/**
* Attach a header (replacing the original header).
* @param header SIPHeader that replaces a header of the same type.
*/
func (this *SIPMessage) SetHeader(h header.Header) (IllegalArgumentException error) {
if h == nil {
return errors.New("IllegalArgumentException: nil header!")
}
if hl, ok := h.(header.SIPHeaderLister); ok {
// Ignore empty lists.
if hl.Len() == 0 {
return nil
}
}
this.RemoveHeader(h.GetHeaderName())
return this.AttachHeader3(h, true, false)
}
/**
* Attach the header to the SIP Message structure at a specified
* position in its list of headers.
*
* @param header Header to attach.
* @param replaceFlag If true then replace the existing header.
* @param index Location in the header list to insert the header.
* @exception SIPDuplicateHeaderException if the header is of a type
* that cannot tolerate duplicates and one of this type already exists
* (e.g. CSeq header).
* @throws IndexOutOfBoundsException If the index specified is
* greater than the number of headers that are in this message.
*/
func (this *SIPMessage) AttachHeader3(h header.Header, replaceFlag, top bool) error { //throws SIPDuplicateHeaderException {
if h == nil {
errors.New("NullPointerException: nil header")
}
if replaceFlag {
delete(this.nameTable, strings.ToLower(h.GetName()))
} else {
if _, present := this.nameTable[strings.ToLower(h.GetName())]; present {
if _, ok := h.(header.SIPHeaderLister); !ok {
if cl, ok := h.(*header.ContentLength); ok {
this.contentLengthHeader.SetContentLength(cl.GetContentLength())
}
// Just ignore duplicate header.
return nil
}
}
}
originalHeader := this.GetHeader(h.GetName())
// Delete the original sh from our list structure.
if originalHeader != nil {
for li := this.headers.Front(); li != nil; li = li.Next() {
next := li.Value.(header.Header)
if next == originalHeader {
this.headers.Remove(li)
}
}
}
if this.GetHeader(h.GetName()) == nil {
this.nameTable[strings.ToLower(h.GetName())] = h
this.headers.PushBack(h)
} else {
if hs, ok := h.(header.SIPHeaderLister); ok {
hdrlist := this.nameTable[strings.ToLower(h.GetName())].(header.SIPHeaderLister)
if hdrlist != nil {
hdrlist.Concatenate(hs, top)
} else {
this.nameTable[strings.ToLower(h.GetName())] = h
}
} else {
this.nameTable[strings.ToLower(h.GetName())] = h
}
}
// Direct accessor fields for frequently accessed headers.
if sh, ok := h.(*header.From); ok {
this.fromHeader = sh
} else if sh, ok := h.(*header.ContentLength); ok {
this.contentLengthHeader = sh
} else if sh, ok := h.(*header.To); ok {
this.toHeader = sh
} else if sh, ok := h.(*header.CSeq); ok {
this.cSeqHeader = sh
} else if sh, ok := h.(*header.CallID); ok {
this.callIdHeader = sh
} else if sh, ok := h.(*header.MaxForwards); ok {
this.maxForwardsHeader = sh
}
return nil
}