org.javades.jqueues.r5.util.predictor.queues

Class SimQueuePredictor_Preemptive<Q extends AbstractPreemptiveSimQueue>

java.lang.Object

org.javades.jqueues.r5.util.predictor.AbstractSimQueuePredictor<Q>

org.javades.jqueues.r5.util.predictor.queues.SimQueuePredictor_Preemptive<Q>

Type Parameters:

Q - The type of SimQueues supported.

All Implemented Interfaces:

SimQueueEventPredictor<Q>, SimQueuePredictor<Q>, SimQueueStatePredictor<Q>

Direct Known Subclasses:

SimQueuePredictor_P_LCFS, SimQueuePredictor_PQ, SimQueuePredictor_SRTF

public abstract class SimQueuePredictor_Preemptive<Q extends AbstractPreemptiveSimQueue>
extends AbstractSimQueuePredictor<Q>

An abstract SimQueuePredictor for preemptive queues.

Author:

Jan de Jongh, TNO

Copyright (C) 2005-2017 Jan de Jongh, TNO

This file is covered by the LICENSE file in the root of this project.

Constructor Summary

Constructors

Constructor and Description
SimQueuePredictor_Preemptive()

Method Summary

Modifier and Type	Method and Description
protected void	preemptJob(Q queue, SimQueueState<SimJob,Q> queueState, SimJob executingJob, Set<JobQueueVisitLog<SimJob,Q>> visitLogsSet) Preempts a job in given SimQueueState.

Methods inherited from class org.javades.jqueues.r5.util.predictor.AbstractSimQueuePredictor

is_ROEL_U_UnderWorkloadQueueEventClashes, is_U_UnderWorkloadQueueEventClashes, predict_SQ_SV_IOEL_U, predict_SQ_SV_ROEL_U

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.javades.jqueues.r5.util.predictor.SimQueuePredictor

matchVisitLogs_SQ_SV

Methods inherited from interface org.javades.jqueues.r5.util.predictor.SimQueueEventPredictor

createQueueState, createWorkloadSchedule_SQ_SV_ROEL_U, createWorkloadSchedule_SQ_SV, doQueueEvents_SQ_SV_ROEL_U, doWorkloadEvents_SQ_SV_ROEL_U, doWorkloadEvents_SQ_SV, getNextQueueEventTimeBeyond, updateToTime

Methods inherited from interface org.javades.jqueues.r5.util.predictor.SimQueueStatePredictor

hasServerAccessCredits, isQueueAccessVacation, isStartArmed

Constructor Detail

SimQueuePredictor_Preemptive

public SimQueuePredictor_Preemptive()

Method Detail

preemptJob

protected void preemptJob(Q queue,
                          SimQueueState<SimJob,Q> queueState,
                          SimJob executingJob,
                          Set<JobQueueVisitLog<SimJob,Q>> visitLogsSet)
                   throws SimQueuePredictionException

Preempts a job in given SimQueueState.

Updates all relevant fields in the SimQueueState and takes the appropriate action on the job that is being preempted, depending on the PreemptionStrategy on the queue.

Parameters:

queue - The queue, non-null.

queueState - The queue state, non-null.

executingJob - The job to preempt, non-null.

visitLogsSet - The visit-logs for logging dropped or departed jobs, may be null.

Throws:

SimQueuePredictionException - If the predictor cannot finish (e.g., due to ambiguity, complexity or plain errors).

IllegalArgumentException - If one or more of the mandatory arguments is null.

UnsupportedOperationException - If the preemption strategy is PreemptionStrategy.REDRAW of PreemptionStrategy.CUSTOM.