eu.cactosfp7.cactoopt.optimisationservice.autoscaling

Class AutoScalingOptimisationAlgorithm

java.lang.Object

eu.cactosfp7.cactoopt.optimisationservice.autoscaling.AutoScalingOptimisationAlgorithm

All Implemented Interfaces:

IAutoScaler, IOptimisationAlgorithm

public class AutoScalingOptimisationAlgorithm
extends Object
implements IOptimisationAlgorithm, IAutoScaler

The Optimisation Algorithm which encapsulated the auto scaling functionality. The algorithm is periodically called and expected to decide based on the current representation of the data center which scaling actions are supposed to be taken

Author:

Sebastian Krach, Jakub Krzywda

Constructor Summary

Constructors

Constructor and Description
AutoScalingOptimisationAlgorithm()

Method Summary

Modifier and Type	Method and Description
OptimisationPlan	generateOptimizationPlan(PhysicalDCModel pdcm, LogicalDCModel ldcm, PhysicalLoadModel plm, LogicalLoadModel llm) Run an optimization with the algorithm.
OptimisationPlan	optimiseScaling(ApplicationInstance appInstance, ScalableVMImageConnector connector, LogicalLoadModel llm) Request a calculation of the optimal number of connected VMs for a scalable connection.
void	setTimeProvider(ITimeProvider provider)

Methods inherited from class java.lang.Object

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

Constructor Detail

AutoScalingOptimisationAlgorithm

public AutoScalingOptimisationAlgorithm()

Method Detail

setTimeProvider

public void setTimeProvider(ITimeProvider provider)

generateOptimizationPlan

public OptimisationPlan generateOptimizationPlan(PhysicalDCModel pdcm,
                                                 LogicalDCModel ldcm,
                                                 PhysicalLoadModel plm,
                                                 LogicalLoadModel llm)

Description copied from interface: IOptimisationAlgorithm

Run an optimization with the algorithm.

Specified by:

generateOptimizationPlan in interface IOptimisationAlgorithm

Parameters:

pdcm - Physical Data Centre Model.

ldcm - Logical Data Centre Model.

plm - Physical Load Model.

llm - Logical Load Model.

Returns:

An optimisation plan or null if no optimisation is suggested by the algorithm.

optimiseScaling

public OptimisationPlan optimiseScaling(ApplicationInstance appInstance,
                                        ScalableVMImageConnector connector,
                                        LogicalLoadModel llm)

Description copied from interface: IAutoScaler

Request a calculation of the optimal number of connected VMs for a scalable connection.

Specified by:

optimiseScaling in interface IAutoScaler

Parameters:

appInstance - The application instance.

connector - The scalable connector.

llm - Load and request information.

Returns:

An optimisation plan with suggested changes to get to the optimal number. Empty plan if nothing should be changed.