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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) 2025 (original work) Open Assessment Technologies SA; |
| 19 | */ |
| 20 | |
| 21 | declare(strict_types=1); |
| 22 | |
| 23 | namespace oat\tao\model\metadata\reader; |
| 24 | |
| 25 | use oat\generis\model\data\Ontology; |
| 26 | use oat\tao\model\metadata\exception\MetadataNotExist; |
| 27 | |
| 28 | class ResourceMetadataService |
| 29 | { |
| 30 | private Ontology $ontology; |
| 31 | |
| 32 | public function __construct(Ontology $ontology) |
| 33 | { |
| 34 | $this->ontology = $ontology; |
| 35 | } |
| 36 | |
| 37 | public function getResourceMetadataValue(string $resourceUri, string $metadataUri): string |
| 38 | { |
| 39 | $resource = $this->ontology->getResource($resourceUri); |
| 40 | $property = $this->ontology->getProperty($metadataUri); |
| 41 | |
| 42 | if (!($resource->exists() && $property->exists())) { |
| 43 | throw new MetadataNotExist('Resource or property does not exist'); |
| 44 | } |
| 45 | |
| 46 | return (string) $resource->getOnePropertyValue($property) ?? ''; |
| 47 | } |
| 48 | } |