module Fog module CDN def self.[](provider) new(:provider => provider) end def self.new(attributes) attributes = attributes.dup # prevent delete from having side effects provider = attributes.delete(:provider).to_s.downcase.to_sym if providers.include?(provider) require "fog/#{provider}/cdn" return Fog::CDN.const_get(Fog.providers[provider]).new(attributes) end raise ArgumentError, "#{provider} is not a recognized cdn provider" end def self.providers Fog.services[:cdn] end end end