/**
* If date is not match, will return previous closest match. If date is match, will return this
* date.
*
* @param date - reference DateTime instance - never null;
* @return DateTime instance, never null. Value obeys logic specified above.
* @throws NoSuchValueException
*/
DateTime previousClosestMatch(DateTime date) throws NoSuchValueException {
List<Integer> year = yearsValueGenerator.generateCandidates(date.getYear(), date.getYear());
TimeNode days = generateDays(cronDefinition, date);
int highestMonth = months.getValues().get(months.getValues().size() - 1);
int highestDay = days.getValues().get(days.getValues().size() - 1);
int highestHour = hours.getValues().get(hours.getValues().size() - 1);
int highestMinute = minutes.getValues().get(minutes.getValues().size() - 1);
int highestSecond = seconds.getValues().get(seconds.getValues().size() - 1);
NearestValue nearestValue;
DateTime newDate;
if (year.isEmpty()) {
int previousYear = yearsValueGenerator.generatePreviousValue(date.getYear());
if (highestDay > 28) {
int highestDayOfMonth =
new DateTime(previousYear, highestMonth, 1, 0, 0).dayOfMonth().getMaximumValue();
if (highestDay > highestDayOfMonth) {
nearestValue = days.getPreviousValue(highestDay, 1);
if (nearestValue.getShifts() > 0) {
newDate =
new DateTime(previousYear, highestMonth, 1, 23, 59, 59, date.getZone())
.minusMonths(nearestValue.getShifts())
.dayOfMonth()
.withMaximumValue();
return previousClosestMatch(newDate);
} else {
highestDay = nearestValue.getValue();
}
}
}
return initDateTime(
previousYear,
highestMonth,
highestDay,
highestHour,
highestMinute,
highestSecond,
date.getZone());
}
if (!months.getValues().contains(date.getMonthOfYear())) {
nearestValue = months.getPreviousValue(date.getMonthOfYear(), 0);
int previousMonths = nearestValue.getValue();
if (nearestValue.getShifts() > 0) {
newDate =
new DateTime(date.getYear(), 12, 31, 23, 59, 59, date.getZone())
.minusYears(nearestValue.getShifts());
return previousClosestMatch(newDate);
}
return initDateTime(
date.getYear(),
previousMonths,
highestDay,
highestHour,
highestMinute,
highestSecond,
date.getZone());
}
if (!days.getValues().contains(date.getDayOfMonth())) {
nearestValue = days.getPreviousValue(date.getDayOfMonth(), 0);
if (nearestValue.getShifts() > 0) {
newDate =
new DateTime(date.getYear(), date.getMonthOfYear(), 1, 23, 59, 59, date.getZone())
.minusMonths(nearestValue.getShifts())
.dayOfMonth()
.withMaximumValue();
return previousClosestMatch(newDate);
}
return initDateTime(
date.getYear(),
date.getMonthOfYear(),
nearestValue.getValue(),
highestHour,
highestMinute,
highestSecond,
date.getZone());
}
if (!hours.getValues().contains(date.getHourOfDay())) {
nearestValue = hours.getPreviousValue(date.getHourOfDay(), 0);
if (nearestValue.getShifts() > 0) {
newDate =
new DateTime(
date.getYear(),
date.getMonthOfYear(),
date.getDayOfMonth(),
23,
59,
59,
date.getZone())
.minusDays(nearestValue.getShifts());
return previousClosestMatch(newDate);
}
return initDateTime(
date.getYear(),
date.getMonthOfYear(),
date.getDayOfMonth(),
nearestValue.getValue(),
highestMinute,
highestSecond,
date.getZone());
}
if (!minutes.getValues().contains(date.getMinuteOfHour())) {
nearestValue = minutes.getPreviousValue(date.getMinuteOfHour(), 0);
if (nearestValue.getShifts() > 0) {
newDate =
new DateTime(
date.getYear(),
date.getMonthOfYear(),
date.getDayOfMonth(),
date.getHourOfDay(),
59,
59,
date.getZone())
.minusHours(nearestValue.getShifts());
return previousClosestMatch(newDate);
}
return initDateTime(
date.getYear(),
date.getMonthOfYear(),
date.getDayOfMonth(),
date.getHourOfDay(),
nearestValue.getValue(),
highestSecond,
date.getZone());
}
if (!seconds.getValues().contains(date.getSecondOfMinute())) {
nearestValue = seconds.getPreviousValue(date.getSecondOfMinute(), 0);
int previousSeconds = nearestValue.getValue();
if (nearestValue.getShifts() > 0) {
newDate =
new DateTime(
date.getYear(),
date.getMonthOfYear(),
date.getDayOfMonth(),
date.getHourOfDay(),
date.getMinuteOfHour(),
59,
date.getZone())
.minusMinutes(nearestValue.getShifts());
return previousClosestMatch(newDate);
}
return initDateTime(
date.getYear(),
date.getMonthOfYear(),
date.getDayOfMonth(),
date.getHourOfDay(),
date.getMinuteOfHour(),
previousSeconds,
date.getZone());
}
return date;
}
/**
* If date is not match, will return next closest match. If date is match, will return this date.
*
* @param date - reference DateTime instance - never null;
* @return DateTime instance, never null. Value obeys logic specified above.
* @throws NoSuchValueException
*/
DateTime nextClosestMatch(DateTime date) throws NoSuchValueException {
List<Integer> year = yearsValueGenerator.generateCandidates(date.getYear(), date.getYear());
TimeNode days = null;
int lowestMonth = months.getValues().get(0);
int lowestHour = hours.getValues().get(0);
int lowestMinute = minutes.getValues().get(0);
int lowestSecond = seconds.getValues().get(0);
NearestValue nearestValue;
DateTime newDate;
if (year.isEmpty()) {
int newYear = yearsValueGenerator.generateNextValue(date.getYear());
days = generateDays(cronDefinition, new DateTime(newYear, lowestMonth, 1, 0, 0));
return initDateTime(
yearsValueGenerator.generateNextValue(date.getYear()),
lowestMonth,
days.getValues().get(0),
lowestHour,
lowestMinute,
lowestSecond,
date.getZone());
}
if (!months.getValues().contains(date.getMonthOfYear())) {
nearestValue = months.getNextValue(date.getMonthOfYear(), 0);
int nextMonths = nearestValue.getValue();
if (nearestValue.getShifts() > 0) {
newDate =
new DateTime(date.getYear(), 1, 1, 0, 0, 0, date.getZone())
.plusYears(nearestValue.getShifts());
return nextClosestMatch(newDate);
}
if (nearestValue.getValue() < date.getMonthOfYear()) {
date = date.plusYears(1);
}
days = generateDays(cronDefinition, new DateTime(date.getYear(), nextMonths, 1, 0, 0));
return initDateTime(
date.getYear(),
nextMonths,
days.getValues().get(0),
lowestHour,
lowestMinute,
lowestSecond,
date.getZone());
}
days = generateDays(cronDefinition, date);
if (!days.getValues().contains(date.getDayOfMonth())) {
nearestValue = days.getNextValue(date.getDayOfMonth(), 0);
if (nearestValue.getShifts() > 0) {
newDate =
new DateTime(date.getYear(), date.getMonthOfYear(), 1, 0, 0, 0, date.getZone())
.plusMonths(nearestValue.getShifts());
return nextClosestMatch(newDate);
}
if (nearestValue.getValue() < date.getDayOfMonth()) {
date = date.plusMonths(1);
}
return initDateTime(
date.getYear(),
date.getMonthOfYear(),
nearestValue.getValue(),
lowestHour,
lowestMinute,
lowestSecond,
date.getZone());
}
if (!hours.getValues().contains(date.getHourOfDay())) {
nearestValue = hours.getNextValue(date.getHourOfDay(), 0);
int nextHours = nearestValue.getValue();
if (nearestValue.getShifts() > 0) {
newDate =
new DateTime(
date.getYear(),
date.getMonthOfYear(),
date.getDayOfMonth(),
0,
0,
0,
date.getZone())
.plusDays(nearestValue.getShifts());
return nextClosestMatch(newDate);
}
if (nearestValue.getValue() < date.getHourOfDay()) {
date = date.plusDays(1);
}
return initDateTime(
date.getYear(),
date.getMonthOfYear(),
date.getDayOfMonth(),
nextHours,
lowestMinute,
lowestSecond,
date.getZone());
}
if (!minutes.getValues().contains(date.getMinuteOfHour())) {
nearestValue = minutes.getNextValue(date.getMinuteOfHour(), 0);
int nextMinutes = nearestValue.getValue();
if (nearestValue.getShifts() > 0) {
newDate =
new DateTime(
date.getYear(),
date.getMonthOfYear(),
date.getDayOfMonth(),
date.getHourOfDay(),
0,
0,
date.getZone())
.plusHours(nearestValue.getShifts());
return nextClosestMatch(newDate);
}
if (nearestValue.getValue() < date.getMinuteOfHour()) {
date = date.plusHours(1);
}
return initDateTime(
date.getYear(),
date.getMonthOfYear(),
date.getDayOfMonth(),
date.getHourOfDay(),
nextMinutes,
lowestSecond,
date.getZone());
}
if (!seconds.getValues().contains(date.getSecondOfMinute())) {
nearestValue = seconds.getNextValue(date.getSecondOfMinute(), 0);
int nextSeconds = nearestValue.getValue();
if (nearestValue.getShifts() > 0) {
newDate =
new DateTime(
date.getYear(),
date.getMonthOfYear(),
date.getDayOfMonth(),
date.getHourOfDay(),
date.getMinuteOfHour(),
0,
date.getZone())
.plusMinutes(nearestValue.getShifts());
return nextClosestMatch(newDate);
}
if (nearestValue.getValue() < date.getSecondOfMinute()) {
date = date.plusMinutes(1);
}
return initDateTime(
date.getYear(),
date.getMonthOfYear(),
date.getDayOfMonth(),
date.getHourOfDay(),
date.getMinuteOfHour(),
nextSeconds,
date.getZone());
}
return date;
}