org.jgroups.demos.wb.SendDialog Maven / Gradle / Ivy

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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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package org.jgroups.demos.wb;

import org.jgroups.blocks.*;

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;


public class SendDialog extends Dialog implements ActionListener {
    private final TextArea msg=new TextArea("");
    private final Font default_font=new Font("Helvetica", Font.PLAIN, 12);
    private RpcDispatcher disp=null;
    private Node dest=null;
    private String sender=null;


    public SendDialog(Frame parent, Node dest, String src, RpcDispatcher disp) {
        super(parent, "Send message to " + dest.lbl + " at " + dest.addr, true);

        Panel p1=new Panel(), p2=new Panel();
        Button send=new Button("Send"), send_all=new Button("Send to all");
        Button cancel=new Button("Cancel");

        this.disp=disp;
        this.dest=dest;
        sender=src;

        send.setFont(default_font);
        send_all.setFont(default_font);
        cancel.setFont(default_font);
        msg.setFont(default_font);

        p1.setLayout(new BorderLayout());
        p1.add(msg);

        p2.setLayout(new FlowLayout());
        send.addActionListener(this);
        send_all.addActionListener(this);
        cancel.addActionListener(this);
        p2.add(send);
        p2.add(send_all);
        p2.add(cancel);

        add("Center", p1);
        add("South", p2);

        setSize(300, 150);

        Point my_loc=parent.getLocation();
        my_loc.x+=50;
        my_loc.y+=150;
        setLocation(my_loc);
        setVisible(true);
    }


    public String getMessage() {
        String retval=msg.getText();
        return retval.length() > 0? retval : null;
    }


    public void actionPerformed(ActionEvent e) {
        String command=e.getActionCommand();
        String retval=msg.getText();

        if(retval == null || retval.length() < 1) {
            dispose();
            return;
        }

        try {
            MethodCall call=new MethodCall("displayMessage", new Object[]{sender,retval},
                                           new Class[]{String.class,String.class});
            if(command.equals("Send"))
                disp.callRemoteMethod(dest.addr, call, new RequestOptions(ResponseMode.GET_FIRST, 0));
            else if(command.equals("Send to all"))
                disp.callRemoteMethods(null, call, new RequestOptions(ResponseMode.GET_ALL, 0));
        }
        catch(Throwable ex) {
            System.err.println(ex);
        }

        dispose();
    }


}