class.ilAdvancedMDRecordExportFiles.php

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<?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. |
        +-----------------------------------------------------------------------------+
*/
 
class ilAdvancedMDRecordExportFiles
{
        protected $export_dir = '';
        
        public function __construct($a_obj_id = null)
        {
                $this->export_dir = ilUtil::getDataDir().'/ilAdvancedMetaData/export';
                if($a_obj_id)
                {
                        $this->export_dir .= "_".$a_obj_id;
                }
                $this->init();
        }
        
        public function readFilesInfo()
        {
                $file_info = array();
                foreach($this->getFiles() as $name => $data)
                {
                        if($data['type'] != 'file')
                        {
                                continue;
                        }
                        $file_parts = explode('.',$name);
                        if(!is_numeric($file_parts[0]) or (strcmp('xml',$file_parts[1]) != 0))
                        {
                                continue;
                        }
                        $file_info[$file_parts[0]]['size'] = $data['size'];
                        $file_info[$file_parts[0]]['date'] = $file_parts[0];    
                        
                        if($xml = simplexml_load_file($this->export_dir.'/'.$name))
                        {
                                $records = array();
                                foreach($xml->xpath('Record/Title') as $title)
                                {
                                        $records[] = (string) $title;                                                   
                                }
                                $file_info[$file_parts[0]]['name'] = $records;  
                        }
                }
                return $file_info ? $file_info : array();
        }
        
        public function getFiles()
        {
                if(!@is_dir($this->export_dir))
                {
                        return array();
                }
                foreach(ilUtil::getDir($this->export_dir) as $file_name => $file_data)
                {
                        $files[$file_name] = $file_data;
                }
                return $files ? $files : array();
        }
        
        public function create($a_xml)
        {
                 global $ilLog,$ilErr;
                 
                 if(!$fp = @fopen($this->export_dir.'/'.time().'.xml','w+'))
                 {
                        $ilLog->write(__METHOD__.': Cannot open file '.$this->export_dir.'/'.time().'.xml');
                        $ilErr->raiseError('Cannot write export file.',$ilErr->WARNING);
                 }
                 
                 @fwrite($fp,$a_xml);
                 @fclose($fp);
        }
        
        public function deleteByFileId($a_timest)
        {
                global $ilLog;
                
                if(!unlink($this->export_dir.'/'.$a_timest.'.xml'))
                {
                        $ilLog->write(__METHOD__.': Cannot delete file '.$this->export_dir.'/'.$a_timest.'.xml');
                        return false;
                }
                return true; 
        }
        
        public function getAbsolutePathByFileId($a_file_basename)
        {
                global $ilLog;
                
                if(!@file_exists($this->export_dir.'/'.$a_file_basename.'.xml'))
                {
                        $ilLog->write(__METHOD__.': Cannot find file '.$this->export_dir.'/'.$a_file_basename.'.xml');
                        return false;
                }
                return $this->export_dir.'/'.$a_file_basename.'.xml';
        }
        
        private function init()
        {
                if(!@is_dir($this->export_dir))
                {
                        ilUtil::makeDirParents($this->export_dir);
                }
        }
}
?>