Hi, Currently the nodes expression doesn't have this capability. Feel free to make a feature request on jira. This sounds like a fairly easy feature to add.
Joel Bernstein http://joelsolr.blogspot.com/ On Wed, Jun 27, 2018 at 5:21 PM, Heidi McClure < heidi.mccl...@polarisalpha.com> wrote: > Hello, > > I am trying to export graph data from a Solr index (version 7.2) in a > format that can be imported to Gephi for visualization. I'm getting > close! Is there a way to add edge labels to the exports from this type of > command (see curl command that follows and sample outputs)? > > Thanks in advance, > -heidi > > Based on the examples found here: https://lucene.apache.org/ > solr/guide/7_2/graph-traversal.html , this is working in my GDELT-based > data set query request: > > curl --data-urlencode 'expr=nodes(gdelt_graph, > nodes(gdelt_graph, > walk="POLICE->Actor1Name_s", > trackTraversal="true", > gather="Actor2Name_s"), > walk="node->Actor1Name_s", > scatter="leaves,branches", > trackTraversal="true", > gather="Actor2Name_s")' > http://mymachine:8983/solr/gdelt_graph/graph > > Output is like this (just a subset): > <?xml version="1.0" encoding="UTF-8"?> > <graphml xmlns="http://graphml.graphdrawing.org/xmlns"; > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; > xsi:schemaLocation="http://graphml.graphdrawing.org/xmlns > http://graphml.graphdrawing.org/xmlns/1.0/graphml.xsd";> > <graph id="G" edgedefault="directed"> > <node id="POLICE"> > <data key="field">node</data> > <data key="level">0</data> > </node> > <edge id="1" source="BANGLADESH" target="POLICE"/> > <node id="HOSPITAL"> > <data key="field">Actor2Name_s</data> > <data key="level">1</data> > </node> > <edge id="2" source="POLICE" target="HOSPITAL"/> > <node id="UNITED STATES"> > <data key="field">Actor2Name_s</data> > <data key="level">1</data> > </node> > <edge id="3" source="UNITED STATES" target="UNITED STATES"/> > <edge id="4" source="AFRICA" target="UNITED STATES"/> > <edge id="5" source="POLICE" target="UNITED STATES"/> > > And I'd like to have a key for label and the data tag on the edges so that > I can get the Labels into Gephi. Does anyone know if this can be done? > Below is example of what I mean. Notice the key for label at the top of > the file and the "This is an edge description" entries on two of the edges > (ids 1 and 2). > > <?xml version="1.0" encoding="UTF-8"?> > <graphml xmlns="http://graphml.graphdrawing.org/xmlns"; > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; > xsi:schemaLocation="http://graphml.graphdrawing.org/xmlns > http://graphml.graphdrawing.org/xmlns/1.0/graphml.xsd";> > <key id="label" for="edge" attr.name="label" attr.type="string"/> > <graph id="G" edgedefault="directed"> > <node id="POLICE"> > <data key="field">node</data> > <data key="level">0</data> > </node> > <edge id="1" source="BANGLADESH" target="POLICE" label="foo"> > <data key="label">This is an edge description.</data> > </edge> > <node id="HOSPITAL"> > <data key="field">Actor2Name_s</data> > <data key="level">1</data> > </node> > <edge id="2" source="POLICE" target="HOSPITAL"> > <data key="label">This is an edge description.</data> > </edge> > <node id="UNITED STATES"> > <data key="field">Actor2Name_s</data> > <data key="level">1</data> > </node> > <edge id="3" source="UNITED STATES" target="UNITED STATES"/> > <edge id="4" source="AFRICA" target="UNITED STATES"/> > <edge id="5" source="POLICE" target="UNITED STATES"/> > >
