vendor/sulu/sulu/src/Sulu/Component/DocumentManager/Subscriber/Core/InstantiatorSubscriber.php line 76

Open in your IDE?
  1. <?php
  3. /*
  4. * This file is part of Sulu.
  5. *
  6. * (c) Sulu GmbH
  7. *
  8. * This source file is subject to the MIT license that is bundled
  9. * with this source code in the file LICENSE.
  10. */
  12. namespace Sulu\Component\DocumentManager\Subscriber\Core;
  14. use PHPCR\NodeInterface;
  15. use Sulu\Component\DocumentManager\Event\CreateEvent;
  16. use Sulu\Component\DocumentManager\Event\HydrateEvent;
  17. use Sulu\Component\DocumentManager\Events;
  18. use Sulu\Component\DocumentManager\Metadata;
  19. use Sulu\Component\DocumentManager\MetadataFactoryInterface;
  20. use Symfony\Component\EventDispatcher\EventSubscriberInterface;
  22. /**
  23. * Responsible for instantiating documents from PHPCR nodes and
  24. * setting the document in the event so that other listeners can
  25. * take further actions (such as hydrating it for example).
  26. *
  27. * NOTE: This should always be the first thing to be called
  28. */
  29. class InstantiatorSubscriber implements EventSubscriberInterface
  30. {
  31. /**
  32. * @var MetadataFactoryInterface
  33. */
  34. private $metadataFactory;
  36. public function __construct(
  37. MetadataFactoryInterface $metadataFactory
  38. ) {
  39. $this->metadataFactory = $metadataFactory;
  40. }
  42. public static function getSubscribedEvents()
  43. {
  44. return [
  45. Events::HYDRATE => ['handleHydrate', 500],
  46. Events::CREATE => ['handleCreate', 500],
  47. ];
  48. }
  50. public function handleHydrate(HydrateEvent $event)
  51. {
  52. // don't need to instantiate the document if it is already existing.
  53. if ($event->hasDocument()) {
  54. return;
  55. }
  57. $node = $event->getNode();
  59. $document = $this->getDocumentFromNode($node);
  60. $event->setDocument($document);
  61. }
  63. public function handleCreate(CreateEvent $event)
  64. {
  65. $metadata = $this->metadataFactory->getMetadataForAlias($event->getAlias());
  66. $document = $this->instantiateFromMetadata($metadata);
  67. $event->setDocument($document);
  68. }
  70. /**
  71. * Instantiate a new document. The class is determined from
  72. * the mixins present in the PHPCR node for legacy reasons.
  73. *
  74. * @return object
  75. */
  76. private function getDocumentFromNode(NodeInterface $node)
  77. {
  78. $metadata = $this->metadataFactory->getMetadataForPhpcrNode($node);
  80. return $this->instantiateFromMetadata($metadata);
  81. }
  83. /**
  84. * @return object
  85. */
  86. private function instantiateFromMetadata(Metadata $metadata)
  87. {
  88. $class = $metadata->getClass();
  90. if (!\class_exists($class)) {
  91. throw new \RuntimeException(\sprintf(
  92. 'Document class "%s" does not exist', $class
  93. ));
  94. }
  96. $document = new $class();
  98. return $document;
  99. }
  100. }