# Copyright (c) 2022, NVIDIA CORPORATION. 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.
"""Decomposers for Python builtin objects."""
from collections import OrderedDict
from datetime import datetime
from typing import Any
from nvflare.fuel.utils.fobs.datum import DatumManager
from nvflare.fuel.utils.fobs.decomposer import Decomposer
[docs]class TupleDecomposer(Decomposer):
[docs] def supported_type(self):
return tuple
[docs] def decompose(self, target: tuple, manager: DatumManager = None) -> Any:
return list(target)
[docs] def recompose(self, data: Any, manager: DatumManager = None) -> tuple:
return tuple(data)
[docs]class SetDecomposer(Decomposer):
[docs] def supported_type(self):
return set
[docs] def decompose(self, target: set, manager: DatumManager = None) -> Any:
return list(target)
[docs] def recompose(self, data: Any, manager: DatumManager = None) -> set:
return set(data)
[docs]class OrderedDictDecomposer(Decomposer):
[docs] def supported_type(self):
return OrderedDict
[docs] def decompose(self, target: OrderedDict, manager: DatumManager = None) -> Any:
return list(target.items())
[docs] def recompose(self, data: Any, manager: DatumManager = None) -> OrderedDict:
return OrderedDict(data)
[docs]class DatetimeDecomposer(Decomposer):
[docs] def supported_type(self):
return datetime
[docs] def decompose(self, target: datetime, manager: DatumManager = None) -> Any:
return target.isoformat()
[docs] def recompose(self, data: Any, manager: DatumManager = None) -> datetime:
return datetime.fromisoformat(data)