/* (non-Javadoc)
* @see madkit.netcomm.MadkitNetworkAgent#handleNetworkMessage(madkit.netcomm.NetworkMessage)
*/
protected void handleNetworkMessage(NetworkMessage message) {
switch (message.getType()) {
case NetworkMessage.SYNCH_REQUEST:
debug("handling NetworkMessage.SYNCH_REQUEST");
Vector vec = (Vector) message.getArgument();
handleSynchRequest(message.getSender(), vec);
break;
case NetworkMessage.ROUTE_MESSAGE:
debug("Routing message");
sendDistantMessage((KernelMessage) message.getArgument());
break;
case NetworkMessage.CONNECT_KERNEL:
debug("CONNECT_KERNEL received");
Vector v1 = (Vector) message.getArgument();
Socket brSocket = (Socket) v1.get(0);
KernelAddress id = (KernelAddress) v1.get(1); // check if the kernel is known
SocketKernel distantSK = (SocketKernel) v1.get(2);
if (id != null && routeTable.containsKey(id)) {
debug("broadcast from known kernel");
try {
brSocket.close();
} catch (IOException e) {
debug(e.toString());
}
break;
}
launchNetConfigConnection(distantSK, brSocket, id);
break;
case NetworkMessage.KERNEL_DISCONNECTED:
routeTable.remove(((KernelAddress) message.getArgument()).getID());
break;
case NetworkMessage.UPDATE_ROUTE:
debug("UPDATE_ROUTE");
Vector v = (Vector) message.getArgument();
KernelAddress addr = (KernelAddress) v.get(0);
AgentAddress p2p = (AgentAddress) v.get(1);
DistantKernelInformation info = (DistantKernelInformation) routeTable.remove(addr.getID());
info.setP2PAgent(p2p);
info.setProtocol((String) v.get(2));
routeTable.put(addr.getID(), info);
sendMessage(
getAgentWithRole(community, group, "netagent"),
new NetworkMessage(NetworkMessage.UPDATE_ROUTE, v));
sendMessage(
message.getSender(), new NetworkMessage(NetworkMessage.UPDATE_ROUTE_DONE, addr));
break;
default:
debug("unknown NetworkMessage Received");
debug(message.toString());
break;
}
}
/**
* Launches a new NetConfigAgent to configure and establish a connection with a distant Kernel.
*
* @param distantSocket SocketKernel of the distant kernel.
*/
private void launchNetConfigConnection(
SocketKernel distantSocket, Socket socket, KernelAddress dka) {
try {
if (socket == null) {
socket = new Socket(distantSocket.getHost(), distantSocket.getPort());
}
NetConfigAgent configa =
new NetConfigAgent(socket, myInfo, distantSocket, new HashSet(routeTable.values()));
String name = "netconfigAgent@";
if (distantSocket != null) {
name += distantSocket.getHost() + distantSocket.getPort();
}
launchAgent(configa, name, false);
if (dka != null)
System.err.println("This agent will be connected to me ! " + dka.getInformation());
pause(500); // Needed unless some agents couldn't be launched when we invoke them
} catch (UnknownHostException e) {
debug("UnknownHostException caught " + e);
} catch (IOException e) {
debug("IOException caught " + e);
} catch (Exception e) {
System.err.println("Connexion failed for this reason : " + e.getMessage());
}
}
/**
* @param address
* @return
*/
private boolean isConfiguring(KernelAddress address) {
return routeTable.containsKey(address.getID());
}
/**
* Adds a route to the routing table. Before adding a new kernel, it checks if the kernel's ID
* already existes in the routing table. if it does, no action is taken and returns false.
*
* @param ka KernelAddress of the distant kernel to add.
* @param addr AgentAddress of the P2PAgent responsable for the connection with the kernel
* @param dkinfo SocketKernel of the distant Kernel
* @return true iff the distant kernel was add. false if the kernel already has an entry in the
* route table
*/
private boolean addRoute(
KernelAddress ka, AgentAddress addr, SocketKernel dkinfo, String protocol) {
DistantKernelInformation tmp = (DistantKernelInformation) routeTable.get(ka.getID());
if (tmp != null) {
if (tmp.getProtocol().equals(CONFIG)) {
if (protocol.equals(CONFIG)) {
// Added by saber
KernelAddress agency = tmp.getDistantKernelAddress();
if (!agency.getKernelName().equals(ka.getKernelName())
|| (agency.supportMobility()
!= ka.supportMobility())) // the distantKernel has changed its name or mobility
// aspect
{
agency.setKernelName(ka.getKernelName());
if (ka.supportMobility()) agency.enableMobility();
else agency.disableMobility();
return true;
} else // end of saber modification
return false;
} else {
routeTable.remove(ka.getID());
updateDistantAgencies();
}
} else {
debug("Kernel " + ka + " already added");
return false;
}
}
debug("adding new kernel " + ka.getID());
routeTable.put(ka.getID(), new DistantKernelInformation(ka, addr, dkinfo, protocol));
updateDistantAgencies();
if (!protocol.equals(CONFIG)) sendConnectedKernelInformation(dkinfo, ka, addr, protocol);
return true;
}
private AgentAddress getP2PAddress(KernelAddress kernelAddress) {
DistantKernelInformation info =
(DistantKernelInformation) routeTable.get(kernelAddress.getID());
return info.getP2PAgent();
}
