/// <summary>
 /// 订阅事件
 /// </summary>
 /// <param name="eventType"></param>
 /// <param name="factory"></param>
 /// <returns></returns>
 public override IDisposable Subscribe(Type eventType, IEventHandlerFactory factory)
 {
     // 自定义的事件订阅者,可以不需要事件注册的事件类型
     CustomDistributedEventSubscriber.Subscribe(eventType, factory);
     return(new DisposeAction(() => CustomDistributedEventSubscriber.UnSubscribe(eventType, factory)));
 }
 /// <summary>
 /// 退订事件
 /// </summary>
 /// <param name="eventType">事件类型</param>
 /// <param name="factory">事件处理器工厂</param>
 public override void Unsubscribe(Type eventType, IEventHandlerFactory factory)
 {
     GetOrCreateHandlerFactories(eventType).Locking(factories => factories.Remove(factory));
     CustomDistributedEventSubscriber.UnSubscribe(eventType, factory);
 }