| |
| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.hadoop.mapreduce.v2.api; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.classification.InterfaceAudience.Private; |
| import org.apache.hadoop.io.Text; |
| import org.apache.hadoop.security.token.Token; |
| import org.apache.hadoop.security.token.TokenIdentifier; |
| import org.apache.hadoop.security.token.delegation.AbstractDelegationTokenIdentifier; |
| |
| /** |
| * {@link TokenIdentifier} that identifies delegation tokens |
| * issued by JobHistoryServer to delegate |
| * MR tasks talking to the JobHistoryServer. |
| */ |
| @Private |
| // TODO Move to a different package. |
| public class MRDelegationTokenIdentifier extends AbstractDelegationTokenIdentifier { |
| |
| public static final Text KIND_NAME = new Text("MR_DELEGATION_TOKEN"); |
| |
| |
| public MRDelegationTokenIdentifier() { |
| } |
| |
| /** |
| * Create a new delegation token identifier |
| * @param owner the effective username of the token owner |
| * @param renewer the username of the renewer |
| * @param realUser the real username of the token owner |
| */ |
| public MRDelegationTokenIdentifier(Text owner, Text renewer, Text realUser) { |
| super(owner, renewer, realUser); |
| } |
| |
| |
| @Override |
| public Text getKind() { |
| return KIND_NAME; |
| } |
| |
| @InterfaceAudience.Private |
| public static class Renewer extends Token.TrivialRenewer { |
| @Override |
| protected Text getKind() { |
| return KIND_NAME; |
| } |
| } |
| } |