class.ilTestExportFilename.php

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<?php
/* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */

require_once 'Services/Component/classes/class.ilPlugin.php';

class ilTestExportFilename
{
        protected $test;

        protected $timestamp = 0;

        public function __construct(ilObjTest $test)
        {
                $this->test      = $test;
                $this->timestamp = time();
        }

        public function getTimestamp()
        {
                return $this->timestamp;
        }

        public function getPathname($extension, $additional = '')
        {
                if(!is_string($extension) || !strlen($extension))
                {
                        throw new ilException('Missing file extension! Please pass a file extension of type string.');
                }
                else if(substr_count($extension, '.') > 1 || (strpos($extension, '.') !== false && strpos($extension, '.') !== 0))
                {
                        throw new ilException('Please use at most one dot in your file extension.');
                }
                else if(strpos($extension, '.') === 0)
                {
                        $extension = substr($extension, 1);
                }

                if(!is_string($additional))
                {
                        
                }
                else if(strlen($additional))
                {
                        if(strpos($additional, '__') === 0)
                        {
                                throw new ilException('The additional file part may not contain __ at the beginning!');
                        }

                        $additional = '__' . $additional . '_';
                }
                else
                {
                        $additional = '_';
                }

                return $this->test->getExportDirectory() . DIRECTORY_SEPARATOR . $this->getTimestamp() . '__' . IL_INST_ID . '__' . $this->test->getType() . $additional . $this->test->getId() . '.' . $extension;
        }
}