/**
   * Implements {@link PacketListener}. Notifies this instance that a specific {@link Packet} (which
   * this instance has already expressed interest into by returning <tt>true</tt> from {@link
   * #accept(Packet)}) has been received.
   *
   * @param packet the <tt>Packet</tt> which has been received and which this instance is given a
   *     chance to process
   */
  public void processPacket(Packet packet) {
    /*
     * As we do elsewhere, acknowledge the receipt of the Packet first and
     * then go about our business with it.
     */
    IQ iq = (IQ) packet;

    if (iq.getType() == IQ.Type.SET)
      protocolProvider.getConnection().sendPacket(IQ.createResultIQ(iq));

    /*
     * Now that the acknowledging is out of the way, do go about our
     * business with the Packet.
     */
    ColibriConferenceIQ conferenceIQ = (ColibriConferenceIQ) iq;
    boolean interrupted = false;

    try {
      processColibriConferenceIQ(conferenceIQ);
    } catch (Throwable t) {
      logger.error(
          "An error occurred during the processing of a " + packet.getClass().getName() + " packet",
          t);

      if (t instanceof InterruptedException) {
        /*
         * We cleared the interrupted state of the current Thread by
         * catching the InterruptedException. However, we do not really
         * care whether the current Thread has been interrupted - we
         * caught the InterruptedException because we want to swallow
         * any Throwable. Consequently, we should better restore the
         * interrupted state.
         */
        interrupted = true;
      } else if (t instanceof ThreadDeath) throw (ThreadDeath) t;
    }
    if (interrupted) Thread.currentThread().interrupt();
  }
    /** Thread entry point. */
    @Override
    public void run() {
      int status;
      long progress;
      String statusReason = "";

      while (true) {
        try {
          Thread.sleep(10);

          status = parseJabberStatus(jabberTransfer.getStatus());
          progress = fileTransfer.getTransferedBytes();

          if (status == FileTransferStatusChangeEvent.FAILED
              || status == FileTransferStatusChangeEvent.COMPLETED
              || status == FileTransferStatusChangeEvent.CANCELED
              || status == FileTransferStatusChangeEvent.REFUSED) {
            if (fileTransfer instanceof OutgoingFileTransferJabberImpl) {
              ((OutgoingFileTransferJabberImpl) fileTransfer).removeThumbnailRequestListener();
            }

            // sometimes a filetransfer can be preparing
            // and than completed :
            // transfered in one iteration of current thread
            // so it won't go through intermediate state - inProgress
            // make sure this won't happen
            if (status == FileTransferStatusChangeEvent.COMPLETED
                && fileTransfer.getStatus() == FileTransferStatusChangeEvent.PREPARING) {
              fileTransfer.fireStatusChangeEvent(
                  FileTransferStatusChangeEvent.IN_PROGRESS, "Status changed");
              fileTransfer.fireProgressChangeEvent(System.currentTimeMillis(), progress);
            }

            break;
          }

          fileTransfer.fireStatusChangeEvent(status, "Status changed");
          fileTransfer.fireProgressChangeEvent(System.currentTimeMillis(), progress);
        } catch (InterruptedException e) {
          if (logger.isDebugEnabled()) logger.debug("Unable to sleep thread.", e);
        }
      }

      if (jabberTransfer.getError() != null) {
        logger.error(
            "An error occured while transfering file: " + jabberTransfer.getError().getMessage());
      }

      if (jabberTransfer.getException() != null) {
        logger.error(
            "An exception occured while transfering file: ", jabberTransfer.getException());

        if (jabberTransfer.getException() instanceof XMPPException) {
          XMPPError error = ((XMPPException) jabberTransfer.getException()).getXMPPError();
          if (error != null)
            if (error.getCode() == 406 || error.getCode() == 403)
              status = FileTransferStatusChangeEvent.REFUSED;
        }

        statusReason = jabberTransfer.getException().getMessage();
      }

      if (initialFileSize > 0
          && status == FileTransferStatusChangeEvent.COMPLETED
          && fileTransfer.getTransferedBytes() < initialFileSize) {
        status = FileTransferStatusChangeEvent.CANCELED;
      }

      fileTransfer.fireStatusChangeEvent(status, statusReason);
      fileTransfer.fireProgressChangeEvent(System.currentTimeMillis(), progress);
    }