/**
* Grab random holiday from the equivalence class that falls between the two dates
*
* @param earliest the earliest date parameter as defined in the model
* @param latest the latest date parameter as defined in the model
* @return a holiday that falls between the dates
*/
public String getRandomHoliday(String earliest, String latest) {
String dateString = "";
DateTimeFormatter parser = ISODateTimeFormat.date();
DateTime earlyDate = parser.parseDateTime(earliest);
DateTime lateDate = parser.parseDateTime(latest);
List<Holiday> holidays = new LinkedList<>();
int min = Integer.parseInt(earlyDate.toString().substring(0, 4));
int max = Integer.parseInt(lateDate.toString().substring(0, 4));
int range = max - min + 1;
int randomYear = (int) (Math.random() * range) + min;
for (Holiday s : EquivalenceClassTransformer.HOLIDAYS) {
holidays.add(s);
}
Collections.shuffle(holidays);
for (Holiday holiday : holidays) {
dateString = convertToReadableDate(holiday.forYear(randomYear));
if (toDate(dateString).after(toDate(earliest)) && toDate(dateString).before(toDate(latest))) {
break;
}
}
return dateString;
}
/**
* Checks if the date is a holiday
*
* @param dateString the date
* @return true if it is a holiday, false otherwise
*/
public boolean isHoliday(String dateString) {
boolean isHoliday = false;
for (Holiday date : EquivalenceClassTransformer.HOLIDAYS) {
if (convertToReadableDate(date.forYear(Integer.parseInt(dateString.substring(0, 4))))
.equals(dateString)) {
isHoliday = true;
}
}
return isHoliday;
}