hadoop CustomDelegationTokenManager 源码
haddop CustomDelegationTokenManager 代码
文件路径：/hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/extensions/CustomDelegationTokenManager.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.fs.azurebfs.extensions;
import java.io.IOException;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.security.token.delegation.web.DelegationTokenIdentifier;
import org.apache.hadoop.security.token.Token;
/**
* Interface for Managing the Delegation tokens.
*
* Implementations which also implement BoundDTExtension will have
* the its {@code bind()} called
* after {@code initialize)} and before any calls to
* {@link #getDelegationToken(String)}.
* It will not be bound during token renew or cancel operations: there is
* no Filesystem to bind to in those operations.
*/
@InterfaceAudience.LimitedPrivate("authorization-subsystems")
@InterfaceStability.Unstable
public interface CustomDelegationTokenManager {
/**
* Initialize with supported configuration. This method is invoked when the
* (URI, Configuration)} method is invoked.
*
* @param configuration Configuration object
* @throws IOException if instance can not be configured.
*/
void initialize(Configuration configuration)
throws IOException;
/**
* Get Delegation token.
* @param renewer delegation token renewer
* @return delegation token
* @throws IOException when error in getting the delegation token
*/
Token<DelegationTokenIdentifier> getDelegationToken(String renewer)
throws IOException;
/**
* Renew the delegation token.
* @param token delegation token.
* @return renewed time.
* @throws IOException when error in renewing the delegation token
*/
long renewDelegationToken(Token<?> token) throws IOException;
/**
* Cancel the delegation token.
* @param token delegation token.
* @throws IOException when error in cancelling the delegation token.
*/
void cancelDelegationToken(Token<?> token) throws IOException;
}
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