package top.infra.web.servlet.handler;
   
   import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
   import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
   
   import java.util.Comparator;
   import java.util.List;
   
   /**
   * Created by zhuowan on 2018/5/15 15:28.
   * Description:
   */
  public abstract class OrderedHandlerInterceptorWebMvcConfigureAdapter extends WebMvcConfigurerAdapter {
  
    private static Comparator<OrderedHandlerInterceptor<?>> comparator() {
      return Comparator.comparingInt(i -> i.getInterceptor().getOrder());
    }
  
    public abstract List<OrderedHandlerInterceptor<?>> addOrderedInterceptors();
  
    @Override
    public void addInterceptors(final InterceptorRegistry registry) {
      final List<OrderedHandlerInterceptor<?>> interceptors = this.addOrderedInterceptors();
      interceptors
          .stream()
          .sorted(comparator())
          .forEach(i -> registry.addInterceptor(i.getInterceptor()).addPathPatterns(i.getPatterns()));
    }
  }