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Search-Based Refactoring Detection Using Software Metrics Variation

  • Rim Mahouachi
  • Marouane Kessentini
  • Mel Ó Cinnéide
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8084)

Abstract

Software is frequently refactored to improve its design, either as part of an agile development process or as part of a major design overhaul. In either case, it is very useful to determine what refactorings have recently taken place in order to comprehend better the software and its development trajectory. To this end, we have developed an approach to automate the detection of source code refactorings using structural information extracted from the source code. Our approach takes as input a list of possible refactorings, a set of structural metrics and the initial and revised versions of the source code. It generates as output a sequence of detected changes expressed as refactorings. This refactoring sequence is determined by a search-based process that minimizes the metrics variation between the revised version of the software and the version yielded by the application of the refactoring sequence to the initial version of the software. We use both global and local heuristic search algorithms to explore the space of possible solutions. In applying our approach to several versions of four open source projects we find the average Precision and Recall to be over 90%, thus confirming the effectiveness of our detection approach.

Keywords

Search-based software engineering refactoring software metrics 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Rim Mahouachi
    • 1
  • Marouane Kessentini
    • 1
  • Mel Ó Cinnéide
    • 2
  1. 1.CSMissouri University of Science and TechnologyMissouriUSA
  2. 2.School of CS and InformaticsUniversity College DublinIreland

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