Method __construct

/**
 * Constructor.
 *
 * @param   array                $config   An optional associative array of configuration settings.
 *                                         Recognized key values include 'name', 'default_task', 'model_path', and
 *                                         'view_path' (this list is not meant to be comprehensive).
 * @param   MVCFactoryInterface  $factory  The factory.
 * @param   CMSApplication       $app      The Application for the dispatcher
 * @param   Input                $input    Input
 *
 * @since   4.0.0
 * @throws  \Exception
 */
public function __construct($config = array(), MVCFactoryInterface $factory = null, ?CMSApplication $app = null, ?Input $input = null)
{
    $this->modelState = new CMSObject();
    parent::__construct($config, $factory, $app, $input);
    // Guess the option as com_NameOfController
    if (empty($this->option)) {
        $this->option = ComponentHelper::getComponentName($this, $this->getName());
    }
    // Guess the \Text message prefix. Defaults to the option.
    if (empty($this->text_prefix)) {
        $this->text_prefix = strtoupper($this->option);
    }
    // Guess the context as the suffix, eg: OptionControllerContent.
    if (empty($this->context)) {
        $r = null;
        if (!preg_match('/(.*)Controller(.*)/i', \get_class($this), $r)) {
            throw new \Exception(Text::sprintf('JLIB_APPLICATION_ERROR_GET_NAME', __METHOD__), 500);
        }
        $this->context = str_replace('\\', '', strtolower($r[2]));
    }
}