class LeaseRenewer {

  public static LeaseRenewer getInstance(final String authority,
      final UserGroupInformation ugi, final DFSClient dfsc) {
    final LeaseRenewer r = Factory.INSTANCE.get(authority, ugi);
    r.addClient(dfsc);
    return r;
  }

  private  LeaseRenewer(Factory.Key factorykey);

}