hadoop MarshalledCredentialProvider 源码

  • 2022-10-20
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haddop MarshalledCredentialProvider 代码


 * 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,
 * See the License for the specific language governing permissions and
 * limitations under the License.

package org.apache.hadoop.fs.s3a.auth;

import java.io.IOException;
import java.net.URI;

import com.amazonaws.auth.AWSCredentials;

import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.s3a.CredentialInitializationException;

import static org.apache.hadoop.util.Preconditions.checkNotNull;
import static org.apache.hadoop.fs.s3a.auth.MarshalledCredentialBinding.toAWSCredentials;

 * AWS credential provider driven from marshalled session/full credentials
 * (full, simple session or role).
 * This is <i>not</i> intended for explicit use in job/app configurations,
 * instead it is returned by Delegation Token Bindings, as needed.
 * The constructor implicitly prevents explicit use.
public class MarshalledCredentialProvider extends
    AbstractSessionCredentialsProvider {

  /** Name: {@value}. */
  public static final String NAME
      = "org.apache.hadoop.fs.s3a.auth.MarshalledCredentialProvider";

  private final MarshalledCredentials credentials;

  private final MarshalledCredentials.CredentialTypeRequired typeRequired;

  private final String component;

   * Constructor.
   * @param component component name for exception messages.
   * @param uri filesystem URI: must not be null.
   * @param conf configuration.
   * @param credentials marshalled credentials.
   * @param typeRequired credential type required.
   * @throws CredentialInitializationException validation failure
   * @throws IOException failure
  public MarshalledCredentialProvider(
      final String component,
      final URI uri,
      final Configuration conf,
      final MarshalledCredentials credentials,
      final MarshalledCredentials.CredentialTypeRequired typeRequired)
      throws IOException {
    super(checkNotNull(uri, "No filesystem URI"), conf);
    this.component = component;
    this.typeRequired = typeRequired;
    this.credentials = checkNotNull(credentials);

   * Perform the binding, looking up the DT and parsing it.
   * @return true if there were some credentials
   * @throws CredentialInitializationException validation failure
   * @throws IOException on a failure
  protected AWSCredentials createCredentials(final Configuration config)
      throws IOException {
    return toAWSCredentials(credentials, typeRequired, component);



hadoop 源码目录


hadoop AbstractAWSCredentialProvider 源码

hadoop AbstractSessionCredentialsProvider 源码

hadoop AssumedRoleCredentialProvider 源码

hadoop AwsSignerInitializer 源码

hadoop IAMInstanceCredentialsProvider 源码

hadoop MarshalledCredentialBinding 源码

hadoop MarshalledCredentials 源码

hadoop NoAuthWithAWSException 源码

hadoop NoAwsCredentialsException 源码

hadoop RoleModel 源码

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