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UploadPartCopy 搭配 AWS SDK 使用 - AWS SDK 程式碼範例

文件 AWS 開發套件範例 GitHub 儲存庫中有更多可用的 AWS SDK 範例

本文為英文版的機器翻譯版本,如內容有任何歧義或不一致之處,概以英文版為準。

文件 AWS 開發套件範例 GitHub 儲存庫中有更多可用的 AWS SDK 範例

本文為英文版的機器翻譯版本,如內容有任何歧義或不一致之處,概以英文版為準。

UploadPartCopy 搭配 AWS SDK 使用

下列程式碼範例示範如何使用 UploadPartCopy

Java
SDK for Java 2.x
注意

GitHub 上提供更多範例。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫中設定和執行。

根據來源物件大小建立複製組件,並將個別組件複製到目錄儲存貯體。

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; }
  • 如需 API 詳細資訊,請參閱 AWS SDK for Java 2.x API 參考中的 UploadPartCopy

SDK for Java 2.x
注意

GitHub 上提供更多範例。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫中設定和執行。

根據來源物件大小建立複製組件,並將個別組件複製到目錄儲存貯體。

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; }
  • 如需 API 詳細資訊,請參閱 AWS SDK for Java 2.x API 參考中的 UploadPartCopy

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