Write to file? about rdf2gremlin HOT 3 OPEN

Give a second review to this issue, transforming RDF graphs into GraphML/GraphSON/Gyro is beyond the scope of this library. That will have to be handled by using a network library such as NetworkX, which is already implemented in the rdflib library (https://github.com/RDFLib/rdflib/blob/master/rdflib/extras/external_graph_libs.py) but differs from the graph transformation adopted here. Unless there is another use case requiring this transformation to be serialised into a file, I will postpose this issue.

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Hi Douglas,
thank you for your feedback.

Currently this tool was conceived to load the RDF triples into an in-memory rdflib graph, which is then fed bit by bit into the property graph using Gremlin commands.

In your case, for staging purpose, I would write the graph data in GraphML, GraphSON, or Gryo formats. These are then native to property graphs and can be loaded as a bulk.

What rdf2gremlin could implement is a conversion from RDF representation into the corresponding GraphML, GraphSON, or Gryo representation. This should be quite straight forward. I will bear this in mind for the future, or in case you are willing to contribute, I can guide you how to do it.

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@costezki

Thanks much for the detailed reply. I'll take a look at those three formats. With 0 knowledge of them all I'd likely try and focus on GraphSON on the assumption it's JSON esq. I'm already doing quite a both with JSON-LD so I might be able to work from there. I'm better in Go than Python so I might try there first. I'm find the Go RDF package I use to have a feel much like that of Python's RDFLIB, so I'll try and do it in a manner that might give me insight on giving it a go in this code base.

Given my note about 0 knowledge, is there a recommendation you would give between GraphML, GraphSON and Gryo?

Thanks much
Doug

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