hadoop KMSDelegationToken 源码
haddop KMSDelegationToken 代码
文件路径：/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/crypto/key/kms/KMSDelegationToken.java
/**
* 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.crypto.key.kms;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.security.token.delegation.web.DelegationTokenIdentifier;
/**
* Holder class for KMS delegation tokens.
*/
@InterfaceAudience.Private
public final class KMSDelegationToken {
public static final String TOKEN_KIND_STR = "kms-dt";
public static final Text TOKEN_KIND = new Text(TOKEN_KIND_STR);
// Utility class is not supposed to be instantiated.
private KMSDelegationToken() {
}
/**
* DelegationTokenIdentifier used for the KMS.
*/
public static class KMSDelegationTokenIdentifier
extends DelegationTokenIdentifier {
public KMSDelegationTokenIdentifier() {
super(TOKEN_KIND);
}
@Override
public Text getKind() {
return TOKEN_KIND;
}
}
}
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