How to force "local" language

Hi,

I have defined a BI Publisher report, based on a rtf template.

This report is called by a web service.

Is there a way to force the "local" langage - without changing the code used to call the webservice ?

The idea is to control the format used for dates and numbers (especially format for decimal and thousands separators).

I was thinking to force the language use, whatever the preferences of the user. In that case, even when calling the report directly thru BIP (not thru web service), the format will always be the same for all users).

Hoping my question is clear.