How to add parameter to generated SipServletRequest

[alp carsikarsi]

Hi ,

May i learn how to add parameter to generated SipServletRequest's via header.
I want to add rport parameter to via header.

Here is my sample invite message.

invite = XxxSipServlet.factory.createRequest(applicationSession,
                                                            "INVITE",
                                                            spcFromURI,
                                                            toUri);
 
            if (XxxSipServlet.contentSignatureAsString) {
                invite.setContent(sdp, req.getContentType());
            } else {
                invite.setContent(sdp.getBytes(), req.getContentType());
            }
 
 

Thanks a lot.
[ November 21, 2008: Message edited by: alp carsikarsi ]

[Ben Souther]

Since SipServlet is not part of the servlet spec, I think it would be better not to discuss it in this forum.

I'm going to move this to our Other Java API forum for you.

[alp carsikarsi]

Ok Ben Thanks. I thought Sip Servlet is a Servlet and related issues could discuss in Servlet forum.

[alp carsikarsi]

I tried to add via parameter to my generated Invite message but i got the "java.lang.IllegalArgumentException: You can not modify a system header! " exception..
What can i do about this problem ?

...
...
.
 
            /**
             *  Create INVITE request which will send to Media Server...
             */
            mrfInvite = XxxSipServlet.factory.createRequest(applicationSession,
                                                            "INVITE",
                                                            fcsFromURI,
                                                            toUri);
 
            Parameterable via;
            try {
                via = XxxSipServlet.factory.createParameterable("Via");
                via.setParameter("rport", "");
               
                mrfInvite.setParameterableHeader("Via", via);          //exception !!!!
               
            } catch (ServletParseException e) {
                e.printStackTrace();
            }
...
...
.. 

[alp carsikarsi]

VIA header is a system header and according to JSR 289, application can
not modify system headers except CONTACT header when the request method
is REGISTER and in some more cases.

But i need to add rport parameter to via header.
What can i do ?
May be adding rport parameter to via is configurable thing. May it be ?

Regards...