Package adams.flow.sink

Class EnQueue

java.lang.Object

adams.core.logging.LoggingObject

adams.core.logging.CustomLoggingLevelObject

adams.core.option.AbstractOptionHandler

adams.flow.core.AbstractActor

adams.flow.sink.AbstractSink

adams.flow.sink.EnQueue

All Implemented Interfaces:

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

public class EnQueue
extends AbstractSink
implements StorageUpdater

Enqueues the incoming data in the specified queue in internal storage.

Input/output:
- accepts:
adams.flow.core.Unknown

-logging-level <OFF|SEVERE|WARNING|INFO|CONFIG|FINE|FINER|FINEST> (property: loggingLevel)
    The logging level for outputting errors and debugging output.
    default: WARNING
 

-name <java.lang.String> (property: name)
    The name of the actor.
    default: EnQueue
 

-annotation <adams.core.base.BaseText> (property: annotations)
    The annotations to attach to this actor.
    default: 
 

-skip <boolean> (property: skip)
    If set to true, transformation is skipped and the input token is just forwarded 
    as it is.
    default: false
 

-stop-flow-on-error <boolean> (property: stopFlowOnError)
    If set to true, the flow gets stopped in case this actor encounters an error;
     useful for critical actors.
    default: false
 

-storage-name <adams.flow.control.StorageName> (property: storageName)
    The name of the queue in the internal storage.
    default: queue
 

Author:

fracpete (fracpete at waikato dot ac dot nz)

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected long	m_RetrievalDelay	the retrieval delay in msecs.
protected StorageName	m_StorageName	the name of the queue in the internal storage.

Fields inherited from class adams.flow.sink.AbstractSink

BACKUP_INPUT, m_InputToken

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
EnQueue()	Default constructor.
EnQueue(StorageName storageName)	Initializes with the specified storage name.
EnQueue(String storageName)	Initializes with the specified storage name.

Method Summary

Modifier and Type	Method	Description
Class[]	accepts()	Returns the class that the consumer accepts.
void	defineOptions()	Adds options to the internal list of options.
protected String	doExecute()	Executes the flow item.
String	getQuickInfo()	Returns a quick info about the actor, which will be displayed in the GUI.
long	getRetrievalDelay()	Returns the delay to enforce on the retrieval of objects from the queue.
StorageName	getStorageName()	Returns the name for the queue in the internal storage.
String	globalInfo()	Returns a string describing the object.
void	input(Token token)	Adds the payload to the queue in internal storage.
boolean	isUpdatingStorage()	Returns whether storage items are being updated.
String	retrievalDelayTipText()	Returns the tip text for this property.
void	setRetrievalDelay(long value)	Sets the delay to enforce on the retrieval of objects from the queue.
void	setStorageName(StorageName value)	Sets the name for the queue in the internal storage.
void	setStorageName(String value)	Sets the name for the queue in the internal storage.
String	storageNameTipText()	Returns the tip text for this property.

Methods inherited from class adams.flow.sink.AbstractSink

backupState, currentInput, hasInput, postExecute, restoreState, wrapUp

Methods inherited from class adams.flow.core.AbstractActor

annotationsTipText, canInspectOptions, canPerformSetUpCheck, cleanUp, 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, initialize, isBackedUp, isExecuted, isExecuting, isFinished, isHeadless, isStopped, nameTipText, performSetUpChecks, performVariableChecks, preExecute, pruneBackup, pruneBackup, reset, setAnnotations, setErrorHandler, setName, setParent, setSilent, setSkip, setStopFlowOnError, setUp, setVariables, shallowCopy, shallowCopy, silentTipText, sizeOf, skipTipText, stopExecution, stopExecution, stopFlowOnErrorTipText, updateDetectedVariables, updatePrefix, updateVariables, variableChanged

Methods inherited from class adams.core.option.AbstractOptionHandler

cleanUpOptions, finishInit, getDefaultLoggingLevel, getOptionManager, 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

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

Methods inherited from interface adams.core.VariablesInspectionHandler

canInspectOptions

Field Detail

m_StorageName

protected StorageName m_StorageName

the name of the queue in the internal storage.

m_RetrievalDelay

protected long m_RetrievalDelay

the retrieval delay in msecs.

Constructor Detail

EnQueue

public EnQueue()

Default constructor.

EnQueue

public EnQueue(StorageName storageName)

Initializes with the specified storage name.

Parameters:

storageName - the name to use

EnQueue

public EnQueue(String storageName)

Initializes with the specified storage name.

Parameters:

storageName - the name to use

Method Detail

globalInfo

public String globalInfo()

Returns a string describing the object.

Specified by:

globalInfo in interface GlobalInfoSupporter

Specified by:

globalInfo in class AbstractOptionHandler

Returns:

a description suitable for displaying in the gui

defineOptions

public void defineOptions()

Adds options to the internal list of options.

Specified by:

defineOptions in interface OptionHandler

Overrides:

defineOptions in class AbstractActor

isUpdatingStorage

public boolean isUpdatingStorage()

Returns whether storage items are being updated.

Specified by:

isUpdatingStorage in interface StorageUpdater

Returns:

true if storage items are updated

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

setStorageName

public void setStorageName(String value)

Sets the name for the queue in the internal storage.

Parameters:

value - the name

setStorageName

public void setStorageName(StorageName value)

Sets the name for the queue in the internal storage.

Parameters:

value - the name

getStorageName

public StorageName getStorageName()

Returns the name for the queue in the internal storage.

Returns:

the name

storageNameTipText

public String storageNameTipText()

Returns the tip text for this property.

Returns:

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

setRetrievalDelay

public void setRetrievalDelay(long value)

Sets the delay to enforce on the retrieval of objects from the queue.

Parameters:

value - the delay

getRetrievalDelay

public long getRetrievalDelay()

Returns the delay to enforce on the retrieval of objects from the queue.

Returns:

the delay

retrievalDelayTipText

public String retrievalDelayTipText()

Returns the tip text for this property.

Returns:

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

accepts

public Class[] accepts()

Returns the class that the consumer accepts.

Specified by:

accepts in interface InputConsumer

Returns:

adams.flow.core.Unknown.class

input

public void input(Token token)

Adds the payload to the queue in internal storage.

Specified by:

input in interface InputConsumer

Overrides:

input in class AbstractSink

Parameters:

token - the token which data to add

See Also:

AbstractSink.m_InputToken

doExecute

protected String doExecute()

Executes the flow item.

Specified by:

doExecute in class AbstractActor

Returns:

null if everything is fine, otherwise error message