オブジェクトを復元する - Object Storage Service - Alibaba Cloud ドキュメントセンター

オブジェクトを読み取る前に、ArchiveオブジェクトまたはCold Archiveオブジェクトを復元する必要があります。このトピックでは、ArchiveオブジェクトまたはCold Archiveオブジェクトを復元する方法について説明します。

使用上の注意

RestoreObject操作は、アーカイブおよびコールドアーカイブオブジェクトでのみ呼び出すことができます。
このトピックでは、中国 (杭州) リージョンのパブリックエンドポイントを使用します。 OSSと同じリージョンにある他のAlibaba CloudサービスからOSSにアクセスする場合は、内部エンドポイントを使用します。 OSSリージョンとエンドポイントの詳細については、「リージョンとエンドポイント」をご参照ください。
このトピックでは、OSSエンドポイントを使用してOSSClientインスタンスを作成します。カスタムドメイン名またはSTS (Security Token Service) を使用してOSSClientインスタンスを作成する場合は、「初期化」をご参照ください。
オブジェクトを復元するには、oss:RestoreObject権限が必要です。詳細については、「RAMユーザーへのカスタムポリシーのアタッチ」をご参照ください。

Archive オブジェクトの復元

次のサンプルコードは、Archiveオブジェクトを復元する方法の例を示しています。

using Aliyun.OSS;
using Aliyun.OSS.Model;
using Aliyun.OSS.Model;
using System.Net;
using System.Text;

// Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. 
var endpoint = "yourEndpoint";
// 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. 
var accessKeyId = Environment.GetEnvironmentVariable("OSS_ACCESS_KEY_ID");
var accessKeySecret = Environment.GetEnvironmentVariable("OSS_ACCESS_KEY_SECRET");
// Specify the name of the bucket. 
var bucketName = "examplebucket";
// Specify the full path of the object. The path cannot contain the bucket name. 
var objectName = "yourObjectName";
// Specify the content of the object. 
var objectContent = "More than just cloud.";
int maxWaitTimeInSeconds = 600;
// 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.
const string region = "cn-hangzhou";

// Create a ClientConfiguration instance and modify the default parameters based on your requirements.
var conf = new ClientConfiguration();

// Use the signature algorithm V4.
conf.SignatureVersion = SignatureVersion.V4;

// Create an OSSClient instance.
var client = new OssClient(endpoint, accessKeyId, accessKeySecret, conf);
c.SetRegion(region);
try
{
    // Create an Archive bucket. 
    var bucket = client.CreateBucket(bucketName, StorageClass.Archive);
    Console.WriteLine("Create Archive bucket succeeded, {0} ", bucket.Name);
}
catch (Exception ex)
{
    Console.WriteLine("Create Archive bucket failed, {0}", ex.Message);
}
// Upload the object to the bucket and set the storage class of the object to Archive. 
try
{
    byte[] binaryData = Encoding.ASCII.GetBytes(objectContent);
    MemoryStream requestContent = new MemoryStream(binaryData);
    client.PutObject(bucketName, objectName, requestContent);
    Console.WriteLine("Put object succeeded, {0}", objectName);
}
catch (Exception ex)
{
    Console.WriteLine("Put object failed, {0}", ex.Message);
}
var metadata = client.GetObjectMetadata(bucketName, objectName);
string storageClass = metadata.HttpMetadata["x-oss-storage-class"] as string;
if (storageClass != "Archive")
{
    Console.WriteLine("StorageClass is {0}", storageClass);
    return;
}
// Restore the Archive object. 
RestoreObjectResult result = client.RestoreObject(bucketName, objectName);
Console.WriteLine("RestoreObject result HttpStatusCode : {0}", result.HttpStatusCode);
if (result.HttpStatusCode != HttpStatusCode.Accepted)
{
    throw new OssException(result.RequestId + ", " + result.HttpStatusCode + " ,");
}
while (maxWaitTimeInSeconds > 0)
{
    var meta = client.GetObjectMetadata(bucketName, objectName);
    string restoreStatus = meta.HttpMetadata["x-oss-restore"] as string;
    if (restoreStatus != null && restoreStatus.StartsWith("ongoing-request=\"false\"", StringComparison.InvariantCultureIgnoreCase))
    {
        break;
    }
    Thread.Sleep(1000);
    // The maximum wait time decreases by 1 second. 
    maxWaitTimeInSeconds--;
}
if (maxWaitTimeInSeconds == 0)
{
    Console.WriteLine("RestoreObject is timeout. ");
    throw new TimeoutException();
}
else
{
    Console.WriteLine("RestoreObject is successful. ");
}

Cold Archiveオブジェクトを復元する

次のコードは、Cold Archiveオブジェクトを復元する方法の例を示しています。

using Aliyun.OSS;
using Aliyun.OSS.Model;
// Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. 
var endpoint = "yourEndpoint";
// 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. 
var accessKeyId = Environment.GetEnvironmentVariable("OSS_ACCESS_KEY_ID");
var accessKeySecret = Environment.GetEnvironmentVariable("OSS_ACCESS_KEY_SECRET");
// Specify the name of the bucket. 
var bucketName = "examplebucket";
// Specify the full path of the Cold Archive object. Do not include the bucket name in the full path. 
var objectName = "yourObjectName";
// 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.
const string region = "cn-hangzhou";

// Create a ClientConfiguration instance and modify the default parameters based on your requirements.
var conf = new ClientConfiguration();

// Use the signature algorithm V4.
conf.SignatureVersion = SignatureVersion.V4;

// Create an OSSClient instance.
var client = new OssClient(endpoint, accessKeyId, accessKeySecret, conf);
c.SetRegion(region);

// Restore the Cold Archive object. 
var request = new RestoreObjectRequest(bucketName, objectName);

// Specify the restoration priority of the Cold Archive object. 
// TierType.Expedited: The object is restored within 1 hour. 
// TierType.Standard: The object is restored within 2 to 5 hours. 
// TierType.Bulk: The object is restored within 5 to 12 hours. 
// Configure restoration parameters. For example, you can set the restoration priority of the object to Expedited, and set the duration for which the object can remain in the restored state to two days. 
// The Days parameter indicates the duration for which the object can remain in the restored state. The default value is 1. This parameter applies to Archive and Cold Archive objects. 
// The Tier parameter indicates the restoration priority of the object and applies only to Cold Archive objects. 
request.Days = 2;
request.Tier = TierType.Bulk;
RestoreObjectResult result = client.RestoreObject(request);
Console.WriteLine("RestoreObject result HttpStatusCode : {0}", result.HttpStatusCode);

Object Storage Service:オブジェクトを復元する

使用上の注意

Archive オブジェクトの復元

Cold Archiveオブジェクトを復元する

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