115 lines
3.8 KiB
Python
115 lines
3.8 KiB
Python
|
|
# Copyright 2011 OpenStack Foundation.
|
|
# All Rights Reserved.
|
|
# Copyright 2013 Red Hat, Inc.
|
|
#
|
|
# 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.
|
|
|
|
import abc
|
|
|
|
from oslo.config import cfg
|
|
from stevedore import named
|
|
|
|
from oslo import messaging
|
|
from oslo.messaging.openstack.common.gettextutils import _
|
|
from oslo.messaging.openstack.common import log as logging
|
|
from oslo.messaging.openstack.common import timeutils
|
|
from oslo.messaging.openstack.common import uuidutils
|
|
|
|
_notifier_opts = [
|
|
cfg.MultiStrOpt('notification_driver',
|
|
default=[],
|
|
help='Driver or drivers to handle sending notifications'),
|
|
cfg.ListOpt('notification_topics',
|
|
default=['notifications', ],
|
|
deprecated_name='topics',
|
|
deprecated_group='rpc_notifier2',
|
|
help='AMQP topic used for openstack notifications'),
|
|
]
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
|
|
class _Driver(object):
|
|
|
|
__metaclass__ = abc.ABCMeta
|
|
|
|
def __init__(self, conf, topics, transport):
|
|
self.conf = conf
|
|
self.topics = topics
|
|
self.transport = transport
|
|
|
|
@abc.abstractmethod
|
|
def notify(self, context, msg, priority):
|
|
pass
|
|
|
|
|
|
class Notifier(object):
|
|
|
|
def __init__(self, conf, publisher_id,
|
|
driver=None, topic=None, transport=None):
|
|
self.conf = conf
|
|
self.conf.register_opts(_notifier_opts)
|
|
|
|
self.publisher_id = publisher_id
|
|
|
|
self._driver_names = ([driver] if driver is not None
|
|
else conf.notification_driver)
|
|
|
|
self._topics = ([topic] if topic is not None
|
|
else conf.notification_topics)
|
|
self._transport = transport or messaging.get_transport(conf)
|
|
|
|
self._driver_mgr = named.NamedExtensionManager(
|
|
'oslo.messaging.notify.drivers',
|
|
names=self._driver_names,
|
|
invoke_on_load=True,
|
|
invoke_args=[self.conf],
|
|
invoke_kwds={
|
|
'topics': self._topics,
|
|
'transport': self._transport,
|
|
},
|
|
)
|
|
|
|
def _notify(self, context, event_type, payload, priority):
|
|
msg = dict(message_id=uuidutils.generate_uuid(),
|
|
publisher_id=self.publisher_id,
|
|
event_type=event_type,
|
|
priority=priority,
|
|
payload=payload,
|
|
timestamp=str(timeutils.utcnow()))
|
|
|
|
def do_notify(ext):
|
|
try:
|
|
ext.obj.notify(context, msg, priority)
|
|
except Exception as e:
|
|
LOG.exception(_("Problem '%(e)s' attempting to send to "
|
|
"notification system. Payload=%(payload)s")
|
|
% dict(e=e, payload=payload))
|
|
self._driver_mgr.map(do_notify)
|
|
|
|
def debug(self, context, event_type, payload):
|
|
self._notify(context, event_type, payload, 'DEBUG')
|
|
|
|
def info(self, context, event_type, payload):
|
|
self._notify(context, event_type, payload, 'INFO')
|
|
|
|
def warn(self, context, event_type, payload):
|
|
self._notify(context, event_type, payload, 'WARN')
|
|
|
|
def error(self, context, event_type, payload):
|
|
self._notify(context, event_type, payload, 'ERROR')
|
|
|
|
def critical(self, context, event_type, payload):
|
|
self._notify(context, event_type, payload, 'CRITICAL')
|