Modifica della classe di archiviazione predefinita di un bucket

Aggiorna la classe di archiviazione di un bucket Cloud Storage.

Per saperne di più

Per la documentazione dettagliata che include questo esempio di codice, vedi quanto segue:

Modifica della classe di archiviazione predefinita di un bucket

Esempio di codice

C++

Per maggiori informazioni, consulta la documentazione di riferimento dell'API C++ di Cloud Storage.

Per eseguire l'autenticazione in Cloud Storage, configura Credenziali predefinite dell'applicazione. Per maggiori informazioni, consulta Configurare l'autenticazione per un ambiente di sviluppo locale.

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

  gcs::BucketMetadata desired = *original;
  desired.set_storage_class(storage_class);

  StatusOr<gcs::BucketMetadata> patched =
      client.PatchBucket(bucket_name, *original, desired);
  if (!patched) throw std::move(patched).status();

  std::cout << "Storage class for bucket " << patched->name()
            << " has been patched to " << patched->storage_class() << "."
            << "\nFull metadata: " << *patched << "\n";
}

C#

Per maggiori informazioni, consulta la documentazione di riferimento dell'API C# di Cloud Storage.


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

public class ChangeDefaultStorageClassSample
{
	public Bucket ChangeDefaultStorageClass(string bucketName = "your-bucket-name", string storageClass = StorageClasses.Standard)
	{
	    var storage = StorageClient.Create();
	    var bucket = storage.GetBucket(bucketName);

	    bucket.StorageClass = storageClass;

	    bucket = storage.UpdateBucket(bucket);
	    Console.WriteLine($"Default storage class for bucket {bucketName} changed to {storageClass}.");
	    return bucket;
	}
}

Go

Per maggiori informazioni, consulta la documentazione di riferimento dell'API Go di Cloud Storage.

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

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

// changeDefaultStorageClass changes the storage class on a bucket.
func changeDefaultStorageClass(w io.Writer, bucketName string) error {
	// bucketName := "bucket-name"
	ctx := context.Background()
	client, err := storage.NewClient(ctx)
	if err != nil {
		return fmt.Errorf("storage.NewClient: %w", err)
	}
	defer client.Close()

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

	bucket := client.Bucket(bucketName)
	newStorageClass := "COLDLINE"
	bucketAttrsToUpdate := storage.BucketAttrsToUpdate{
		StorageClass: newStorageClass,
	}
	if _, err := bucket.Update(ctx, bucketAttrsToUpdate); err != nil {
		return fmt.Errorf("Bucket(%q).Update: %w", bucketName, err)
	}
	fmt.Fprintf(w, "Default storage class for bucket %v has been set to %v\n", bucketName, newStorageClass)
	return nil
}

Java

Per maggiori informazioni, consulta la documentazione di riferimento dell'API Java di Cloud Storage.

import com.google.cloud.storage.Bucket;
import com.google.cloud.storage.Storage;
import com.google.cloud.storage.StorageClass;
import com.google.cloud.storage.StorageOptions;

public class ChangeDefaultStorageClass {
  public static void changeDefaultStorageClass(String projectId, String bucketName) {
    // The ID of your GCP project
    // String projectId = "your-project-id";

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

    // See the StorageClass documentation for other valid storage classes:
    // https://googleapis.dev/java/google-cloud-clients/latest/com/google/cloud/storage/StorageClass.html
    StorageClass storageClass = StorageClass.COLDLINE;

    Storage storage = StorageOptions.newBuilder().setProjectId(projectId).build().getService();
    Bucket bucket = storage.get(bucketName);
    bucket = bucket.toBuilder().setStorageClass(storageClass).build().update();

    System.out.println(
        "Default storage class for bucket "
            + bucketName
            + " has been set to "
            + bucket.getStorageClass());
  }
}

Node.js

Per maggiori informazioni, consulta la documentazione di riferimento dell'API Node.js di Cloud Storage.

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

// The name of a storage class
// See the StorageClass documentation for other valid storage classes:
// https://googleapis.dev/java/google-cloud-clients/latest/com/google/cloud/storage/StorageClass.html
// const storageClass = 'coldline';

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

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

async function changeDefaultStorageClass() {
  await storage.bucket(bucketName).setStorageClass(storageClass);

  console.log(`${bucketName} has been set to ${storageClass}`);
}

changeDefaultStorageClass().catch(console.error);

PHP

Per maggiori informazioni, consulta la documentazione di riferimento dell'API PHP di Cloud Storage.

use Google\Cloud\Storage\StorageClient;

/**
 * Change the default storage class for the given bucket.
 *
 * @param string $bucketName The name of your Cloud Storage bucket.
 *        (e.g. 'my-bucket')
 */
function change_default_storage_class(string $bucketName): void
{
    $storage = new StorageClient();
    $bucket = $storage->bucket($bucketName);

    $storageClass = 'COLDLINE';

    $bucket->update([
        'storageClass' => $storageClass,
    ]);

    printf(
        'Default storage class for bucket %s has been set to %s',
        $bucketName,
        $storageClass
    );
}

Python

Per maggiori informazioni, consulta la documentazione di riferimento dell'API Python di Cloud Storage.

from google.cloud import storage
from google.cloud.storage import constants

def change_default_storage_class(bucket_name):
    """Change the default storage class of the bucket"""
    # bucket_name = "your-bucket-name"

    storage_client = storage.Client()

    bucket = storage_client.get_bucket(bucket_name)
    bucket.storage_class = constants.COLDLINE_STORAGE_CLASS
    bucket.patch()

    print(f"Default storage class for bucket {bucket_name} has been set to {bucket.storage_class}")
    return bucket

Ruby

Per maggiori informazioni, consulta la documentazione di riferimento dell'API Ruby di Cloud Storage.

def change_default_storage_class 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

  bucket.storage_class = "COLDLINE"

  puts "Default storage class for bucket #{bucket_name} has been set to #{bucket.storage_class}"
end

Passaggi successivi

Per cercare e filtrare esempi di codice per altri prodotti Google Cloud, consulta il browser di esempio Google Cloud.