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1 | <?php |
2 | |
3 | /** |
4 | * Abstract base class for serialization format support classes. |
5 | * |
6 | * PHP version 7 |
7 | * |
8 | * Copyright (C) The National Library of Finland 2022. |
9 | * |
10 | * This program is free software; you can redistribute it and/or modify |
11 | * it under the terms of the GNU General Public License version 2, |
12 | * as published by the Free Software Foundation. |
13 | * |
14 | * This program is distributed in the hope that it will be useful, |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
17 | * GNU General Public License for more details. |
18 | * |
19 | * You should have received a copy of the GNU General Public License |
20 | * along with this program; if not, write to the Free Software |
21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
22 | * |
23 | * @category VuFind |
24 | * @package MARC |
25 | * @author Ere Maijala <ere.maijala@helsinki.fi> |
26 | * @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License |
27 | * @link https://vufind.org/wiki/development:plugins:record_drivers Wiki |
28 | */ |
29 | |
30 | namespace VuFind\Marc\Serialization; |
31 | |
32 | use function call_user_func; |
33 | |
34 | /** |
35 | * Abstract base class for serialization format support classes. |
36 | * |
37 | * @category VuFind |
38 | * @package MARC |
39 | * @author Ere Maijala <ere.maijala@helsinki.fi> |
40 | * @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License |
41 | * @link https://vufind.org/wiki/development:plugins:record_drivers Wiki |
42 | */ |
43 | abstract class AbstractSerializationFile implements |
44 | SerializationFileInterface, |
45 | MessageCallbackInterface |
46 | { |
47 | /** |
48 | * Message callback |
49 | * |
50 | * @var callable |
51 | */ |
52 | protected $messageCallback = null; |
53 | |
54 | /** |
55 | * Set message callback |
56 | * |
57 | * @param callable $callback Message callback |
58 | * |
59 | * @return void |
60 | */ |
61 | public function setMessageCallback(?callable $callback): void |
62 | { |
63 | $this->messageCallback = $callback; |
64 | } |
65 | |
66 | /** |
67 | * Output a message |
68 | * |
69 | * @param string $msg Message |
70 | * @param int $level Error level (see |
71 | * https://www.php.net/manual/en/function.error-reporting.php) |
72 | * |
73 | * @return void |
74 | */ |
75 | protected function message(string $msg, int $level): void |
76 | { |
77 | if (null !== $this->messageCallback) { |
78 | call_user_func($this->messageCallback, $msg, $level); |
79 | } |
80 | } |
81 | } |