Detecting Architectural Violations Using Responsibility and Dependency Constraints of Components

Abstract

SUMMARYUtilizing software architecture patterns is important for reducing maintenance costs. However, maintaining code according to the constraints defined by the architecture patterns is time-consuming work. As described herein, we propose a technique to detect code fragments that are incompliant to the architecture as fine-grained architectural violations. For this technique, the dependence graph among code fragments extracted from the source code and the inference rules according to the architecture are the inputs. A set of candidate components to which a code fragment can be affiliated is attached to each node of the graph and is updated stepby-step. The inference rules express the components' responsibilities and dependency constraints. They remove candidate components of each node that do not satisfy the constraints from the current estimated state of the surrounding code fragment. If the inferred role of a code fragment does not include the component that the code fragment currently belongs to, then it is detected as a violation. We have implemented our technique for the ModelView-Controller for Web Application architecture pattern. By applying the technique to web applications implemented using Play Framework, we obtained accurate detection results. We also investigated how much does each inference rule contribute to the detection of violations.

The Smell of Blood: Evaluating Anemia and Bloodshot Symptoms in Web Applications

“…Sakar et al [19] generated Dependency Graph of modules and determined layer of each vertex according to their number of indegree and outdegree, while Hayashi et al [20] inferred the role of code component in MVC-based applications using Dependency Graph.…”

“…There is no common and generic approach for class layering. Related works mainly consider two features, class dependencies [19,20] and class names [14,16,21]. This paper proposed a mixed layering approach that fits web applications.…”