datastaxdatastax-enterprise-graphtinkerpop-blueprintgraphson

Convert GraphResultSet JSON using Graphson

I'm trying to convert the GraphResultSet object to JSON format similar to datastax studio returns. I'm trying to use Graphson. Is there any sample codes convert the result object to JSON?

i tried the following from the tikerpop blueprints but its not working 

List<GraphNode> gf=((GraphResultSet) resultSet).all();
Vertex v = (Vertex) gf.get(0).asVertex();
                JSONObject json = null;
                try {
                    json = GraphSONUtility.jsonFromElement((Element) v,getElementPropertyKeys((Element) v, false), GraphSONMode.COMPACT);
                } catch (JSONException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }

I'm getting a GraphResultSet object from dse, It has vertex and edges. I wanted to output in JSON format.

Solution

  • You can't directly cast between com.datastax.driver.dse.graph.DefaultVertex & com.tinkerpop.blueprints.Element.

    There is GraphSONUtils class (src) in DSE Java driver that should be able to handle these conversions. But because it's in the "internal" package, I expect that changes may happen any time.