code: public static FilterChain buildConsumerChain(ConsumerConfig<?> consumerConfig, FilterInvoker lastFilter) {
          return new FilterChain(selectActualFilters(consumerConfig, CONSUMER_AUTO_ACTIVES), lastFilter, consumerConfig);
      }
docs: 构造调用端的执行链
  
  @param consumerConfig consumer配置
  @param lastFilter     最后一个filter
  @return filter执行链