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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 | } |