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# -*- encoding: utf-8 -*-
#
# Copyright © 2012 Red Hat, Inc
#
# Author: Eoghan Glynn <eglynn@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.
"""Handler for producing image metering messages from glance notification
events.
"""
from oslo.config import cfg
from ceilometer import plugin
from ceilometer import sample
OPTS = [
cfg.StrOpt('glance_control_exchange',
default='glance',
help="Exchange name for Glance notifications."),
]
cfg.CONF.register_opts(OPTS)
class ImageBase(plugin.NotificationBase):
"""Base class for image counting."""
@staticmethod
def get_exchange_topics(conf):
"""Return a sequence of ExchangeTopics defining the exchange and
topics to be connected for this plugin.
"""
return [
plugin.ExchangeTopics(
exchange=conf.glance_control_exchange,
topics=set(topic + ".info"
for topic in conf.notification_topics)),
]
class ImageCRUDBase(ImageBase):
event_types = [
'image.update',
'image.upload',
'image.delete',
]
class ImageCRUD(ImageCRUDBase):
def process_notification(self, message):
yield sample.Sample.from_notification(
name=message['event_type'],
type=sample.TYPE_DELTA,
unit='image',
volume=1,
resource_id=message['payload']['id'],
user_id=None,
project_id=message['payload']['owner'],
message=message)
class Image(ImageCRUDBase):
def process_notification(self, message):
yield sample.Sample.from_notification(
name='image',
type=sample.TYPE_GAUGE,
unit='image',
volume=1,
resource_id=message['payload']['id'],
user_id=None,
project_id=message['payload']['owner'],
message=message)
class ImageSize(ImageCRUDBase):
def process_notification(self, message):
yield sample.Sample.from_notification(
name='image.size',
type=sample.TYPE_GAUGE,
unit='B',
volume=message['payload']['size'],
resource_id=message['payload']['id'],
user_id=None,
project_id=message['payload']['owner'],
message=message)
class ImageDownload(ImageBase):
"""Emit image_download sample when an image is downloaded."""
event_types = ['image.send']
def process_notification(self, message):
yield sample.Sample.from_notification(
name='image.download',
type=sample.TYPE_DELTA,
unit='B',
volume=message['payload']['bytes_sent'],
resource_id=message['payload']['image_id'],
user_id=message['payload']['receiver_user_id'],
project_id=message['payload']['receiver_tenant_id'],
message=message)
class ImageServe(ImageBase):
"""Emit image_serve sample when an image is served out."""
event_types = ['image.send']
def process_notification(self, message):
yield sample.Sample.from_notification(
name='image.serve',
type=sample.TYPE_DELTA,
unit='B',
volume=message['payload']['bytes_sent'],
resource_id=message['payload']['image_id'],
user_id=None,
project_id=message['payload']['owner_id'],
message=message)
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