Method dispatch

/**
 * Dispatch a controller task. Redirecting the user if appropriate.
 *
 * @return  void
 *
 * @since   4.0.0
 */
public function dispatch()
{
    // Check component access permission
    $this->checkAccess();
    $command = $this->input->getCmd('task', 'display');
    // Check for a controller.task command.
    if (strpos($command, '.') !== false) {
        // Explode the controller.task command.
        list($controller, $task) = explode('.', $command);
        $this->input->set('controller', $controller);
        $this->input->set('task', $task);
    } else {
        // Do we have a controller?
        $controller = $this->input->get('controller', 'display');
        $task = $command;
    }
    // Build controller config data
    $config['option'] = $this->option;
    // Set name of controller if it is passed in the request
    if ($this->input->exists('controller')) {
        $config['name'] = strtolower($this->input->get('controller'));
    }
    // Execute the task for this component
    $controller = $this->getController($controller, ucfirst($this->app->getName()), $config);
    $controller->execute($task);
    $controller->redirect();
}