net.time4j.clock

Class DaytimeClock

java.lang.Object

net.time4j.clock.AbstractClock

net.time4j.clock.NetTimeConnector<NetTimeConfiguration>

net.time4j.clock.DaytimeClock

All Implemented Interfaces:

TimeSource<Moment>

public class DaytimeClock
extends NetTimeConnector<NetTimeConfiguration>

Represents a connection to a DAYTIME-server following the old norm RFC 867.

Note that the format of the server reply is not specified by the protocol. Furthermore, many internet time servers have stopped to support this old protocol. Actually in year 2014, at least the addresses "time.nist.gov" and "time.ien.it" are still working. Applications cannot expect more than second precision at best.

Since:

2.1

Author:

Meno Hochschild

Concurrency:

This class is thread-safe and can be used by multiple threads in parallel.

Field Summary

Fields

Modifier and Type	Field and Description
static DaytimeClock	NIST Defines an instance which supports the NIST-servers using the multiple-location-address "time.nist.gov" and a specific format.

Constructor Summary

Constructors

Constructor and Description
DaytimeClock(String server, ChronoParser<Moment> parser) Creates a new instance which uses the given time server on the port 13.

Method Summary

Methods

Modifier and Type	Method and Description
String	getRawTimestamp() Tries to get the raw server timestamp as original string.

Methods inherited from class net.time4j.clock.NetTimeConnector

connect, currentTime, getLastConnectionTime, getLastOffsetInMicros, getNetTimeConfiguration, isLogEnabled, isRunning, reconfigure, setLogWriter

Methods inherited from class net.time4j.clock.AbstractClock

inLocalView, inPlatformView, inZonalView, inZonalView

Methods inherited from class java.lang.Object

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

Field Detail

NIST

public static final DaytimeClock NIST

Defines an instance which supports the NIST-servers using the multiple-location-address "time.nist.gov" and a specific format.

The format is documented at www.nist.gov.

Constructor Detail

DaytimeClock

public DaytimeClock(String server,
            ChronoParser<Moment> parser)

Creates a new instance which uses the given time server on the port 13.

Parameters:

server - time server address (example: "time.nist.gov")

parser - object interpreting the server reply

Method Detail

getRawTimestamp

public String getRawTimestamp()
                       throws IOException

Tries to get the raw server timestamp as original string.

Returns:

unparsed server reply

Throws:

IOException - if connection fails

Since:

2.1