text: # Copyright 2019 The Forte Authors. All Rights Reserved.
  #
  # 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.
  from forte.common.exception import ProcessExecutionException
  from forte.data.data_pack import DataPack
  from forte.data.multi_pack import MultiPack
  from forte.processors.base.writers import JsonPackWriter, MultiPackWriter
  
  
  class PackNameJsonPackWriter(JsonPackWriter):
      def sub_output_path(self, pack: DataPack) -> str:
          if pack.pack_name is None:
              raise ValueError(
                  "Cannot use DocIdJsonPackWriter when [pack_name] of the pack "
                  "is not set.")
          return pack.pack_name
  
  
  class PackNameMultiPackWriter(MultiPackWriter):
      def pack_name(self, pack: DataPack) -> str:
          name = pack.pack_name
          if name is None:
              raise ProcessExecutionException(
                  'Cannot used the DocIdMultiPackWriter because the [pack_name] '
                  'is not assigned for the pack.')
          return name
  
      def multipack_name(self, pack: MultiPack) -> str:
          name = pack.pack_name
          if name is None:
              raise ProcessExecutionException(
                  'Cannot used the DocIdMultiPackWriter because the doc id is '
                  'not assigned for the pack.')
          return name
  