lib-not-dr/lib_not_dr/logger/formatter.py

260 lines
8.2 KiB
Python

# -------------------------------
# Difficult Rocket
# Copyright © 2020-2023 by shenjackyuanjie 3695888@qq.com
# All rights reserved
# -------------------------------
import time
from string import Template
from typing import List, Union, Optional, Dict, Tuple
from lib_not_dr.types.options import Options
from lib_not_dr.logger.structers import LogMessage, FormattingMessage
class BaseFormatter(Options):
name = 'BaseFormatter'
sub_formatter: List['BaseFormatter'] = []
default_template: str = '${log_time}|${logger_name}|${logger_tag}|${level}|${messages}'
@classmethod
def add_info(cls, match: str, to: str, description: str) -> str:
return f'- {to} -> ${{{match}}} : {description}'
@classmethod
def info(cls) -> str:
infos = {BaseFormatter.name: BaseFormatter._info()}
cache = ''
for formatter in cls.sub_formatter:
infos[formatter.name] = formatter._info()
infos[cls.name] = cls._info()
for name, info in infos.items():
cache += f"## {name}\n"
cache += info
cache += '\n'
return cache
@classmethod
def _info(cls) -> str:
info = cls.add_info('logger_name', 'logger name', 'The name of the logger')
info += '\n'
info += cls.add_info('logger_tag', 'logger tag', 'The tag of the logger')
return info
def format_message(self,
message: LogMessage,
template: Optional[Union[Template, str]] = None) -> str:
"""
Format message
:param message: 输入的消息
:param template: 日志输出模板
:return:
"""
basic_info = message.format_for_message()
message, info = self._format((message, basic_info))
if template is None:
template = Template(self.default_template)
elif isinstance(template, str):
template = Template(template)
try:
return template.substitute(**info)
except (KeyError, ValueError):
return template.safe_substitute(**info)
def _format(self, message: FormattingMessage) -> FormattingMessage:
"""
Format message
:param message:
:return:
"""
for formatter in self.sub_formatter:
message = formatter._format(message)
return message
class TimeFormatter(BaseFormatter):
name = 'TimeFormatter'
time_format: str = '%Y-%m-%d %H:%M:%S'
msec_time_format: str = '{}-{:03d}'
@classmethod
def _info(cls) -> str:
return cls.add_info('log_time', 'formatted time when logging', 'The time format string'
'. See https://docs.python.org/3/library/time.html#time.strftime for more information.')
def _format(self, message: FormattingMessage) -> FormattingMessage:
time_mark = time.localtime(message[0].log_time / 1000000000)
if self.msec_time_format:
time_mark = self.msec_time_format.format(time.strftime(self.time_format, time_mark),
message[0].create_msec_3)
message[1]['log_time'] = time_mark
return message
class LevelFormatter(BaseFormatter):
name = 'LevelFormatter'
default_level: int = 20
# If True, the undefined level will be set to the higher nearest level.
level_get_higher: bool = True
level_name_map = {
0: 'NOTSET',
2: 'TRACE',
5: 'FINE',
7: 'DEBUG',
10: 'INFO',
30: 'WARN',
50: 'ERROR',
90: 'FATAL'
}
name_level_map = {
'NOTSET': 0,
'TRACE': 2,
'FINE': 5,
'DEBUG': 7,
'INFO': 10,
'WARN': 30,
'ERROR': 50,
'FATAL': 90
}
@classmethod
def _info(cls) -> str:
return cls.add_info('level', 'log level', 'The log level')
def _format(self, message: FormattingMessage) -> FormattingMessage:
if message[0].level in self.name_level_map:
level_tag = self.level_name_map[message[0].level]
else:
if self.level_get_higher:
for level in self.name_level_map:
if message[0].level < self.name_level_map[level]:
level_tag = level
break
else:
level_tag = 'FATAL'
else:
for level in self.name_level_map:
if message[0].level > self.name_level_map[level]:
level_tag = level
break
else:
level_tag = 'NOTSET'
message[1]['level'] = level_tag
return message
class TraceFormatter(BaseFormatter):
name = 'TraceFormatter'
@classmethod
def _info(cls) -> str:
info = cls.add_info('logging file', 'log_source', 'the logging file name')
info += '\n'
info += cls.add_info('logging line', 'log_line', 'the logging line number')
info += '\n'
info += cls.add_info('logging function', 'log_function', 'the logging function name')
return info
def _format(self, message: FormattingMessage) -> FormattingMessage:
if message[0].stack_trace is None:
return message
message[1]['log_source'] = message[0].stack_trace.f_code.co_filename
message[1]['log_line'] = message[0].stack_trace.f_lineno
message[1]['log_function'] = message[0].stack_trace.f_code.co_name
return message
class LevelColorFormatter(BaseFormatter):
name = 'LevelColorFormatter'
enable_color: bool = True
@staticmethod
def _default_color() -> Dict[int, Tuple[str, str]]:
return {
# Notset: just black
0: ('', ''),
# Trace: blue
2: ('\033[0;34m', '\033[0m'),
# Fine: green
5: ('\033[0;32m', '\033[0m'),
# Debug: cyan
7: ('\033[0;36m', '\033[0m'),
# Info: white
10: ('\033[0;37m', '\033[0m'),
# Warn: yellow
30: ('\033[0;33m', '\033[0m'),
# Error: red
50: ('\033[0;31m', '\033[0m'),
# Fatal: red
90: ('\033[0;31m', '\033[0m')
}
@classmethod
def _info(cls) -> str:
info = cls.add_info('colored message', 'message', 'A colored message')
info += '\n'
info += cls.add_info('colored level', 'level', 'A colored level')
info += '\n'
info += cls.add_info('colored logger name', 'logger_name', 'A colored logger name')
return info
def _format(self, message: FormattingMessage) -> FormattingMessage:
if message[1].get('level') is None:
return message
# 向上寻找等级
for level in self._default_color():
if message[0].level < level:
break
else:
level = 90
# 获取颜色
color = self._default_color()[level]
# 添加颜色
message[1]['messages'] = f'{color[0]}{message[1]["messages"]}{color[1]}'
message[1]['level'] = f'{color[0]}{message[1]["level"]}{color[1]}'
message[1]['logger_name'] = f'{color[0]}{message[1]["logger_name"]}{color[1]}'
return message
class StdFormatter(BaseFormatter):
name = 'StdFormatter'
sub_formatter = [TimeFormatter(), LevelFormatter(), TraceFormatter(), LevelColorFormatter()]
@classmethod
def _info(cls) -> str:
return 'None'
if __name__ == '__main__':
import inspect
log_message = LogMessage(messages=['Hello World!'],
level=10,
stack_trace=inspect.currentframe(),
logger_tag='tester',
logger_name='test')
print(TimeFormatter.info())
print(TimeFormatter().format_message(log_message))
print(LevelFormatter.info())
print(LevelFormatter().format_message(log_message))
print(TraceFormatter.info())
print(TraceFormatter().format_message(log_message))
print(LevelColorFormatter.info())
print(LevelColorFormatter().format_message(log_message))
print(StdFormatter.info())
print(StdFormatter().format_message(log_message))