Gunakan UploadPartCopy dengan AWS SDK

PDF

Contoh kode berikut menunjukkan cara menggunakanUploadPartCopy.

Java

SDK untuk Java 2.x

catatan

Ada lebih banyak tentang GitHub. Temukan contoh lengkapnya dan pelajari cara pengaturan dan menjalankannya di Repositori Contoh Kode AWS.

Buat salinan bagian berdasarkan ukuran objek sumber dan salin bagian individual ke ember direktori.

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.CompletedPart;
import software.amazon.awssdk.services.s3.model.HeadObjectRequest;
import software.amazon.awssdk.services.s3.model.HeadObjectResponse;
import software.amazon.awssdk.services.s3.model.S3Exception;
import software.amazon.awssdk.services.s3.model.UploadPartCopyRequest;
import software.amazon.awssdk.services.s3.model.UploadPartCopyResponse;

import java.io.IOException;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.List;

import static com.example.s3.util.S3DirectoryBucketUtils.abortDirectoryBucketMultipartUploads;
import static com.example.s3.util.S3DirectoryBucketUtils.completeDirectoryBucketMultipartUpload;
import static com.example.s3.util.S3DirectoryBucketUtils.createDirectoryBucket;
import static com.example.s3.util.S3DirectoryBucketUtils.createDirectoryBucketMultipartUpload;
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.multipartUploadForDirectoryBucket;

    /**
     * Creates copy parts based on source object size and copies over individual
     * parts.
     *
     * @param s3Client          The S3 client used to interact with S3
     * @param sourceBucket      The name of the source bucket
     * @param sourceKey         The key (name) of the source object
     * @param destinationBucket The name of the destination bucket
     * @param destinationKey    The key (name) of the destination object
     * @param uploadId          The upload ID used to track the multipart upload
     * @return A list of completed parts
     */
    public static List<CompletedPart> multipartUploadCopyForDirectoryBucket(S3Client s3Client, String sourceBucket,
            String sourceKey, String destinationBucket, String destinationKey, String uploadId) {
        // Get the object size to track the end of the copy operation
        HeadObjectRequest headObjectRequest = HeadObjectRequest.builder()
                .bucket(sourceBucket)
                .key(sourceKey)
                .build();
        HeadObjectResponse headObjectResponse = s3Client.headObject(headObjectRequest);
        long objectSize = headObjectResponse.contentLength();

        logger.info("Source Object size: {}", objectSize);

        // Copy the object using 20 MB parts
        long partSize = 20 * 1024 * 1024; // 20 MB
        long bytePosition = 0;
        int partNum = 1;
        List<CompletedPart> uploadedParts = new ArrayList<>();

        while (bytePosition < objectSize) {
            long lastByte = Math.min(bytePosition + partSize - 1, objectSize - 1);
            logger.info("Part Number: {}, Byte Position: {}, Last Byte: {}", partNum, bytePosition, lastByte);

            try {
                UploadPartCopyRequest uploadPartCopyRequest = UploadPartCopyRequest.builder()
                        .sourceBucket(sourceBucket)
                        .sourceKey(sourceKey)
                        .destinationBucket(destinationBucket)
                        .destinationKey(destinationKey)
                        .uploadId(uploadId)
                        .copySourceRange("bytes=" + bytePosition + "-" + lastByte)
                        .partNumber(partNum)
                        .build();
                UploadPartCopyResponse uploadPartCopyResponse = s3Client.uploadPartCopy(uploadPartCopyRequest);

                CompletedPart part = CompletedPart.builder()
                        .partNumber(partNum)
                        .eTag(uploadPartCopyResponse.copyPartResult().eTag())
                        .build();
                uploadedParts.add(part);

                bytePosition += partSize;
                partNum++;
            } catch (S3Exception e) {
                logger.error("Failed to copy part number {}: {} - Error code: {}", partNum,
                        e.awsErrorDetails().errorMessage(), e.awsErrorDetails().errorCode());
                throw e;
            }
        }

        return uploadedParts;
    }

• Untuk detail API, lihat UploadPartCopydi Referensi AWS SDK for Java 2.x API.