public function enableStaticWeb($index = null, $enableListings = null, $error = null, $listingsCss = null)
    {
        $metadata = array(
            'X-Container-Meta-Web-Index'        => '',
            'X-Container-Meta-Web-Listings'     => '',
            'X-Container-Meta-Web-Error'        => '',
            'X-Container-Meta-Web-Listings-CSS' => '',
        );

        if (null !== $index) {
            $metadata['X-Container-Meta-Web-Index'] = strval($index);
        }

        if (null !== $enableListings && is_bool($enableListings)) {
            $metadata['X-Container-Meta-Web-Listings'] = $enableListings ? 'True' : 'False';
        }

        if (null !== $error) {
            $metadata['X-Container-Meta-Web-Error'] = strval($error);
        }

        if (null !== $listingsCss) {
            $metadata['X-Container-Meta-Listings-CSS'] = strval($listingsCss);
        }

        $this->updateMetadata($metadata);
    }