<?php
/*
	+-----------------------------------------------------------------------------+
	| ILIAS open source                                                           |
	+-----------------------------------------------------------------------------+
	| Copyright (c) 1998-2006 ILIAS open source, University of Cologne            |
	|                                                                             |
	| This program is free software; you can redistribute it and/or               |
	| modify it under the terms of the GNU General Public License                 |
	| as published by the Free Software Foundation; either version 2              |
	| of the License, or (at your option) any later version.                      |
	|                                                                             |
	| This program is distributed in the hope that it will be useful,             |
	| but WITHOUT ANY WARRANTY; without even the implied warranty of              |
	| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
	| GNU General Public License for more details.                                |
	|                                                                             |
	| You should have received a copy of the GNU General Public License           |
	| along with this program; if not, write to the Free Software                 |
	| Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
	+-----------------------------------------------------------------------------+
*/

/** 
* Parses Lucene search results
* 
* @author Stefan Meyer <meyer@leifos.com>
* @version $Id$
* 
*
* @ingroup ServicesSearch 
*/
class ilLuceneSearchResultParser
{
	private $xml;
	
	/**
	 * Constructor 
	 * @param string search result
	 * @return
	 */
	public function __construct($a_xml)
	{
		$this->xml = $a_xml;	 
	}
	

	/**
	 * get xml
	 * @param
	 * @return
	 */
	public function getXML()
	{
		return $this->xml;		 
	}
	
	/**
	 * Parse XML 
	 * @param object ilLuceneSearchResult
	 * @return
	 */
	public function parse(ilLuceneSearchResult $result)
	{
		if(!strlen($this->getXML())) {
			return $result;
		}
		$hits = new SimpleXMLElement($this->getXML());
		$result->setLimit($result->getLimit() +  (string) $hits['limit']);
		$result->setMaxScore( (string) $hits['maxScore']);
		$result->setTotalHits((string) $hits['totalHits']);
		
		foreach($hits->children() as $object)
		{
			$result->addObject((string) $object['id'],(float) $object['absoluteScore']);
		}
		return $result;
	}
}
?>
