Aufbewahrungsrichtlinie abrufen

Beispiel zum Abrufen der Aufbewahrungsrichtlinie eines Buckets.

Weitere Informationen

Eine ausführliche Dokumentation, die dieses Codebeispiel enthält, finden Sie hier:

Aufbewahrungsrichtlinien verwenden und sperren

Codebeispiel

C++

Weitere Informationen finden Sie in der Referenzdokumentation zur Cloud Storage C++ API.

Richten Sie die Standardanmeldedaten für Anwendungen ein, um sich bei Cloud Storage zu authentifizieren. Weitere Informationen finden Sie unter Authentifizierung für eine lokale Entwicklungsumgebung einrichten.

namespace gcs = ::google::cloud::storage;
using ::google::cloud::StatusOr;
[](gcs::Client client, std::string const& bucket_name) {
  StatusOr<gcs::BucketMetadata> bucket_metadata =
      client.GetBucketMetadata(bucket_name);
  if (!bucket_metadata) throw std::move(bucket_metadata).status();

  if (!bucket_metadata->has_retention_policy()) {
    std::cout << "The bucket " << bucket_metadata->name()
              << " does not have a retention policy set.\n";
    return;
  }

  std::cout << "The bucket " << bucket_metadata->name()
            << " retention policy is set to "
            << bucket_metadata->retention_policy() << "\n";
}

C#

Weitere Informationen finden Sie in der Referenzdokumentation zur Cloud Storage C# API.


using Google.Cloud.Storage.V1;
using System;
using static Google.Apis.Storage.v1.Data.Bucket;

public class GetRetentionPolicySample
{
    public RetentionPolicyData GetRetentionPolicy(string bucketName = "your-unique-bucket-name")
    {
        var storage = StorageClient.Create();
        var bucket = storage.GetBucket(bucketName);

        if (bucket.RetentionPolicy != null)
        {
            Console.WriteLine("Retention policy:");
            Console.WriteLine($"Period: {bucket.RetentionPolicy.RetentionPeriod}");
            Console.WriteLine($"Effective time: {bucket.RetentionPolicy.EffectiveTime}");
            bool isLocked = bucket.RetentionPolicy.IsLocked ?? false;
            Console.WriteLine($"Policy locked: {isLocked}");
        }
        return bucket.RetentionPolicy;
    }
}

Go

Weitere Informationen finden Sie in der Referenzdokumentation zur Cloud Storage Go API.

import (
	"context"
	"fmt"
	"io"
	"time"

	"cloud.google.com/go/storage"
)

// getRetentionPolicy gets bucket retention policy.
func getRetentionPolicy(w io.Writer, bucketName string) (*storage.BucketAttrs, error) {
	// bucketName := "bucket-name"
	ctx := context.Background()
	client, err := storage.NewClient(ctx)
	if err != nil {
		return nil, fmt.Errorf("storage.NewClient: %w", err)
	}
	defer client.Close()

	ctx, cancel := context.WithTimeout(ctx, time.Second*10)
	defer cancel()

	attrs, err := client.Bucket(bucketName).Attrs(ctx)
	if err != nil {
		return nil, fmt.Errorf("Bucket(%q).Attrs: %w", bucketName, err)
	}
	if attrs.RetentionPolicy != nil {
		fmt.Fprintln(w, "Retention Policy")
		fmt.Fprintf(w, "period: %v\n", attrs.RetentionPolicy.RetentionPeriod)
		fmt.Fprintf(w, "effective time: %v\n", attrs.RetentionPolicy.EffectiveTime)
		fmt.Fprintf(w, "policy locked: %v\n", attrs.RetentionPolicy.IsLocked)
	}
	return attrs, nil
}

Java

Weitere Informationen finden Sie in der Referenzdokumentation zur Cloud Storage Java API.


import com.google.cloud.storage.Bucket;
import com.google.cloud.storage.Storage;
import com.google.cloud.storage.StorageException;
import com.google.cloud.storage.StorageOptions;
import java.util.Date;

public class GetRetentionPolicy {
  public static void getRetentionPolicy(String projectId, String bucketName)
      throws StorageException {
    // The ID of your GCP project
    // String projectId = "your-project-id";

    // The ID of your GCS bucket
    // String bucketName = "your-unique-bucket-name";

    Storage storage = StorageOptions.newBuilder().setProjectId(projectId).build().getService();
    Bucket bucket =
        storage.get(
            bucketName, Storage.BucketGetOption.fields(Storage.BucketField.RETENTION_POLICY));

    System.out.println("Retention Policy for " + bucketName);
    System.out.println("Retention Period: " + bucket.getRetentionPeriod());
    if (bucket.retentionPolicyIsLocked() != null && bucket.retentionPolicyIsLocked()) {
      System.out.println("Retention Policy is locked");
    }
    if (bucket.getRetentionEffectiveTime() != null) {
      System.out.println("Effective Time: " + new Date(bucket.getRetentionEffectiveTime()));
    }
  }
}

Node.js

Weitere Informationen finden Sie in der Referenzdokumentation zur Cloud Storage Node.js API.

/**
 * TODO(developer): Uncomment the following lines before running the sample.
 */
// The ID of your GCS bucket
// const bucketName = 'your-unique-bucket-name';

// Imports the Google Cloud client library
const {Storage} = require('@google-cloud/storage');

// Creates a client
const storage = new Storage();

async function getRetentionPolicy() {
  const [metadata] = await storage.bucket(bucketName).getMetadata();
  if (metadata.retentionPolicy) {
    const retentionPolicy = metadata.retentionPolicy;
    console.log('A retention policy exists!');
    console.log(`Period: ${retentionPolicy.retentionPeriod}`);
    console.log(`Effective time: ${retentionPolicy.effectiveTime}`);
    if (retentionPolicy.isLocked) {
      console.log('Policy is locked');
    } else {
      console.log('Policy is unlocked');
    }
  }
}

getRetentionPolicy().catch(console.error);

PHP

Weitere Informationen finden Sie in der Referenzdokumentation zur Cloud Storage PHP API.

use Google\Cloud\Storage\StorageClient;

/**
 * Gets a bucket's retention policy.
 *
 * @param string $bucketName The name of your Cloud Storage bucket.
 *        (e.g. 'my-bucket')
 */
function get_retention_policy(string $bucketName): void
{
    $storage = new StorageClient();
    $bucket = $storage->bucket($bucketName);
    $bucket->reload();

    printf('Retention Policy for ' . $bucketName . PHP_EOL);
    printf('Retention Period: ' . $bucket->info()['retentionPolicy']['retentionPeriod'] . PHP_EOL);
    if (array_key_exists('isLocked', $bucket->info()['retentionPolicy']) &&
        $bucket->info()['retentionPolicy']['isLocked']) {
        printf('Retention Policy is locked' . PHP_EOL);
    }
    if ($bucket->info()['retentionPolicy']['effectiveTime']) {
        printf('Effective Time: ' . $bucket->info()['retentionPolicy']['effectiveTime'] . PHP_EOL);
    }
}

Python

Weitere Informationen finden Sie in der Referenzdokumentation zur Cloud Storage Python API.

from google.cloud import storage


def get_retention_policy(bucket_name):
    """Gets the retention policy on a given bucket"""
    # bucket_name = "my-bucket"

    storage_client = storage.Client()
    bucket = storage_client.bucket(bucket_name)
    bucket.reload()

    print(f"Retention Policy for {bucket_name}")
    print(f"Retention Period: {bucket.retention_period}")
    if bucket.retention_policy_locked:
        print("Retention Policy is locked")

    if bucket.retention_policy_effective_time:
        print(
            f"Effective Time: {bucket.retention_policy_effective_time}"
        )

Ruby

Weitere Informationen finden Sie in der Referenzdokumentation zur Cloud Storage Ruby API.

def get_retention_policy bucket_name:
  # The ID of your GCS bucket
  # bucket_name = "your-unique-bucket-name"

  require "google/cloud/storage"

  storage = Google::Cloud::Storage.new
  bucket  = storage.bucket bucket_name

  puts "Retention policy:"
  puts "period: #{bucket.retention_period}"
  puts "effective time: #{bucket.retention_effective_at}"
  puts "policy locked: #{bucket.retention_policy_locked?}"
end

Nächste Schritte

Informationen zum Suchen und Filtern von Codebeispielen für andere Google Cloud-Produkte finden Sie im Google Cloud-Beispielbrowser.