Package adams.flow.control

Class AbstractControlActor

java.lang.Object

adams.core.logging.LoggingObject

adams.core.logging.CustomLoggingLevelObject

adams.core.option.AbstractOptionHandler

adams.flow.core.AbstractActor

adams.flow.control.AbstractControlActor

All Implemented Interfaces:

AdditionalInformationHandler, CleanUpHandler, Destroyable, GlobalInfoSupporter, LoggingLevelHandler, LoggingSupporter, OptionHandler, Pausable, QuickInfoSupporter, ShallowCopySupporter<Actor>, SizeOfHandler, Stoppable, StoppableWithFeedback, VariablesInspectionHandler, FlowPauseStateListener, VariableChangeListener, Actor, ActorHandler, ControlActor, ErrorHandler, Flushable, SubFlowWrapUp, Serializable, Comparable

Direct Known Subclasses:

AbstractDirectedControlActor, AbstractMutableStandaloneGroupItem, AbstractTee, Branch, Events, JavaExec, LoadBalancer, LocalScopeTransformer, TryCatch, UpdateProperties, WhileLoop

public abstract class AbstractControlActor
extends AbstractActor
implements ControlActor, ActorHandler, Pausable, FlowPauseStateListener, SubFlowWrapUp

Ancestor for all actors that control sub-actors in some way.

Author:

fracpete (fracpete at waikato dot ac dot nz)

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected Compatibility	m_Compatibility	the compatibility class in use.
protected PauseStateManager	m_PauseStateManager	the pause state manager.
protected boolean	m_SetUpSubActors	whether the sub-actors were set up.

Fields inherited from class adams.flow.core.AbstractActor

m_Annotations, m_BackupState, m_DetectedObjectVariables, m_DetectedVariables, m_ErrorHandler, m_Executed, m_Executing, m_ExecutionListeningSupporter, m_FullName, m_LoggingPrefix, m_Name, m_Parent, m_ScopeHandler, m_Self, m_Silent, m_Skip, m_StopFlowOnError, m_StopMessage, m_Stopped, m_StorageHandler, m_VariablesUpdated

Fields inherited from class adams.core.option.AbstractOptionHandler

m_OptionManager

Fields inherited from class adams.core.logging.LoggingObject

m_Logger, m_LoggingIsEnabled, m_LoggingLevel

Fields inherited from interface adams.flow.core.Actor

FILE_EXTENSION, FILE_EXTENSION_GZ

Constructor Summary

Constructors

Constructor	Description
AbstractControlActor()

Method Summary

Modifier and Type	Method	Description
int	active()	Returns the number of non-skipped actors.
boolean	canInspectOptions(Class cls)	Checks whether the class' options can be inspected.
String	check()	Performs checks on the "sub-actors".
void	cleanUp()	Cleans up after the execution has finished.
void	destroy()	Frees up memory in a "destructive" non-reversible way.
Actor	firstActive()	Returns the first non-skipped actor.
Actor	firstInputConsumer()	Returns the first non-skipped InputConsumer.
void	flowPauseStateChanged(FlowPauseStateEvent e)	Gets called when the pause state of the flow changes.
void	flushExecution()	Stops the processing of tokens without stopping the flow.
protected void	forceVariables(Variables value)	Updates the Variables instance in use.
abstract Actor	get(int index)	Returns the actor at the given position.
abstract ActorHandlerInfo	getActorHandlerInfo()	Returns some information about the actor handler, e.g., whether it can contain standalones and the actor execution.
abstract int	indexOf(String actor)	Returns the index of the actor.
protected void	initialize()	Initializes the members.
boolean	isPaused()	Returns whether the object is currently paused.
boolean	isSubFlowWrappedUp()	Checks whether the sub-flow has been wrapped up.
Actor	lastActive()	Returns the last non-skipped actor.
void	pauseExecution()	Pauses the execution.
protected String	preExecute()	Pre-execute hook.
protected void	reset()	Resets the actor.
void	resumeExecution()	Resumes the execution.
abstract String	set(int index, Actor actor)	Sets the actor at the given position.
void	setParent(Actor value)	Sets the parent of this actor, e.g., the group it belongs to.
String	setUp()	Initializes the sub-actors for flow execution.
protected String	setUpSubActors()	Performs the setUp of the sub-actors.
abstract int	size()	Returns the size of the group.
void	stopExecution()	Stops the execution.
protected void	updateParent()	Updates the parent of all actors in this group.
void	wrapUp()	Finishes up the execution.
void	wrapUpSubFlow()	Wraps up the sub-actors, freeing up memory.

Methods inherited from class adams.flow.core.AbstractActor

annotationsTipText, backupState, canPerformSetUpCheck, compareTo, configureLogger, defineOptions, doExecute, equals, execute, finalUpdateVariables, findVariables, findVariables, forCommandLine, forName, forName, getAdditionalInformation, getAnnotations, getDefaultName, getDetectedVariables, getErrorHandler, getFlowActors, getFlowExecutionListeningSupporter, getFullName, getName, getNextSibling, getParent, getParentComponent, getPreviousSibling, getQuickInfo, getRoot, getScopeHandler, getSilent, getSkip, getStopFlowOnError, getStopMessage, getStorageHandler, getVariables, handleError, handleException, hasErrorHandler, hasStopMessage, index, isBackedUp, isExecuted, isExecuting, isFinished, isHeadless, isStopped, nameTipText, performSetUpChecks, performVariableChecks, postExecute, pruneBackup, pruneBackup, restoreState, setAnnotations, setErrorHandler, setName, setSilent, setSkip, setStopFlowOnError, setVariables, shallowCopy, shallowCopy, silentTipText, sizeOf, skipTipText, stopExecution, stopFlowOnErrorTipText, updateDetectedVariables, updatePrefix, updateVariables, variableChanged

Methods inherited from class adams.core.option.AbstractOptionHandler

cleanUpOptions, finishInit, getDefaultLoggingLevel, getOptionManager, globalInfo, loggingLevelTipText, newOptionManager, setLoggingLevel, toCommandLine, toString

Methods inherited from class adams.core.logging.LoggingObject

getLogger, getLoggingLevel, initializeLogging, isLoggingEnabled

Methods inherited from class java.lang.Object

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

Methods inherited from interface adams.flow.core.Actor

compareTo, equals, execute, findVariables, getAnnotations, getDefaultName, getDetectedVariables, getErrorHandler, getFlowExecutionListeningSupporter, getFullName, getName, getNextSibling, getParent, getParentComponent, getPreviousSibling, getQuickInfo, getRoot, getScopeHandler, getSilent, getSkip, getStopFlowOnError, getStopMessage, getStorageHandler, getVariables, handleError, hasErrorHandler, hasStopMessage, index, isExecuted, isFinished, isHeadless, isStopped, setAnnotations, setErrorHandler, setName, setSilent, setSkip, setStopFlowOnError, setVariables, shallowCopy, shallowCopy, sizeOf, stopExecution, toCommandLine, variableChanged

Methods inherited from interface adams.core.AdditionalInformationHandler

getAdditionalInformation

Methods inherited from interface adams.core.logging.LoggingLevelHandler

getLoggingLevel, setLoggingLevel

Methods inherited from interface adams.core.logging.LoggingSupporter

getLogger, isLoggingEnabled

Methods inherited from interface adams.core.option.OptionHandler

cleanUpOptions, defineOptions, getOptionManager

Field Detail

m_Compatibility

protected Compatibility m_Compatibility

the compatibility class in use.

m_PauseStateManager

protected PauseStateManager m_PauseStateManager

the pause state manager.

m_SetUpSubActors

protected boolean m_SetUpSubActors

whether the sub-actors were set up.

Constructor Detail

AbstractControlActor

public AbstractControlActor()

Method Detail

initialize

protected void initialize()

Initializes the members.

Overrides:

initialize in class AbstractActor

reset

protected void reset()

Resets the actor.

Overrides:

reset in class AbstractActor

setParent

public void setParent(Actor value)

Sets the parent of this actor, e.g., the group it belongs to.

Specified by:

setParent in interface Actor

Overrides:

setParent in class AbstractActor

Parameters:

value - the new parent

forceVariables

protected void forceVariables(Variables value)

Updates the Variables instance in use.

Use with caution!

Overrides:

forceVariables in class AbstractActor

Parameters:

value - the instance to use

getActorHandlerInfo

public abstract ActorHandlerInfo getActorHandlerInfo()

Returns some information about the actor handler, e.g., whether it can contain standalones and the actor execution.

Specified by:

getActorHandlerInfo in interface ActorHandler

Returns:

the info

size

public abstract int size()

Returns the size of the group.

Specified by:

size in interface ActorHandler

Returns:

the size

active

public int active()

Returns the number of non-skipped actors.

Returns:

the 'active' actors

firstActive

public Actor firstActive()

Returns the first non-skipped actor.

Specified by:

firstActive in interface ActorHandler

Returns:

the first 'active' actor, null if none available

lastActive

public Actor lastActive()

Returns the last non-skipped actor.

Specified by:

lastActive in interface ActorHandler

Returns:

the last 'active' actor, null if none available

firstInputConsumer

public Actor firstInputConsumer()

Returns the first non-skipped InputConsumer.

Returns:

the first 'active' InputConsumer, null if none available

get

public abstract Actor get(int index)

Returns the actor at the given position.

Specified by:

get in interface ActorHandler

Parameters:

index - the position

Returns:

the actor

set

public abstract String set(int index,
                           Actor actor)

Sets the actor at the given position.

Specified by:

set in interface ActorHandler

Parameters:

index - the position

actor - the actor to set at this position

Returns:

null if successful, otherwise error message

indexOf

public abstract int indexOf(String actor)

Returns the index of the actor.

Specified by:

indexOf in interface ActorHandler

Parameters:

actor - the name of the actor to look for

Returns:

the index of -1 if not found

updateParent

protected void updateParent()

Updates the parent of all actors in this group.

canInspectOptions

public boolean canInspectOptions(Class cls)

Checks whether the class' options can be inspected. By default, arrays of actors (i.e., the control actor's sub-actors) won't be inspected, as they do it themselves.

Specified by:

canInspectOptions in interface VariablesInspectionHandler

Overrides:

canInspectOptions in class AbstractActor

Parameters:

cls - the class to check

Returns:

true if it can be inspected, false otherwise

setUpSubActors

protected String setUpSubActors()

Performs the setUp of the sub-actors.

Returns:

null if everything is fine, otherwise error message

setUp

public String setUp()

Initializes the sub-actors for flow execution.

Specified by:

setUp in interface Actor

Overrides:

setUp in class AbstractActor

Returns:

null if everything is fine, otherwise error message

See Also:

AbstractActor.reset()

check

public String check()

Performs checks on the "sub-actors". Default implementation does nothing.

Specified by:

check in interface ActorHandler

Returns:

null

preExecute

protected String preExecute()

Pre-execute hook.

Attempts to setUp actor again, if it was wrapped up before.

Overrides:

preExecute in class AbstractActor

Returns:

null if everything is fine, otherwise error message

See Also:

SubFlowWrapUp.wrapUpSubFlow()

flushExecution

public void flushExecution()

Stops the processing of tokens without stopping the flow.

Specified by:

flushExecution in interface ActorHandler

Specified by:

flushExecution in interface Flushable

wrapUp

public void wrapUp()

Finishes up the execution.

Specified by:

wrapUp in interface Actor

Overrides:

wrapUp in class AbstractActor

cleanUp

public void cleanUp()

Cleans up after the execution has finished. Also removes graphical components.

Specified by:

cleanUp in interface Actor

Specified by:

cleanUp in interface CleanUpHandler

Overrides:

cleanUp in class AbstractActor

destroy

public void destroy()

Frees up memory in a "destructive" non-reversible way.

Cleans up the options and calls the destroy() method of all sub-actors.

Specified by:

destroy in interface Actor

Specified by:

destroy in interface Destroyable

Overrides:

destroy in class AbstractActor

See Also:

AbstractOptionHandler.cleanUpOptions()

pauseExecution

public void pauseExecution()

Pauses the execution.

Specified by:

pauseExecution in interface Pausable

isPaused

public boolean isPaused()

Returns whether the object is currently paused.

Specified by:

isPaused in interface Pausable

Returns:

true if object is paused

resumeExecution

public void resumeExecution()

Resumes the execution.

Specified by:

resumeExecution in interface Pausable

stopExecution

public void stopExecution()

Stops the execution. No message set.

Specified by:

stopExecution in interface Actor

Specified by:

stopExecution in interface Stoppable

Overrides:

stopExecution in class AbstractActor

flowPauseStateChanged

public void flowPauseStateChanged(FlowPauseStateEvent e)

Gets called when the pause state of the flow changes.

Default implementation does nothing.

Specified by:

flowPauseStateChanged in interface FlowPauseStateListener

Parameters:

e - the event

wrapUpSubFlow

public void wrapUpSubFlow()

Wraps up the sub-actors, freeing up memory.

Specified by:

wrapUpSubFlow in interface SubFlowWrapUp

isSubFlowWrappedUp

public boolean isSubFlowWrappedUp()

Checks whether the sub-flow has been wrapped up.

Specified by:

isSubFlowWrappedUp in interface SubFlowWrapUp

Returns:

true if sub-flow was wrapped up