How can I restrict the BIRT report to be viewed only for the user who has logged in to my application.

[omprakash]

have created and deployed a BIRT report in my Struts framework application.
The url generated of the report when checked allows report to be fetched even if the user has not logged in to the application.

How can I restrict the BIRT report to be viewed only for the user who has logged in to my application.