Module org.yamcs.core

Package org.yamcs.utils

Class TaiUtcConverter

java.lang.Object

org.yamcs.utils.TaiUtcConverter

public class TaiUtcConverter
extends Object

Utility class to convert between TAI and UTC. It reads the UTC-TAI.history (available at http://hpiers.obspm.fr/eoppc/bul/bulc/UTC-TAI.history)

It only supports added leap seconds not removed ones (negative leap seconds have never happened and probably never will).

It only works correctly with the times after 1972 when the difference between TAI and UTC is an integer number of seconds.

Most of the code is copied or inspired from the TAI C library http://cr.yp.to/libtai.html

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	TaiUtcConverter.DateTimeComponents
static final class	TaiUtcConverter.ValidityLine

Constructor Summary

Constructors

Constructor	Description
TaiUtcConverter()
TaiUtcConverter(InputStream utcTaiHistory)

Method Summary

Modifier and Type	Method	Description
static boolean	isLeap(int year)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

TaiUtcConverter

public TaiUtcConverter()
                throws IOException,
ParseException

Throws:

IOException

ParseException

TaiUtcConverter

public TaiUtcConverter(InputStream utcTaiHistory)
                throws IOException,
ParseException

Throws:

IOException

ParseException

Method Details

isLeap

public static boolean isLeap(int year)