1<?php
2// This file is part of Moodle - http://moodle.org/
3//
4// Moodle is free software: you can redistribute it and/or modify
5// it under the terms of the GNU General Public License as published by
6// the Free Software Foundation, either version 3 of the License, or
7// (at your option) any later version.
8//
9// Moodle is distributed in the hope that it will be useful,
10// but WITHOUT ANY WARRANTY; without even the implied warranty of
11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12// GNU General Public License for more details.
13//
14// You should have received a copy of the GNU General Public License
15// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
16
17/**
18 * A scheduled task.
19 *
20 * @package    core
21 * @copyright  2013 onwards Martin Dougiamas  http://dougiamas.com
22 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
23 */
24namespace core\task;
25
26/**
27 * Simple task to run the plagiarism cron.
28 */
29class plagiarism_cron_task extends scheduled_task {
30
31    /**
32     * Get a descriptive name for this task (shown to admins).
33     *
34     * @return string
35     */
36    public function get_name() {
37        return get_string('taskplagiarismcron', 'admin');
38    }
39
40    /**
41     * Do the job.
42     * Throw exceptions on errors (the job will be retried).
43     */
44    public function execute() {
45        global $CFG;
46
47        if (!empty($CFG->enableplagiarism)) {
48            require_once($CFG->libdir.'/plagiarismlib.php');
49            $plagiarismplugins = plagiarism_load_available_plugins();
50            foreach ($plagiarismplugins as $plugin => $dir) {
51                require_once($dir . '/lib.php');
52                $plagiarismclass = "plagiarism_plugin_$plugin";
53                $plagiarismplugin = new $plagiarismclass;
54                if (method_exists($plagiarismplugin, 'cron')) {
55                    mtrace('Processing cron function for plagiarism_plugin_' . $plugin . '...', '');
56                    cron_trace_time_and_memory();
57                    mtrace('It has been detected the class ' . $plagiarismclass . ' has a legacy cron method
58                            implemented. Plagiarism plugins should implement their own schedule tasks.', '');
59                    $plagiarismplugin->cron();
60                }
61            }
62        }
63    }
64
65}
66