ComplexDataNormalizer.php

<?php

/**
 * @file
 * Contains \Drupal\serialization\Normalizer\ComplexDataNormalizer.
 */
namespace Drupal\serialization\Normalizer;

use Symfony\Component\Serializer\Exception\RuntimeException;

/**
 * Converts the Drupal entity object structures to a normalized array.
 *
 * This is the default Normalizer for entities. All formats that have Encoders
 * registered with the Serializer in the DIC will be normalized with this
 * class unless another Normalizer is registered which supersedes it. If a
 * module wants to use format-specific or class-specific normalization, then
 * that module can register a new Normalizer and give it a higher priority than
 * this one.
 */
class ComplexDataNormalizer extends NormalizerBase {

  /**
   * The interface or class that this Normalizer supports.
   *
   * @var string
   */
  protected $supportedInterfaceOrClass = 'Drupal\\Core\\TypedData\\ComplexDataInterface';

  /**
   * Implements \Symfony\Component\Serializer\Normalizer\NormalizerInterface::normalize().
   */
  public function normalize($object, $format = NULL, array $context = array()) {
    $attributes = array();
    foreach ($object as $name => $field) {
      $attributes[$name] = $this->serializer
        ->normalize($field, $format);
    }
    return $attributes;
  }

}