/**
* Validates whether the fields stored in a partial instant are valid.
*
* <p>This implementation uses {@link DateTimeField#getMinimumValue(ReadablePartial, int[])} and
* {@link DateTimeField#getMaximumValue(ReadablePartial, int[])}.
*
* @param partial the partial instant to validate
* @param values the values to validate, not null
* @throws IllegalArgumentException if the instant is invalid
*/
public void validate(ReadablePartial partial, int[] values) {
// check values in standard range, catching really stupid cases like -1
// this means that the second check will not hit trouble
int size = partial.size();
for (int i = 0; i < size; i++) {
int value = values[i];
DateTimeField field = partial.getField(i);
if (value < field.getMinimumValue()) {
throw new IllegalFieldValueException(
field.getType(), new Integer(value), new Integer(field.getMinimumValue()), null);
}
if (value > field.getMaximumValue()) {
throw new IllegalFieldValueException(
field.getType(), new Integer(value), null, new Integer(field.getMaximumValue()));
}
}
// check values in specific range, catching really odd cases like 30th Feb
for (int i = 0; i < size; i++) {
int value = values[i];
DateTimeField field = partial.getField(i);
if (value < field.getMinimumValue(partial, values)) {
throw new IllegalFieldValueException(
field.getType(),
new Integer(value),
new Integer(field.getMinimumValue(partial, values)),
null);
}
if (value > field.getMaximumValue(partial, values)) {
throw new IllegalFieldValueException(
field.getType(),
new Integer(value),
null,
new Integer(field.getMaximumValue(partial, values)));
}
}
}
/**
* Given a year, month, and day, find the number of occurrences of that day in the month
*
* @param year the year
* @param month the month
* @param day the day
* @return the number of occurrences of the day in the month
*/
public int numOccurrences(int year, int month, int day) {
DateTimeFormatter parser = ISODateTimeFormat.date();
DateTime date = parser.parseDateTime(year + "-" + month + "-" + "01");
Calendar cal = Calendar.getInstance();
cal.setTime(date.toDate());
GregorianChronology calendar = GregorianChronology.getInstance();
DateTimeField field = calendar.dayOfMonth();
int days = 0;
int count = 0;
int num = field.getMaximumValue(new LocalDate(year, month, day, calendar));
while (days < num) {
if (cal.get(Calendar.DAY_OF_WEEK) == day) {
count++;
}
date = date.plusDays(1);
cal.setTime(date.toDate());
days++;
}
return count;
}
public int getMaximumValue(ReadablePartial instant, int[] values) {
return iField.getMaximumValue(instant, values);
}
public int getMaximumValue(ReadablePartial instant) {
return iField.getMaximumValue(instant);
}
public int getMaximumValue(long instant) {
long localInstant = iZone.convertUTCToLocal(instant);
return iField.getMaximumValue(localInstant);
}
public int getMaximumValue() {
return iField.getMaximumValue();
}
/** Tests the dayOfMonth DateTimeField */
@Test
public void testDayOfMonthField() {
DateTimeField dayOfMonthField = CHRON_NOLEAP.dayOfMonth();
assertEquals(1, dayOfMonthField.getMinimumValue());
assertEquals(31, dayOfMonthField.getMaximumValue());
}
