hadoop AnonymousAWSCredentialsProvider 源码
haddop AnonymousAWSCredentialsProvider 代码
文件路径：/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/AnonymousAWSCredentialsProvider.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;
import com.amazonaws.auth.AWSCredentialsProvider;
import com.amazonaws.auth.AnonymousAWSCredentials;
import com.amazonaws.auth.AWSCredentials;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
/**
* AnonymousAWSCredentialsProvider supports anonymous access to AWS services
* through the AWS SDK. AWS requests will not be signed. This is not suitable
* for most cases, because allowing anonymous access to an S3 bucket compromises
* security. This can be useful for accessing public data sets without
* requiring AWS credentials.
*
* Please note that users may reference this class name from configuration
* property fs.s3a.aws.credentials.provider. Therefore, changing the class name
* would be a backward-incompatible change.
*
* @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.
*/
@InterfaceAudience.Private
@InterfaceStability.Stable
@Deprecated
public class AnonymousAWSCredentialsProvider implements AWSCredentialsProvider {
public static final String NAME
= "org.apache.hadoop.fs.s3a.AnonymousAWSCredentialsProvider";
public AWSCredentials getCredentials() {
return new AnonymousAWSCredentials();
}
public void refresh() {}
@Override
public String toString() {
return getClass().getSimpleName();
}
}
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