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# -*- coding: utf-8 -*-
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# Copyright 2010 - 2017 RhodeCode GmbH and the AppEnlight project authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# 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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import json
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import logging
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ignored_keys = ['args', 'asctime', 'created', 'exc_info', 'exc_text',
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'filename', 'funcName', 'levelname', 'levelno', 'lineno',
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'message', 'module', 'msecs', 'msg', 'name', 'pathname',
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'process', 'processName', 'relativeCreated', 'stack_info',
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'thread', 'threadName']
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class JSONFormatter(logging.Formatter):
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def format(self, record):
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"""
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Format the specified record as text.
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The record's attribute dictionary is used as the operand to a
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string formatting operation which yields the returned string.
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Before formatting the dictionary, a couple of preparatory steps
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are carried out. The message attribute of the record is computed
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using LogRecord.getMessage(). If the formatting string uses the
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time (as determined by a call to usesTime(), formatTime() is
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called to format the event time. If there is exception information,
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it is formatted using formatException() and appended to the message.
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"""
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record.message = record.getMessage()
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log_dict = vars(record)
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keys = [k for k in log_dict.keys() if k not in ignored_keys]
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payload = {'message': record.message}
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payload.update({k: log_dict[k] for k in keys})
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record.message = json.dumps(payload, default=lambda x: str(x))
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if self.usesTime():
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record.asctime = self.formatTime(record, self.datefmt)
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s = self.formatMessage(record)
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if record.exc_info:
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# Cache the traceback text to avoid converting it multiple times
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# (it's constant anyway)
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if not record.exc_text:
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record.exc_text = self.formatException(record.exc_info)
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if record.exc_text:
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if s[-1:] != "\n":
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s = s + "\n"
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s = s + record.exc_text
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if record.stack_info:
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if s[-1:] != "\n":
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s = s + "\n"
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s = s + self.formatStack(record.stack_info)
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return s
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