import java.io.*;
import java.net.*;

public class Node {
	
    public static void main(String[] args) {
		
        if(args.length == 2) {
		Server s = new Server(Integer.parseInt(args[0]),Integer.parseInt(args[1]));
		s.startListening();
        } else if(args.length == 4) {
            	Client c = new Client(Integer.parseInt(args[0]),args[1],Integer.parseInt(args[2]),args[3]);
		c.connect();
        } else {
            	System.err.println("\nUsage (Server): java Node <port> <clients>");
		System.err.println("Usage (Client): java Node <id> <server> <port> <COMMIT|ABORT>\n");
		System.err.println("Note: Only ports 9000-9060 may be used on DCS machines\n");
            	System.exit(-1);
        }
    }
}

class Server {
	
	
	ServerSocket myserver = null;
	Socket myclient = null;

	Server(int port, int clients){

	startListening(port); 
				}
		

// start server socket on port PORT, listen for CLIENTS

//  maybe error if cant listen

// for each client create a client socket and bind addresses

	myclient = myserver.accept();
	
	public void startListening(int port) {

	myserver = new ServerSocket(9000);
		
	}
}


class Client {
	
	Socket clientsocket = null;
	String status = null;
	int id = null;

	Client(int id, String host, int port, String status) {
	
	this.id = id;
	this.status = status;
	connect(host, port);
		
	}
	
	public void connect(String host, int port) {
		
		clientsocket = new Socket(host, port);
		
	}

}