Package org.btrplace.scheduler.choco.constraint

Class CSplitAmong

java.lang.Object

org.btrplace.scheduler.choco.constraint.CSplitAmong

All Implemented Interfaces:

ChocoConstraint, Injectable, MisplacedVMsEstimator

public class CSplitAmong
extends Object
implements ChocoConstraint

Choco implementation of the SplitAmong constraint.

Author:

Fabien Hermenier

Constructor Summary

Constructors

Constructor	Description
CSplitAmong(SplitAmong s)	Make a new constraint.

Method Summary

Modifier and Type	Method	Description
Set<VM>	getMisPlacedVMs(Instance i)	Get the VMs that are supposed to be mis-placed.
int	getPGroup(Node n)	Get the group the node belong to.
boolean	inject(Parameters ps, ReconfigurationProblem rp)	Inject the constraint into the problem.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Details

CSplitAmong

public CSplitAmong(SplitAmong s)

Make a new constraint.

Parameters:

s - the constraint to rely on

Method Details

inject

public boolean inject(Parameters ps, ReconfigurationProblem rp) throws SchedulerException

Description copied from interface: Injectable

Inject the constraint into the problem.

Specified by:

inject in interface Injectable

Parameters:

ps - the scheduler parameters

rp - the problem

Returns:

true if the injection succeeded, false if the problem is sure to not have a solution

Throws:

SchedulerException - if an error occurred while injecting.

getPGroup

public int getPGroup(Node n)

Get the group the node belong to.

Parameters:

n - the node

Returns:

the group identifier, -1 if the node does not belong to a group

getMisPlacedVMs

public Set<VM> getMisPlacedVMs(Instance i)

Description copied from interface: MisplacedVMsEstimator

Get the VMs that are supposed to be mis-placed.

Specified by:

getMisPlacedVMs in interface MisplacedVMsEstimator

Parameters:

i - the instance to inspect

Returns:

a set of VMs identifier that may be empty (when no VMs are misplaced)

toString

public String toString()

Overrides:

toString in class Object