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<?php
/**
* LICENSE: Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* PHP version 5
*
* @category Microsoft
* @package WindowsAzure\Common\Internal\Filters
* @author Azure PHP SDK <azurephpsdk@microsoft.com>
* @copyright 2012 Microsoft Corporation
* @license http://www.apache.org/licenses/LICENSE-2.0 Apache License 2.0
* @link https://github.com/windowsazure/azure-sdk-for-php
*/
namespace WindowsAzure\Common\Internal\Filters;
use WindowsAzure\Common\Internal\IServiceFilter;
/**
* Short description
*
* @category Microsoft
* @package WindowsAzure\Common\Internal\Filters
* @author Azure PHP SDK <azurephpsdk@microsoft.com>
* @copyright 2012 Microsoft Corporation
* @license http://www.apache.org/licenses/LICENSE-2.0 Apache License 2.0
* @version Release: 0.4.1_2015-03
* @link https://github.com/windowsazure/azure-sdk-for-php
*/
class RetryPolicyFilter implements IServiceFilter
{
/**
* @var RetryPolicy
*/
private $_retryPolicy;
/**
* Initializes new object from RetryPolicyFilter.
*
* @param RetryPolicy $retryPolicy The retry policy object.
*/
public function __construct($retryPolicy)
{
$this->_retryPolicy = $retryPolicy;
}
/**
* Handles the request before sending.
*
* @param \HTTP_Request2 $request The HTTP request.
*
* @return \HTTP_Request2
*/
public function handleRequest($request)
{
return $request;
}
/**
* Handles the response after sending.
*
* @param \HTTP_Request2 $request The HTTP request.
* @param \HTTP_Request2_Response $response The HTTP response.
*
* @return \HTTP_Request2_Response
*/
public function handleResponse($request, $response)
{
for ($retryCount = 0;; $retryCount++) {
$shouldRetry = $this->_retryPolicy->shouldRetry(
$retryCount,
$response
);
if (!$shouldRetry) {
return $response;
}
// Backoff for some time according to retry policy
$backoffTime = $this->_retryPolicy->calculateBackoff(
$retryCount,
$response
);
sleep($backoffTime * 0.001);
$response = $request->send(array());
}
}
}