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   1  <?php
   2  /**
   3   * Zend Framework
   4   *
   5   * LICENSE
   6   *
   7   * This source file is subject to the new BSD license that is bundled
   8   * with this package in the file LICENSE.txt.
   9   * It is also available through the world-wide-web at this URL:
  10   * http://framework.zend.com/license/new-bsd
  11   * If you did not receive a copy of the license and are unable to
  12   * obtain it through the world-wide-web, please send an email
  13   * to [email protected] so we can send you a copy immediately.
  14   *
  15   * @category   Zend
  16   * @package    Zend_XmlRpc
  17   * @subpackage Generator
  18   * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
  19   * @license    http://framework.zend.com/license/new-bsd     New BSD License
  20   * @version    $Id$
  21   */
  22  
  23  /**
  24   * @var Zend_XmlRpc_Generator_GeneratorAbstract
  25   */
  26  require_once 'Zend/XmlRpc/Generator/GeneratorAbstract.php';
  27  
  28  /**
  29   * DOMDocument based implementation of a XML/RPC generator
  30   */
  31  class Zend_XmlRpc_Generator_DomDocument extends Zend_XmlRpc_Generator_GeneratorAbstract
  32  {
  33      /**
  34       * @var DOMDocument
  35       */
  36      protected $_dom;
  37  
  38      /**
  39       * @var DOMNode
  40       */
  41      protected $_currentElement;
  42  
  43      /**
  44       * Start XML element
  45       *
  46       * @param string $name
  47       * @return void
  48       */
  49      protected function _openElement($name)
  50      {
  51          $newElement = $this->_dom->createElement($name);
  52  
  53          $this->_currentElement = $this->_currentElement->appendChild($newElement);
  54      }
  55  
  56      /**
  57       * Write XML text data into the currently opened XML element
  58       *
  59       * @param string $text
  60       */
  61      protected function _writeTextData($text)
  62      {
  63          $this->_currentElement->appendChild($this->_dom->createTextNode($text));
  64      }
  65  
  66      /**
  67       * Close an previously opened XML element
  68       *
  69       * Resets $_currentElement to the next parent node in the hierarchy
  70       *
  71       * @param string $name
  72       * @return void
  73       */
  74      protected function _closeElement($name)
  75      {
  76          if (isset($this->_currentElement->parentNode)) {
  77              $this->_currentElement = $this->_currentElement->parentNode;
  78          }
  79      }
  80  
  81      /**
  82       * Save XML as a string
  83       *
  84       * @return string
  85       */
  86      public function saveXml()
  87      {
  88          return $this->_dom->saveXml();
  89      }
  90  
  91      /**
  92       * Initializes internal objects
  93       *
  94       * @return void
  95       */
  96      protected function _init()
  97      {
  98          $this->_dom = new DOMDocument('1.0', $this->_encoding);
  99          $this->_currentElement = $this->_dom;
 100      }
 101  }