text: # Copyright (C) 2018 DataArt
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  # =============================================================================
  
  
  class DataFormat(object):
      """Data format class."""
  
      TEXT_DATA_TYPE = 'text'
      BINARY_DATA_TYPE = 'binary'
  
      def __init__(self, name, data_type):
          self._name = name
          self._data_type = data_type
  
      @property
      def name(self):
          return self._name
  
      @property
      def data_type(self):
          return self._data_type
  
      @property
      def text_data_type(self):
          return self._data_type == self.TEXT_DATA_TYPE
  
      @property
      def binary_data_type(self):
          return self._data_type == self.BINARY_DATA_TYPE
  
      def encode(self, data):
          raise NotImplementedError
  
      def decode(self, data):
          raise NotImplementedError
  