Elimine las cargas multiparte incompletas a Amazon S3 mediante un AWS SDK

Para detener las cargas multiparte que estén en curso o incompletas por cualquier motivo, puede obtener una lista de las cargas y, a continuación, eliminarlas, tal y como se muestra en el siguiente ejemplo.

    /**
     * Aborts all incomplete multipart uploads from the specified S3 bucket.
     *
     * @param bucketName the name of the S3 bucket
     */
    public static void abortIncompleteMultipartUploadsFromList(String bucketName) {
        ListMultipartUploadsRequest listMultipartUploadsRequest = ListMultipartUploadsRequest.builder()
            .bucket(bucketName)
            .build();

        ListMultipartUploadsResponse response = s3Client.listMultipartUploads(listMultipartUploadsRequest);
        List<MultipartUpload> uploads = response.uploads();

        AbortMultipartUploadRequest abortMultipartUploadRequest;
        for (MultipartUpload upload : uploads) {
            abortMultipartUploadRequest = AbortMultipartUploadRequest.builder()
                .bucket(bucketName)
                .key(upload.key())
                .expectedBucketOwner(accountId)
                .uploadId(upload.uploadId())
                .build();

            AbortMultipartUploadResponse abortMultipartUploadResponse = s3Client.abortMultipartUpload(abortMultipartUploadRequest);
            if (abortMultipartUploadResponse.sdkHttpResponse().isSuccessful()) {
                logger.info("Upload ID [{}] to bucket [{}] successfully aborted.", upload.uploadId(), bucketName);
            }
        }
    }

Para eliminar las cargas multiparte incompletas que se hayan iniciado antes o después de una fecha, puede eliminar de forma selectiva las cargas multiparte en función de un momento dado, como se muestra en el siguiente ejemplo.

    /**
     * Aborts incomplete multipart uploads older than the specified point in time.
     *
     * @param bucketName  the name of the S3 bucket
     * @param pointInTime the cutoff time; uploads initiated before this are aborted
     */
    static void abortIncompleteMultipartUploadsOlderThan(String bucketName, Instant pointInTime) {
        ListMultipartUploadsRequest listMultipartUploadsRequest = ListMultipartUploadsRequest.builder()
            .bucket(bucketName)
            .build();

        ListMultipartUploadsResponse response = s3Client.listMultipartUploads(listMultipartUploadsRequest);
        List<MultipartUpload> uploads = response.uploads();

        AbortMultipartUploadRequest abortMultipartUploadRequest;
        for (MultipartUpload upload : uploads) {
            logger.info("Found multipartUpload with upload ID [{}], initiated [{}]", upload.uploadId(), upload.initiated());
            if (upload.initiated().isBefore(pointInTime)) {
                abortMultipartUploadRequest = AbortMultipartUploadRequest.builder()
                    .bucket(bucketName)
                    .key(upload.key())
                    .expectedBucketOwner(accountId)
                    .uploadId(upload.uploadId())
                    .build();

                AbortMultipartUploadResponse abortMultipartUploadResponse = s3Client.abortMultipartUpload(abortMultipartUploadRequest);
                if (abortMultipartUploadResponse.sdkHttpResponse().isSuccessful()) {
                    logger.info("Upload ID [{}] to bucket [{}] successfully aborted.", upload.uploadId(), bucketName);
                }
            }
        }
    }

Si tiene acceso al ID de carga después de iniciar una carga multiparte, puede eliminar la carga en curso utilizando ese ID.

    /**
     * Aborts a multipart upload using the upload ID.
     *
     * @param bucketName the name of the S3 bucket
     * @param key        the object key
     */
    static void abortMultipartUploadUsingUploadId(String bucketName, String key) {
        String uploadId = startUploadReturningUploadId(bucketName, key);
        AbortMultipartUploadResponse response = s3Client.abortMultipartUpload(b -> b
            .uploadId(uploadId)
            .bucket(bucketName)
            .key(key));

        if (response.sdkHttpResponse().isSuccessful()) {
            logger.info("Upload ID [{}] to bucket [{}] successfully aborted.", uploadId, bucketName);
        }
    }

Para eliminar de forma sistemática las cargas multiparte incompletas que tengan más de un número determinado de días, establezca una configuración de ciclo de vida de bucket para el bucket. En el siguiente ejemplo, se muestra cómo crear una regla para eliminar cargas incompletas que tienen más de 7 días.

    /**
     * Configures a lifecycle rule to abort incomplete multipart uploads after 7 days.
     *
     * @param bucketName the name of the S3 bucket
     */
    static void abortMultipartUploadsUsingLifecycleConfig(String bucketName) {
        Collection<LifecycleRule> lifeCycleRules = List.of(LifecycleRule.builder()
            .abortIncompleteMultipartUpload(b -> b.
                daysAfterInitiation(7))
            .status("Enabled")
            .filter(SdkBuilder::build) // Filter element is required.
            .build());

        PutBucketLifecycleConfigurationResponse response = s3Client.putBucketLifecycleConfiguration(b -> b
            .bucket(bucketName)
            .lifecycleConfiguration(b1 -> b1.rules(lifeCycleRules)));

        if (response.sdkHttpResponse().isSuccessful()) {
            logger.info("Rule to abort incomplete multipart uploads added to bucket.");
        } else {
            logger.error("Unsuccessfully applied rule. HTTP status code is [{}]", response.sdkHttpResponse().statusCode());
        }
    }