#Copyright 2021 <NAME>, <NAME>, <NAME>
#
#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.

###############################################################################
# 
# Utility functions for loading and saving the compressed model.
#
###############################################################################

import pickle
import bz2


# Compresses and saves the model.
# Note: Use '.pbz2' extension for the compressed file.
def compress_pickle(filename, data):
    with bz2.BZ2File(filename, 'w') as f: 
        pickle.dump(data, f)

# Loads and decompresses the compressed model.
def decompress_pickle(filename):
    with bz2.BZ2File(filename, 'rb') as f:
        data = pickle.load(f)
    return data
