static long handleSubdayRepeat(DateTime startDate, RRule rrule) {
long millis;
switch (rrule.getFreq()) {
case HOURLY:
millis = DateUtilities.ONE_HOUR;
break;
case MINUTELY:
millis = DateUtilities.ONE_MINUTE;
break;
default:
throw new RuntimeException(
"Error handing subday repeat: " + rrule.getFreq()); // $NON-NLS-1$
}
long newDueDate = startDate.getMillis() + millis * rrule.getInterval();
return Task.createDueDate(Task.URGENCY_SPECIFIC_DAY_TIME, newDueDate);
}
/** Compute next due date */
public static long computeNextDueDate(Task task, String recurrence) throws ParseException {
boolean repeatAfterCompletion = task.getFlag(Task.FLAGS, Task.FLAG_REPEAT_AFTER_COMPLETION);
RRule rrule = initRRule(recurrence);
// initialize startDateAsDV
Date original = setUpStartDate(task, repeatAfterCompletion, rrule.getFreq());
DateValue startDateAsDV = setUpStartDateAsDV(task, original);
if (rrule.getFreq() == Frequency.HOURLY || rrule.getFreq() == Frequency.MINUTELY)
return handleSubdayRepeat(original, rrule);
else if (rrule.getFreq() == Frequency.WEEKLY
&& rrule.getByDay().size() > 0
&& repeatAfterCompletion)
return handleWeeklyRepeatAfterComplete(rrule, original, task.hasDueTime());
else return invokeRecurrence(rrule, original, startDateAsDV);
}
/** Initialize RRule instance */
private static RRule initRRule(String recurrence) throws ParseException {
RRule rrule = new RRule(recurrence);
// handle the iCalendar "byDay" field differently depending on if
// we are weekly or otherwise
if (rrule.getFreq() != Frequency.WEEKLY) rrule.setByDay(Collections.EMPTY_LIST);
return rrule;
}
/** Compute next due date */
public static long computeNextDueDate(Task task, String recurrence, boolean repeatAfterCompletion)
throws ParseException {
RRule rrule = initRRule(recurrence);
// initialize startDateAsDV
DateTime original = setUpStartDate(task, repeatAfterCompletion, rrule.getFreq());
DateValue startDateAsDV = setUpStartDateAsDV(task, original);
if (rrule.getFreq() == Frequency.HOURLY || rrule.getFreq() == Frequency.MINUTELY) {
return handleSubdayRepeat(original, rrule);
} else if (rrule.getFreq() == Frequency.WEEKLY
&& rrule.getByDay().size() > 0
&& repeatAfterCompletion) {
return handleWeeklyRepeatAfterComplete(rrule, original, task.hasDueTime());
} else if (rrule.getFreq() == Frequency.MONTHLY) {
return handleMonthlyRepeat(original, startDateAsDV, task.hasDueTime(), rrule);
} else {
return invokeRecurrence(rrule, original, startDateAsDV);
}
}