designate/moniker/storage/__init__.py

61 lines
1.7 KiB
Python

# Copyright 2012 Managed I.T.
#
# Author: Kiall Mac Innes <kiall@managedit.ie>
#
# 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.
from urlparse import urlparse
from stevedore import driver
from moniker.openstack.common import cfg
from moniker.openstack.common import log
LOG = log.getLogger(__name__)
DRIVER_NAMESPACE = 'moniker.storage'
cfg.CONF.register_opts([
cfg.StrOpt(
'database_connection',
default='sqlite:///moniker.db',
help='The database driver to use')
])
def register_opts(conf):
engine = get_engine(conf)
engine.register_opts(conf)
def get_engine(conf):
engine_name = urlparse(conf.database_connection).scheme
LOG.debug('looking for %r engine in %r', engine_name, DRIVER_NAMESPACE)
mgr = driver.DriverManager(
DRIVER_NAMESPACE,
engine_name,
invoke_on_load=True)
return mgr.driver
def get_connection(conf):
engine = get_engine(conf)
engine.register_opts(conf)
return engine.get_connection(conf)
def reset_data(*args, **kwargs):
""" Reset the DB to default - Used for testing purposes """
from moniker.storage.sqla.models import Base
conn = get_connection(cfg.CONF)
Base.metadata.drop_all(conn.session.bind)