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# --------------------------------------------------------------------------------------------
# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License. See License.txt in the project root for license information.
# --------------------------------------------------------------------------------------------
import os
import sys
import logging
from logging.handlers import RotatingFileHandler
from opencensus.ext.azure.log_exporter import AzureLogHandler
def get_base_logger(log_filename, logger_name, level=logging.ERROR, print_console=False, log_format=None, rotating_logs=True):
logger = logging.getLogger(logger_name)
logger.setLevel(level)
formatter = log_format or logging.Formatter(
"%(asctime)s - [%(thread)d.%(threadName)s] - %(name)s - %(levelname)s - %(message)s"
)
if print_console:
console_handler = logging.StreamHandler(stream=sys.stdout)
if not logger.handlers:
console_handler.setFormatter(formatter)
logger.addHandler(console_handler)
else:
if rotating_logs:
if not logger.handlers:
# 5 MB max file size, 350 files max
mb = 50
bytes_in_mb = 1_048_576
bytes = mb * bytes_in_mb
file_handler = RotatingFileHandler(log_filename, maxBytes=bytes, backupCount=300)
file_handler.setFormatter(formatter)
logger.addHandler(file_handler)
else:
file_handler = logging.FileHandler(log_filename)
file_handler.setFormatter(formatter)
logger.addHandler(file_handler)
return logger
def get_logger(
log_filename,
logger_name,
level=logging.ERROR,
print_console=False,
log_format=None,
rotating_logs=True,
):
stress_logger = logging.getLogger(logger_name)
stress_logger.setLevel(level)
eventhub_logger = logging.getLogger("azure.eventhub")
eventhub_logger.setLevel(level)
formatter = log_format or logging.Formatter(
"%(asctime)s - [%(thread)d.%(threadName)s] - %(name)-12s %(levelname)-8s %(funcName)s(%(lineno)d) %(message)s"
)
if rotating_logs:
# If any do not have handlers, create a new file handler and add.
if not eventhub_logger.handlers or not stress_logger.handlers:
# 5 MB max file size, 350 files max
mb = 50
bytes_in_mb = 1_048_576
bytes = mb * bytes_in_mb
file_handler = RotatingFileHandler(log_filename, maxBytes=bytes, backupCount=300)
file_handler.setFormatter(formatter)
if not eventhub_logger.handlers:
eventhub_logger.addHandler(file_handler)
if not stress_logger.handlers:
stress_logger.addHandler(file_handler)
else:
console_handler = logging.FileHandler(log_filename)
console_handler.setFormatter(formatter)
eventhub_logger.addHandler(console_handler)
stress_logger.addHandler(console_handler)
return stress_logger
def get_azure_logger(logger_name, level=logging.ERROR):
logger = logging.getLogger("azure_logger_" + logger_name)
logger.setLevel(level)
# oc will automatically search for the ENV VAR 'APPLICATIONINSIGHTS_CONNECTION_STRING'
logger.addHandler(AzureLogHandler())
return logger
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