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ClassNameAnalyser

Installation

In order to install this project, execute (Do-it, Ctrl D) the following script in the Playground of your Moose 11 Image

Metacello new
  baseline: 'ClassNameAnalyser';
  repository: 'github://NourDjihan/ClassNameAnalyser/src';
  load.

In previous Moose images, use

Metacello new
  baseline: 'ClassNameAnalyser';
  repository: 'github://NourDjihan/ClassNameAnalyser:v1.1.0/src';
  load.

ClassNameAnalyser Description:

The ClassNameAnalyser is a project which provides a visualisation of the distribution of concepts in both Java and Pharo. The visualization is called ClassName Distribution. Full demo in: https://drive.google.com/drive/folders/1C0r1-R_6EYxqJS528pLuvKbYQF_Q5MjV?usp=sharing

How to use the ClassNameAnalyser

After loading the ClassNameAnalyser, click on Library from the top menu then select ClassNames Distribution. For Pharo projects, you can write the name of the project in the list of packages on the left side, then use the shortcut cmd A to select all packages starting with the project name. For Java projects, you may want to create an mse file first using: https://github.com/moosetechnology/VerveineJ. Then load your mse file from the mse icon on the top left of the tool.

Once you project is selected/loaded, click on the visualize button.

Understanding your Visualisation:

The visualization is based on:

  • Package boxes that contain suffixes/prefixes of class names. Where each suffix/prefix box holds the classes using it.
  • Colors: a color represents a hierarchy:
Class Type Description Color
Mono Class a class which belongs to no hierarchy white
Trait Class a class containing a set of methods that can be used to extend the functionality of a class white
Mono Suffix Hierarchy Hierarchies which use the same naming convention (all classes of a tree hierarchy have the same suffix) Gray
Multi Suffix Hierarchy Hierarchies that do not use the same naming convention a color is selected from the predefined color palette (24 main colors taken by the first biggest 24 hierarchies in descending order)
Other hierarchies (ignored) starting from the 25th biggest hierarchy in the system Black

A Visual Example:

The figure below depicts a ClassNames Distribution of the Moose project:

You have all the informations about the approach and how to manipulate the tool in the instructions ? buttons. You can also highlight classes of the same hierarchy to see their distribution in packages and select an item from the (anti-)patterns list (bottom left) to help detecting inconsistencies in class names.

The visualisation below shows a ClassNames Distribution the Lucene project 2004. For Java projects it is better to select both suffix/prefix since they do not follow the suffix naming convention, the concept is usually droped either at the beginning or the end of the class name.