public AbstractQueueConsumerFactory<T> addSubscribers(final ExecutorSubscriber<T> subscriber) {
        subscribers.add(subscriber);
        return this;
    }
Add subscribers abstract queue consumer factory.

@param subscriber the subscriber
@return the abstract queue consumer factory
shenyu-register-center/shenyu-register-common/src/main/java/org/apache/shenyu/register/common/subsriber/AbstractQueueConsumerFactory.java