blob: 4441c43cd03b7120d246e0839450dfc991d92674 [file] [log] [blame]
#!/usr/bin/env python3
# -*- 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()