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<?php
/**
 * J!Dump
 * @version      $Id$
 * @package      jdump
 * @copyright    Copyright (C) 2006-2011 Mathias Verraes. All rights
reserved.
 * @license      GNU/GPL
 * @link         https://github.com/mathiasverraes/jdump
 */
defined( '_JEXEC' ) or die( 'Restricted access' );

class DumpNode 
{

	static function & getNode($var, $name, $type = null, $level = 0,
$source = null) 
	{

		$node['name']       = $name;
		$node['type']       = strtolower($type ? $type : gettype( $var
));
		$node['children']   = array();
		$node['level']      = $level;
				$node['source']     = $source;

		// expand the var according to type
		switch ($node['type']) 
		{
			case 'backtrace': // Skip source when backtrace, and change to
array
				$node['source'] = null;
				$node['type']   = 'array';

			case 'array':
				if ($level >= DumpHelper::getMaxDepth()) 
				{
					$node['children'][] = DumpNode::getNode('Maximum depth
reached', null, 'message');
				} 
				else 
				{
					ksort($var);
					foreach ($var as $key => $value) 
					{
						$node['children'][] = DumpNode::getNode($value, $key, null,
$level + 1);
					}
				}
				break;

			case 'object':
				if ($level >= DumpHelper::getMaxDepth()) 
				{
					$node['children'][] = DumpNode::getNode('Maximum depth
reached', null, 'message');
				} 
				else 
				{
					$object_vars = get_object_vars($var) ;
					$methods     = get_class_methods($var) ;
					if (count($object_vars)) 
					{
						$node['children'][] = DumpNode::getNode($var,
'Properties', 'properties', $level);
					}
					if (count($methods)) 
					{
						$node['children'][] = DumpNode::getNode($var,
'Methods', 'methods', $level);
					}
				}
				$node['classname'] = get_class($var);
				break;

			case 'properties':
				$object_vars = get_object_vars($var);
				ksort($object_vars);
				foreach ($object_vars as $key => $value) 
				{
					$node['children'][] = DumpNode::getNode($value, $key, null,
$level + 1);
				}
				break;

			case 'methods':
				$methods = get_class_methods($var);
				sort($methods);
				foreach ($methods as $value) 
				{
					$node['children'][] = DumpNode::getNode(null, $value,
'method');
				}
				break;


			case 'string':
				jimport('joomla.application.component.helper');
				// settings from config.xml
				$dumpConfig		= JComponentHelper::getParams('com_dump');
				$trimstrings	= $dumpConfig->get('trimstrings', 1);
				$maxstrlength	= $dumpConfig->get('maxstrlength', 150);

				//original string length
				$length			= JString::strlen($var);

				// trim string if needed
				if ($trimstrings AND $length > $maxstrlength) 
				{
					$var = JString::substr($var, 0, $maxstrlength) . '...';
					$node['length'] = $length;
				}

				$node['value']	= $var;
				break;

			default:
				$node['value'] = & $var;
				break;

		}

		return $node;
	}

}