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| 1 | +<?php |
| 2 | + |
| 3 | +declare(strict_types=1); |
| 4 | + |
| 5 | +namespace AutoMapper\EventListener\Symfony; |
| 6 | + |
| 7 | +use AutoMapper\Event\GenerateMapperEvent; |
| 8 | +use AutoMapper\Event\PropertyMetadataEvent; |
| 9 | +use AutoMapper\Event\SourcePropertyMetadata; |
| 10 | +use AutoMapper\Event\TargetPropertyMetadata; |
| 11 | +use AutoMapper\Transformer\FixedValueTransformer; |
| 12 | +use Symfony\Component\Serializer\Mapping\ClassDiscriminatorMapping; |
| 13 | +use Symfony\Component\Serializer\Mapping\ClassDiscriminatorResolverInterface; |
| 14 | + |
| 15 | +/** |
| 16 | + * @internal |
| 17 | + */ |
| 18 | +final readonly class ClassDiscriminatorListener |
| 19 | +{ |
| 20 | + public function __construct( |
| 21 | + private ClassDiscriminatorResolverInterface $classDiscriminator, |
| 22 | + ) { |
| 23 | + } |
| 24 | + |
| 25 | + public function __invoke(GenerateMapperEvent $event): void |
| 26 | + { |
| 27 | + $classDiscriminatorMappingSource = $this->getMappingForClass($event->mapperMetadata->source); |
| 28 | + $classDiscriminatorMappingTarget = $this->getMappingForClass($event->mapperMetadata->target); |
| 29 | + |
| 30 | + if ($classDiscriminatorMappingSource) { |
| 31 | + $sourceType = null; |
| 32 | + |
| 33 | + foreach ($classDiscriminatorMappingSource->getTypesMapping() as $type => $class) { |
| 34 | + if ($class === $event->mapperMetadata->source) { |
| 35 | + $sourceType = $type; |
| 36 | + break; |
| 37 | + } |
| 38 | + } |
| 39 | + |
| 40 | + $property = $classDiscriminatorMappingSource->getTypeProperty(); |
| 41 | + $sourceProperty = new SourcePropertyMetadata($property); |
| 42 | + $targetProperty = new TargetPropertyMetadata($property); |
| 43 | + |
| 44 | + $event->properties[$property] = new PropertyMetadataEvent( |
| 45 | + mapperMetadata: $event->mapperMetadata, |
| 46 | + source: $sourceProperty, |
| 47 | + target: $targetProperty, |
| 48 | + transformer: $sourceType ? new FixedValueTransformer($sourceType) : null, |
| 49 | + ); |
| 50 | + } |
| 51 | + |
| 52 | + if ($classDiscriminatorMappingTarget) { |
| 53 | + $property = $classDiscriminatorMappingTarget->getTypeProperty(); |
| 54 | + $sourceProperty = new SourcePropertyMetadata($property); |
| 55 | + $targetProperty = new TargetPropertyMetadata($property); |
| 56 | + |
| 57 | + $event->properties[$property] = new PropertyMetadataEvent( |
| 58 | + mapperMetadata: $event->mapperMetadata, |
| 59 | + source: $sourceProperty, |
| 60 | + target: $targetProperty, |
| 61 | + ); |
| 62 | + } |
| 63 | + } |
| 64 | + |
| 65 | + private function getMappingForClass(string $class): ?ClassDiscriminatorMapping |
| 66 | + { |
| 67 | + if (!class_exists($class) && !interface_exists($class)) { |
| 68 | + return null; |
| 69 | + } |
| 70 | + |
| 71 | + $mapping = $this->classDiscriminator->getMappingForClass($class); |
| 72 | + |
| 73 | + if ($mapping) { |
| 74 | + return $mapping; |
| 75 | + } |
| 76 | + |
| 77 | + $reflectionClass = new \ReflectionClass($class); |
| 78 | + |
| 79 | + // Include metadata from the parent class |
| 80 | + if ($parent = $reflectionClass->getParentClass()) { |
| 81 | + $mapping = $this->getMappingForClass($parent->name); |
| 82 | + |
| 83 | + if ($mapping) { |
| 84 | + return $mapping; |
| 85 | + } |
| 86 | + } |
| 87 | + |
| 88 | + // Include metadata from all implemented interfaces |
| 89 | + foreach ($reflectionClass->getInterfaces() as $interface) { |
| 90 | + if ($mapping = $this->getMappingForClass($interface->name)) { |
| 91 | + return $mapping; |
| 92 | + } |
| 93 | + } |
| 94 | + |
| 95 | + return null; |
| 96 | + } |
| 97 | +} |
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