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# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the BSD-style license found in the
# LICENSE file in the root directory of this source tree.
import logging
from typing import Any, Callable, Optional
class FlightRecorderLogger:
_instance: Optional[Any] = None
logger: logging.Logger
def __init__(self) -> None:
self.logger: logging.Logger = logging.getLogger("Flight Recorder")
def __new__(cls) -> Any:
if cls._instance is None:
cls._instance = super().__new__(cls)
cls._instance.logger = logging.getLogger("Flight Recorder")
cls._instance.logger.setLevel(logging.INFO)
formatter = logging.Formatter("%(message)s")
ch = logging.StreamHandler()
ch.setFormatter(formatter)
cls._instance.logger.addHandler(ch)
return cls._instance
def set_log_level(self, level: int) -> None:
self.logger.setLevel(level)
@property
def debug(self) -> Callable[..., None]:
return self.logger.debug
@property
def info(self) -> Callable[..., None]:
return self.logger.info
@property
def warning(self) -> Callable[..., None]:
return self.logger.warning
@property
def error(self) -> Callable[..., None]:
return self.logger.error
@property
def critical(self) -> Callable[..., None]:
return self.logger.critical
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