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Exceptions and Aspects: The Devil is in the Details
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BibTeX
@MISC{Castor_exceptionsand,
author = {Fernando Castor and Filho Nelio and Cacho Raquel and Maranhão Eduardo Figueiredo and Alessandro Garcia and Cecília Mary and F. Rubira},
title = {Exceptions and Aspects: The Devil is in the Details},
year = {}
}
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Abstract
One of the fundamental motivations for employing exception handling in the development of robust applications is to lexically separate error handling code so that it can be independently reused and modified. It is usually assumed that the implementation of exception handling can be better modularized by the use of aspect-oriented programming (AOP). However, the trade-offs involved in using AOP with this goal are not yet well-understood. This paper presents an in-depth investigation of the adequacy of the AspectJ language for modularizing exception handling code. The study consisted in refactoring existing applications so that the code responsible for implementing heterogeneous error handling strategies was moved to separate aspects. We have performed quantitative assessments of four systems- three object-oriented and one aspect-oriented- based on four fundamental quality attributes, namely separation of concerns, coupling, cohesion, and conciseness. Our investigation also included a multi-perspective analysis of the refactored systems, including (i) the reusability of the aspectized error handling code, (ii) the beneficial and harmful aspectization scenarios, and (iii) the scalability of AOP to aspectize exception handling in the presence of other crosscutting concerns. 1.
Keyphrases
exception handling aspectized error robust application refactored system fundamental quality attribute in-depth investigation aspect-oriented programming heterogeneous error fundamental motivation separate error multi-perspective analysis aspectj language quantitative assessment harmful aspectization scenario separate aspect
