private void checkSslConfig() throws IOException {
// Get the reference to the RMI Registry and lookup RMIServer stub
//
Registry registry;
try {
registry =
LocateRegistry.getRegistry(registryHostName, registryPort, sslRMIClientSocketFactory);
try {
stub = (RMIServer) registry.lookup("jmxrmi");
} catch (NotBoundException nbe) {
throw (IOException) new IOException(nbe.getMessage()).initCause(nbe);
}
sslRegistry = true;
} catch (IOException e) {
registry = LocateRegistry.getRegistry(registryHostName, registryPort);
try {
stub = (RMIServer) registry.lookup("jmxrmi");
} catch (NotBoundException nbe) {
throw (IOException) new IOException(nbe.getMessage()).initCause(nbe);
}
sslRegistry = false;
}
// Perform the checks for secure stub
//
try {
checkStub(stub, rmiServerImplStubClass);
sslStub = true;
} catch (SecurityException e) {
sslStub = false;
}
}
/**
* ***************************************************************
*
* @param ip
* @param port
* @return
*/
public ChordMessageInterface rmiChord(String ip, int port) {
ChordMessageInterface chord = null;
try {
Registry registry = LocateRegistry.getRegistry(ip, port);
chord = (ChordMessageInterface) (registry.lookup("Chord"));
return chord;
} catch (RemoteException e) {
e.printStackTrace();
} catch (NotBoundException e) {
e.printStackTrace();
}
return null;
}
public ArrayList<KeyValueServerInterface> getServersList() throws RemoteException {
//
ArrayList<KeyValueServerInterface> res = new ArrayList();
try {
Registry registry = LocateRegistry.getRegistry();
String[] name = registry.list();
for (String str : name) {
// if( str.equals(server_name) ) continue;
KeyValueServerInterface obj = (KeyValueServerInterface) registry.lookup(str);
res.add(obj);
}
} catch (Exception e) {
System.out.println(e.getMessage());
}
return res;
}
/**
* @param _port
* @param id
* @throws RemoteException
* @throws UnknownHostException
*/
public Chord(int _port, int id) throws RemoteException, UnknownHostException {
finger = new Finger[(1 << M)]; // 1 << M = 2^(M)
// TODO: set the fingers in the array to null
i = id;
port = _port;
// TODO: determine the current IP of the machine
predecessor = null;
InetAddress ip = InetAddress.getLocalHost();
successor = new Finger(ip.getHostAddress(), i, i);
Timer timer = new Timer();
timer.scheduleAtFixedRate(
new TimerTask() {
@Override
public void run() {
try {
stabilize();
} catch (RemoteException | UnknownHostException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
fixFingers();
checkPredecessor();
}
},
500,
500);
try {
// create the registry and bind the name and object.
System.out.println("Starting RMI at port=" + port);
registry = LocateRegistry.createRegistry(port);
registry.rebind("Chord", this);
} catch (RemoteException e) {
throw e;
}
}