Object Storage Service:Lifecycle rules based on the last access time

import com.aliyun.oss.*;
import com.aliyun.oss.common.auth.*;
import com.aliyun.oss.common.comm.SignVersion;
import com.aliyun.oss.model.*;
import java.util.ArrayList;
import java.util.List;

public class Demo {

    public static void main(String[] args) throws Exception {
        // In this example, the endpoint of the China (Hangzhou) region is used. Specify your actual endpoint. 
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. 
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // Specify the name of the bucket. Example: examplebucket. 
        String bucketName = "examplebucket";
        // Specify the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the region to cn-hangzhou.
        String region = "cn-hangzhou";

        // Create an OSSClient instance. 
        // Call the shutdown method to release resources when the OSSClient is no longer in use.
        ClientBuilderConfiguration clientBuilderConfiguration = new ClientBuilderConfiguration();
        clientBuilderConfiguration.setSignatureVersion(SignVersion.V4);        
        OSS ossClient = OSSClientBuilder.create()
        .endpoint(endpoint)
        .credentialsProvider(credentialsProvider)
        .clientConfiguration(clientBuilderConfiguration)
        .region(region)               
        .build();

        try {
            ossClient.putBucketAccessMonitor(bucketName, AccessMonitor.AccessMonitorStatus.Enabled.toString());
            // Create a lifecycle rule and set the ID to rule1. Specify that the storage classes of objects whose names contain the logs prefix and whose size is less than or equal to 64 KB are changed to IA 30 days after the objects are last accessed. In addition, specify that the objects whose name contain the logs prefix are still stored as IA objects when the objects are accessed again. 
            LifecycleRule lifecycleRule = new LifecycleRule("rule1", "logs", LifecycleRule.RuleStatus.Enabled);
            List<LifecycleRule> lifecycleRuleList = new ArrayList<LifecycleRule>();
            SetBucketLifecycleRequest setBucketLifecycleRequest = new SetBucketLifecycleRequest(bucketName);

            LifecycleRule.StorageTransition storageTransition = new LifecycleRule.StorageTransition();
            storageTransition.setStorageClass(StorageClass.IA);
            storageTransition.setExpirationDays(30);
            storageTransition.setIsAccessTime(true);
            storageTransition.setReturnToStdWhenVisit(false);
            storageTransition.setAllowSmallFile(true);
            List<LifecycleRule.StorageTransition> storageTransitionList = new ArrayList<LifecycleRule.StorageTransition>();
            storageTransitionList.add(storageTransition);
            lifecycleRule.setStorageTransition(storageTransitionList);
            lifecycleRuleList.add(lifecycleRule);
            
            // Create a lifecycle rule and set the ID to rule2. Specify that the previous versions of the objects whose names contain the dir prefix and whose size is greater than 64 KB are changed to IA 10 days after the objects are last accessed. In addition, specify that the storage classes of the objects whose names contain the dir prefix are changed to Standard when the objects are accessed again. 
            LifecycleRule lifecycleRule2 = new LifecycleRule("rule2", "dir", LifecycleRule.RuleStatus.Enabled);
            LifecycleRule.NoncurrentVersionStorageTransition noncurrentVersionStorageTransition = new LifecycleRule.NoncurrentVersionStorageTransition();
            noncurrentVersionStorageTransition.setStorageClass(StorageClass.IA);
            noncurrentVersionStorageTransition.setNoncurrentDays(10);
            noncurrentVersionStorageTransition.setIsAccessTime(true);
            noncurrentVersionStorageTransition.setReturnToStdWhenVisit(true);
            noncurrentVersionStorageTransition.setAllowSmallFile(false);

            List<LifecycleRule.NoncurrentVersionStorageTransition> noncurrentVersionStorageTransitionList = new ArrayList<LifecycleRule.NoncurrentVersionStorageTransition>();
            noncurrentVersionStorageTransitionList.add(noncurrentVersionStorageTransition);
            lifecycleRule2.setNoncurrentVersionStorageTransitions(noncurrentVersionStorageTransitionList);
            lifecycleRuleList.add(lifecycleRule2);

            setBucketLifecycleRequest.setLifecycleRules(lifecycleRuleList);

            // Configure the lifecycle rules. 
            ossClient.setBucketLifecycle(setBucketLifecycleRequest);
        } catch (OSSException oe) {
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
            }
        }
    }
}

import argparse
import datetime
import alibabacloud_oss_v2 as oss

parser = argparse.ArgumentParser(description="put bucket lifecycle sample")
parser.add_argument('--region', help='The region in which the bucket is located.', required=True)
parser.add_argument('--bucket', help='The name of the bucket.', required=True)
parser.add_argument('--endpoint', help='The domain names that other services can use to access OSS')

def main():
  args = parser.parse_args()
  credentials_provider = oss.credentials.EnvironmentVariableCredentialsProvider()
  cfg = oss.config.load_default()
  cfg.credentials_provider = credentials_provider
  cfg.region = args.region
  if args.endpoint is not None:
    cfg.endpoint = args.endpoint
  client = oss.Client(cfg)

  result = client.put_bucket_lifecycle(oss.PutBucketLifecycleRequest(
    bucket=args.bucket,
    lifecycle_configuration=oss.LifecycleConfiguration(
      rules=[
        oss.LifecycleRule(
          id='rule1',
          status='Enabled',
          prefix='data/',
          transitions=[oss.LifecycleRuleTransition(
            days=200,
            storage_class=oss.StorageClassType.IA,
            is_access_time=True,
            return_to_std_when_visit=False
          )]
        ),
        oss.LifecycleRule(
          id='rule2',
          status='Enabled',
          prefix='log/',
          transitions=[
            oss.LifecycleRuleTransition(
              days=120,
              storage_class=oss.StorageClassType.IA,
              is_access_time=True,
              return_to_std_when_visit=False
            ),
            oss.LifecycleRuleTransition(
              days=250,
              storage_class=oss.StorageClassType.ARCHIVE
              # If is_access_time is not set, the rule is based on the last modified time by default.
            )
          ]
        )
      ]
    )
  ))

  print(f'status code: {result.status_code}, '
        f'request id: {result.request_id}')

if __name__ == "__main__":
  main()

package main

import (
	"context"
	"flag"
	"log"

	"github.com/aliyun/alibabacloud-oss-go-sdk-v2/oss"
	"github.com/aliyun/alibabacloud-oss-go-sdk-v2/oss/credentials"
)

// Define global variables.
var (
	region     string // The region where the bucket is located.
	bucketName string // The name of the bucket.
)

// The init function initializes command-line arguments.
func init() {
	flag.StringVar(&region, "region", "", "The region in which the bucket is located.")
	flag.StringVar(&bucketName, "bucket", "", "The name of the bucket.")
}

func main() {
	// Parse command-line arguments.
	flag.Parse()

	// Check if the bucket name is provided.
	if len(bucketName) == 0 {
		flag.PrintDefaults()
		log.Fatalf("invalid parameters, bucket name required")
	}

	// Check if the region is provided.
	if len(region) == 0 {
		flag.PrintDefaults()
		log.Fatalf("invalid parameters, region required")
	}

	// Load the default configuration, and set the credentials provider and region.
	cfg := oss.LoadDefaultConfig().
		WithCredentialsProvider(credentials.NewEnvironmentVariableCredentialsProvider()).
		WithRegion(region)

	// Create an OSS client.
	client := oss.NewClient(cfg)

	// Create a request to set lifecycle rules for the bucket.
	request := &oss.PutBucketLifecycleRequest{
		Bucket: oss.Ptr(bucketName), // The name of the bucket.
		LifecycleConfiguration: &oss.LifecycleConfiguration{
			Rules: []oss.LifecycleRule{
				{
					// In lifecycle rule "rule1", transition all objects with the prefix "data/"
					// to the Infrequent Access (IA) storage class 200 days after they are last accessed.
					// When these objects are accessed again, they remain in the IA storage class.
					ID:     oss.Ptr("rule1"),
					Status: oss.Ptr("Enabled"),
					Prefix: oss.Ptr("data/"),
					Transitions: []oss.LifecycleRuleTransition{
						{
							Days:                 oss.Ptr(int32(200)),
							StorageClass:         oss.StorageClassIA,
							IsAccessTime:         oss.Ptr(true), // Set to true for a rule based on last access time.
							ReturnToStdWhenVisit: oss.Ptr(false),
						},
					},
				},
				{
					// In lifecycle rule "rule2", transition all objects with the prefix "log/"
					// to the Infrequent Access (IA) storage class 120 days after they are last accessed.
					// When these objects are accessed again, they remain in the IA storage class.
					// A single rule cannot contain more than one IsAccessTime=true Transition.
					// The 250-day Archive transition is configured in a separate rule (rule3) below.
					ID:     oss.Ptr("rule2"),
					Status: oss.Ptr("Enabled"),
					Prefix: oss.Ptr("log/"),
					Transitions: []oss.LifecycleRuleTransition{
						{
							Days:                 oss.Ptr(int32(120)),
							StorageClass:         oss.StorageClassIA,
							IsAccessTime:         oss.Ptr(true), // Set to true for a rule based on last access time.
							ReturnToStdWhenVisit: oss.Ptr(false),
						},
					},
				},
				{
					// In lifecycle rule "rule3", transition all objects with the prefix "log/"
					// to the Archive storage class 250 days after they are last accessed.
					// When these objects are accessed again, they remain in the Archive storage class.
					// This rule is separate from rule2 because a single rule cannot contain
					// more than one IsAccessTime=true Transition.
					ID:     oss.Ptr("rule3"),
					Status: oss.Ptr("Enabled"),
					Prefix: oss.Ptr("log/"),
					Transitions: []oss.LifecycleRuleTransition{
						{
							Days:                 oss.Ptr(int32(250)),
							StorageClass:         oss.StorageClassArchive,
							IsAccessTime:         oss.Ptr(true), // Set to true for a rule based on last access time.
							ReturnToStdWhenVisit: oss.Ptr(false),
						},
					},
				},
			},
		},
	}

	// Set the lifecycle rules for the bucket.
	result, err := client.PutBucketLifecycle(context.TODO(), request)
	if err != nil {
		log.Fatalf("failed to put bucket lifecycle %v", err)
	}

	// Print the result of setting the lifecycle rules.
	log.Printf("put bucket lifecycle result:%#v\n", result)
}

<?php

// Include the autoload file to load dependencies.
require_once __DIR__ . '/../vendor/autoload.php';

use AlibabaCloud\Oss\V2 as Oss;
use AlibabaCloud\Oss\V2\Models\LifecycleConfiguration;

// Describe command-line parameters.
$optsdesc = [
    "region" => ['help' => 'The region in which the bucket is located', 'required' => True], // (Required) Specify the region in which the bucket is located.
    "endpoint" => ['help' => 'The domain names that other services can use to access OSS', 'required' => False], // (Optional) Specify the OSS endpoint.
    "bucket" => ['help' => 'The name of the bucket', 'required' => True], // (Required) Specify the name of the bucket.
];

// Generate a long options list to parse the command-line parameters.
$longopts = \array_map(function ($key) {
    return "$key:"; // Add a colon (:) to the end of each parameter to indicate that a value is required.
}, array_keys($optsdesc));

// Parse the command-line parameters.
$options = getopt("", $longopts); 

// Check whether the required parameters are missing.
foreach ($optsdesc as $key => $value) {
    if ($value['required'] === True && empty($options[$key])) {
        $help = $value['help'];
        echo "Error: the following arguments are required: --$key, $help"; // Display the required but missing parameters.
        exit(1); 
    }
}

// Obtain the values of the command-line parameters and assign the values to variables.
$region = $options["region"]; // The region in which the bucket is located.
$bucket = $options["bucket"]; // The name of the bucket.

// Load the AccessKey ID and AccessKey secret from environment variables.
$credentialsProvider = new Oss\Credentials\EnvironmentVariableCredentialsProvider();

// Use the default configuration of the SDK.
$cfg = Oss\Config::loadDefault();

// Specify the credential provider.
$cfg->setCredentialsProvider($credentialsProvider);

// Specify the region.
$cfg->setRegion($region);

// If an endpoint is provided, specify the endpoint.
if (isset($options["endpoint"])) {
    $cfg->setEndpoint($options["endpoint"]);
}

// Create an OSS client instance.
$client = new Oss\Client($cfg);

{}
$lifecycleRule = new Oss\Models\LifecycleRule(
    prefix: 'log/', // The prefix of object names.
    transitions: array(
        new Oss\Models\LifecycleRuleTransition(
            days: 30, // Specify the days.
            storageClass: 'IA', // Change to IA.
            IsAccessTime: 'true', // Trigger the change based on the last access time.
            ReturnToStdWhenVisit: 'true' // Return to the Standard storage class after they are accessed.
        )
    ),
    id: 'rule', // The rule ID.
    status: 'Enabled' // Enable the rule.
);

// Create a lifecycle configuration and add lifecycle rules to the configuration.
$lifecycleConfiguration = new LifecycleConfiguration(
    rules: array($lifecycleRule)
);

// Create a request to set a lifecycle configuration and pass the lifecycle configuration.
$request = new Oss\Models\PutBucketLifecycleRequest(
    bucket: $bucket,
    lifecycleConfiguration: $lifecycleConfiguration
);

// Call the putBucketLifecycle method to configure the lifecycle rules.
$result = $client->putBucketLifecycle($request);

// Display the result.
printf(
    'status code:' . $result->statusCode . PHP_EOL . // The HTTP response status code.
    'request id:' . $result->requestId . PHP_EOL // The request ID.
);