Method parseDateTimeString

src/utils/DateTime.java:76–169

Attempts to parse a timestamp from a given string Formats accepted are: Relative: 5m-ago, 1h-ago, etc. See #parseDuration Absolute human readable dates: "yyyy/MM/dd-HH:mm:ss" "yyyy/MM/dd HH:mm:ss" "yyyy/MM/dd-HH:mm" "yyyy/M

(final String datetime, 
      final String tz)

   * @throws IllegalArgumentException if the request was malformed 
   */
  public static final long parseDateTimeString(final String datetime, 
      final String tz) {
    if (datetime == null || datetime.isEmpty())
      return -1;

    if (datetime.matches("^[0-9]+ms$")) {
      return Tags.parseLong(datetime.replaceFirst("^([0-9]+)(ms)$", "$1"));
    }

    if (datetime.toLowerCase().equals("now")) {
      return System.currentTimeMillis();
    }

    if (datetime.toLowerCase().endsWith("-ago")) {
      long interval = DateTime.parseDuration(
        datetime.substring(0, datetime.length() - 4));
      return System.currentTimeMillis() - interval;
    }
    
    if (datetime.contains("/") || datetime.contains(":")) {
      try {
        SimpleDateFormat fmt = null;
        switch (datetime.length()) {
          // these were pulled from cliQuery but don't work as intended since 
          // they assume a date of 1970/01/01. Can be fixed but may not be worth
          // it
          // case 5:
          //   fmt = new SimpleDateFormat("HH:mm");
          //   break;
          // case 8:
          //   fmt = new SimpleDateFormat("HH:mm:ss");
          //   break;
          case 10:
            fmt = new SimpleDateFormat("yyyy/MM/dd");
            break;
          case 16:
            if (datetime.contains("-"))
              fmt = new SimpleDateFormat("yyyy/MM/dd-HH:mm");
            else
              fmt = new SimpleDateFormat("yyyy/MM/dd HH:mm");
            break;
          case 19:
            if (datetime.contains("-"))
              fmt = new SimpleDateFormat("yyyy/MM/dd-HH:mm:ss");
            else
              fmt = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
            break;
          default:
            // todo - deal with internationalization, other time formats
            throw new IllegalArgumentException("Invalid absolute date: " 
                + datetime);
        }
        if (tz != null && !tz.isEmpty())
          setTimeZone(fmt, tz);
        return fmt.parse(datetime).getTime();
      } catch (ParseException e) {
        throw new IllegalArgumentException("Invalid date: " + datetime  
            + ". " + e.getMessage());