| public java.lang.StringBuffer | format(java.util.Date date, java.lang.StringBuffer sbuf, java.text.FieldPosition fieldPosition)Appends a date in the format "YYYY-mm-dd HH:mm:ss,SSS"
to sbuf. For example: "1999-11-27 15:49:37,459".
long now = date.getTime();
int millis = (int)(now % 1000);
if ((now - millis) != lastTime) {
// We reach this point at most once per second
// across all threads instead of each time format()
// is called. This saves considerable CPU time.
calendar.setTime(date);
int start = sbuf.length();
int year = calendar.get(Calendar.YEAR);
sbuf.append(year);
String month;
switch(calendar.get(Calendar.MONTH)) {
case Calendar.JANUARY: month = "-01-"; break;
case Calendar.FEBRUARY: month = "-02-"; break;
case Calendar.MARCH: month = "-03-"; break;
case Calendar.APRIL: month = "-04-"; break;
case Calendar.MAY: month = "-05-"; break;
case Calendar.JUNE: month = "-06-"; break;
case Calendar.JULY: month = "-07-"; break;
case Calendar.AUGUST: month = "-08-"; break;
case Calendar.SEPTEMBER: month = "-09-"; break;
case Calendar.OCTOBER: month = "-10-"; break;
case Calendar.NOVEMBER: month = "-11-"; break;
case Calendar.DECEMBER: month = "-12-"; break;
default: month = "-NA-"; break;
}
sbuf.append(month);
int day = calendar.get(Calendar.DAY_OF_MONTH);
if(day < 10)
sbuf.append('0");
sbuf.append(day);
sbuf.append(' ");
int hour = calendar.get(Calendar.HOUR_OF_DAY);
if(hour < 10) {
sbuf.append('0");
}
sbuf.append(hour);
sbuf.append(':");
int mins = calendar.get(Calendar.MINUTE);
if(mins < 10) {
sbuf.append('0");
}
sbuf.append(mins);
sbuf.append(':");
int secs = calendar.get(Calendar.SECOND);
if(secs < 10) {
sbuf.append('0");
}
sbuf.append(secs);
sbuf.append(',");
// store the time string for next time to avoid recomputation
sbuf.getChars(start, sbuf.length(), lastTimeString, 0);
lastTime = now - millis;
}
else {
sbuf.append(lastTimeString);
}
if (millis < 100)
sbuf.append('0");
if (millis < 10)
sbuf.append('0");
sbuf.append(millis);
return sbuf;
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