if (!super.spooler_process_before()) return false;
String xml_document = "";
Order order = spooler_task.order();
Web_service_operation operation = order.web_service_operation();
if (operation == null) throw new Exception( "no web service operation available" );
Web_service_request request = operation.request();
if (request == null) throw new Exception( "no web service request available" );
spooler_log.debug3( "content of web service request:\n" + request.string_content() );