detection-demo / logging_config.py
kevinconka's picture
Refactor logging setup in app.py and blob_utils.py to use module-level loggers for better context and remove redundant file handler configuration in logging_config.py.
1709520
"""
Logging configuration for the detection demo application.
Provides centralized logging setup with proper formatting and levels.
"""
import logging
import sys
class LoggerManager:
"""Singleton logger manager for the application."""
_instance = None
_initialized = False
def __new__(cls):
if cls._instance is None:
cls._instance = super().__new__(cls)
return cls._instance
def __init__(self):
if not self._initialized:
self._setup_default_logging()
self._initialized = True
def _setup_default_logging(self):
"""Setup default logging configuration."""
# Create main logger
self.logger = logging.getLogger()
self.logger.setLevel(logging.INFO)
# Prevent duplicate handlers
if self.logger.handlers:
return
# Console handler
console_handler = logging.StreamHandler(sys.stdout)
console_handler.setLevel(logging.INFO)
console_formatter = logging.Formatter(
fmt="%(asctime)s - %(name)s - %(levelname)s - %(message)s",
datefmt="%H:%M:%S",
)
console_handler.setFormatter(console_formatter)
self.logger.addHandler(console_handler)
def get_logger(self, name: str = None) -> logging.Logger:
"""Get a logger instance."""
if name:
return logging.getLogger(name)
return self.logger
# Global logger manager instance
_logger_manager = LoggerManager()
def get_logger(name: str = None) -> logging.Logger:
"""
Get a logger instance for the application.
Args:
name: Optional module name (will be prefixed with app name)
Returns:
Logger instance
"""
return _logger_manager.get_logger(name)
# Module-level logger
logger = get_logger(__name__)