| /** |
| * 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.security.token; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.classification.InterfaceStability; |
| 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.UserGroupInformation; |
| |
| /** |
| * The token identifier for job token |
| */ |
| @InterfaceAudience.Private |
| @InterfaceStability.Unstable |
| public class JobTokenIdentifier extends TokenIdentifier { |
| private Text jobid; |
| public final static Text KIND_NAME = new Text("mapreduce.job"); |
| |
| /** |
| * Default constructor |
| */ |
| public JobTokenIdentifier() { |
| this.jobid = new Text(); |
| } |
| |
| /** |
| * Create a job token identifier from a jobid |
| * @param jobid the jobid to use |
| */ |
| public JobTokenIdentifier(Text jobid) { |
| this.jobid = jobid; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public Text getKind() { |
| return KIND_NAME; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public UserGroupInformation getUser() { |
| if (jobid == null || "".equals(jobid.toString())) { |
| return null; |
| } |
| return UserGroupInformation.createRemoteUser(jobid.toString()); |
| } |
| |
| /** |
| * Get the jobid |
| * @return the jobid |
| */ |
| public Text getJobId() { |
| return jobid; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public void readFields(DataInput in) throws IOException { |
| jobid.readFields(in); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public void write(DataOutput out) throws IOException { |
| jobid.write(out); |
| } |
| |
| @InterfaceAudience.Private |
| public static class Renewer extends Token.TrivialRenewer { |
| @Override |
| protected Text getKind() { |
| return KIND_NAME; |
| } |
| } |
| } |