library/Zend/Memory.php

   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_Memory
  17  * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
  18  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  19  * @version    $Id$
  20  */
  21
  22 /** Zend_Memory_Exception */
  23 require_once 'Zend/Memory/Manager.php';
  24
  25 /** Zend_Memory_Value */
  26 require_once 'Zend/Memory/Value.php';
  27
  28 /** Zend_Memory_Container */
  29 require_once 'Zend/Memory/Container.php';
  30
  31 /** Zend_Memory_Exception */
  32 require_once 'Zend/Cache.php';
  33
  34 /**
  35  * @category   Zend
  36  * @package    Zend_Memory
  37  * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
  38  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  39  */
  40 class Zend_Memory
  41 {
  42     /**
  43      * Factory
  44      *
  45      * @param string $backend backend name
  46      * @param array $backendOptions associative array of options for the corresponding backend constructor
  47      * @return Zend_Memory_Manager
  48      * @throws Zend_Memory_Exception
  49      */
  50     public static function factory($backend, $backendOptions = array())
  51     {
  52         if (strcasecmp($backend, 'none') == 0) {
  53             return new Zend_Memory_Manager();
  54         }
  55
  56         // Look through available backendsand
  57         // (that allows to specify it in any case)
  58         $backendIsFound = false;
  59         foreach (Zend_Cache::$availableBackends as $zendCacheBackend) {
  60             if (strcasecmp($backend, $zendCacheBackend) == 0) {
  61                 $backend = $zendCacheBackend;
  62                 $backendIsFound = true;
  63                 break;
  64             }
  65         }
  66
  67         if (!$backendIsFound) {
  68             require_once 'Zend/Memory/Exception.php';
  69             throw new Zend_Memory_Exception("Incorrect backend ($backend)");
  70         }
  71
  72         $backendClass = 'Zend_Cache_Backend_' . $backend;
  73
  74         // For perfs reasons, we do not use the Zend_Loader::loadClass() method
  75         // (security controls are explicit)
  76         require_once str_replace('_', DIRECTORY_SEPARATOR, $backendClass) . '.php';
  77
  78         $backendObject = new $backendClass($backendOptions);
  79
  80         return new Zend_Memory_Manager($backendObject);
  81     }
  82 }