Interface NtpV3Packet

All Known Implementing Classes:

NtpV3Impl

public interface NtpV3Packet

Interface for a NtpV3Packet with get/set methods corresponding to the fields in the NTP Data Message Header described in RFC 1305.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	LI_ALARM_CONDITION	3
static final int	LI_LAST_MINUTE_HAS_59_SECONDS	2
static final int	LI_LAST_MINUTE_HAS_61_SECONDS	1
static final int	LI_NO_WARNING	0
static final int	MODE_BROADCAST	Mode option 5.
static final int	MODE_CLIENT	Mode option 3.
static final int	MODE_CONTROL_MESSAGE	Mode option 6.
static final int	MODE_PRIVATE	Mode option 7.
static final int	MODE_RESERVED	Mode option 0.
static final int	MODE_SERVER	Mode option 4.
static final int	MODE_SYMMETRIC_ACTIVE	Mode option 1.
static final int	MODE_SYMMETRIC_PASSIVE	Mode option 2.
static final int	NTP_MAXCLOCK	10
static final int	NTP_MAXPOLL	14
static final int	NTP_MINCLOCK	1
static final int	NTP_MINPOLL	4
static final int	NTP_PORT	Standard NTP UDP port
static final String	TYPE_DAYTIME	"DAYTIME"
static final String	TYPE_ICMP	"ICMP"
static final String	TYPE_NTP	"NTP"
static final String	TYPE_TIME	"TIME"
static final int	VERSION_3	3
static final int	VERSION_4	4

Method Summary

Modifier and Type	Method	Description
DatagramPacket	getDatagramPacket()	Gets a datagram packet with the NTP parts already filled in.
int	getLeapIndicator()	Gets the leap indicator as defined in RFC-1305.
int	getMode()	Gets the mode as defined in RFC-1305.
String	getModeName()	Gets the mode as human readable string; for example, 3=Client.
TimeStamp	getOriginateTimeStamp()	Gets the originate time as defined in RFC-1305.
int	getPoll()	Gets the poll interval as defined in RFC-1305.
int	getPrecision()	Gets the precision as defined in RFC-1305.
TimeStamp	getReceiveTimeStamp()	Gets the receive time as defined in RFC-1305.
int	getReferenceId()	Gets the reference id (32-bit code) as defined in RFC-1305.
String	getReferenceIdString()	Gets the reference ID string.
TimeStamp	getReferenceTimeStamp()	Gets the reference time as defined in RFC-1305.
int	getRootDelay()	Gets the root delay as defined in RFC-1305.
double	getRootDelayInMillisDouble()	Gets root delay in milliseconds.
int	getRootDispersion()	Gets the root dispersion as defined in RFC-1305.
long	getRootDispersionInMillis()	Gets the root dispersion in milliseconds.
double	getRootDispersionInMillisDouble()	Gets the root dispersion in milliseconds.
int	getStratum()	Gets the stratum as defined in RFC-1305.
TimeStamp	getTransmitTimeStamp()	Gets the transmit timestamp as defined in RFC-1305.
String	getType()	Gets the type of time packet.
int	getVersion()	Gets version as defined in RFC-1305.
void	setDatagramPacket(DatagramPacket dp)	Sets the contents of this object from the datagram packet
void	setLeapIndicator(int li)	Sets leap indicator.
void	setMode(int mode)	Sets mode as defined in RFC-1305
void	setOriginateTimeStamp(TimeStamp ts)	Sets originate timestamp given NTP TimeStamp object.
void	setPoll(int poll)	Sets poll interval as defined in RFC-1305.
void	setPrecision(int precision)	Sets precision as defined in RFC-1305
void	setReceiveTimeStamp(TimeStamp ts)	Sets receive timestamp given NTP TimeStamp object.
void	setReferenceId(int refId)	Sets reference clock identifier field.
void	setReferenceTime(TimeStamp ts)	Sets the reference timestamp given NTP TimeStamp object.
void	setRootDelay(int delay)	Sets root delay as defined in RFC-1305
void	setRootDispersion(int dispersion)	Sets the dispersion value.
void	setStratum(int stratum)	Sets stratum as defined in RFC-1305
void	setTransmitTime(TimeStamp ts)	Sets the transmit timestamp given NTP TimeStamp object.
void	setVersion(int version)	Sets version as defined in RFC-1305

Field Details

NTP_PORT

static final int NTP_PORT

Standard NTP UDP port

See Also:

• Constant Field Values

LI_NO_WARNING

static final int LI_NO_WARNING

0

See Also:

• Constant Field Values

LI_LAST_MINUTE_HAS_61_SECONDS

static final int LI_LAST_MINUTE_HAS_61_SECONDS

1

See Also:

• Constant Field Values

LI_LAST_MINUTE_HAS_59_SECONDS

static final int LI_LAST_MINUTE_HAS_59_SECONDS

2

See Also:

• Constant Field Values

LI_ALARM_CONDITION

static final int LI_ALARM_CONDITION

3

See Also:

• Constant Field Values

MODE_RESERVED

static final int MODE_RESERVED

Mode option 0.

See Also:

• Constant Field Values

MODE_SYMMETRIC_ACTIVE

static final int MODE_SYMMETRIC_ACTIVE

Mode option 1.

See Also:

• Constant Field Values

MODE_SYMMETRIC_PASSIVE

static final int MODE_SYMMETRIC_PASSIVE

Mode option 2.

See Also:

• Constant Field Values

MODE_CLIENT

static final int MODE_CLIENT

Mode option 3.

See Also:

• Constant Field Values

MODE_SERVER

static final int MODE_SERVER

Mode option 4.

See Also:

• Constant Field Values

MODE_BROADCAST

static final int MODE_BROADCAST

Mode option 5.

See Also:

• Constant Field Values

MODE_CONTROL_MESSAGE

static final int MODE_CONTROL_MESSAGE

Mode option 6.

See Also:

• Constant Field Values

MODE_PRIVATE

static final int MODE_PRIVATE

Mode option 7.

See Also:

• Constant Field Values

NTP_MINPOLL

static final int NTP_MINPOLL

4

See Also:

• Constant Field Values

NTP_MAXPOLL

static final int NTP_MAXPOLL

14

See Also:

• Constant Field Values

NTP_MINCLOCK

static final int NTP_MINCLOCK

1

See Also:

• Constant Field Values

NTP_MAXCLOCK

static final int NTP_MAXCLOCK

10

See Also:

• Constant Field Values

VERSION_3

static final int VERSION_3

3

See Also:

• Constant Field Values

VERSION_4

static final int VERSION_4

4

See Also:

• Constant Field Values

TYPE_NTP

static final String TYPE_NTP

"NTP"

See Also:

• Constant Field Values

TYPE_ICMP

static final String TYPE_ICMP

"ICMP"

See Also:

• Constant Field Values

TYPE_TIME

static final String TYPE_TIME

"TIME"

See Also:

• Constant Field Values

TYPE_DAYTIME

static final String TYPE_DAYTIME

"DAYTIME"

See Also:

• Constant Field Values

Method Details

getDatagramPacket

DatagramPacket getDatagramPacket()

Gets a datagram packet with the NTP parts already filled in.

Returns:

a datagram packet with the NTP parts already filled in.

getLeapIndicator

int getLeapIndicator()

Gets the leap indicator as defined in RFC-1305.

Returns:

the leap indicator as defined in RFC-1305.

getMode

int getMode()

Gets the mode as defined in RFC-1305.

Returns:

the mode as defined in RFC-1305.

getModeName

String getModeName()

Gets the mode as human readable string; for example, 3=Client.

Returns:

the mode as human readable string; for example, 3=Client.

getOriginateTimeStamp

TimeStamp getOriginateTimeStamp()

Gets the originate time as defined in RFC-1305.

Returns:

the originate time as defined in RFC-1305.

getPoll

int getPoll()

Gets the poll interval as defined in RFC-1305. Field range between NTP_MINPOLL and NTP_MAXPOLL.

Returns:

the poll interval as defined in RFC-1305. Field range between NTP_MINPOLL and NTP_MAXPOLL.

getPrecision

int getPrecision()

Gets the precision as defined in RFC-1305.

Returns:

the precision as defined in RFC-1305.

getReceiveTimeStamp

TimeStamp getReceiveTimeStamp()

Gets the receive time as defined in RFC-1305.

Returns:

the receive time as defined in RFC-1305.

getReferenceId

int getReferenceId()

Gets the reference id (32-bit code) as defined in RFC-1305.

Returns:

the reference id (32-bit code) as defined in RFC-1305.

getReferenceIdString

String getReferenceIdString()

Gets the reference ID string.

Returns:

the reference ID string.

getReferenceTimeStamp

TimeStamp getReferenceTimeStamp()

Gets the reference time as defined in RFC-1305.

Returns:

the reference time as defined in RFC-1305.

getRootDelay

int getRootDelay()

Gets the root delay as defined in RFC-1305.

Returns:

the root delay as defined in RFC-1305.

getRootDelayInMillisDouble

double getRootDelayInMillisDouble()

Gets root delay in milliseconds.

Returns:

root delay in milliseconds.

getRootDispersion

int getRootDispersion()

Gets the root dispersion as defined in RFC-1305.

Returns:

the root dispersion as defined in RFC-1305.

getRootDispersionInMillis

long getRootDispersionInMillis()

Gets the root dispersion in milliseconds.

Returns:

the root dispersion in milliseconds.

getRootDispersionInMillisDouble

double getRootDispersionInMillisDouble()

Gets the root dispersion in milliseconds.

Returns:

the root dispersion in milliseconds.

getStratum

int getStratum()

Gets the stratum as defined in RFC-1305.

Returns:

the stratum as defined in RFC-1305.

getTransmitTimeStamp

TimeStamp getTransmitTimeStamp()

Gets the transmit timestamp as defined in RFC-1305.

Returns:

the transmit timestamp as defined in RFC-1305.

getType

String getType()

Gets the type of time packet. The values (e.g. NTP, TIME, ICMP, ...) correspond to the protocol used to obtain the timing information.

Returns:

packet type string identifier

getVersion

int getVersion()

Gets version as defined in RFC-1305.

Returns:

version as defined in RFC-1305.

setDatagramPacket

void setDatagramPacket(DatagramPacket dp)

Sets the contents of this object from the datagram packet

Parameters:

dp - the packet

setLeapIndicator

void setLeapIndicator(int li)

Sets leap indicator.

Parameters:

li - leap indicator code

setMode

void setMode(int mode)

Sets mode as defined in RFC-1305

Parameters:

mode - the mode to set

setOriginateTimeStamp

void setOriginateTimeStamp(TimeStamp ts)

Sets originate timestamp given NTP TimeStamp object.

Parameters:

ts - timestamp

setPoll

void setPoll(int poll)

Sets poll interval as defined in RFC-1305. Field range between NTP_MINPOLL and NTP_MAXPOLL.

Parameters:

poll - the interval to set

setPrecision

void setPrecision(int precision)

Sets precision as defined in RFC-1305

Parameters:

precision - Precision

Since:

3.4

setReceiveTimeStamp

void setReceiveTimeStamp(TimeStamp ts)

Sets receive timestamp given NTP TimeStamp object.

Parameters:

ts - timestamp

setReferenceId

void setReferenceId(int refId)

Sets reference clock identifier field.

Parameters:

refId - the clock id field to set

setReferenceTime

void setReferenceTime(TimeStamp ts)

Sets the reference timestamp given NTP TimeStamp object.

Parameters:

ts - timestamp

setRootDelay

void setRootDelay(int delay)

Sets root delay as defined in RFC-1305

Parameters:

delay - the delay to set

Since:

3.4

setRootDispersion

void setRootDispersion(int dispersion)

Sets the dispersion value.

Parameters:

dispersion - the value.

Since:

3.4

setStratum

void setStratum(int stratum)

Sets stratum as defined in RFC-1305

Parameters:

stratum - the stratum to set

setTransmitTime

void setTransmitTime(TimeStamp ts)

Sets the transmit timestamp given NTP TimeStamp object.

Parameters:

ts - timestamp

setVersion

void setVersion(int version)

Sets version as defined in RFC-1305

Parameters:

version - the version to set