public static boolean isDescendantLocale()

in locales-utils/src/main/java/com/spotify/i18n/locales/utils/hierarchy/LocalesHierarchyUtils.java [134:156]

• 17 lines of code
• 5 McCabe index (conditional complexity)

  public static boolean isDescendantLocale(final ULocale underTest, final ULocale ancestorLocale) {
    Preconditions.checkNotNull(underTest);
    Preconditions.checkNotNull(ancestorLocale);

    // Both locales are the same
    if (isSameLocale(underTest, ancestorLocale)) {
      return false;
    }

    // We start from the underTest locale position and go up in the hierarchy
    Optional<ULocale> currentOpt = getParentLocale(underTest);
    while (true) {
      // We have gone up all the way in the hierarchy and didn't find a match.
      if (!currentOpt.isPresent()) {
        return false;
      }
      // If the current locale is the parent one that we seek, it is a bingo.
      if (isSameLocale(currentOpt.get(), ancestorLocale)) {
        return true;
      }
      currentOpt = getParentLocale(currentOpt.get());
    }
  }