48 lines
1.7 KiB
Python
48 lines
1.7 KiB
Python
# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership.
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# The ASF licenses this file to You under the Apache License, Version 2.0
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# (the "License"); you may not use this file except in compliance with
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# the License. You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# Taken from https://github.com/Kami/python-extra-log-formatters
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from __future__ import absolute_import
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import logging
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__all__ = [
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'ExtraLogFormatter'
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]
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class ExtraLogFormatter(logging.Formatter):
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"""
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Custom log formatter which attaches all the attributes from the "extra"
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dictionary which start with an underscore to the end of the log message.
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For example:
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extra={'_id': 'user-1', '_path': '/foo/bar'}
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"""
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def format(self, record):
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custom_attributes = dict([(k, v) for k, v in record.__dict__.items()
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if k.startswith('_')])
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custom_attributes = self._dict_to_str(custom_attributes)
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msg = logging.Formatter.format(self, record)
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msg = '%s (%s)' % (msg, custom_attributes)
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return msg
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def _dict_to_str(self, dictionary):
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result = ['%s=%s' % (k[1:], str(v)) for k, v in dictionary.items()]
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result = ','.join(result)
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return result
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