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  1. # your code goes here
  2. # -*- coding: utf-8 -*-
  3. import logging
  4. import sys
  5. import inspect
  6. from datetime import datetime
  7.  
  8. class OptimizedFormatter(logging.Formatter):
  9.     def format(self, record):
  10.         try:
  11.             # 智能帧捕获（带缓存优化）
  12.             if not hasattr(record, 'module'):
  13.                 frame = self._cached_caller_frame()
  14.                 if frame:
  15.                     module = inspect.getmodule(frame)
  16.                     record.module = module.__name__ if module else 'unknown'
  17.                     record.lineno = frame.f_lineno
  18.  
  19.             # 参数统一处理
  20.             args_str = self._process_args(record)
  21.             if args_str:
  22.                 record.msg = u"%s ⎸ %s" % (record.msg, args_str)
  23.  
  24.             return super(OptimizedFormatter, self).format(record)
  25.         except Exception as e:
  26.             return u"⚠️ Format Error | Err: %s | Raw: %s" % (e, record.getMessage())
  27.  
  28.     def _cached_caller_frame(self):
  29.         """带LRU缓存的帧查找"""
  30.         stack = inspect.stack()
  31.         for frame_info in reversed(stack):
  32.             frame = frame_info[0]
  33.             if inspect.getmodule(frame).__name__ != __name__:
  34.                 return frame
  35.         return inspect.currentframe()
  36.  
  37.     def _process_args(self, record):
  38.         """处理所有参数类型"""
  39.         parts = []
  40.  
  41.         # 处理位置参数（修改键名避免冲突）
  42.         if hasattr(record, 'positional_args') and record.positional_args:
  43.             parts.extend(self._safe_repr(a) for a in record.positional_args)
  44.  
  45.         # 处理额外参数
  46.         if hasattr(record, 'extra') and record.extra:
  47.             parts.extend(u"%s=%s" % (k, self._safe_repr(v)) 
  48.                         for k, v in record.extra.iteritems())
  49.  
  50.         return u" ⎸ ".join(parts) if parts else u""
  51.  
  52.     def _safe_repr(self, value):
  53.         """安全类型转换（增强编码处理）"""
  54.         try:
  55.             if isinstance(value, dict):
  56.                 return u"{%s}" % u",".join(u"%s:%s" % (self._safe_repr(k), self._safe_repr(v)) 
  57.                                       for k, v in value.iteritems())
  58.             elif isinstance(value, (list, tuple)):
  59.                 return u"[%s]" % u",".join(self._safe_repr(x) for x in value)
  60.             return self._safe_str(value)
  61.         except:
  62.             return u"<Unprintable>"
  63.  
  64.     @staticmethod
  65.     def _safe_str(obj):
  66.         """安全字符串转换（解决编码问题）"""
  67.         try:
  68.             if isinstance(obj, str):
  69.                 return obj.decode('utf-8', 'replace')
  70.             return unicode(obj)
  71.         except UnicodeDecodeError:
  72.             return u"<非UTF-8字节数据>"
  73.         except:
  74.             return u"<无法转换对象>"
  75.  
  76. class SimpleLogger(object):
  77.     _initialized = False
  78.  
  79.     @classmethod
  80.     def _ensure_init(cls):
  81.         if not cls._initialized:
  82.             root = logging.getLogger()
  83.             root.setLevel(logging.DEBUG)
  84.             if not root.handlers:
  85.                 handler = logging.StreamHandler()
  86.                 handler.setFormatter(OptimizedFormatter(
  87.                     fmt=u'[%(asctime)s] [%(levelname)s] %(module)s:%(lineno)d ➤ %(message)s',
  88.                     datefmt='%H:%M:%S'
  89.                 ))
  90.                 root.addHandler(handler)
  91.             cls._initialized = True
  92.  
  93.     @classmethod
  94.     def _log(cls, level, msg, *args, **kwargs):
  95.         cls._ensure_init()
  96.         try:
  97.             # 预处理消息（确保Unicode）
  98.             msg = cls._preprocess_message(msg)
  99.  
  100.             # 智能参数处理
  101.             formatted_msg = cls._format_message(msg, args)
  102.  
  103.             # 获取调用者信息
  104.             frame = inspect.currentframe().f_back.f_back
  105.             logger = logging.getLogger(
  106.                 inspect.getmodule(frame).__name__ 
  107.                 if inspect.getmodule(frame) else 'unknown'
  108.             )
  109.  
  110.             # 创建日志记录（修改参数键名）
  111.             logger.log(
  112.                 level,
  113.                 formatted_msg,
  114.                 extra={'extra': kwargs, 'positional_args': args}  # 修改键名
  115.             )
  116.         except Exception as e:
  117.             sys.stderr.write(u"Log Error: %s\n" % unicode(e))
  118.  
  119.     @staticmethod
  120.     def _preprocess_message(msg):
  121.         """消息预处理（强制转Unicode）"""
  122.         if isinstance(msg, str):
  123.             try:
  124.                 return msg.decode('utf-8')
  125.             except UnicodeDecodeError:
  126.                 return msg.decode('latin-1', 'replace')
  127.         return unicode(msg)
  128.  
  129.     @classmethod
  130.     def _format_message(cls, msg, args):
  131.         """混合参数格式化（增强容错）"""
  132.         try:
  133.             # 尝试传统格式化
  134.             if args and '%' in msg:
  135.                 return msg % args
  136.         except (TypeError, ValueError):
  137.             pass
  138.  
  139.         # 自动拼接模式
  140.         if args:
  141.             return u" ".join([msg] + [cls._safe_str(a) for a in args])
  142.         return msg
  143.  
  144.     @classmethod
  145.     def debug(cls, msg, *args, **kwargs):
  146.         cls._log(logging.DEBUG, msg, *args, **kwargs)
  147.  
  148.     @classmethod
  149.     def info(cls, msg, *args, **kwargs):
  150.         cls._log(logging.INFO, msg, *args, **kwargs)
  151.  
  152.     @classmethod
  153.     def warning(cls, msg, *args, **kwargs):
  154.         cls._log(logging.WARNING, msg, *args, **kwargs)
  155.  
  156.     @classmethod
  157.     def error(cls, msg, *args, **kwargs):
  158.         cls._log(logging.ERROR, msg, *args, **kwargs)
  159.  
  160. # 测试用例
  161. if __name__ == "__main__":
  162.     # 测试中文日志
  163.     SimpleLogger.info(u"用户登录", u"张三", ip="192.168.1.100")
  164.  
  165.     # 测试混合参数
  166.     SimpleLogger.error("错误发生在 %s", u"配置文件", code=500, detail={"line": 42})
  167.  
  168.     # 测试二进制数据
  169.     bad_data = '\xe6\x97\xa0'  # UTF-8编码的"无"
  170.     SimpleLogger.warning("无效数据", bad_data)
Success #stdin #stdout #stderr 0.1s 68608KB
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Log Error: type object 'SimpleLogger' has no attribute '_safe_str'
[12:35:35] [ERROR] prog:114 ➤ 错误发生在 配置文件 ⎸ 配置文件 ⎸ code=500 ⎸ detail={line:42}
Log Error: type object 'SimpleLogger' has no attribute '_safe_str'
https://ideone.com/XWlpms
language:
Python (PyPy 2.7.13)
created:
3 days ago
visibility:
public

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