Translation class similar to Gettext usage approach

Translator.php

<?php

use Symfony\Component\Translation\Translator as SymfonyTranslator;
use Symfony\Component\Translation\MessageSelector;
use Symfony\Component\Translation\Loader\PhpFileLoader;

class Translator
{

  /**
   * The loader implementation.
   *
   * @var \Symfony\Component\Translation\Loader\LoaderInterface
   */
  protected $loader;

  /**
   * The default locale being used by the translator.
   *
   * @var string
   */
  protected $locale;

  /**
   * The default locale path being used by the translator.
   *
   * @var string
   */
  protected $localePath;

  /**
   * The translator object.
   *
   * @var \Symfony\Component\Translation\TranslatorInterface
   */
  protected $trans;
  
  /**
   * Create a new instance.
   *
   * @param  string $locale
   * @param  string $path
   * @return void
   */
  public function __construct($locale = '', $path = '')
  {
    $this->createLoader();

    return $this->setLocale($locale, $path);
  }

  /**
   * Set current locale.
   *
   * @param  string $locale
   * @param  string $path
   * @param  string $domain
   * @return self
   */
  public function setLocale($locale, $path = '', $domain = 'messages')
  {
    $this->locale = $locale;

    if ( ! empty($path)) {
      $this->localePath = $path;
    }

    $this->domain = $domain;

    // path to the .php file that we should monitor
    $file = $this->localePath.'/'.$locale.'/'.$this->domain.'.php';

    $fallbackLocale = substr($this->locale, 0, 2);

    $this->trans = $this->createTranslator($this->locale);
    $this->trans->setFallbackLocales([$fallbackLocale]);
    $this->trans->addLoader('php', $this->loader);
    $this->trans->addResource('php', $file, $this->locale, $this->domain);

    return $this;
  }

  /**
   * Translate a text.
   *
   * @param  string $text
   * @param  mixed  $parameters
   * @param  string $domain
   * @return string
   */
  public function trans($text, $parameters = [], $domain = 'messages')
  {
    if ( ! is_array($parameters)) {
      $domain = $parameters;
      $parameters = [];
    }

    if ($domain !== $this->domain) {
      $this->setLocale($this->locale, $this->localePath, $domain);
    }

    return $this->trans->trans($text, $parameters, $this->domain);
  }

  /**
   * Create the translator object.
   *
   * @param  string $locale
   * @return \Symfony\Component\Translation\TranslatorInterface
   */
  private function createTranslator($locale)
  {
    return new SymfonyTranslator($locale, new MessageSelector());
  }

  /**
   * Get the loader object.
   *
   * @return \Symfony\Component\Translation\Loader\LoaderInterface
   */
  private function createLoader()
  {
    return $this->loader = new PhpFileLoader;
  }

}