Examples of ptolemy.data.BooleanToken

ptolemy.data.BooleanToken
A token that contains a boolean variable. Arithmetic on booleans is that of a two-element Galois field (modulo two arithmetic). Thus, add() is logical xor, multiply() is logical and, zero() is false, one() is true.
In order to reduce the number of instances of this object that are created, it is highly recommended that the getInstance() method be used, instead of the constructor that takes a boolean argument. @author Neil Smyth, Yuhong Xiong, Edward A. Lee, Steve Neuendorffer, Christopher Brooks @version $Id: BooleanToken.java,v 1.84 2007/12/06 18:19:35 cxh Exp $ @since Ptolemy II 0.2 @Pt.ProposedRating Yellow (cxh) nil token @Pt.AcceptedRating Red (cxh)

        }


        // Exclusive-or with the input if there is any.
        for (int i = 0; i < input.getWidth(); i++) {
            if (input.hasToken(0)) {
                BooleanToken inputToken = (BooleanToken) input.get(0);
                boolean inputTokenValue = inputToken.booleanValue();
                parity = parity ^ (inputTokenValue ? 1 : 0);
            }
        }


        _latestShiftReg = reg | parity;

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        int reg = _latestShiftReg;


        for (int i = 0; i < _inputNumber; i++) {
            reg = reg << 1;


            BooleanToken input = (BooleanToken) inputToken[i];
            reg = reg | (input.booleanValue() ? 1 : 0);
        }


        _latestShiftReg = reg;


        // Compute the parities for all polynomials respectively.

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     *  If there is no input on any channel, then produce no output.
     *  @exception IllegalActionException If there is no director.
     */
    public void fire() throws IllegalActionException {
        // Don't call "super.fire();" here, the parent class is an actor.
        BooleanToken value = null;
        BooleanToken in = null;


        for (int i = 0; i < input.getWidth(); i++) {
            if (input.isKnown(i)) {
                if (input.hasToken(i)) {
                    in = (BooleanToken) (input.get(i));

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    /** Nullify results that cannot be asserted due to unknown inputs.
     */
    private BooleanToken _nullifyIncompleteResults(BooleanToken inValue)
            throws IllegalActionException {
        BooleanToken outValue = inValue;
        ;


        if (!input.isKnown()) {
            switch (_function) {
            case _AND:

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        input.setInput(true);
        input.setOutput(false);
        input.setMultiport(true);
        input.setTypeEquals(BaseType.DOUBLE);
        testValue = new Parameter(this, "Value", new DoubleToken(1.0));
        print = new Parameter(this, "Print", new BooleanToken(false));
    }

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        verticalResolution = new Parameter(this, "verticalResolution",
                new IntToken(400));
        verticalResolution.setTypeEquals(BaseType.INT);


        rotatable = new Parameter(this, "rotatable", new BooleanToken(true));
        rotatable.setTypeEquals(BaseType.BOOLEAN);


        scalable = new Parameter(this, "scalable", new BooleanToken(false));
        scalable.setTypeEquals(BaseType.BOOLEAN);


        translatable = new Parameter(this, "translatable", new BooleanToken(
                false));
        translatable.setTypeEquals(BaseType.BOOLEAN);


        showAxes = new Parameter(this, "showAxes", new BooleanToken(false));
        showAxes.setTypeEquals(BaseType.BOOLEAN);


        iterationSynchronized = new Parameter(this, "iterationSynchronized",
                new BooleanToken(false));
        iterationSynchronized.setTypeEquals(BaseType.BOOLEAN);


        backgroundColor = new ColorAttribute(this, "backgroundColor");
        backgroundColor.setExpression("{0.0, 0.0, 0.0, 1.0}");

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        numberOfInputs.setTypeEquals(BaseType.INT);


        numberOfLags = new Parameter(this, "numberOfLags", new IntToken(64));
        numberOfLags.setTypeEquals(BaseType.INT);


        biased = new Parameter(this, "biased", new BooleanToken(false));
        biased.setTypeEquals(BaseType.BOOLEAN);


        symmetricOutput = new Parameter(this, "symmetricOutput",
                new BooleanToken(false));
        symmetricOutput.setTypeEquals(BaseType.BOOLEAN);


        input.setTypeAtLeast(new FunctionTerm(input));


        // Set the output type to be an ArrayType.

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     */
    public void fire() throws IllegalActionException {
        super.fire();


        if ((ledRed.getWidth() > 0) && ledRed.hasToken(0)) {
            BooleanToken red = (BooleanToken) ledRed.get(0);


            if (red.booleanValue()) {
                _redOn();
            } else {
                _redOff();
            }
        }


        if ((ledGreen.getWidth() > 0) && ledGreen.hasToken(0)) {
            BooleanToken green = (BooleanToken) ledGreen.get(0);


            if (green.booleanValue()) {
                _greenOn();
            } else {
                _greenOff();
            }
        }


        if ((ledYellow.getWidth() > 0) && ledYellow.hasToken(0)) {
            BooleanToken yellow = (BooleanToken) ledYellow.get(0);


            if (yellow.booleanValue()) {
                _yellowOn();
            } else {
                _yellowOff();
            }
        }

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     *   supported by the derived class.
     *  @return A BooleanToken which contains the result of the test.
     */
    public BooleanToken isEqualTo(Token token) throws IllegalActionException {
        if (token instanceof SceneGraphToken) {
            return new BooleanToken(this == token);
        } else {
            throw new IllegalActionException(
                    "Equality test not supported between "
                            + this.getClass().getName() + " and "
                            + token.getClass().getName() + ".");

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            CompositeActor model = (CompositeActor) getContainer();
            TypedIOPort port = (TypedIOPort) model.getPort(portName);
            if (port != null) {
                if (port.getWidth() > 0) {
                    if (port.getType() == BaseType.BOOLEAN) {
                        port.send(0, new BooleanToken(expression));
                        return true;
                    } else if (port.getType() == BaseType.STRING) {
                        port.send(0, new StringToken(expression));
                        return true;
                    } else {

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