net.date
Class AtomicClock

java.lang.Object
  net.date.AtomicClock

public class AtomicClock
extends java.lang.Object

Get the time from the NIST atomic clock

Version:

1.0

Author:

Douglas Lyon

Constructor Summary

AtomicClock()

Method Summary

static java.io.BufferedReader	getReader() get a reader that reads the time
static void	getTime() Reads in the time to internal state variables
static void	main(java.lang.String[] args) A unit test
static java.util.GregorianCalendar	parseDate(java.lang.String line) Convert the NIST time to an instance of a calendar
static void	processLine(java.lang.String s)
static void	setSystemTime(java.util.GregorianCalendar c) set the system clock
static void	sleep()

Methods inherited from class java.lang.Object

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

Constructor Detail

AtomicClock

public AtomicClock()

Method Detail

getReader

public static java.io.BufferedReader getReader()
                                        throws java.net.UnknownHostException,
                                               java.io.IOException

get a reader that reads the time

Returns:

the buffered reader

Throws:

java.net.UnknownHostException - It cannot connect to NIST

java.io.IOException - When we cannot set the time

Since:

9/4/02

setSystemTime

public static void setSystemTime(java.util.GregorianCalendar c)
                          throws java.io.IOException

set the system clock

Parameters:

c - A calender instance that is used to set the time

Throws:

java.io.IOException - When we cannot set the time

Since:

9/4/02

parseDate

public static java.util.GregorianCalendar parseDate(java.lang.String line)

Convert the NIST time to an instance of a calendar

Parameters:

line - The raw string returned from NIST

Returns:

a calendar instance

processLine

public static void processLine(java.lang.String s)
                        throws java.io.IOException

Parameters:

s -

Throws:

java.io.IOException

getTime

public static void getTime()
                    throws java.net.UnknownHostException,
                           java.io.IOException

Reads in the time to internal state variables

Throws:

java.net.UnknownHostException

java.io.IOException

sleep

public static void sleep()

main

public static void main(java.lang.String[] args)

A unit test

Parameters:

args - not used

Since:

1.0