OpenStack library for messaging
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# Copyright 2013 eNovance
# 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
# 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.
Driver for the Python logging package that sends log records as a notification.
import logging
from oslo.config import cfg
from oslo.messaging.notify import notifier
from oslo.messaging import transport
class LoggingNotificationHandler(logging.Handler):
"""Handler for logging to the messaging notification system.
Each time the application logs a message using the :py:mod:`logging`
module, it will be sent as a notification. The severity used for the
notification will be the same as the one used for the log record.
This can be used into a Python logging configuration this way::
"""Default configuration object used, subclass this class if you want to
use another one.
def __init__(self, url, publisher_id=None, driver=None,
topic=None, serializer=None):
self.notifier = notifier.Notifier(
transport.get_transport(self.CONF, url),
publisher_id, driver,
serializer() if serializer else None)
def emit(self, record):
"""Emit the log record to the messaging notification system.
:param record: A log record to emit.
method = getattr(self.notifier, record.levelname.lower(), None)
if not method:
'levelno': record.levelno,
'levelname': record.levelname,
'exc_info': record.exc_info,
'pathname': record.pathname,
'lineno': record.lineno,
'msg': record.getMessage(),
'funcName': record.funcName,
'thread': record.thread,
'processName': record.processName,
'process': record.process,
'extra': getattr(record, 'extra', None),