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# Copyright (c) 2019-2020 AT&T Intellectual Property. All rights reserved.
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# 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.
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# ============LICENSE_END=========================================================

""" SqlAlchemy ORM engine for postgresSql dti database """

from sqlalchemy import create_engine

class DaoBase:
    _engine = None

    @staticmethod
    def init_db(dbConStr):
        if DaoBase._engine:
            return
        DaoBase._engine = create_engine(dbConStr)

    @staticmethod
    def getDbEngine():
        return DaoBase._engine