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# Copyright 2024 ByteDance and/or its affiliates.
#
# 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
from typing import Optional
class WarningFilter(logging.Filter):
def filter(self, record):
# Filter out specific warnings by their message or other criteria
if "simtk.openmm" in record.getMessage():
return False
return True
def get_logger(
name: str = "", loglevel: str = "INFO", log_file_path: Optional[str] = None
) -> logging.Logger:
"""
Get a logger with the specified name and add handlers to the root logger.
Args:
name (str): The name of the logger. Defaults to an empty string.
loglevel (str): The logging level. Defaults to "INFO".
log_file_path (Optional[str]): The path to the log file. Defaults to None.
Returns:
logging.Logger: The configured logger.
"""
root_logger = logging.getLogger()
logger = logging.getLogger(name)
# we only add handlers to the root logger! Let the propogation handle the rest.
add_handlers(root_logger, loglevel, log_file_path)
return logger
def add_handlers(
logger: logging.Logger, loglevel: str, log_file_path: Optional[str] = None
) -> logging.Logger:
"""
Add handlers to the specified logger.
Args:
logger (logging.Logger): The logger to which handlers will be added.
loglevel (str): The logging level.
log_file_path (Optional[str]): The path to the log file. Defaults to None.
Returns:
logging.Logger: The logger with added handlers.
"""
fmt = "%(asctime)-15s [%(pathname)s:%(lineno)d] %(levelname)s %(name)s: %(message)s"
formatter = logging.Formatter(fmt)
loglevel = getattr(logging, loglevel.upper(), logging.INFO)
logger.setLevel(loglevel)
if not logger.handlers:
handler = logging.StreamHandler()
logger.addHandler(handler)
else:
handler = logger.handlers[0]
handler.setFormatter(formatter)
warning_filter = WarningFilter()
handler.addFilter(warning_filter)
# we output to at most two streams: one stdout and one file
if log_file_path is not None and len(logger.handlers) == 1:
handler = logging.FileHandler(log_file_path, mode="a")
handler.setLevel(logging.INFO)
handler.setFormatter(formatter)
logger.addHandler(handler)
handler.addFilter(warning_filter)
return logger
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