/**
* 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);
}
/**
* Returns a BigDecimal timestamp in seconds with microsecond precision, using System.nanoTime()
* and uptimeNanosToTimestamp()
*
* @return
*/
public static BigDecimal getTimestampWithMicroPrecision() {
return TimeUtil.uptimeNanosToTimestamp(System.nanoTime());
}
