hadoop BaseClientToAMTokenSecretManager 源码
haddop BaseClientToAMTokenSecretManager 代码
文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/security/client/BaseClientToAMTokenSecretManager.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.yarn.security.client;
import javax.crypto.SecretKey;
import org.apache.hadoop.classification.InterfaceAudience.Private;
import org.apache.hadoop.classification.InterfaceAudience.Public;
import org.apache.hadoop.classification.InterfaceStability.Evolving;
import org.apache.hadoop.security.token.SecretManager;
import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
/**
* A base {@link SecretManager} for AMs to extend and validate Client-RM tokens
* issued to clients by the RM using the underlying master-key shared by RM to
* the AMs on their launch. All the methods are called by either Hadoop RPC or
* YARN, so this class is strictly for the purpose of inherit/extend and
* register with Hadoop RPC.
*/
@Public
@Evolving
public abstract class BaseClientToAMTokenSecretManager extends
SecretManager<ClientToAMTokenIdentifier> {
@Private
public abstract SecretKey getMasterKey(
ApplicationAttemptId applicationAttemptId);
@Private
@Override
public synchronized byte[] createPassword(
ClientToAMTokenIdentifier identifier) {
return createPassword(identifier.getBytes(),
getMasterKey(identifier.getApplicationAttemptID()));
}
@Private
@Override
public byte[] retrievePassword(ClientToAMTokenIdentifier identifier)
throws SecretManager.InvalidToken {
SecretKey masterKey = getMasterKey(identifier.getApplicationAttemptID());
if (masterKey == null) {
throw new SecretManager.InvalidToken("Illegal client-token!");
}
return createPassword(identifier.getBytes(), masterKey);
}
@Private
@Override
public ClientToAMTokenIdentifier createIdentifier() {
return new ClientToAMTokenIdentifier();
}
}
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