/**
* 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;
}
