gistfile1.rb

require 'socket'
require 'celluloid'

class Query
  attr_accessor :type, :url, :other

  def initialize (query_string)
    @type, @url, @other = query_string.split " "
  end

end

class AnswerWorker
  include Celluloid

  def process_get(query)
    dir_path = "server"
    filepath = dir_path + query.url

    if File.exists? filepath 
      @client.puts (File.open(filepath).read)
    else
      @client.puts "Can't find file"
    end

  end

  def process_req(query)
    process_get query if query.type == "GET"
  end

  def start(client)
    @client = client

    headers = "HTTP/1.1 200 OK\r\nDate: Tue, 14 Dec 2010 10:48:45 GMT\r\nServer: Ruby\r\nContent-Type: text/html; charset=iso-8859-1\r\n\r\n"
   
    client.puts headers
 
    loop {
      query = Query.new client.readline
      process_req query
    }   

  end
 
end

class HTTPServer
  include Celluloid

  def initialize(port)
    @port = port
  end

  def start
    @server = TCPServer.new(@port)
    client = nil
    pool = AnswerWorker.pool(size: 50)

    loop {
      client = @server.accept
      pool.start! client
    }
  end
end

hs = HTTPServer.new 3000 
hs.start