Package edu.tufts.hrilab.action.execution.control

Class ExitContext

java.lang.Object

edu.tufts.hrilab.action.execution.Context

edu.tufts.hrilab.action.execution.ArgumentBasedContext

edu.tufts.hrilab.action.execution.control.ExitContext

public class ExitContext
extends ArgumentBasedContext

The Exit control can be used to end the execution of a script. An ActionStatus can be specified to set the exit status. If the ActionStatus is a failure status, a list of Predicates (or java Collections) can be specified as arguments and will be used as failConditions to explain the reason behind the exit. Usage example: <control>exit FAIL not(safe) danger(ahead)</control> will exit with a FAIL status and set the two above predicates as fail conditions. Note that Collections can also be used as arguments, e.g. a set of predicates.

Field Summary

Fields inherited from class edu.tufts.hrilab.action.execution.ArgumentBasedContext

arguments, variable

Fields inherited from class edu.tufts.hrilab.action.execution.Context

caller, childContexts, cmd, constraints, endTime, log, maxTime, startTime, stateMachine

Constructor Summary

Constructors

Constructor	Description
ExitContext(Context c, StateMachine sm, List<? extends Object> inputArgs)

Method Summary

Modifier and Type	Method	Description
ExitContext	copy(Context newParent)	deep copy of the context, its status, and its children
void	doStep()	If Context has a concrete execution step to perform, it should happen in this method.
protected Context	getNextStepForType()	Get the next step (i.e., context) to be executed.
protected void	setupArguments(List<? extends Object> inputArgs, List<? extends Object> returnArgs)

Methods inherited from class edu.tufts.hrilab.action.execution.ArgumentBasedContext

addArgument, addArgument, bindPredicate, bindText, copyArguments, getArgument, getArguments, getArgumentSilent, getArgumentType, getArgumentValue, getEvaluatedArgument, getLocalArgument, getSignatureInPredicateForm, hasArgumentInScope, hasLocalArgument, redistributeArguments, setArgument

Methods inherited from class edu.tufts.hrilab.action.execution.Context

acquireLocks, addEvent, addEvent, addEvent, causedFailure, copyInternal, createSimulatedEquivalent, getActor, getActualLogicalValue, getChildContexts, getCommand, getConstraints, getContextDescription, getContextDescription, getDuration, getElapsedTime, getEndTime, getEquivalentContext, getExecType, getId, getJustification, getLogicalValue, getMaxTime, getNearestTerminatedAncestor, getNextStep, getParentContext, getRootContext, getStartTime, getStateMachine, getStateUpdates, getStatus, hasNormCheckingAncestor, isAction, isApproved, isAsynchronous, isFailure, isSimulation, isSuccess, isTerminated, performAdditionalStatusUpdates, releaseLocks, resetConcreteContext, resetContext, resetCoreContext, setChildContexts, setConstraints, setEndTime, setExecType, setLogicalValue, setStartTime, setStartTime, setStateMachine, setStatus, setStatus, setTimeout, setupNextStep, setupNextStep, startOverAllMonitor, toString, updatePerformanceModels, verifyEffects, verifyReturnValue, waitForTermination, waitForTermination

Methods inherited from class java.lang.Object

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

Constructor Details

ExitContext

public ExitContext(Context c,
 StateMachine sm,
 List<? extends Object> inputArgs)

Method Details

setupArguments

protected void setupArguments(List<? extends Object> inputArgs,
 List<? extends Object> returnArgs)

Specified by:

setupArguments in class ArgumentBasedContext

doStep

public void doStep()

Description copied from class: Context

If Context has a concrete execution step to perform, it should happen in this method. This should not include setting up next steps (i.e., children to perform), which should happen in the setupNextStep method. Primitive actions and operators (i.e., leaf nodes in the context tree) are examples where this method should be implemented.

Overrides:

doStep in class Context

getNextStepForType

protected Context getNextStepForType()

Description copied from class: Context

Get the next step (i.e., context) to be executed. Returns null if there are no more steps. TODO: remove this method

Overrides:

getNextStepForType in class Context

Returns:

copy

public ExitContext copy(Context newParent)

Description copied from class: Context

deep copy of the context, its status, and its children

Specified by:

copy in class Context

Parameters:

newParent - parent to attach the copied context too

Returns:

the copied context