Source code for nvflare.app_common.utils.json_utils

# 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
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import inspect
import json

import numpy as np


[docs]class ObjectEncoder(json.JSONEncoder):
[docs] def default(self, obj): if hasattr(obj, "to_json"): return self.default(obj.to_json()) if isinstance(obj, np.integer): return int(obj) if isinstance(obj, np.floating): return float(obj) if isinstance(obj, np.ndarray): return obj.tolist() elif hasattr(obj, "__dict__"): d = dict( (key, value) for key, value in inspect.getmembers(obj) if not key.startswith("__") and not inspect.isabstract(value) and not inspect.isbuiltin(value) and not inspect.isfunction(value) and not inspect.isgenerator(value) and not inspect.isgeneratorfunction(value) and not inspect.ismethod(value) and not inspect.ismethoddescriptor(value) and not inspect.isroutine(value) ) return self.default(d) return super(ObjectEncoder, self).default(obj)