/**
* Create a MonitoredHostProvider instance using the given HostIdentifier.
*
* @param hostId the host identifier for this MonitoredHost
* @throws MonitorException Thrown on any error encountered while communicating with the remote
* host.
*/
public MonitoredHostProvider(HostIdentifier hostId) throws MonitorException {
this.hostId = hostId;
this.listeners = new ArrayList();
this.interval = DEFAULT_POLLING_INTERVAL;
this.activeVms = new HashSet();
String rmiName;
String sn = serverName;
String path = hostId.getPath();
if ((path != null) && (path.length() > 0)) {
sn = path;
}
if (hostId.getPort() != -1) {
rmiName = "rmi://" + hostId.getHost() + ":" + hostId.getPort() + sn;
} else {
rmiName = "rmi://" + hostId.getHost() + sn;
}
try {
remoteHost = (RemoteHost) Naming.lookup(rmiName);
} catch (RemoteException e) {
/*
* rmi registry not available
*
* Access control exceptions, where the rmi server refuses a
* connection based on policy file configuration, come through
* here on the client side. Unfortunately, the RemoteException
* doesn't contain enough information to determine the true cause
* of the exception. So, we have to output a rather generic message.
*/
String message = "RMI Registry not available at " + hostId.getHost();
if (hostId.getPort() == -1) {
message = message + ":" + java.rmi.registry.Registry.REGISTRY_PORT;
} else {
message = message + ":" + hostId.getPort();
}
if (e.getMessage() != null) {
throw new MonitorException(message + "\n" + e.getMessage(), e);
} else {
throw new MonitorException(message, e);
}
} catch (NotBoundException e) {
// no server with given name
String message = e.getMessage();
if (message == null) message = rmiName;
throw new MonitorException("RMI Server " + message + " not available", e);
} catch (MalformedURLException e) {
// this is a programming problem
e.printStackTrace();
throw new IllegalArgumentException("Malformed URL: " + rmiName);
}
this.vmManager = new RemoteVmManager(remoteHost);
this.timer = new Timer(true);
}
public static void main(String[] args) {
String host = args[0];
int port = Integer.parseInt(args[1]);
long id = Long.parseLong(args[2]);
String character = args[3];
long actorId = Long.parseLong(args[4]);
// Install an RMISecurityManager, if there is not a
// SecurityManager already installed
if (System.getSecurityManager() == null) {
System.setSecurityManager(new RMISecurityManager());
}
String name = "rmi://" + host + ":" + port + "/MovieDatabase";
try {
MovieDatabase db = (MovieDatabase) Naming.lookup(name);
db.noteCharacter(id, character, actorId);
Movie movie = db.getMovie(id);
out.println(movie.getTitle());
for (Map.Entry entry : movie.getCharacters().entrySet()) {
out.println(" " + entry.getKey() + "\t" + entry.getValue());
}
} catch (RemoteException | NotBoundException | MalformedURLException ex) {
ex.printStackTrace(System.err);
}
}
/**
* Costruttore di classe. Inizializza la griglia e si collega al server.
*
* @throws MalformedURLException
* @throws RemoteException
* @throws NotBoundException
*/
public TicTacToeClient() throws MalformedURLException, RemoteException, NotBoundException {
idGameCreated = "";
idGameJoined = "";
grid = new int[Game.GRID_DIMENSION][Game.GRID_DIMENSION];
for (int i = 0; i < Game.GRID_DIMENSION; i++)
for (int j = 0; j < Game.GRID_DIMENSION; j++) grid[i][j] = Game.FREE_CELL;
wrs = new LinkedList<Watcher>();
server = (TicTacToeServer) Naming.lookup("rmi://" + IP_SERVER + "/tictactoe");
}
public TopoAPI getHandle() {
TopoAPI topo = null;
ManagedObject child = null;
TopoObject to = null;
Vector v = new Vector();
try {
topo = (TopoAPI) Naming.lookup("//192.168.15.70/TopoAPI");
System.out.println("sucessfully got the handle");
} catch (Exception exx) {
System.out.println("Exception while getting handle " + exx);
}
return topo;
}
// we define the method for getting a video link when pressing enter
public String getvidlink() {
try {
System.setSecurityManager(new SecurityManager());
ipadd = tfIP.getText();
Interface client = (Interface) Naming.lookup("rmi://" + ipadd + "/getvid");
// Get the String entered into the TextField tfInput, convert to int
link = tfInput.getText();
vlink = client.getvid(link);
} catch (Exception e) {
System.out.println("[System] Server failed: " + e);
}
return vlink;
}
/**
* Instantiates an event handler for forwarding events from a specific object.
*
* @param receiverAddress The address of the RMI service to be called when the notification is
* forwarded.
* @param rmiConnectorServer The Rmi connector Server
*/
public RmiNotificationForwarder(
RmiConnectorAddress receiverAddress, RmiConnectorServer rmiConnectorServer)
throws RemoteException, IllegalAccessException {
this.receiverAddress = receiverAddress;
this.rmiConnectorServer = rmiConnectorServer;
// ---------------------------
// build the RMI url
// ---------------------------
String receiverName =
new String(
"rmi://"
+ receiverAddress.getHost()
+ ":"
+ receiverAddress.getPort()
+ "/"
+ receiverAddress.getName());
if (logger.finestOn()) {
logger.finest("Constructor", "looking for " + receiverName);
}
// ---------------------------
// We are going to try to get a reference on the receiver
// ---------------------------
try {
this.rmiNotificationReceiver = (RmiNotificationReceiver) Naming.lookup(receiverName);
connected = true;
if (this.rmiNotificationReceiver == null) {
if (logger.finestOn()) {
logger.finest("handleEvent", "receiver is null");
}
throw new RemoteException(
"Can't contact RMI Notification receive server at " + receiverName);
}
} catch (Exception x) {
throw new RemoteException("Can't contact RMI Notification receive server at " + receiverName);
}
}
/**
* Generate random data and assign it to a variable in a belief network. The command line
* arguments are:
*
* <pre>
* java riso.remote_data.RandomEvidence [-h rmi-host] [-s server-name]
* </pre>
*
* The <tt>rmi-host</tt> is the name of the host running <tt>rmiregistry</tt>. The
* <tt>server-name</tt> is the name by which this data source will be known.
*/
public static void main(String[] args) {
String bn_name = null, variable_name = null;
int i, j;
for (i = 0; i < args.length; i++) {
switch (args[i].charAt(1)) {
case 'b':
bn_name = args[++i];
break;
case 'x':
variable_name = args[++i];
break;
}
}
System.err.println("RandomEvidence: bn_name: " + bn_name + " variable_name: " + variable_name);
try {
String url = "rmi://" + bn_name;
AbstractBeliefNetwork bn = (AbstractBeliefNetwork) Naming.lookup(url);
AbstractVariable v = (AbstractVariable) bn.name_lookup(variable_name);
Distribution p = bn.get_posterior(v);
System.err.println("RandomEvidence: sample from: ");
System.err.println(p.format_string("\t"));
while (true) {
double[] x = p.random();
bn.assign_evidence(v, x[0]);
try {
Thread.sleep(10000);
} catch (InterruptedException e) {
}
}
} catch (Exception e) {
e.printStackTrace();
System.exit(1);
}
}
// we define the method for downloading when pressing on the download button
public void qrvidlink() {
try {
System.setSecurityManager(new SecurityManager());
ipadd = tfIP.getText();
Interface client = (Interface) Naming.lookup("rmi://" + ipadd + "/getvid");
// Get the String entered into the TextField tfInput, convert to int
link = tfInput.getText();
vlink = client.getvid(link);
// here we receive the image serialized into bytes from the server and
// saved it on the client as png image
byte[] bytimg = client.qrvid(vlink);
BufferedImage img = ImageIO.read(new ByteArrayInputStream(bytimg));
File outputfile = new File("qrcode.png");
ImageIO.write(img, "png", outputfile);
// img= new ImageIcon(bytimg.toByteArray());
} catch (Exception e) {
System.out.println("[System] Server failed: " + e);
}
}
public static void main(String[] args) {
boolean all_x = false, do_bind = false;
String bn_name = "", context_name = "";
int i;
for (i = 0; i < args.length; i++) {
if (args[i].charAt(0) != '-') continue;
switch (args[i].charAt(1)) {
case 'b':
bn_name = args[++i];
break;
case 'c':
context_name = args[++i];
break;
case 'r':
do_bind = true;
break;
}
}
AbstractBeliefNetworkContext bnc = null;
AbstractBeliefNetwork bn = null;
AbstractVariable x = null, e_var = null;
try {
if ("".equals(context_name)) {
BeliefNetworkContext local_bnc = new BeliefNetworkContext(null);
bnc = local_bnc;
} else {
String url = "rmi://" + context_name;
System.err.println("Informativeness: url: " + url);
long t0 = System.currentTimeMillis();
bnc = (AbstractBeliefNetworkContext) Naming.lookup(url);
long tf = System.currentTimeMillis();
System.err.println(
"Informativeness: Naming.lookup complete (for belief net context), elapsed time: "
+ ((tf - t0) / 1000.0)
+ " [s]");
}
bn = (AbstractBeliefNetwork) bnc.load_network(bn_name);
if (do_bind) {
System.err.println("Informativeness: bind belief net.");
bnc.bind(bn);
}
String e_name, x_name;
double e_value;
for (i = 0; i < args.length; i++) {
if (args[i].charAt(0) != '-') continue;
switch (args[i].charAt(1)) {
case 'x':
if ("-xall".equals(args[i])) {
AbstractVariable[] u = bn.get_variables();
for (int j = 0; j < u.length; j++) {
Distribution xposterior = bn.get_posterior(u[j]);
System.out.println("Informativeness: posterior for " + u[j].get_name() + ":");
System.out.print(" " + xposterior.format_string(" "));
}
} else {
x_name = args[++i];
long t0 = System.currentTimeMillis();
x = (AbstractVariable) bn.name_lookup(x_name);
long tf = System.currentTimeMillis();
System.err.println(
"Informativeness: Naming.lookup complete (for variable ref), elapsed time: "
+ ((tf - t0) / 1000.0)
+ " [s]");
if (x == null) throw new Exception("name_lookup failed: x: " + x_name);
Distribution xposterior = bn.get_posterior(x);
System.out.println("Informativeness: posterior for " + x.get_name() + ":");
System.out.print(" " + xposterior.format_string(" "));
}
break;
case 'e':
if (args[i].length() > 2 && args[i].charAt(2) == '-') {
e_name = args[++i];
System.err.println("Informativeness.main: evidence: clear " + e_name);
e_var = (AbstractVariable) bn.name_lookup(e_name);
bn.clear_posterior(e_var);
} else {
e_name = args[++i];
e_value = Double.parseDouble(args[++i]);
System.err.println(
"Informativeness.main: evidence: set " + e_name + " to " + e_value);
long t0 = System.currentTimeMillis();
e_var = (AbstractVariable) bn.name_lookup(e_name);
long tf = System.currentTimeMillis();
System.err.println(
"Informativeness: Naming.lookup complete (for variable ref), elapsed time: "
+ ((tf - t0) / 1000.0)
+ " [s]");
bn.assign_evidence(e_var, e_value);
}
break;
default:
continue;
}
}
} catch (Exception e) {
e.printStackTrace();
}
System.exit(0);
}
public static void main(String args[]) {
if (args.length != 2) {
System.err.println("Uso: ObservadorCentralita hostregistro numPuertoRegistro");
return;
}
// Instancia gestor de seguridad
if (System.getSecurityManager() == null) {
System.setSecurityManager(new SecurityManager());
}
try {
// Obtiene referencia remota del servicio de rmiregistry
ServicioCentralita srv =
(ServicioCentralita) Naming.lookup("//" + args[0] + ":" + args[1] + "/Centralita");
// | |-> Número de
// puerto escucha
// |-> Host en el que se ejecuta el
// servicio
String nombreServicio = "default";
while (nombreServicio == "default") {
// Captura el nombre del servicio
System.out.println(
"Elija el servicio:\n\t[1] Bomberos\n\t[2] Sanitarios\n\t[3] Policía\n\t[4] Guardia Civil");
Scanner input = new Scanner(System.in);
String tipoServicio = input.nextLine();
switch (tipoServicio) {
case "1":
nombreServicio = "Bomberos";
break;
case "2":
nombreServicio = "Sanitarios";
break;
case "3":
nombreServicio = "Policia";
break;
case "4":
nombreServicio = "Guardia Civil";
break;
default:
nombreServicio = "default";
break;
}
}
// Crea nuevo observador y lo registra en la lista
ObservadorImpl o = new ObservadorImpl(nombreServicio);
// Llamada al método remoto 'addObservador' del servicio
srv.addObservador(o, nombreServicio);
// Comrpeuba el nombre del servicio para imprimir código de color
if (nombreServicio.equals("Bomberos")) {
System.out.println(
"\u001B[31mObservador " + nombreServicio + " registrado en la centralita\u001B[0m\n");
} else if (nombreServicio.equals("Sanitarios")) {
System.out.println(
"\u001B[35mObservador " + nombreServicio + " registrado en la centralita\u001B[0m\n");
} else if (nombreServicio.equals("Policia")) {
System.out.println(
"\u001B[34mObservador " + nombreServicio + " registrado en la centralita\u001B[0m\n");
} else if (nombreServicio.equals("Guardia Civil")) {
System.out.println(
"\u001B[32mObservador " + nombreServicio + " registrado en la centralita\u001B[0m\n");
}
// Se mantiene esperando hasta que se para con Ctrl+D
System.out.println("Para salir, pulsar Ctrl+D\n");
Scanner sleep = new Scanner(System.in);
while (sleep.hasNextInt()) {}
// Elimina de la lista al observador. Llamada al método remoto 'delObservador' del servicio
srv.delObservador(o, nombreServicio);
System.exit(0);
}
// Excepción RMI
catch (RemoteException e) {
System.err.println("Error de comunicación: " + e.toString());
}
// Excepción cliente
catch (Exception e) {
System.err.println("Excepción en ObservadorCentralita: ");
e.printStackTrace();
}
}