<?php
/**
 * REST Serializer / Unserializer JSON
 *
 * $Id$
 *
 * @author gERD Schaufelberger <gerd@schaufelberger.de>
 * @package WB
 * @subpackage base
 */

WBClass::load( 'WBRest_Serializer' );

/**
 * REST Serializer / Unserializer JSON
 *
 * @version 0.2.0
 * @package WB
 * @subpackage base
 */
class WBRest_Serializer_Json extends WBRest_Serializer
{
    /**
     * format string of server error
     *
     * @var string
     */
    protected $errorFrame =   '{
"status": "error",
"errors": [{
        "code": "%d",
        "message": "%s"
    }]
}';

    /**
     * Unserialize Request
     *
     * Convert Request body to data array
     *
     * @param string $body
     * @param string name of data element, if any
     * @return array $data
     */
    public function unserialize($body, $dataElement = 'data')
    {
        $body   =   trim($body);
        $all    =   json_decode($body, true);
        return $this->extractUnserializedElement($all, $dataElement);
    }

    /**
     * Serialize data
     *
     * Convert array data for response
     *
     * @param array $data
     * @return string $body
     */
    public function serialize($data)
    {
        return json_encode($data) . "\n";
    }
}