hadoop AbstractAWSCredentialProvider 源码
haddop AbstractAWSCredentialProvider 代码
文件路径：/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/auth/AbstractAWSCredentialProvider.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 javax.annotation.Nullable;
import java.net.URI;
import com.amazonaws.auth.AWSCredentialsProvider;
import org.apache.hadoop.conf.Configuration;
/**
* Base class for AWS credential providers which
* take a URI and config in their constructor.
*
* @deprecated This class will be replaced by one that implements AWS SDK V2's AwsCredentialProvider
* as part of upgrading S3A to SDK V2. See HADOOP-18073.
*/
@Deprecated
public abstract class AbstractAWSCredentialProvider
implements AWSCredentialsProvider {
private final URI binding;
private final Configuration conf;
/**
* Construct from URI + configuration.
* @param uri URI: may be null.
* @param conf configuration.
*/
protected AbstractAWSCredentialProvider(
@Nullable final URI uri,
final Configuration conf) {
this.conf = conf;
this.binding = uri;
}
public Configuration getConf() {
return conf;
}
/**
* Get the binding URI: may be null.
* @return the URI this instance was constructed with,
* if any.
*/
public URI getUri() {
return binding;
}
/**
* Refresh is a no-op by default.
*/
@Override
public void refresh() {
}
}
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