Exemplo n.º 1
0
  /**
   * Return a new dateTime with the same normalized value, but in a different timezone.
   *
   * @param timezone the new timezone offset, in minutes
   * @return the date/time in the new timezone. This will be a new DateTimeValue unless no change
   *     was required to the original value
   */
  public CalendarValue adjustTimezone(int timezone) {
    if (!hasTimezone()) {
      CalendarValue in = (CalendarValue) copyAsSubType(typeLabel);
      in.setTimezoneInMinutes(timezone);
      return in;
    }
    int oldtz = getTimezoneInMinutes();
    if (oldtz == timezone) {
      return this;
    }
    int tz = timezone - oldtz;
    int h = hour;
    int mi = minute;
    mi += tz;
    if (mi < 0 || mi > 59) {
      h += Math.floor(mi / 60.0);
      mi = (mi + 60 * 24) % 60;
    }

    if (h >= 0 && h < 24) {
      return new DateTimeValue(
          year, month, day, (byte) h, (byte) mi, second, microsecond, timezone);
    }

    // Following code is designed to handle the corner case of adjusting from -14:00 to +14:00 or
    // vice versa, which can cause a change of two days in the date
    DateTimeValue dt = this;
    while (h < 0) {
      h += 24;
      DateValue t = DateValue.yesterday(dt.getYear(), dt.getMonth(), dt.getDay());
      dt =
          new DateTimeValue(
              t.getYear(),
              t.getMonth(),
              t.getDay(),
              (byte) h,
              (byte) mi,
              second,
              microsecond,
              timezone);
    }
    if (h > 23) {
      h -= 24;
      DateValue t = DateValue.tomorrow(year, month, day);
      return new DateTimeValue(
          t.getYear(),
          t.getMonth(),
          t.getDay(),
          (byte) h,
          (byte) mi,
          second,
          microsecond,
          timezone);
    }
    return dt;
  }
Exemplo n.º 2
0
 static int hashCode(
     int year,
     byte month,
     byte day,
     byte hour,
     byte minute,
     byte second,
     int microsecond,
     int tzMinutes) {
   int tz = -tzMinutes;
   int h = hour;
   int mi = minute;
   mi += tz;
   if (mi < 0 || mi > 59) {
     h += Math.floor(mi / 60.0);
     mi = (mi + 60 * 24) % 60;
   }
   while (h < 0) {
     h += 24;
     DateValue t = DateValue.yesterday(year, month, day);
     year = t.getYear();
     month = t.getMonth();
     day = t.getDay();
   }
   while (h > 23) {
     h -= 24;
     DateValue t = DateValue.tomorrow(year, month, day);
     year = t.getYear();
     month = t.getMonth();
     day = t.getDay();
   }
   return (year << 4)
       ^ (month << 28)
       ^ (day << 23)
       ^ (h << 18)
       ^ (mi << 13)
       ^ second
       ^ microsecond;
 }
Exemplo n.º 3
0
  /**
   * Factory method: create a dateTime value from a supplied string, in ISO 8601 format
   *
   * @param s a string in the lexical space of xs:dateTime
   * @return either a DateTimeValue representing the xs:dateTime supplied, or a ValidationFailure if
   *     the lexical value was invalid
   */
  public static ConversionResult makeDateTimeValue(CharSequence s) {
    // input must have format [-]yyyy-mm-ddThh:mm:ss[.fff*][([+|-]hh:mm | Z)]
    DateTimeValue dt = new DateTimeValue();
    StringTokenizer tok =
        new StringTokenizer(Whitespace.trimWhitespace(s).toString(), "-:.+TZ", true);

    if (!tok.hasMoreElements()) {
      return badDate("too short", s);
    }
    String part = (String) tok.nextElement();
    int era = +1;
    if ("+".equals(part)) {
      return badDate("Date must not start with '+' sign", s);
    } else if ("-".equals(part)) {
      era = -1;
      if (!tok.hasMoreElements()) {
        return badDate("No year after '-'", s);
      }
      part = (String) tok.nextElement();
    }
    int value = DurationValue.simpleInteger(part);
    if (value < 0) {
      return badDate("Non-numeric year component", s);
    }
    dt.year = value * era;
    if (part.length() < 4) {
      return badDate("Year is less than four digits", s);
    }
    if (part.length() > 4 && part.charAt(0) == '0') {
      return badDate("When year exceeds 4 digits, leading zeroes are not allowed", s);
    }
    if (dt.year == 0) {
      return badDate("Year zero is not allowed", s);
    }
    if (era < 0) {
      dt.year++; // internal representation allows a year zero.
    }
    if (!tok.hasMoreElements()) {
      return badDate("Too short", s);
    }
    if (!"-".equals(tok.nextElement())) {
      return badDate("Wrong delimiter after year", s);
    }

    if (!tok.hasMoreElements()) {
      return badDate("Too short", s);
    }
    part = (String) tok.nextElement();
    if (part.length() != 2) {
      return badDate("Month must be two digits", s);
    }
    value = DurationValue.simpleInteger(part);
    if (value < 0) {
      return badDate("Non-numeric month component", s);
    }
    dt.month = (byte) value;
    if (dt.month < 1 || dt.month > 12) {
      return badDate("Month is out of range", s);
    }

    if (!tok.hasMoreElements()) {
      return badDate("Too short", s);
    }
    if (!"-".equals(tok.nextElement())) {
      return badDate("Wrong delimiter after month", s);
    }
    if (!tok.hasMoreElements()) {
      return badDate("Too short", s);
    }
    part = (String) tok.nextElement();
    if (part.length() != 2) {
      return badDate("Day must be two digits", s);
    }
    value = DurationValue.simpleInteger(part);
    if (value < 0) {
      return badDate("Non-numeric day component", s);
    }
    dt.day = (byte) value;
    if (dt.day < 1 || dt.day > 31) {
      return badDate("Day is out of range", s);
    }

    if (!tok.hasMoreElements()) {
      return badDate("Too short", s);
    }
    if (!"T".equals(tok.nextElement())) {
      return badDate("Wrong delimiter after day", s);
    }

    if (!tok.hasMoreElements()) {
      return badDate("Too short", s);
    }
    part = (String) tok.nextElement();
    if (part.length() != 2) {
      return badDate("Hour must be two digits", s);
    }
    value = DurationValue.simpleInteger(part);
    if (value < 0) {
      return badDate("Non-numeric hour component", s);
    }
    dt.hour = (byte) value;
    if (dt.hour > 24) {
      return badDate("Hour is out of range", s);
    }

    if (!tok.hasMoreElements()) {
      return badDate("Too short", s);
    }
    if (!":".equals(tok.nextElement())) {
      return badDate("Wrong delimiter after hour", s);
    }

    if (!tok.hasMoreElements()) {
      return badDate("Too short", s);
    }
    part = (String) tok.nextElement();
    if (part.length() != 2) {
      return badDate("Minute must be two digits", s);
    }
    value = DurationValue.simpleInteger(part);
    if (value < 0) {
      return badDate("Non-numeric minute component", s);
    }
    dt.minute = (byte) value;
    if (dt.minute > 59) {
      return badDate("Minute is out of range", s);
    }
    if (dt.hour == 24 && dt.minute != 0) {
      return badDate("If hour is 24, minute must be 00", s);
    }
    if (!tok.hasMoreElements()) {
      return badDate("Too short", s);
    }
    if (!":".equals(tok.nextElement())) {
      return badDate("Wrong delimiter after minute", s);
    }

    if (!tok.hasMoreElements()) {
      return badDate("Too short", s);
    }
    part = (String) tok.nextElement();
    if (part.length() != 2) {
      return badDate("Second must be two digits", s);
    }
    value = DurationValue.simpleInteger(part);
    if (value < 0) {
      return badDate("Non-numeric second component", s);
    }
    dt.second = (byte) value;

    if (dt.second > 59) {
      return badDate("Second is out of range", s);
    }
    if (dt.hour == 24 && dt.second != 0) {
      return badDate("If hour is 24, second must be 00", s);
    }

    int tz = 0;

    int state = 0;
    while (tok.hasMoreElements()) {
      if (state == 9) {
        return badDate("Characters after the end", s);
      }
      String delim = (String) tok.nextElement();
      if (".".equals(delim)) {
        if (state != 0) {
          return badDate("Decimal separator occurs twice", s);
        }
        if (!tok.hasMoreElements()) {
          return badDate("Decimal point must be followed by digits", s);
        }
        part = (String) tok.nextElement();
        value = DurationValue.simpleInteger(part);
        if (value < 0) {
          return badDate("Non-numeric fractional seconds component", s);
        }
        double fractionalSeconds = Double.parseDouble('.' + part);
        dt.microsecond = (int) (Math.round(fractionalSeconds * 1000000));
        if (dt.hour == 24 && dt.microsecond != 0) {
          return badDate("If hour is 24, fractional seconds must be 0", s);
        }
        state = 1;
      } else if ("Z".equals(delim)) {
        if (state > 1) {
          return badDate("Z cannot occur here", s);
        }
        tz = 0;
        state = 9; // we've finished
        dt.setTimezoneInMinutes(0);
      } else if ("+".equals(delim) || "-".equals(delim)) {
        if (state > 1) {
          return badDate(delim + " cannot occur here", s);
        }
        state = 2;
        if (!tok.hasMoreElements()) {
          return badDate("Missing timezone", s);
        }
        part = (String) tok.nextElement();
        if (part.length() != 2) {
          return badDate("Timezone hour must be two digits", s);
        }
        value = DurationValue.simpleInteger(part);
        if (value < 0) {
          return badDate("Non-numeric timezone hour component", s);
        }
        tz = value;
        if (tz > 14) {
          return badDate("Timezone is out of range (-14:00 to +14:00)", s);
        }
        tz *= 60;

        if ("-".equals(delim)) {
          tz = -tz;
        }

      } else if (":".equals(delim)) {
        if (state != 2) {
          return badDate("Misplaced ':'", s);
        }
        state = 9;
        part = (String) tok.nextElement();
        value = DurationValue.simpleInteger(part);
        if (value < 0) {
          return badDate("Non-numeric timezone minute component", s);
        }
        int tzminute = value;
        if (part.length() != 2) {
          return badDate("Timezone minute must be two digits", s);
        }
        if (tzminute > 59) {
          return badDate("Timezone minute is out of range", s);
        }
        if (tz < 0) {
          tzminute = -tzminute;
        }
        if (Math.abs(tz) == 14 * 60 && tzminute != 0) {
          return badDate("Timezone is out of range (-14:00 to +14:00)", s);
        }
        tz += tzminute;
        dt.setTimezoneInMinutes(tz);
      } else {
        return badDate("Timezone format is incorrect", s);
      }
    }

    if (state == 2 || state == 3) {
      return badDate("Timezone incomplete", s);
    }

    boolean midnight = false;
    if (dt.hour == 24) {
      dt.hour = 0;
      midnight = true;
    }

    // Check that this is a valid calendar date
    if (!DateValue.isValidDate(dt.year, dt.month, dt.day)) {
      return badDate("Non-existent date", s);
    }

    // Adjust midnight to 00:00:00 on the next day
    if (midnight) {
      DateValue t = DateValue.tomorrow(dt.year, dt.month, dt.day);
      dt.year = t.getYear();
      dt.month = t.getMonth();
      dt.day = t.getDay();
    }

    dt.typeLabel = BuiltInAtomicType.DATE_TIME;
    return dt;
  }