/**
* @param Net_HTTP_Request $request
* @param array $parameters
* @param boolean $to_headers
*
* @return Net_HTTP_Request
*/
protected function build_request(Net_HTTP_Request $request, array $parameters = array(), $to_headers = false)
{
$builder = $this->is_version(1) ? Service_OAuth::RequestBuilder($request) : new Service_OAuth_RequestBuilder2($request);
$builder->consumer($this->consumer)->token($this->token)->add_parameters($parameters)->sign($this->options['sign_method'])->to_parameters();
if ($to_headers) {
$builder->to_headers();
}
return $builder->request;
}