We know this is too complicated and are working on something that makes storing properties for every edge much easier: Edge flags refactoring by karussell · Pull Request #1447 · graphhopper/graphhopper · GitHub
And not only this, there will be certain defaults like highway (road_class), ferry&bridge (road_environment) and surface that will be added as default properties.
In branches like here we are going even further and one can define new vehicles based on a configuration file. See this recent discussion: Disabling CH not allowed on the server-side? - #5 by karussell
I’ve not seen a method for being able to read the new data, and neither is it clear how to access this from entries in a MatchResult.
Currently this is possible via edge.getFlags (e.g. encoder.getDouble(edge.getFlags)) in future versions this will be edge.get(roadClassEnc). Also we’ll automatically create path details for such properties and they’ll be available in the response.