Examples of ptolemy.actor.TypedCompositeActor

ptolemy.actor.TypedCompositeActor
A TypedCompositeActor is an aggregation of typed actors.

When exporting MoML, instances of this class identify their class name as TypedCompositeActor. If a derived class does not change this, then it too will be identified as a TypedCompositeActor. To change this in a derived class, put the following line in the constructor
```
 getMoMLInfo().className = "full class name"; 
```
If you do this, you will probably also want to override _exportMoMLContents() to not generate a description of the contents of the composite, since they will be already defined in the Java class.

The ports of a TypedCompositeActor are constrained to be TypedIOPorts, the relations to be TypedIORelations, and the actors to be instances of ComponentEntity that implement the TypedActor interface. Derived classes may impose further constraints by overriding newPort(), _addPort(), newRelation(), _addRelation(), and _addEntity(). Also, derived classes may constrain the container by overriding _checkContainer().
@author Yuhong Xiong @version $Id: TypedCompositeActor.java,v 1.98 2007/12/07 06:24:50 cxh Exp $ @since Ptolemy II 0.2 @Pt.ProposedRating Green (yuhong) @Pt.AcceptedRating Green (lmuliadi) @see ptolemy.actor.TypedIOPort @see ptolemy.actor.TypedIORelation @see ptolemy.actor.TypedActor @see ptolemy.kernel.ComponentEntity @see ptolemy.actor.CompositeActor

import ptolemy.kernel.util.NamedObj;
import ptolemy.kernel.util.Workspace;


public class TutorialApplet2 extends PtolemyApplet {
    public NamedObj _createModel(Workspace workspace) throws Exception {
        TypedCompositeActor toplevel = new TypedCompositeActor(workspace);


        // Create the director.
        DEDirector director = new DEDirector(toplevel, "director");
        director.stopTime.setExpression("10.0");


        // Create two actors.
        Clock clock = new Clock(toplevel, "clock");
        TimedPlotter plotter = new TimedPlotter(toplevel, "plotter");


        // Connect them.
        toplevel.connect(clock.output, plotter.input);
        return toplevel;
    }

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                new DoubleToken(0.02));
        feedbackGain = new Parameter(this, "feedbackGain", new DoubleToken(
                -20.0));


        // CT subsystem
        TypedCompositeActor ctsub = new TypedCompositeActor(this, "CTSubsystem");
        Parameter ctSamplePeriod = new Parameter(ctsub, "samplePeriod");
        ctSamplePeriod.setExpression("samplePeriod");


        Parameter ctFeedbackGain = new Parameter(ctsub, "feedbackGain");
        ctFeedbackGain.setExpression("feedbackGain");


        TypedIOPort subin = new TypedIOPort(ctsub, "Pin");
        subin.setInput(true);


        TypedIOPort subout = new TypedIOPort(ctsub, "Pout");
        subout.setOutput(true);


        CTMixedSignalDirector ctdir = new CTMixedSignalDirector(ctsub,
                "CTEmbDir");


        //ctdir.addDebugListener(new StreamListener());
        // ---------------------------------
        // Create the actors.
        // ---------------------------------
        // CTActors
        CurrentTime time = new CurrentTime(ctsub, "CurTime");
        TrigFunction trigFunction = new TrigFunction(ctsub, "TrigFunction");
        ZeroOrderHold hold = new ZeroOrderHold(ctsub, "Hold");
        AddSubtract add1 = new AddSubtract(ctsub, "Add1");


        Integrator intgl1 = new Integrator(ctsub, "Integrator1");
        Integrator intgl2 = new Integrator(ctsub, "Integrator2");
        Scale scale0 = new Scale(ctsub, "Scale0");
        Scale scale1 = new Scale(ctsub, "Scale1");
        Scale scale2 = new Scale(ctsub, "Scale2");
        Scale scale3 = new Scale(ctsub, "Scale3");
        Scale scale4 = new Scale(ctsub, "Scale4");
        scale4.factor.setExpression("feedbackGain");


        TimedPlotter ctPlot = new TimedPlotter(ctsub, "CTPlot");
        ctPlot.plot = new Plot();
        ctPlot.plot.setGrid(true);
        ctPlot.plot.setXRange(0.0, stopT);
        ctPlot.plot.setYRange(-1.0, 1.0);
        ctPlot.plot.setSize(500, 180);
        ctPlot.plot.addLegend(0, "Position");
        ctPlot.plot.addLegend(1, "Input");
        ctPlot.plot.addLegend(2, "Control");


        CTPeriodicSampler ctSampler = new CTPeriodicSampler(ctsub,
                "PeriodicSampler");
        ctSampler.samplePeriod.setExpression("samplePeriod");


        // CT Connections
        ctsub.connect(time.output, scale3.input);
        ctsub.connect(scale3.output, trigFunction.input);


        Relation cr0 = ctsub.connect(trigFunction.output, scale0.input, "CR0");
        ctsub.connect(scale0.output, add1.plus, "CR1");
        ctsub.connect(add1.output, intgl1.input, "CR2");


        Relation cr3 = ctsub.connect(intgl1.output, intgl2.input, "CR3");
        Relation cr4 = ctsub.connect(intgl2.output, ctPlot.input, "CR4");
        scale1.input.link(cr3);
        scale2.input.link(cr4);
        ctSampler.input.link(cr4);


        TypedIORelation cr5 = new TypedIORelation(ctsub, "CR5");
        ctSampler.output.link(cr5);
        subout.link(cr5);
        ctsub.connect(scale1.output, add1.plus, "CR6");
        ctsub.connect(scale2.output, add1.plus, "CR7");
        ctsub.connect(scale4.output, add1.plus, "CR8");


        TypedIORelation cr9 = new TypedIORelation(ctsub, "CR9");
        hold.input.link(cr9);
        subin.link(cr9);


        Relation cr10 = ctsub.connect(hold.output, scale4.input, "CR10");
        ctPlot.input.link(cr0);
        ctPlot.input.link(cr10);


        // DE System
        ptolemy.domains.de.lib.TimedDelay delay = new ptolemy.domains.de.lib.TimedDelay(

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                    // requests, but more importantly, we need to execute
                    // any change requests that may have been queued
                    // during cloning. The following call does that.
                    newModel.setDeferringChangeRequests(false);
                } else {
                    newModel = new TypedCompositeActor(new Workspace());
                }


                // The model should have a parser associated with it
                // so that undo works.
                // Checking to see if there already is a _parser attribute

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        // FIXME: It is inefficient to calculate and set the inside DT
        // director's period value at every call to this function
        Token periodToken;
        double periodValue = 0.0;
        Director outsideDirector;
        TypedCompositeActor container = (TypedCompositeActor) getContainer();
        boolean shouldUpdatePeriod = false;


        outsideDirector = _getOutsideDirector();


        if (outsideDirector instanceof DTDirector) {

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     *   output port.
     *  @param port The port to transfer tokens from.
     *  @return True if data are transferred.
     */
    public boolean transferOutputs(IOPort port) throws IllegalActionException {
        TypedCompositeActor container = (TypedCompositeActor) getContainer();
        Boolean flag = (Boolean) _shouldTransferOutputs.get(port);


        if (_shouldDoInternalTransferOutputs && flag.booleanValue()) {
            if (container.getExecutiveDirector() instanceof DTDirector) {
                // If we have dt inside dt, then transfer all of the
                // tokens that were created.  The containing director
                // will figure out what time they should appear.
                return super.transferOutputs(port);
            } else {

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     *  that are completing invocation at the end of this cycle.
     *  @exception IllegalActionException If this director does not have a
     *   container.
     */
    public void fire() throws IllegalActionException {
        TypedCompositeActor container = (TypedCompositeActor) getContainer();


        if (container == null) {
            throw new IllegalActionException(this, "Has no container!");
        }

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    /** Build the internal cache of all the ports directed by this director
     *
     *  @exception IllegalActionException If methods called throw it.
     */
    private void _buildOutputPortTable() throws IllegalActionException {
        TypedCompositeActor container = (TypedCompositeActor) getContainer();


        _shouldTransferOutputs = new HashMap();


        Iterator outports = container.outputPortList().iterator();


        while (outports.hasNext()) {
            IOPort port = (IOPort) outports.next();


            _shouldTransferOutputs.put(port, Boolean.TRUE);

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     *
     *  @exception IllegalActionException If methods called throw it.
     */
    private final void _checkValidTimeIntervals() throws IllegalActionException {
        //  -checkValidTimeIntervals-
        TypedCompositeActor container = (TypedCompositeActor) getContainer();
        Director outsideDirector = _getOutsideDirector();
        _debug("shouldIgnoreFire subroutine called");


        // No need to check if this director is in the top level.
        if (outsideDirector == null) {
            _formerValidTimeFired = getModelTime();
            return;
        }


        // No need to check if the executive director is also a DTDirector
        if (outsideDirector instanceof DTDirector) {
            _formerValidTimeFired = getModelTime();
            return;
        }


        Time currentTime = outsideDirector.getModelTime();
        Time currentPeriod = new Time(this, getPeriod());
        Time timeElapsed = currentTime.subtract(_formerValidTimeFired);


        _debug("DT Director just started fire----------------"
                + _formerValidTimeFired + " " + currentTime);


        if ((currentTime.getDoubleValue() != 0) && (!_inputTokensAvailable)
                && (currentTime.compareTo(_formerTimeFired) == 0)) {
            //  duplicate firings at the same time should be ignored
            //  unless there are input tokens
            _debug("duplicate firing");
            _isFiringAllowed = false;
            _shouldDoInternalTransferOutputs = false;
            _makeTokensUnavailable();
            return;
        } else {
            _formerTimeFired = currentTime;
        }


        // this occurs during startup
        if (currentTime.getDoubleValue() == 0) {
            _debug("first firing");
            _shouldDoInternalTransferOutputs = true;
            _formerValidTimeFired = currentTime;
            _issuePseudoFire(currentTime);
            _isFiringAllowed = true;
            return;
        }


        Time timeRemaining = currentPeriod.subtract(timeElapsed);
        _debug("timeElapsed = " + timeElapsed);
        _debug("timeRemaining = " + timeRemaining);
        _debug("tolerance = " + _TOLERANCE);


        if (timeRemaining.getDoubleValue() < 0) {
            // this case should not occur
            _debug("InternalErrorException time: " + _formerValidTimeFired
                    + " " + currentTime);
            throw new InternalErrorException("unexpected time rollback");
        }


        if ((timeRemaining.getDoubleValue() > 0)
                && (timeElapsed.getDoubleValue() > 0)) {
            Iterator outputPorts = container.outputPortList().iterator();
            _isFiringAllowed = false;


            while (outputPorts.hasNext()) {
                Receiver[][] insideReceivers;
                TypedIOPort port = (TypedIOPort) outputPorts.next();

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     *  holds this director.  If this director is inside a toplevel
     *  container, then the returned value is null.
     *  @return The executive director
     */
    private Director _getOutsideDirector() {
        TypedCompositeActor container = (TypedCompositeActor) getContainer();
        Director outsideDirector = container.getExecutiveDirector();


        return outsideDirector;
    }

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     *  @param time The time when this director's container should be fired
     *  @exception IllegalActionException If getting the container or
     *  executive director fails
     */
    private void _requestRefireAt(Time time) throws IllegalActionException {
        TypedCompositeActor container = (TypedCompositeActor) getContainer();
        Director outsideDirector = container.getExecutiveDirector();


        if (outsideDirector != null) {
            outsideDirector.fireAt(container, time);
        }
    }

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