/**
* Constructor.
*
* @param locale the locale of the culture, not null
* @param zeroChar the character to use for the digit of zero
* @param positiveSignChar the character to use for the positive sign
* @param negativeSignChar the character to use for the negative sign
* @param decimalPointChar the character to use for the decimal point
* @param firstDayOfWeek the first day of the week
* @param minDaysInFirstWeek the minimum number of days in the first week, 1 to 7
*/
public DateTimeFormatSymbols(
Locale locale,
char zeroChar,
char positiveSignChar,
char negativeSignChar,
char decimalPointChar,
DayOfWeek firstDayOfWeek,
int minDaysInFirstWeek) {
DateTimeFormatter.checkNotNull(locale, "Locale must not be null");
DateTimeFormatter.checkNotNull(firstDayOfWeek, "DayOfWeek must not be null");
this.locale = locale;
this.zeroDigit = zeroChar;
this.positiveSign = positiveSignChar;
this.negativeSign = negativeSignChar;
this.decimalSeparator = decimalPointChar;
this.firstDayOfWeek = firstDayOfWeek;
this.minDaysInFirstWeek = minDaysInFirstWeek;
}
/**
* Obtains an info for the specified locale.
*
* <p>This method provides access to locale sensitive information.
*
* @param locale the locale, not null
* @return the info, not null
*/
public static DateTimeFormatSymbols of(Locale locale) {
DateTimeFormatter.checkNotNull(locale, "Locale must not be null");
DateTimeFormatSymbols info = CACHE.get(locale);
if (info == null) {
info = createInfo(locale);
CACHE.putIfAbsent(locale, info);
info = CACHE.get(locale);
}
return info;
}
private static DateTimeFormatSymbols createInfo(Locale locale) {
DecimalFormatSymbols oldSymbols = DecimalFormatSymbols.getInstance(locale);
DateTimeFormatter.checkNotNull(oldSymbols, "Symbols to convert must not be null");
char zeroDigit = oldSymbols.getZeroDigit();
char positiveSign = '+';
char negativeSign = oldSymbols.getMinusSign();
char decimalSeparator = oldSymbols.getDecimalSeparator();
Calendar cal = Calendar.getInstance(locale);
int calFDoW = cal.getFirstDayOfWeek();
DayOfWeek firstDayOfWeek = (calFDoW == 1 ? DayOfWeek.SUNDAY : DayOfWeek.of(calFDoW - 1));
int minDaysInFirstWeek = cal.getMinimalDaysInFirstWeek();
return new DateTimeFormatSymbols(
locale,
zeroDigit,
positiveSign,
negativeSign,
decimalSeparator,
firstDayOfWeek,
minDaysInFirstWeek);
}
