class MetadataFactory

TypedDataManager.php in drupal/core/lib/Drupal/Core/TypedData/TypedDataManager.php

Contains \Drupal\Core\TypedData\TypedDataManager.

class MetadataFactory implements MetadataFactoryInterface {

  /**
   * Implements MetadataFactoryInterface::getMetadataFor().
   *
   * @param \Drupal\Core\TypedData\TypedDataInterface $typed_data
   *   Some typed data object containing the value to validate.
   * @param $name
   *   (optional) The name of the property to get metadata for. Leave empty, if
   *   the data is the root of the typed data tree.
   */
  public function getMetadataFor($typed_data, $name = '') {
    if (!$typed_data instanceof TypedDataInterface) {
      throw new \InvalidArgumentException('The passed value must be a typed data object.');
    }
    $is_container = $typed_data instanceof ComplexDataInterface || $typed_data instanceof ListInterface;
    $class = '\\Drupal\\Core\\TypedData\\Validation\\' . ($is_container ? 'PropertyContainerMetadata' : 'Metadata');
    return new $class($typed_data, $name, $this);
  }

  /**
   * Implements MetadataFactoryInterface::hasMetadataFor().
   */
  public function hasMetadataFor($value) {
    return $value instanceof TypedDataInterface;
  }

}