Support for GDF as a report output format
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Key: IVY-896
URL: https://issues.apache.org/jira/browse/IVY-896
Project: Ivy
Issue Type: New Feature
Components: Core
Affects Versions: 2.0.0-beta-1
Reporter: Nascif Abousalh-Neto
Priority: Minor
Fix For: unspecified
We have been dealing with some very large graphs here (thousands of nodes, tens
of thousands of edges) and the information density is so high that the graph
visualization tools supported by Ivy, GraphViz and yED, were not up to the task.
Then we found out about GUESS
(http://jung.sourceforge.net/applet/balloonlayout.html), which takes a novel
approach which combines visualization support (using JUNG, an excellent library
in itself) with a DSL for graph manipulation based on Jython. This way a user
can issue commands and run scripts that manipulate the graph contents with
immediate visual feedback. We have been using it and has proven to be a great
match for our use cases.
GUESS claims to suport graphml but it was not able to parse the graphml report
generated by Ivy. So I coded an XSL that creates GDF from the Ivy resolution
report XML. Besides working :-) this method keeps the relevant (but non-visual)
attributes from the original report in the GDF as well. These can be later used
in GUESS to group nodes, create convex hulls, calculate metrics, and so on.
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