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| 1 | <?php |
| 2 | |
| 3 | namespace oat\taoQtiTest\models; |
| 4 | |
| 5 | use qtism\data\QtiComponent; |
| 6 | use qtism\data\AssessmentItemRef; |
| 7 | |
| 8 | /** |
| 9 | * PHP Serialization Compilation Data Service. |
| 10 | * |
| 11 | * This Compilation Data Service implementation aims at compiling |
| 12 | * Delivery data as PHP serialized data (see serialize/unserialize PHP |
| 13 | * core functions). |
| 14 | */ |
| 15 | class PhpSerializationCompilationDataService extends CompilationDataService |
| 16 | { |
| 17 | public const OUTPUT_FILE_TYPE = 'php'; |
| 18 | |
| 19 | /** |
| 20 | * @return string |
| 21 | */ |
| 22 | public function getOutputFileType() |
| 23 | { |
| 24 | return self::OUTPUT_FILE_TYPE; |
| 25 | } |
| 26 | |
| 27 | public function writeCompilationData( |
| 28 | \tao_models_classes_service_StorageDirectory $compilationDirectory, |
| 29 | $path, |
| 30 | QtiComponent $object |
| 31 | ) { |
| 32 | $path .= '.' . self::OUTPUT_FILE_TYPE; |
| 33 | |
| 34 | // Clone the component to make sure observers are not saved. |
| 35 | if ($object instanceof AssessmentItemRef) { |
| 36 | $object = clone $object; |
| 37 | } |
| 38 | |
| 39 | $compilationDirectory->write( |
| 40 | $path, |
| 41 | serialize($object) |
| 42 | ); |
| 43 | } |
| 44 | |
| 45 | public function readCompilationData( |
| 46 | \tao_models_classes_service_StorageDirectory $compilationDirectory, |
| 47 | $path, |
| 48 | $cacheInfo = '' |
| 49 | ) { |
| 50 | |
| 51 | $path .= '.' . self::OUTPUT_FILE_TYPE; |
| 52 | |
| 53 | if (($compilationData = $compilationDirectory->read($path)) !== false) { |
| 54 | if (($component = @unserialize($compilationData)) !== false) { |
| 55 | return $component; |
| 56 | } else { |
| 57 | $msg = "PHP Compilation Data '" . substr($compilationData, 0, 20) . "...' in directory '" |
| 58 | . $compilationDirectory->getId() . "' at path '" . $path . "' could not be unserialized properly."; |
| 59 | throw new \common_Exception($msg); |
| 60 | } |
| 61 | } else { |
| 62 | $msg = "PHP Compilation data in directory '" . $compilationDirectory->getId() |
| 63 | . "' could not be read properly."; |
| 64 | throw new \common_Exception($msg); |
| 65 | } |
| 66 | } |
| 67 | } |