hadoop DelegationTokenSecretManager 源码
haddop DelegationTokenSecretManager 代码
文件路径：/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/security/token/delegation/DelegationTokenSecretManager.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.mapreduce.security.token.delegation;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.security.token.delegation.AbstractDelegationTokenSecretManager;
/**
* A MapReduce specific delegation token secret manager.
* The secret manager is responsible for generating and accepting the password
* for each token.
*/
@InterfaceAudience.Private
@InterfaceStability.Unstable
public class DelegationTokenSecretManager
extends AbstractDelegationTokenSecretManager<DelegationTokenIdentifier> {
/**
* Create a secret manager
* @param delegationKeyUpdateInterval the number of milliseconds for rolling
* new secret keys.
* @param delegationTokenMaxLifetime the maximum lifetime of the delegation
* tokens in milliseconds
* @param delegationTokenRenewInterval how often the tokens must be renewed
* in milliseconds
* @param delegationTokenRemoverScanInterval how often the tokens are scanned
* for expired tokens in milliseconds
*/
public DelegationTokenSecretManager(long delegationKeyUpdateInterval,
long delegationTokenMaxLifetime,
long delegationTokenRenewInterval,
long delegationTokenRemoverScanInterval) {
super(delegationKeyUpdateInterval, delegationTokenMaxLifetime,
delegationTokenRenewInterval, delegationTokenRemoverScanInterval);
}
@Override
public DelegationTokenIdentifier createIdentifier() {
return new DelegationTokenIdentifier();
}
}
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