重构DBN模型
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+47
-50
@@ -1,81 +1,78 @@
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"""
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日志工具类
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支持按天分割、自动清理过期日志
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使用 loguru 提供增强的日志功能,支持按天分割、自动清理过期日志
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"""
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import logging
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import sys
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from pathlib import Path
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from logging.handlers import TimedRotatingFileHandler
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from datetime import datetime, timedelta
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from loguru import logger
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class LoggerManager:
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"""日志管理器"""
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"""日志管理器 - 基于 loguru"""
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_loggers = {}
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_configured = False
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@classmethod
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def get_logger(cls, name: str = "algorithm", log_dir: str = "logs") -> logging.Logger:
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def get_logger(cls, name: str = "algorithm", log_dir: str = "logs"):
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"""
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获取日志记录器
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获取日志记录器(loguru 不需要传统意义上的 logger 实例)
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Args:
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name: 日志名称(用于文件命名)
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log_dir: 日志目录
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Returns:
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loguru.logger 实例
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"""
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if not cls._configured:
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cls._configure_logger(name, log_dir)
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return logger
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@classmethod
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def _configure_logger(cls, name: str, log_dir: str):
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"""
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配置 loguru 日志处理器
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Args:
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name: 日志名称
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log_dir: 日志目录
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Returns:
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logging.Logger 实例
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"""
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if name in cls._loggers:
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return cls._loggers[name]
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# 移除默认的 stderr handler
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logger.remove()
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# 创建日志目录
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log_path = Path(log_dir)
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log_path.mkdir(parents=True, exist_ok=True)
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# 创建 logger
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logger = logging.getLogger(name)
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logger.setLevel(logging.DEBUG)
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# 避免重复添加 handler
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if logger.handlers:
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cls._loggers[name] = logger
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return logger
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# 日志格式
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formatter = logging.Formatter(
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'%(asctime)s [%(threadName)s] %(levelname)-5s %(name)s - %(message)s',
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datefmt='%Y-%m-%d %H:%M:%S'
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# 控制台 Handler - 彩色输出
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logger.add(
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sink=sys.stderr,
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level="INFO",
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format="<green>{time:YYYY-MM-DD HH:mm:ss}</green> [<cyan>{thread.name}</cyan>] <level>{level: <5}</level> <blue>{name}</blue> - <level>{message}</level>",
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colorize=True
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)
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# 控制台 Handler
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console_handler = logging.StreamHandler()
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console_handler.setLevel(logging.INFO)
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console_handler.setFormatter(formatter)
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logger.addHandler(console_handler)
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# 文件 Handler - 按天分割
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# 文件 Handler - 按大小分割,Windows 兼容
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log_file = log_path / f"{name}.log"
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file_handler = TimedRotatingFileHandler(
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filename=str(log_file),
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when='midnight',
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interval=1,
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backupCount=7,
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encoding='utf-8'
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logger.add(
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sink=str(log_file),
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level="DEBUG",
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format="{time:YYYY-MM-DD HH:mm:ss} [{thread.name}] {level: <5} {name} - {message}",
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rotation="50 MB", # 按大小轮转,避免Windows文件锁定问题
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retention="7 days", # 保留7天
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compression="zip", # 压缩旧日志文件
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encoding="utf-8",
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enqueue=True, # 异步写入,避免文件锁定
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delay=True, # 延迟打开文件,减少锁定时间
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backtrace=True, # 完整堆栈跟踪
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diagnose=True # 详细错误诊断
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)
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file_handler.setLevel(logging.DEBUG)
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file_handler.setFormatter(formatter)
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# 设置日志文件命名格式
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file_handler.suffix = "%Y-%m-%d.log"
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logger.addHandler(file_handler)
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cls._loggers[name] = logger
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return logger
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cls._configured = True
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# 便捷函数
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def get_logger(name: str = "algorithm", log_dir: str = "logs") -> logging.Logger:
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def get_logger(name: str = "algorithm", log_dir: str = "logs"):
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"""
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获取日志记录器的便捷函数
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@@ -84,6 +81,6 @@ def get_logger(name: str = "algorithm", log_dir: str = "logs") -> logging.Logger
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log_dir: 日志目录
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Returns:
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logging.Logger 实例
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loguru.logger 实例
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"""
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return LoggerManager.get_logger(name, log_dir)
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