/**
  * Converts uptime nanos to a real UTC timestamp in seconds.
  *
  * @param nanos
  * @return
  */
 public static BigDecimal uptimeNanosToTimestamp(long nanos) {
   if (TimeUtil.secondsOffset == null) {
     calibrateNanosConversion();
   } else {
     long currentMillis1 = System.currentTimeMillis();
     long currentNanos = System.nanoTime();
     long currentMillis2 = System.currentTimeMillis();
     BigDecimal currentTimeStamp =
         DecimalTimeUnit.MILLISECONDS.toSeconds((currentMillis1 + currentMillis2) / 2.0);
     if (TimeUtil._uptimeNanosToTimestamp(currentNanos)
             .subtract(currentTimeStamp)
             .abs()
             .doubleValue()
         > TimeUtil.CLOCK_OFFSET_TOLERANCE) {
       calibrateNanosConversion();
     }
   }
   return TimeUtil._uptimeNanosToTimestamp(nanos);
 }
Пример #2
0
 /**
  * Returns a BigDecimal timestamp in seconds with microsecond precision, using System.nanoTime()
  * and uptimeNanosToTimestamp()
  *
  * @return
  */
 public static BigDecimal getTimestampWithMicroPrecision() {
   return TimeUtil.uptimeNanosToTimestamp(System.nanoTime());
 }