Implementation of Code Cleanup and Code Standard Refactoring with PMD and UCD Tool

摘要

Software refactoring is the procedure that requires alteration in the source code to keep away from unused variable or duplicated variable, unused method and deprecated method. In this paper, work is done for implementation of CCACSR with PMD and UCD tool, which is useful for software refactoring. This paper focuses on CCACSR that includes mainly three modules, first to detect and then remove unused or duplicate variable from source code, second to detect and then remove or comment unused method from source code and third module is to find out the method which will be replaced by its equivalent new method of source code, so that method can be changed but its external behavior should not be changed. Other than this a comparison of developed system result with PMD and UCD tools is also performed. For this a program of 15—430 lines of code is developed. This code is checked with available platform and found results very effective. And same code is checked with PMD and UCD tools. Finally, the comparison of the results is performed with these tools. The detection of cloned variable or unused variable can be done by the concept of method and classes of AST parser and JAVA parser of eclipse from the existing source code, after removing the cloned or unused variable from source code and save the associated information in file for further used purpose. Similarly to detect the unused method from existing source code prepared by the concept of method and classes of AST parser and JAVA parser of eclipse and store related file after comment or removing particular method from source code. For Refactoring swing API is used, which is to find out the old method of older version and will be replaced by new method of newer version of Java. We compare our IDE CCACSR with PMD&UC Detector, which detects only unnecessary code but in our IDE and we determine as well as remove it from Java source file.