Conversión de la clase de almacenamiento de un objeto con OSS SDK for PHP 2.0 - Object Storage Service

Object Storage Service (OSS) ofrece diversas clases de almacenamiento para cubrir distintos escenarios, desde datos frecuentes hasta datos fríos: Standard, Infrequent Access (IA), Archive, Cold Archive y Deep Cold Archive. En OSS, una vez que se crea un objeto, su contenido no se puede modificar. Si necesita convertir la clase de almacenamiento de un objeto, debe crear uno nuevo y asignarle la clase correspondiente. En este tema se describe cómo usar OSS SDK for PHP 2.0 para convertir la clase de almacenamiento.

Notas

El código de ejemplo de este tema usa el identificador de región cn-hangzhou, correspondiente a China (Hangzhou). De forma predeterminada, se usa un endpoint público para acceder a los recursos de un bucket. Si desea acceder a dichos recursos desde otros servicios de Alibaba Cloud ubicados en la misma región que el bucket, use un endpoint interno. Para obtener más información sobre las regiones y los endpoints de OSS, consulte Regions and endpoints.
Para convertir la clase de almacenamiento de un objeto, necesita los permisos oss:GetObject, oss:PutObject y oss:RestoreObject. Para obtener más información, consulte Grant a custom policy.

Código de ejemplo

Uso del método CopyObject para convertir la clase de almacenamiento

El método CopyObject permite convertir la clase de almacenamiento de un objeto de Standard a Archive.

<?php

// Introduce autoload files to load dependency libraries.
require_once __DIR__ . '/../vendor/autoload.php';

use AlibabaCloud\Oss\V2 as Oss;

// Define and 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 endpoint for accessing OSS.
    "bucket" => ['help' => 'The name of the bucket', 'required' => True], // (Required) Specify the name of the destination bucket.
    "key" => ['help' => 'The name of the object', 'required' => True], // (Required) Specify the name of the destination object.
    "src-bucket" => ['help' => 'The name of the source bucket', 'required' => False], // (Optional) Specify the name of the source bucket.
    "src-key" => ['help' => 'The name of the source object', 'required' => True], // (Required) Specify the name of the source object.
];

// Convert the descriptions to a list of long options required by getopt.
// Add a colon (:) to the end of each parameter to indicate that a value is required.
$longopts = \array_map(function ($key) {
    return "$key:";
}, array_keys($optsdesc));

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

// Check whether the required parameters are configured.
foreach ($optsdesc as $key => $value) {
    if ($value['required'] === True && empty($options[$key])) {
        $help = $value['help']; // Obtain help information for the parameters.
        echo "Error: the following arguments are required: --$key, $help" . PHP_EOL;
        exit(1); // Exit the program if the required parameters are not configured.
    }
}

// Assign the values parsed from the command-line parameters to the corresponding variables.
$region = $options["region"]; // The region in which the bucket is located.
$bucket = $options["bucket"]; // The name of the destination bucket.
$key = $options["key"]; // The name of destination object.
$srcKey = $options["src-key"]; // The name of the source object.

// Load access credentials from environment variables.
// Use EnvironmentVariableCredentialsProvider to retrieve 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();
$cfg->setCredentialsProvider($credentialsProvider); // Specify the credential provider.
$cfg->setRegion($region); // Specify the region in which the bucket is located.
if (isset($options["endpoint"])) {
    $cfg->setEndpoint($options["endpoint"]); // Specify the endpoint if one is provided.
}

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

// Create a CopyObjectRequest object to copy the source object.
$request = new Oss\Models\CopyObjectRequest(
            bucket: $bucket,
            key: $key,
            sourceKey: $srcKey,
            sourceBucket: $bucket,
            storageClass: 'Archive' // Set the storage class to Archive.

if (!empty($options["src-bucket"])) {
    $request->sourceBucket = $options["src-bucket"]; // If the source bucket name is provided, specify the sourceBucket parameter.
}
$request->sourceKey = $srcKey; // Specify the name of the source object.

// Perform the object copy operation.
$result = $client->copyObject($request);

// Display the object copy result.
printf(
    'status code:' . $result->statusCode . PHP_EOL . // The HTTP status code. For example, HTTP status code 200 indicates that the request succeeded.
    'request id:' . $result->requestId . PHP_EOL     // The request ID, which can be used to debug or trace the request.
);

Uso de Copier para convertir la clase de almacenamiento de un objeto

Se recomienda usar el método Copier.Copy de OSS SDK for PHP 2.0 para convertir la clase de almacenamiento. Este método combina las operaciones de copia simple y copia por partes, y selecciona automáticamente la más adecuada según los parámetros de la solicitud.

A continuación se muestra el código de ejemplo para usar el método Copier.Copy y convertir la clase de almacenamiento de un objeto de Standard a Archive.

<?php

// Introduce autoload files to load dependency libraries.
require_once __DIR__ . '/../vendor/autoload.php';

use AlibabaCloud\Oss\V2 as Oss;

// Define and 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 endpoint.
    "bucket" => ['help' => 'The name of the bucket', 'required' => True], // (Required) Specify the name of the bucket.
    "key" => ['help' => 'The name of the object', 'required' => True], // (Required) Specify the name of the destination object.
    "src-key" => ['help' => 'The name of the source object', 'required' => True], // (Required) Specify the name of the source object.
];

// Convert the descriptions to a list of long options required by getopt.
// Add a colon (:) to the end of each parameter to indicate that a value is required.
$longopts = \array_map(function ($key) {
    return "$key:";
}, array_keys($optsdesc));

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

// Check whether the required parameters are configured.
foreach ($optsdesc as $key => $value) {
    if ($value['required'] === True && empty($options[$key])) {
        $help = $value['help']; // Obtain help information for the parameters.
        echo "Error: the following arguments are required: --$key, $help" . PHP_EOL;
        exit(1); // Exit the program if a required parameter is missing.
    }
}

// Obtain values from the parsed parameters.
$region = $options["region"]; // The region in which the bucket is located.
$bucket = $options["bucket"]; // The name of the bucket.
$key = $options["key"];       // The name of the destination object.
$srcKey = $options["src-key"]; // The name of the source object.

// Load access credentials from environment variables.
// Use EnvironmentVariableCredentialsProvider to retrieve 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();
$cfg->setCredentialsProvider($credentialsProvider); // Specify the credential provider.
$cfg->setRegion($region); // Specify the region in which the bucket is located.
if (isset($options["endpoint"])) {
    $cfg->setEndpoint($options["endpoint"]); // Specify the endpoint if one is provided.
}

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

// Create a Copier instance.
$copier = $client->newCopier();

$dstKey = $key; // The name of the destination object.
$copyRequest = new Oss\Models\CopyObjectRequest(
    bucket: $bucket,
    key: $dstKey,
    sourceBucket: $bucket,
    sourceKey: $srcKey,
    storageClass: "Archive");

$result = $copier->copy(
    request: $copyRequest,
);

printf(
    'status code:' . $result->statusCode . PHP_EOL . // The HTTP status code. For example, HTTP status code 200 indicates that the request succeeded.
    'request id:' . $result->requestId . PHP_EOL     // The request ID, which can be used to debug or trace the request.
);