protected function getCollectionContent( $collection, $depth = false, $properties = false )
    {
        $fullPath = $collection;
        $collection = $this->splitFirstPathElement( $collection, $currentSite );

        if ( !$currentSite )
        {
            // Display the root which contains a list of sites
            $entries = $this->fetchSiteListContent( $fullPath, $depth, $properties );
            return $entries;
        }

        return $this->getVirtualFolderCollection( $currentSite, $collection, $fullPath, $depth, $properties );
    }