protected function getObserver(array $observer, $area)
{
$type = $this->getObserverType($observer, $area);
$class = '';
if (isset($observer['class'])) {
$class = $observer['class'];
} elseif (isset($observer['model'])) {
$class = $observer['model'];
}
$method = isset($observer['method']) ? '::' . $observer['method'] : '';
$observer = $type . $class . $method;
return $observer;
}