ONIXParserDOMHandler.inc.php

<?php
 
import('lib.pkp.classes.xml.XMLParserDOMHandler');
import('lib.pkp.classes.xml.XMLNode');
 
class ONIXParserDOMHandler extends XMLParserDOMHandler {
 
   var $_listName = null;
 
   var $_foundRequestedList = false;
 
   var $_listItems = null;
 
   var $_currentValue = null;
 
   var $_insideDocumentation = false;
 
   function __construct($listName) {
      parent::__construct();
      $this->_listName = $listName;
      $this->_listItems = array();
   }
 
   function startElement($parser, $tag, $attributes) {
      $this->currentData = null;
 
      switch ($tag) {
         case 'xs:simpleType':
            if ($attributes['name'] == $this->_listName) {
               $this->_foundRequestedList = true;
            }
            break;
         case 'xs:enumeration':
            if ($this->_foundRequestedList) {
               $this->_currentValue = $attributes['value'];
               $this->_listItems[$this->_currentValue] = array(); // initialize the array cell
            }
            break;
         case 'xs:documentation':
            if ($this->_foundRequestedList) {
               $this->_insideDocumentation = true;
            }
            break;
      }
 
      $node = new XMLNode($tag);
      $node->setAttributes($attributes);
      if (isset($this->currentNode)) {
         $this->currentNode->addChild($node);
         $node->setParent($this->currentNode);
 
      } else {
         $this->rootNode = $node;
      }
 
      $this->currentNode = $node;
   }
 
   function characterData($parser, $data) {
      if ($this->_insideDocumentation) {
         if (count($this->_listItems[$this->_currentValue]) == 1)
            $this->_listItems[$this->_currentValue][0] .= $data;
         else
            $this->_listItems[$this->_currentValue][0] = $data;
      }
   }
 
   function endElement($parser, $tag) {
 
      switch ($tag) {
         case 'xs:simpleType':
            $this->_foundRequestedList = false;
            break;
         case 'xs:documentation':
            $this->_insideDocumentation = false;
            break;
      }
   }
 
   function getResult() {
      return array($this->_listName => $this->_listItems);
   }
}