org.apache.directory.server.ntp.messages

Class NtpTimeStamp

java.lang.Object

org.apache.directory.server.ntp.messages.NtpTimeStamp

public class NtpTimeStamp
extends java.lang.Object

NTP timestamps are represented as a 64-bit unsigned fixed-point number, in seconds relative to 0h on 1 January 1900. The integer part is in the first 32 bits and the fraction part in the last 32 bits. In the fraction part, the non-significant low order can be set to 0.

Field Summary

Fields

Modifier and Type	Field and Description
private static java.text.SimpleDateFormat	DATE_FORMAT
private long	fraction
private static long	NTP_EPOCH_DIFFERENCE The number of milliseconds difference between the Java epoch and the NTP epoch ( January 1, 1900, 00:00:00 GMT ).
private long	seconds
private static java.util.TimeZone	UTC_TIME_ZONE

Constructor Summary

Constructors

Constructor and Description
NtpTimeStamp() Creates a new instance of NtpTimeStamp that represents the time "right now."
NtpTimeStamp(java.nio.ByteBuffer data) Creates a new instance of NtpTimeStamp from encoded data in a ByteBuffer.
NtpTimeStamp(java.util.Date date) Creates a new instance of NtpTimeStamp that represents the given Date.

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object o)
int	hashCode()
private int	makePositive(byte b)
java.lang.String	toString()
void	writeTo(java.nio.ByteBuffer buffer) Writes this NtpTimeStamp to the given ByteBuffer.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

NTP_EPOCH_DIFFERENCE

private static final long NTP_EPOCH_DIFFERENCE

The number of milliseconds difference between the Java epoch and the NTP epoch ( January 1, 1900, 00:00:00 GMT ).

See Also:

Constant Field Values

DATE_FORMAT

private static final java.text.SimpleDateFormat DATE_FORMAT

UTC_TIME_ZONE

private static final java.util.TimeZone UTC_TIME_ZONE

seconds

private long seconds

fraction

private long fraction

Constructor Detail

NtpTimeStamp

public NtpTimeStamp()

Creates a new instance of NtpTimeStamp that represents the time "right now."

NtpTimeStamp

public NtpTimeStamp(java.util.Date date)

Creates a new instance of NtpTimeStamp that represents the given Date.

Parameters:

date -

NtpTimeStamp

public NtpTimeStamp(java.nio.ByteBuffer data)

Creates a new instance of NtpTimeStamp from encoded data in a ByteBuffer.

Parameters:

data -

Method Detail

writeTo

public void writeTo(java.nio.ByteBuffer buffer)

Writes this NtpTimeStamp to the given ByteBuffer.

Parameters:

buffer -

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

makePositive

private int makePositive(byte b)