Package adams.flow.transformer
Class ArrayToChunks
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- All Implemented Interfaces:
AdditionalInformationHandler
,CleanUpHandler
,Destroyable
,GlobalInfoSupporter
,LoggingLevelHandler
,LoggingSupporter
,OptionHandler
,QuickInfoSupporter
,ShallowCopySupporter<Actor>
,SizeOfHandler
,Stoppable
,StoppableWithFeedback
,VariablesInspectionHandler
,VariableChangeListener
,Actor
,ErrorHandler
,InputConsumer
,OutputProducer
,Serializable
,Comparable
public class ArrayToChunks extends AbstractTransformer
Splits an array into chunks of a specified size. The last chunk will contain the remainder of the array.
Input/output:
- accepts:
adams.flow.core.Unknown[]
- generates:
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: ArrayToChunks
-annotation <adams.core.base.BaseAnnotation> (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 execution at this level gets stopped in case this actor encounters an error; the error gets propagated; useful for critical actors. default: false
-silent <boolean> (property: silent) If enabled, then no errors are output in the console; Note: the enclosing actor handler must have this enabled as well. default: false
-chunk-size <int> (property: chunkSize) The size of the chunks to generate. default: 1 minimum: 1
- Author:
- FracPete (fracpete at waikato dot ac dot nz)
- See Also:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description static String
BACKUP_ARRAY
the key for storing the current array in the backup.static String
BACKUP_INDEX
the key for storing the current index in the backup.protected int
m_ChunkSize
the chunk size to split the array into.protected Object
m_CurrentArray
the current array to work on.protected int
m_CurrentIndex
the current index in the array.-
Fields inherited from class adams.flow.transformer.AbstractTransformer
BACKUP_INPUT, BACKUP_OUTPUT, m_InputToken, m_OutputToken
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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
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Fields inherited from class adams.core.option.AbstractOptionHandler
m_OptionManager
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Fields inherited from class adams.core.logging.LoggingObject
m_Logger, m_LoggingIsEnabled, m_LoggingLevel
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Fields inherited from interface adams.flow.core.Actor
FILE_EXTENSION, FILE_EXTENSION_GZ
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Constructor Summary
Constructors Constructor Description ArrayToChunks()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Class[]
accepts()
Returns the class that the consumer accepts.protected Hashtable<String,Object>
backupState()
Backs up the current state of the actor before update the variables.String
chunkSizeTipText()
Returns the tip text for this property.void
defineOptions()
Adds options to the internal list of options.protected String
doExecute()
Executes the flow item.Class[]
generates()
Returns the class of objects that it generates.int
getChunkSize()
Returns the size of the chunks to generate.String
getQuickInfo()
Returns a quick info about the actor, which will be displayed in the GUI.String
globalInfo()
Returns a string describing the object.boolean
hasPendingOutput()
Checks whether there is pending output to be collected after executing the flow item.Token
output()
Returns the generated token.protected void
pruneBackup()
Removes entries from the backup.protected void
restoreState(Hashtable<String,Object> state)
Restores the state of the actor before the variables got updated.void
setChunkSize(int value)
Sets the size of the chunks to generate.-
Methods inherited from class adams.flow.transformer.AbstractTransformer
currentInput, execute, hasInput, input, postExecute, wrapUp
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Methods inherited from class adams.flow.core.AbstractActor
annotationsTipText, canInspectOptions, canPerformSetUpCheck, cleanUp, compareTo, configureLogger, destroy, equals, 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, reset, setAnnotations, setErrorHandler, setName, setParent, setSilent, setSkip, setStopFlowOnError, setUp, setVariables, shallowCopy, shallowCopy, silentTipText, sizeOf, skipTipText, stopExecution, stopExecution, stopFlowOnErrorTipText, updateDetectedVariables, updatePrefix, updateVariables, variableChanged
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Methods inherited from class adams.core.option.AbstractOptionHandler
cleanUpOptions, finishInit, getDefaultLoggingLevel, getOptionManager, loggingLevelTipText, newOptionManager, setLoggingLevel, toCommandLine, toString
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Methods inherited from class adams.core.logging.LoggingObject
getLogger, getLoggingLevel, initializeLogging, isLoggingEnabled
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Methods inherited from class java.lang.Object
clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
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Methods inherited from interface adams.flow.core.Actor
cleanUp, compareTo, destroy, equals, 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
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Methods inherited from interface adams.core.AdditionalInformationHandler
getAdditionalInformation
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Methods inherited from interface adams.core.logging.LoggingLevelHandler
getLoggingLevel, setLoggingLevel
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Methods inherited from interface adams.core.logging.LoggingSupporter
getLogger, isLoggingEnabled
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Methods inherited from interface adams.core.option.OptionHandler
cleanUpOptions, getOptionManager
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Methods inherited from interface adams.core.VariablesInspectionHandler
canInspectOptions
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Field Detail
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BACKUP_ARRAY
public static final String BACKUP_ARRAY
the key for storing the current array in the backup.- See Also:
- Constant Field Values
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BACKUP_INDEX
public static final String BACKUP_INDEX
the key for storing the current index in the backup.- See Also:
- Constant Field Values
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m_ChunkSize
protected int m_ChunkSize
the chunk size to split the array into.
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m_CurrentArray
protected Object m_CurrentArray
the current array to work on.
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m_CurrentIndex
protected int m_CurrentIndex
the current index in the array.
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Method Detail
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globalInfo
public String globalInfo()
Returns a string describing the object.- Specified by:
globalInfo
in interfaceGlobalInfoSupporter
- Specified by:
globalInfo
in classAbstractOptionHandler
- Returns:
- a description suitable for displaying in the gui
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defineOptions
public void defineOptions()
Adds options to the internal list of options.- Specified by:
defineOptions
in interfaceOptionHandler
- Overrides:
defineOptions
in classAbstractActor
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setChunkSize
public void setChunkSize(int value)
Sets the size of the chunks to generate.- Parameters:
value
- the size
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getChunkSize
public int getChunkSize()
Returns the size of the chunks to generate.- Returns:
- the size
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chunkSizeTipText
public String chunkSizeTipText()
Returns the tip text for this property.- Returns:
- tip text for this property suitable for displaying in the GUI or for listing the options.
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accepts
public Class[] accepts()
Returns the class that the consumer accepts.- Returns:
- the Class of objects that can be processed
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generates
public Class[] generates()
Returns the class of objects that it generates.- Returns:
- the Class of the generated tokens
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pruneBackup
protected void pruneBackup()
Removes entries from the backup.- Overrides:
pruneBackup
in classAbstractActor
- See Also:
AbstractActor.reset()
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backupState
protected Hashtable<String,Object> backupState()
Backs up the current state of the actor before update the variables.- Overrides:
backupState
in classAbstractTransformer
- Returns:
- the backup
- See Also:
AbstractActor.updateVariables()
,AbstractActor.restoreState(Hashtable)
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restoreState
protected void restoreState(Hashtable<String,Object> state)
Restores the state of the actor before the variables got updated.- Overrides:
restoreState
in classAbstractTransformer
- Parameters:
state
- the backup of the state to restore from- See Also:
AbstractActor.updateVariables()
,AbstractActor.backupState()
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getQuickInfo
public String getQuickInfo()
Returns a quick info about the actor, which will be displayed in the GUI.- Specified by:
getQuickInfo
in interfaceActor
- Specified by:
getQuickInfo
in interfaceQuickInfoSupporter
- Overrides:
getQuickInfo
in classAbstractActor
- Returns:
- null if no info available, otherwise short string
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doExecute
protected String doExecute()
Executes the flow item.- Specified by:
doExecute
in classAbstractActor
- Returns:
- null if everything is fine, otherwise error message
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hasPendingOutput
public boolean hasPendingOutput()
Checks whether there is pending output to be collected after executing the flow item.- Specified by:
hasPendingOutput
in interfaceOutputProducer
- Overrides:
hasPendingOutput
in classAbstractTransformer
- Returns:
- true if there is pending output
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output
public Token output()
Returns the generated token.- Specified by:
output
in interfaceOutputProducer
- Overrides:
output
in classAbstractTransformer
- Returns:
- the generated token
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