StringNormalizer.php

<?php

declare (strict_types=1);
namespace Drupal\jsonapi_test_data_type\Normalizer;

use Drupal\Core\TypedData\Plugin\DataType\StringData;
use Drupal\serialization\Normalizer\NormalizerBase;
use Symfony\Component\Serializer\Normalizer\DenormalizerInterface;

/**
 * Normalizes string data weirdly: replaces 'super' with 'NOT' and vice versa.
 */
class StringNormalizer extends NormalizerBase implements DenormalizerInterface {
  
  /**
   * Normalizes data into a set of arrays/scalars.
   *
   * @param object $object
   *   Data to normalize.
   * @param string|null $format
   *   Format the normalization result will be encoded as.
   * @param array<string, mixed> $context
   *   Context options for the normalizer.
   *
   * @return array|string
   *   A string or an array with the replaced values.
   */
  public function normalize($object, $format = NULL, array $context = []) : array|string {
    return str_replace('super', 'NOT', $object->getValue());
  }
  
  /**
   * {@inheritdoc}
   */
  public function denormalize($data, $class, $format = NULL, array $context = []) : mixed {
    return str_replace('NOT', 'super', $data);
  }
  
  /**
   * {@inheritdoc}
   */
  public function getSupportedTypes(?string $format) : array {
    return [
      StringData::class => TRUE,
    ];
  }

}