Github user budde commented on a diff in the pull request: https://github.com/apache/spark/pull/16744#discussion_r102351716 --- Diff: external/kinesis-asl/src/main/scala/org/apache/spark/streaming/kinesis/SerializableCredentialsProvider.scala --- @@ -0,0 +1,85 @@ +/* + * 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.spark.streaming.kinesis + +import scala.collection.JavaConverters._ + +import com.amazonaws.auth._ + +import org.apache.spark.internal.Logging + +/** + * Serializable interface providing a method executors can call to obtain an + * AWSCredentialsProvider instance for authenticating to AWS services. + */ +private[kinesis] sealed trait SerializableCredentialsProvider extends Serializable { + /** + * Return an AWSCredentialProvider instance that can be used by the Kinesis Client + * Library to authenticate to AWS services (Kinesis, CloudWatch and DynamoDB). + */ + def provider: AWSCredentialsProvider +} + +/** Returns DefaultAWSCredentialsProviderChain for authentication. */ +private[kinesis] final case object DefaultCredentialsProvider + extends SerializableCredentialsProvider { + + def provider: AWSCredentialsProvider = new DefaultAWSCredentialsProviderChain +} + +/** + * Returns AWSStaticCredentialsProvider constructed using basic AWS keypair. Falls back to using + * DefaultAWSCredentialsProviderChain if unable to construct a AWSCredentialsProviderChain + * instance with the provided arguments (e.g. if they are null). + */ +private[kinesis] final case class BasicCredentialsProvider( + awsAccessKeyId: String, + awsSecretKey: String) extends SerializableCredentialsProvider with Logging { + + def provider: AWSCredentialsProvider = try { + new AWSStaticCredentialsProvider(new BasicAWSCredentials(awsAccessKeyId, awsSecretKey)) + } catch { + case _: IllegalArgumentException => --- End diff -- I can add the exception to the log message if you think it's appropriate
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