import org.sonar.squidbridge.annotations.RuleTemplate; //导入依赖的package包/类
@VisibleForTesting
protected void newRule(Class<?> ruleClass, NewRepository repository) {

  org.sonar.check.Rule ruleAnnotation = AnnotationUtils.getAnnotation(ruleClass, org.sonar.check.Rule.class);
  if (ruleAnnotation == null) {
    throw new IllegalArgumentException("No Rule annotation was found on " + ruleClass);
  }
  String ruleKey = ruleAnnotation.key();
  if (StringUtils.isEmpty(ruleKey)) {
    throw new IllegalArgumentException("No key is defined in Rule annotation of " + ruleClass);
  }
  NewRule rule = repository.rule(ruleKey);
  if (rule == null) {
    throw new IllegalStateException("No rule was created for " + ruleClass + " in " + repository.key());
  }
  ruleMetadata(ruleClass, rule);

  rule.setTemplate(AnnotationUtils.getAnnotation(ruleClass, RuleTemplate.class) != null);
  if (ruleAnnotation.cardinality() == Cardinality.MULTIPLE) {
    throw new IllegalArgumentException("Cardinality is not supported, use the RuleTemplate annotation instead for " + ruleClass);
  }
}