public void process(Packet packet) throws ComponentException {
logger.debug("Packet payload " + packet.toXML() + " going to federation.");
String to = packet.getTo().toString();
String uniqueId = generateUniqueId(packet);
idMap.put(uniqueId, packet.getID());
packet.setID(uniqueId);
sentRemotePackets.put(uniqueId, packet.getFrom());
try {
extractNodeDetails(packet);
// Do we have a map already?
if (discoveredServers.containsKey(to)) {
packet.setTo(new JID(discoveredServers.get(to)));
sendPacket(packet.createCopy());
return;
}
// Are we already discovering a remote server?
if (!remoteChannelDiscoveryStatus.containsKey(to)) {
discoverRemoteChannelServer(to, packet.getID());
} else if (remoteChannelDiscoveryStatus.get(to).equals(NO_CHANNEL_SERVER)) {
logger.error("No remote channel server for " + to);
IQ reply = IQ.createResultIQ((IQ) packet);
reply.setError(
new PacketError(
PacketError.Condition.remote_server_not_found, PacketError.Type.cancel));
component.sendPacket(reply);
return;
}
// Add packet to list
if (!waitingStanzas.containsKey(to)) {
waitingStanzas.put(to, new ArrayList<Packet>());
}
waitingStanzas.get(to).add(packet);
logger.debug(
"Adding packet to waiting stanza list for "
+ to
+ " (size "
+ waitingStanzas.get(to).size()
+ ")");
} catch (Exception e) {
logger.error(e);
}
}
protected IQ error(Packet packet, PacketError.Condition condition) {
IQ reply;
reply = new IQ(IQ.Type.error, packet.getID());
reply.setFrom(packet.getTo());
reply.setTo(packet.getFrom());
reply.setError(condition);
return reply;
}
private void extractNodeDetails(Packet packet) {
try {
String packetXml = packet.toXML();
if (!packetXml.contains("node=")) {
return;
}
nodeMap.put(packet.getID(), packetXml.split("node=\"")[1].split("\"")[0]);
} catch (NullPointerException e) {
logger.info("No node details found in federated packet");
logger.error(e);
} catch (ArrayIndexOutOfBoundsException e) {
logger.info("Error extracting node information from federated packet");
logger.error(e);
}
}
/**
* Generate a unique ID for a packet
*
* <p>Supplied packet IDs might not be unique so we use the ID and the FROM values to create a
* hash which we map back to the original packet ID.
*
* @param packet
* @return unique ID for the packet
*/
private String generateUniqueId(Packet packet) {
return generateMd5(packet.getID() + packet.getFrom());
}