protected function getCurrentNodeRootline()
{
if ($this->currentNodeRootline === null) {
$nodeRootline = $this->currentNode->getContext()->getNodesOnPath($this->currentNode->getContext()->getCurrentSiteNode()->getPath(), $this->currentNode->getPath());
$this->currentNodeRootline = array();
foreach ($nodeRootline as $rootlineElement) {
$this->currentNodeRootline[$this->getNodeLevelInSite($rootlineElement)] = $rootlineElement;
}
}
return $this->currentNodeRootline;
}