Java Code Examples for java.rmi.registry.LocateRegistry#getRegistry()

/**
 * Returns the registry at a given host, port and socket factory.
 * If "host" is null, uses default host.
 * If "port" is non-positive, uses default port.
 * If "socketFactory" is null, uses the default socket.
 */
private static Registry getRegistry(String host, int port,
            RMIClientSocketFactory socketFactory)
        throws NamingException
{
    // %%% We could cache registry connections here.  The transport layer
    // may already reuse connections.
    try {
        if (socketFactory == null) {
            return LocateRegistry.getRegistry(host, port);
        } else {
            return LocateRegistry.getRegistry(host, port, socketFactory);
        }
    } catch (RemoteException e) {
        throw (NamingException)wrapRemoteException(e).fillInStackTrace();
    }
}
 

/**
 * Locate or create the RMI registry for this exporter.
 * @param registryPort the registry port to use
 * @return the RMI registry
 * @throws RemoteException if the registry couldn't be located or created
 */
protected Registry getRegistry(int registryPort) throws RemoteException {
	if (this.alwaysCreateRegistry) {
		logger.debug("Creating new RMI registry");
		return LocateRegistry.createRegistry(registryPort);
	}
	if (logger.isDebugEnabled()) {
		logger.debug("Looking for RMI registry at port '" + registryPort + "'");
	}
	synchronized (LocateRegistry.class) {
		try {
			// Retrieve existing registry.
			Registry reg = LocateRegistry.getRegistry(registryPort);
			testRegistry(reg);
			return reg;
		}
		catch (RemoteException ex) {
			logger.trace("RMI registry access threw exception", ex);
			logger.debug("Could not detect RMI registry - creating new one");
			// Assume no registry found -> create new one.
			return LocateRegistry.createRegistry(registryPort);
		}
	}
}
 

/**
 * Returns the registry at a given host, port and socket factory.
 * If "host" is null, uses default host.
 * If "port" is non-positive, uses default port.
 * If "socketFactory" is null, uses the default socket.
 */
private static Registry getRegistry(String host, int port,
            RMIClientSocketFactory socketFactory)
        throws NamingException
{
    // %%% We could cache registry connections here.  The transport layer
    // may already reuse connections.
    try {
        if (socketFactory == null) {
            return LocateRegistry.getRegistry(host, port);
        } else {
            return LocateRegistry.getRegistry(host, port, socketFactory);
        }
    } catch (RemoteException e) {
        throw (NamingException)wrapRemoteException(e).fillInStackTrace();
    }
}
 

/**
 * Locate or create the RMI registry.
 * @param registryHost the registry host to use (if this is specified,
 * no implicit creation of a RMI registry will happen)
 * @param registryPort the registry port to use
 * @param clientSocketFactory the RMI client socket factory for the registry (if any)
 * @param serverSocketFactory the RMI server socket factory for the registry (if any)
 * @return the RMI registry
 * @throws java.rmi.RemoteException if the registry couldn't be located or created
 */
protected Registry getRegistry(String registryHost, int registryPort,
		@Nullable RMIClientSocketFactory clientSocketFactory, @Nullable RMIServerSocketFactory serverSocketFactory)
		throws RemoteException {

	if (registryHost != null) {
		// Host explicitly specified: only lookup possible.
		if (logger.isDebugEnabled()) {
			logger.debug("Looking for RMI registry at port '" + registryPort + "' of host [" + registryHost + "]");
		}
		Registry reg = LocateRegistry.getRegistry(registryHost, registryPort, clientSocketFactory);
		testRegistry(reg);
		return reg;
	}

	else {
		return getRegistry(registryPort, clientSocketFactory, serverSocketFactory);
	}
}
 

private static void testConnect(int port, int rmiPort) throws Exception {

        dbg_print("RmiRegistry lookup...");

        dbg_print("Using port: " + port);

        dbg_print("Using rmi port: " + rmiPort);

        Registry registry = LocateRegistry.getRegistry(port);

        // "jmxrmi"
        String[] relist = registry.list();
        for (int i = 0; i < relist.length; ++i) {
            dbg_print("Got registry: " + relist[i]);
        }

        String jmxUrlStr = (rmiPort != 0) ?
            String.format(
                "service:jmx:rmi://localhost:%d/jndi/rmi://localhost:%d/jmxrmi",
                rmiPort,
                port) :
            String.format(
                "service:jmx:rmi:///jndi/rmi://localhost:%d/jmxrmi",
                port);

        JMXServiceURL url = new JMXServiceURL(jmxUrlStr);

        JMXConnector c = JMXConnectorFactory.connect(url, null);

        MBeanServerConnection conn = c.getMBeanServerConnection();
        ObjectName pattern = new ObjectName("java.lang:type=Memory,*");

        int count = listMBeans(conn,pattern,null);
        if (count == 0)
            throw new Exception("Expected at least one matching " +
                                "MBean for " + pattern);
    }
 

public static void main(String[] args) {
    try {
        int registryPort =
            Integer.parseInt(System.getProperty("rmi.registry.port"));
        Registry registry =
            LocateRegistry.getRegistry("", registryPort);
        Remote stub = registry.lookup(LeaseCheckInterval.BINDING);
        Runtime.getRuntime().halt(0);
    } catch (Exception e) {
        e.printStackTrace();
    }
}
 

public String testStub() throws Exception {
try {
    Registry registry = LocateRegistry.getRegistry(port);
    Hello stub = (Hello) registry.lookup("Hello");
    String response = stub.sayHello();
    return response;
    } catch (Exception e) {
        System.err.println("Client exception: " + e.toString());
        throw e;
    }
}
 

public String testStub() throws Exception {
try {
    Registry registry = LocateRegistry.getRegistry(port);
    Hello stub = (Hello) registry.lookup("Hello");
    String response = stub.sayHello();
    return response;
    } catch (Exception e) {
        System.err.println("Client exception: " + e.toString());
        throw e;
    }
}
 

@BeforeSuite
static void setupRegistry() {
    try {
        impl = TestLibrary.createRegistryOnEphemeralPort();
        port = TestLibrary.getRegistryPort(impl);
        registry = LocateRegistry.getRegistry("localhost", port);
    } catch (RemoteException ex) {
        Assert.fail("initialization of registry", ex);
    }

    System.out.printf("RMI Registry filter: %s%n", registryFilter);
}
 

public String getInstance(IStochModelFactory.OutputLevel outputLevel)  {
    String instanceID=null;

 try {
        nModels++;
        instanceID= FactoryBindingID+"_IRmiIStochModel_"+nModels;

        // Create a new model instance
        IStochModelInstance newStochModel = stochModelFactory.getInstance(outputLevel);
        // Create a new server instance and set the new model for this instance
        Server obj = new Server();
        obj.setModel(newStochModel);

        IRmiIStochModel stub = (IRmiIStochModel) UnicastRemoteObject.exportObject(obj, 0);

        // Register this insntance such that it will not be deleted.
        allStochModels.add(stub);

       // Bind the remote object's stub in the registry
     Registry registry = LocateRegistry.getRegistry();
     registry.bind(instanceID, stub);

     System.err.println("Server has created model "+instanceID);
 } catch (Exception e) {
     System.err.println("Server exception when creating new model: " + e.toString());
     e.printStackTrace();
 }
    return instanceID;
}
 

public static void main(String[] args) throws Exception {
    Registry registry = TestLibrary.createRegistryOnUnusedPort();
    int registryPort = TestLibrary.getRegistryPort(registry);
    Registry reg = LocateRegistry.getRegistry("", registryPort);
    FooImpl fooimpl = new FooImpl();
    UnicastRemoteObject.exportObject(fooimpl, 0);
    reg.rebind("foo", fooimpl);
    Foo foostub = (Foo) reg.lookup("foo");
    FooImpl fooimpl2 = new FooImpl();
    UnicastRemoteObject.exportObject(fooimpl2, 0);
    foostub.echo(fooimpl2);
    UnicastRemoteObject.unexportObject(fooimpl, true);
    UnicastRemoteObject.unexportObject(fooimpl2, true);
}
 

public static void main(String args[]) throws Exception {
    try {
        testPkg.Server obj = new testPkg.Server();
        testPkg.Hello stub = (testPkg.Hello) UnicastRemoteObject.exportObject(obj, 0);
        // Bind the remote object's stub in the registry
        Registry registry =
            LocateRegistry.getRegistry(TestLibrary.READTEST_REGISTRY_PORT);
        registry.bind("Hello", stub);

        System.err.println("Server ready");

        // now, let's test client
        testPkg.Client client =
            new testPkg.Client(TestLibrary.READTEST_REGISTRY_PORT);
        String testStubReturn = client.testStub();
        if(!testStubReturn.equals(obj.hello)) {
            throw new RuntimeException("Test Fails : unexpected string from stub call");
        } else {
            System.out.println("Test passed");
        }
        registry.unbind("Hello");

    } catch (Exception e) {
        System.err.println("Server exception: " + e.toString());
        e.printStackTrace();
    }

}
 

public static void main(String[] args) {
    try {
        int registryPort =
            Integer.parseInt(System.getProperty("rmi.registry.port"));
        Registry registry =
            LocateRegistry.getRegistry("", registryPort);
        Remote stub = registry.lookup(LeaseCheckInterval.BINDING);
        Runtime.getRuntime().halt(0);
    } catch (Exception e) {
        e.printStackTrace();
    }
}
 

public String testStub() throws Exception {
try {
    Registry registry = LocateRegistry.getRegistry(port);
    Hello stub = (Hello) registry.lookup("Hello");
    String response = stub.sayHello();
    return response;
    } catch (Exception e) {
        System.err.println("Client exception: " + e.toString());
        throw e;
    }
}
 

public Gtp(InputStream in, OutputStream out, int port) throws Exception {
	this.in = in;
	this.out = out;
	
	// regist RMI service
       Registry registry = null; 
       registry = LocateRegistry.getRegistry("127.0.0.1", port);
   	game = (IGame) registry.lookup("FancyBing"); 
}
 

public static void main(String[] args) throws Exception {
    System.err.println("\nRegression test for bug 4486732\n");

    Factory factoryImpl = new FactoryImpl();
    Factory factoryStub =
        (Factory) UnicastRemoteObject.exportObject(factoryImpl, 0);
    for (int i = 0; i < SESSIONS; i++) {
        Session session = factoryStub.getSession();
        session.ping();
    }
    UnicastRemoteObject.unexportObject(factoryImpl, true);

    Registry registryImpl = LocateRegistry.createRegistry(PORT);
    CSF csf = new CSF();
    Reference<CSF> registryRef = new WeakReference<CSF>(csf);
    Registry registryStub = LocateRegistry.getRegistry("", PORT, csf);
    csf = null;
    registryStub.list();
    registryStub = null;
    UnicastRemoteObject.unexportObject(registryImpl, true);

    System.gc();
    // allow connections to time out
    Thread.sleep(3 * Long.getLong("sun.rmi.transport.connectionTimeout",
                                  15000));
    System.gc();

    if (CSF.deserializedInstances.size() != SESSIONS) {
        throw new Error("unexpected number of deserialized instances: " +
                        CSF.deserializedInstances.size());
    }

    int nonNullCount = 0;
    for (Reference<CSF> ref : CSF.deserializedInstances) {
        csf = ref.get();
        if (csf != null) {
            System.err.println("non-null deserialized instance: " + csf);
            nonNullCount++;
        }
    }
    if (nonNullCount > 0) {
        throw new Error("TEST FAILED: " +
                        nonNullCount + " non-null deserialized instances");
    }

    csf = registryRef.get();
    if (csf != null) {
        System.err.println("non-null registry instance: " + csf);
        throw new Error("TEST FAILED: non-null registry instance");
    }

    System.err.println("TEST PASSED");
}
 

public static void main(String[] args) throws Exception {

        RemoteInterface server = null;
        RemoteInterface proxy = null;

        try {
            System.err.println("export object");
            server = new MultipleRegistries();
            proxy =
                (RemoteInterface) UnicastRemoteObject.exportObject(server, 0);

            System.err.println("proxy = " + proxy);

            System.err.println("export registries");
            Registry registryImpl1 = TestLibrary.createRegistryOnUnusedPort();
            int port1 = TestLibrary.getRegistryPort(registryImpl1);
            Registry registryImpl2 = TestLibrary.createRegistryOnUnusedPort();
            int port2 = TestLibrary.getRegistryPort(registryImpl2);
            System.err.println("bind remote object in registries");
            Registry registry1 = LocateRegistry.getRegistry(port1);
            Registry registry2 = LocateRegistry.getRegistry(port2);

            registry1.bind(NAME, proxy);
            registry2.bind(NAME, proxy);

            System.err.println("lookup remote object in registries");

            RemoteInterface remote1 = (RemoteInterface) registry1.lookup(NAME);
            RemoteInterface remote2 = (RemoteInterface) registry2.lookup(NAME);

            System.err.println("invoke methods on remote objects");
            remote1.passObject(remote1);
            remote2.passObject(remote2);

            System.err.println("TEST PASSED");

        } finally {
            if (proxy != null) {
                UnicastRemoteObject.unexportObject(server, true);
            }
        }
    }
 

public static void main(String[] args) throws Exception {

        RemoteInterface server = null;
        RemoteInterface proxy = null;

        try {
            System.err.println("export object");
            server = new MultipleRegistries();
            proxy =
                (RemoteInterface) UnicastRemoteObject.exportObject(server, 0);

            System.err.println("proxy = " + proxy);

            System.err.println("export registries");
            Registry registryImpl1 = TestLibrary.createRegistryOnUnusedPort();
            int port1 = TestLibrary.getRegistryPort(registryImpl1);
            Registry registryImpl2 = TestLibrary.createRegistryOnUnusedPort();
            int port2 = TestLibrary.getRegistryPort(registryImpl2);
            System.err.println("bind remote object in registries");
            Registry registry1 = LocateRegistry.getRegistry(port1);
            Registry registry2 = LocateRegistry.getRegistry(port2);

            registry1.bind(NAME, proxy);
            registry2.bind(NAME, proxy);

            System.err.println("lookup remote object in registries");

            RemoteInterface remote1 = (RemoteInterface) registry1.lookup(NAME);
            RemoteInterface remote2 = (RemoteInterface) registry2.lookup(NAME);

            System.err.println("invoke methods on remote objects");
            remote1.passObject(remote1);
            remote2.passObject(remote2);

            System.err.println("TEST PASSED");

        } finally {
            if (proxy != null) {
                UnicastRemoteObject.unexportObject(server, true);
            }
        }
    }
 

public static void main(String[] args) throws Exception {

        /*
         * Listen on port...
         */
        ServerSocket serverSocket = new ServerSocket(PORT);

        /*
         * (Attempt RMI call to port in separate thread.)
         */
        Registry registry = LocateRegistry.getRegistry(PORT);
        Connector connector = new Connector(registry);
        Thread t = new Thread(connector);
        t.setDaemon(true);
        t.start();

        /*
         * ...accept one connection from port and send non-JRMP data.
         */
        Socket socket = serverSocket.accept();
        socket.getOutputStream().write("Wrong way".getBytes());
        socket.close();

        /*
         * Wait for call attempt to finish, and analyze result.
         */
        t.join(TIMEOUT);
        synchronized (connector) {
            if (connector.success) {
                throw new RuntimeException(
                    "TEST FAILED: remote call succeeded??");
            }
            if (connector.exception == null) {
                throw new RuntimeException(
                    "TEST FAILED: remote call did not time out");
            } else {
                System.err.println("remote call failed with exception:");
                connector.exception.printStackTrace();
                System.err.println();

                if (connector.exception instanceof MarshalException) {
                    System.err.println(
                        "TEST FAILED: MarshalException thrown, expecting " +
                        "java.rmi.ConnectException or ConnectIOException");
                } else if (connector.exception instanceof ConnectException ||
                           connector.exception instanceof ConnectIOException)
                {
                    System.err.println(
                        "TEST PASSED: java.rmi.ConnectException or " +
                        "ConnectIOException thrown");
                } else {
                    throw new RuntimeException(
                        "TEST FAILED: unexpected Exception thrown",
                        connector.exception);
                }
            }
        }
    }
 

public static void main(String[] args) throws Exception {

        System.setProperty("sun.rmi.transport.tcp.handshakeTimeout",
                           String.valueOf(TIMEOUT / 2));

        /*
         * Listen on port, but never process connections made to it.
         */
        ServerSocket serverSocket = new ServerSocket(PORT);

        /*
         * Attempt RMI call to port in separate thread.
         */
        Registry registry = LocateRegistry.getRegistry(PORT);
        Connector connector = new Connector(registry);
        Thread t = new Thread(connector);
        t.setDaemon(true);
        t.start();

        /*
         * Wait for call attempt to finished, and analyze result.
         */
        t.join(TIMEOUT);
        synchronized (connector) {
            if (connector.success) {
                throw new RuntimeException(
                    "TEST FAILED: remote call succeeded??");
            }
            if (connector.exception == null) {
                throw new RuntimeException(
                    "TEST FAILED: remote call did not time out");
            } else {
                System.err.println("remote call failed with exception:");
                connector.exception.printStackTrace();
                System.err.println();

                if (connector.exception instanceof MarshalException) {
                    System.err.println(
                        "TEST FAILED: MarshalException thrown, expecting " +
                        "java.rmi.ConnectException or ConnectIOException");
                } else if (connector.exception instanceof ConnectException ||
                           connector.exception instanceof ConnectIOException)
                {
                    System.err.println(
                        "TEST PASSED: java.rmi.ConnectException or " +
                        "ConnectIOException thrown");
                } else {
                    throw new RuntimeException(
                        "TEST FAILED: unexpected Exception thrown",
                        connector.exception);
                }
            }
        }
    }