class.ilExportFileParser.php

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<?php
/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */

include_once("./classes/class.ilSaxParser.php");
include_once "./Services/Xml/classes/class.ilXmlWriter.php";

class ilExportFileParser extends ilSaxParser
{
        protected $item_xml = "";
        
        function __construct($a_file, $a_callback_obj, $a_callback_func)
        {
                $this->callback_obj = $a_callback_obj;
                $this->callback_func = $a_callback_func;

                parent::ilSaxParser($a_file, true);
                $this->startParsing();
        }
        
        function setHandlers($a_xml_parser)
        {
                xml_set_object($a_xml_parser,$this);
                xml_set_element_handler($a_xml_parser, 'handleBeginTag', 'handleEndTag');
                xml_set_character_data_handler($a_xml_parser, 'handleCharacterData');
        }

        
        function startParsing()
        {
                parent::startParsing();
        }
        
        function handleBeginTag($a_xml_parser, $a_name, $a_attribs)
        {
                if ($this->in_export_item)
                {
                        $this->export_item_writer->xmlStartTag($a_name, $a_attribs);
                }


                switch ($a_name)
                {
                        case "exp:Export":
                                $this->entity = $a_attribs["Entity"];
                                $this->install_id = $a_attribs["InstallationId"];
                                $this->install_url = $a_attribs["InstallationUrl"];
                                $this->schema_version = $a_attribs["SchemaVersion"];
                                break;

                        case "exp:ExportItem":
                                $this->in_export_item = true;
                                $this->current_id = $a_attribs["Id"];

                                $this->export_item_writer = new ilXmlWriter();

                                $this->item_xml = "";
                                $this->expfiles[] = array("component" => $a_attribs["Component"],
                                        "path" => $a_attribs["Path"]);
                                break;
                }
        }
        
        function handleEndTag($a_xml_parser, $a_name)
        {
                switch ($a_name)
                {
                        case "exp:ExportItem":
                                $this->in_export_item = false;
                                $cf = $this->callback_func;
                                $this->callback_obj->$cf($this->entity, $this->schema_version, $this->current_id,
                                        $this->export_item_writer->xmlDumpMem(false), $this->install_id,
                                        $this->install_url);
                                break;

                }

                if ($this->in_export_item)
                {
                        $this->export_item_writer->xmlEndTag($a_name);
                }


                $this->chr_data = "";
        }
        
        function handleCharacterData($a_xml_parser,$a_data)
        {
                //$a_data = str_replace("<","&lt;",$a_data);
                //$a_data = str_replace(">","&gt;",$a_data);
                // DELETE WHITESPACES AND NEWLINES OF CHARACTER DATA
                //$a_data = preg_replace("/\n/","",$a_data);
                //$a_data = preg_replace("/\t+/","",$a_data);

                $this->chr_data .= $a_data;

                if ($this->in_export_item)
                {
                        $this->export_item_writer->xmlData($a_data);
                }

        }
        
}
?>