Manage lifecycle rules (Android SDK)

Usage notes

• Before you configure lifecycle rules based on the last modified time of objects, make sure that you familiarize yourself with this feature. For more information, see Lifecycle rules based on the last modified time.

• Required permissions: oss:PutBucketLifecycle to configure rules, oss:GetBucketLifecycle to query rules, and oss:DeleteBucketLifecycle to delete all lifecycle rules. Grant custom access policies to a RAM user.

• Before you run the sample code in this topic, you must create an OSSClient instance by using methods such as using a custom domain name or Security Token Service (STS). For more information, see Initialization (Android SDK).

Configure lifecycle rules

The following code configures lifecycle rules based on the last modified time for a bucket named examplebucket. You can also modify existing lifecycle rules.

PutBucketLifecycleRequest request = new PutBucketLifecycleRequest();
request.setBucketName("examplebucket");

BucketLifecycleRule rule1 = new BucketLifecycleRule();
// Set the rule ID and file prefix.
rule1.setIdentifier("1");
rule1.setPrefix("A");
// Specify whether to execute the lifecycle rule. If the value is true, OSS periodically executes the rule. If the value is false, OSS ignores the rule.
rule1.setStatus(true);
// Expire objects 200 days after the last modified time.
rule1.setDays("200");
// Transition objects to the Archive storage class after 30 days.
rule1.setArchiveDays("30");
// Expire incomplete multipart uploads after 3 days.
rule1.setMultipartDays("3");
// Transition objects to the Infrequent Access (IA) storage class after 15 days.
rule1.setIADays("15");

BucketLifecycleRule rule2 = new BucketLifecycleRule();
rule2.setIdentifier("2");
rule2.setPrefix("B");
rule2.setStatus(true);
rule2.setDays("300");
rule2.setArchiveDays("30");
rule2.setMultipartDays("3");
rule2.setIADays("15");

ArrayList<BucketLifecycleRule> lifecycleRules = new ArrayList<BucketLifecycleRule>();
lifecycleRules.add(rule1);
lifecycleRules.add(rule2);
request.setLifecycleRules(lifecycleRules);
OSSAsyncTask task = oss.asyncPutBucketLifecycle(request, new OSSCompletedCallback<PutBucketLifecycleRequest, PutBucketLifecycleResult>() {
    @Override
    public void onSuccess(PutBucketLifecycleRequest request, PutBucketLifecycleResult result) {
        OSSLog.logInfo("code::"+result.getStatusCode());

    }

    @Override
    public void onFailure(PutBucketLifecycleRequest request, ClientException clientException, ServiceException serviceException) {
        OSSLog.logError("error: "+serviceException.getRawMessage());

    }
});

task.waitUntilFinished();

Query lifecycle rules

The following code provides an example on how to query the lifecycle rules configured for the bucket named examplebucket:

GetBucketLifecycleRequest request = new GetBucketLifecycleRequest();
request.setBucketName("examplebucket");
OSSAsyncTask task = oss.asyncGetBucketLifecycle(request, new OSSCompletedCallback<GetBucketLifecycleRequest, GetBucketLifecycleResult>() {
    @Override
    public void onSuccess(GetBucketLifecycleRequest request, GetBucketLifecycleResult result) {
         ArrayList<BucketLifecycleRule> list = result.getlifecycleRules();
         for (BucketLifecycleRule rule : list){
             OSSLog.logInfo("info: " + rule.getIdentifier());
         }
    }

    @Override
    public void onFailure(GetBucketLifecycleRequest request, ClientException clientException, ServiceException serviceException) {
        OSSLog.logError("error: "+serviceException.getRawMessage());

    }
});
task.waitUntilFinished();

Delete lifecycle rules

The following code provides an example on how to clear lifecycle rules in a bucket named examplebucket. If you want to delete one or more lifecycle rules, refer to Delete lifecycle rules.

DeleteBucketLifecycleRequest request = new DeleteBucketLifecycleRequest();
request.setBucketName("examplebucket");
OSSAsyncTask task = oss.asyncDeleteBucketLifecycle(request,"examplebucket" new OSSCompletedCallback<DeleteBucketLifecycleRequest, DeleteBucketLifecycleResult>() {
    @Override
    public void onSuccess(DeleteBucketLifecycleRequest request, DeleteBucketLifecycleResult result) {
        OSSLog.logInfo("code :  "+result.getStatusCode());

    }

    @Override
    public void onFailure(DeleteBucketLifecycleRequest request, ClientException clientException, ServiceException serviceException) {
        OSSLog.logError("error: "+serviceException.getRawMessage());

    }
});
task.waitUntilFinished();

References

• Complete sample code for managing lifecycle rules: GitHub.

• API operation for configuring lifecycle rules: PutBucketLifecycle.

• API operation for querying lifecycle rules: GetBucketLifecycle.

• API operation for deleting lifecycle rules: DeleteBucketLifecycle.

• Initialize an OSSClient instance: Initialization.