public void addIncomingConnection(IConnection conn) {
PeerState state = fsm.getState(PeerState.class);
if (DOWN == state || INITIAL == state) {
conn.addConnectionListener(connListener);
logger.debug("Append external connection {}", conn.getKey());
} else {
logger.debug("Releasing connection {}", conn.getKey());
incConnections.remove(conn.getKey());
try {
conn.release();
} catch (IOException e) {
logger.debug("Can not close external connection", e);
} finally {
logger.debug("Close external connection");
}
}
}
public int processCerMessage(String key, IMessage message) {
logger.debug("Processing CER");
int resultCode = ResultCode.SUCCESS;
try {
if (connection == null || !connection.isConnected()) {
connection = incConnections.get(key);
}
// Process cer
Set<ApplicationId> newAppId = getCommonApplicationIds(message);
if (newAppId.isEmpty()) {
logger.debug(
"Processing CER failed... no common application, message AppIps {}",
message.getApplicationIdAvps());
return ResultCode.NO_COMMON_APPLICATION;
}
// Handshake
if (!connection.getKey().equals(key)) { // received cer by other connection
logger.debug("CER received by other connection {}", key);
switch (fsm.getState(PeerState.class)) {
case DOWN:
resultCode = ResultCode.SUCCESS;
break;
case INITIAL:
boolean isLocalWin = false;
if (isElection)
try {
isLocalWin =
metaData
.getLocalPeer()
.getUri()
.getFQDN()
.compareTo(message.getAvps().getAvp(Avp.ORIGIN_HOST).getOctetString())
<= 0;
} catch (Exception exc) {
isLocalWin = true;
}
logger.debug("local peer is win - {}", isLocalWin);
resultCode = 0;
if (isLocalWin) {
IConnection c = incConnections.get(key);
c.remConnectionListener(connListener);
c.disconnect();
incConnections.remove(key);
} else {
connection.disconnect(); // close current connection and work with other connection
connection.remConnectionListener(connListener);
connection = incConnections.remove(key);
resultCode = ResultCode.SUCCESS;
}
break;
}
} else {
logger.debug("CER received by current connection");
if (fsm.getState(PeerState.class).equals(INITIAL)) // received cer by current connection
resultCode = 0; // NOP
incConnections.remove(key);
}
if (resultCode == ResultCode.SUCCESS) {
commonApplications.clear();
commonApplications.addAll(newAppId);
fillIPAddressTable(message);
}
} catch (Exception exc) {
logger.debug("Can not process CER", exc);
}
logger.debug("CER result {}", resultCode);
return resultCode;
}