Orbit/app/jobs/nccu_calendar.rb

class NccuCalendar 
  require 'open-uri'
  require 'tempfile'  

  @queue = :high

  def self.perform()
  temp_file = Tempfile.new('new_cal')  
  temp_file << open('http://events.nccu.edu.tw/Month').read

   FileUtils.mv(temp_file, File.join(Rails.root, 'public/static', 'nccu_calendar.xml'))

    puts "NccuCalendar Synced"
  end
end