package chap18;

import java.awt.*;

import javax.swing.*;

import java.rmi.*;

import java.awt.event.*;

public class ServiceBrowser {

JPanel mainPanel;

JComboBox serviceList;

ServiceServer server;

public void buildGUI() {

JFrame frame = new JFrame("RMI Browser");

mainPanel = new JPanel();

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

Object[] services = getServicesList();

serviceList = new JComboBox(services);

frame.getContentPane().add(BorderLayout.NORTH, serviceList);

serviceList.addActionListener(new MyListListener());

frame.setSize(500,500);

frame.setVisible(true);

}

void loadService(Object serviceSelection) {

try {

Service svc = server.getService(serviceSelection);

mainPanel.removeAll();

mainPanel.add(svc.getGuiPanel());

mainPanel.validate();

mainPanel.repaint();

} catch(Exception ex) {

ex.printStackTrace();

}

}

Object[] getServicesList() {

Object obj = null;

Object[] services = null;

try {

obj = Naming.lookup("rmi://127.0.0.1/ServiceServer");

}

catch(Exception ex) {

ex.printStackTrace();

}

server = (ServiceServer) obj;

try {

services = server.getServiceList();

} catch(Exception ex) {

ex.printStackTrace();

}

return services;

}

class MyListListener implements ActionListener {

public void actionPerformed(ActionEvent ev) {

// do things to get the selected service

Object selection = serviceList.getSelectedItem();

loadService(selection);

}

}

public static void main(String[] args) {

new ServiceBrowser().buildGUI();

}

}