memcached.php

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<?php
/**
 * @package     Joomla.Platform
 * @subpackage  Session
 *
 * @copyright   Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
 * @license     GNU General Public License version 2 or later; see LICENSE
 */

defined('JPATH_PLATFORM') or die;

/**
 * Memcached session storage handler for PHP
 *
 * @package     Joomla.Platform
 * @subpackage  Session
 * @since       11.1
 */
class JSessionStorageMemcached extends JSessionStorage
{
        /**
         * Constructor
         *
         * @param   array  $options  Optional parameters.
         *
         * @since   11.1
         * @throws  RuntimeException
         */
        public function __construct($options = array())
        {
                if (!self::isSupported())
                {
                        throw new RuntimeException('Memcached Extension is not available', 404);
                }

                parent::__construct($options);

                $config = JFactory::getConfig();

                // This will be an array of loveliness
                // @todo: multiple servers
                $this->_servers = array(
                        array(
                                'host' => $config->get('memcache_server_host', 'localhost'),
                                'port' => $config->get('memcache_server_port', 11211)
                        )
                );
        }

        /**
         * Register the functions of this class with PHP's session handler
         *
         * @return  void
         *
         * @since   12.2
         */
        public function register()
        {
                ini_set('session.save_path', $this->_servers['host'] . ':' . $this->_servers['port']);
                ini_set('session.save_handler', 'memcached');
        }

        /**
         * Test to see if the SessionHandler is available.
         *
         * @return boolean  True on success, false otherwise.
         *
         * @since   12.1
         */
        static public function isSupported()
        {
                return (extension_loaded('memcached') && class_exists('Memcached'));
        }
}