An Automatic Refactoring Method for Object-Oriented Software

Abstract

The invention provides an object software oriented automatic refactoring method and relates to the technical field of software quality improvement. According to the method, a to-be-refactored software system is established as a class level multilayer dependency directed network model; refactoring preprocessing is carried out; class level network connecting components are combined; each class level network connecting component is converted into an entity set of the same class; semantic and structure coupling relationships among the entity set elements are analyzed; a method level coupling undirected network model is established; weight coefficients of different classes of coupling relationships among the nodes of the undirected network are determined; community division is carried out on each method level network; refactoring suggestions are generated; and the to-be-refactored software system is refactored. According to the method, starting from the angles of global cohesion and coupling of the whole software system, through combination of a semantic similarity, a structure similarity and a hierarchical clustering algorithm, a move function, a move attribute and extraction class refactoring operation suggestions are generated at the same time, and the intelligibility, reusability and maintainability of the code are effectively improved.

Description

[0001] Technical field: [0002] The invention relates to the technical field of software quality improvement, in particular to an automatic reconfiguration method for object-oriented software. [0003] Background technique: [0004] In the process of software development and maintenance, constantly changing requirements cause the original design structure of the system to be broken, making the structure more confusing, the code difficult to understand, and software reuse and maintenance becoming more and more difficult. Software refactoring is an important means to improve software quality. It improves the comprehensibility, maintainability and scalability of software by adjusting the internal structure of software without changing the external behavior of the software. However, software refactoring is a time-consuming and complex code adjustment activity that requires software developers to perceive the code as a whole and make complex decisions about "where, when, and how" t...

AI Technical Summary

Problems solved by technology

[0008] (3) Too large class (God Class): The class contains too many functions and attributes, and realizes too many functions, resulting in poor code comprehensibility and readability

[0010] The above algorithm can only implement a single refactoring operation to improve the cohesion of the system, and the refactoring operations of the refining class are all semi-automatic algorithms, requiring developers to manually input the categories that need to be decomposed for further analysis. certain limitations

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