protected Image getDefaultImage(HttpServletRequest request, long imageId) {
    String path = GetterUtil.getString(request.getPathInfo());

    if (path.startsWith("/company_logo")
        || path.startsWith("/layout_set_logo")
        || path.startsWith("/logo")) {

      return ImageLocalServiceUtil.getDefaultCompanyLogo();
    } else if (path.startsWith("/organization_logo")) {
      return ImageLocalServiceUtil.getDefaultOrganizationLogo();
    } else if (path.startsWith("/user_female_portrait")) {
      return ImageLocalServiceUtil.getDefaultUserFemalePortrait();
    } else if (path.startsWith("/user_male_portrait")) {
      return ImageLocalServiceUtil.getDefaultUserMalePortrait();
    } else if (path.startsWith("/user_portrait")) {
      return ImageLocalServiceUtil.getDefaultUserMalePortrait();
    } else {
      return null;
    }
  }