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/library/Zend/Service/WindowsAzure/Storage/BatchStorageAbstract.php

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PHP | 197 lines | 76 code | 26 blank | 95 comment | 4 complexity | 5b54ec8e054b6171d7d60c25f6653cd9 MD5 | raw file
  1<?php
  2/**
  3 * Zend Framework
  4 *
  5 * LICENSE
  6 *
  7 * This source file is subject to the new BSD license that is bundled
  8 * with this package in the file LICENSE.txt.
  9 * It is also available through the world-wide-web at this URL:
 10 * http://framework.zend.com/license/new-bsd
 11 * If you did not receive a copy of the license and are unable to
 12 * obtain it through the world-wide-web, please send an email
 13 * to license@zend.com so we can send you a copy immediately.
 14 *
 15 * @category   Zend
 16 * @package    Zend_Service_WindowsAzure
 17 * @subpackage Storage
 18 * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
 19 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 20 * @version    $Id: BatchStorageAbstract.php 23775 2011-03-01 17:25:24Z ralph $
 21 */
 22
 23/**
 24 * @see Zend_Service_WindowsAzure_Storage
 25 */
 26require_once 'Zend/Service/WindowsAzure/Storage.php';
 27
 28/**
 29 * @see Zend_Service_WindowsAzure_Credentials_CredentialsAbstract
 30 */
 31require_once 'Zend/Service/WindowsAzure/Credentials/CredentialsAbstract.php';
 32
 33/**
 34 * @see Zend_Service_WindowsAzure_Exception
 35 */
 36require_once 'Zend/Service/WindowsAzure/Exception.php';
 37
 38/**
 39 * @see Zend_Service_WindowsAzure_Storage_Batch
 40 */
 41require_once 'Zend/Service/WindowsAzure/Storage/Batch.php';
 42
 43/**
 44 * @see Zend_Http_Client
 45 */
 46require_once 'Zend/Http/Client.php';
 47
 48/**
 49 * @see Zend_Http_Response
 50 */
 51require_once 'Zend/Http/Response.php';
 52
 53/**
 54 * @category   Zend
 55 * @package    Zend_Service_WindowsAzure
 56 * @subpackage Storage
 57 * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
 58 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 59 */
 60abstract class Zend_Service_WindowsAzure_Storage_BatchStorageAbstract
 61    extends Zend_Service_WindowsAzure_Storage
 62{    
 63    /**
 64     * Current batch
 65     *
 66     * @var Zend_Service_WindowsAzure_Storage_Batch
 67     */
 68    protected $_currentBatch = null;
 69
 70    /**
 71     * Set current batch
 72     *
 73     * @param Zend_Service_WindowsAzure_Storage_Batch $batch Current batch
 74     * @throws Zend_Service_WindowsAzure_Exception
 75     */
 76    public function setCurrentBatch(Zend_Service_WindowsAzure_Storage_Batch $batch = null)
 77    {
 78        if ($batch !== null && $this->isInBatch()) {
 79            throw new Zend_Service_WindowsAzure_Exception('Only one batch can be active at a time.');
 80        }
 81        $this->_currentBatch = $batch;
 82    }
 83
 84    /**
 85     * Get current batch
 86     *
 87     * @return Zend_Service_WindowsAzure_Storage_Batch
 88     */
 89    public function getCurrentBatch()
 90    {
 91        return $this->_currentBatch;
 92    }
 93
 94    /**
 95     * Is there a current batch?
 96     *
 97     * @return boolean
 98     */
 99    public function isInBatch()
100    {
101        return $this->_currentBatch !== null;
102    }
103
104    /**
105     * Starts a new batch operation set
106     *
107     * @return Zend_Service_WindowsAzure_Storage_Batch
108     * @throws Zend_Service_WindowsAzure_Exception
109     */
110    public function startBatch()
111    {
112        return new Zend_Service_WindowsAzure_Storage_Batch($this, $this->getBaseUrl());
113    }
114	
115	/**
116	 * Perform batch using Zend_Http_Client channel, combining all batch operations into one request
117	 *
118	 * @param array $operations Operations in batch
119	 * @param boolean $forTableStorage Is the request for table storage?
120	 * @param boolean $isSingleSelect Is the request a single select statement?
121	 * @param string $resourceType Resource type
122	 * @param string $requiredPermission Required permission
123	 * @return Zend_Http_Response
124	 */
125	public function performBatch($operations = array(), $forTableStorage = false, $isSingleSelect = false, $resourceType = Zend_Service_WindowsAzure_Storage::RESOURCE_UNKNOWN, $requiredPermission = Zend_Service_WindowsAzure_Credentials_CredentialsAbstract::PERMISSION_READ)
126	{
127	    // Generate boundaries
128	    $batchBoundary = 'batch_' . md5(time() . microtime());
129	    $changesetBoundary = 'changeset_' . md5(time() . microtime());
130	
131	    // Set headers
132	    $headers = array();
133	
134		// Add version header
135		$headers['x-ms-version'] = $this->_apiVersion;
136		
137		// Add dataservice headers
138		$headers['DataServiceVersion'] = '1.0;NetFx';
139		$headers['MaxDataServiceVersion'] = '1.0;NetFx';
140		
141		// Add content-type header
142		$headers['Content-Type'] = 'multipart/mixed; boundary=' . $batchBoundary;
143
144        // Set path and query string
145        $path           = '/$batch';
146        $queryString    = '';
147        
148        // Set verb
149        $httpVerb = Zend_Http_Client::POST;
150        
151        // Generate raw data
152        $rawData = '';
153            
154        // Single select?
155        if ($isSingleSelect) {
156            $operation = $operations[0];
157            $rawData .= '--' . $batchBoundary . "\n";
158            $rawData .= 'Content-Type: application/http' . "\n";
159            $rawData .= 'Content-Transfer-Encoding: binary' . "\n\n";
160            $rawData .= $operation;
161            $rawData .= '--' . $batchBoundary . '--';
162        } else {
163            $rawData .= '--' . $batchBoundary . "\n";
164            $rawData .= 'Content-Type: multipart/mixed; boundary=' . $changesetBoundary . "\n\n";
165            
166                // Add operations
167                foreach ($operations as $operation)
168                {
169                    $rawData .= '--' . $changesetBoundary . "\n";
170                	$rawData .= 'Content-Type: application/http' . "\n";
171                	$rawData .= 'Content-Transfer-Encoding: binary' . "\n\n";
172                	$rawData .= $operation;
173        		}
174        		$rawData .= '--' . $changesetBoundary . '--' . "\n";
175    		    		
176    		$rawData .= '--' . $batchBoundary . '--';
177		}
178
179        // Generate URL and sign request
180        $requestUrl     = $this->_credentials->signRequestUrl($this->getBaseUrl() . $path . $queryString, $resourceType, $requiredPermission);
181        $requestHeaders = $this->_credentials->signRequestHeaders($httpVerb, $path, $queryString, $headers, $forTableStorage, $resourceType, $requiredPermission);
182
183        // Prepare request
184        $this->_httpClientChannel->resetParameters(true);
185        $this->_httpClientChannel->setUri($requestUrl);
186        $this->_httpClientChannel->setHeaders($requestHeaders);
187        $this->_httpClientChannel->setRawData($rawData);
188        
189        // Execute request
190        $response = $this->_retryPolicy->execute(
191            array($this->_httpClientChannel, 'request'),
192            array($httpVerb)
193        );
194
195        return $response;
196    }
197}