Use CopyObject with an Amazon SDK

Copy an object from a directory bucket to a directory bucket.

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.s3.S3Client;
import software.amazon.awssdk.services.s3.model.CopyObjectRequest;
import software.amazon.awssdk.services.s3.model.CopyObjectResponse;
import software.amazon.awssdk.services.s3.model.S3Exception;

import java.nio.file.Path;

import static com.example.s3.util.S3DirectoryBucketUtils.createDirectoryBucket;
import static com.example.s3.util.S3DirectoryBucketUtils.createS3Client;
import static com.example.s3.util.S3DirectoryBucketUtils.deleteAllObjectsInDirectoryBucket;
import static com.example.s3.util.S3DirectoryBucketUtils.deleteDirectoryBucket;
import static com.example.s3.util.S3DirectoryBucketUtils.getFilePath;
import static com.example.s3.util.S3DirectoryBucketUtils.putDirectoryBucketObject;

    /**
     * Copies an object from one S3 general purpose bucket to one S3 directory
     * bucket.
     *
     * @param s3Client     The S3 client used to interact with S3
     * @param sourceBucket The name of the source bucket
     * @param objectKey    The key (name) of the object to be copied
     * @param targetBucket The name of the target bucket
     */
    public static void copyDirectoryBucketObject(S3Client s3Client, String sourceBucket, String objectKey,
            String targetBucket) {
        logger.info("Copying object: {} from bucket: {} to bucket: {}", objectKey, sourceBucket, targetBucket);

        try {
            // Create a CopyObjectRequest
            CopyObjectRequest copyReq = CopyObjectRequest.builder()
                    .sourceBucket(sourceBucket)
                    .sourceKey(objectKey)
                    .destinationBucket(targetBucket)
                    .destinationKey(objectKey)
                    .build();

            // Copy the object
            CopyObjectResponse copyRes = s3Client.copyObject(copyReq);
            logger.info("Successfully copied {} from bucket {} into bucket {}. CopyObjectResponse: {}",
                    objectKey, sourceBucket, targetBucket, copyRes.copyObjectResult().toString());

        } catch (S3Exception e) {
            logger.error("Failed to copy object: {} - Error code: {}", e.awsErrorDetails().errorMessage(),
                    e.awsErrorDetails().errorCode(), e);
            throw e;
        }
    }