Class: MaxCube::Runner

Inherits:
Object
  • Object
show all
Defined in:
lib/maxcube/runner.rb

Overview

Module that provides running of Cube clients: Network::TCP::Client and Network::UDP::Client

Constant Summary collapse

HELP_KEYS =

These will display help message.

%w[h -h help -help --help ? -?].freeze

Instance Method Summary collapse

Constructor Details

#initialize(argv) ⇒ Runner

Assigns command line arguments to internal variable.



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# File 'lib/maxcube/runner.rb', line 12

def initialize(argv)
  @argv = argv
end

Instance Method Details

#run ⇒ Object

Runs either TCP or UDP client.



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# File 'lib/maxcube/runner.rb', line 17

def run
  help = @argv.size == 1 && HELP_KEYS.include?(@argv.first)
  wrong_args = @argv.size > 2

  if help || wrong_args
    if wrong_args
      puts "Wrong number of arguments: #{@argv.size} (expected: 0..2)"
    end
    puts "USAGE: ruby #{__FILE__} [<help>|<host>] [<port>]\n" \
         "  <help> - on of these: #{HELP_KEYS}\n\n" \
         "If no arguments are given, UDP discovery is performed.\n" \
         'Otherwise, TCP client is launched (unless help command entered).'
    exit
  end

  if @argv.empty?
    puts "No arguments given - performing UDP discovery ...\n" \
         "(For usage message, type one of these: #{HELP_KEYS})\n\n"
    client = MaxCube::Network::UDP::Client.new
    client.discovery
    client.close
    exit
  end

  client = MaxCube::Network::TCP::Client.new
  client.connect(*@argv)
end