JGit: Count objects

How can I retrieve the total number of git objects in a repository? (I search something like the git count-objects in JGit.)

I made a Java program that calculates statistic values and has to read every object (blob, tree, commit, tag) of a git repository. Something like a progress bar should show the user how many objects already have been processed. So I need th开发者_StackOverflow中文版e total number of git objects.

I did not manipulate the Git objects at all, but I suppose you should explore the Repository object, which has methods like getAllRefs() or getObjectDatabase().

From the results, I imagine you could find what you want.