ptolemy.actor.lib.comm
Class HuffmanDecoder
java.lang.Object
ptolemy.kernel.util.NamedObj
ptolemy.kernel.InstantiableNamedObj
ptolemy.kernel.Entity
ptolemy.kernel.ComponentEntity
ptolemy.actor.AtomicActor
ptolemy.actor.TypedAtomicActor
ptolemy.actor.lib.Transformer
ptolemy.actor.lib.comm.HuffmanBasic
ptolemy.actor.lib.comm.HuffmanDecoder
- All Implemented Interfaces:
- java.io.Serializable, java.lang.Cloneable, Actor, Executable, FiringsRecordable, Initializable, TypedActor, Changeable, Debuggable, DebugListener, Derivable, Instantiable, ModelErrorHandler, MoMLExportable, Moveable, Nameable
public class HuffmanDecoder
- extends HuffmanBasic
Given a probability distribution and the corresponding alphabet,
decode the input using Huffman code and send the result to the output
port. Its base class HuffmanBasic generates the code book.
The decoder simply decode the input according to this code book.
- Since:
- Ptolemy II 4.1
- Version:
- $Id: HuffmanDecoder.java 57040 2010-01-27 20:52:32Z cxh $
- Author:
- Ye Zhou
- See Also:
HuffmanBasic
,
HuffmanCoder
,
Serialized Form
- Accepted Rating:
- Proposed Rating:
Field Summary |
private java.lang.String |
_code
|
Fields inherited from class ptolemy.kernel.util.NamedObj |
_changeListeners, _changeLock, _changeRequests, _debugging, _debugListeners, _elementName, _isPersistent, _verbose, _workspace, ATTRIBUTES, CLASSNAME, COMPLETE, CONTENTS, DEEP, FULLNAME, LINKS |
Method Summary |
java.lang.Object |
clone(Workspace workspace)
Clone the actor into the specified workspace. |
void |
fire()
Generate the Huffman codebook for the given pmf, and
encode the input into booleans and send them to the output port. |
void |
initialize()
Initialize the actor. set the current input string to be empty. |
Methods inherited from class ptolemy.actor.AtomicActor |
_actorFiring, _actorFiring, addActorFiringListener, addInitializable, connectionsChanged, createReceivers, declareDelayDependency, getCausalityInterface, getDirector, getExecutiveDirector, getManager, inputPortList, isFireFunctional, isStrict, iterate, newReceiver, outputPortList, postfire, prefire, preinitialize, pruneDependencies, recordFiring, removeActorFiringListener, removeDependency, removeInitializable, setContainer, stop, stopFire, terminate, wrapup |
Methods inherited from class ptolemy.kernel.ComponentEntity |
_adjustDeferrals, _checkContainer, _getContainedObject, _propagateExistence, getContainer, instantiate, isAtomic, isOpaque, moveDown, moveToFirst, moveToIndex, moveToLast, moveUp, propagateExistence, setName |
Methods inherited from class ptolemy.kernel.Entity |
_description, _exportMoMLContents, _removePort, _validateSettables, connectedPortList, connectedPorts, containedObjectsIterator, getAttribute, getPort, getPorts, linkedRelationList, linkedRelations, portList, removeAllPorts, setClassDefinition, uniqueName |
Methods inherited from class ptolemy.kernel.util.NamedObj |
_addAttribute, _adjustOverride, _attachText, _cloneFixAttributeFields, _debug, _debug, _debug, _debug, _debug, _getIndentPrefix, _isMoMLSuppressed, _markContentsDerived, _propagateValue, _recordDecoratedAttributes, _removeAttribute, _splitName, _stripNumericSuffix, addChangeListener, addDebugListener, attributeList, attributeList, deepContains, depthInHierarchy, description, description, event, executeChangeRequests, exportMoML, exportMoML, exportMoML, exportMoML, exportMoMLPlain, getAttribute, getAttributes, getChangeListeners, getClassName, getDecoratorAttribute, getDecoratorAttributes, getDerivedLevel, getDerivedList, getDisplayName, getFullName, getModelErrorHandler, getName, getName, getSource, handleModelError, isDeferringChangeRequests, isOverridden, isPersistent, lazyContainedObjectsIterator, message, propagateValue, propagateValues, removeChangeListener, removeDebugListener, requestChange, setClassName, setDeferringChangeRequests, setDerivedLevel, setDisplayName, setModelErrorHandler, setPersistent, setSource, sortContainedObjects, toplevel, toString, validateSettables, workspace |
Methods inherited from class java.lang.Object |
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
_code
private java.lang.String _code
HuffmanDecoder
public HuffmanDecoder(CompositeEntity container,
java.lang.String name)
throws NameDuplicationException,
IllegalActionException
- Construct an actor with the given container and name.
The output and trigger ports are also constructed.
- Parameters:
container
- The container.name
- The name of this actor.
- Throws:
IllegalActionException
- If the entity cannot be contained
by the proposed container.
NameDuplicationException
- If the container already has an
actor with this name.
clone
public java.lang.Object clone(Workspace workspace)
throws java.lang.CloneNotSupportedException
- Clone the actor into the specified workspace. This calls the
base class and then creates new ports and parameters.
- Overrides:
clone
in class HuffmanBasic
- Parameters:
workspace
- The workspace for the new object.
- Returns:
- A new actor.
- Throws:
java.lang.CloneNotSupportedException
- If a derived class contains
an attribute that cannot be cloned.- See Also:
NamedObj.exportMoML(Writer, int, String)
,
NamedObj.setDeferringChangeRequests(boolean)
fire
public void fire()
throws IllegalActionException
- Generate the Huffman codebook for the given pmf, and
encode the input into booleans and send them to the output port.
- Specified by:
fire
in interface Executable
- Overrides:
fire
in class HuffmanBasic
- Throws:
IllegalActionException
- If the input is not a decodable code.
initialize
public void initialize()
throws IllegalActionException
- Initialize the actor. set the current input string to be empty.
- Specified by:
initialize
in interface Initializable
- Overrides:
initialize
in class HuffmanBasic
- Throws:
IllegalActionException
- If the parent class throws it.