class CtripUserService implements UserService {

  @Override
  public UserInfo findByUserId(String userId) {
    List<UserInfo> userInfoList = this.findByUserIds(Lists.newArrayList(userId));
    if (CollectionUtils.isEmpty(userInfoList)) {
      return null;
    }
    return userInfoList.get(0);
  }

  public  CtripUserService(PortalConfig portalConfig);

}