Package adams.flow.transformer

Class SequenceToCollection

  • 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 SequenceToCollection
extends AbstractTransformer
    Turns a sequence of tokens into a collection.
    In case of unspecified length (ie -1), a collection 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:
       java.util.ArrayList


    -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: SequenceToCollection
 
    -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 gets stopped in case this actor encounters an error;
     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
 
    -size <int> (property: collectionSize)
    The size of the collection(s).
    default: 1
    minimum: -1
 
    -overlap <int> (property: overlap)
    The overlap of elements between collections; 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); collection size option must be > 0.
    default: 0
    minimum: 0
 
    -collection-class <java.lang.String> (property: collectionClass)
    The class to use for the collection.
    default: java.util.ArrayList
    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 collection that still need to be broadcasted.

      • m_CollectionSize

        protected int m_CollectionSize
        the length of the collections.

      • m_Overlap

        protected int m_Overlap
        the overlap in elements between collections.

      • m_CollectionClass

        protected String m_CollectionClass
        the class for the collection.

    • Constructor Detail

      • SequenceToCollection

        public SequenceToCollection()

    • Method Detail

      • setCollectionSize

        public void setCollectionSize​(int value)
        Sets the size of the collection.
        Parameters:
        value - the size

      • getCollectionSize

        public int getCollectionSize()
        Returns the length of the collection.
        Returns:
        the size

      • collectionSizeTipText

        public String collectionSizeTipText()
        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 collections.
        Parameters:
        value - the overlap

      • getOverlap

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

      • setCollectionClass

        public void setCollectionClass​(String value)
        Sets the class for the collection.
        Parameters:
        value - the classname, use empty string to use class of first element

      • getCollectionClass

        public String getCollectionClass()
        Returns the class for the collection.
        Returns:
        the classname

      • collectionClassTipText

        public String collectionClassTipText()
        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.
        Returns:
        adams.flow.core.Unknown.class

      • generates

        public Class[] generates()
        Returns the class of objects that it generates.
        Returns:
        java.util.ArrayList.class

      • doExecute

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