Tengo mi hilo de GUI principal que tiene un JprogressBar y está implementando ProprtyChangeListener.

Cuando se presiona un botón, una clase diferente, que extiende SwingWorker, entra en acción y realiza una serie de cálculos potencialmente largos. Necesito la barra de progreso en la clase A para presentar el progreso de acuerdo con una variable en la clase B.

Mi código está debajo (podría ser un poco complicado con todos mis intentos fallidos ...)

Agradecería cualquier ayuda.

CLASE GUI:

SignalSimulator signalSimulator = new SignalSimulator(
                path, numOfdataPoints, numOfLocalSpikes,
                    numOfExpSpikes, noiseAmp, slope, offset,
                                    rdbtnSineWave.isSelected());       
signalSimulator.addPropertyChangeListener( new PropertyChangeListener() {
    public void propertyChange(PropertyChangeEvent evt) {
        String property = evt.getPropertyName();
        if ("progress".equals(property)) {
            int progress = (Integer) evt.getNewValue();
            System.out.println("value in PropertChangeListener is: " + progress);
            progressBar.setValue(progress);
        }
    }
});
signalSimulator.execute(); 

Clase de cálculo:

protected Integer doInBackground() throws Exception {
    if (isSine){
        data = generateSineWave(numOfDataPoints, noiseAmp, offset);
        data = addAnomalies(data, numOfPointOutliers, numOfExpSpikes);
    } else {
        data = generateLinearSignal(numOfDataPoints, noiseAmp, slope, offset);
        data = addAnomalies(data, numOfPointOutliers, numOfExpSpikes);
    }
    writeLogFile(path, ".txt", data);
    firePropertyChange("progress", 1, 1);
    setProgress((int)progress);
    publish(progress);
    System.out.println("value in doInBackground is: " + progress);
    return 1;
}

EDITAR

El problema original permanece. Por alguna razón, la barra de progreso todavía no se actualiza, sé con certeza que la variable "progreso" en progressBar.setValue (progreso) se está actualizando, pero la barra de progreso en la GUI permanece sin cambios (fijada en 0) aquí está mi nuevo código:

Clase GUI:

    SignalSimulator signalSimulator = new SignalSimulator(path, numOfdataPoints, numOfLocalSpikes, numOfExpSpikes, noiseAmp, slope, offset, rdbtnSineWave.isSelected());       
    signalSimulator.addPropertyChangeListener( new PropertyChangeListener() {
      public void propertyChange(PropertyChangeEvent evt) {
        String property = evt.getPropertyName();

        if ("progress".equals(property)) {
            int progress = (Integer) evt.getNewValue();
             System.out.println("value in PropertChangeListener is: " + progress);
             progressBar.setValue(progress);

        }
      }
    });
    signalSimulator.execute();

Clase SwingWorker:

@Override
        protected Integer doInBackground() throws Exception {

            if (isSine){
                data = generateSineWave(numOfDataPoints, noiseAmp, offset);
                data = addAnomalies(data, numOfPointOutliers, numOfExpSpikes);
            }
            else{
                data = generateLinearSignal(numOfDataPoints, noiseAmp, slope, offset);
                data = addAnomalies(data, numOfPointOutliers, numOfExpSpikes);
            }

            writeLogFile(path, ".txt", data);

            return 1;}


public double[] generateSineWave(int numOfDataPoints, double noiseAmp, double offset){

            Random rnd = new Random();
            double[] dataArray = new double[numOfDataPoints];           


            for (int i=0;i<numOfDataPoints;i++){

                dataArray[i] =  Math.sin(Math.toRadians(i))+rnd.nextDouble()*noiseAmp+offset;
                progress = ((double)i)/(double)numOfDataPoints*100;

                //firePropertyChange("progress", 1, 1);
                setProgress((int)progress);
                //publish(progress);
                System.out.println("value in doInBackground is: " + progress);
            }

            return dataArray;           

EDITAR Reescribió todo sin el código extra (irrelevante). Supongo que me falta algo básico aquí porque todavía no actualiza la barra de progreso.

public class ProgressBarTest implements PropertyChangeListener {


    private JFrame frame;
    private JButton btnRun;
    static JProgressBar progressBar = new JProgressBar(0,100);

public static void main(String[] args) {

        EventQueue.invokeLater(new Runnable()  {
            public void run() {
                try {
                    //UIManager.setLookAndFeel("com.sun.java.swing.plaf.nimbus.NimbusLookAndFeel"); 
                    UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel"); 
                    ProgressBarTest window = new ProgressBarTest();
                    window.frame.setVisible(true);
                    //SignalSimulator signalSimulator = new SignalSimulator();

                } catch (Exception e) {
                    e.printStackTrace();
                }

            }
        });
    }

/**
 * Create the application.
 */
public ProgressBarTest() {
    initialize();
}

private void initialize() {
    frame = new JFrame();
    frame.setBounds(100, 100, 450, 300);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.getContentPane().setLayout(null);
    frame.setResizable(false);  

    JProgressBar progressBar = new JProgressBar();
    progressBar.setAlignmentX(Component.RIGHT_ALIGNMENT);
    progressBar.setBounds(0, 252, 444, 20);
    progressBar.setStringPainted(true);
    frame.getContentPane().add(progressBar);


    JButton btnRun = new JButton("Start Long Run");
    btnRun.setBounds(167, 214, 159, 31);
    frame.getContentPane().add(btnRun);
    btnRun.addActionListener(new ActionListener() {

        @Override
        public void actionPerformed(ActionEvent e) {
            // TODO Auto-generated method stub
            longRun();
        }

    } );

}


private void longRun(){

    LongRunner longRunner = new LongRunner(100000);
    longRunner.addPropertyChangeListener(new PropertyChangeListener() {

        @Override
        public void propertyChange(PropertyChangeEvent evt) {

            if ("progress".equals(evt.getPropertyName())){
                int progress = (int) evt.getNewValue();
                System.out.println("Value in propertyChangeListener: "+progress);
                progressBar.setValue(progress);
            }
        }
    });
    longRunner.execute();
}
@Override
public void propertyChange(PropertyChangeEvent arg0) {
    // TODO Auto-generated method stub

}

}

Y el SwingWorker:

import javax.swing.SwingWorker;


public class LongRunner extends SwingWorker<Integer, Double>{

    int numOfPoints;
    double progress;

    public LongRunner(int numOfPoints) {

        this.numOfPoints = numOfPoints;
        this.progress = 0;
    }

    private void runLong(int bigNum){

        for (int i=0; i< bigNum; i++){

            try {
                Thread.sleep(100);
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            progress =  (((double)i*100)/(double)bigNum);
            setProgress((int)progress);
            System.out.println("Value in setProgress: "+progress);

        }

    }
    @Override
    protected Integer doInBackground() throws Exception {

        runLong(numOfPoints);
        return null;
    }

}

¿Qué estoy haciendo mal aquí?