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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* @package core
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* @subpackage backup-convert
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* @copyright 2011 Mark Nielsen <mark@moodlerooms.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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defined('MOODLE_INTERNAL') || die();
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/**
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* Factory class to create new instances of backup converters
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*/
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abstract class convert_factory {
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/**
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* Instantinates the given converter operating on a given directory
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*
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* @throws coding_exception
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* @param $name The converter name
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* @param $tempdir The temp directory to operate on
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* @param base_logger|null if the conversion should be logged, use this logger
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* @return base_converter
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*/
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public static function get_converter($name, $tempdir, $logger = null) {
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global $CFG;
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$name = clean_param($name, PARAM_SAFEDIR);
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$classfile = "$CFG->dirroot/backup/converter/$name/lib.php";
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$classname = "{$name}_converter";
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if (!file_exists($classfile)) {
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throw new coding_exception("Converter factory error: class file not found $classfile");
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}
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require_once($classfile);
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if (!class_exists($classname)) {
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throw new coding_exception("Converter factory error: class not found $classname");
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}
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return new $classname($tempdir, $logger);
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}
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}
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