Class TermRule

core/src/test/java/org/apache/calcite/test/LintTest.java:466–486

A rule for defining valid patterns for terms.

   * A rule for defining valid patterns for terms.
   */
  private static final class TermRule {
    private final Pattern termPattern;
    private final Set<String> validTerms;

    TermRule(String regex, String... validTerms) {
      this.termPattern = compile(regex, Pattern.CASE_INSENSITIVE);
      this.validTerms = ImmutableSet.copyOf(validTerms);
    }

    /**
     * Checks whether the input satisfies the rule.
     * Returns an error message if the check fails and empty string if the input is valid.
     */
    String check(String input) {
      final Matcher m = termPattern.matcher(input);
      if (m.find() && !validTerms.contains(m.group(0))) {
        return String.format(Locale.ROOT, TERMINOLOGY_ERROR_MSG, m.group(0), validTerms);
      }
      return "";
    }
  }

  private static void checkMessage(String subject, String body,
      Consumer<String> consumer) {