class.ilMDXMLCopier.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2001 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. |
        +-----------------------------------------------------------------------------+
*/


include_once 'Services/MetaData/classes/class.ilMDSaxParser.php';
include_once 'Services/MetaData/classes/class.ilMD.php';

class ilMDXMLCopier extends ilMDSaxParser
{
        var $filter = array();

        function ilMDXMLCopier($content,$a_rbac_id,$a_obj_id,$a_obj_type)
        {

                $this->setMDObject(new ilMD($a_rbac_id,$a_obj_id,$a_obj_type));

                parent::ilMDSaxParser();
                $this->setXMLContent($content);

                // set filter of tags which are handled in this class
                $this->__setFilter();

        }
        function setHandlers($a_xml_parser)
        {
                xml_set_object($a_xml_parser,$this);
                xml_set_element_handler($a_xml_parser,'handlerBeginTag','handlerEndTag');
                xml_set_character_data_handler($a_xml_parser,'handlerCharacterData');
        }

        function handlerBeginTag($a_xml_parser,$a_name,$a_attribs)
        {
                if($this->in_meta_data and !$this->__inFilter($a_name))
                {
                        parent::handlerBeginTag($a_xml_parser,$a_name,$a_attribs);
                        return true;
                }
                        

                switch($a_name)
                {
                        case 'MetaData':
                                $this->in_meta_data = true;
                                parent::handlerBeginTag($a_xml_parser,$a_name,$a_attribs);
                                break;

                        case 'Identifier':
                                $par =& $this->__getParent();
                                $this->md_ide =& $par->addIdentifier();
                                $this->md_ide->setCatalog($a_attribs['Catalog']);
                                $this->md_ide->setEntry('il__'.$this->md->getObjType().'_'.$this->md->getObjId());
                                $this->md_ide->save();
                                $this->__pushParent($this->md_ide);
                                break;
                }
                return true;
        }
        function handlerEndTag($a_xml_parser,$a_name)
        {
                if($this->in_meta_data  and !$this->__inFilter($a_name))
                {
                        parent::handlerEndTag($a_xml_parser,$a_name);
                        return true;
                }
                switch($a_name)
                {
                        case 'Identifier':
                                $par =& $this->__getParent();
                                $par->update();
                                $this->__popParent();
                                break;
                                

                        case 'MetaData':
                                $this->in_meta_data = false;
                                parent::handlerEndTag($a_xml_parser,$a_name);
                                break;
                }
                return true;
        }

        function handlerCharacterData($a_xml_parser,$a_data)
        {
                if($this->in_meta_data)
                {
                        parent::handlerCharacterData($a_xml_parser,$a_data);
                        return true;
                }
        }
        /*
         * Set filter of tags which are handled in this class.
         * @access protected
         * 
         */
        function __setFilter()
        {
                $this->filter[] = 'Identifier';
        }
        /*
         * Check if tag is filtered
         * @access protected
         * 
         */
        function __inFilter($a_tag_name)
        {
                return in_array($a_tag_name,$this->filter);
        }
}
?>