/**
   * read enviroment value of FAMUNDO_SERVER_TYPE and return the enum it maches
   *
   * @return enum ServerEnv
   */
  private static ServerEnv initServerEnv() {

    String env = System.getenv("FAMUNDO_SERVER_TYPE");
    if (!FUtil.isBlank(env)) {
      ServerEnv[] srva = {DUDI_SERVER, TEST_SERVER, PRODUCTION_SERVER};
      for (int i = 0; i < srva.length; i++) {
        if (srva[i].getEnvName().equals(env)) return srva[i];
      }
    }
    return DUDI_SERVER; // default
  }