public function getServerPath()
    {
        if (is_null($this->_serverPath)) {
            $this->_resourceTypeConfig = $this->getResourceTypeConfig();
            $this->_serverPath = CKFinder_Connector_Utils_FileSystem::combinePaths($this->_resourceTypeConfig->getDirectory(), ltrim($this->_clientPath, "/"));
        }

        return $this->_serverPath;
    }