public function JsonApiDocumentTopLevelNormalizer::normalize in Drupal 8

Same name and namespace in other branches

1. 9 core/modules/jsonapi/src/Normalizer/JsonApiDocumentTopLevelNormalizer.php \Drupal\jsonapi\Normalizer\JsonApiDocumentTopLevelNormalizer::normalize()

File

core/modules/jsonapi/src/Normalizer/JsonApiDocumentTopLevelNormalizer.php, line 173

Class

JsonApiDocumentTopLevelNormalizer

Normalizes the top-level document according to the JSON:API specification.

Namespace

Drupal\jsonapi\Normalizer

Code

public function normalize($object, $format = NULL, array $context = []) {
  assert($object instanceof JsonApiDocumentTopLevel);
  $data = $object
    ->getData();
  $document['jsonapi'] = CacheableNormalization::permanent([
    'version' => JsonApiSpec::SUPPORTED_SPECIFICATION_VERSION,
    'meta' => [
      'links' => [
        'self' => [
          'href' => JsonApiSpec::SUPPORTED_SPECIFICATION_PERMALINK,
        ],
      ],
    ],
  ]);
  if ($data instanceof ErrorCollection) {
    $document['errors'] = $this
      ->normalizeErrorDocument($object, $format, $context);
  }
  else {

    // Add data.
    $document['data'] = $this->serializer
      ->normalize($data, $format, $context);

    // Add includes.
    $document['included'] = $this->serializer
      ->normalize($object
      ->getIncludes(), $format, $context)
      ->omitIfEmpty();

    // Add omissions and metadata.
    $normalized_omissions = $this
      ->normalizeOmissionsLinks($object
      ->getOmissions(), $format, $context);
    $meta = !$normalized_omissions instanceof CacheableOmission ? array_merge($object
      ->getMeta(), [
      'omitted' => $normalized_omissions
        ->getNormalization(),
    ]) : $object
      ->getMeta();
    $document['meta'] = (new CacheableNormalization($normalized_omissions, $meta))
      ->omitIfEmpty();
  }

  // Add document links.
  $document['links'] = $this->serializer
    ->normalize($object
    ->getLinks(), $format, $context)
    ->omitIfEmpty();

  // Every JSON:API document contains absolute URLs.
  return CacheableNormalization::aggregate($document)
    ->withCacheableDependency((new CacheableMetadata())
    ->addCacheContexts([
    'url.site',
  ]));
}