@ SuppressWarnings ( "unchecked" ) DynamicConverter < E > createConverter ( SimpleKeywordNode kn ) { String keyword = ( String ) kn . getValue ( ) ; String converterClassStr = ( String ) converterMap . get ( keyword ) ; if ( converterClassStr != null ) { try { return ( DynamicConverter < E > ) OptionHelper . instantiateByClassName ( converterClassStr , DynamicConverter . class , context ) ; } catch ( Exception e ) { addError ( "Failed to instantiate converter class [" + converterClassStr + "] for keyword [" + keyword + "]" , e ) ; return null ; } } else { addError ( "There is no conversion class registered for conversion word [" + keyword + "]" ) ; return null ; } }
Attempt to create a converter using the information found in converterMap .