picasso/picasso/common/logger.py

99 lines
3.2 KiB
Python

# All Rights Reserved.
#
# 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 datetime
import logging
import sys
from . import utils
def common_logger_setup(
level=logging.DEBUG,
filename='/var/log/picasso-api.log',
log_formatter='[%(asctime)s] - '
'%(name)s - '
'%(levelname)s - '
'%(module)s.py:%(lineno)d - '
'%(funcName)s - '
'%(message)s',
datetime_formatter='%Y-%m-%d %H:%M:%S',
log_to_console=False):
if log_to_console:
log_handler = logging.StreamHandler(sys.stdout)
else:
log_handler = logging.FileHandler(filename)
log_format = logging.Formatter(log_formatter, datetime_formatter)
log_handler.setFormatter(log_format)
return log_handler, level
def setup_logging(name,
filename='/var/log/picasso-api-{}.log'.format(
datetime.datetime.now()),
level=logging.DEBUG,
log_to_console=False,
formatter=None):
log_file_handler, log_level = common_logger_setup(
filename=filename,
level=level,
log_to_console=log_to_console,
log_formatter=formatter)
logger = logging.getLogger(name)
logger.addHandler(log_file_handler)
logger.setLevel(log_level)
return logger
class Singleton(type):
_instance = None
def __call__(cls, *args, **kwargs):
if not cls._instance:
cls._instance = super(Singleton, cls).__call__(*args, **kwargs)
return cls._instance
class UnifiedLogger(object, metaclass=utils.Singleton):
def __init__(self,
filename='/var/log/picasso-api-{}.log'.format(
datetime.datetime.now()),
level=logging.DEBUG, log_to_console=False):
self.filename = filename
self.level = level
if 'DEBUG' not in level:
self.log_formatter = (
'[%(asctime)s] - '
'%(name)s - '
'%(module)s.py:%(lineno)d - '
'%(message)s'
)
else:
self. log_formatter = (
'[%(asctime)s] - '
'%(name)s - '
'%(levelname)s - '
'%(module)s.py:%(lineno)d - '
'%(funcName)s - '
'%(message)s')
self.log_to_console = log_to_console
self.logger = self
def setup_logger(self, name):
return setup_logging(name, filename=self.filename,
level=self.level,
log_to_console=self.log_to_console,
formatter=self.log_formatter)