aodh/ceilometer/api/hooks.py
Angus Salkeld c9065364d4 Allow posting samples via the rest API (v2)
Currently this requires admin, the same as the other API

blueprint meter-post-api
Change-Id: Idfdd077999115140da94621a6920795ac0b8fe4e
2013-05-10 13:54:19 +10:00

70 lines
2.2 KiB
Python

# -*- encoding: utf-8 -*-
#
# Copyright © 2012 New Dream Network, LLC (DreamHost)
#
# Author: Doug Hellmann <doug.hellmann@dreamhost.com>
# Angus Salkeld <asalkeld@redhat.com>
#
# 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.config import cfg
from pecan import hooks
from ceilometer import pipeline
from ceilometer import publisher
from ceilometer import storage
from ceilometer import transformer
class ConfigHook(hooks.PecanHook):
"""Attach the configuration object to the request
so controllers can get to it.
"""
def before(self, state):
state.request.cfg = cfg.CONF
class DBHook(hooks.PecanHook):
def before(self, state):
storage_engine = storage.get_engine(state.request.cfg)
state.request.storage_engine = storage_engine
state.request.storage_conn = storage_engine.get_connection(
state.request.cfg)
# def after(self, state):
# print 'method:', state.request.method
# print 'response:', state.response.status
class PipelineHook(hooks.PecanHook):
'''Create and attach a pipeline to the request so that
new samples can be posted via the /v2/meters/ API.
'''
pipeline_manager = None
def __init__(self):
if self.__class__.pipeline_manager is None:
# this is done here as the cfg options are not available
# when the file is imported.
self.__class__.pipeline_manager = pipeline.setup_pipeline(
transformer.TransformerExtensionManager(
'ceilometer.transformer'),
publisher.PublisherExtensionManager(
'ceilometer.publisher'))
def before(self, state):
state.request.pipeline_manager = self.pipeline_manager