aim4.im.v2i.policy

Class BasePolicy

java.lang.Object

aim4.im.v2i.policy.BasePolicy

All Implemented Interfaces:

BasePolicyCallback, ExtendedBasePolicyCallback, Policy

public final class BasePolicy
extends Object
implements Policy, ExtendedBasePolicyCallback

The base policy.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	BasePolicy.ProposalFilterResult The result of the standard proposal filter
static class	BasePolicy.ReservationRecord The record of a reservation.
static class	BasePolicy.ReserveParam The reservation parameter record generated by processProposals()

Field Summary

Fields

Modifier and Type	Field and Description
protected V2IManagerCallback	im The V2IManager of which this Policy is a part.

Constructor Summary

Constructors

Constructor and Description
BasePolicy(V2IManagerCallback im, RequestHandler requestHandler) Create a new base policy for a given V2IManagerCallback (implemented by a V2IManager) and a request handler.
BasePolicy(V2IManagerCallback im, RequestHandler requestHandler, StatCollector<BasePolicy> statCollector) Create a new base policy for a given V2IManagerCallback (implemented by a V2IManager) and a request handler.

Method Summary

Methods

Modifier and Type	Method and Description
void	act(double timeStep) Give the policy a chance to do any processing it might need to do in order to respond to requests, if it hasn't responded to them already.
BasePolicy.ReserveParam	findReserveParam(Request msg, List<Request.Proposal> proposals) Compute the reservation parameter given the request message and a set of proposals.
double	getCurrentTime() Get the current time
RequestHandler	getRequestHandler() Get the request handler.
ReservationGrid	getReservationGrid() Get the reservation grid.
StatCollector<BasePolicy>	getStatCollector() Get the statistic collector.
TrackModel	getTrackMode()
boolean	hasReservation(int vin) Check whether the vehicle currently has a reservation.
void	processAwayMsg(Away msg) Submit an away message to the policy.
void	processCancelMsg(Cancel msg) Submit a cancel message to the policy.
void	processDoneMsg(Done msg) Submit a done message to the policy.
void	processV2IMessage(V2IMessage msg) Process a V2I message
void	sendComfirmMsg(int latestRequestId, BasePolicy.ReserveParam reserveParam) Send a confirm message
void	sendRejectMsg(int vin, int latestRequestId, Reject.Reason reason) Send a reject message
void	setRequestHandler(RequestHandler RequestHandler) Set the request handler.
void	setV2IManagerCallback(V2IManagerCallback im) Set the V2I manager call-back.
static BasePolicy.ProposalFilterResult	standardProposalsFilter(List<Request.Proposal> proposals, double currentTime) Remove the proposals that are either too early or too late.

Methods inherited from class java.lang.Object

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

Field Detail

im

protected V2IManagerCallback im

The V2IManager of which this Policy is a part.

Constructor Detail

BasePolicy

public BasePolicy(V2IManagerCallback im,
          RequestHandler requestHandler)

Create a new base policy for a given V2IManagerCallback (implemented by a V2IManager) and a request handler.

Parameters:

im - the V2IManagerCallback for which this FCFSPolicy is being created

requestHandler - the request handler

BasePolicy

public BasePolicy(V2IManagerCallback im,
          RequestHandler requestHandler,
          StatCollector<BasePolicy> statCollector)

Create a new base policy for a given V2IManagerCallback (implemented by a V2IManager) and a request handler.

Parameters:

im - the V2IManagerCallback for which this FCFSPolicy is being created

requestHandler - the request handler

statCollector - the statistic collector

Method Detail

standardProposalsFilter

public static BasePolicy.ProposalFilterResult standardProposalsFilter(List<Request.Proposal> proposals,
                                                      double currentTime)

Remove the proposals that are either too early or too late.

Parameters:

proposals - the list of proposals

currentTime - the current time

Returns:

the proposal filter result

setV2IManagerCallback

public void setV2IManagerCallback(V2IManagerCallback im)

Set the V2I manager call-back.

Specified by:

setV2IManagerCallback in interface Policy

Parameters:

im - the V2I manager's call-back

getRequestHandler

public RequestHandler getRequestHandler()

Get the request handler.

Returns:

the request handler.

setRequestHandler

public void setRequestHandler(RequestHandler RequestHandler)

Set the request handler.

Parameters:

RequestHandler - the request handler.

act

public void act(double timeStep)

Give the policy a chance to do any processing it might need to do in order to respond to requests, if it hasn't responded to them already. Only used for policies that don't respond immediately to requests.

Specified by:

act in interface Policy

Parameters:

timeStep - the size of the time step to simulate, in seconds

sendComfirmMsg

public void sendComfirmMsg(int latestRequestId,
                  BasePolicy.ReserveParam reserveParam)

Send a confirm message

Specified by:

sendComfirmMsg in interface BasePolicyCallback

Parameters:

latestRequestId - the latest request id of the vehicle

reserveParam - the reservation parameter

sendRejectMsg

public void sendRejectMsg(int vin,
                 int latestRequestId,
                 Reject.Reason reason)

Send a reject message

Specified by:

sendRejectMsg in interface BasePolicyCallback

Parameters:

vin - the VIN

latestRequestId - the latest request id of the vehicle

reason - the reason of rejection

findReserveParam

public BasePolicy.ReserveParam findReserveParam(Request msg,
                                       List<Request.Proposal> proposals)

Compute the reservation parameter given the request message and a set of proposals.

Specified by:

findReserveParam in interface BasePolicyCallback

Parameters:

msg - the request message

proposals - the set of proposals

Returns:

the reservation parameters; null if the reservation is infeasible.

getCurrentTime

public double getCurrentTime()

Get the current time

Specified by:

getCurrentTime in interface BasePolicyCallback

Returns:

the current time

getReservationGrid

public ReservationGrid getReservationGrid()

Get the reservation grid.

Specified by:

getReservationGrid in interface ExtendedBasePolicyCallback

Returns:

the reservation grid.

hasReservation

public boolean hasReservation(int vin)

Check whether the vehicle currently has a reservation.

Specified by:

hasReservation in interface BasePolicyCallback

Parameters:

vin - the VIN of the vehicle

Returns:

whether the vehicle currently has a reservation.

processV2IMessage

public void processV2IMessage(V2IMessage msg)

Process a V2I message

Specified by:

processV2IMessage in interface Policy

Parameters:

msg - the V2I message

processCancelMsg

public void processCancelMsg(Cancel msg)

Submit a cancel message to the policy.

Parameters:

msg - the cancel message

processDoneMsg

public void processDoneMsg(Done msg)

Submit a done message to the policy.

Parameters:

msg - the done message

processAwayMsg

public void processAwayMsg(Away msg)

Submit an away message to the policy.

Parameters:

msg - the away message

getStatCollector

public StatCollector<BasePolicy> getStatCollector()

Get the statistic collector.

Specified by:

getStatCollector in interface Policy

Returns:

the statistic collector

getTrackMode

public TrackModel getTrackMode()

Specified by:

getTrackMode in interface BasePolicyCallback