mtortonesi/sisfc

#!/usr/bin/env ruby

begin
  require 'sisfc'
  require 'sisfc/evaluation'
rescue LoadError
  require 'rubygems'
  require 'sisfc'
  require 'sisfc/evaluation'
end


def do_abort(message)
  abort <<-EOS.gsub(/^\s+\|/, '')
    |#{message}
    |
    |Usage:
    |    #{File.basename(__FILE__)} simulator_config_file vm_allocation_config_file
    |
  EOS
end


if File.expand_path(__FILE__) == File.expand_path($0)
  # make sure both required arguments were given
  case ARGV.size
  when 1 then
    do_abort("Missing VM allocation configuration file!")
  when 0 then
    do_abort("Missing simulator and VM allocation configuration files!")
  end

  # make sure simulator config file exists
  unless File.exists? ARGV[0]
    do_abort("Invalid simulator configuration file!")
  end

  # make sure vm allocation config file exists
  unless File.exists? ARGV[1]
    do_abort("Invalid VM allocation configuration file!")
  end

  # load simulation configuration
  conf = SISFC::Configuration.load_from_file(ARGV[0])

  # load vm allocation
  vm_allocation = eval(File.read(ARGV[1]))

  # create a simulator and launch it
  sim = SISFC::Simulation.new(configuration: conf,
                              evaluator: SISFC::Evaluator.new(conf))
  res = sim.evaluate_allocation(vm_allocation)

  # Print results
  puts 'Result:'
  puts res
end