org.apache.commons.net.ntp
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.

Version:

$Revision: 165675 $ $Date: 2005-05-02 21:09:55 +0100 (Mon, 02 May 2005) $

Author:

Naz Irizarry, MITRE Corp, Jason Mathews, MITRE Corp

Field Summary

static int	LI_ALARM_CONDITION
static int	LI_LAST_MINUTE_HAS_59_SECONDS
static int	LI_LAST_MINUTE_HAS_61_SECONDS
static int	LI_NO_WARNING
static int	MODE_BROADCAST
static int	MODE_CLIENT
static int	MODE_CONTROL_MESSAGE
static int	MODE_PRIVATE
static int	MODE_RESERVED
static int	MODE_SERVER
static int	MODE_SYMMETRIC_ACTIVE
static int	MODE_SYMMETRIC_PASSIVE
static int	NTP_MAXCLOCK
static int	NTP_MAXPOLL
static int	NTP_MINCLOCK
static int	NTP_MINPOLL
static int	NTP_PORT Standard NTP UDP port
static String	TYPE_DAYTIME
static String	TYPE_ICMP
static String	TYPE_NTP
static String	TYPE_TIME
static int	VERSION_3
static int	VERSION_4

Method Summary

DatagramPacket	getDatagramPacket()
int	getLeapIndicator()
int	getMode()
String	getModeName()
TimeStamp	getOriginateTimeStamp()
int	getPoll()
int	getPrecision()
TimeStamp	getReceiveTimeStamp()
int	getReferenceId()
String	getReferenceIdString()
TimeStamp	getReferenceTimeStamp()
int	getRootDelay()
double	getRootDelayInMillisDouble()
int	getRootDispersion()
long	getRootDispersionInMillis()
double	getRootDispersionInMillisDouble()
int	getStratum()
TimeStamp	getTransmitTimeStamp()
String	getType() Return type of time packet.
int	getVersion()
void	setDatagramPacket(DatagramPacket dp) Set the contents of this object from the datagram packet
void	setLeapIndicator(int li) Set leap indicator.
void	setMode(int mode) Set mode as defined in RFC-1305
void	setOriginateTimeStamp(TimeStamp ts) Set originate timestamp given NTP TimeStamp object.
void	setPoll(int poll) Set poll interval as defined in RFC-1305.
void	setReceiveTimeStamp(TimeStamp ts) Set receive timestamp given NTP TimeStamp object.
void	setReferenceId(int refId) Set reference clock identifier field.
void	setReferenceTime(TimeStamp ts) Set the reference timestamp given NTP TimeStamp object.
void	setStratum(int stratum) Set stratum as defined in RFC-1305
void	setTransmitTime(TimeStamp ts) Set the transmit timestamp given NTP TimeStamp object.
void	setVersion(int mode) Set version as defined in RFC-1305

Field Detail

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

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Constant Field Values

LI_LAST_MINUTE_HAS_61_SECONDS

static final int LI_LAST_MINUTE_HAS_61_SECONDS

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Constant Field Values

LI_LAST_MINUTE_HAS_59_SECONDS

static final int LI_LAST_MINUTE_HAS_59_SECONDS

See Also:

Constant Field Values

LI_ALARM_CONDITION

static final int LI_ALARM_CONDITION

See Also:

Constant Field Values

MODE_RESERVED

static final int MODE_RESERVED

See Also:

Constant Field Values

MODE_SYMMETRIC_ACTIVE

static final int MODE_SYMMETRIC_ACTIVE

See Also:

Constant Field Values

MODE_SYMMETRIC_PASSIVE

static final int MODE_SYMMETRIC_PASSIVE

See Also:

Constant Field Values

MODE_CLIENT

static final int MODE_CLIENT

See Also:

Constant Field Values

MODE_SERVER

static final int MODE_SERVER

See Also:

Constant Field Values

MODE_BROADCAST

static final int MODE_BROADCAST

See Also:

Constant Field Values

MODE_CONTROL_MESSAGE

static final int MODE_CONTROL_MESSAGE

See Also:

Constant Field Values

MODE_PRIVATE

static final int MODE_PRIVATE

See Also:

Constant Field Values

NTP_MINPOLL

static final int NTP_MINPOLL

See Also:

Constant Field Values

NTP_MAXPOLL

static final int NTP_MAXPOLL

See Also:

Constant Field Values

NTP_MINCLOCK

static final int NTP_MINCLOCK

See Also:

Constant Field Values

NTP_MAXCLOCK

static final int NTP_MAXCLOCK

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Constant Field Values

VERSION_3

static final int VERSION_3

See Also:

Constant Field Values

VERSION_4

static final int VERSION_4

See Also:

Constant Field Values

TYPE_NTP

static final String TYPE_NTP

See Also:

Constant Field Values

TYPE_ICMP

static final String TYPE_ICMP

See Also:

Constant Field Values

TYPE_TIME

static final String TYPE_TIME

See Also:

Constant Field Values

TYPE_DAYTIME

static final String TYPE_DAYTIME

See Also:

Constant Field Values

Method Detail

getDatagramPacket

DatagramPacket getDatagramPacket()

Returns:

a datagram packet with the NTP parts already filled in

setDatagramPacket

void setDatagramPacket(DatagramPacket dp)

Set the contents of this object from the datagram packet

getLeapIndicator

int getLeapIndicator()

Returns:

leap indicator as defined in RFC-1305

setLeapIndicator

void setLeapIndicator(int li)

Set leap indicator.

Parameters:

li - - leap indicator code

getMode

int getMode()

Returns:

mode as defined in RFC-1305

getModeName

String getModeName()

Returns:

mode as human readable string; e.g. 3=Client

setMode

void setMode(int mode)

Set mode as defined in RFC-1305

getPoll

int getPoll()

Returns:

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

setPoll

void setPoll(int poll)

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

getPrecision

int getPrecision()

Returns:

precision as defined in RFC-1305

getRootDelay

int getRootDelay()

Returns:

root delay as defined in RFC-1305

getRootDelayInMillisDouble

double getRootDelayInMillisDouble()

Returns:

root delay in milliseconds

getRootDispersion

int getRootDispersion()

Returns:

root dispersion as defined in RFC-1305

getRootDispersionInMillis

long getRootDispersionInMillis()

Returns:

root dispersion in milliseconds

getRootDispersionInMillisDouble

double getRootDispersionInMillisDouble()

Returns:

root dispersion in milliseconds

getVersion

int getVersion()

Returns:

version as defined in RFC-1305

setVersion

void setVersion(int mode)

Set version as defined in RFC-1305

getStratum

int getStratum()

Returns:

stratum as defined in RFC-1305

setStratum

void setStratum(int stratum)

Set stratum as defined in RFC-1305

getReferenceIdString

String getReferenceIdString()

Returns:

the reference id string

getReferenceId

int getReferenceId()

Returns:

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

setReferenceId

void setReferenceId(int refId)

Set reference clock identifier field.

Parameters:

refId -

getTransmitTimeStamp

TimeStamp getTransmitTimeStamp()

Returns:

the transmit timestamp as defined in RFC-1305

getReferenceTimeStamp

TimeStamp getReferenceTimeStamp()

Returns:

the reference time as defined in RFC-1305

getOriginateTimeStamp

TimeStamp getOriginateTimeStamp()

Returns:

the originate time as defined in RFC-1305

getReceiveTimeStamp

TimeStamp getReceiveTimeStamp()

Returns:

the receive time as defined in RFC-1305

setTransmitTime

void setTransmitTime(TimeStamp ts)

Set the transmit timestamp given NTP TimeStamp object.

Parameters:

ts - - timestamp

setReferenceTime

void setReferenceTime(TimeStamp ts)

Set the reference timestamp given NTP TimeStamp object.

Parameters:

ts - - timestamp

setOriginateTimeStamp

void setOriginateTimeStamp(TimeStamp ts)

Set originate timestamp given NTP TimeStamp object.

Parameters:

ts - - timestamp

setReceiveTimeStamp

void setReceiveTimeStamp(TimeStamp ts)

Set receive timestamp given NTP TimeStamp object.

Parameters:

ts - - timestamp

getType

String getType()

Return 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