private void addParameters(Source source,Query query) {
        for (Map.Entry<String,String> parameter : source.parameters().entrySet())
            query.properties().set("source." + source.getName() + "." + parameter.getKey(),parameter.getValue());
    }
Adds parameters specified in the source to the correct namespace in the query
container-search/src/main/java/com/yahoo/search/pagetemplates/PageTemplateSearcher.java