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


/**
 * An server that creates Sandbox objects for Agent
 * objects
 *
 * @version 1.0
 * @author  Prof. David Bernstein, James Madison Univeristy
 */
public class SandboxServer
{
    public static final int    PORT = 9200;
    public static final String EXT  = ".class";


    /**
     * The entry point of the application
     *
     * @param args   The command-line arguments
     */
    public static void main(String[] args)
    {
       Agent                agent;
       byte[]               byteCodes;
       Class                agentClass;
       FileOutputStream     out;
       ObjectInputStream    in;
       Sandbox              sandbox;
       ServerSocket         ss;
       Socket               s;
       String               agentName;


       try 
       {
          ss = new ServerSocket(PORT);

          while (true) 
          {
             s = ss.accept();
             in = new ObjectInputStream(s.getInputStream());

             // Read the class name
             agentName = (String)in.readObject();

             // Read the byte codes
             byteCodes = (byte[])in.readObject();

             // Save the class on the local file system
             // for tracking purposes
             out = new FileOutputStream(agentName+".class");
             out.write(byteCodes);

             // Read the Agent
             agent = (Agent)in.readObject();

             // Run the Agent in its own Sandbox
             sandbox = new Sandbox(agent);
             sandbox.start();
             

             in.close();
             s.close();
          }
       } 
       catch (Exception ex) 
       {
          ex.printStackTrace();
       }
	
    }
    
}