DayOfWeekDescriptionBuilder.java 文件源码

@Override
protected String getSingleItemDescription(String expression) {
    String exp = expression;
    if (expression.contains("#")) {
        exp = expression.substring(0, expression.indexOf("#"));
    } else if (expression.contains("L")) {
        exp = exp.replace("L", "");
    }
    if (StringUtils.isNumeric(exp)) {
        int dayOfWeekNum = Integer.parseInt(exp);
        boolean isZeroBasedDayOfWeek = (options == null || options.isZeroBasedDayOfWeek());
        boolean isInvalidDayOfWeekForSetting = (options != null && !options.isZeroBasedDayOfWeek() && dayOfWeekNum <= 1);
        if (isInvalidDayOfWeekForSetting || (isZeroBasedDayOfWeek && dayOfWeekNum == 0)) {
            return DateAndTimeUtils.getDayOfWeekName(7);
        } else if (options != null && !options.isZeroBasedDayOfWeek()) {
            dayOfWeekNum -= 1;
        }
        return DateAndTimeUtils.getDayOfWeekName(dayOfWeekNum);
    } else {
        DateTimeFormatter dateTimeFormatter = DateTimeFormat.forPattern("EEE").withLocale(Locale.ENGLISH);
        return dateTimeFormatter.parseDateTime(WordUtils.capitalizeFully(exp)).dayOfWeek().getAsText(I18nMessages.getCurrentLocale());
    }
}