84 lines
2.7 KiB
Python
84 lines
2.7 KiB
Python
# Copyright 2013 eNovance
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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Driver for the Python logging package that sends log records as a notification.
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"""
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import logging
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from oslo_config import cfg
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from oslo_messaging.notify import notifier
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class LoggingNotificationHandler(logging.Handler):
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"""Handler for logging to the messaging notification system.
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Each time the application logs a message using the :py:mod:`logging`
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module, it will be sent as a notification. The severity used for the
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notification will be the same as the one used for the log record.
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This can be used into a Python logging configuration this way::
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[handler_notifier]
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class=oslo_messaging.LoggingNotificationHandler
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level=ERROR
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args=('rabbit:///')
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"""
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CONF = cfg.CONF
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"""Default configuration object used, subclass this class if you want to
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use another one.
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"""
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def __init__(self, url, publisher_id=None, driver=None,
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topic=None, serializer=None):
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self.notifier = notifier.Notifier(
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notifier.get_notification_transport(self.CONF, url),
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publisher_id, driver, serializer() if serializer else None,
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topics=(topic if isinstance(topic, list) or topic is None
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else [topic]))
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logging.Handler.__init__(self)
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def emit(self, record):
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"""Emit the log record to the messaging notification system.
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:param record: A log record to emit.
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"""
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method = getattr(self.notifier, record.levelname.lower(), None)
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if not method:
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return
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method(
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{},
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'logrecord',
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{
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'name': record.name,
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'levelno': record.levelno,
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'levelname': record.levelname,
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'exc_info': record.exc_info,
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'pathname': record.pathname,
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'lineno': record.lineno,
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'msg': record.getMessage(),
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'funcName': record.funcName,
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'thread': record.thread,
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'processName': record.processName,
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'process': record.process,
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'extra': getattr(record, 'extra', None),
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}
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)
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