/usr/lib/python2.7/dist-packages/ceilometer/notifier.py is in python-ceilometer 2014.1-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# Copyright © 2013 eNovance
#
# 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 ceilometer.openstack.common import context as req_context
from ceilometer.openstack.common import log as logging
from ceilometer import pipeline
from ceilometer import transformer
from ceilometer.openstack.common.gettextutils import _ # noqa
from stevedore import extension
LOG = logging.getLogger(__name__)
_notification_manager = None
_pipeline_manager = None
def _load_notification_manager():
global _notification_manager
namespace = 'ceilometer.notification'
LOG.debug(_('loading notification handlers from %s'), namespace)
_notification_manager = extension.ExtensionManager(
namespace=namespace,
invoke_on_load=True)
if not list(_notification_manager):
LOG.warning(_('Failed to load any notification handlers for %s'),
namespace)
def _load_pipeline_manager():
global _pipeline_manager
_pipeline_manager = pipeline.setup_pipeline(
transformer.TransformerExtensionManager(
'ceilometer.transformer',
),
)
def _process_notification_for_ext(ext, context, notification):
with _pipeline_manager.publisher(context) as p:
# FIXME(dhellmann): Spawn green thread?
p(list(ext.obj.to_samples(notification)))
def notify(context, message):
"""Sends a notification as a meter using Ceilometer pipelines."""
if not _notification_manager:
_load_notification_manager()
if not _pipeline_manager:
_load_pipeline_manager()
_notification_manager.map(
_process_notification_for_ext,
context=context or req_context.get_admin_context(),
notification=message)
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