* @param top -- flag that indicates which end of header list to process.
*/
public void removeHeader(String headerName, boolean top) {
String headerNameLowerCase = SIPHeaderNamesCache.toLowerCase(headerName);
SIPHeader toRemove = (SIPHeader) nameTable.get(headerNameLowerCase);
// nothing to do then we are done.
if (toRemove == null)
return;
if (toRemove instanceof SIPHeaderList) {
SIPHeaderList< ? > hdrList = (SIPHeaderList< ? >) toRemove;
if (top)
hdrList.removeFirst();
else
hdrList.removeLast();
// Clean up empty list
if (hdrList.isEmpty()) {
Iterator<SIPHeader> li = this.headers.iterator();
while (li.hasNext()) {
SIPHeader sipHeader = (SIPHeader) li.next();
if (sipHeader.getName().equalsIgnoreCase(headerNameLowerCase))
li.remove();
}
// JvB: also remove it from the nameTable! Else NPE in
// DefaultRouter
nameTable.remove(headerNameLowerCase);
}
} else {
this.nameTable.remove(headerNameLowerCase);
if (toRemove instanceof From) {
this.fromHeader = null;
} else if (toRemove instanceof To) {
this.toHeader = null;
} else if (toRemove instanceof CSeq) {
this.cSeqHeader = null;
} else if (toRemove instanceof CallID) {
this.callIdHeader = null;
} else if (toRemove instanceof MaxForwards) {
this.maxForwardsHeader = null;
} else if (toRemove instanceof ContentLength) {
this.contentLengthHeader = null;
}
Iterator<SIPHeader> li = this.headers.iterator();
while (li.hasNext()) {
SIPHeader sipHeader = (SIPHeader) li.next();
if (sipHeader.getName().equalsIgnoreCase(headerName))
li.remove();
}
}
}