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The AWS Java SDK for Amazon S3 module holds the client classes that are used for communicating with Amazon Simple Storage Service

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/*
 * Copyright 2015-2024 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *  http://aws.amazon.com/apache2.0
 *
 * or in the "license" file accompanying this file. This file 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 com.amazonaws.services.s3.internal;

import com.amazonaws.internal.SdkPredicate;
import com.amazonaws.services.s3.model.AmazonS3Exception;

/**
 * Complete Multipart Upload API returns a 2xx
 * success response with an Error xml in the body. Some of these errors
 * can be retried as per the API documentation {@see http://docs.aws.amazon.com/AmazonS3/latest/API/mpUploadComplete.html}
 *
 * This predicate analyzes the exception and returns true if the exception
 * can be retried.
 *
 * 
 * A sample success response with Error response Xml in body:
 * 
 * HTTP/1.1 200 OK
 * x-amz-id-2: Uuag1LuByRx9e6j5Onimru9pO4ZVKnJ2Qz7/C1NPcfTWAtRPfTaOFg==
 * x-amz-request-id: 656c76696e6727732072657175657374
 * Date:  Mon, 1 Nov 2010 20:34:56 GMT
 * Connection: close
 * Server: AmazonS3
 *
 * 
 * 
 * InternalError
 * We encountered an internal error. Please try again.
 * 656c76696e6727732072657175657374
 * Uuag1LuByRx9e6j5Onimru9pO4ZVKnJ2Qz7/C1NPcfTWAtRPfTaOFg==
 * 
 */
public class CompleteMultipartUploadRetryablePredicate extends SdkPredicate {

    private static final String ERROR_CODE = "InternalError";
    private static final String RETYABLE_ERROR_MESSAGE = "Please try again.";

    @Override
    public boolean test(AmazonS3Exception exception) {

        if (exception == null || exception.getErrorCode() == null ||
                exception.getErrorMessage() == null) {
            return false;
        }

        return exception.getErrorCode().contains(ERROR_CODE) &&
                exception.getErrorMessage().contains(RETYABLE_ERROR_MESSAGE);
    }
}