private static String subFormatDate(Calendar cal) {
// Format time
StringBuffer formatedDate = new StringBuffer();
formatedDate.append(zeroPaddingNumber(cal.get(Calendar.YEAR), 4));
formatedDate.append(zeroPaddingNumber(cal.get(Calendar.MONTH) + 1, 2));
formatedDate.append(zeroPaddingNumber(cal.get(Calendar.DATE), 2));
formatedDate.append(t);
formatedDate.append(zeroPaddingNumber(cal.get(Calendar.HOUR_OF_DAY), 2));
formatedDate.append(zeroPaddingNumber(cal.get(Calendar.MINUTE), 2));
formatedDate.append(zeroPaddingNumber(cal.get(Calendar.SECOND), 2));
formatedDate.append(zeroPaddingNumber(cal.get(Calendar.MILLISECOND), 3));
return formatedDate.toString();
}
/**
* this method converts into a string in ISO8601 format representing relative time from the
* current time
*
* @param millisec is the number of milliseconds from now
* @return a String, e.g. "+00000000T010000000" to represent one hour from now
*/
public static String toRelativeTimeString(long millisec) {
StringBuffer str = new StringBuffer();
if (millisec > 0) str.append(plus);
else {
str.append(minus);
millisec = (-millisec); // get only the absolute value
}
long tmp = millisec / 1000;
long msec = millisec - tmp * 1000;
millisec = tmp;
tmp = millisec / 60;
long sec = millisec - tmp * 60;
millisec = tmp;
tmp = millisec / 60;
long min = millisec - tmp * 60;
millisec = tmp;
tmp = millisec / 24;
long h = millisec - tmp * 24;
millisec = tmp;
tmp = millisec / 30;
long day = millisec - tmp * 30;
millisec = tmp;
tmp = millisec / 12;
long mon = millisec - tmp * 12;
millisec = tmp;
long year = millisec;
str.append(zeroPaddingNumber(year, 4));
str.append(zeroPaddingNumber(mon, 2));
str.append(zeroPaddingNumber(day, 2));
str.append(t);
str.append(zeroPaddingNumber(h, 2));
str.append(zeroPaddingNumber(min, 2));
str.append(zeroPaddingNumber(sec, 2));
str.append(zeroPaddingNumber(msec, 3));
return str.toString();
}