69b0497ab9
openstack.common was updated with the latest oslo-incubator changes. rpc and notif were manually removed. DB layer was modified to adapt to the changes done in Oslo. '# noqa' was also removed from imports. Also after new release of oslo.messaging appeared, we also needed to update openstack.common to make Climate work with oslo. Change-Id: I1b5ce64f8d4906d1fcfea9379d115b7bb2ec3f7b Closes-Bug: #1237896 Closes-Bug: #1284749 Partial-bug: #1253497 Co-Authored-By: Pablo Fernando Cargnelutti <pablo.fernando.cargnelutti@intel.com> Co-Authored-By: Dina Belova <dbelova@mirantis.com>
137 lines
3.9 KiB
Python
137 lines
3.9 KiB
Python
# -*- coding: utf-8 -*-
|
|
#
|
|
# Author: François Rossigneux <francois.rossigneux@inria.fr>
|
|
#
|
|
# 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.
|
|
|
|
"""Defines interface for DB access.
|
|
|
|
Functions in this module are imported into the climate.db namespace. Call these
|
|
functions from climate.db namespace, not the climate.db.api namespace.
|
|
|
|
All functions in this module return objects that implement a dictionary-like
|
|
interface.
|
|
|
|
**Related Flags**
|
|
|
|
:db_backend: string to lookup in the list of LazyPluggable backends.
|
|
`sqlalchemy` is the only supported backend right now.
|
|
|
|
:sql_connection: string specifying the sqlalchemy connection to use, like:
|
|
`sqlite:///var/lib/climate/climate.sqlite`.
|
|
|
|
"""
|
|
|
|
from climate.openstack.common.db import api as db_api
|
|
from climate.openstack.common.db import options as db_options
|
|
from climate.openstack.common import log as logging
|
|
|
|
_BACKEND_MAPPING = {
|
|
'sqlalchemy': 'climate.db.sqlalchemy.utils',
|
|
}
|
|
|
|
IMPL = db_api.DBAPI(db_options.CONF.database.backend,
|
|
backend_mapping=_BACKEND_MAPPING)
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
|
|
def setup_db():
|
|
"""Set up database, create tables, etc.
|
|
|
|
Return True on success, False otherwise
|
|
"""
|
|
return IMPL.setup_db()
|
|
|
|
|
|
def drop_db():
|
|
"""Drop database.
|
|
|
|
Return True on success, False otherwise
|
|
"""
|
|
return IMPL.drop_db()
|
|
|
|
|
|
## Helpers for building constraints / equality checks
|
|
|
|
|
|
def constraint(**conditions):
|
|
"""Return a constraint object suitable for use with some updates."""
|
|
return IMPL.constraint(**conditions)
|
|
|
|
|
|
def equal_any(*values):
|
|
"""Return an equality condition object suitable for use in a constraint.
|
|
|
|
Equal_any conditions require that a model object's attribute equal any
|
|
one of the given values.
|
|
"""
|
|
return IMPL.equal_any(*values)
|
|
|
|
|
|
def not_equal(*values):
|
|
"""Return an inequality condition object suitable for use in a constraint.
|
|
|
|
Not_equal conditions require that a model object's attribute differs from
|
|
all of the given values.
|
|
"""
|
|
return IMPL.not_equal(*values)
|
|
|
|
|
|
def to_dict(func):
|
|
def decorator(*args, **kwargs):
|
|
res = func(*args, **kwargs)
|
|
|
|
if isinstance(res, list):
|
|
return [item.to_dict() for item in res]
|
|
|
|
if res:
|
|
return res.to_dict()
|
|
else:
|
|
return None
|
|
|
|
return decorator
|
|
|
|
|
|
def get_free_periods(resource_id, start_date, end_date, duration):
|
|
"""Returns a list of free periods."""
|
|
return IMPL.get_free_periods(resource_id, start_date, end_date, duration)
|
|
|
|
|
|
def get_full_periods(resource_id, start_date, end_date, duration):
|
|
"""Returns a list of full periods."""
|
|
return IMPL.get_full_periods(resource_id, start_date, end_date, duration)
|
|
|
|
|
|
def reservation_ratio(resource_id, start_date, end_date):
|
|
return IMPL.reservation_ratio(resource_id, start_date, end_date)
|
|
|
|
|
|
def availability_time(resource_id, start_date, end_date):
|
|
return IMPL.availability_time(resource_id, start_date, end_date)
|
|
|
|
|
|
def reservation_time(resource_id, start_date, end_date):
|
|
return IMPL.reservation_time(resource_id, start_date, end_date)
|
|
|
|
|
|
def number_of_reservations(resource_id, start_date, end_date):
|
|
return IMPL.number_of_reservations(resource_id, start_date, end_date)
|
|
|
|
|
|
def longest_lease(resource_id, start_date, end_date):
|
|
return IMPL.longest_lease(resource_id, start_date, end_date)
|
|
|
|
|
|
def shortest_lease(resource_id, start_date, end_date):
|
|
return IMPL.shortest_lease(resource_id, start_date, end_date)
|