import java.awt.Dimension;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.SwingUtilities;

import org.apache.log4j.Logger;

/**
* @author Daniel
*/
public class FrameTester {

/**
* logging support
*/
private static Logger log = Logger.getLogger(FrameTester.class);

private JFrame applicationFrame;

public FrameTester() {
super();
}

public void startup() {
log.debug("startup application");

applicationFrame = new JFrame("FrameTester");
applicationFrame.setMinimumSize(new Dimension(320, 280));
applicationFrame.addWindowListener(new ApplicationFrameListener());

applicationFrame.setVisible(true);
}

public void shutdown() {
log.debug("shutdown application");

int option = JOptionPane.showConfirmDialog(applicationFrame
.getRootPane(), "Do you want to exit the application?",
"Exit Application", JOptionPane.YES_NO_OPTION);
if (option == JOptionPane.YES_OPTION) {
// if user commits closing the application simply exits without
// disposing the frame
applicationFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
} else if (option == JOptionPane.NO_OPTION) {
// in case user cancels the closing the application disposes the
// frame and calls windowClosed() which starts the frame again
applicationFrame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
} else {
// if he closes the window we do nothing
applicationFrame
.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
}

}

private class ApplicationFrameListener extends WindowAdapter {

/**
* {@inheritDoc}
*
* @see java.awt.event.WindowAdapter#windowOpened(java.awt.event.WindowEvent)
*/
@Override
public void windowOpened(WindowEvent e) {
log.debug("application frame - window opened");
}

/**
* {@inheritDoc}
*
* @see WindowAdapter#windowClosing(WindowEvent)
*/
@Override
public void windowClosing(WindowEvent e) {
log.debug("application frame - window closing");

shutdown();
}

/**
* {@inheritDoc}
*
* @see WindowAdapter#windowClosed(WindowEvent)
*/
@Override
public void windowClosed(WindowEvent e) {
log.debug("application frame - window closed");

startup();
}

}