Jim Lloyd created TINKERPOP3-699:
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Summary: GraphSON writeGraph not producing valid json object
Key: TINKERPOP3-699
URL: https://issues.apache.org/jira/browse/TINKERPOP3-699
Project: TinkerPop 3
Issue Type: Bug
Components: io
Affects Versions: 3.0.0.GA
Reporter: Jim Lloyd
The following code in the M9-rc3 console produces an incorrect t.json file:
gremlin> graph = TinkerFactory.createModern()
==>tinkergraph[vertices:6 edges:6]
gremlin> g = graph.traversal()
==>graphtraversalsource[tinkergraph[vertices:6 edges:6], standard]
gremlin> f = new FileOutputStream("t.json")
==>java.io.FileOutputStream@7927bd9f
gremlin> mapper = graph.io(IoCore.graphson()).mapper().embedTypes(true).create()
==>org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONMapper@63f34b70
gremlin>
graph.io(IoCore.graphson()).writer().mapper(mapper).create().writeGraph(f,
graph)
==>null
gremlin> f.close()
==>null
The file is a stream of independent vertices rather than a single json object
following the GraphSON schema. I.e. the output looks like the this:
{"id":1,"label":"person", ... }
{"id":2,"label":"person", ... }
{"id":3,"label":"software", ... }
Where ... represents omitted fields.
A separate issue but related issue is that the documentation examples use
"CoreIo" but the actual name of that class is "IoCore", as shown in the console
session above.
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