f903de3f10
Fix logging of debug, info and warning levels. Also configuration parameter VERBOSE is working again. fixes problems: * VERBOSE parameter can be changed at runtime * Initial log level was unset, then there was nothing logged lower than exception level. (for example configuration dump was not logged) * Initial VERBOSE was set to True, then it was too much verbose. And this flag was mean to be used for debugging problems. NOTE: real log level is driven by collectd configuration, not by plugin config. Change-Id: Ia7048ccb74f27a5d5885b9c0bda17d6fba603e9b Closes-Bug: #1664973
63 lines
2.2 KiB
Python
63 lines
2.2 KiB
Python
# -*- coding: utf-8 -*-
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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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"""Ceilometer collectd plugin implementation"""
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import logging
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import traceback
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class CollectdLogHandler(logging.Handler):
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"""A handler class for collectd plugin"""
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# this is the maximum message length supported by collectd
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# messages longer than this size have to be split
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max_message_length = 1023
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def __init__(self, collectd, config, level=logging.NOTSET):
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super(CollectdLogHandler, self).__init__(level=level)
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self.cfg = config
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self.priority_map = {
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logging.DEBUG: collectd.debug,
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logging.INFO: collectd.info,
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logging.WARNING: collectd.warning,
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logging.ERROR: collectd.error,
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logging.CRITICAL: collectd.error
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}
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def emit(self, record):
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"Called by loggers when a message has to be sent to collectd."
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try:
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self.emit_message(
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message=self.format(record),
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level=record.levelno)
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# pylint: disable=broad-except
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except Exception:
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self.emit_message(
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message="Error emitting message:\n{}".format(
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traceback.format_exc()),
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level=logging.ERROR)
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def emit_message(self, message, level):
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if self.cfg.VERBOSE and level == logging.DEBUG:
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level = logging.INFO
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elif level not in self.priority_map:
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level = logging.ERROR
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hook = self.priority_map[level]
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# collectd limits log size to 1023B
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# This splits entries to smaller chunks
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for i in range(0, len(message), self.max_message_length):
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hook(message[i:i + self.max_message_length])
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