private ArrayList getLocalViaHeaders() throws IOException {
/*
* We can't keep a cached copy because the callers
* of this method change the viaHeaders. In particular
* a branch may be added which causes INVITES to fail.
*/
if (viaHeaders != null) {
return viaHeaders;
}
ListeningPoint lp = sipProvider.getListeningPoint();
viaHeaders = new ArrayList();
try {
String addr = lp.getIPAddress();
ViaHeader viaHeader =
headerFactory.createViaHeader(addr, lp.getPort(), lp.getTransport(), null);
viaHeader.setRPort();
viaHeaders.add(viaHeader);
return viaHeaders;
} catch (ParseException e) {
throw new IOException(
"A ParseException occurred while creating Via Headers! " + e.getMessage());
} catch (InvalidArgumentException e) {
throw new IOException(
"Unable to create a via header for port " + lp.getPort() + " " + e.getMessage());
}
}
/**
* Returns the JAIN-SIP <tt>ListeningPoint</tt> associated to the given transport string.
*
* @param transport a string like "UDP", "TCP" or "TLS".
* @return the LP associated to the given transport.
*/
@SuppressWarnings("unchecked") // jain-sip legacy code
public ListeningPoint getLP(String transport) {
ListeningPoint lp;
Iterator<ListeningPoint> it = this.stack.getListeningPoints();
while (it.hasNext()) {
lp = it.next();
// FIXME: JAIN-SIP stack is not consistent with case
// (reported upstream)
if (lp.getTransport().toLowerCase().equals(transport.toLowerCase())) return lp;
}
throw new IllegalArgumentException("Invalid transport: " + transport);
}