vendor/overblog/graphql-bundle/src/Resolver/TypeResolver.php line 45

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  1. <?php
  3. declare(strict_types=1);
  5. namespace Overblog\GraphQLBundle\Resolver;
  7. use GraphQL\Type\Definition\Type;
  8. use Overblog\GraphQLBundle\Event\Events;
  9. use Overblog\GraphQLBundle\Event\TypeLoadedEvent;
  10. use Symfony\Component\EventDispatcher\EventDispatcherInterface;
  11. use function sprintf;
  13. class TypeResolver extends AbstractResolver
  14. {
  15. private array $cache = [];
  16. private ?string $currentSchemaName = null;
  17. private EventDispatcherInterface $dispatcher;
  19. public function setDispatcher(EventDispatcherInterface $dispatcher): void
  20. {
  21. $this->dispatcher = $dispatcher;
  22. }
  24. public function setCurrentSchemaName(?string $currentSchemaName): void
  25. {
  26. $this->currentSchemaName = $currentSchemaName;
  27. }
  29. /**
  30. * @param mixed $solution
  31. */
  32. protected function onLoadSolution($solution): void
  33. {
  34. if (isset($this->dispatcher)) {
  35. // @phpstan-ignore-next-line (only for Symfony 4.4)
  36. $this->dispatcher->dispatch(new TypeLoadedEvent($solution, $this->currentSchemaName), Events::TYPE_LOADED);
  37. }
  38. }
  40. /**
  41. * @param string $alias
  42. *
  43. * @return Type
  44. */
  45. public function resolve($alias): ?Type
  46. {
  47. if (null === $alias) {
  48. return null;
  49. }
  51. if (!isset($this->cache[$alias])) {
  52. $type = $this->baseType($alias);
  53. $this->cache[$alias] = $type;
  54. }
  56. return $this->cache[$alias];
  57. }
  59. private function baseType(string $alias): Type
  60. {
  61. $type = $this->getSolution($alias);
  62. if (null === $type) {
  63. throw new UnresolvableException(
  64. sprintf('Could not find type with alias "%s". Did you forget to define it?', $alias)
  65. );
  66. }
  68. return $type;
  69. }
  71. protected function supportedSolutionClass(): ?string
  72. {
  73. return Type::class;
  74. }
  75. }