# -------------------------------------------------------------------------
#   Copyright (c) 2015-2018 AT&T Intellectual Property
#
#   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.
#
# -------------------------------------------------------------------------


import yaml
import json

from osdf.utils.programming_utils import MetaSingleton


class CoreConfig(metaclass=MetaSingleton):
    core_config = None

    def get_core_config(self, config_file=None):
        if self.core_config is None:
            self.core_config = yaml.safe_load(open(config_file))
        return self.core_config