLine("Connecting to " + us + "...");
initHTTPConnectionFactory(us);
}
else if (TRANSPORT.equalsIgnoreCase("tcp")) {
String h = hostField.getText();
String p = portField.getText();
statusBar.setStatusLine("Connecting to " + h + ":" + p + "...");
initTCPConnectionFactory(h, p);
}
else {
String addr = addrField.getText();
statusBar.setStatusLine("Connecting to " + addr + "...");
initConnectionFactory(addr);
}
doConnect();
}
if (e.getActionCommand().equals("Disconnect")) {
statusBar.setStatusLine("Disconnecting...");
doDisconnect();
statusBar.setStatusLine("Connection closed.");
}
if (e.getActionCommand().equals("Send")) {
String ss = txArea.getText();
doSend(ss);
txArea.setText(null);
}
if (e.getActionCommand().equals("Clear")) {
rxArea.setText(null);
}
if (e.getActionCommand().equals("Exit")) {
doDisconnect();
System.exit(0);
}
}
public void updateRxArea(String s) {
rxArea.append(s);
}
public void enableConnectButton() {
setConnectButton("Connect");
}
public void enableDisconnectButton() {
setConnectButton("Disconnect");
}
ConnectionFactory connectionFactory = null;
Connection connection = null;
Session session = null;
Topic topic = null;
MessageConsumer msgConsumer = null;
MessageProducer msgProducer = null;
TextMessage textMessage = null;
public void initHTTPConnectionFactory(String s) {
try {
if (connectionFactory == null) {
connectionFactory = (ConnectionFactory)
new com.sun.messaging.ConnectionFactory();
}
// Provider specific code start.
com.sun.messaging.ConnectionFactory cf =
(com.sun.messaging.ConnectionFactory) connectionFactory;
cf.setProperty(
com.sun.messaging.ConnectionConfiguration.imqConnectionType,
"HTTP");
cf.setProperty(
com.sun.messaging.ConnectionConfiguration.imqConnectionURL,
s);
// Provider specific code end.
}
catch (JMSException e) {
updateRxArea("initHTTPConnectionFactory : " + e.toString() + "\n");
e.printStackTrace();
if (e.getLinkedException() != null)
e.getLinkedException().printStackTrace();
}
}
public void initTCPConnectionFactory(String h, String p) {
try {
if (connectionFactory == null) {
connectionFactory = (ConnectionFactory)
new com.sun.messaging.ConnectionFactory();
}
// Provider specific code start.
com.sun.messaging.ConnectionFactory cf =
(com.sun.messaging.ConnectionFactory) connectionFactory;
// Set imqAddressList property.
((com.sun.messaging.ConnectionFactory)cf).setProperty(
com.sun.messaging.ConnectionConfiguration.imqAddressList,
new StringBuffer().append("mq://").append(h).append(
":").append(p).append("/jms").toString());
// Provider specific code end.
}
catch (JMSException e) {
updateRxArea("initTCPConnectionFactory : " + e.toString() + "\n");
e.printStackTrace();
if (e.getLinkedException() != null)
e.getLinkedException().printStackTrace();
}
}
public void initConnectionFactory(String a) {
if (connectionFactory == null) {
connectionFactory = (ConnectionFactory)
new com.sun.messaging.ConnectionFactory();
}
try {
// Provider specific code start.
com.sun.messaging.ConnectionFactory cf =
(com.sun.messaging.ConnectionFactory) connectionFactory;
cf.setProperty(
com.sun.messaging.ConnectionConfiguration.imqAddressList,
a);
// Provider specific code end.
}
catch (JMSException e) {
updateRxArea("initConnectionFactory : " + e.toString() + "\n");
e.printStackTrace();
if (e.getLinkedException() != null)
e.getLinkedException().printStackTrace();
}
}
public void doConnect() {
try {
connection = connectionFactory.createConnection();
connection.setExceptionListener(this);
connection.start();
session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
topic = session.createTopic("MQChatAppletTopic");
msgConsumer = session.createConsumer(topic);
msgConsumer.setMessageListener(this);
msgProducer = session.createProducer(topic);
textMessage = session.createTextMessage();
statusBar.setStatusLine("Connected");
enableDisconnectButton();
}
catch (JMSException e) {
updateRxArea("doConnect : " + e.toString() + "\n");
statusBar.setStatusLine("Unable to connect.");
e.printStackTrace();
if (e.getLinkedException() != null)
e.getLinkedException().printStackTrace();
}
}
public void doSend(String s) {
if (msgProducer == null) {
statusBar.setStatusLine("Not connected.");
return;
}
try {
textMessage.setText(s);
msgProducer.send(textMessage);
}
catch (JMSException e) {
updateRxArea("doSend : " + e.toString() + "\n");
e.printStackTrace();
}
}
public void doDisconnect() {
try {
if (connection != null)
connection.close();
}
catch (Exception e) {}
connection = null;
session = null;
topic = null;
msgConsumer = null;
msgProducer = null;
textMessage = null;
enableConnectButton();
}
public void onException(JMSException e) {
statusBar.setStatusLine("Connection lost : " + e.toString());
doDisconnect();
}
public void onMessage(Message m) {
try {
if (m instanceof TextMessage) {
String s = ((TextMessage) m).getText();
updateRxArea(s);
}
}
catch (JMSException e) {
e.printStackTrace();
updateRxArea("onMessage : " + e.toString() + "\n");
}
}
private void setConnectButton(String text) {
connectButton.setText(text);
connectButton.setActionCommand(text);
connectButton.invalidate();
connectButton.validate();
mainPanel.repaint();
}
private javax.swing.border.Border createMyBorder(String title) {
javax.swing.border.Border inner =
BorderFactory.createLineBorder(Color.black);
if (title != null)
inner = BorderFactory.createTitledBorder(inner, title);
javax.swing.border.Border outer =
BorderFactory.createEmptyBorder(3, 3, 3, 3);
return BorderFactory.createCompoundBorder(outer, inner);
}
public void cleanupAndExit() {
destroy();
System.exit(0);
}
public static MQApplet mq = null;
public static void mainWindowClosed() {
mq.cleanupAndExit();
}
public static void main(String []args) {
JFrame f = new JFrame("MQApplet");
f.setDefaultCloseOperation(f.DO_NOTHING_ON_CLOSE);
f.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
mainWindowClosed();
}
});
mq = new MQApplet();
mq.enableExit();
mq.init();
mq.start();
f.getContentPane().add("Center", mq);
f.setSize(600, 600);
f.show();
}
class StatusPanel extends JPanel {
private JLabel label = null;
public StatusPanel() {
setLayout(new BorderLayout());
setBorder(BorderFactory.createLoweredBevelBorder());
label = new JLabel();
int size = label.getFont().getSize();
label.setFont(new Font("Serif", Font.PLAIN, size));
add("West", label);
setStatusLine("Ready");
}
public void setStatusLine(String statusLine) {
if (statusLine == null)
statusLine = "";
label.setText(statusLine);
invalidate();
validate();
repaint();
}
}
}
/*
* EOF
*/
