BI4 retrieve current BO session from web session attributes

Hello all,

I have the following code - that allows retrieving the current BO session previously opened by a user via the logon page - running in a custom application hosted on a XI3.1 platform :

IEnterpriseSession iSess = ((CrystalIdentity)request.getSession().getAttribute(InfoViewConstants.INFOVIEW_SESSION)).getSession();

I would like to do the same in BI4... unfortunately I looks like:

• CrystalIdentity is not supported anymore (deprecated)
• InfoViewConstants.INFOVIEW_SESSION neither

Would someone have an idea as to how I could proceed? Keeping in mind that I don't want to ask the user enter any credentials but in the logon page.

I had the following idea in mind but don't know if realizable at all :

• retrieve logon token from flash variables and use the logonWithToken function
• retrieve logon token from cookies (InfoViewPLATFORMSVC_COOKIE_TOKEN? JSESSIONID?) and use the logonWithToken function

Has one of you already tried with success?

Thanks,

Manuel