/**
   * Lifecycle method invoked when the consumer has created. Internally create or reuse a connection
   * to the low level dropbox client
   *
   * @throws Exception
   */
  @Override
  protected void doStart() throws Exception {
    if (configuration.getClient() == null) {
      // create dropbox client
      configuration.createClient();

      LOG.info("consumer dropbox client created");
    }

    super.doStart();
  }