util.rb

# File lib/svengali/util.rb, line 64
def change_platform(platform_name_str)
  require "#{LIBNAME}/platforms/" + platform_name_str
  $platform_name = platform_name_str
end

# File lib/svengali/util.rb, line 77
def check_has_keys(params_hash,array_of_symbols)
  array_of_symbols.each{ |symbol|
    unless params_hash.has_key?(symbol)
      err_message_and_exit("please specify a value of :" + symbol.to_s() + "!")
    end
  }
end

# File lib/svengali/util.rb, line 35
def debug_p(str = "")
  if $output_debug_print
    puts "[DEBUG #{caller(1)[0]}] #{str}"
  end
end

# File lib/svengali/util.rb, line 69
def err_message_and_exit(str)
  debug_p str
  debug_p "I'm exiting!"

  exit()
end

# File lib/svengali/util.rb, line 100
def find_machines_on_range_by_ping(ipaddr_range_str)
  octets_arr = ipaddr_range_str.split(".")
  splited_last_octet = octets_arr[3].split("-")

  alive_hash = Hash.new()
  for last_octet in splited_last_octet[0].to_i .. splited_last_octet[1].to_i
    t = Thread.new do
      dest_ip_str = octets_arr[0] + "." + octets_arr[1] + "." + octets_arr[2] + "." + last_octet.to_s()
      if is_exist_by_ping(CLibIPAddr.new(dest_ip_str))
        alive_hash[dest_ip_str] = true
      end
    end
  end

  t.join

  return alive_hash
end

# File lib/svengali/util.rb, line 89
def is_exist_by_ping(ipaddr)
  # this execution returns at most 3sec after
  `ping #{ipaddr.to_s} -c 1 -w 3`
  result = ( $? == 0 ) ? true : false
  return result
end

# File lib/svengali/util.rb, line 45
def lazy_inp()
  debug_p(caller(1)[0] + " -> Lazily implemented. Here should be fixed if you have time.")
end

# File lib/svengali/util.rb, line 53
def load_plugin(plugin_name_str)
  #    open( File::dirname(__FILE__) + "/plugin/" + plugin_name_str + ".rb"){ |file|
  #      contents = file.read()
  #      contents = "class Machine\n" + contents + "\nend"
  #      eval(contents)
  #    }
  require "#{LIBNAME}/plugins/" + plugin_name_str
end

# File lib/svengali/util.rb, line 41
def not_inp()
  debug_p(caller(1)[0] + " -> Not implemented yet.")
end

# File lib/svengali/util.rb, line 49
def not_tested()
  debug_p(caller(1)[0] + " -> Not tested yet.")
end

# File lib/svengali/util.rb, line 31
def stop_debug_print()
  $output_debug_print = false
end