Package edu.tufts.hrilab.action.execution

Class RecoveryGoalContext

java.lang.Object

edu.tufts.hrilab.action.execution.Context

edu.tufts.hrilab.action.execution.ArgumentBasedContext

edu.tufts.hrilab.action.execution.GoalContext

edu.tufts.hrilab.action.execution.RecoveryGoalContext

public class RecoveryGoalContext
extends GoalContext

Field Summary

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

executionType, goal, goalRecovery

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
RecoveryGoalContext(Context caller, StateMachine sm, ParameterizedAction recoveryAction, ExecutionType executionType, GoalRecovery recovery)

Method Summary

Modifier and Type	Method	Description
RecoveryGoalContext	copy(Context newParent)	Make a copy of this node in the execution tree for simulation purposes
void	doStep()	If Context has a concrete execution step to perform, it should happen in this method.
protected void	resetConcreteContext()	This resets fields specific to concrete sub-classes and should be overridden by inheriting classes if additional resetting needs to happen.
void	setStatus(ActionStatus eStatus, Justification justification)	Overriding setStatus to "catch" failures when a recovery operation should take place, and also to convert un-caught failures to FAIL_RECOVERY so the parent goal context can handle recovery failures differently from regular goal/action failures.

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

getGoal, getSignatureInPredicateForm, setupArguments, setupNextStep, verifyEffects

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

addArgument, addArgument, bindPredicate, bindText, copyArguments, getArgument, getArguments, getArgumentSilent, getArgumentType, getArgumentValue, getEvaluatedArgument, getLocalArgument, 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, getNextStepForType, getParentContext, getRootContext, getStartTime, getStateMachine, getStateUpdates, getStatus, hasNormCheckingAncestor, isAction, isApproved, isAsynchronous, isFailure, isSimulation, isSuccess, isTerminated, performAdditionalStatusUpdates, releaseLocks, resetContext, resetCoreContext, setChildContexts, setConstraints, setEndTime, setExecType, setLogicalValue, setStartTime, setStartTime, setStateMachine, setStatus, setTimeout, setupNextStep, startOverAllMonitor, toString, updatePerformanceModels, verifyReturnValue, waitForTermination, waitForTermination

Methods inherited from class java.lang.Object

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

Constructor Details

RecoveryGoalContext

public RecoveryGoalContext(Context caller,
 StateMachine sm,
 ParameterizedAction recoveryAction,
 ExecutionType executionType,
 GoalRecovery recovery)

Method Details

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

resetConcreteContext

protected void resetConcreteContext()

Description copied from class: Context

This resets fields specific to concrete sub-classes and should be overridden by inheriting classes if additional resetting needs to happen.

Overrides:

resetConcreteContext in class GoalContext

setStatus

public void setStatus(ActionStatus eStatus,
 Justification justification)

Overriding setStatus to "catch" failures when a recovery operation should take place, and also to convert un-caught failures to FAIL_RECOVERY so the parent goal context can handle recovery failures differently from regular goal/action failures. TODO: This method is synchronized to handle canceling. Is there a better way to handle this?

Overrides:

setStatus in class GoalContext

Parameters:

eStatus - the execution status of the currently running event

justification - the reason for the context's execution status

copy

public RecoveryGoalContext copy(Context newParent)

Make a copy of this node in the execution tree for simulation purposes

Overrides:

copy in class GoalContext

Parameters:

newParent - new parent context

Returns: