Melacak unggahan multipart dengan AWS SDKs - Amazon Simple Storage Service

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Melacak unggahan multipart dengan AWS SDKs

Anda dapat melacak kemajuan unggahan objek ke Amazon S3 dengan antarmuka mendengarkan. Unggahan multibagian tingkat tinggi API menyediakan antarmuka mendengarkan seperti itu, yang disebut. ProgressListener Peristiwa progres secara berkala memberi tahu pendengar bahwa byte telah ditransfer. Untuk informasi lebih umum tentang unggahan multipart, lihat. Mengunggah dan menyalin objek menggunakan unggahan multibagian

Untuk end-to-end prosedur mengunggah objek dengan unggahan multipart dengan checksum tambahan, lihat. Tutorial: Unggah objek melalui unggahan multipart dan verifikasi integritas datanya

Bagian berikut menunjukkan cara melacak unggahan multipart dengan file. AWS SDKs

Java
TransferManager tm = new TransferManager(new ProfileCredentialsProvider());        

PutObjectRequest request = new PutObjectRequest(
  		existingBucketName, keyName, new File(filePath));

// Subscribe to the event and provide event handler.        
request.setProgressListener(new ProgressListener() {
			public void progressChanged(ProgressEvent event) {
				System.out.println("Transferred bytes: " + 
						event.getBytesTransfered());
             }
});
contoh

Kode Java berikut mengunggah file dan menggunakan ProgressListener untuk melacak kemajuan unggahan. Untuk petunjuk tentang cara membuat dan menguji sampel kerja, lihat Memulai di Panduan AWS SDK for Java Pengembang. 

import java.io.File;

import com.amazonaws.AmazonClientException;
import com.amazonaws.auth.profile.ProfileCredentialsProvider;
import com.amazonaws.event.ProgressEvent;
import com.amazonaws.event.ProgressListener;
import com.amazonaws.services.s3.model.PutObjectRequest;
import com.amazonaws.services.s3.transfer.TransferManager;
import com.amazonaws.services.s3.transfer.Upload;

public class TrackMPUProgressUsingHighLevelAPI {

    public static void main(String[] args) throws Exception {
        String existingBucketName = "*** Provide bucket name ***";
        String keyName            = "*** Provide object key ***";
        String filePath           = "*** file to upload ***";  
        
        TransferManager tm = new TransferManager(new ProfileCredentialsProvider());        

        // For more advanced uploads, you can create a request object 
        // and supply additional request parameters (ex: progress listeners,
        // canned ACLs, etc.)
        PutObjectRequest request = new PutObjectRequest(
        		existingBucketName, keyName, new File(filePath));
        
        // You can ask the upload for its progress, or you can 
        // add a ProgressListener to your request to receive notifications 
        // when bytes are transferred.
        request.setGeneralProgressListener(new ProgressListener() {
			@Override
			public void progressChanged(ProgressEvent progressEvent) {
				System.out.println("Transferred bytes: " + 
						progressEvent.getBytesTransferred());
			}
		});

        // TransferManager processes all transfers asynchronously, 
        // so this call will return immediately.
        Upload upload = tm.upload(request);
        
        try {
        	// You can block and wait for the upload to finish
        	upload.waitForCompletion();
        } catch (AmazonClientException amazonClientException) {
        	System.out.println("Unable to upload file, upload aborted.");
        	amazonClientException.printStackTrace();
        }
    }
}
.NET

Contoh C# berikut ini menampilkan mengunggah sebuah file ke sebuah bucket S3 menggunakan kelas TransferUtility, dan melacak progres unggahan. 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.Transfer;
using System;
using System.Threading.Tasks;

namespace Amazon.DocSamples.S3
{
    class TrackMPUUsingHighLevelAPITest
    {
        private const string bucketName = "*** provide the bucket name ***";
        private const string keyName = "*** provide the name for the uploaded object ***";
        private const string filePath = " *** provide the full path name of the file to upload **";
        // 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);
            TrackMPUAsync().Wait();
        }

        private static async Task TrackMPUAsync()
        {
            try
            {
                var fileTransferUtility = new TransferUtility(s3Client);

                // Use TransferUtilityUploadRequest to configure options.
                // In this example we subscribe to an event.
                var uploadRequest =
                    new TransferUtilityUploadRequest
                    {
                        BucketName = bucketName,
                        FilePath = filePath,
                        Key = keyName
                    };

                uploadRequest.UploadProgressEvent +=
                    new EventHandler<UploadProgressArgs>
                        (uploadRequest_UploadPartProgressEvent);

                await fileTransferUtility.UploadAsync(uploadRequest);
                Console.WriteLine("Upload completed");
            }
            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);
            }
        }

        static void uploadRequest_UploadPartProgressEvent(object sender, UploadProgressArgs e)
        {
            // Process event.
            Console.WriteLine("{0}/{1}", e.TransferredBytes, e.TotalBytes);
        }
    }
}