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Posted to dev@lucene.apache.org by "Heidi McClure (JIRA)" <ji...@apache.org> on 2018/07/03 14:30:00 UTC
[jira] [Updated] (SOLR-12534) Add Edge Labels for Graph exports to
GraphML to allow imports to Gephi
[ https://issues.apache.org/jira/browse/SOLR-12534?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Heidi McClure updated SOLR-12534:
---------------------------------
Description:
Please add the ability to export edge labels to the GraphML export API.
In the comment section is the email I sent to solr-users where they suggested adding an issue to request this capability be added - they also said it would be an easy change to make. The change is minor and would possibly be to this class:
org.apache.solr.response.GraphMLResponseWriter or might be an extension to that class.
was:
Please add the ability to export edge labels to the GraphML export API.
In the environment section is the email I sent to solr-users where they suggested adding an issue to request this capability be added - they also said it would be an easy change to make. The change is minor and would possibly be to this class:
org.apache.solr.response.GraphMLResponseWriter or might be an extension to that class.
> Add Edge Labels for Graph exports to GraphML to allow imports to Gephi
> ----------------------------------------------------------------------
>
> Key: SOLR-12534
> URL: https://issues.apache.org/jira/browse/SOLR-12534
> Project: Solr
> Issue Type: New Feature
> Security Level: Public(Default Security Level. Issues are Public)
> Components: Response Writers
> Affects Versions: 7.2, 7.2.1, 7.3, 7.3.1, 7.4
> Environment: 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"/>
> Reporter: Heidi McClure
> Priority: Minor
> Labels: easyfix
> Fix For: 7.5
>
>
> Please add the ability to export edge labels to the GraphML export API.
> In the comment section is the email I sent to solr-users where they suggested adding an issue to request this capability be added - they also said it would be an easy change to make. The change is minor and would possibly be to this class:
> org.apache.solr.response.GraphMLResponseWriter or might be an extension to that class.
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