Source code for aodh.api.hooks
#
# Copyright 2012 New Dream Network, LLC (DreamHost)
#
# 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 oslo_policy import policy
from pecan import hooks
[docs]class ConfigHook(hooks.PecanHook):
"""Attach the configuration and policy enforcer object to the request.
That allows controllers to get it.
"""
def __init__(self, conf):
self.conf = conf
self.enforcer = policy.Enforcer(conf, default_rule="default")
[docs] def before(self, state):
state.request.cfg = self.conf
state.request.enforcer = self.enforcer
[docs]class DBHook(hooks.PecanHook):
def __init__(self, alarm_conn):
self.storage = alarm_conn
[docs] def before(self, state):
state.request.storage = self.storage
[docs]class TranslationHook(hooks.PecanHook):
[docs] def after(self, state):
# After a request has been done, we need to see if
# ClientSideError has added an error onto the response.
# If it has we need to get it info the thread-safe WSGI
# environ to be used by the ParsableErrorMiddleware.
if hasattr(state.response, 'translatable_error'):
state.request.environ['translatable_error'] = (
state.response.translatable_error)