C:/xampp/htdocs/moodle/lib/zend/Zend/Service/WindowsAzure/Storage/Batch.php

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<?php
require_once 'Zend/Service/WindowsAzure/Exception.php';

require_once 'Zend/Service/WindowsAzure/Storage/BatchStorageAbstract.php';

class Zend_Service_WindowsAzure_Storage_Batch
{       
    protected $_storageClient = null;
    
    protected $_forTableStorage = false;
    
    protected $_baseUrl;
    
    protected $_operations = array();
    
    protected $_isSingleSelect = false;
    
    public function __construct(Zend_Service_WindowsAzure_Storage_BatchStorageAbstract $storageClient = null, $baseUrl = '')
    {
        $this->_storageClient = $storageClient;
        $this->_baseUrl       = $baseUrl;
        $this->_beginBatch();
    }
    
        public function getBaseUrl()
        {
                return $this->_baseUrl;
        }
    
    protected function _beginBatch()
    {
        $this->_storageClient->setCurrentBatch($this);
    }
    
    protected function _clean()
    {
        unset($this->_operations);
        $this->_storageClient->setCurrentBatch(null);
        $this->_storageClient = null;
        unset($this);
    }

        public function enlistOperation($path = '/', $queryString = '', $httpVerb = Zend_Http_Client::GET, $headers = array(), $forTableStorage = false, $rawData = null)
        {
            // Set _forTableStorage
            if ($forTableStorage) {
                $this->_forTableStorage = true;
            }
            
            // Set _isSingleSelect
            if ($httpVerb == Zend_Http_Client::GET) {
                if (count($this->_operations) > 0) {
                    throw new Zend_Service_WindowsAzure_Exception("Select operations can only be performed in an empty batch transaction.");
                }
                $this->_isSingleSelect = true;
            }
            
            // Clean path
                if (strpos($path, '/') !== 0) {
                        $path = '/' . $path;
                }
                        
                // Clean headers
                if (is_null($headers)) {
                    $headers = array();
                }
                    
                // URL encoding
                $path           = Zend_Service_WindowsAzure_Storage::urlencode($path);
                $queryString    = Zend_Service_WindowsAzure_Storage::urlencode($queryString);

                // Generate URL
                $requestUrl     = $this->getBaseUrl() . $path . $queryString;
                
                // Generate $rawData
                if (is_null($rawData)) {
                    $rawData = '';
                }
                    
                // Add headers
                if ($httpVerb != Zend_Http_Client::GET) {
                $headers['Content-ID'] = count($this->_operations) + 1;
                if ($httpVerb != Zend_Http_Client::DELETE) {
                    $headers['Content-Type'] = 'application/atom+xml;type=entry';
                }
                $headers['Content-Length'] = strlen($rawData);
                }
                    
                // Generate $operation
                $operation = '';
                $operation .= $httpVerb . ' ' . $requestUrl . ' HTTP/1.1' . "\n";
                foreach ($headers as $key => $value)
                {
                    $operation .= $key . ': ' . $value . "\n";
                }
                $operation .= "\n";
                
                // Add data
                $operation .= $rawData;

                // Store operation
                $this->_operations[] = $operation;              
        }
    
    public function commit()
    {
        // Perform batch
        $response = $this->_storageClient->performBatch($this->_operations, $this->_forTableStorage, $this->_isSingleSelect);
        
        // Dispose
        $this->_clean();
        
        // Parse response
        $errors = null;
        preg_match_all('/<message (.*)>(.*)<\/message>/', $response->getBody(), $errors);
        
        // Error?
        if (count($errors[2]) > 0) {
            throw new Zend_Service_WindowsAzure_Exception('An error has occured while committing a batch: ' . $errors[2][0]);
        }
        
        // Return
        return $response;
    }
    
    public function rollback()
    {
        // Dispose
        $this->_clean();
    }
    
    public function getOperationCount()
    {
        return count($this->_operations);
    }
    
    public function isSingleSelect()
    {
        return $this->_isSingleSelect;
    }
}