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| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation; under version 2 |
| 7 | * of the License (non-upgradable). |
| 8 | * |
| 9 | * This program 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 this program; if not, write to the Free Software |
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 17 | * |
| 18 | * Copyright (c) 2020 (original work) Open Assessment Technologies SA; |
| 19 | */ |
| 20 | |
| 21 | declare(strict_types=1); |
| 22 | |
| 23 | namespace oat\taoMediaManager\model\sharedStimulus\parser; |
| 24 | |
| 25 | use oat\generis\model\OntologyAwareTrait; |
| 26 | use oat\tao\model\media\MediaAsset; |
| 27 | use tao_helpers_Uri; |
| 28 | use tao_models_classes_FileNotFoundException as FileNotFoundException; |
| 29 | |
| 30 | class SharedStimulusMediaExtractor extends SharedStimulusMediaParser |
| 31 | { |
| 32 | use OntologyAwareTrait; |
| 33 | |
| 34 | /** |
| 35 | * @return string[] |
| 36 | * |
| 37 | * @throws InvalidMediaReferenceException |
| 38 | */ |
| 39 | public function extractMediaIdentifiers(string $xml): array |
| 40 | { |
| 41 | return $this->extractMedia( |
| 42 | $xml, |
| 43 | [$this, 'getMediaFileUri'] |
| 44 | ); |
| 45 | } |
| 46 | |
| 47 | /** |
| 48 | * @throws InvalidMediaReferenceException |
| 49 | */ |
| 50 | public function assertMediaFileExists(string $xml): void |
| 51 | { |
| 52 | $this->extractMedia( |
| 53 | $xml, |
| 54 | [$this, 'extractImageFileInfo'] |
| 55 | ); |
| 56 | } |
| 57 | |
| 58 | /** |
| 59 | * @throws InvalidMediaReferenceException |
| 60 | */ |
| 61 | protected function extractImageFileInfo(MediaAsset $asset): void |
| 62 | { |
| 63 | $assetIdentifier = tao_helpers_Uri::decode($asset->getMediaIdentifier()); |
| 64 | |
| 65 | try { |
| 66 | $asset->getMediaSource()->getFileInfo($assetIdentifier); |
| 67 | } catch (FileNotFoundException $exception) { |
| 68 | throw new InvalidMediaReferenceException($assetIdentifier); |
| 69 | } |
| 70 | } |
| 71 | |
| 72 | /** |
| 73 | * @throws InvalidMediaReferenceException |
| 74 | */ |
| 75 | protected function getMediaFileUri(MediaAsset $asset): string |
| 76 | { |
| 77 | $assetIdentifier = tao_helpers_Uri::decode($asset->getMediaIdentifier()); |
| 78 | |
| 79 | if (!$this->getResource($assetIdentifier)->exists()) { |
| 80 | throw new InvalidMediaReferenceException($assetIdentifier); |
| 81 | } |
| 82 | |
| 83 | return $assetIdentifier; |
| 84 | } |
| 85 | } |