Java Code Examples for org.apache.hadoop.hbase.HConstants#DAY_IN_SECONDS

/**
 * Convert a human readable time interval to seconds. Examples of the human readable
 * time intervals are: 50 DAYS 1 HOUR 30 MINUTES , 25000 SECONDS etc.
 * The units of time specified can be in uppercase as well as lowercase. Also, if a
 * single number is specified without any time unit, it is assumed to be in seconds.
 * @param humanReadableInterval
 * @return value in seconds
 */
private static long humanReadableIntervalToSec(final String humanReadableInterval)
        throws HBaseException {
  if (humanReadableInterval == null || humanReadableInterval.equalsIgnoreCase("FOREVER")) {
    return HConstants.FOREVER;
  }

  try {
    return Long.parseLong(humanReadableInterval);
  } catch(NumberFormatException ex) {
    LOG.debug("Given interval value is not a number, parsing for human readable format");
  }

  String days = null;
  String hours = null;
  String minutes = null;
  String seconds = null;
  String expectedTtl = null;
  long ttl;

  Matcher matcher = PrettyPrinter.INTERVAL_PATTERN.matcher(humanReadableInterval);
  if (matcher.matches()) {
    expectedTtl = matcher.group(2);
    days = matcher.group(4);
    hours = matcher.group(6);
    minutes = matcher.group(8);
    seconds = matcher.group(10);
  }
  ttl = 0;
  ttl += days != null ? Long.parseLong(days)*HConstants.DAY_IN_SECONDS:0;
  ttl += hours != null ? Long.parseLong(hours)*HConstants.HOUR_IN_SECONDS:0;
  ttl += minutes != null ? Long.parseLong(minutes)*HConstants.MINUTE_IN_SECONDS:0;
  ttl += seconds != null ? Long.parseLong(seconds):0;

  if (expectedTtl != null && Long.parseLong(expectedTtl) != ttl) {
    throw new HBaseException("Malformed TTL string: TTL values in seconds and human readable" +
            "format do not match");
  }
  return ttl;
}
 

@edu.umd.cs.findbugs.annotations.SuppressWarnings(value="ICAST_INTEGER_MULTIPLY_CAST_TO_LONG",
    justification="Will not overflow")
private static String humanReadableTTL(final long interval){
  StringBuilder sb = new StringBuilder();
  int days, hours, minutes, seconds;

  // edge cases first
  if (interval == Integer.MAX_VALUE) {
    sb.append("FOREVER");
    return sb.toString();
  }
  if (interval < HConstants.MINUTE_IN_SECONDS) {
    sb.append(interval);
    sb.append(" SECOND").append(interval == 1 ? "" : "S");
    return sb.toString();
  }

  days  =   (int) (interval / HConstants.DAY_IN_SECONDS);
  hours =   (int) (interval - HConstants.DAY_IN_SECONDS * days) / HConstants.HOUR_IN_SECONDS;
  minutes = (int) (interval - HConstants.DAY_IN_SECONDS * days
      - HConstants.HOUR_IN_SECONDS * hours) / HConstants.MINUTE_IN_SECONDS;
  seconds = (int) (interval - HConstants.DAY_IN_SECONDS * days
      - HConstants.HOUR_IN_SECONDS * hours - HConstants.MINUTE_IN_SECONDS * minutes);

  sb.append(interval);
  sb.append(" SECONDS (");

  if (days > 0) {
    sb.append(days);
    sb.append(" DAY").append(days == 1 ? "" : "S");
  }

  if (hours > 0) {
    sb.append(days > 0 ? " " : "");
    sb.append(hours);
    sb.append(" HOUR").append(hours == 1 ? "" : "S");
  }

  if (minutes > 0) {
    sb.append(days + hours > 0 ? " " : "");
    sb.append(minutes);
    sb.append(" MINUTE").append(minutes == 1 ? "" : "S");
  }

  if (seconds > 0) {
    sb.append(days + hours + minutes > 0 ? " " : "");
    sb.append(seconds);
    sb.append(" SECOND").append(minutes == 1 ? "" : "S");
  }

  sb.append(")");

  return sb.toString();
}