Configuring Lifecycle Management

If you have any questions during development, post them on the Issues page of GitHub. For details about parameters and usage of each API, see the .

When uploading an object or initializing a multipart upload, you can directly set the expiration time for the object. Sample code is as follows:

// Hard-coded or plaintext AK/SK are risky. For security purposes, encrypt your AK/SK and store them in the configuration file or environment variables. In this example, the AK/SK are stored in environment variables for identity authentication. Before running this example, configure environment variables ACCESS_KEY_ID and SECRET_ACCESS_KEY_ID.
// Obtain an AK/SK pair on the management console. For details, see https://support.huaweicloud.com/eu/usermanual-ca/ca_01_0003.html.
String ak = System.getenv("ACCESS_KEY_ID");
String sk = System.getenv("SECRET_ACCESS_KEY_ID");
String endPoint = "https://your-endpoint";
// Create an instance of ObsClient.
ObsClient obsClient = new ObsClient(ak, sk, endPoint);
 try {
      PutObjectRequest request = new PutObjectRequest();
      request.setBucketName("examplebucket");
      request.setObjectKey("objectname");
      request.setFile(new File("localfile"));
      // When uploading an object, configure it to expire 30 days after being uploaded.
      request.setExpires(30);
      obsClient.putObject(request);
      // InitiateMultipartUploadRequest request2 = new InitiateMultipartUploadRequest("bucketname", "objectname"); 
      //// When initiating a multipart upload, configure the object to expire 60 days after being created from part assembling.
      // request2.setExpires(60); 
      //obsClient.initiateMultipartUpload(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 details.
      e.printStackTrace();
  }

• This mode specifies the time duration in days after which an object will expire. The OBS server automatically clears expired objects.
• The object expiration time set in this mode takes precedence over the bucket lifecycle rule.