@Override
public StringBuffer format(Date d, StringBuffer toAppendTo, FieldPosition pos) {
/* delegate to SimpleDateFormat for easy stuff */
super.format(d, toAppendTo, pos);
/* worry aboutthe milliseconds ourselves */
long millis = d.getTime() % 1000l;
if (0L == millis) {
return toAppendTo;
}
if (millis < 0L) {
// original date was prior to epoch
millis += 1000L;
}
int posBegin = toAppendTo.length();
toAppendTo.append(millisFormat.format(millis / 1000d));
if (DateFormat.MILLISECOND_FIELD == pos.getField()) {
pos.setBeginIndex(posBegin);
pos.setEndIndex(toAppendTo.length());
}
return toAppendTo;
}
