Package org.btrplace.scheduler.runner.disjoint.splitter

Class ConstraintSplitterMapper

java.lang.Object

org.btrplace.scheduler.runner.disjoint.splitter.ConstraintSplitterMapper

public class ConstraintSplitterMapper
extends Object

A customizable bridge to indicate which ConstraintSplitter to use for a given constraint.

Author:

Fabien Hermenier

Constructor Summary

Constructors

Constructor	Description
ConstraintSplitterMapper()	Make a new bridge.

Method Summary

Modifier and Type	Method	Description
ConstraintSplitter<? extends Constraint>	getSplitter(Class<? extends Constraint> c)	Get the splitter associated to a Constraint.
boolean	isRegistered(Class<? extends Constraint> c)	Check if a ConstraintSplitter is registered for a given Constraint.
static ConstraintSplitterMapper	newBundle()	Make a new bridge and register every splitters supported by default.
boolean	register(ConstraintSplitter<? extends Constraint> ccb)	Register a splitter.
boolean	split(Constraint c, Instance i, List<Instance> partitions, gnu.trove.map.hash.TIntIntHashMap vmPartition, gnu.trove.map.hash.TIntIntHashMap nodePosition)	Split a given Constraint using the associated splitter, if exists.
boolean	unRegister(Class<? extends Constraint> c)	Un-register the splitter associated to a given Constraint if exists.

Methods inherited from class java.lang.Object

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

Constructor Details

ConstraintSplitterMapper

public ConstraintSplitterMapper()

Make a new bridge.

Method Details

newBundle

public static ConstraintSplitterMapper newBundle()

Make a new bridge and register every splitters supported by default.

Returns:

the fulfilled bridge.

register

public boolean register(ConstraintSplitter<? extends Constraint> ccb)

Register a splitter.

Parameters:

ccb - the splitter to register

Returns:

true if no splitter previously registered for the given constraint was deleted

unRegister

public boolean unRegister(Class<? extends Constraint> c)

Un-register the splitter associated to a given Constraint if exists.

Parameters:

c - the class of the Constraint to un-register

Returns:

true if a builder was registered

isRegistered

public boolean isRegistered(Class<? extends Constraint> c)

Check if a ConstraintSplitter is registered for a given Constraint.

Parameters:

c - the constraint to check

Returns:

true iff a builder is registered

getSplitter

public ConstraintSplitter<? extends Constraint> getSplitter(Class<? extends Constraint> c)

Get the splitter associated to a Constraint.

Parameters:

c - the constraint

Returns:

the associated builder if exists. null otherwise

split

public boolean split(Constraint c, Instance i, List<Instance> partitions, gnu.trove.map.hash.TIntIntHashMap vmPartition, gnu.trove.map.hash.TIntIntHashMap nodePosition)

Split a given Constraint using the associated splitter, if exists.

Parameters:

c - the constraint to map

i - the original instance to split

partitions - the partitions splitting the original instance

vmPartition - the partition associated to each VM

nodePosition - the partition associated to each node

Returns:

false iff this leads to a problem without solutions.