net.i2p.time
Class Timestamper

java.lang.Object
  net.i2p.time.Timestamper

All Implemented Interfaces:

java.lang.Runnable

public class Timestamper
extends java.lang.Object
implements java.lang.Runnable

Periodically query a series of NTP servers and update any associated listeners. It tries the NTP servers in order, contacting them using SNTP (UDP port 123). By default, it does this every 5 minutes, forever.

Nested Class Summary

static interface

Timestamper.UpdateListener Interface to receive update notifications for when we query the time Only used by Clock.

Field Summary

static java.lang.String	PROP_CONCURRING_SERVERS
static java.lang.String	PROP_DISABLED
static java.lang.String	PROP_IP_COUNTRY
static java.lang.String	PROP_QUERY_FREQUENCY
static java.lang.String	PROP_SERVER_LIST

Constructor Summary

Timestamper(I2PAppContext ctx)

Timestamper(I2PAppContext ctx, Timestamper.UpdateListener lsnr)

Timestamper(I2PAppContext ctx, Timestamper.UpdateListener lsnr, boolean daemon)

Method Summary

void	addListener(Timestamper.UpdateListener lsnr)
boolean	getIsDisabled()
Timestamper.UpdateListener	getListener(int index)
int	getListenerCount()
int	getQueryFrequencyMs()
java.lang.String	getServer(int index)
int	getServerCount()
static void	main(java.lang.String[] args)
void	removeListener(Timestamper.UpdateListener lsnr)
void	run()
void	waitForInitialization()

Methods inherited from class java.lang.Object

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

Field Detail

PROP_QUERY_FREQUENCY

public static final java.lang.String PROP_QUERY_FREQUENCY

See Also:

Constant Field Values

PROP_SERVER_LIST

public static final java.lang.String PROP_SERVER_LIST

See Also:

Constant Field Values

PROP_DISABLED

public static final java.lang.String PROP_DISABLED

See Also:

Constant Field Values

PROP_CONCURRING_SERVERS

public static final java.lang.String PROP_CONCURRING_SERVERS

See Also:

Constant Field Values

PROP_IP_COUNTRY

public static final java.lang.String PROP_IP_COUNTRY

See Also:

Constant Field Values

Constructor Detail

Timestamper

public Timestamper(I2PAppContext ctx)

Timestamper

public Timestamper(I2PAppContext ctx,
                   Timestamper.UpdateListener lsnr)

Timestamper

public Timestamper(I2PAppContext ctx,
                   Timestamper.UpdateListener lsnr,
                   boolean daemon)

Method Detail

getServerCount

public int getServerCount()

getServer

public java.lang.String getServer(int index)

getQueryFrequencyMs

public int getQueryFrequencyMs()

getIsDisabled

public boolean getIsDisabled()

addListener

public void addListener(Timestamper.UpdateListener lsnr)

removeListener

public void removeListener(Timestamper.UpdateListener lsnr)

getListenerCount

public int getListenerCount()

getListener

public Timestamper.UpdateListener getListener(int index)

waitForInitialization

public void waitForInitialization()

run

public void run()

Specified by:

run in interface java.lang.Runnable

main

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