protected JSONObject getCustomerData(Customer customer) {
    JSONObject jsonObject = new JSONObject();

    jsonObject.put(Constants.FORM_CUSTOMER_ID, customer.getId());
    jsonObject.put(Constants.FORM_FIRST_NAME, customer.getFirstName());
    jsonObject.put(Constants.FORM_LAST_NAME, customer.getLastName());
    jsonObject.put(Constants.FORM_STREET, customer.getStreet());
    jsonObject.put(Constants.FORM_CITY, customer.getCity());
    jsonObject.put(Constants.FORM_STATE, customer.getState());
    jsonObject.put(Constants.FORM_ZIP, customer.getZip());
    jsonObject.put(Constants.FORM_COUNTRY, customer.getCountry());

    return jsonObject;
  }