ProgressMonitorで処理の進捗を表示

ProgressMonitor monitor = new ProgressMonitor(this, "message", "note", 0, 100);
monitor.setProgress(0);
worker = new SwingWorker<String, String>() {
  @Override public String doInBackground() {
    int current = 0;
    int lengthOfTask = 120; //list.size();
    while (current < lengthOfTask && !isCancelled()) {
      try {
        Thread.sleep(50);
      } catch (InterruptedException ie) {
        return "Interrupted";
      }
      setProgress(100 * current / lengthOfTask);
      publish(current + "/" + lengthOfTask);
      current++;
    }
    return "Done";
  }

  @Override protected void process(List<String> chunks) {
    for (String message : chunks) {
      monitor.setNote(message);
    }
  }

  @Override public void done() {
    runButton.setEnabled(true);
    monitor.close();
    String text = null;
    if (isCancelled()) {
      text = "Cancelled";
    } else {
      try {
        text = get();
      } catch (Exception ex) {
        ex.printStackTrace();
        text = "Exception";
      }
    }
    // System.out.println(text);
    area.append(text + "\n");
    area.setCaretPosition(area.getDocument().getLength());
    // appendLine(text);
  }
};
worker.addPropertyChangeListener(new ProgressListener(monitor));
worker.execute();