[GraphHopper] Additional Datasource for Graph Construction

[Quinton Anderson]

Hi,

I have a separate data source which needs to be merged into the graph as part of the OSM import process. The data essentially consists of a set of ways, each consisting of a way ID and a list of nodes. The Way id corresponds to the OSM way ID exactly. The nodes consist of a lat, long and sequence number within the way (which includes the version). My current thought process is: 
to process this separate datasource first
Override OSMReaderHelper.parseWay, 
and add the functionality to extract the way ID
Add the external nodes to the list where applicable based on a match of the way IDs between the datasets, and in the correct order.

This should allow my external data to mix in quite nicely. Can anyone suggest a better approach or a way to generalize it better?

Regards,
Quinton Anderson
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