source: greenstone3/trunk/src/java/org/greenstone/server/BaseServerControl.java@ 18661

package org.greenstone.server;

import java.awt.*;
import java.awt.event.*;
import java.io.File;
import java.util.ArrayList;
import javax.swing.*;
import javax.swing.border.*;

import org.greenstone.gsdl3.util.GlobalProperties;

import org.apache.log4j.*;
/**
 * Base class to help start or restart the library server
 * 
 */
public abstract class BaseServerControl extends JFrame {

    static Logger logger = Logger.getLogger(BaseServerControl.class.getName());
 
    /** The dimension of the frame */
    static final private Dimension FRAME_SIZE = new Dimension(350, 250);

    Color bg_color = Color.white;    
    
    /** some components we need to refer to later */
    protected JLabel info_label;
    protected JButton enter_button;
    protected JMenu fMenu;
    protected BaseServer server;
    protected JFrame thisframe;
    
    public BaseServerControl(BaseServer server,String frame_title) 
    {
    super(frame_title);
 
    this.server = server;
        thisframe = this;

    setSize(FRAME_SIZE);
    setDefaultCloseOperation(EXIT_ON_CLOSE);
    Dimension screen_size = Toolkit.getDefaultToolkit().getScreenSize();
    setLocation((screen_size.width - FRAME_SIZE.width) / 2,
            (screen_size.height - FRAME_SIZE.height) / 2);
    setBackground(Color.white);
        addWindowListener(new MyAdapter()); 
   
        JPanel title_panel = new JPanel();
    title_panel.setLayout(new BorderLayout());

        JLabel title_label = new JLabel();


        String title = BaseServer.dictionary.get("ServerControl.Title");           
        title_label.setText(stringToHTML(title)); 
        title_label.setOpaque(false);   
    title_label.setHorizontalAlignment(SwingConstants.CENTER);
        title_label.setFont(new Font("SansSerif",Font.PLAIN,18));
       

        JLabel version_label = new JLabel();
        String version = BaseServer.dictionary.get("ServerControl.Version", new String [] {GlobalProperties.getProperty(BaseServer.Property.GSDL_VERSION)}).toLowerCase();
         
        version_label.setText(stringToHTML(version)); 
        version_label.setOpaque(false); 
    version_label.setHorizontalAlignment(SwingConstants.CENTER);
        version_label.setFont(new Font("SansSerif",Font.PLAIN,14));
        
        title_panel.add(title_label,BorderLayout.CENTER);
        title_panel.add(version_label,BorderLayout.SOUTH);
    title_panel.setBackground(bg_color);    
    title_panel.setBorder(BorderFactory.createEmptyBorder(5,10,5,10));

    info_label = new JLabel();
        info_label.setOpaque(false);
        info_label.setHorizontalAlignment(SwingConstants.LEFT);
        info_label.setVerticalAlignment(SwingConstants.CENTER);
        info_label.setFont(new Font("SansSerif",Font.PLAIN,14));
    info_label.setBorder(BorderFactory.createEmptyBorder(5,10,5,10));           
        
        JPanel button_panel = new JPanel(new FlowLayout(FlowLayout.CENTER));
    enter_button = new JButton();
    enter_button.setEnabled(false);
    enter_button.addActionListener(new EnterButtonListener());
        enter_button.setText(BaseServer.dictionary.get("ServerControl.EnterLibrary"));
    button_panel.add(enter_button);
    button_panel.setBackground(bg_color);   
    button_panel.setBorder(BorderFactory.createEmptyBorder(5,10,5,10));
    getRootPane().setDefaultButton(enter_button); // button gets the focus for enterpress

    getContentPane().setLayout(new BorderLayout());
    getContentPane().add(title_panel,BorderLayout.NORTH);
    getContentPane().add(info_label,BorderLayout.CENTER);
    getContentPane().add(button_panel,BorderLayout.SOUTH);
    getContentPane().setBackground(bg_color);
        setJMenuBar(createMenu());
    setVisible(true);
    }

    protected abstract JMenuBar createMenu();

    protected JMenuBar createMenu(JMenuItem iConf) {
    JMenuBar menuBar = new JMenuBar();
         fMenu = new JMenu(BaseServer.dictionary.get("ServerControl.Menu.File"));
    JMenuItem iExit = new JMenuItem(BaseServer.dictionary.get("ServerControl.Menu.Exit"));
    iExit.setBackground(Color.white);
    iExit.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent ae) {
            Thread runInThread = new Thread(new Runnable(){
                public void run(){
                server.stop();
                
                }
            },"stop server");
            try{
                        runInThread.start(); 
        
            }
            catch(Exception e){
            logger.error(e);
            }    
            thisframe.dispose();
        }
        });

    fMenu.add(iConf);
    fMenu.add(iExit);
    fMenu.setEnabled(false);
    menuBar.add(fMenu);
    menuBar.setBorder(new BevelBorder(BevelBorder.RAISED));
    return menuBar;
    }

    public void updateControl(){
        switch (server.getServerState()){
    case BaseServer.SERVER_STARTED:
        {
        info_label.setText(stringToHTML(BaseServer.dictionary.get("ServerControl.Help_EnterLibrary")));
        enter_button.setEnabled(true);
        fMenu.setEnabled(true);
                break;
        }
    case BaseServer.SERVER_START_FAILED:
        {
        enter_button.setText(stringToHTML(BaseServer.dictionary.get("ServerControl.StartServer")));
        enter_button.setEnabled(true);
        fMenu.setEnabled(true);
        break;  
        }
    case BaseServer.BROWSER_LAUNCHED:
        {
        info_label.setText(stringToHTML(BaseServer.dictionary.get("ServerControl.Help_RestartLibrary")));
        enter_button.setText(stringToHTML(BaseServer.dictionary.get("ServerControl.RestartLibrary")));
        thisframe.setState(Frame.ICONIFIED);
        enter_button.setEnabled(true);
                fMenu.setEnabled(true);
        break;
        }
    case BaseServer.BROWSER_LAUNCH_FAILED:
        {
        enter_button.setText(stringToHTML(BaseServer.dictionary.get("ServerControl.EnterLibrary")));
        enter_button.setEnabled(true);
        fMenu.setEnabled(true);
                 break; 
        }
        default:{
        enter_button.setEnabled(false);
        fMenu.setEnabled(false);
    }
    }
    }
           
   
    public void displayMessage(String message){
    info_label.setText(stringToHTML("<br>"+message));           
    }
    
    private class MyAdapter extends WindowAdapter{   
    public void windowClosing(WindowEvent env){
            Thread runInThread = new Thread(new Runnable(){
                public void run(){
                server.stop();
                
                }
        },"stop server");
        try{
        runInThread.start(); 
        }
        catch(Exception e){
        logger.error(e);
        }  
        thisframe.dispose();
    }
    } 

    private String stringToHTML(String s){
    return "<html><body>"+s+"</body></html>";   
    }
    
    private class EnterButtonListener
    implements ActionListener {
    
    public void actionPerformed(ActionEvent ev) {
        switch (server.getServerState()){
        case BaseServer.SERVER_STARTED: case BaseServer.BROWSER_LAUNCH_FAILED:
        {
         Thread runInThread = new Thread(new Runnable(){
                public void run(){
                server.launchBrowser();
                }
            },"launch browser");
            
            runInThread.start(); 
                   break;     
        }
        case BaseServer.SERVER_START_FAILED:
        {
            Thread runInThread = new Thread(new Runnable(){
                public void run(){
                server.start();
                }
            },"start server");
            runInThread.start();
            break;
        }   
        case BaseServer.BROWSER_LAUNCHED:
        {
            Thread runInThread = new Thread(new Runnable(){
                public void run(){
                server.restart();
                  
                }
            },"restart server");
            runInThread.start();
        }  
        }   
      
    }
    }
}