serverP2P

Class RatioWatcher

java.lang.Object

serverP2P.RatioWatcher

All Implemented Interfaces:

java.lang.Runnable

Direct Known Subclasses:

RatioWatcherTCP, RatioWatcherUDP

public abstract class RatioWatcher
extends java.lang.Object
implements java.lang.Runnable

Class allowing to keep the tracker informed about ratios

Version:

1.0

Author:

Louis Royer, Flavien Haas, JS Auge

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.Map<HostItem,java.lang.Double>	cachePunishmentProbability
protected boolean	force
protected boolean	lock
protected Logger	logger
(package private) static double	punishmentFactor
protected boolean	stop
protected java.lang.Thread	thread
protected long	time
protected HostItem	tracker

Constructor Summary

Constructors

Constructor and Description
RatioWatcher(Logger logger, long millis, HostItem tracker) Constructor

Method Summary

Modifier and Type	Method and Description
protected void	clean() Invalidate the cache by cleaning all hashmaps
protected abstract void	closeTrackerSocket() Closes tracker socket
protected abstract <T extends Payload> ProtocolP2PPacket<?>	createProtocolP2PPacket(T payload) Create packets
protected double	getPunishmentProbability(HostItem application) Get Up-ratio for an applications
protected abstract java.lang.Object	getTrackerSocket() Tracker socket getter
void	run() Runnable implementation
void	setStop() Ask the thread to stop
void	setThread(java.lang.Thread thread) Set thread
protected abstract void	writeLog(java.lang.Exception e, LogLevel logLevel) Implementation of writeLog
protected abstract void	writeLog(java.lang.String text, LogLevel logLevel) Implementation of writeLog

Methods inherited from class java.lang.Object

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

Field Detail

punishmentFactor

static final double punishmentFactor

See Also:

Constant Field Values

logger

protected Logger logger

stop

protected volatile boolean stop

time

protected long time

force

protected boolean force

tracker

protected HostItem tracker

thread

protected java.lang.Thread thread

cachePunishmentProbability

protected java.util.Map<HostItem,java.lang.Double> cachePunishmentProbability

lock

protected boolean lock

Constructor Detail

RatioWatcher

public RatioWatcher(Logger logger,
                    long millis,
                    HostItem tracker)

Constructor

Parameters:

logger - Logger

millis - Time interval before recheck

tracker - HostItem for the tracker

Method Detail

run

public void run()

Runnable implementation

Specified by:

run in interface java.lang.Runnable

clean

protected void clean()
              throws java.lang.InterruptedException

Invalidate the cache by cleaning all hashmaps

Throws:

java.lang.InterruptedException

getPunishmentProbability

protected double getPunishmentProbability(HostItem application)
                                   throws InternalError,
                                          UnknownHost

Get Up-ratio for an applications

Parameters:

application - HostItem of the application

Returns:

Punishment Probability

Throws:

UnknownHost

InternalError

setStop

public void setStop()

Ask the thread to stop

writeLog

protected abstract void writeLog(java.lang.String text,
                                 LogLevel logLevel)

Implementation of writeLog

Parameters:

text - Text to log

logLevel - level of logging

writeLog

protected abstract void writeLog(java.lang.Exception e,
                                 LogLevel logLevel)

Implementation of writeLog

Parameters:

e - exception to log

logLevel - level of logging

setThread

public void setThread(java.lang.Thread thread)

Set thread

Parameters:

thread - Thread

createProtocolP2PPacket

protected abstract <T extends Payload> ProtocolP2PPacket<?> createProtocolP2PPacket(T payload)

Create packets

Parameters:

payload - Payload

getTrackerSocket

protected abstract java.lang.Object getTrackerSocket()

Tracker socket getter

Returns:

tracker socket

closeTrackerSocket

protected abstract void closeTrackerSocket()

Closes tracker socket