<?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_XmlRpc

 * @subpackage Generator

 * @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: DomDocument.php 20785 2010-01-31 09:43:03Z mikaelkael $

 */

/**

 * @var Zend_XmlRpc_Generator_GeneratorAbstract

 */

require_once 'Zend/XmlRpc/Generator/GeneratorAbstract.php';

/**

 * DOMDocument based implementation of a XML/RPC generator

 */

class Zend_XmlRpc_Generator_DomDocument extends Zend_XmlRpc_Generator_GeneratorAbstract

{

    /**

     * @var DOMDocument

     */

    protected $_dom;

    /**

     * @var DOMNode

     */

    protected $_currentElement;

    /**

     * Start XML element

     *

     * @param string $name

     * @return void

     */

    protected function _openElement($name)

    {

        $newElement = $this->_dom->createElement($name);

        $this->_currentElement = $this->_currentElement->appendChild($newElement);

    }

    /**

     * Write XML text data into the currently opened XML element

     *

     * @param string $text

     */

    protected function _writeTextData($text)

    {

        $this->_currentElement->appendChild($this->_dom->createTextNode($text));

    }

    /**

     * Close an previously opened XML element

     *

     * Resets $_currentElement to the next parent node in the hierarchy

     *

     * @param string $name

     * @return void

     */

    protected function _closeElement($name)

    {

        if (isset($this->_currentElement->parentNode)) {

            $this->_currentElement = $this->_currentElement->parentNode;

        }

    }

    /**

     * Save XML as a string

     *

     * @return string

     */

    public function saveXml()

    {

        return $this->_dom->saveXml();

    }

    /**

     * Initializes internal objects

     *

     * @return void

     */

    protected function _init()

    {

        $this->_dom = new DOMDocument('1.0', $this->_encoding);

        $this->_currentElement = $this->_dom;

    }

}