snippet.rb

      # unparse into JSON by iterating over the metadata fields in a constant
      # order.
      def cookbook_json
        json_str = "{\n" 
        fields = JSON_FIELDS.map do |field|
          field_value = send(field)
          if (field_value.respond_to?(:empty?) && field_value.empty?)
            field_json_state = nil
          else
            field_json_state = JSON::PRETTY_STATE_PROTOTYPE.dup
          end
          %Q{  #{field.to_json(nil,1)}: #{field_value.to_json(field_json_state,1)}}
        end
        json_str << fields.join(",\n")
        json_str << "\n}\n"
        json_str
      end