Package adams.flow.core

Class AbstractCallableActor

java.lang.Object

adams.core.logging.LoggingObject

adams.core.logging.CustomLoggingLevelObject

adams.core.option.AbstractOptionHandler

adams.flow.core.AbstractActor

adams.flow.core.AbstractCallableActor

All Implemented Interfaces:

AdditionalInformationHandler, CleanUpHandler, Destroyable, GlobalInfoSupporter, LoggingLevelHandler, LoggingSupporter, OptionHandler, QuickInfoSupporter, ShallowCopySupporter<Actor>, SizeOfHandler, Stoppable, StoppableWithFeedback, VariablesInspectionHandler, VariableChangeListener, Actor, CallableActorUser, ErrorHandler, Serializable, Comparable

Direct Known Subclasses:

AbstractCallableDatabaseConnection, CallableSink, CallableSource, CallableTransformer, ClearCallableDisplay, CloseCallableDisplay, TriggerCallableStandalone

public abstract class AbstractCallableActor
extends AbstractActor
implements CallableActorUser

Abstract ancestor for all actors that access callable actors.

Version:

$Revision$

Author:

fracpete (fracpete at waikato dot ac dot nz)

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static String	BACKUP_CALLABLEACTOR	the key for backing up the callable actor.
static String	BACKUP_CONFIGURED	the key for backing up the configured state.
protected Actor	m_CallableActor	the callable actor.
protected CallableActorReference	m_CallableName	the callable name.
protected boolean	m_Configured	whether the callable actor has been configured.
protected String	m_FindCallableActorError	for storing any errors during findCallableActor().
protected CallableActorHelper	m_Helper	the helper class.
protected boolean	m_Optional	whether the callable actor is optional.

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
AbstractCallableActor()

Method Summary

Modifier and Type	Method	Description
protected Hashtable<String,Object>	backupState()	Backs up the current state of the actor before update the variables.
String	callableNameTipText()	Returns the tip text for this property.
void	cleanUp()	Cleans up after the execution has finished.
void	defineOptions()	Adds options to the internal list of options.
protected String	doExecute()	Executes the flow item.
protected abstract String	executeCallableActor()	Executes the callable actor.
protected Actor	findCallableActor()	Tries to find the callable actor referenced by its callable name.
Actor	getCallableActor()	Returns the currently set callable actor.
CallableActorReference	getCallableName()	Returns the name of the callable actor in use.
boolean	getOptional()	Returns whether the callable actor is optional.
String	getQuickInfo()	Returns a quick info about the actor, which will be displayed in the GUI.
boolean	hasCallableActor()	Checks whether a reference to the callable actor is currently available.
protected void	initialize()	Initializes the members.
boolean	isFinished()	Returns whether the actor has finished.
String	optionalTipText()	Returns the tip text for this property.
protected void	pruneBackup()	Removes entries from the backup.
protected void	reset()	Resets the scheme.
protected void	restoreState(Hashtable<String,Object> state)	Restores the state of the actor before the variables got updated.
void	setCallableName(CallableActorReference value)	Sets the name of the callable actor to use.
void	setOptional(boolean value)	Sets whether the callable actor is optional.
String	setUp()	Initializes the item for flow execution.
protected String	setUpCallableActor()	Configures the callable actor.
void	stopExecution()	Stops the execution.

Methods inherited from class adams.flow.core.AbstractActor

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

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

toCommandLine

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, getOptionManager

Field Detail

BACKUP_CALLABLEACTOR

public static final String BACKUP_CALLABLEACTOR

the key for backing up the callable actor.

See Also:

Constant Field Values

BACKUP_CONFIGURED

public static final String BACKUP_CONFIGURED

the key for backing up the configured state.

See Also:

Constant Field Values

m_CallableName

protected CallableActorReference m_CallableName

the callable name.

m_CallableActor

protected Actor m_CallableActor

the callable actor.

m_Configured

protected boolean m_Configured

whether the callable actor has been configured.

m_Helper

protected CallableActorHelper m_Helper

the helper class.

m_Optional

protected boolean m_Optional

whether the callable actor is optional.

m_FindCallableActorError

protected String m_FindCallableActorError

for storing any errors during findCallableActor().

Constructor Detail

AbstractCallableActor

public AbstractCallableActor()

Method Detail

defineOptions

public void defineOptions()

Adds options to the internal list of options.

Specified by:

defineOptions in interface OptionHandler

Overrides:

defineOptions in class AbstractActor

reset

protected void reset()

Resets the scheme.

Overrides:

reset in class AbstractActor

initialize

protected void initialize()

Initializes the members.

Overrides:

initialize in class AbstractActor

setCallableName

public void setCallableName(CallableActorReference value)

Sets the name of the callable actor to use.

Parameters:

value - the callable name

getCallableName

public CallableActorReference getCallableName()

Returns the name of the callable actor in use.

Returns:

the callable name

callableNameTipText

public String callableNameTipText()

Returns the tip text for this property.

Returns:

tip text for this property suitable for displaying in the GUI or for listing the options.

setOptional

public void setOptional(boolean value)

Sets whether the callable actor is optional.

Parameters:

value - true if optional

getOptional

public boolean getOptional()

Returns whether the callable actor is optional.

Returns:

true if optional

optionalTipText

public String optionalTipText()

Returns the tip text for this property.

Returns:

tip text for this property suitable for displaying in the GUI or for listing the options.

getQuickInfo

public String getQuickInfo()

Returns a quick info about the actor, which will be displayed in the GUI.

Specified by:

getQuickInfo in interface Actor

Specified by:

getQuickInfo in interface QuickInfoSupporter

Overrides:

getQuickInfo in class AbstractActor

Returns:

null if no info available, otherwise short string

findCallableActor

protected Actor findCallableActor()

Tries to find the callable actor referenced by its callable name.

Returns:

the callable actor or null if not found

hasCallableActor

public boolean hasCallableActor()

Checks whether a reference to the callable actor is currently available.

Returns:

true if a reference is available

See Also:

getCallableActor()

getCallableActor

public Actor getCallableActor()

Returns the currently set callable actor.

Specified by:

getCallableActor in interface CallableActorUser

Returns:

the actor, can be null

pruneBackup

protected void pruneBackup()

Removes entries from the backup.

Overrides:

pruneBackup in class AbstractActor

See Also:

AbstractActor.reset()

backupState

protected Hashtable<String,Object> backupState()

Backs up the current state of the actor before update the variables.

Overrides:

backupState in class AbstractActor

Returns:

the backup

See Also:

AbstractActor.updateVariables(), AbstractActor.restoreState(Hashtable)

restoreState

protected void restoreState(Hashtable<String,Object> state)

Restores the state of the actor before the variables got updated.

Overrides:

restoreState in class AbstractActor

Parameters:

state - the backup of the state to restore from

See Also:

AbstractActor.updateVariables(), AbstractActor.backupState()

setUpCallableActor

protected String setUpCallableActor()

Configures the callable actor.

Returns:

null if successful, otherwise error message

setUp

public String setUp()

Initializes the item 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()

executeCallableActor

protected abstract String executeCallableActor()

Executes the callable actor. Derived classes might need to override this method to ensure atomicity.

Returns:

null if no error, otherwise error message

doExecute

protected String doExecute()

Executes the flow item.

Specified by:

doExecute in class AbstractActor

Returns:

null if everything is fine, otherwise error message

isFinished

public boolean isFinished()

Returns whether the actor has finished.

Specified by:

isFinished in interface Actor

Overrides:

isFinished in class AbstractActor

Returns:

true if finished

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

cleanUp

public void cleanUp()

Cleans up after the execution has finished.

Specified by:

cleanUp in interface Actor

Specified by:

cleanUp in interface CleanUpHandler

Overrides:

cleanUp in class AbstractActor