simple_node_importer-8.x-1.0/src/ParamConverter/SimpleNodeParamConverter.php

<?php

namespace Drupal\simple_node_importer\ParamConverter;

use Drupal\Core\ParamConverter\ParamConverterInterface;
use Symfony\Component\Routing\Route;

/**
 * {@inheritdoc}
 */
class SimpleNodeParamConverter implements ParamConverterInterface {

  /**
   * {@inheritdoc}
   */
  public function convert($value, $definition, $name, array $defaults) {
    return \Drupal::entityManager()->getStorage('node')->load($value);
  }

  /**
   * {@inheritdoc}
   */
  public function applies($definition, $name, Route $route) {
    return (!empty($definition['type']) && $definition['type'] == 'node');
  }

}