Class EmpiricalStrategy

java.lang.Object

NetStrategies.RoutingStrategy

NetStrategies.RoutingStrategies.EmpiricalStrategy

All Implemented Interfaces:

AutoCheck

public class EmpiricalStrategy
extends RoutingStrategy

The node, into which job must be routed, is chosen using an empirical strategy. An empirical strategy is based on an empirical distribution, that is a distribution constructed from the data provided by the user.

Author:

Federico Granata, Stefano Omini, Bertoli Marco

Constructor Summary

Constructors

Constructor	Description
EmpiricalStrategy(EmpiricalEntry[] entries)	Creates an empirical strategy using the passed data.
EmpiricalStrategy(Empirical distribution, EmpiricalPar param)	Creates an empirical strategy by adding nodes and naming them with the specified names.

Method Summary

Modifier and Type	Method	Description
boolean	check()	It controls whether the distribution is correct or not.
NetNode	getOutNode(NetNode ownerNode, JobClass jobClass)	Gets the output node, into which the job must be routed, using an empirical strategy.
void	setRandomEngine(RandomEngine randomEngine)

Methods inherited from class RoutingStrategy

getOutNode, getOutNode

Methods inherited from class Object

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

Constructor Details

EmpiricalStrategy

public EmpiricalStrategy(EmpiricalEntry[] entries)
                  throws LoadException,
IncorrectDistributionParameterException

Creates an empirical strategy using the passed data.

Parameters:

entries - Entries used to construct the empirical distribution (each entry contains a node name and the corresponding routing probability).

Throws:

LoadException

IncorrectDistributionParameterException

EmpiricalStrategy

public EmpiricalStrategy(Empirical distribution,
 EmpiricalPar param)
                  throws LoadException

Creates an empirical strategy by adding nodes and naming them with the specified names.

Parameters:

distribution - The empirical distribution

param - The parameters of the empirical distribution

Throws:

LoadException

Method Details

check

public boolean check()

It controls whether the distribution is correct or not. For the empirical distribution, the parameter is correct if the sum of the routing probabilities are greater than zero and they sum to 1.0.

Specified by:

check in interface AutoCheck

Overrides:

check in class RoutingStrategy

getOutNode

public NetNode getOutNode(NetNode ownerNode,
 JobClass jobClass)

Gets the output node, into which the job must be routed, using an empirical strategy.

Specified by:

getOutNode in class RoutingStrategy

Parameters:

ownerNode - Owner node of the output section.

jobClass - Class of current job to be routed.

Returns:

Selected node.

setRandomEngine

public void setRandomEngine(RandomEngine randomEngine)