Package adams.flow.transformer

Class SequenceToArray

  • All Implemented Interfaces:
    AdditionalInformationHandler, ClassCrossReference, CleanUpHandler, CrossReference, Destroyable, GlobalInfoSupporter, LoggingLevelHandler, LoggingSupporter, OptionHandler, QuickInfoSupporter, ShallowCopySupporter<Actor>, SizeOfHandler, Stoppable, StoppableWithFeedback, VariablesInspectionHandler, VariableChangeListener, Actor, ErrorHandler, InputConsumer, OutputProducer, Serializable, Comparable
    public class SequenceToArray
extends AbstractTransformer
implements ClassCrossReference
    Turns a sequence of tokens into arrays with a specified length.
    In case of unspecified length (ie -1), an array containing all elements collected so far is output each time a token arrives, i.e., the internal buffer never gets reset.

    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: SequenceToArray
 
    -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
 
    -length <int> (property: arrayLength)
    The length of the output array; use -1 to output an array with all collected
    elements so far whenever a token arrives.
    default: 1
    minimum: -1
 
    -overlap <int> (property: overlap)
    The overlap of elements between arrays; e.g., sequence of 1,2,3,4 with length
    =2 and overlap=0 gets packaged in to (1,2),(3,4); with overlap=1, this changes
    to (1,2),(2,3),(3,4); array length option must be > 0.
    default: 0
    minimum: 0
 
    -array-class <adams.core.base.BaseClassname> (property: arrayClass)
    The class to use for the array; if none is specified, the class of the first 
    element is used.
    default:
    Author:
    fracpete (fracpete at waikato dot ac dot nz)
    See Also:
    Serialized Form

    • Field Detail

      • BACKUP_ELEMENTS

        public static final String BACKUP_ELEMENTS
        the key for storing the current elements in the backup.
        See Also:
        Constant Field Values

      • m_Elements

        protected List m_Elements
        the buffered elements of the array that still need to be broadcasted.

      • m_ArrayLength

        protected int m_ArrayLength
        the length of the arrays.

      • m_Overlap

        protected int m_Overlap
        the overlap in elements between arrays.

      • m_ArrayClass

        protected BaseClassname m_ArrayClass
        the class for the array.

    • Constructor Detail

      • SequenceToArray

        public SequenceToArray()

    • Method Detail

      • setArrayLength

        public void setArrayLength​(int value)
        Sets the length of the arrays.
        Parameters:
        value - the length

      • getArrayLength

        public int getArrayLength()
        Returns the length of the arrays.
        Returns:
        the length

      • arrayLengthTipText

        public String arrayLengthTipText()
        Returns the tip text for this property.
        Returns:
        tip text for this property suitable for displaying in the GUI or for listing the options.

      • setOverlap

        public void setOverlap​(int value)
        Sets the overlap of elements between arrays.
        Parameters:
        value - the overlap

      • getOverlap

        public int getOverlap()
        Returns the overlap of elements between arrays.
        Returns:
        the overlap

      • overlapTipText

        public String overlapTipText()
        Returns the tip text for this property.
        Returns:
        tip text for this property suitable for displaying in the GUI or for listing the options.

      • setArrayClass

        public void setArrayClass​(BaseClassname value)
        Sets the class for the array.
        Parameters:
        value - the classname, use empty string to use class of first element

      • getArrayClass

        public BaseClassname getArrayClass()
        Returns the class for the array.
        Returns:
        the classname, empty string if class of first element is used

      • arrayClassTipText

        public String arrayClassTipText()
        Returns the tip text for this property.
        Returns:
        tip text for this property suitable for displaying in the GUI or for listing the options.

      • reset

        protected void reset()
        Resets the scheme.
        Overrides:
        reset in class AbstractActor

      • accepts

        public Class[] accepts()
        Returns the class that the consumer accepts.
        Specified by:
        accepts in interface InputConsumer
        Returns:
        adams.flow.core.Unknown.class

      • generates

        public Class[] generates()
        Returns the class of objects that it generates.
        Specified by:
        generates in interface OutputProducer
        Returns:
        adams.flow.core.Unknown[].class

      • doExecute

        protected String doExecute()
        Executes the flow item.
        Specified by:
        doExecute in class AbstractActor
        Returns:
        null if everything is fine, otherwise error message