<?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_Serializer

 * @subpackage Adapter

 * @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: Amf0.php 20574 2010-01-24 17:39:14Z mabe $

 */

/** @see Zend_Serializer_Adapter_AdapterAbstract */

require_once 'Zend/Serializer/Adapter/AdapterAbstract.php';

/** @see Zend_Amf_Parse_OutputStream */

require_once 'Zend/Amf/Parse/OutputStream.php';

/** @see Zend_Amf_Parse_Amf0_Serializer */

require_once 'Zend/Amf/Parse/Amf0/Serializer.php';

/** @see Zend_Amf_Parse_InputStream */

require_once 'Zend/Amf/Parse/InputStream.php';

/** @see Zend_Amf_Parse_Amf0_Deserializer */

require_once 'Zend/Amf/Parse/Amf0/Deserializer.php';

/**

 * @category   Zend

 * @package    Zend_Serializer

 * @subpackage Adapter

 * @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_Serializer_Adapter_Amf0 extends Zend_Serializer_Adapter_AdapterAbstract

{

    /**

     * Serialize a PHP value to AMF0 format

     * 

     * @param  mixed $value 

     * @param  array $opts 

     * @return string

     * @throws Zend_Serializer_Exception

     */

    public function serialize($value, array $opts = array())

    {

        try  {

            $stream     = new Zend_Amf_Parse_OutputStream();

            $serializer = new Zend_Amf_Parse_Amf0_Serializer($stream);

            $serializer->writeTypeMarker($value);

            return $stream->getStream();

        } catch (Exception $e) {

            require_once 'Zend/Serializer/Exception.php';

            throw new Zend_Serializer_Exception('Serialization failed by previous error', 0, $e);

        }

    }

    /**

     * Unserialize an AMF0 value to PHP

     * 

     * @param  mixed $value 

     * @param  array $opts 

     * @return void

     * @throws Zend_Serializer_Exception

     */

    public function unserialize($value, array $opts = array())

    {

        try {

            $stream       = new Zend_Amf_Parse_InputStream($value);

            $deserializer = new Zend_Amf_Parse_Amf0_Deserializer($stream);

            return $deserializer->readTypeMarker();

        } catch (Exception $e) {

            require_once 'Zend/Serializer/Exception.php';

            throw new Zend_Serializer_Exception('Unserialization failed by previous error', 0, $e);

        }

    }

}