code: public ResultURIConverter getConverter(String flags) {
  		// TODO: caching should be a responsibility of ContextResultURIConverterFactory.
  		// but it's a API-breaking change as converters is exposed through getter.
  		ResultURIConverter converter = converters.get(flags);
  		if(converter == null) {
  			converter = uriConverterFactory.getContextConverter(flags);
  			converters.put(flags,converter);
  		}
  		return converter;
  	}
docs: returns {@link ResultURIConverter} for resource context <code>flags</code>.
  @param flags resource context indicator such as "{@code cs_}", "{@code im_}".
  @return ResultURIConverter for translating URL