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log.py
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136 lines (101 loc) · 3.87 KB
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import datetime
import os
from abc import ABCMeta, abstractmethod
BUFFERED_MESSAGE_MAX = 1000
LIMITED_FILE_SIZE = 2 * 1024 * 1024 # 2MB
class IPrinter(metaclass=ABCMeta):
@abstractmethod
def log_message(self, msg):
pass
@abstractmethod
def log_error(self, error):
pass
class Logger(IPrinter):
def __init__(self, title_info, log_to_file=False):
self.Title = title_info
self.ToFile = log_to_file
if self.ToFile:
self.Folder = './tmp_log/'
self.File_Name = self.Folder + '{} {}.log'.format(title_info, datetime.datetime.now().strftime('%Y-%m-%d %H%M'))
self.__file = self.__open_or_create()
self.__buffer = ''
self.__buffered_msg_count = 0
self.__buffered_msg_max = BUFFERED_MESSAGE_MAX
def log_message(self, msg):
time = datetime.datetime.now()
time_str = time.strftime('%H:%M:%S')
str_highlighted = "[\033[0;36;5m{} \033[0m{}\033[0m] \033[0;32;5m{}\033[0m".format(
self.Title, time_str, msg)
str_save = "INFO {}@{}: {}".format(self.Title, time_str, msg)
print(str_highlighted)
if self.ToFile:
self.__log_to_file(str_save)
def log_error(self, error):
time = datetime.datetime.now()
time_str = time.strftime('%H:%M:%S')
str_highlighted = "[\033[0;93;5m{} {}\033[0m] \033[0;31;5m{}\033[0m".format(
self.Title, time_str, error)
str_save = "ERROR {}@{}: {}".format(self.Title, time_str, error)
print(str_highlighted)
if self.ToFile:
self.__log_to_file(str_save)
def flush(self):
if self.ToFile:
# flush all
self.__buffered_msg_max = 1
self.__log_to_file('')
self.__buffered_msg_max = BUFFERED_MESSAGE_MAX
def close(self):
if self.ToFile:
self.flush()
if self.__file is not None:
self.__file.close()
def __del__(self):
if self.ToFile:
self.close()
def __open_or_create(self):
if not os.path.exists(self.Folder):
os.mkdir(self.Folder)
return open(self.File_Name, "a+")
def __log_to_file(self, msg):
# Use buffer
if self.__buffered_msg_count < self.__buffered_msg_max:
self.__buffered_msg_count += 1
self.__buffer += msg + '\n'
return
# truncate if overflow
if self.__file.tell() >= LIMITED_FILE_SIZE:
self.__file.truncate(0)
self.__file.write(self.__buffer)
self.__file.flush()
self.__buffer = ''
self.__buffered_msg_count = 0
# 2021-07-02 修正:
# 为了保障基于多进程的集成测试能够正常完成。
def __getstate__(self):
return self.Title, self.ToFile
def __setstate__(self, state):
self.__init__(*state)
# -------------------------------------
class MutePrinter(IPrinter):
def __init__(self, title_info, log_to_file=False):
self.Title = title_info
self.ToFile = log_to_file
self.Folder = './tmp_log/'
self.File_Name = self.Folder + '{} {}.log'.format(title_info, datetime.datetime.now().strftime('%Y-%m-%d %H%M'))
def log_message(self, msg):
time = datetime.datetime.now()
time_str = time.strftime('%H:%M:%S')
str = 'INFO {}@{} : {}'.format(self.Title, time_str, msg)
self.__log_to_file(str)
def log_error(self, error):
time = datetime.datetime.now()
time_str = time.strftime('%H:%M:%S')
str = 'ERROR {}@{} : {}'.format(self.Title, time_str, error)
self.__log_to_file(str)
def __log_to_file(self, msg):
if not os.path.exists(self.Folder):
os.mkdir(self.Folder)
if self.ToFile:
with open(self.File_Name, 'a+') as file:
file.write(msg + '\n')