DDD AST

Extract identifiers from Java sources

Objective

Quickly establish a list of identifiers with their # of occurrences to match them with the ubiquitous language dictionary and calculate a "DDD score"

Principle

Uses java-parser to build Concrete Syntax Tree from Java files and extract identifiers and then collecting them, counting and sorting by count

How to use

Standalone

In the project directory:

npm install to install required dependencies

node parse.js to parse stdin

As a dependency

That's how this package is intended to be used 😃

Suppose you have a Java project "my-java-project"

Just create this package.json file at the root of the project:

{
  "name": "my-java-project",
  "version": "0.0.1",
  "devDependencies": {
    "@lolo101/ddd-ast": "1.0.4"
  }
}

Run npm install

and then it becomes possible to use the ddd command in a script in your projects:

$ cat HelloWorldExample.java | npx ddd | sort | uniq -c | sort -nr
      2 System
      2 String
      2 println
      2 out
      2 arguments
      2 args
      1 main
      1 List
      1 HelloWorldExample
      1 asList
      1 Arrays