org.apache.hadoop.mapreduce.security.token.delegation.DelegationTokenIdentifier.java Source code

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Here is the source code for org.apache.hadoop.mapreduce.security.token.delegation.DelegationTokenIdentifier.java

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/**
 * 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.delegation;

import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.security.token.delegation.AbstractDelegationTokenIdentifier;

/**
 * A delegation token identifier that is specific to MapReduce.
 */
@InterfaceAudience.Private
@InterfaceStability.Unstable
public class DelegationTokenIdentifier extends AbstractDelegationTokenIdentifier {
    public static final Text MAPREDUCE_DELEGATION_KIND = new Text("MAPREDUCE_DELEGATION_TOKEN");

    /**
     * Create an empty delegation token identifier for reading into.
     */
    public DelegationTokenIdentifier() {
    }

    /**
     * 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 DelegationTokenIdentifier(Text owner, Text renewer, Text realUser) {
        super(owner, renewer, realUser);
    }

    @Override
    public Text getKind() {
        return MAPREDUCE_DELEGATION_KIND;
    }

}