Package org.drasyl.handler.sntp

Class SntpMessage

java.lang.Object

org.drasyl.handler.sntp.SntpMessage

public abstract class SntpMessage
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final int	CLIENT_MODE
static final int	LI_NOT_SYNC	NTP server is not synchronized.
static final int	SERVER_MODE
static final int	SIZE
static final int	TRANSMIT_TIMESTAMP_OFFSET
static final int	VERSION_NUMBER

Constructor Summary

Constructors

Constructor	Description
SntpMessage()

Method Summary

Modifier and Type	Method	Description
abstract int	getLeapIndicator()
abstract int	getMode()
abstract long	getOriginateTimestamp()
abstract int	getPoll()
abstract int	getPrecision()
abstract long	getReceiveTimestamp()
abstract int	getReferenceIdentifier()
abstract long	getReferenceTimestamp()
abstract float	getRootDelay()
abstract float	getRootDispersion()
abstract int	getStratum()
abstract long	getTransmitTimestamp()
abstract int	getVersionNumber()
static SntpMessage	of(int leapIndicator, int versionNumber, int mode, int stratum, int poll, int precision, float rootDelay, float rootDispersion, int referenceIdentifier, long referenceTimestamp, long originateTimestamp, long receiveTimestamp, long transmitTimestamp)
static SntpMessage	of(long transmitTimestamp)	Creates a client SntpMessage.
static long	toJavaTime(long ntpTime)	Converts ntpTime to the java time format.
static long	toNTPTime(long javaTime)	Converts javaTime to the correct NTP time format as defined in RFC-1305.

Methods inherited from class java.lang.Object

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

Field Details

SIZE

public static final int SIZE

See Also:

• Constant Field Values

VERSION_NUMBER

public static final int VERSION_NUMBER

See Also:

• Constant Field Values

CLIENT_MODE

public static final int CLIENT_MODE

See Also:

• Constant Field Values

SERVER_MODE

public static final int SERVER_MODE

See Also:

• Constant Field Values

LI_NOT_SYNC

public static final int LI_NOT_SYNC

NTP server is not synchronized. Typically, we do not want to use this kind of servers.

See Also:

• Constant Field Values

TRANSMIT_TIMESTAMP_OFFSET

public static final int TRANSMIT_TIMESTAMP_OFFSET

See Also:

• Constant Field Values

Constructor Details

SntpMessage

public SntpMessage()

Method Details

of

public static SntpMessage of(int leapIndicator,
 int versionNumber,
 int mode,
 int stratum,
 int poll,
 int precision,
 float rootDelay,
 float rootDispersion,
 int referenceIdentifier,
 long referenceTimestamp,
 long originateTimestamp,
 long receiveTimestamp,
 long transmitTimestamp)

of

public static SntpMessage of(long transmitTimestamp)

Creates a client SntpMessage.

Parameters:

transmitTimestamp - the current timestamp in java format.

Returns:

a client SntpMessage.

getLeapIndicator

public abstract int getLeapIndicator()

getVersionNumber

public abstract int getVersionNumber()

getMode

public abstract int getMode()

getStratum

public abstract int getStratum()

getPoll

public abstract int getPoll()

getPrecision

public abstract int getPrecision()

getRootDelay

public abstract float getRootDelay()

getRootDispersion

public abstract float getRootDispersion()

getReferenceIdentifier

public abstract int getReferenceIdentifier()

getReferenceTimestamp

public abstract long getReferenceTimestamp()

getOriginateTimestamp

public abstract long getOriginateTimestamp()

getReceiveTimestamp

public abstract long getReceiveTimestamp()

getTransmitTimestamp

public abstract long getTransmitTimestamp()

toNTPTime

public static long toNTPTime(long javaTime)

Converts javaTime to the correct NTP time format as defined in RFC-1305.

Parameters:

javaTime - the time in java format

Returns:

time in NTP format as defined in RFC-1305

toJavaTime

public static long toJavaTime(long ntpTime)

Converts ntpTime to the java time format.

Parameters:

ntpTime - time in format as defined in RFC-1305

Returns:

time in java format