+# Copyright (C) 2022 Wind River Systems, Inc.
+#
+# 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.
+
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from flask_restx import fields
+import json
+
+from o2common.helper import o2logging
+logger = o2logging.get_logger(__name__)
+
+
+class Json2Dict(fields.Raw):
+
+ def format(self, value):
+ value2 = None
+ try:
+ value2 = json.loads(value) if value else None
+ except Exception as ex:
+ logger.warning(
+ f"Failed to loads json string: {value}, exception: {str(ex)}")
+ value2 = value
+ return value2