qdate.java

来自「RESIN 3.2 最新源码」· Java 代码 · 共 1,666 行 · 第 1/3 页

    default:
      return Long.MAX_VALUE;
    }
  }

  /**
   * Sets values based on a field.
   */
  public long set(int field, long value)
  {
    switch (field) {
    case YEAR:
      setYear((int) value);
      break;

    case MONTH:
      setMonth((int) value);
      break;

    case DAY_OF_MONTH:
      setDayOfMonth((int) value);
      break;

    case HOUR:
      setHour((int) value);
      break;

    case MINUTE:
      setMinute((int) value);
      break;

    case SECOND:
      setSecond((int) value);
      break;

    case MILLISECOND:
      setMillisecond(value);
      break;

    default:
      throw new RuntimeException();
    }

    return _localTimeOfEpoch;
  }

  /*
   * Mon, 17 Jan 1994 11:14:55 -0500 (EST)
   */
  public String printDate()
  {
    if (_lastDate != null && _lastTime == _localTimeOfEpoch)
      return _lastDate;

    CharBuffer cb = new CharBuffer();

    printDate(cb);

    _lastDate = cb.toString();
    _lastTime = _localTimeOfEpoch;

    return _lastDate;
  }

  /*
   * Mon, 17 Jan 1994 11:14:55 -0500 (EST)
   */
  public void printDate(CharBuffer cb)
  {
    cb.append(DAY_NAMES[(int) (_dayOfEpoch % 7 + 11) % 7]);
    cb.append(", ");
    cb.append((_dayOfMonth + 1) / 10);
    cb.append((_dayOfMonth + 1) % 10);
    cb.append(" ");
    cb.append(MONTH_NAMES[(int) _month]);
    cb.append(" ");
    cb.append(_year);
    cb.append(" ");
    cb.append((_timeOfDay / 36000000L) % 10);
    cb.append((_timeOfDay / 3600000L) % 10);
    cb.append(":");
    cb.append((_timeOfDay / 600000L) % 6);
    cb.append((_timeOfDay / 60000L) % 10);
    cb.append(":");
    cb.append((_timeOfDay / 10000L) % 6);
    cb.append((_timeOfDay / 1000L) % 10);

    if (_zoneName == null || _zoneName.equals("GMT")) {
      cb.append(" GMT");
      return;
    }

    long offset = _zoneOffset;

    if (offset < 0) {
      cb.append(" -");
      offset = - offset;
    } else
      cb.append(" +");

    cb.append((offset / 36000000) % 10);
    cb.append((offset / 3600000) % 10);
    cb.append((offset / 600000) % 6);
    cb.append((offset / 60000) % 10);

    cb.append(" (");
    cb.append(_zoneName);
    cb.append(")");
  }

  /**
   * Prints the date to a stream.
   */
  public void printDate(WriteStream os)
    throws IOException
  {
    os.print(DAY_NAMES[(int) (_dayOfEpoch % 7 + 11) % 7]);
    os.write(',');
    os.write(' ');
    os.print((_dayOfMonth + 1) / 10);
    os.print((_dayOfMonth + 1) % 10);
    os.write(' ');
    os.print(MONTH_NAMES[(int) _month]);
    os.write(' ');
    os.print(_year);
    os.write(' ');
    os.print((_timeOfDay / 36000000) % 10);
    os.print((_timeOfDay / 3600000) % 10);
    os.write(':');
    os.print((_timeOfDay / 600000) % 6);
    os.print((_timeOfDay / 60000) % 10);
    os.write(':');
    os.print((_timeOfDay / 10000) % 6);
    os.print((_timeOfDay / 1000) % 10);

    if (_zoneName == null) {
      os.print(" GMT");
      return;
    }

    long offset = _zoneOffset;

    if (offset < 0) {
      os.write(' ');
      os.write('-');
      offset = - offset;
    } else {
      os.write(' ');
      os.write('+');
    }

    os.print((offset / 36000000) % 10);
    os.print((offset / 3600000) % 10);
    os.print((offset / 600000) % 6);
    os.print((offset / 60000) % 10);

    os.write(' ');
    os.write('(');
    os.print(_zoneName);
    os.write(')');
  }

  /**
   * Prints the time in ISO 8601
   */
  public String printISO8601()
  {
    StringBuilder sb = new StringBuilder();

    if (_year > 0) {
      sb.append((_year / 1000) % 10);
      sb.append((_year / 100) % 10);
      sb.append((_year / 10) % 10);
      sb.append(_year % 10);
      sb.append('-');
      sb.append(((_month + 1) / 10) % 10);
      sb.append((_month + 1) % 10);
      sb.append('-');
      sb.append(((_dayOfMonth + 1) / 10) % 10);
      sb.append((_dayOfMonth + 1) % 10);
    }

    long time = _timeOfDay / 1000;
    long ms = _timeOfDay % 1000;

    sb.append('T');
    sb.append((time / 36000) % 10);
    sb.append((time / 3600) % 10);
      
    sb.append(':');
    sb.append((time / 600) % 6);
    sb.append((time / 60) % 10);
	
    sb.append(':');
    sb.append((time / 10) % 6);
    sb.append((time / 1) % 10);

    if (ms != 0) {
      sb.append('.');
      sb.append((ms / 100) % 10);
      sb.append((ms / 10) % 10);
      sb.append(ms % 10);
    }

    if (_zoneName == null) {
      sb.append("Z");
      return sb.toString();
    }

    // server/1471 - XXX: was commented out
    long offset = _zoneOffset;

    if (offset < 0) {
      sb.append("-");
      offset = - offset;
    } else
      sb.append("+");

    sb.append((offset / 36000000) % 10);
    sb.append((offset / 3600000) % 10);
    sb.append(':');
    sb.append((offset / 600000) % 6);
    sb.append((offset / 60000) % 10);

    return sb.toString();
  }

  /**
   * Prints just the date component of ISO 8601
   */
  public String printISO8601Date()
  {
    CharBuffer cb = new CharBuffer();

    if (_year > 0) {
      cb.append((_year / 1000) % 10);
      cb.append((_year / 100) % 10);
      cb.append((_year / 10) % 10);
      cb.append(_year % 10);
      cb.append('-');
      cb.append(((_month + 1) / 10) % 10);
      cb.append((_month + 1) % 10);
      cb.append('-');
      cb.append(((_dayOfMonth + 1) / 10) % 10);
      cb.append((_dayOfMonth + 1) % 10);
    }

    return cb.toString();
  }

  /**
   * Formats a date.
   *
   * @param time the time to format
   * @param format the format string
   */
  public synchronized static String formatGMT(long gmtTime, String format)
  {
    _gmtDate.setGMTTime(gmtTime);

    return _gmtDate.format(new CharBuffer(), format).toString();
  }

  /**
   * Formats a date, using the default time format.
   *
   * @param time the time to format
   */
  public synchronized static String formatGMT(long gmtTime)
  {
    _gmtDate.setGMTTime(gmtTime);

    return _gmtDate.printDate();
  }

  /**
   * Formats a time in the local time zone.
   *
   * @param time in milliseconds, GMT, from the epoch.
   * @param format formatting string.
   */
  public synchronized static String formatLocal(long gmtTime, String format)
  {
    _localDate.setGMTTime(gmtTime);

    return _localDate.format(new CharBuffer(), format).toString();
  }

  /**
   * Formats a time in the local time zone, using the default format.
   *
   * @param time in milliseconds, GMT, from the epoch.
   */
  public synchronized static String formatLocal(long gmtTime)
  {
    _localDate.setGMTTime(gmtTime);

    return _localDate.printDate();
  }

  /**
   * Formats a time in the local time zone.
   *
   * @param time in milliseconds, GMT, from the epoch.
   * @param format formatting string.
   */
  public synchronized static CharBuffer formatLocal(CharBuffer cb,
                                                    long gmtTime,
                                                    String format)
  {
    _localDate.setGMTTime(gmtTime);

    return _localDate.format(cb, format);
  }

  public synchronized static String formatISO8601(long gmtTime)
  {
    if (_gmtDate == null)
      _gmtDate = new QDate();

    _gmtDate.setGMTTime(gmtTime);

    return _gmtDate.printISO8601();
  }

  /**
   * Global date must be synchronized before you can do anything on it.
   */
  public static QDate getGlobalDate()
  {
    return _localDate;
  }

  /**
   * Formats the current date.
   */
  public String format(String format)
  {
    CharBuffer cb = new CharBuffer();

    return format(cb, format).close();
  }

  /**
   * Format the date using % escapes:
   *
   * <table>
   * <tr><td>%a<td>day of week (short)
   * <tr><td>%A<td>day of week (verbose)
   * <tr><td>%b<td>day of month (short)
   * <tr><td>%B<td>day of month (verbose)
   * <tr><td>%c<td>Java locale date
   * <tr><td>%d<td>day of month (two-digit)
   * <tr><td>%H<td>24-hour (two-digit)
   * <tr><td>%I<td>12-hour (two-digit)
   * <tr><td>%j<td>day of year (three-digit)
   * <tr><td>%m<td>month (two-digit)
   * <tr><td>%M<td>minutes
   * <tr><td>%p<td>am/pm
   * <tr><td>%S<td>seconds
   * <tr><td>%s<td>milliseconds
   * <tr><td>%x<td>Java locale short date
   * <tr><td>%X<td>Java locale short time
   * <tr><td>%W<td>week in year (three-digit)
   * <tr><td>%w<td>day of week (one-digit)
   * <tr><td>%y<td>year (two-digit)
   * <tr><td>%Y<td>year (four-digit)
   * <tr><td>%Z<td>time zone (name)
   * <tr><td>%z<td>time zone (+/-0800)
   * </table>
   */
  public CharBuffer format(CharBuffer cb, String format)
  {
    int length = format.length();
    for (int i = 0; i < length; i++) {
      char ch = format.charAt(i);
      if (ch != '%') {
	cb.append(ch);
	continue;
      }

      switch (format.charAt(++i)) {
      case 'a':
	cb.append(SHORT_WEEKDAY[getDayOfWeek() - 1]);
	break;

      case 'A':
	cb.append(LONG_WEEKDAY[getDayOfWeek() - 1]);
	break;

      case 'b':
	cb.append(SHORT_MONTH[(int) _month]);
	break;

      case 'B':
	cb.append(LONG_MONTH[(int) _month]);
	break;

      case 'c':
	cb.append(printLocaleDate());
	break;

      case 'd':
	cb.append((_dayOfMonth + 1) / 10);
	cb.append((_dayOfMonth + 1) % 10);
	break;

      case 'H':
	int hour = (int) (_timeOfDay / 3600000) % 24;
	cb.append(hour / 10);
	cb.append(hour % 10);
	break;

      case 'I':
	hour = (int) (_timeOfDay / 3600000) % 12;
	if (hour == 0)
	  hour = 12;
	cb.append(hour / 10);
	cb.append(hour % 10);
	break;

      case 'j':
	cb.append((_dayOfYear + 1) / 100);
	cb.append((_dayOfYear + 1) / 10 % 10);
	cb.append((_dayOfYear + 1) % 10);
	break;

      case 'm':
	cb.append((_month + 1) / 10);
	cb.append((_month + 1) % 10);
	break;

      case 'M':
	cb.append((_timeOfDay / 600000) % 6);
	cb.append((_timeOfDay / 60000) % 10);
	break;

      case 'p':
	hour = (int) (_timeOfDay / 3600000) % 24;
	if (hour < 12)
	  cb.append("am");
	else
	  cb.append("pm");
	break;

      case 'S':
	cb.append((_timeOfDay / 10000) % 6);
	cb.append((_timeOfDay / 1000) % 10);
	break;

      case 's':
	cb.append((_timeOfDay / 100) % 10);
	cb.append((_timeOfDay / 10) % 10);
	cb.append(_timeOfDay % 10);
	break;

      case 'W':
	int week = getWeek();
	cb.append((week + 1) / 10);
	cb.append((week + 1) % 10);
	break;

      case 'w':
	cb.append(getDayOfWeek() - 1);
	break;

      case 'x':
        cb.append(printShortLocaleDate());
        break;
        
      case 'X':
        cb.append(printShortLocaleTime());
        break;
    
      case 'y':
	cb.append(_year / 10 % 10);
	cb.append(_year % 10);
	break;

      case 'Y':
	cb.append(_year / 1000 % 10);
	cb.append(_year / 100 % 10);
	cb.append(_year / 10 % 10);
	cb.append(_year % 10);
	break;

      case 'Z':
        if (_zoneName == null)
          cb.append("GMT");
        else
          cb.append(_zoneName);
	break;

      case 'z':
        long offset = _zoneOffset;

        if (offset < 0) {
          cb.append("-");
          offset = - offset;
        }
        else
          cb.append("+");

        cb.append((offset / 36000000) % 10);
        cb.append((offset / 3600000) % 10);
        cb.append((offset / 600000) % 6);
        cb.append((offset / 60000) % 10);
	break;

      default:
	cb.append(format.charAt(i));
      }
    }

    return cb;
  }

  /*
   * XXX: buggy (Because cal is buggy), may have to implement the sdf
   */
  public String printLocaleDate()
  {
    _date.setTime(_localTimeOfEpoch);

    // SimpleDateFormat sdf = new SimpleDateFormat();
    // System.out.println("" + sdf.toPattern());

    if (_dateFormat == null)
      _dateFormat = DateFormat.getInstance();

    return _dateFormat.format(_date);
  }

  /**
   * Returns a date in M/dd/yy format (i.e. 11/30/69 in US locale).
   */
  public String printShortLocaleDate()
  {
    _date.setTime(_localTimeOfEpoch);

    if (_shortDateFormat == null)
      _shortDateFormat = DateFormat.getDateInstance(DateFormat.SHORT);

    return _shortDateFormat.format(_date);
  }
  
  /**
   * Returns a date in H:mm:ss PM format.
   */
  public String printShortLocaleTime()
  {
    _date.setTime(_localTimeOfEpoch);

    if (_shortTimeFormat == null)
      _shortTimeFormat = DateFormat.getTimeInstance(DateFormat.SHORT);