circulateframe.java

在IBM AGLET平台下可实现AGLET在不同主机间巡回的代码

package examples.itinerary;

import com.ibm.aglet.Message;
import com.ibm.aglet.util.AddressChooser;
import com.ibm.agletx.util.SeqItinerary;
import com.ibm.agletx.util.SeqPlanItinerary;
import java.awt.*;
import java.awt.event.*;

// Referenced classes of package examples.itinerary:
//            CirculateAglet

class CirculateFrame extends Frame
    implements WindowListener, ActionListener, ItemListener
{

    CirculateAglet aglet;
    List list;
    AddressChooser address;
    Choice choice;
    Checkbox check;

    CirculateFrame(CirculateAglet circulateaglet)
    {
        list = new List(10, false);
        address = new AddressChooser(15);
        choice = new Choice();
        check = new Checkbox("Repeat");
        aglet = circulateaglet;
        setLayout(new BorderLayout());
        add("Center", list);
        addWindowListener(this);
        check.addItemListener(this);
        Panel panel = new Panel();
        panel.setLayout(new FlowLayout());
        panel.add(address);
        panel.add(choice);
        Button button = new Button("Add");
        Button button1 = new Button("Remove");
        button.addActionListener(this);
        button1.addActionListener(this);
        panel.add(button);
        panel.add(button1);
        add("North", panel);
        panel = new Panel();
        panel.setLayout(new FlowLayout());
        panel.add(check);
        Button button2 = new Button("Once More");
        Button button3 = new Button("Start!");
        button2.addActionListener(this);
        button3.addActionListener(this);
        panel.add(button2);
        panel.add(button3);
        add("South", panel);
        choice.addItem("getLocalInfo");
        choice.addItem("getProxies");
        choice.addItem("printResult");
        update();
    }

    public void actionPerformed(ActionEvent actionevent)
    {
        if("Once More".equals(actionevent.getActionCommand()))
            aglet.oncemore();
        else
        if("Start!".equals(actionevent.getActionCommand()))
            aglet.start();
        else
        if("Remove".equals(actionevent.getActionCommand()))
        {
            int i = list.getSelectedIndex();
            if(i >= 0)
            {
                aglet.itinerary.removePlanAt(i);
                list.remove(i);
            }
        } else
        if("Add".equals(actionevent.getActionCommand()))
        {
            aglet.itinerary.addPlan(address.getAddress(), choice.getSelectedItem());
            update();
        }
    }

    public void itemStateChanged(ItemEvent itemevent)
    {
        aglet.itinerary.setRepeat(check.getState());
    }

    private void update()
    {
        list.removeAll();
        SeqPlanItinerary seqplanitinerary = aglet.itinerary;
        int i = seqplanitinerary.size();
        for(int j = 0; j < i; j++)
        {
            String s = seqplanitinerary.getAddressAt(j) + " : " + seqplanitinerary.getMessageAt(j).getKind();
            list.add(s);
        }

        check.setState(aglet.itinerary.isRepeat());
    }

    public void windowActivated(WindowEvent windowevent)
    {
    }

    public void windowClosed(WindowEvent windowevent)
    {
    }

    public void windowClosing(WindowEvent windowevent)
    {
        dispose();
    }

    public void windowDeactivated(WindowEvent windowevent)
    {
    }

    public void windowDeiconified(WindowEvent windowevent)
    {
    }

    public void windowIconified(WindowEvent windowevent)
    {
    }

    public void windowOpened(WindowEvent windowevent)
    {
    }
}