<?php

/**

 * Zend Framework

 *

 * LICENSE

 *

 * This source file is subject to the new BSD license that is bundled

 * with this package in the file LICENSE.txt.

 * It is also available through the world-wide-web at this URL:

 * http://framework.zend.com/license/new-bsd

 * If you did not receive a copy of the license and are unable to

 * obtain it through the world-wide-web, please send an email

 * to license@zend.com so we can send you a copy immediately.

 *

 * @category   Zend

 * @package    Zend_Memory

 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 * @version    $Id: Memory.php 20804 2010-02-01 15:49:16Z alexander $

 */

/** Zend_Memory_Exception */

require_once 'Zend/Memory/Manager.php';

/** Zend_Memory_Value */

require_once 'Zend/Memory/Value.php';

/** Zend_Memory_Container */

require_once 'Zend/Memory/Container.php';

/** Zend_Memory_Exception */

require_once 'Zend/Cache.php';

/**

 * @category   Zend

 * @package    Zend_Memory

 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 */

class Zend_Memory

{

    /**

     * Factory

     *

     * @param string $backend backend name

     * @param array $backendOptions associative array of options for the corresponding backend constructor

     * @return Zend_Memory_Manager

     * @throws Zend_Memory_Exception

     */

    public static function factory($backend, $backendOptions = array())

    {

        if (strcasecmp($backend, 'none') == 0) {

            return new Zend_Memory_Manager();

        }

        // Look through available backendsand

        // (that allows to specify it in any case)

        $backendIsFound = false;

        foreach (Zend_Cache::$availableBackends as $zendCacheBackend) {

            if (strcasecmp($backend, $zendCacheBackend) == 0) {

                $backend = $zendCacheBackend;

                $backendIsFound = true;

                break;

            }

        }

        if (!$backendIsFound) {

            require_once 'Zend/Memory/Exception.php';

            throw new Zend_Memory_Exception("Incorrect backend ($backend)");

        }

        $backendClass = 'Zend_Cache_Backend_' . $backend;

        // For perfs reasons, we do not use the Zend_Loader::loadClass() method

        // (security controls are explicit)

        require_once str_replace('_', DIRECTORY_SEPARATOR, $backendClass) . '.php';

        $backendObject = new $backendClass($backendOptions);

        return new Zend_Memory_Manager($backendObject);

    }

}