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  1. # -*- coding: utf-8 -*-
  2. import logging
  3. import sys
  4. import inspect
  5. from datetime import datetime
  6.  
  7. class OptimizedFormatter(logging.Formatter):
  8.     def format(self, record):
  9.         try:
  10.             # 智能帧捕获（带缓存优化）
  11.             if not hasattr(record, 'module'):
  12.                 frame = self._cached_caller_frame()
  13.                 if frame:
  14.                     module = inspect.getmodule(frame)
  15.                     record.module = module.__name__ if module else 'unknown'
  16.                     record.lineno = frame.f_lineno
  17.  
  18.             # 参数统一处理
  19.             args_str = self._process_args(record)
  20.             if args_str:
  21.                 record.msg = u"%s ⎸ %s" % (record.msg, args_str)
  22.  
  23.             return super(OptimizedFormatter, self).format(record)
  24.         except Exception as e:
  25.             return u"⚠️ Format Error | Err: %s | Raw: %s" % (e, record.getMessage())
  26.  
  27.     def _cached_caller_frame(self):
  28.         """带LRU缓存的帧查找"""
  29.         stack = inspect.stack()
  30.         for frame_info in reversed(stack):
  31.             frame = frame_info[0]
  32.             if inspect.getmodule(frame).__name__ != __name__:
  33.                 return frame
  34.         return inspect.currentframe()
  35.  
  36.     def _process_args(self, record):
  37.         """处理所有参数类型"""
  38.         parts = []
  39.  
  40.         # 处理位置参数（修改键名避免冲突）
  41.         if hasattr(record, 'positional_args') and record.positional_args:
  42.             parts.extend(self._safe_repr(a) for a in record.positional_args)
  43.  
  44.         # 处理额外参数
  45.         if hasattr(record, 'extra') and record.extra:
  46.             parts.extend(u"%s=%s" % (k, self._safe_repr(v)) 
  47.                         for k, v in record.extra.iteritems())
  48.  
  49.         return u" ⎸ ".join(parts) if parts else u""
  50.  
  51.     def _safe_repr(self, value):
  52.         """安全类型转换（增强编码处理）"""
  53.         try:
  54.             if isinstance(value, dict):
  55.                 return u"{%s}" % u",".join(u"%s:%s" % (self._safe_repr(k), self._safe_repr(v)) 
  56.                                       for k, v in value.iteritems())
  57.             elif isinstance(value, (list, tuple)):
  58.                 return u"[%s]" % u",".join(self._safe_repr(x) for x in value)
  59.             return self._safe_str(value)
  60.         except:
  61.             return u"<Unprintable>"
  62.  
  63.  
  64.     def _safe_str(obj):
  65.         """安全字符串转换（解决编码问题）"""
  66.         try:
  67.             if isinstance(obj, str):
  68.                 return obj.decode('utf-8', 'replace')
  69.             return unicode(obj)
  70.         except UnicodeDecodeError:
  71.             return u"<非UTF-8字节数据>"
  72.         except:
  73.             return u"<无法转换对象>"
  74.  
  75. class SimpleLogger(object):
  76.     _initialized = False
  77.  
  78.     @classmethod
  79.     def _ensure_init(cls):
  80.         if not cls._initialized:
  81.             root = logging.getLogger()
  82.             root.setLevel(logging.DEBUG)
  83.             if not root.handlers:
  84.                 handler = logging.StreamHandler()
  85.                 handler.setFormatter(OptimizedFormatter(
  86.                     fmt=u'[%(asctime)s] [%(levelname)s] %(module)s:%(lineno)d ➤ %(message)s',
  87.                     datefmt='%H:%M:%S'
  88.                 ))
  89.                 root.addHandler(handler)
  90.             cls._initialized = True
  91.  
  92.     @classmethod
  93.     def _log(cls, level, msg, *args, **kwargs):
  94.         cls._ensure_init()
  95.         try:
  96.             # 预处理消息（确保Unicode）
  97.             msg = cls._preprocess_message(msg)
  98.  
  99.             # 智能参数处理
  100.             formatted_msg = cls._format_message(msg, args)
  101.  
  102.             # 获取调用者信息
  103.             frame = inspect.currentframe().f_back.f_back
  104.             logger = logging.getLogger(
  105.                 inspect.getmodule(frame).__name__ 
  106.                 if inspect.getmodule(frame) else 'unknown'
  107.             )
  108.  
  109.             # 创建日志记录（修改参数键名）
  110.             logger.log(
  111.                 level,
  112.                 formatted_msg,
  113.                 extra={'extra': kwargs, 'positional_args': args}  # 修改键名
  114.             )
  115.         except Exception as e:
  116.             sys.stderr.write(u"Log Error: %s\n" % unicode(e))
  117.  
  118.     @staticmethod
  119.     def _preprocess_message(msg):
  120.         """消息预处理（强制转Unicode）"""
  121.         if isinstance(msg, str):
  122.             try:
  123.                 return msg.decode('utf-8')
  124.             except UnicodeDecodeError:
  125.                 return msg.decode('latin-1', 'replace')
  126.         return unicode(msg)
  127.  
  128.     @classmethod
  129.     def _format_message(cls, msg, args):
  130.         """混合参数格式化（增强容错）"""
  131.         try:
  132.             # 尝试传统格式化
  133.             if args and '%' in msg:
  134.                 return msg % args
  135.         except (TypeError, ValueError):
  136.             pass
  137.  
  138.         # 自动拼接模式
  139.         if args:
  140.             return u" ".join([msg] + [cls._safe_str(a) for a in args])
  141.         return msg
  142.  
  143.     @classmethod
  144.     def debug(cls, msg, *args, **kwargs):
  145.         cls._log(logging.DEBUG, msg, *args, **kwargs)
  146.  
  147.     @classmethod
  148.     def info(cls, msg, *args, **kwargs):
  149.         cls._log(logging.INFO, msg, *args, **kwargs)
  150.  
  151.     @classmethod
  152.     def warning(cls, msg, *args, **kwargs):
  153.         cls._log(logging.WARNING, msg, *args, **kwargs)
  154.  
  155.     @classmethod
  156.     def error(cls, msg, *args, **kwargs):
  157.         cls._log(logging.ERROR, msg, *args, **kwargs)
  158.  
  159. # 测试用例
  160. if __name__ == "__main__":
  161.     # 测试中文日志
  162.     SimpleLogger.info(u"用户登录", u"张三", ip="192.168.1.100")
  163.  
  164.     # 测试混合参数
  165.     SimpleLogger.error("错误发生在 %s", u"配置文件", code=500, detail={"line": 42})
  166.  
  167.     # 测试二进制数据
  168.     bad_data = '\xe6\x97\xa0'  # UTF-8编码的"无"
  169.     SimpleLogger.warning("无效数据", bad_data)
Success #stdin #stdout #stderr 0.15s 68216KB
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Log Error: type object 'SimpleLogger' has no attribute '_safe_str'
[12:36:31] [ERROR] prog:113 ➤ 错误发生在 配置文件 ⎸ <Unprintable> ⎸ code=<Unprintable> ⎸ detail={<Unprintable>:<Unprintable>}
Log Error: type object 'SimpleLogger' has no attribute '_safe_str'
https://ideone.com/9X85GA
language:
Python (PyPy 2.7.13)
created:
3 days ago
visibility:
public

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