79 lines
2.5 KiB
Python
79 lines
2.5 KiB
Python
import logging
|
|
import colorlog
|
|
import asyncio
|
|
from collections import deque
|
|
from asyncio import Queue
|
|
from typing import List
|
|
|
|
CACHED_SIZE = 200
|
|
log_color_config = {
|
|
'DEBUG': 'bold_blue', 'INFO': 'bold_cyan',
|
|
'WARNING': 'bold_yellow', 'ERROR': 'red',
|
|
'CRITICAL': 'bold_red', 'RESET': 'reset',
|
|
'asctime': 'green'
|
|
}
|
|
|
|
class LogBroker:
|
|
def __init__(self):
|
|
self.log_cache = deque(maxlen=CACHED_SIZE)
|
|
self.subscribers: List[Queue] = []
|
|
|
|
def register(self) -> Queue:
|
|
'''给每个订阅者返回一个带有日志缓存的队列'''
|
|
q = Queue(maxsize=CACHED_SIZE + 10)
|
|
for log in self.log_cache:
|
|
q.put_nowait(log)
|
|
self.subscribers.append(q)
|
|
return q
|
|
|
|
def unregister(self, q: Queue):
|
|
'''取消订阅'''
|
|
self.subscribers.remove(q)
|
|
|
|
def publish(self, log_entry: str):
|
|
'''发布消息'''
|
|
self.log_cache.append(log_entry)
|
|
for q in self.subscribers:
|
|
try:
|
|
q.put_nowait(log_entry)
|
|
except asyncio.QueueFull:
|
|
pass
|
|
|
|
class LogQueueHandler(logging.Handler):
|
|
def __init__(self, log_broker: LogBroker):
|
|
super().__init__()
|
|
self.log_broker = log_broker
|
|
|
|
def emit(self, record):
|
|
log_entry = self.format(record)
|
|
self.log_broker.publish(log_entry)
|
|
|
|
class LogManager:
|
|
|
|
@classmethod
|
|
def GetLogger(cls, log_name: str = 'default'):
|
|
logger = logging.getLogger(log_name)
|
|
if logger.hasHandlers():
|
|
return logger
|
|
console_handler = logging.StreamHandler()
|
|
console_handler.setLevel(logging.DEBUG)
|
|
console_formatter = colorlog.ColoredFormatter(
|
|
fmt='%(log_color)s [%(asctime)s| %(levelname)s] [%(filename)s:%(lineno)d]: %(message)s %(reset)s',
|
|
datefmt='%H:%M:%S',
|
|
log_colors=log_color_config
|
|
)
|
|
console_handler.setFormatter(console_formatter)
|
|
logger.setLevel(logging.DEBUG)
|
|
logger.addHandler(console_handler)
|
|
|
|
return logger
|
|
|
|
@classmethod
|
|
def set_queue_handler(cls, logger: logging.Logger, log_broker: LogBroker):
|
|
handler = LogQueueHandler(log_broker)
|
|
handler.setLevel(logging.DEBUG)
|
|
if logger.handlers:
|
|
handler.setFormatter(logger.handlers[0].formatter)
|
|
else:
|
|
handler.setFormatter(logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s'))
|
|
logger.addHandler(handler) |