#抽象訂閱者
from?abc?import?ABCMeta,abstractmethod
class?Subscriber(metaclass=ABCMeta):
????#向具體訂閱者發(fā)送消息的方法
????@abstractmethod
????def?update(self):
????????pass

#具體訂閱者
#1、短信訂閱者
class?SMSSubscriber(Subscriber):
????def?__init__(self,publisher):
????????self.publisher?=?publisher
????????self.publisher.attach(self)

????def?update(self):
????????print(type(self).__name__,self.publisher.getNews())


#2、郵件訂閱者
class?EmailSubscriber(Subscriber):
????def?__init__(self,?publisher):
????????self.publisher?=?publisher
????????self.publisher.attach(self)

????def?update(self):
????????print(type(self).__name__,self.publisher.getNews())
????????info?=?self.publisher.getNews()
????????#?發(fā)送郵件
????????Sender_mail(info).sender_mail()

#3、日志訂閱（文件存儲(chǔ)）
class?LoggerSubscriber(Subscriber):

????def?__init__(self,?publisher):
????????log_dir?=?os.path.expanduser(r".\apps\Mapview\logs")
????????log_file?=?os.path.join(log_dir,?"file_{time}.log")
????????logger.add(log_file,?rotation="100KB",?retention=2)
????????self.publisher?=?publisher
????????self.publisher.attach(self)

????def?update(self):
????????print(type(self).__name__,self.publisher.getNews())
????????info=self.publisher.getNews()
????????logger.info(f"{info}")

#創(chuàng)建發(fā)布者
class?NewsPublisher:
????def?__init__(self):
????????self.__subscribers?=?[]
????????self.__latestNews?=?None
????
????#將訂閱者添加到隊(duì)列中
????def?attach(self,subscriber):
????????self.__subscribers.append(subscriber)
????
????#從訂閱的主題里面移除
????def?detach(self):
????????return?self.__subscribers.pop()

????#生成觀察者列表
????def?subscribers(self):
????????return?[type(x).__name__?for?x?in?self.__subscribers]

????#發(fā)送通知給相關(guān)的主題訂閱者
????def?notifySubscribers(self):
????????for?sub?in?self.__subscribers:
????????????#update（）方法由具體的觀察者或訂閱者實(shí)現(xiàn)的
????????????sub.update()??#推送更新
????
????#創(chuàng)建新消息
????def?addNews(self,news):
????????self.__latestNews?=?news
????
????#返回最新消息，并通知觀察者
????def?getNews(self):
????????return?"Got?News:",self.__latestNews

from?apps.tools.subscription_model?import?NewsPublisher,LoggerSubscriber,EmailSubscriber
import?functools


#如果加載失敗，調(diào)用訂閱者
def?publisher(info):
????news_publisher?=?NewsPublisher()
????#?for?Subscribers?in?[EmailSubscriber,?LoggerSubscriber]:
????for?Subscribers?in?[LoggerSubscriber]:
????????#?eval(LoggerSubscriber)(news_publisher)
????????Subscribers(news_publisher)
????????print("\nSubscribers",?news_publisher.subscribers())
????????news_publisher.addNews(f"{info}")
????????news_publisher.notifySubscribers()


#處理異常的裝飾器
def?fail_data(msg='地圖加載失敗'):
????def?catch_exception(origin_func):
????????@functools.wraps(origin_func)
????????def?wrapper(*args,?**kwargs):
????????????try:
????????????????u?=?origin_func(*args,?**kwargs)
????????????????print("這個(gè)函數(shù)正常執(zhí)行：%s"?%?origin_func.__name__)
????????????????return?u

????????????except?Exception?as?e:
????????????????info?=?f"{msg}:{e.__doc__}"
????????????????"""
????????????????接口調(diào)用失敗處理機(jī)制，追加日志
????????????????"""
????????????????print(info)
????????????????publisher(info)
????????????????#?news_publisher?=?NewsPublisher()
????????????????#?LoggerSubscriber(news_publisher)
????????????????#?print("\nSubscribers",?news_publisher.subscribers())
????????????????#?news_publisher.addNews(f"{info}")
????????????????#?news_publisher.notifySubscribers()
????????return?wrapper
????return?catch_exception

if?__name__?==?'__main__':

????from?loguru?import?logger
????from?apps.tools.Sender_Email?import?Sender_mail

????news_publisher?=NewsPublisher()
????for?Subscribers?in?[LoggerSubscriber]:
????????print(Subscribers)
????????Subscribers(news_publisher)

????print("\nSubscribers",news_publisher.subscribers())

????news_publisher.addNews("地圖加載失??！")
????news_publisher.notifySubscribers()