aleph1.co.uk Git - yaffs-website/blob - web/core/modules/serialization/src/EntityResolver/ChainEntityResolver.php

   1 <?php
   2
   3 namespace Drupal\serialization\EntityResolver;
   4
   5 use Symfony\Component\Serializer\Normalizer\NormalizerInterface;
   6
   7 /**
   8  * Resolver delegating the entity resolution to a chain of resolvers.
   9  */
  10 class ChainEntityResolver implements ChainEntityResolverInterface {
  11
  12   /**
  13    * The concrete resolvers.
  14    *
  15    * @var \Drupal\serialization\EntityResolver\EntityResolverInterface[]
  16    */
  17   protected $resolvers = [];
  18
  19   /**
  20    * Constructs a ChainEntityResolver object.
  21    *
  22    * @param \Drupal\serialization\EntityResolver\EntityResolverInterface[] $resolvers
  23    *   The array of concrete resolvers.
  24    */
  25   public function __construct(array $resolvers = []) {
  26     $this->resolvers = $resolvers;
  27   }
  28
  29   /**
  30    * {@inheritdoc}
  31    */
  32   public function addResolver(EntityResolverInterface $resolver) {
  33     $this->resolvers[] = $resolver;
  34   }
  35
  36   /**
  37    * {@inheritdoc}
  38    */
  39   public function resolve(NormalizerInterface $normalizer, $data, $entity_type) {
  40     foreach ($this->resolvers as $resolver) {
  41       $resolved = $resolver->resolve($normalizer, $data, $entity_type);
  42       if (isset($resolved)) {
  43         return $resolved;
  44       }
  45     }
  46   }
  47
  48 }