org.cloudbus.cloudsim

Class UtilizationModelStochastic

java.lang.Object

org.cloudbus.cloudsim.UtilizationModelStochastic

All Implemented Interfaces:

UtilizationModel

public class UtilizationModelStochastic
extends Object
implements UtilizationModel

The UtilizationModelStochastic class implements a model, according to which a Cloudlet generates random CPU utilization every time frame.

Since:

CloudSim Toolkit 2.0

Author:

Anton Beloglazov

Constructor Summary

Constructors

Constructor and Description
UtilizationModelStochastic() Instantiates a new utilization model stochastic.
UtilizationModelStochastic(long seed) Instantiates a new utilization model stochastic.

Method Summary

Methods

Modifier and Type	Method and Description
protected Map<Double,Double>	getHistory() Gets the history.
Random	getRandomGenerator() Gets the random generator.
double	getUtilization(double time) Returns utilization in percents according to the time.
void	loadHistory(String filename) Load history.
void	saveHistory(String filename) Save history.
protected void	setHistory(Map<Double,Double> history) Sets the history.
void	setRandomGenerator(Random randomGenerator) Sets the random generator.

Methods inherited from class java.lang.Object

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

Constructor Detail

UtilizationModelStochastic

public UtilizationModelStochastic()

Instantiates a new utilization model stochastic.

UtilizationModelStochastic

public UtilizationModelStochastic(long seed)

Instantiates a new utilization model stochastic.

Parameters:

seed - the seed

Method Detail

getUtilization

public double getUtilization(double time)

Description copied from interface: UtilizationModel

Returns utilization in percents according to the time.

Specified by:

getUtilization in interface UtilizationModel

Parameters:

time - the time

Returns:

utilization percentage

getHistory

protected Map<Double,Double> getHistory()

Gets the history.

Returns:

the history

setHistory

protected void setHistory(Map<Double,Double> history)

Sets the history.

Parameters:

history - the history

saveHistory

public void saveHistory(String filename)
                 throws Exception

Save history.

Parameters:

filename - the filename

Throws:

Exception - the exception

loadHistory

public void loadHistory(String filename)
                 throws Exception

Load history.

Parameters:

filename - the filename

Throws:

Exception - the exception

setRandomGenerator

public void setRandomGenerator(Random randomGenerator)

Sets the random generator.

Parameters:

randomGenerator - the new random generator

getRandomGenerator

public Random getRandomGenerator()

Gets the random generator.

Returns:

the random generator