yartiss.engine.simulation.system

Class AbstractTask

java.lang.Object

yartiss.engine.simulation.system.AbstractTask

All Implemented Interfaces:

ITask

Direct Known Subclasses:

PeriodicTask

public abstract class AbstractTask
extends Object
implements ITask

Author:

Younes Chandarli

Field Summary

Fields

Modifier and Type	Field and Description
protected IEnergyConsumptionProfile	consumptionProfile

Constructor Summary

Constructors

Constructor and Description
AbstractTask(long firstRelease, long wcet, long wcee, long period, long deadline, int priority, IEnergyConsumptionProfile p)

Method Summary

Methods

Modifier and Type	Method and Description
void	activate(long time) Activates a job of this task with a release time of 'time' units
boolean	checkDeadlineMissed(long time) Checks if the task missed its deadline by checking its current job at a certain instant of time
PriorityQueue<Job>	getActiveJobs() Returns the active jobs of the task
Job	getCurrentJob() Gets the current job of the task, i.e. the first job that has not been completed
long	getDeadline() Gets the relative deadline of the task
long	getEnergyConsumption(long time) Gets the energy consumption of the task if executed during a certain period of time
IEnergyConsumptionProfile	getEnergyConsumptionProfile()
long	getEnergyConsumptionRate() Gets the energy consumption rate of the task rate = wcee / wcet
long	getFirstRelease() Gets the first release time of the task
int	getId() Gets the identifier of the task
Job	getLastExecutedJob() Gets task's last executed job
long	getNextAbsoluteDeadline(long time) Gets the absolute deadline of the next job of the task
long	getNextActivation(long time) Gets the next activation time of the task
long	getNextDeadline(long time, boolean nextPeriod) Gets the absolute deadline of the current job of the task according to the value of the boolean 'nextPeriod'
long	getPeriod() Gets the relative period of the task
long	getPreviousAbsoluteDeadline(long time) Gets the absolute deadline of the previous job of the task
int	getPriority() Gets the priority of the task
long	getRemainingCost() Gets the remaining time cost of task's current job
abstract String	getType() Gets the type of the task (simple, subtask, graph, ...)
long	getWcee() Gets the worst-case execution energy consumption of the task
long	getWcet() Gets the worst-case execution time of the task
boolean	isActivationTime(long time) Checks if a new job of task can be activated at 'time' instant of time
boolean	isActive() Checks if the task has active jobs
boolean	lastExecutedJobHasCompleted() Checks if the active job is not the last executed one
protected void	setEnergyConsumptionProfile(IEnergyConsumptionProfile p)
void	setFirstRelease(long firstRelease) Sets the first release time of a task
void	setId(int id) Sets an identifier to the task
void	setLastExecutedJob(Job lastExecutedJob) Sets last executed job of the task
void	setPriority(int priority) Sets the priority of the task

Methods inherited from class java.lang.Object

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

Methods inherited from interface yartiss.engine.simulation.system.ITask

cloneTask, getLaxity

Field Detail

consumptionProfile

protected IEnergyConsumptionProfile consumptionProfile

Constructor Detail

AbstractTask

public AbstractTask(long firstRelease,
            long wcet,
            long wcee,
            long period,
            long deadline,
            int priority,
            IEnergyConsumptionProfile p)

Method Detail

getId

public int getId()

Description copied from interface: ITask

Gets the identifier of the task

Specified by:

getId in interface ITask

Returns:

task's id

setId

public void setId(int id)

Description copied from interface: ITask

Sets an identifier to the task

Specified by:

setId in interface ITask

Parameters:

id - task's identifier to be set

getFirstRelease

public long getFirstRelease()

Description copied from interface: ITask

Gets the first release time of the task

Specified by:

getFirstRelease in interface ITask

Returns:

task's first release time

setFirstRelease

public void setFirstRelease(long firstRelease)

Description copied from interface: ITask

Sets the first release time of a task

Specified by:

setFirstRelease in interface ITask

Parameters:

firstRelease - first release time

getWcet

public long getWcet()

Description copied from interface: ITask

Gets the worst-case execution time of the task

Specified by:

getWcet in interface ITask

Returns:

task's WCET

getWcee

public long getWcee()

Description copied from interface: ITask

Gets the worst-case execution energy consumption of the task

Specified by:

getWcee in interface ITask

Returns:

task's WCEE

getPeriod

public long getPeriod()

Description copied from interface: ITask

Gets the relative period of the task

Specified by:

getPeriod in interface ITask

Returns:

task's period

getDeadline

public long getDeadline()

Description copied from interface: ITask

Gets the relative deadline of the task

Specified by:

getDeadline in interface ITask

Returns:

task's deadline

getPriority

public int getPriority()

Description copied from interface: ITask

Gets the priority of the task

Specified by:

getPriority in interface ITask

Returns:

task's priority

setPriority

public void setPriority(int priority)

Description copied from interface: ITask

Sets the priority of the task

Specified by:

setPriority in interface ITask

Parameters:

priority - task's priority to be set

getEnergyConsumptionRate

public long getEnergyConsumptionRate()

Description copied from interface: ITask

Gets the energy consumption rate of the task rate = wcee / wcet

Specified by:

getEnergyConsumptionRate in interface ITask

Returns:

task's energy consumption rate

getEnergyConsumption

public long getEnergyConsumption(long time)

Description copied from interface: ITask

Gets the energy consumption of the task if executed during a certain period of time

Specified by:

getEnergyConsumption in interface ITask

Parameters:

time - number of time's units

Returns:

task's energy consumption

getActiveJobs

public PriorityQueue<Job> getActiveJobs()

Description copied from interface: ITask

Returns the active jobs of the task

Specified by:

getActiveJobs in interface ITask

Returns:

task's active jobs

isActive

public boolean isActive()

Description copied from interface: ITask

Checks if the task has active jobs

Specified by:

isActive in interface ITask

Returns:

true if there are active jobs, false otherwise

activate

public void activate(long time)

Description copied from interface: ITask

Activates a job of this task with a release time of 'time' units

Specified by:

activate in interface ITask

Parameters:

time - time units

getCurrentJob

public Job getCurrentJob()

Description copied from interface: ITask

Gets the current job of the task, i.e. the first job that has not been completed

Specified by:

getCurrentJob in interface ITask

Returns:

task's current job

checkDeadlineMissed

public boolean checkDeadlineMissed(long time)

Description copied from interface: ITask

Checks if the task missed its deadline by checking its current job at a certain instant of time

Specified by:

checkDeadlineMissed in interface ITask

Parameters:

time - time instant

Returns:

true if the task missed its deadline, false otherwise

lastExecutedJobHasCompleted

public boolean lastExecutedJobHasCompleted()

Description copied from interface: ITask

Checks if the active job is not the last executed one

Specified by:

lastExecutedJobHasCompleted in interface ITask

Returns:

true if the active job is not the last executed one, false otherwise

getRemainingCost

public long getRemainingCost()

Description copied from interface: ITask

Gets the remaining time cost of task's current job

Specified by:

getRemainingCost in interface ITask

Returns:

task's remaining time cost

getNextDeadline

public long getNextDeadline(long time,
                   boolean nextPeriod)

Description copied from interface: ITask

Gets the absolute deadline of the current job of the task according to the value of the boolean 'nextPeriod'

Specified by:

getNextDeadline in interface ITask

Parameters:

time - current instant of time

nextPeriod - if true, next period of the task is calculated. If false, current period is calculated

Returns:

task's next deadline

getNextActivation

public long getNextActivation(long time)

Description copied from interface: ITask

Gets the next activation time of the task

Specified by:

getNextActivation in interface ITask

Parameters:

time - current time

Returns:

task's next activation time

isActivationTime

public boolean isActivationTime(long time)

Description copied from interface: ITask

Checks if a new job of task can be activated at 'time' instant of time

Specified by:

isActivationTime in interface ITask

Parameters:

time - current time

Returns:

true if it is activation time, false otherwise

getNextAbsoluteDeadline

public long getNextAbsoluteDeadline(long time)

Description copied from interface: ITask

Gets the absolute deadline of the next job of the task

Specified by:

getNextAbsoluteDeadline in interface ITask

Parameters:

time - current instant of time

Returns:

task's next absolute deadline

getPreviousAbsoluteDeadline

public long getPreviousAbsoluteDeadline(long time)

Description copied from interface: ITask

Gets the absolute deadline of the previous job of the task

Specified by:

getPreviousAbsoluteDeadline in interface ITask

Returns:

task's previous absolute deadline

getLastExecutedJob

public Job getLastExecutedJob()

Description copied from interface: ITask

Gets task's last executed job

Specified by:

getLastExecutedJob in interface ITask

Returns:

last executed job

setLastExecutedJob

public void setLastExecutedJob(Job lastExecutedJob)

Description copied from interface: ITask

Sets last executed job of the task

Specified by:

setLastExecutedJob in interface ITask

Parameters:

lastExecutedJob - the last executed job to set

getEnergyConsumptionProfile

public IEnergyConsumptionProfile getEnergyConsumptionProfile()

Specified by:

getEnergyConsumptionProfile in interface ITask

setEnergyConsumptionProfile

protected void setEnergyConsumptionProfile(IEnergyConsumptionProfile p)

getType

public abstract String getType()

Description copied from interface: ITask

Gets the type of the task (simple, subtask, graph, ...)

Specified by:

getType in interface ITask

Returns:

task's type