configureconnectorspage.java

这是一个以JAVA编写的程序,本人还没有试过,是一个简单的温度控制系统

package net.sf.dz.setup;

import java.awt.GridBagConstraints;
import java.awt.GridBagLayout; 
import java.awt.event.ActionEvent;
import java.awt.event.ItemEvent;
import java.util.Map;
import java.awt.GridLayout;
import javax.swing.BorderFactory;
import javax.swing.JCheckBox;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;

import org.freehold.jukebox.logger.Logger;

import net.sf.dz.util.wizard.NarrowWizardPage;
import net.sf.dz.util.wizard.Wizard;

public class ConfigureConnectorsPage extends NarrowWizardPage {

    private JPanel broadcasterPanel = new JPanel();
    private JPanel controllerPanel = new JPanel();
    
    private JTextField broadcasterBindPortText = new JTextField("5000", 5);
    private JTextField broadcasterAnnouncePortText = new JTextField("5001", 5);
    private JCheckBox broadcasterSecureBox = new JCheckBox("Secure");
    private JComboBox broadcasterTransportCombo = new JComboBox();
    private JTextField broadcasterPasswordText = new JTextField("", 5);
    private JLabel broadcasterPasswordLabel = new JLabel("Password");

    private JTextField controllerBindPortText = new JTextField("5002", 5);
    private JTextField controllerAnnouncePortText = new JTextField("5003",5 );
    private JCheckBox controllerSecureBox = new JCheckBox("Secure");
    private JComboBox controllerTransportCombo = new JComboBox();
    private JTextField controllerPasswordText = new JTextField("", 5);
    private JLabel controllerPasswordLabel = new JLabel("Password");
    
    public ConfigureConnectorsPage(Logger logger, Wizard owner, boolean isServer) {
    
        super(logger, owner, "Configure PnP " + (isServer ? "Server" : "Client"));
        
        getNarrowPane().setLayout(new GridLayout(2, 1));
        
        getNarrowPane().add(broadcasterPanel);
        getNarrowPane().add(controllerPanel);
        
        broadcasterPanel.setBorder(BorderFactory.createTitledBorder("Broadcaster"));
        controllerPanel.setBorder(BorderFactory.createTitledBorder("Controller"));
        
        fill(broadcasterPanel,
             broadcasterBindPortText,
             broadcasterAnnouncePortText,
             broadcasterSecureBox,
             broadcasterTransportCombo,
             broadcasterPasswordText,
             broadcasterPasswordLabel,
             isServer);
             
        fill(controllerPanel,
             controllerBindPortText,
             controllerAnnouncePortText,
             controllerSecureBox,
             controllerTransportCombo,
             controllerPasswordText,
             controllerPasswordLabel,
             isServer);
    }
    
    private void fill(JPanel panel,
                      JTextField bindPortText,
                      JTextField announcePortText,
                      JCheckBox secureBox,
                      JComboBox transportCombo,
                      JTextField passwordText,
                      JLabel passwordLabel,
                      boolean isServer) {
    
        GridBagLayout layout = new GridBagLayout();
        GridBagConstraints cs = new GridBagConstraints();
        
        panel.setLayout(layout);
        
        passwordText.setEnabled(false);
        passwordLabel.setEnabled(false);
        
        cs.gridx = 0;
        cs.gridy = 0;
        cs.weightx = 1;
        cs.weighty = 0;
        cs.gridwidth = 2;
        cs.fill = GridBagConstraints.HORIZONTAL;
        
        layout.setConstraints(secureBox, cs);
        panel.add(secureBox);
        
        cs.gridy++;
        cs.gridwidth = 1;
        cs.weightx = 0;
        
        layout.setConstraints(passwordLabel, cs);
        panel.add(passwordLabel);
        
        cs.gridx++;
        cs.weightx = 1;
        
        layout.setConstraints(passwordText, cs);
        panel.add(passwordText);
        
        cs.gridx--;
        cs.gridy++;
        cs.gridwidth = 1;
        cs.weightx = 0;
        
        if ( isServer ) {
        
            JLabel bindPortLabel = new JLabel("Listen on port", JLabel.RIGHT);
            layout.setConstraints(bindPortLabel, cs);
            panel.add(bindPortLabel);
            
            cs.gridx++;
            cs.weightx = 1;
            
            layout.setConstraints(bindPortText, cs);
            panel.add(bindPortText);

            cs.gridx--;
            cs.gridy++;
            cs.gridwidth = 1;
            cs.weightx = 0;
        }
        
        JLabel announcePortLabel = new JLabel(isServer ? "Announce on port" : "Listen to announces on port", JLabel.RIGHT);
        layout.setConstraints(announcePortLabel, cs);
        panel.add(announcePortLabel);
        
        cs.gridx++;
        cs.weightx = 1;
        
        layout.setConstraints(announcePortText, cs);
        panel.add(announcePortText);

        cs.gridx--;
        cs.gridy++;
        cs.gridwidth = 1;
        cs.weightx = 0;
        
        JLabel transportLabel = new JLabel("Announce transport", JLabel.RIGHT);
        layout.setConstraints(transportLabel, cs);
        panel.add(transportLabel);
        
        cs.gridx++;
        cs.weightx = 1;
        
        layout.setConstraints(transportCombo, cs);
        panel.add(transportCombo);
        
        transportCombo.addItem("Unicast UDP");
        transportCombo.addItem("Multicast TCP");
        transportCombo.setEnabled(false);
        
        bindPortText.setHorizontalAlignment(JTextField.TRAILING);
        announcePortText.setHorizontalAlignment(JTextField.TRAILING);

        bindPortText.addActionListener(this);
        announcePortText.addActionListener(this);
        secureBox.addItemListener(this);
        transportCombo.addActionListener(this);
        passwordText.addActionListener(this);

        bindPortText.addCaretListener(this);
        announcePortText.addCaretListener(this);
        passwordText.addCaretListener(this);
    }
    
    public String getHelpURL() {
    
        return "FIXME";
    }
    
    public String validate() {
    
        if (    (broadcasterSecureBox.isSelected() && "".equals(broadcasterPasswordText.getText()))
             || (controllerSecureBox.isSelected() && "".equals(controllerPasswordText.getText()))) {
        
            return "Empty passwords are not allowed";
        }
    
        String p = checkPort(broadcasterBindPortText.getText());
        
        if ( !"".equals(p) ) {
        
            return p;
        }


        p = checkPort(broadcasterAnnouncePortText.getText());
        
        if ( !"".equals(p) ) {
        
            return p;
        }

        p = checkPort(controllerBindPortText.getText());
        
        if ( !"".equals(p) ) {
        
            return p;
        }

        p = checkPort(controllerBindPortText.getText());
        
        if ( !"".equals(p) ) {
        
            return p;
        }
    
        Map context = getOwner().getContext();
        
        context.put("connector.broadcaster.secure", new Boolean(broadcasterSecureBox.isSelected()));
        context.put("connector.broadcaster.password", broadcasterPasswordText.getText());
        context.put("connector.broadcaster.bind", broadcasterBindPortText.getText());
        context.put("connector.broadcaster.announce", broadcasterAnnouncePortText.getText());
        context.put("connector.broadcaster.announce.transport.udp", broadcasterTransportCombo.getSelectedItem().toString());

        context.put("connector.controller.secure", new Boolean(controllerSecureBox.isSelected()));
        context.put("connector.controller.password", controllerPasswordText.getText());
        context.put("connector.controller.bind", controllerBindPortText.getText());
        context.put("connector.controller.announce", controllerAnnouncePortText.getText());
        context.put("connector.controller.announce.transport.udp", controllerTransportCombo.getSelectedItem().toString());

        return "";
    }
    
    /**
     * Check if the port value is good enough.
     *
     * "Good" enough means that it can be parsed into an integer, is
     * more than 1024 (no privileged ports here), and less than 65535.
     *
     * @param port String representation of port number
     *
     * @return Empty string if port is OK.
     */
    private String checkPort(String port) {
    
        try {
        
            long p = Long.parseLong(port);
            
            if ( p < 1024L ) {
            
                return "Privileged (< 1024) ports are not allowed";
            }
            
            if ( p > 65535L ) {
            
                return "Port number is too high (" + port + ")";
            }
            
        } catch ( Throwable t ) {
        
            return "Bad port '" + port + "': not a number";
        }
        
        return "";
    }
    
    protected void actionPerformed2(ActionEvent e) {
    
        //complain("Connector: " + e);
    }
    
    protected void itemStateChanged2(ItemEvent e) {
    
        broadcasterPasswordText.setEnabled(broadcasterSecureBox.isSelected());
        controllerPasswordText.setEnabled(controllerSecureBox.isSelected());
        broadcasterPasswordLabel.setEnabled(broadcasterSecureBox.isSelected());
        controllerPasswordLabel.setEnabled(controllerSecureBox.isSelected());
    
        //getOwner().getContext().put("1-Wire driver.owapi", new Boolean(owapiRadio.isSelected()));
    }

    public boolean isEnabled() {
    
        return true;
    }
}