//
//  Othecko 1.1
//
//  Steve Matuszek
//  Jack Freelander
//  University of North Carolina at Chapel Hill
//
//
//  RemoteSystem.java
//  Jack Freelander 1.0
//  
//
//  This class encapsulates the necessary information
//  needed to contact another machine (currently IP 
//  address and port number).
//

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


public class RemoteSystem implements Serializable
{
	private InetAddress address;
	private int port;
	
	public RemoteSystem(String machine, int port)
	{
		setAddress(machine);
		setPort(port);
	}
	
	public RemoteSystem(InetAddress ia, int port)
	{
		setAddress(ia);
		setPort(port);
	}
	
	public int getPort()            { return port; }
	public InetAddress getAddress() { return address; }
	
	public boolean setAddress(String s) 
	{
		if (s == null) 
		{
			return false;
		}
		
		try
		{ 
			address = InetAddress.getByName(s);
		}
		catch(Exception e)
		{
			e.printStackTrace(); 
			System.out.println("Failed to get address for host " + s);
			System.exit(0); 
		}     
		return (address!=null);
	}
	
	public boolean setAddress(InetAddress addr)
	{
		address=addr;
		return true;
	}
	
	public boolean setPort(int p)
	{ 
		port = p;
		return true;
	}
	
	public boolean equals(RemoteSystem rs)
	{
		if(rs==null) return false;
		return (rs.port==port && rs.address.equals(address));
	}

	
	public String toString()
	{
		return "Address: " + address.getHostAddress() + " Port: " + port;
	}
	
	public Socket giveMeASocket()
	{
		try
		{
			Socket s=new Socket(address,port);
			return s;
		}
		catch(Exception e)
		{
			e.printStackTrace();
			System.out.println("Unable to create a socket in RemoteSystem for address " 
				+ address.getHostName() + " on port " + port +"\n");
			return null;
		}
	}
}