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This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and Jakarta Messaging 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;

import org.jgroups.Address;
import org.jgroups.blocks.cs.*;
import org.jgroups.util.Util;

import java.io.BufferedInputStream;
import java.io.DataInput;
import java.io.InputStream;
import java.net.InetAddress;
import java.nio.ByteBuffer;

/**
 * Demo of a client which connects to a server ({@link PubServer}) and sends it messages which are forwarded to all
 * connected clients
 * @author Bela Ban
 * @since  3.6.5
 */
public class PubClient implements Receiver, ConnectionListener {
    protected BaseServer       client;
    protected final String     name;
    protected volatile boolean running=true;
    protected InputStream      in;

    public PubClient(String name) {
        this.name=name;
    }


    @Override
    public void receive(Address sender, ByteBuffer buf) {
        byte[] buffer=buf.array();
        String msg=new String(buffer, buf.arrayOffset(), buf.remaining());
        System.out.printf("-- %s\n", msg);
    }

    @Override
    public void receive(Address sender, byte[] buf, int offset, int length) {
        String msg=new String(buf, offset, length);
        System.out.printf("-- %s\n", msg);
    }

    @Override public void receive(Address sender, DataInput in, int length) throws Exception {
        byte[] buf=new byte[length];
        in.readFully(buf);
        String msg=new String(buf);
        System.out.printf("-- %s\n", msg);
    }

    @Override
    public void connectionClosed(Connection conn) {
        client.stop();
        running=false;
        Util.close(in);
        System.out.printf("connection to %s closed", conn.peerAddress());
    }

    @Override
    public void connectionEstablished(Connection conn) {

    }

    protected void start(InetAddress srv_addr, int srv_port, boolean nio) throws Exception {
        client=nio? new NioClient(InetAddress.getLocalHost(), 0, srv_addr, srv_port)
          : new TcpClient(InetAddress.getLocalHost(), 0, srv_addr, srv_port);
        client.receiver(this);
        client.addConnectionListener(this);
        client.start();
        send(String.format("%s joined", name));
        eventLoop();
        client.stop();
    }

    protected void eventLoop() {
        in=new BufferedInputStream(System.in);
        while(running) {
            try {
                System.out.print("> "); System.out.flush();
                String line=Util.readLine(in);
                if(line == null)
                    break;
                if(line.startsWith("quit") || line.startsWith("exit")) {
                    break;
                }
                send(String.format("%s: %s", name, line));
            }
            catch(Exception e) {
                e.printStackTrace();
                break;
            }
        }
    }

    protected void send(String str) throws Exception {
        byte[] buf=str.getBytes();
        ((Client)client).send(buf, 0, buf.length);
    }

    public static void main(String[] args) throws Exception {
        InetAddress server_addr=InetAddress.getLocalHost();
        int         server_port=7500;
        String      name=null;
        boolean     nio=true;

        for(int i=0; i < args.length; i++) {
            if(args[i].equals("-addr")) {
                server_addr=InetAddress.getByName(args[++i]);
                continue;
            }
            if(args[i].equals("-port")) {
                server_port=Integer.parseInt(args[++i]);
                continue;
            }
            if(args[i].equals("-name")) {
                name=args[++i];
                continue;
            }
            if(args[i].equals("-nio")) {
                nio=Boolean.parseBoolean(args[++i]);
                continue;
            }
            help();
            return;
        }

        if(name == null)
            throw new IllegalStateException("name needs to be defined");

        PubClient client=new PubClient(name);
        client.start(server_addr, server_port, nio);
    }



    protected static void help() {
        System.out.println("PubClient -name name [-addr ] [-port ] [-nio true|false]");
    }
}