<?php

/**
 * @file
 * Contains \Drupal\migrate_pets\Plugin\migrate\process\CatToDog
 */

namespace Drupal\migrate_pets\Plugin\migrate\source;

use Drupal\migrate\MigrateExecutableInterface;
use Drupal\migrate\ProcessPluginBase;
use Drupal\migrate\Row;

/**
* Turn cats into dogs.
*
* @MigrateProcessPlugin(
*   id = "cat_to_dog",
* )
*/
class CatToDog extends ProcessPluginBase {

  /**
   * {@inheritdoc}
   */
  public function transform($value, MigrateExecutableInterface $migrate_executable, Row $row, $destination_property) {
    return ($value == 'cat') ? 'dog' : $value;
  }

}