private function getPropertyFilters($search = '')
    {
        $propertyFilters = [];

        if(is_string($search) && strlen(trim($search)) > 0){
            $propertyFilters[self::LABEL_URI] = $search;
        }
        if(is_array($search)){
            foreach($search as $uri => $value){
                if( is_string($uri) &&
                    (is_string($value) && strlen(trim($value)) > 0) ||
                    (is_array($value) && count($value) > 0) ) {
                    $propertyFilters[$uri] = $value;
                }
            }
        }
        return $propertyFilters;
    }