/**
* This method returns an array of nodes matching the specified id.
*
* @access protected
* @param \SimpleXMLElement $root a reference to the root node
* @param string $id the object's id
* @return array an array of nodes with the specified
* id
* @throws Throwable\InvalidArgument\Exception indicates that an argument is invalid
*
* @see http://stackoverflow.com/questions/1257867/regular-expressions-and-xpath-query
*/
protected function find(\SimpleXMLElement $root, $id)
{
if (!Spring\Data\XML\Syntax::isId($id)) {
throw new Throwable\InvalidArgument\Exception('Invalid argument detected (id: :id).', array(':id' => $id));
}
$root->registerXPathNamespace('spring', Spring\Data\XML::NAMESPACE_URI);
$nodes = $root->xpath("/spring:objects/spring:object[@id='{$id}' or contains(@name,'{$id}')]");
$nodes = array_filter($nodes, function (\SimpleXMLElement &$node) use($id) {
$attributes = $node->attributes();
return isset($attributes['id']) && Spring\Data\XML::valueOf($attributes['id']) == $id || isset($attributes['name']) && in_array($id, preg_split('/(,|;|\\s)+/', Spring\Data\XML::valueOf($attributes['name'])));
});
return $nodes;
}
