hadoop AwsSignerInitializer 源码
haddop AwsSignerInitializer 代码
文件路径：/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/auth/AwsSignerInitializer.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.s3a.auth;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.s3a.auth.delegation.DelegationTokenProvider;
import org.apache.hadoop.fs.s3a.S3AFileSystem;
import org.apache.hadoop.security.UserGroupInformation;
/**
* Interface which can be implemented to allow initialization of any custom
* signers which may be used by the {@link S3AFileSystem}.
*/
public interface AwsSignerInitializer {
/**
* Register a store instance.
*
* @param bucketName the bucket name
* @param storeConf the store configuration
* @param dtProvider delegation token provider for the store
* @param storeUgi ugi under which the store is operating
*/
void registerStore(String bucketName, Configuration storeConf,
DelegationTokenProvider dtProvider, UserGroupInformation storeUgi);
/**
* Unregister a store instance.
*
* @param bucketName the bucket name
* @param storeConf the store configuration
* @param dtProvider delegation token provider for the store
* @param storeUgi ugi under which the store is operating
*/
void unregisterStore(String bucketName, Configuration storeConf,
DelegationTokenProvider dtProvider, UserGroupInformation storeUgi);
}
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