receive data from one client and forward data to tcp server on remote

gistfile1.rb

require 'rubygems'
require 'eventmachine'
require "socket"

module GwServer
  
  # @server_socket = TCPSocket.open('127.0.0.1', 3000)
  # @queue = []
  
  class GwTcpClient < EventMachine::Connection
    
    def notify_readable 
        received_data = @io.read_nonblock(4096)
        puts "INFO: notify_readable() => #{received_data.inspect}" 
        # Just for testing purposes: 
        sleep 1
    end
    
    def post_init
        puts "sending request to server"
        # send_data "GET / HTTP/1.1\r\nHost: www.baidu.com\r\nConnection: close\r\n\r\n"
    end
    
    def receive_data data
       puts "recvs: #{data}"
       send_data_to_tcp_server(data)
    end
    
    def send_data_to_tcp_server(data)
      puts "send data:#{data}"
      send_data data
    end
    
  end
  
  class GwDataServer < EM::Connection
    attr_accessor :server_socket    
    
    def post_init
        # puts "Acabei de me conectar"
        # EM.start_server "127.0.0.0", 3000, TcpClient, self
    end
    
    def receive_data(data)
      puts "recieve data:#{data}"

      # send_data ">>>you sent: #{data}"
      @server_socket.send_data "#{data}\n"
      
    end
    
    def send_data_to_tcpserver data
      @server_socket.puts "#{data}\n"      
    end
    
    def get_message_from_tcp_server
      
    end
    
  end
  
  
  def self.run
    EM.run do 
      puts "dataServer running..."
      @server_socket = EventMachine::connect '127.0.0.1', 3000, GwTcpClient
      
      EM.start_server("127.0.0.1", 8081, GwDataServer) do |s|
        s.server_socket = @server_socket
        # conn = EventMachine.watch(@server_socket, TcpClient)
        # conn.notify_readable = true 
      end
      
    end
  end
    
      

end

GwServer.run


#############documents##########################
## this program will start a server to receive data from local client, it would send data to tcp server on
## remote after receive data from local client.