public class URLToImage extends Transformer
An actor that reads a String input token naming a URL and outputs an Object Token that contains a java.awt.Image
It is possible to load a file from the local file system by using the prefix "file://" instead of "http://". Relative file paths are allowed. To specify a file relative to the current directory, use "../" or "./". For example, if the current directory contains a file called "test.jpg", then sourceURL should be set to "file:./test.jpg". If the parent directory contains a file called "test.jpg", then sourceURL should be set to "file:../test.jpg". To reference the file test.jpg, located at "/tmp/test.jpg", sourceURL should be set to "file:///tmp/test.jpg" The default value is "file:///tmp/test.jpg".
ImageReader
Entity.ContainedObjectsIterator
input, output
_typesValid
_actorFiringListeners, _initializables, _notifyingActorFiring, _stopRequested
_changeListeners, _changeLock, _changeRequests, _debugging, _debugListeners, _deferChangeRequests, _elementName, _isPersistent, _verbose, _workspace, ATTRIBUTES, CLASSNAME, COMPLETE, CONTENTS, DEEP, FULLNAME, LINKS
COMPLETED, NOT_READY, STOP_ITERATING
Constructor and Description |
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URLToImage(CompositeEntity container,
java.lang.String name)
Construct an actor with the given container and name.
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Modifier and Type | Method and Description |
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void |
fire()
Read on StringToken from the input, and output an ObjectToken
that contains a java.awt.Image object to the output port.
|
boolean |
prefire()
Return false if the input port has no token, otherwise return
what the superclass returns (presumably true).
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_containedTypeConstraints, _customTypeConstraints, _defaultTypeConstraints, _fireAt, _fireAt, attributeTypeChanged, clone, clone, isBackwardTypeInferenceEnabled, newPort, typeConstraintList, typeConstraints
_actorFiring, _actorFiring, _declareDelayDependency, addActorFiringListener, addInitializable, connectionsChanged, createReceivers, declareDelayDependency, getCausalityInterface, getDirector, getExecutiveDirector, getManager, initialize, inputPortList, isFireFunctional, isStrict, iterate, newReceiver, outputPortList, postfire, preinitialize, pruneDependencies, recordFiring, removeActorFiringListener, removeDependency, removeInitializable, setContainer, stop, stopFire, terminate, wrapup
_adjustDeferrals, _checkContainer, _getContainedObject, _propagateExistence, getContainer, instantiate, isAtomic, isOpaque, moveDown, moveToFirst, moveToIndex, moveToLast, moveUp, propagateExistence, setName
_addPort, _description, _exportMoMLContents, _removePort, _validateSettables, connectedPortList, connectedPorts, containedObjectsIterator, getAttribute, getPort, getPorts, linkedRelationList, linkedRelations, portList, removeAllPorts, setClassDefinition, uniqueName
_setParent, exportMoML, getChildren, getElementName, getParent, getPrototypeList, isClassDefinition, isWithinClassDefinition
_addAttribute, _adjustOverride, _attachText, _cloneFixAttributeFields, _containedDecorators, _copyChangeRequestList, _debug, _debug, _debug, _debug, _debug, _executeChangeRequests, _getIndentPrefix, _isMoMLSuppressed, _markContentsDerived, _notifyHierarchyListenersAfterChange, _notifyHierarchyListenersBeforeChange, _propagateValue, _removeAttribute, _splitName, _stripNumericSuffix, addChangeListener, addDebugListener, addHierarchyListener, attributeChanged, attributeDeleted, attributeList, attributeList, decorators, 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, notifyOfNameChange, propagateValue, propagateValues, removeAttribute, removeChangeListener, removeDebugListener, removeHierarchyListener, requestChange, setClassName, setDeferringChangeRequests, setDerivedLevel, setDisplayName, setModelErrorHandler, setPersistent, setSource, sortContainedObjects, toplevel, toString, validateSettables, workspace
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
createReceivers, getCausalityInterface, getDirector, getExecutiveDirector, getManager, inputPortList, newReceiver, outputPortList
isFireFunctional, isStrict, iterate, postfire, stop, stopFire, terminate
addInitializable, initialize, preinitialize, removeInitializable, wrapup
description, getContainer, getDisplayName, getFullName, getName, getName, setName
getDerivedLevel, getDerivedList, propagateValue
public URLToImage(CompositeEntity container, java.lang.String name) throws IllegalActionException, NameDuplicationException
container
- The container.name
- The name of this actor.IllegalActionException
- If the actor cannot be contained
by the proposed container.NameDuplicationException
- If the container already has an
actor with this name.public void fire() throws IllegalActionException
fire
in interface Executable
fire
in class AtomicActor<TypedIOPort>
IllegalActionException
- If there's no director.public boolean prefire() throws IllegalActionException
prefire
in interface Executable
prefire
in class AtomicActor<TypedIOPort>
IllegalActionException
- If there is no director.