001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018 package org.apache.hadoop.lib.service; 019 020 import org.apache.hadoop.classification.InterfaceAudience; 021 import org.apache.hadoop.fs.http.client.HttpFSKerberosAuthenticator; 022 import org.apache.hadoop.io.Text; 023 import org.apache.hadoop.security.token.delegation.AbstractDelegationTokenIdentifier; 024 025 /** 026 * HttpFS <code>DelegationTokenIdentifier</code> implementation. 027 */ 028 @InterfaceAudience.Private 029 public class DelegationTokenIdentifier 030 extends AbstractDelegationTokenIdentifier { 031 032 public static final Text KIND_NAME = 033 new Text(HttpFSKerberosAuthenticator.TOKEN_KIND); 034 035 public DelegationTokenIdentifier() { 036 } 037 038 /** 039 * Create a new delegation token identifier 040 * 041 * @param owner the effective username of the token owner 042 * @param renewer the username of the renewer 043 * @param realUser the real username of the token owner 044 */ 045 public DelegationTokenIdentifier(Text owner, Text renewer, Text realUser) { 046 super(owner, renewer, realUser); 047 } 048 049 050 /** 051 * Returns the kind, <code>TOKEN_KIND</code>. 052 * @return returns <code>TOKEN_KIND</code>. 053 */ 054 @Override 055 public Text getKind() { 056 return KIND_NAME; 057 } 058 059 }