/**
* Gets the current and most recent periods to search, based on the period types from the rules to
* run.
*
* <p>For each period type, return the period containing the current date (if any), and the most
* recent previous period. Add whichever of these periods actually exist in the database.
*
* <p>TODO If the last successful daily run was more than one day ago, we might add some
* additional periods of type DailyPeriodType not to miss any alerts.
*
* @param rules the ValidationRules to be evaluated on this run
* @return periods to search for new alerts
*/
private Set<Period> getAlertPeriodsFromRules(Set<ValidationRule> rules) {
Set<Period> periods = new HashSet<>();
Set<PeriodType> rulePeriodTypes = getPeriodTypesFromRules(rules);
for (PeriodType periodType : rulePeriodTypes) {
CalendarPeriodType calendarPeriodType = (CalendarPeriodType) periodType;
Period currentPeriod = calendarPeriodType.createPeriod();
Period previousPeriod = calendarPeriodType.getPreviousPeriod(currentPeriod);
periods.addAll(
periodService.getIntersectingPeriodsByPeriodType(
periodType, previousPeriod.getStartDate(), currentPeriod.getEndDate()));
}
return periods;
}
public List<Period> getPeriods(Period lastPeriod, int historyLength) {
List<Period> periods = new ArrayList<Period>(historyLength);
lastPeriod = periodStore.reloadForceAddPeriod(lastPeriod);
CalendarPeriodType periodType = (CalendarPeriodType) lastPeriod.getPeriodType();
Period p = new Period();
for (int i = 0; i < historyLength; ++i) {
p = getPeriodFromDates(lastPeriod.getStartDate(), lastPeriod.getEndDate(), periodType);
periods.add(p != null ? p : lastPeriod);
lastPeriod = periodType.getPreviousPeriod(lastPeriod);
}
Collections.reverse(periods);
return periods;
}