73c9150afe
Implement a Counter class for use by notification plugins. Define a base class for Notification plugins. Define a dispatcher class for notification events to be passed to the plugins. Add a notification plugin for instance creation and "instance" counters. Add a reusable function for turning a Counter into a metering event dictionary. Change-Id: Iaa626b98e1a661ed31cc8b8e95263c111df20888
59 lines
2.0 KiB
Python
59 lines
2.0 KiB
Python
# -*- encoding: utf-8 -*-
|
|
#
|
|
# Copyright © 2012 eNovance <licensing@enovance.com>
|
|
#
|
|
# Author: Julien Danjou <julien@danjou.info>
|
|
#
|
|
# 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 nova import flags
|
|
from nova import log as logging
|
|
from nova import manager
|
|
|
|
from ceilometer import rpc
|
|
from ceilometer import meter
|
|
from ceilometer.collector import dispatcher
|
|
|
|
# FIXME(dhellmann): There must be another way to do this.
|
|
# Import rabbit_notifier to register notification_topics flag
|
|
import nova.notifier.rabbit_notifier
|
|
|
|
FLAGS = flags.FLAGS
|
|
# FIXME(dhellmann): We need to have the main program set up logging
|
|
# correctly so messages from modules outside of the nova package
|
|
# appear in the output.
|
|
LOG = logging.getLogger('nova.' + __name__)
|
|
|
|
|
|
COMPUTE_COLLECTOR_NAMESPACE = 'ceilometer.collector.compute'
|
|
|
|
|
|
class CollectorManager(manager.Manager):
|
|
def init_host(self):
|
|
self.connection = rpc.Connection(flags.FLAGS)
|
|
self.compute_handler = dispatcher.NotificationDispatcher(
|
|
COMPUTE_COLLECTOR_NAMESPACE,
|
|
self._publish_counter,
|
|
)
|
|
self.connection.declare_topic_consumer(
|
|
topic='%s.info' % flags.FLAGS.notification_topics[0],
|
|
callback=self.compute_handler.notify)
|
|
self.connection.consume_in_thread()
|
|
|
|
def _publish_counter(self, notice, c):
|
|
"""Create a metering message for the counter and publish it."""
|
|
msg = meter.meter_message_from_counter(notice, c)
|
|
LOG.info('PUBLISH: %s', str(msg))
|
|
# FIXME(dhellmann): Need to publish the message on the
|
|
# metering queue.
|