<?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_Application

 * @subpackage Resource

 * @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: Session.php 20814 2010-02-01 20:13:08Z freak $

 */

/**

 * @see Zend_Application_Resource_ResourceAbstract

 */

require_once 'Zend/Application/Resource/ResourceAbstract.php';

/**

 * Resource for setting session options

 *

 * @uses       Zend_Application_Resource_ResourceAbstract

 * @category   Zend

 * @package    Zend_Application

 * @subpackage Resource

 * @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_Application_Resource_Session extends Zend_Application_Resource_ResourceAbstract

{

    /**

     * Save handler to use

     *

     * @var Zend_Session_SaveHandler_Interface

     */

    protected $_saveHandler = null;

    /**

     * Set session save handler

     *

     * @param  array|string|Zend_Session_SaveHandler_Interface $saveHandler

     * @return Zend_Application_Resource_Session

     * @throws Zend_Application_Resource_Exception When $saveHandler is no valid save handler

     */

    public function setSaveHandler($saveHandler)

    {

        $this->_saveHandler = $saveHandler;

        return $this;

    }

    /**

     * Get session save handler

     *

     * @return Zend_Session_SaveHandler_Interface

     */

    public function getSaveHandler()

    {

        if (!$this->_saveHandler instanceof Zend_Session_SaveHandler_Interface) {

            if (is_array($this->_saveHandler)) {

                if (!array_key_exists('class', $this->_saveHandler)) {

                    throw new Zend_Application_Resource_Exception('Session save handler class not provided in options');

                }

                $options = array();

                if (array_key_exists('options', $this->_saveHandler)) {

                    $options = $this->_saveHandler['options'];

                }

                $this->_saveHandler = $this->_saveHandler['class'];

                $this->_saveHandler = new $this->_saveHandler($options);

            } elseif (is_string($this->_saveHandler)) {

                $this->_saveHandler = new $this->_saveHandler();

            }

            if (!$this->_saveHandler instanceof Zend_Session_SaveHandler_Interface) {

                throw new Zend_Application_Resource_Exception('Invalid session save handler');

            }

        }

        return $this->_saveHandler;

    }

    /**

     * @return bool

     */

    protected function _hasSaveHandler()

    {

        return ($this->_saveHandler !== null);

    }

    /**

     * Defined by Zend_Application_Resource_Resource

     *

     * @return void

     */

    public function init()

    {

        $options = array_change_key_case($this->getOptions(), CASE_LOWER);

        if (isset($options['savehandler'])) {

            unset($options['savehandler']);

        }

        if (count($options) > 0) {

            Zend_Session::setOptions($options);

        }

        if ($this->_hasSaveHandler()) {

            Zend_Session::setSaveHandler($this->getSaveHandler());

        }

    }

}