HAM: cross-cutting concerns in Eclipse

Authors:
Silvia Breu;Thomas Zimmermann;Christian Lindig
Affiliations:
University of Cambridge, Cambridge, UK;Saarland University, Saarbrücken, Germany;Saarland University, Saarbrücken, Germany
Venue:
eclipse '06 Proceedings of the 2006 OOPSLA workshop on eclipse technology eXchange
Year:
2006

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Abstract

As programs evolve, newly added functionality sometimes no longer aligns with the original design, ending up scattered across the software system. Aspect mining tries to identify such cross-cutting concerns in a program to support maintenance, or as a first step towards an aspect-oriented program. Previous approaches to aspect mining applied static or dynamic program analysis techniques to a single version of a system. We exploit all versions from a system's CVS history to mine aspect candidates; we are about to extend our research prototype to an Eclipse plug-in called HAM: when a single CVS commit adds calls to the same (small) set of methods in many unrelated locations, these method calls are likely to be cross-cutting. HAM employs formal concept analysis to identify aspect candidates. Analysing one commit operation at a time makes the approach scale to industrial-sized programs. In an evaluation we mined cross-cutting concerns from Eclipse 3.2M3 and found that up to 90% of the top-10 aspect candidates are truly cross-cutting concerns.