Menyalin, memindahkan, dan mengganti nama objek

Contoh C # berikut menggunakan tingkat tinggi AWS SDK for .NET untuk menyalin objek yang sebesar 5 GB dalam satu operasi. Untuk objek yang lebih besar dari 5 GB, gunakan contoh salinan unggahan multibagian yang dijelaskan dalam Menyalin objek menggunakan unggahan multibagian.

Contoh ini menampilkan pembuatan salinan objek yang berukuran maksimum sebesar 5 GB. Untuk informasi tentang menyiapkan dan menjalankan contoh kode, lihat Memulai dengan AWS SDK for. NETdi AWS SDKuntuk. NETPanduan Pengembang.

using Amazon;
using Amazon.S3;
using Amazon.S3.Model;
using System;
using System.Threading.Tasks;

namespace Amazon.DocSamples.S3
{
    class CopyObjectTest
    {
        private const string sourceBucket = "*** provide the name of the bucket with source object ***";
        private const string destinationBucket = "*** provide the name of the bucket to copy the object to ***";
        private const string objectKey = "*** provide the name of object to copy ***";
        private const string destObjectKey = "*** provide the destination object key name ***";
        // Specify your bucket region (an example region is shown).
        private static readonly RegionEndpoint bucketRegion = RegionEndpoint.USWest2; 
        private static IAmazonS3 s3Client;

        public static void Main()
        {
            s3Client = new AmazonS3Client(bucketRegion);
            Console.WriteLine("Copying an object");
            CopyingObjectAsync().Wait();
        }

        private static async Task CopyingObjectAsync()
        {
            try
            {
                CopyObjectRequest request = new CopyObjectRequest
                {
                    SourceBucket = sourceBucket,
                    SourceKey = objectKey,
                    DestinationBucket = destinationBucket,
                    DestinationKey = destObjectKey
                };
                CopyObjectResponse response = await s3Client.CopyObjectAsync(request);
            }
            catch (AmazonS3Exception e)
            {
                Console.WriteLine("Error encountered on server. Message:'{0}' when writing an object", e.Message);
            }
            catch (Exception e)
            {
                Console.WriteLine("Unknown encountered on server. Message:'{0}' when writing an object", e.Message);
            }
        }
    }
}

Topik ini memandu Anda menggunakan kelas dari versi 3 AWS SDK for PHP untuk menyalin satu objek dan beberapa objek dalam Amazon S3, dari satu bucket ke bucket lainnya atau dalam bucket yang sama.

Untuk informasi lebih lanjut tentang AWS SDK untuk RubyAPI, buka AWS SDKuntuk Ruby - Versi 2.

PHPContoh berikut menggambarkan penggunaan copyObject() metode untuk menyalin satu objek dalam Amazon S3. Hal ini juga menunjukkan bagaimana untuk membuat beberapa salinan dari sebuah objek dengan menggunakan batch panggilan ke CopyObject dengan getcommand() metode.

 require 'vendor/autoload.php';

use Aws\CommandPool;
use Aws\Exception\AwsException;
use Aws\ResultInterface;
use Aws\S3\S3Client;

$sourceBucket = '*** Your Source Bucket Name ***';
$sourceKeyname = '*** Your Source Object Key ***';
$targetBucket = '*** Your Target Bucket Name ***';

$s3 = new S3Client([
    'version' => 'latest',
    'region' => 'us-east-1'
]);

// Copy an object.
$s3->copyObject([
    'Bucket' => $targetBucket,
    'Key' => "$sourceKeyname-copy",
    'CopySource' => "$sourceBucket/$sourceKeyname",
]);

// Perform a batch of CopyObject operations.
$batch = array();
for ($i = 1; $i <= 3; $i++) {
    $batch[] = $s3->getCommand('CopyObject', [
        'Bucket' => $targetBucket,
        'Key' => "{targetKeyname}-$i",
        'CopySource' => "$sourceBucket/$sourceKeyname",
    ]);
}
try {
    $results = CommandPool::batch($s3, $batch);
    foreach ($results as $result) {
        if ($result instanceof ResultInterface) {
            // Result handling here
        }
        if ($result instanceof AwsException) {
            // AwsException handling here
        }
    }
} catch (Exception $e) {
    // General error handling here
}

class ObjectWrapper:
    """Encapsulates S3 object actions."""

    def __init__(self, s3_object):
        """
        :param s3_object: A Boto3 Object resource. This is a high-level resource in Boto3
                          that wraps object actions in a class-like structure.
        """
        self.object = s3_object
        self.key = self.object.key

    def copy(self, dest_object):
        """
        Copies the object to another bucket.

        :param dest_object: The destination object initialized with a bucket and key.
                            This is a Boto3 Object resource.
        """
        try:
            dest_object.copy_from(
                CopySource={"Bucket": self.object.bucket_name, "Key": self.object.key}
            )
            dest_object.wait_until_exists()
            logger.info(
                "Copied object from %s:%s to %s:%s.",
                self.object.bucket_name,
                self.object.key,
                dest_object.bucket_name,
                dest_object.key,
            )
        except ClientError:
            logger.exception(
                "Couldn't copy object from %s/%s to %s/%s.",
                self.object.bucket_name,
                self.object.key,
                dest_object.bucket_name,
                dest_object.key,
            )
            raise

Tugas-tugas berikut memandu Anda melalui penggunaan Ruby class untuk menyalin objek di Amazon S3 dari satu bucket ke bucket lainnya atau dalam bucket yang sama.

Berikut ini Ruby contoh kode menunjukkan tugas-tugas sebelumnya dengan menggunakan #copy_object metode untuk menyalin objek dari satu ember ke ember lainnya.

require 'aws-sdk-s3'

# Wraps Amazon S3 object actions.
class ObjectCopyWrapper
  attr_reader :source_object

  # @param source_object [Aws::S3::Object] An existing Amazon S3 object. This is used as the source object for
  #                                        copy actions.
  def initialize(source_object)
    @source_object = source_object
  end

  # Copy the source object to the specified target bucket and rename it with the target key.
  #
  # @param target_bucket [Aws::S3::Bucket] An existing Amazon S3 bucket where the object is copied.
  # @param target_object_key [String] The key to give the copy of the object.
  # @return [Aws::S3::Object, nil] The copied object when successful; otherwise, nil.
  def copy_object(target_bucket, target_object_key)
    @source_object.copy_to(bucket: target_bucket.name, key: target_object_key)
    target_bucket.object(target_object_key)
  rescue Aws::Errors::ServiceError => e
    puts "Couldn't copy #{@source_object.key} to #{target_object_key}. Here's why: #{e.message}"
  end
end

# Example usage:
def run_demo
  source_bucket_name = "amzn-s3-demo-bucket1"
  source_key = "my-source-file.txt"
  target_bucket_name = "amzn-s3-demo-bucket2"
  target_key = "my-target-file.txt"

  source_bucket = Aws::S3::Bucket.new(source_bucket_name)
  wrapper = ObjectCopyWrapper.new(source_bucket.object(source_key))
  target_bucket = Aws::S3::Bucket.new(target_bucket_name)
  target_object = wrapper.copy_object(target_bucket, target_key)
  return unless target_object

  puts "Copied #{source_key} from #{source_bucket_name} to #{target_object.bucket_name}:#{target_object.key}."
end

run_demo if $PROGRAM_NAME == __FILE__