Examples of ptolemy.data.ArrayToken

ptolemy.data.ArrayToken
A token that contains an array of tokens. The operations between arrays are defined pointwise, and require that the lengths of the arrays are the same. The elements of the ArrayToken will be converted to the least upper bound of their input types. Zero length array tokens are supported, given a prototype element to determine the type of the array. @author Yuhong Xiong, Steve Neuendorffer, Contributor: Christopher Brooks @version $Id: ArrayToken.java,v 1.119 2007/12/07 06:31:43 cxh Exp $ @since Ptolemy II 0.4 @Pt.ProposedRating Yellow (cxh) @Pt.AcceptedRating Red (cxh) nil token code

                        .get(jj)).intValue();
            }
        }


        if (data.hasToken(0)) {
            ArrayToken dataArrayToken = (ArrayToken) data.get(0);


            byte[] dataBytes = new byte[dataArrayToken.length()];


            for (int j = 0; j < dataArrayToken.length(); j++) {
                UnsignedByteToken token = (UnsignedByteToken) dataArrayToken
                        .getElement(j);
                dataBytes[j] = token.byteValue();
            }


            DatagramPacket packet = new DatagramPacket(dataBytes,

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     *  @exception IllegalActionException If the input is not a decodable code.
     */
    public void fire() throws IllegalActionException {
        super.fire();


        ArrayToken alphabetArrayToken = (ArrayToken) alphabet.getToken();
        Token[] alphabetTokens = new Token[_pmf.length];


        for (int i = 0; i < _pmf.length; i++) {
            alphabetTokens[i] = alphabetArrayToken.getElement(i);
        }


        // Get the input token. Ready for output.
        if (!input.hasToken(0) && !_code.equals("")) {
            throw new IllegalActionException(this,

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     *  encode the input into booleans and send them to the output port.
     */
    public void fire() throws IllegalActionException {
        super.fire();


        ArrayToken alphabetArrayToken = (ArrayToken) alphabet.getToken();
        Token[] alphabetTokens = new Token[_pmf.length];


        for (int i = 0; i < _pmf.length; i++) {
            alphabetTokens[i] = alphabetArrayToken.getElement(i);
        }


        // Get the input token. Ready for output.
        Token inputToken = input.get(0);

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    public void attributeChanged(Attribute attribute)
            throws IllegalActionException {
        _parametersInvalid = true;


        if (attribute == pmf) {
            ArrayToken pmfValue = (ArrayToken) pmf.getToken();
            _pmf = new double[pmfValue.length()];


            double sum = 0.0;


            for (int i = 0; i < _pmf.length; i++) {
                _pmf[i] = ((DoubleToken) pmfValue.getElement(i)).doubleValue();


                if (_pmf[i] <= 0.0) {
                    throw new IllegalActionException(this,
                            "Probabilities must be positive!");
                }

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    /** Generate the Huffman codebook for the given <i>pmf</i>, and
     *  encode the input into booleans and send them to the output port.
     */
    public void fire() throws IllegalActionException {
        super.fire();
        ArrayToken alphabetArrayToken = (ArrayToken) alphabet.getToken();


        if (_pmf.length != alphabetArrayToken.length()) {
            throw new IllegalActionException(this,
                    "uncoded alphabet and pmf are required to be arrays"
                            + "with same length.");
        }


        Token[] alphabetTokens = new Token[_pmf.length];


        for (int i = 0; i < _pmf.length; i++) {
            alphabetTokens[i] = alphabetArrayToken.getElement(i);
        }


        if (_parametersInvalid) {
            _parametersInvalid = false;
            _codeBook = generateCodeBook(_pmf);


            // FIXME: only produce the code book if the parameters
            // have been updated.
            StringToken[] codeBookTokens = new StringToken[_pmf.length];


            for (int i = 0; i < _pmf.length; i++) {
                codeBookTokens[i] = new StringToken(_codeBook[i]);
            }


            huffmanCodeBook.send(0, new ArrayToken(BaseType.STRING,
                    codeBookTokens));
        }
    }

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     *   increasing.
     */
    public void attributeChanged(Attribute attribute)
            throws IllegalActionException {
        if (attribute == levels) {
            ArrayToken levelsValue = (ArrayToken) levels.getToken();
            double[] _levels = new double[levelsValue.length()];
            double previous = Double.NEGATIVE_INFINITY;


            for (int i = 0; i < levelsValue.length(); i++) {
                _levels[i] = ((DoubleToken) levelsValue.getElement(i))
                        .doubleValue();


                // Check nondecreasing property.
                if (_levels[i] < previous) {
                    throw new IllegalActionException(this,

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        for (int i = 0; i < _bins.length; i++) {
            values[i] = new IntToken(_bins[i]);
        }


        output.send(0, new ArrayToken(BaseType.INT, values));
    }

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            _inputNumberInvalid = true;


            // Set the input consumption rate.
            _inputRate.setToken(new IntToken(_inputNumber));
        } else if (attribute == polynomialArray) {
            ArrayToken maskToken = ((ArrayToken) polynomialArray.getToken());
            _maskNumber = maskToken.length();
            _mask = new int[_maskNumber];
            _maxPolyValue = 0;


            for (int i = 0; i < _maskNumber; i++) {
                _mask[i] = ((IntToken) maskToken.getElement(i)).intValue();


                if (_mask[i] <= 0) {
                    throw new IllegalActionException(this,
                            "Polynomial is required to be strictly positive.");
                }

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                _reflectionCoefficientsCache[i] = 0.0;
            }
        }


        // Reinitialize the reflection coefficients from the parameter value.
        ArrayToken value = (ArrayToken) reflectionCoefficients.getToken();
        for (int i = 0; i < _order; i++) {
            _reflectionCoefficients[i] = ((DoubleToken) value.getElement(i))
                    .doubleValue();
        }
    }

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            outputArray[i - 1] = new DoubleToken(newCoefficient);
            _reflectionCoefficientsCache[i - 1] = newCoefficient;
            _estimatedErrorPowerCache[i] = newError;
        }


        adaptedReflectionCoefficients.send(0, new ArrayToken(BaseType.DOUBLE,
                outputArray));
    }

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