Obtaining the Upload Progress (SDK for Java)
Function
You can call PutObjectRequest.setProgressListener to set a data transmission listener to obtain the upload progress of a specified object.
If you have any questions during development, post them on the Issues page of GitHub.
Restrictions
- To obtain the upload progress, you must have the obs:object:PutObject permission. For details about permission granting, see Typical Permission Control Scenarios.
- The mapping between OBS regions and endpoints must comply with what is listed in Regions and Endpoints.
- You can query the upload progress when uploading an object in streaming, file-based, multipart, appendable, or resumable mode.
- If -1 is returned for ProgressStatus.getTransferPercentage(), the object is uploaded in streaming mode and the object length (Content-Length) is not set. To obtain the upload progress, you must set Content-Length.
Method
PutObjectRequest.setProgressListener(ProgressListener progressListener)
Request parameters
| Parameter | Type | Mandatory (Yes/No) | Description |
|---|---|---|---|
| progressListener | Yes | Explanation: Data transmission listener for obtaining the upload progress. For details, see Table 2. |
| Method | Return Value Type | Mandatory (Yes/No) | Description |
|---|---|---|---|
| void | Yes | Explanation: Used for obtaining the upload progress. For details, see Table 3. |
| Parameter | Type | Mandatory (Yes/No) | Description |
|---|---|---|---|
| status | Yes | Explanation: Progress data. For details, see Table 4. |
| Method | Return Value Type | Description |
|---|---|---|
| getAverageSpeed() | double | Average upload speed, in byte/s. |
| getInstantaneousSpeed() | double | Instantaneous upload speed, in byte/s. |
| getTransferPercentage() | int | Upload progress, in percentage. |
| getNewlyTransferredBytes() | long | Number of new bytes, in bytes. |
| getTransferredBytes() | long | Number of bytes that have been transmitted, in bytes. |
| getTotalBytes() | long | Number of bytes to be transmitted, in bytes. |
Code Examples
This example returns the progress of uploading local file exampleLocalFilePath to bucket examplebucket as object objectname.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 | import com.obs.services.ObsClient; import com.obs.services.exception.ObsException; import com.obs.services.model.ProgressListener; import com.obs.services.model.ProgressStatus; import com.obs.services.model.PutObjectRequest; import java.io.File; public class PutObject005 { public static void main(String[] args) { // Obtain an AK/SK pair using environment variables or import the AK/SK pair in other ways. Using hard coding may result in leakage. // Obtain an AK/SK pair on the management console. String ak = System.getenv("ACCESS_KEY_ID"); String sk = System.getenv("SECRET_ACCESS_KEY_ID"); // (Optional) If you are using a temporary AK/SK pair and a security token to access OBS, you are advised not to use hard coding, which may result in information leakage. // Obtain an AK/SK pair and a security token using environment variables or import them in other ways. // String securityToken = System.getenv("SECURITY_TOKEN"); // Enter the endpoint corresponding to the bucket. CN-Hong Kong is used here as an example. Replace it with the one currently in use. String endPoint = "https://obs.ap-southeast-1.myhuaweicloud.com"; // Obtain an endpoint using environment variables or import it in other ways. //String endPoint = System.getenv("ENDPOINT"); // Create an ObsClient instance. // Use a permanent AK/SK pair to initialize the client. ObsClient obsClient = new ObsClient(ak, sk, endPoint); // Use a temporary AK/SK pair and security token to initialize the client. // ObsClient obsClient = new ObsClient(ak, sk, securityToken, endPoint); try { // Upload a file. PutObjectRequest request = new PutObjectRequest("examplebucket", "exampleobject"); request.setFile(new File("exampleLocalFilePath")); request.setProgressListener( new ProgressListener() { @Override public void progressChanged(ProgressStatus status) { // Obtain the average upload rate. System.out.println("AverageSpeed:" + status.getAverageSpeed()); // Obtain the upload progress in percentage. System.out.println("TransferPercentage:" + status.getTransferPercentage()); } }); // Refresh the upload progress each time 1 MB data is uploaded. request.setProgressInterval(1024 * 1024L); obsClient.putObject(request); System.out.println("putObject successfully"); } catch (ObsException e) { System.out.println("putObject failed"); // Request failed. Print the HTTP status code. System.out.println("HTTP Code:" + e.getResponseCode()); // Request failed. Print the server-side error code. System.out.println("Error Code:" + e.getErrorCode()); // Request failed. Print the error details. System.out.println("Error Message:" + e.getErrorMessage()); // Request failed. Print the request ID. System.out.println("Request ID:" + e.getErrorRequestId()); System.out.println("Host ID:" + e.getErrorHostId()); e.printStackTrace(); } catch (Exception e) { System.out.println("putObject failed"); // Print other error information. e.printStackTrace(); } } } |
import com.obs.services.ObsClient;
import com.obs.services.ObsConfiguration;
import com.obs.services.exception.ObsException;
import com.obs.services.model.ObjectMetadata;
import com.obs.services.model.ProgressListener;
import com.obs.services.model.ProgressStatus;
import com.obs.services.model.PutObjectRequest;
import java.io.File;
import java.io.FileInputStream;
public class PutObjectByInputStreamWithProgress {
public static void main(String[] args) {
// Obtain an AK/SK pair using environment variables or import the AK/SK pair in other ways. Using hard coding may result in leakage.
// Obtain an AK/SK pair on the management console.
String ak = System.getenv("ACCESS_KEY_ID");
String sk = System.getenv("SECRET_ACCESS_KEY_ID");
// (Optional) If you are using a temporary AK/SK pair and a security token to access OBS, you are advised not to use hard coding, which may result in information leakage.
// Obtain an AK/SK pair and a security token using environment variables or import them in other ways.
String securityToken = System.getenv("SECURITY_TOKEN");
// Enter the endpoint corresponding to the bucket. CN-Hong Kong is used here as an example. Replace it with the one currently in use.
// Obtain an endpoint using environment variables or import it in other ways.
// String endPoint = System.getenv("ENDPOINT");
String endPoint = "https://obs.ap-southeast-1.myhuaweicloud.com";
ObsConfiguration obsConfiguration = new ObsConfiguration();
obsConfiguration.setEndPoint(endPoint);
// Create an ObsClient instance.
ObsClient obsClient = new ObsClient(ak, sk, endPoint);
// Use a temporary AK/SK pair and security token to initialize the client.
// ObsClient obsClient = new ObsClient(ak, sk, securityToken, endPoint);
try {
String exampleBucket = "examplebucket";
String exampleObject = "objectname";
String fileToUpload = "exampleFileName";
long contentLength = new File(fileToUpload).length();
// Use try-with-resources to wrap FileInputStream to ensure that the stream is automatically closed.
try (FileInputStream fis = new FileInputStream(fileToUpload)) {
PutObjectRequest request = new PutObjectRequest(exampleBucket, exampleObject, fis);
ObjectMetadata objectMetadata = new ObjectMetadata();
// For streaming upload, the object length (Content-Length) must be set in the object properties.
// Otherwise, -1 is returned for ProgressStatus.getTransferPercentage().
objectMetadata.setContentLength(contentLength);
request.setMetadata(objectMetadata);
request.setProgressListener(
new ProgressListener() {
@Override
public void progressChanged(ProgressStatus status) {
// Obtain the average upload rate.
System.out.println("AverageSpeed:" + status.getAverageSpeed());
// Obtain the upload progress percentage.
System.out.println("TransferPercentage:" + status.getTransferPercentage());
}
});
// Refresh the upload progress each time 1 MB data is uploaded.
request.setProgressInterval(1024 * 1024L);
obsClient.putObject(request);
System.out.println("putObject successfully");
}
} catch (ObsException e) {
System.out.println("putObject failed");
// Request failed. Print the HTTP status code.
System.out.println("HTTP Code:" + e.getResponseCode());
// Request failed. Print the server-side error code.
System.out.println("Error Code:" + e.getErrorCode());
// Request failed. Print the error details.
System.out.println("Error Message:" + e.getErrorMessage());
// Request failed. Print the request ID.
System.out.println("Request ID:" + e.getErrorRequestId());
System.out.println("Host ID:" + e.getErrorHostId());
} catch (Exception e) {
System.out.println("putObject failed");
// Print other error information.
e.printStackTrace();
}
}
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