Modify Datset's Data Adapter in Java Code

Hello All,

I have a Jasper report where I have :

1) A  Data Adapter

2) A Dataset Which is using Above Data Adapter.

3) A Table which is Using Above Dataset ( in Dataset Run )

Problem Statement : Now I want to add few more headers/parameters to data adapter in run time ( nonce, authentication etc. )

But not getting proper way to do it.
I am thinking to modify data adapter when it is created by jasper engine by defined property in dataset.
Can somebody tell the best way to do it or some other way to solve the problem.

Thanks in Advance

Bhansali