org.apache.commons.net.ntp
Class NtpUtils

java.lang.Object
  org.apache.commons.net.ntp.NtpUtils

public final class NtpUtils
extends Object

Common NtpUtils Helper class.

Version:

$Revision: 1299238 $

Author:

Jason Mathews, MITRE Corp

Constructor Summary

NtpUtils()

Method Summary

static String	getHostAddress(int address) Returns 32-bit integer address to IPv4 address string "%d.%d.%d.%d" format.
static String	getModeName(int mode) Return human-readable name of message mode type (RFC 1305).
static String	getRefAddress(NtpV3Packet packet) Returns NTP packet reference identifier as IP address.
static String	getReferenceClock(NtpV3Packet message) Get refId as reference clock string (e.g.

Methods inherited from class java.lang.Object

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

Constructor Detail

NtpUtils

public NtpUtils()

Method Detail

getHostAddress

public static String getHostAddress(int address)

Returns 32-bit integer address to IPv4 address string "%d.%d.%d.%d" format.

Parameters:

address - the 32-bit address

Returns:

the raw IP address in a string format.

getRefAddress

public static String getRefAddress(NtpV3Packet packet)

Returns NTP packet reference identifier as IP address.

Parameters:

packet - NTP packet

Returns:

the packet reference id (as IP address) in "%d.%d.%d.%d" format.

getReferenceClock

public static String getReferenceClock(NtpV3Packet message)

Get refId as reference clock string (e.g. GPS, WWV, LCL). If string is invalid (non-ASCII character) then returns empty string "". For details refer to the Comprehensive List of Clock Drivers.

Parameters:

message -

Returns:

reference clock string if primary NTP server

getModeName

public static String getModeName(int mode)

Return human-readable name of message mode type (RFC 1305).

Parameters:

mode -

Returns:

mode name