Proxy.java

package Proxy;

import java.io.*;
import java.net.InetSocketAddress;
import java.net.ServerSocket;
import java.net.Socket;


//Main class of the package
//Only creates a server socket

public class Proxy {
    private static final String HOST_IP = "127.0.0.1";
    private InetSocketAddress address;
    private ServerSocket proxy;
    
    public Proxy(String ip, int port) throws IOException{
        this.address = new InetSocketAddress(ip, port);
        this.proxy = new ServerSocket();
        
        this.proxy.setReuseAddress(true);
        this.proxy.bind(address);
    }
    
    //Loop to listen to petitions and create a thread to handle it
    public void open() throws IOException{
     while (true){
            Socket user = this.proxy.accept();
            System.out.println("Connection from " + user.getLocalSocketAddress() + " has "
                    + "been established.");
            
            //Using threads to implement simultaneous connections
            Server server = new Server(user);
            new Thread(server).start();
        }   
    }
    
    public static void main(String[] args) throws IOException{
        int PORT = Integer.parseInt(args[0]);
        Proxy proxy = new Proxy(HOST_IP, PORT);
        proxy.open();
    }
}