code: public SLF4JQueryCountLoggingHandlerInterceptor buildSlf4jHandlerInterceptor(SLF4JLogLevel logLevel) {
          if (logLevel != null) {
              this.slf4jLogLevel = logLevel;
          }
  
          SLF4JQueryCountLoggingHandlerInterceptor handlerInterceptor = new SLF4JQueryCountLoggingHandlerInterceptor();
          if (this.slf4jLogLevel != null) {
              handlerInterceptor.setLogLevel(this.slf4jLogLevel);
          }
          handlerInterceptor.setWriteAsJson(this.writeAsJson);
          return handlerInterceptor;
      }
docs: Build {@link net.ttddyy.dsproxy.support.SLF4JQueryCountLoggingHandlerInterceptor}.
  
  @param logLevel slf4j log level
  @return query-count-logger using slf4j