private Map < String , String > getThisTransportMap ( Map < String , Map < String , String > > allTransports , String transportName ) { if ( ! allTransports . containsKey ( transportName ) ) { allTransports . put ( transportName , new HashMap < String , String > ( ) ) ; } return allTransports . get ( transportName ) ; }
If we don t yet have a map for this transport name create one .