<?php
Class XMLTransformer {
private static $directory = "./xml_data/input/";
private static $templates = array();
private static $xmlparser;
private static $MAXRECURSION = 6;
private static $tmp_recursion = 0;
/*
* Analyses XML-Structure
* returns an Array
*/
/*
* append tag to a function(Template). This way when ever a tag appears
* the registered function should tell what to do with it.
*/
public static function appendTemplate($tagname, $staticreference) {
if(!is_string($staticreference)) {
//example : call_user_func('MyClass::myCallbackMethod');
die( 'appendTemplate($tagname, $staticreference) '
.'$staticreference has to be a string like'
.'MyClass::MyMethod()');
}
self::$templates[$tagname]=$staticreference;
}
/*
*
*/
public static function getXMLdata($filename){
$filepath = self::$directory.$filename;
$xmlarray = Array();
self::$xmlparser = simplexml_load_file($filepath);
$xmlarray = self::readXML(self::$xmlparser);
XMLProcessor::output();
return $xmlarray;
}
private static function readXML($xmlnode) {
$xmlarray = array();
foreach ($xmlnode as $xmlobject) {
$node = $xmlobject;
self::applyMatchingTemplate($node);
/*
* Attributes
foreach($node->attributes() as $attribute_name=>$attribute_value) {
echo '['.$attribute_name.":".$attribute_value.'] <br />';
}
*/
/*
* Output Children
*
*/
if(($node->children()!=NULL)
&& (self::$tmp_recursion < self::$MAXRECURSION)) {
self::$tmp_recursion++;
self::readXML($xmlobject->children());
self::$tmp_recursion--;
}//Node
}//endif xmlnode
}
/*
* The actual Call of the template, the tag-node is given as Parameter.
* If a template is assigned to it, call this template/function
*
*/
public static function applyMatchingTemplate($node) {
// Type 2: Static class method call
foreach (self::$templates as $tag=>$function) {
if($node->getName()==$tag) {
call_user_func($function, $node);
//return;
}
}
}
}
?>
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