protected String getQPConfig(Query query,
                                 String paramName) {
       return RewriterUtils.getQPConfig(query, getRewriterName(), paramName);
    }
Get config parameter value set in query profile

@param query Query object from the searcher
@param paramName parameter to be retrieved
@return parameter value or null if not found
container-search/src/main/java/com/yahoo/search/query/rewrite/QueryRewriteSearcher.java