BusinessPtr JsonMessageHandler::GetBusinessObj(SessionPtr session)
{
    BusinessPtr biz;

    if(session->HasData())
    {
        CommonDataPtr sessiondata = session->GetData();
        biz = sessiondata->GetObj(Business::BASE_CODE);
        if(!biz)
        {
            biz = CreateBusinessObj();
            sessiondata->PutObj(Business::BASE_CODE, biz);
        }
    }

    return biz;
}