/**
* Converts a day count into year, month and day components. Algorithm is derived from J R
* Stockton (http://www.merlyn.demon.co.uk/daycount.htm).
*
* @param days day count
* @return result array
*/
private static long[] ymd(final BigDecimal days) {
BigDecimal d = days;
BigDecimal t =
d.add(BD36525).multiply(BD4).divideToIntegralValue(BD146097).subtract(BigDecimal.ONE);
BigDecimal y = BD100.multiply(t);
d = d.subtract(BD36524.multiply(t).add(t.divideToIntegralValue(BD4)));
t = d.add(BD366).multiply(BD4).divideToIntegralValue(BD1461).subtract(BigDecimal.ONE);
y = y.add(t);
d = d.subtract(BD365.multiply(t).add(t.divideToIntegralValue(BD4)));
final BigDecimal m = BD5.multiply(d).add(BD2).divideToIntegralValue(BD153);
d = d.subtract(BD153.multiply(m).add(BD2).divideToIntegralValue(BD5));
long mm = m.longValue();
if (mm > 9) {
mm -= 12;
y = y.add(BigDecimal.ONE);
}
return new long[] {y.subtract(BigDecimal.valueOf(ADD_NEG)).longValue(), mm + 2, d.longValue()};
}
/**
* Initializes the dayTime component.
*
* @param vl value
* @param mt matcher
* @param p first matching position
* @param ii input info
* @throws QueryException query exception
*/
void dayTime(final byte[] vl, final Matcher mt, final int p, final InputInfo ii)
throws QueryException {
final long d = mt.group(p) != null ? toLong(mt.group(p + 1), true, ii) : 0;
final long h = mt.group(p + 3) != null ? toLong(mt.group(p + 4), true, ii) : 0;
final long m = mt.group(p + 5) != null ? toLong(mt.group(p + 6), true, ii) : 0;
final BigDecimal s =
mt.group(p + 7) != null ? toDecimal(mt.group(p + 8), true, ii) : BigDecimal.ZERO;
sec =
s.add(BigDecimal.valueOf(d).multiply(DAYSECONDS))
.add(BigDecimal.valueOf(h).multiply(BD3600))
.add(BigDecimal.valueOf(m).multiply(BD60));
if (!mt.group(1).isEmpty()) sec = sec.negate();
final double v = sec.doubleValue();
if (v <= Long.MIN_VALUE || v >= Long.MAX_VALUE) throw DURRANGE_X_X.get(ii, type, vl);
}
