Examples with DialogDoesNotExistException javax.sip.DialogDoesNotExistException used on opensource projects

Example 1 with DialogDoesNotExistException

use of javax.sip.DialogDoesNotExistException in project XobotOS by xamarin.

the class SIPDialog method createPrack.

/*
     * (non-Javadoc) Retransmissions of the reliable provisional response cease when a matching
     * PRACK is received by the UA core. PRACK is like any other request within a dialog, and the
     * UAS core processes it according to the procedures of Sections 8.2 and 12.2.2 of RFC 3261. A
     * matching PRACK is defined as one within the same dialog as the response, and whose method,
     * CSeq-num, and response-num in the RAck header field match, respectively, the method from
     * the CSeq, the sequence number from the CSeq, and the sequence number from the RSeq of the
     * reliable provisional response.
     * 
     * @see javax.sip.Dialog#createPrack(javax.sip.message.Response)
     */
public Request createPrack(Response relResponse) throws DialogDoesNotExistException, SipException {
    if (this.getState() == null || this.getState().equals(DialogState.TERMINATED))
        throw new DialogDoesNotExistException("Dialog not initialized or terminated");
    if ((RSeq) relResponse.getHeader(RSeqHeader.NAME) == null) {
        throw new SipException("Missing RSeq Header");
    }
    try {
        SIPResponse sipResponse = (SIPResponse) relResponse;
        SIPRequest sipRequest = (SIPRequest) this.createRequest(Request.PRACK, (SIPResponse) relResponse);
        String toHeaderTag = sipResponse.getTo().getTag();
        sipRequest.setToTag(toHeaderTag);
        RAck rack = new RAck();
        RSeq rseq = (RSeq) relResponse.getHeader(RSeqHeader.NAME);
        rack.setMethod(sipResponse.getCSeq().getMethod());
        rack.setCSequenceNumber((int) sipResponse.getCSeq().getSeqNumber());
        rack.setRSequenceNumber(rseq.getSeqNumber());
        sipRequest.setHeader(rack);
        return (Request) sipRequest;
    } catch (Exception ex) {
        InternalErrorHandler.handleException(ex);
        return null;
    }
}