microservices-demo/src/recommendationservice/logger.py

42 lines
1.5 KiB
Python

#!/usr/bin/python
#
# Copyright 2018 Google LLC
#
# 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
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# 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.
import logging
import sys
from pythonjsonlogger import jsonlogger
# TODO(yoshifumi) this class is duplicated since other Python services are
# not sharing the modules for logging.
class CustomJsonFormatter(jsonlogger.JsonFormatter):
def add_fields(self, log_record, record, message_dict):
super(CustomJsonFormatter, self).add_fields(log_record, record, message_dict)
if not log_record.get('timestamp'):
log_record['timestamp'] = record.created
if log_record.get('severity'):
log_record['severity'] = log_record['severity'].upper()
else:
log_record['severity'] = record.levelname
def getJSONLogger(name):
logger = logging.getLogger(name)
handler = logging.StreamHandler(sys.stdout)
formatter = CustomJsonFormatter('(timestamp) (severity) (name) (message)')
handler.setFormatter(formatter)
logger.addHandler(handler)
logger.setLevel(logging.INFO)
logger.propagate = False
return logger