File Source for BatchStorage.php

<?php
/**
* Copyright (c) 2009, RealDolmen
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of RealDolmen nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RealDolmen ''AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL RealDolmen BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* @category Microsoft
* @package Microsoft_WindowsAzure
* @subpackage Storage
* @copyright Copyright (c) 2009, RealDolmen (http://www.realdolmen.com)
* @license http://phpazure.codeplex.com/license
* @version $Id: Storage.php 21617 2009-06-12 10:46:31Z unknown $
*/
/**
* @see Microsoft_WindowsAzure_Storage
*/
require_once 'Microsoft/WindowsAzure/Storage.php';
/**
* @see Microsoft_WindowsAzure_Credentials
*/
require_once 'Microsoft/WindowsAzure/Credentials.php';
/**
* @see Microsoft_WindowsAzure_Exception
*/
require_once 'Microsoft/WindowsAzure/Exception.php';
/**
* @see Microsoft_WindowsAzure_Storage_Batch
*/
require_once 'Microsoft/WindowsAzure/Storage/Batch.php';
/**
* @see Microsoft_Http_Transport
*/
require_once 'Microsoft/Http/Transport.php';
/**
* @see Microsoft_Http_Response
*/
require_once 'Microsoft/Http/Response.php';
/**
* @category Microsoft
* @package Microsoft_WindowsAzure
* @subpackage Storage
* @copyright Copyright (c) 2009, RealDolmen (http://www.realdolmen.com)
* @license http://phpazure.codeplex.com/license
*/
abstract class Microsoft_WindowsAzure_Storage_BatchStorage extends Microsoft_WindowsAzure_Storage
{
/**
* Current batch
*
* @var Microsoft_WindowsAzure_Storage_Batch
*/
protected $_currentBatch = null;
/**
* Set current batch
*
* @param Microsoft_WindowsAzure_Storage_Batch $batch Current batch
* @throws Microsoft_WindowsAzure_Exception
*/
public function setCurrentBatch(Microsoft_WindowsAzure_Storage_Batch $batch = null)
{
if (!is_null($batch) && $this->isInBatch())
{
throw new Microsoft_WindowsAzure_Exception('Only one batch can be active at a time.');
}
$this->_currentBatch = $batch;
}
/**
* Get current batch
*
* @return Microsoft_WindowsAzure_Storage_Batch
*/
public function getCurrentBatch()
{
return $this->_currentBatch;
}
/**
* Is there a current batch?
*
* @return boolean
*/
public function isInBatch()
{
return !is_null($this->_currentBatch);
}
/**
* Starts a new batch operation set
*
* @return Microsoft_WindowsAzure_Storage_Batch
* @throws Microsoft_WindowsAzure_Exception
*/
public function startBatch()
{
return new Microsoft_WindowsAzure_Storage_Batch($this, $this->getBaseUrl());
}
/**
* Perform batch using Microsoft_Http_Transport channel, combining all batch operations into one request
*
* @param array $operations Operations in batch
* @param boolean $forTableStorage Is the request for table storage?
* @param boolean $isSingleSelect Is the request a single select statement?
* @param string $resourceType Resource type
* @param string $requiredPermission Required permission
* @return Microsoft_Http_Response
*/
public function performBatch($operations = array(), $forTableStorage = false, $isSingleSelect = false, $resourceType = Microsoft_WindowsAzure_Storage::RESOURCE_UNKNOWN, $requiredPermission = Microsoft_WindowsAzure_Credentials::PERMISSION_READ)
{
// Generate boundaries
$batchBoundary = 'batch_' . md5(time() . microtime());
$changesetBoundary = 'changeset_' . md5(time() . microtime());
// Set headers
$headers = array();
// Add version header
$headers['x-ms-version'] = $this->_apiVersion;
// Add content-type header
$headers['Content-Type'] = 'multipart/mixed; boundary=' . $batchBoundary;
// Set path and query string
$path = '/$batch';
$queryString = '';
// Set verb
$httpVerb = Microsoft_Http_Transport::VERB_POST;
// Generate raw data
$rawData = '';
// Single select?
if ($isSingleSelect)
{
$operation = $operations[0];
$rawData .= '--' . $batchBoundary . "\n";
$rawData .= 'Content-Type: application/http' . "\n";
$rawData .= 'Content-Transfer-Encoding: binary' . "\n\n";
$rawData .= $operation;
$rawData .= '--' . $batchBoundary . '--';
}
else
{
$rawData .= '--' . $batchBoundary . "\n";
$rawData .= 'Content-Type: multipart/mixed; boundary=' . $changesetBoundary . "\n\n";
// Add operations
foreach ($operations as $operation)
{
$rawData .= '--' . $changesetBoundary . "\n";
$rawData .= 'Content-Type: application/http' . "\n";
$rawData .= 'Content-Transfer-Encoding: binary' . "\n\n";
$rawData .= $operation;
}
$rawData .= '--' . $changesetBoundary . '--' . "\n";
$rawData .= '--' . $batchBoundary . '--';
}
// Generate URL and sign request
$requestUrl = $this->_credentials->signRequestUrl($this->getBaseUrl() . $path . $queryString, $resourceType, $requiredPermission);
$requestHeaders = $this->_credentials->signRequestHeaders($httpVerb, $path, $queryString, $headers, $forTableStorage, $resourceType, $requiredPermission);
$requestClient = Microsoft_Http_Transport::createChannel();
if ($this->_useProxy)
{
$requestClient->setProxy($this->_useProxy, $this->_proxyUrl, $this->_proxyPort, $this->_proxyCredentials);
}
$response = $this->_retryPolicy->execute(
array($requestClient, 'request'),
array($httpVerb, $requestUrl, array(), $requestHeaders, $rawData)
);
$requestClient = null;
unset($requestClient);
return $response;
}
}

Source for file BatchStorage.php