| #!/usr/bin/env python |
| # -*- encoding: utf-8 -*- |
| |
| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you 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. |
| |
| '''serializer.py: common python serializer for heron''' |
| from abc import abstractmethod |
| |
| try: |
| import cPickle as pickle |
| except: |
| import pickle |
| |
| import heronpy.api.cloudpickle as cloudpickle |
| |
| class IHeronSerializer(object): |
| """Serializer interface for Heron""" |
| @abstractmethod |
| def initialize(self, config): |
| """Initializes the serializer""" |
| pass |
| |
| @abstractmethod |
| def serialize(self, obj): |
| """Serialize an object |
| |
| :param obj: The object to be serialized |
| :returns: Serialized object as byte string |
| """ |
| pass |
| |
| @abstractmethod |
| def deserialize(self, input_str): |
| """Deserialize an object |
| |
| :param input_str: Serialized object as byte string |
| :returns: Deserialized object |
| """ |
| pass |
| |
| class PythonSerializer(IHeronSerializer): |
| """Default serializer""" |
| def initialize(self, config=None): |
| pass |
| |
| def serialize(self, obj): |
| return cloudpickle.dumps(obj) |
| |
| def deserialize(self, input_str): |
| return pickle.loads(input_str) |
| |
| default_serializer = PythonSerializer() |