1# Copyright (C) 2017 Nippon Telegraph and Telephone Corporation. 2# 3# Licensed under the Apache License, Version 2.0 (the "License"); 4# you may not use this file except in compliance with the License. 5# You may obtain a copy of the License at 6# 7# http://www.apache.org/licenses/LICENSE-2.0 8# 9# Unless required by applicable law or agreed to in writing, software 10# distributed under the License is distributed on an "AS IS" BASIS, 11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or 12# implied. 13# See the License for the specific language governing permissions and 14# limitations under the License. 15 16""" 17Database implementation for Zebra protocol service. 18""" 19 20from __future__ import absolute_import 21 22from sqlalchemy import create_engine 23from sqlalchemy.orm import sessionmaker 24 25from ryu import cfg 26 27# Configuration parameters for Zebra service 28CONF = cfg.CONF['zapi'] 29 30# Connect to database 31ENGINE = create_engine(CONF.db_url) 32 33Session = sessionmaker(bind=ENGINE) 34""" 35Session class connecting to database 36""" 37 38# Create all tables 39from . import base 40from . import interface 41from . import route 42base.Base.metadata.create_all(ENGINE) 43