class IBM < Fog::Bin class << self def class_for(key) case key when :compute Fog::Compute::IBM when :storage Fog::Storage::IBM else raise ArgumentError, "Unsupported #{self} service: #{key}" end end def [](service) @@connections ||= Hash.new do |hash, key| hash[key] = case key when :compute Fog::Compute.new(:provider => 'IBM') when :storage Fog::Storage.new(:provider => 'Storage') else raise ArgumentError, "Unrecognized service: #{service}" end end @@connections[service] end def services Fog::IBM.services end end end