Class MultiPort

android/src/MultiPort.java:36–171

An #AndroidPort implementation that combines multiple #AndroidPort objects.

 * objects.
 */
class MultiPort implements AndroidPort, InputListener {
  private PortListener portListener;
  private InputListener inputListener;

  private static final String TAG = "XCSoar";

  private Collection<AndroidPort> ports = new LinkedList<AndroidPort>();
  private boolean error = false;

  private synchronized int checkValid() {
    boolean ready = false, limbo = false;

    for (Iterator<AndroidPort> i = ports.iterator(); i.hasNext();) {
      AndroidPort port = i.next();

      switch (port.getState()) {
      case STATE_READY:
        ready = true;
        break;

      case STATE_FAILED:
        Log.i(TAG, "Bluetooth disconnect from " + port);

        i.remove();
        try {
          port.close();
        } catch (IOException e) {
        }
        error = true;
        break;

      case STATE_LIMBO:
        limbo = true;
        break;
      }
    }

    if (ready) {
      error = false;
      return STATE_READY;
    } else if (limbo || !error) {
      error = false;
      return STATE_LIMBO;
    } else
      return STATE_FAILED;
  }

  public synchronized void add(AndroidPort port) {
    error = false;
    checkValid();

    ports.add(port);
    port.setListener(portListener);
    port.setInputListener(this);
  }

  @Override public void setListener(PortListener _listener) {
    portListener = _listener;