Java：代码所有权可视化

Question

What are tools to see code ownership in the project?

Every Java class have @author in the JavaDoc class comment. So it is possible to count number of lines of every class and summarize in how many lines every author has.

Example could be TreeMap showing size of projects, or packages (if clicked). See running Sonar instance at https://analysis.apache.org/ I would like to see similar TreeMap for authors.

We actually have Collective code ownership , but I have idea of company-level hard-coder contest to encourage developers commit often and configure Jenkins jobs etc.

UPDATE: rephrasing question: Is there way to see lines of code committed per contributor in selected period? UPDATE 2: Visual solution is needed, looking only on those numbers may be dull.

Answer 1

You kind of answered your question yourself. If you want to see committed lines, you can use your version control system for that. For instance, with svn, there is an svn log command and svnstat , statsvn tools based on it. Also see Maven's stat-scm plugin .

Answer 2

So I actually have problem to encourage developers to add this simple javaDoc @author to indicate that they are ready to answer questions.

Here is the relevant documentation how to access Javadoc tags:

http://docs.oracle.com/javase/7/docs/technotes/guides/javadoc/index.html

http://docs.oracle.com/javase/7/docs/jdk/api/javadoc/doclet/

http://docs.oracle.com/javase/7/docs/jdk/api/javadoc/doclet/com/sun/javadoc/package-summary.html#package_description