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log.py
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130 lines (106 loc) · 4.3 KB
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# Copyright © 2020 Interplanetary Database Association e.V.,
# BigchainDB and IPDB software contributors.
# SPDX-License-Identifier: (Apache-2.0 AND CC-BY-4.0)
# Code is Apache-2.0 and docs are CC-BY-4.0
import bigchaindb
import logging
from bigchaindb.common.exceptions import ConfigurationError
from logging.config import dictConfig as set_logging_config
import os
DEFAULT_LOG_DIR = os.getcwd()
DEFAULT_LOGGING_CONFIG = {
'version': 1,
'disable_existing_loggers': False,
'formatters': {
'console': {
'class': 'logging.Formatter',
'format': ('[%(asctime)s] [%(levelname)s] (%(name)s) '
'%(message)s (%(processName)-10s - pid: %(process)d)'),
'datefmt': '%Y-%m-%d %H:%M:%S',
},
'file': {
'class': 'logging.Formatter',
'format': ('[%(asctime)s] [%(levelname)s] (%(name)s) '
'%(message)s (%(processName)-10s - pid: %(process)d)'),
'datefmt': '%Y-%m-%d %H:%M:%S',
}
},
'handlers': {
'console': {
'class': 'logging.StreamHandler',
'formatter': 'console',
'level': logging.INFO,
},
'file': {
'class': 'logging.handlers.RotatingFileHandler',
'filename': os.path.join(DEFAULT_LOG_DIR, 'bigchaindb.log'),
'mode': 'w',
'maxBytes': 209715200,
'backupCount': 5,
'formatter': 'file',
'level': logging.INFO,
},
'errors': {
'class': 'logging.handlers.RotatingFileHandler',
'filename': os.path.join(DEFAULT_LOG_DIR, 'bigchaindb-errors.log'),
'mode': 'w',
'maxBytes': 209715200,
'backupCount': 5,
'formatter': 'file',
'level': logging.ERROR,
}
},
'loggers': {},
'root': {
'level': logging.DEBUG,
'handlers': ['console', 'file', 'errors'],
},
}
def _normalize_log_level(level):
try:
return level.upper()
except AttributeError as exc:
raise ConfigurationError('Log level must be a string!') from exc
def setup_logging():
"""Function to configure log hadlers.
.. important::
Configuration, if needed, should be applied before invoking this
decorator, as starting the subscriber process for logging will
configure the root logger for the child process based on the
state of :obj:`bigchaindb.config` at the moment this decorator
is invoked.
"""
logging_configs = DEFAULT_LOGGING_CONFIG
new_logging_configs = bigchaindb.config['log']
if 'file' in new_logging_configs:
filename = new_logging_configs['file']
logging_configs['handlers']['file']['filename'] = filename
if 'error_file' in new_logging_configs:
error_filename = new_logging_configs['error_file']
logging_configs['handlers']['errors']['filename'] = error_filename
if 'level_console' in new_logging_configs:
level = _normalize_log_level(new_logging_configs['level_console'])
logging_configs['handlers']['console']['level'] = level
if 'level_logfile' in new_logging_configs:
level = _normalize_log_level(new_logging_configs['level_logfile'])
logging_configs['handlers']['file']['level'] = level
if 'fmt_console' in new_logging_configs:
fmt = new_logging_configs['fmt_console']
logging_configs['formatters']['console']['format'] = fmt
if 'fmt_logfile' in new_logging_configs:
fmt = new_logging_configs['fmt_logfile']
logging_configs['formatters']['file']['format'] = fmt
if 'datefmt_console' in new_logging_configs:
fmt = new_logging_configs['datefmt_console']
logging_configs['formatters']['console']['datefmt'] = fmt
if 'datefmt_logfile' in new_logging_configs:
fmt = new_logging_configs['datefmt_logfile']
logging_configs['formatters']['file']['datefmt'] = fmt
log_levels = new_logging_configs.get('granular_levels', {})
for logger_name, level in log_levels.items():
level = _normalize_log_level(level)
try:
logging_configs['loggers'][logger_name]['level'] = level
except KeyError:
logging_configs['loggers'][logger_name] = {'level': level}
set_logging_config(logging_configs)