Exemplo n.º 1
0
 /**
  * Returns a day count for the specified years, months and days. All values must be specified in
  * their internal representation (undefined values are supported, too). Algorithm is derived from
  * J R Stockton (http://www.merlyn.demon.co.uk/daycount.htm).
  *
  * @param year year
  * @param month month
  * @param day days
  * @return days
  */
 private static BigDecimal days(final long year, final int month, final int day) {
   final long y = year - (month < 2 ? 1 : 0);
   final int m = month + (month < 2 ? 13 : 1);
   final int d = day + 1;
   return BD365
       .multiply(BigDecimal.valueOf(y))
       .add(BigDecimal.valueOf(y / 4 - y / 100 + y / 400 - 92 + d + (153 * m - 2) / 5));
 }
Exemplo n.º 2
0
  /**
   * 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);
  }
Exemplo n.º 3
0
 /**
  * Returns the date in seconds.
  *
  * @return seconds
  */
 final BigDecimal seconds() {
   int z = tz;
   if (z == Short.MAX_VALUE) {
     // [CG] XQuery, DateTime: may be removed
     final long n = System.currentTimeMillis();
     z = Calendar.getInstance().getTimeZone().getOffset(n) / 60000;
   }
   return (sec == null ? BigDecimal.ZERO : sec)
       .add(BigDecimal.valueOf(Math.max(0, hou) * 3600 + Math.max(0, min) * 60 - z * 60));
 }
Exemplo n.º 4
0
 /**
  * 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()};
 }
Exemplo n.º 5
0
  /**
   * Adjusts the timezone.
   *
   * @param zone timezone
   * @param spec indicates if zone has been specified (may be {@code null})
   * @param ii input info
   * @throws QueryException query exception
   */
  void tz(final DTDur zone, final boolean spec, final InputInfo ii) throws QueryException {
    final short t;
    if (spec && zone == null) {
      t = Short.MAX_VALUE;
    } else {
      if (zone == null) {
        final Calendar c = Calendar.getInstance();
        t = (short) ((c.get(Calendar.ZONE_OFFSET) + c.get(Calendar.DST_OFFSET)) / 60000);
      } else {
        t = (short) (zone.min() + zone.hou() * 60);
        if (zone.sec().signum() != 0) throw ZONESEC_X.get(ii, zone);
        if (Math.abs(t) > 60 * 14 || zone.day() != 0) throw INVALZONE_X.get(ii, zone);
      }

      // change time if two competing time zones exist
      if (tz != Short.MAX_VALUE) add(BigDecimal.valueOf(60L * (t - tz)));
    }
    tz = t;
  }
Exemplo n.º 6
0
  /**
   * Adds the specified dayTime duration.
   *
   * @param add value to be added
   */
  private void add(final BigDecimal add) {
    // normalized modulo: sc % 60  vs.  (-sc + sc % 60 + 60 + sc) % 60
    final BigDecimal sc = sec().add(add);
    sec =
        sc.signum() >= 0
            ? sc.remainder(BD60)
            : sc.negate().add(sc.remainder(BD60)).add(BD60).add(sc).remainder(BD60);

    final long mn = Math.max(min(), 0) + div(sc.longValue(), 60);
    min = (byte) mod(mn, 60);
    final long ho = Math.max(hou, 0) + div(mn, 60);
    hou = (byte) mod(ho, 24);
    final long da = div(ho, 24);

    final long[] ymd = ymd(days().add(BigDecimal.valueOf(da)));
    yea = ymd[0];
    mon = (byte) ymd[1];
    day = (byte) ymd[2];
  }