public void processAction(ActionRequest request, ActionResponse response)
      throws PortletException, IOException {
    String action = request.getParameter(Settings.PARAM_ACTION);
    if (action == null) {
      action = "";
    }

    if (action.equalsIgnoreCase(Settings.PARAMV_ACTION_CHANGE_TAB)) {
      String newTab = request.getParameter(Settings.PARAM_TAB);
      processTab(response, newTab);

    } else {
      UtilsSearch.processActionForPartnerPortlet(request, response, PAGE_PARTNER);
    }
  }