[SOLR-8972] Add GraphHandler and GraphMLResponseWriter to support graph visualizations

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 6.1
• Assignee: Joel Bernstein
• Reporter: Joel Bernstein
• Created: 12/Apr/16 16:07
• Updated: 08/Oct/19 14:50
• Resolved: 13/Jun/16 20:39

Description

SOLR-8925 is shaping up nicely. It would be great if Solr could support outputting graphs in GraphML. This will allow users to visualize their graphs in a number of graph visualization tools (NodeXL, Gephi, Tulip etc...). This ticket will create a new Graph handler which will take a Streaming Expression graph traversal and output GraphML. A new GraphMLResponseWriter will handle the GraphML formatting. In future releases we can consider supporting other graph formats.