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<?php
/**
* @version $Id: xml.php 30069 2016-03-08 17:45:33Z matias $
* @author RocketTheme http://www.rockettheme.com
* @copyright Copyright (C) 2007 - 2016 RocketTheme, LLC
* @license http://www.gnu.org/licenses/gpl-2.0.html GNU/GPLv2 only
*
* derived from Joomla with original copyright and license
* @copyright Copyright (C) 2005 - 2010 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
// No direct access
defined('GANTRY_VERSION') or die;
/**
* XML format handler for GantryRegistry.
*
* @package Joomla.Framework
* @subpackage Registry
* @since 1.5
*/
class GantryRegistryFormatXML extends GantryRegistryFormat
{
/**
* Converts an object into an XML formatted string.
* - If more than two levels of nested groups are necessary, since INI is not
* useful, XML or another format should be used.
*
* @param object Data source object.
* @param array Options used by the formatter.
*
* @return string XML formatted string.
* @since 1.5
*/
public function objectToString($object, $options = array())
{
// Initialise variables.
$rootName = (isset($options['name'])) ? $options['name'] : 'registry';
$nodeName = (isset($options['nodeName'])) ? $options['nodeName'] : 'node';
// Create the root node.
$root = simplexml_load_string('<' . $rootName . ' />');
// Iterate over the object members.
foreach ((array)$object as $k => $v) {
if (is_scalar($v)) {
$n = $root->addChild($nodeName, $v);
$n->addAttribute('name', $k);
$n->addAttribute('type', gettype($v));
} else {
$n = $root->addChild($nodeName);
$n->addAttribute('name', $k);
$n->addAttribute('type', gettype($v));
$this->_getXmlChildren($n, $v, $nodeName);
}
}
return $root->asXML();
}
/**
* Parse a XML formatted string and convert it into an object.
*
* @param string XML formatted string to convert.
* @param array Options used by the formatter.
*
* @return object Data object.
* @since 1.5
*/
public function stringToObject($data, $options = array())
{
// Initialize variables.
$obj = new stdClass;
// Parse the XML string.
$xml = simplexml_load_string($data);
foreach ($xml->children() as $node) {
$obj->{$node['name']} = $this->_getValueFromNode($node);
}
return $obj;
}
/**
* Method to get a PHP native value for a SimpleXMLElement object. -- called recursively
*
* @param object SimpleXMLElement object for which to get the native value.
*
* @return mixed Native value of the SimpleXMLElement object.
* @since 2.0
*/
protected function _getValueFromNode($node)
{
switch ($node['type']) {
case 'integer':
$value = (string)$node;
return (int)$value;
break;
case 'string':
return (string)$node;
break;
case 'boolean':
$value = (string)$node;
return (bool)$value;
break;
case 'double':
$value = (string)$node;
return (float)$value;
break;
case 'array':
$value = array();
foreach ($node->children() as $child) {
$value[(string)$child['name']] = $this->_getValueFromNode($child);
}
break;
default:
$value = new stdClass;
foreach ($node->children() as $child) {
$value->{$child['name']} = $this->_getValueFromNode($child);
}
break;
}
return $value;
}
/**
* Method to build a level of the XML string -- called recursively
*
* @param object SimpleXMLElement object to attach children.
* @param object Object that represents a node of the xml document.
* @param string The name to use for node elements.
*
* @return void
* @since 2.0
*/
protected function _getXmlChildren(& $node, $var, $nodeName)
{
// Iterate over the object members.
foreach ((array)$var as $k => $v) {
if (is_scalar($v)) {
$n = $node->addChild($nodeName, $v);
$n->addAttribute('name', $k);
$n->addAttribute('type', gettype($v));
} else {
$n = $node->addChild($nodeName);
$n->addAttribute('name', $k);
$n->addAttribute('type', gettype($v));
$this->_getXmlChildren($n, $v, $nodeName);
}
}
}
}