be.ac.ulg.montefiore.run.totem.trafficMatrix.model.impl
Class AbstractLinkLoadStrategy

java.lang.Object
  be.ac.ulg.montefiore.run.totem.trafficMatrix.model.impl.AbstractLinkLoadComputer
      be.ac.ulg.montefiore.run.totem.trafficMatrix.model.impl.AbstractLinkLoadStrategy

All Implemented Interfaces:

LinkLoadComputer, LinkLoadStrategy

Direct Known Subclasses:

BasicIGPShortcutStrategy, IGPShortcutStrategy, OverlayStrategy, SPFLinkLoadStrategy

public abstract class AbstractLinkLoadStrategy
extends AbstractLinkLoadComputer
implements LinkLoadStrategy

This adapter can be used by link load strategy implementations to avoid property methods redefinition. It uses HybridLoadData.

Creation date: 28-Jun-2005 18:00:25

Author:

Fabian Skivee (skivee@run.montefiore.ulg.ac.be)

Field Summary

protected SettableHybridLoadData	data
protected boolean	ECMP
protected SPF	spf
protected TrafficMatrix	tm

Fields inherited from class be.ac.ulg.montefiore.run.totem.trafficMatrix.model.impl.AbstractLinkLoadComputer

changeListener, domain

Constructor Summary

protected	AbstractLinkLoadStrategy(Domain domain, TrafficMatrix tm) Creates a linkLoadStrategy object to compute load on the given domain from the given traffic matrix.
protected	AbstractLinkLoadStrategy(Domain domain, TrafficMatrix tm, LinkLoadComputerInvalidator changeListener) Creates a linkLoadStrategy object to compute load on the given domain from the given traffic matrix.

Method Summary

LoadData	detachData() Returns the data used by the link load computer and do not use it internally any more.
boolean	equals(java.lang.Object o) returns true if the LinkLoadComputer uses the same parameters as the object o.
HybridLoadData	getData() Returns hybrid data
java.lang.String	getShortName() Return a string representing the parameters in short.
SPF	getSPFAlgo() Get the SPF (Shortest Path First algorithm) property.
java.util.List<TrafficMatrix>	getTrafficMatrices() TODO: maybe change this to a set Returns the traffic matrix.
int	hashCode()
boolean	isECMP() Get the ECMP (Equal-Cost Multi-Path) property.
void	setECMP(boolean ECMP) Set the ECMP (Equal-Cost Multi-Path) property.
void	setSPFAlgo(SPF spf) Set the SPF (Shortest Path First algorithm) property.
void	setTm(TrafficMatrix tm) Sets a new traffic matrix to calculate load.
java.lang.String	toString()

Methods inherited from class be.ac.ulg.montefiore.run.totem.trafficMatrix.model.impl.AbstractLinkLoadComputer

addListener, dataChanged, destroy, getDomain, invalidate, isUpToDate, removeListener, setUptoDate, startListening, stopListening, update

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface be.ac.ulg.montefiore.run.totem.trafficMatrix.model.LinkLoadComputer

addListener, destroy, getDomain, invalidate, isUpToDate, recompute, removeListener, startListening, stopListening, update

Field Detail

ECMP

protected boolean ECMP

spf

protected SPF spf

tm

protected TrafficMatrix tm

data

protected SettableHybridLoadData data

Constructor Detail

AbstractLinkLoadStrategy

protected AbstractLinkLoadStrategy(Domain domain,
                                   TrafficMatrix tm)

Creates a linkLoadStrategy object to compute load on the given domain from the given traffic matrix. Sets the default property value : ECMP = false, stopOnError = true, spf = CSPF. Use the default LinkLoadComputerInvalidator (LinkLoadStrategyInvalidator).

Parameters:

domain -

tm -

AbstractLinkLoadStrategy

protected AbstractLinkLoadStrategy(Domain domain,
                                   TrafficMatrix tm,
                                   LinkLoadComputerInvalidator changeListener)

Creates a linkLoadStrategy object to compute load on the given domain from the given traffic matrix. Sets the default property value : ECMP = false, stopOnError = true, spf = CSPF. Use the given LinkLoadComputerInvalidator as invalidator.

Parameters:

domain -

tm -

changeListener -

Method Detail

setTm

public void setTm(TrafficMatrix tm)

Sets a new traffic matrix to calculate load. Also invalidate the data.

Specified by:

setTm in interface LinkLoadStrategy

Parameters:

tm -

detachData

public LoadData detachData()

Description copied from interface: LinkLoadComputer

Returns the data used by the link load computer and do not use it internally any more. After the data has been detached, the load has to be computed again by a call to LinkLoadComputer.recompute().

Specified by:

detachData in interface LinkLoadComputer

Returns:

getData

public HybridLoadData getData()

Returns hybrid data

Specified by:

getData in interface LinkLoadComputer

Returns:

isECMP

public boolean isECMP()

Get the ECMP (Equal-Cost Multi-Path) property.

By default : false

Specified by:

isECMP in interface LinkLoadStrategy

Returns:

true if equal-cost multi-path is activated and false otherwise

setECMP

public void setECMP(boolean ECMP)

Set the ECMP (Equal-Cost Multi-Path) property.

Specified by:

setECMP in interface LinkLoadStrategy

Parameters:

ECMP - true if equal-cost multi-path must be activated and false otherwise

getSPFAlgo

public SPF getSPFAlgo()

Get the SPF (Shortest Path First algorithm) property. The SPF is the routing algorithm used to compute the link load.

By default : dijkstra SPF implemented by the class CSPF.

Specified by:

getSPFAlgo in interface LinkLoadStrategy

Returns:

the SPF

setSPFAlgo

public void setSPFAlgo(SPF spf)

Set the SPF (Shortest Path First algorithm) property. The SPF is the routing algorithm used to compute the link load.

Specified by:

setSPFAlgo in interface LinkLoadStrategy

Parameters:

spf - the SPF to use in the link load computation

getShortName

public java.lang.String getShortName()

Description copied from interface: LinkLoadComputer

Return a string representing the parameters in short.

Specified by:

getShortName in interface LinkLoadComputer

Returns:

getTrafficMatrices

public java.util.List<TrafficMatrix> getTrafficMatrices()

Description copied from interface: LinkLoadComputer

TODO: maybe change this to a set Returns the traffic matrix.

Specified by:

getTrafficMatrices in interface LinkLoadComputer

Returns:

toString

public java.lang.String toString()

Specified by:

toString in interface LinkLoadStrategy

Overrides:

toString in class java.lang.Object

equals

public boolean equals(java.lang.Object o)

Description copied from interface: LinkLoadComputer

returns true if the LinkLoadComputer uses the same parameters as the object o. (the computed data at a given moment are equivalent)

Specified by:

equals in interface LinkLoadComputer

Specified by:

equals in interface LinkLoadStrategy

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Specified by:

hashCode in interface LinkLoadComputer

Specified by:

hashCode in interface LinkLoadStrategy

Overrides:

hashCode in class java.lang.Object