    # File lib/fog/ecloud/requests/compute/get_operating_system.rb, line 10
            def get_operating_system(uri)
              os_name, compute_pool_id = uri.match(/operatingsystems\/(.*)\/computepools\/(\d+)$/).captures
              compute_pool_id          = compute_pool_id.to_i

              operating_systems = self.data[:operating_systems].values.select{|os| os[:compute_pool_id] == compute_pool_id}
              operating_system = operating_systems.find{|os| os[:short_name] == os_name}

              if operating_system
                response(:body => Fog::Ecloud.slice(operating_system, :id, :compute_pool_id, :short_name))
              else response(:status => 404) # ?
              end
            end