/**
* {@inheritDoc}
*/
public function switchInstance(InstanceInterface $instance)
{
if (!array_key_exists('HTTP_HOST', (array) $_SERVER)) {
throw new Exception\RuntimeException(sprintf('Host not set.'));
}
$url = $this->router->assemble($this->routeMatch->getParams(), ['name' => $this->routeMatch->getMatchedRouteName()]);
$hostNames = explode('.', $_SERVER['HTTP_HOST']);
$tld = $hostNames[count($hostNames) - 2] . "." . $hostNames[count($hostNames) - 1];
$url = 'http://' . $instance->getSubdomain() . '.' . $tld . $url;
$this->redirect($url);
}
