java.rmi.registry.LocateRegistry Java Examples

public synchronized Channel inheritedChannel() throws IOException {
    System.err.println("SP.inheritedChannel");
    if (channel == null) {
        channel = SocketChannel.open();
        Socket socket = channel.socket();
        System.err.println("socket = " + socket);

        /*
         * Notify test that inherited channel was created.
         */
        try {
            System.err.println("notify test...");
            Registry registry =
                LocateRegistry.getRegistry(TestLibrary.INHERITEDCHANNELNOTSERVERSOCKET_REGISTRY_PORT);
            Callback obj = (Callback) registry.lookup("Callback");
            obj.notifyTest();
        } catch (NotBoundException nbe) {
            throw (IOException)
                new IOException("callback object not bound").
                    initCause(nbe);
        }
    }
    return channel;
}
 

/**
 * 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);
		}
	}
}
 

/**
 * 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();
    }
}
 

public synchronized Channel inheritedChannel() throws IOException {
    System.err.println("SP.inheritedChannel");
    if (channel == null) {
        channel = SocketChannel.open();
        Socket socket = channel.socket();
        System.err.println("socket = " + socket);

        /*
         * Notify test that inherited channel was created.
         */
        try {
            System.err.println("notify test...");
            Registry registry =
                LocateRegistry.getRegistry(TestLibrary.INHERITEDCHANNELNOTSERVERSOCKET_REGISTRY_PORT);
            Callback obj = (Callback) registry.lookup("Callback");
            obj.notifyTest();
        } catch (NotBoundException nbe) {
            throw (IOException)
                new IOException("callback object not bound").
                    initCause(nbe);
        }
    }
    return channel;
}
 

/**
 * Locate or create the RMI registry.
 * @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.alwaysCreate) {
		logger.debug("Creating new RMI registry");
		this.created = true;
		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.
			this.created = true;
			return LocateRegistry.createRegistry(registryPort);
		}
	}
}
 

public static void main(String[] args) {
	Nd4j.getMemoryManager().setAutoGcWindow(2000);
	CudaEnvironment.getInstance().getConfiguration()
		.setMaximumDeviceCacheableLength(1024 * 1024 * 1024L)
		.setMaximumDeviceCache(2L * 1024 * 1024 * 1024L)
		.setMaximumHostCacheableLength(1024 * 1024 * 1024L)
		.setMaximumHostCache(8L * 1024 * 1024 * 1024L);
	
	// Register services, bind services in multi ports for better performance
	Registry registry = null;
	for (int i = 0; i < Global.NETWORK_THREADS_NUM; i++) {
		try {
			registry = LocateRegistry.createRegistry(Global.POLICYNET_RMI_PORT + i);
			PolicyNetService policyNet = new PolicyNetService();
			registry.rebind(Global.NAME + "Policy", policyNet);
			
			System.out.println("Bind FancyBingPolicy server on " + (Global.POLICYNET_RMI_PORT + i));
			System.out.println("FancyBingPolicy server started.");
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}
 

private Registry startRegistry()
        throws InterruptedException, RemoteException {
    Registry registry = null;
    try {
        System.out.println("Start rmiregistry on port " + port);
        registry = LocateRegistry
                .createRegistry(Integer.parseInt(port));
    } catch (RemoteException e) {
        if (e.getMessage().contains("Port already in use")) {
            System.out.println("Port already in use. Trying to restart with a new one...");
            Thread.sleep(100);
            return null;
        } else {
            throw e;
        }
    }
    return registry;
}
 

/**
 * Locate or create the RMI registry.
 * @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.alwaysCreate) {
		logger.debug("Creating new RMI registry");
		this.created = true;
		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.
			this.created = true;
			return LocateRegistry.createRegistry(registryPort);
		}
	}
}
 

/**
 * Returns a reference to a working registry on the given host and port, if there is one.
 *
 * @param host The host to check.
 * @param port The port to check.
 * @return A reference to a working registry on the given host and port, if a
 * working one was found there.
 */
public Optional<Registry> lookupRegistry(String host, int port) {
  Registry registry;
  LOG.debug("Checking for working RMI registry on {}:{}", host, port);
  try {
    registry = LocateRegistry.getRegistry(host,
                                          port,
                                          socketFactoryProvider.getClientSocketFactory());
    String[] boundNames = registry.list();
  }
  catch (RemoteException exc) {
    LOG.debug("RMI registry on {}:{} unavailable", host, port);
    return Optional.empty();
  }
  return Optional.of(registry);
}
 

/**
 * 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);
	}
}
 

/**
 * Locate or create the RMI registry for this exporter.
 * @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 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 JMXConnectorServer startServer(int rmiPort) throws Exception {
    System.out.println("DEBUG: Create RMI registry on port " + rmiPort);
    LocateRegistry.createRegistry(rmiPort);

    MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();

    HashMap<String,Object> env = new HashMap<String,Object>();

    JMXServiceURL url =
            new JMXServiceURL("service:jmx:rmi:///jndi/rmi://127.0.0.1:" + rmiPort + "/jmxrmi");
    JMXConnectorServer cs =
            JMXConnectorServerFactory.newJMXConnectorServer(url, env, mbs);

    cs.start();
    System.out.println("DEBUG: Started the RMI connector server");
    return cs;
}
 

/**
 * Helper method to determine if registry has started
 *
 * @param port The port number to check
 * @param msTimeout The amount of milliseconds to spend checking
 */

public static boolean checkIfRegistryRunning(int port, int msTimeout) {
    long stopTime = System.currentTimeMillis() + msTimeout;
    do {
        try {
            Registry r = LocateRegistry.getRegistry(port);
            String[] s = r.list();
            // no exception. We're now happy that registry is running
            return true;
        } catch (RemoteException e) {
            // problem - not ready ? Try again
            try {
                Thread.sleep(500);
            } catch (InterruptedException ie) {
                // not expected
            }
        }
    } while (stopTime > System.currentTimeMillis());
    return false;
}
 

public void run() {

        /*
         * Attempt to create (i.e. export) a registry on the port that
         * has already been bound, and record the result.
         */
        try {
            LocateRegistry.createRegistry(port);
            synchronized (this) {
                exportSucceeded = true;
                notifyAll();
            }
        } catch (Throwable t) {
            synchronized (this) {
                exportException = t;
                notifyAll();
            }
        }
    }
 

/**
 * 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();
    }
}
 

public synchronized Channel inheritedChannel() throws IOException {
    System.err.println("SP.inheritedChannel");
    if (channel == null) {
        channel = SocketChannel.open();
        Socket socket = channel.socket();
        System.err.println("socket = " + socket);

        /*
         * Notify test that inherited channel was created.
         */
        try {
            System.err.println("notify test...");
            Registry registry =
                LocateRegistry.getRegistry(TestLibrary.INHERITEDCHANNELNOTSERVERSOCKET_REGISTRY_PORT);
            Callback obj = (Callback) registry.lookup("Callback");
            obj.notifyTest();
        } catch (NotBoundException nbe) {
            throw (IOException)
                new IOException("callback object not bound").
                    initCause(nbe);
        }
    }
    return channel;
}
 

private JMXConnectorServer startServer(int rmiPort) throws Exception {
    System.out.println("DEBUG: Create RMI registry on port " + rmiPort);
    LocateRegistry.createRegistry(rmiPort);

    MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();

    HashMap<String,Object> env = new HashMap<String,Object>();

    JMXServiceURL url =
            new JMXServiceURL("service:jmx:rmi:///jndi/rmi://127.0.0.1:" + rmiPort + "/jmxrmi");
    JMXConnectorServer cs =
            JMXConnectorServerFactory.newJMXConnectorServer(url, env, mbs);

    cs.start();
    System.out.println("DEBUG: Started the RMI connector server");
    return cs;
}
 

/**
 * Helper method to determine if registry has started
 *
 * @param port The port number to check
 * @param msTimeout The amount of milliseconds to spend checking
 */

public static boolean checkIfRegistryRunning(int port, int msTimeout) {
    long stopTime = System.currentTimeMillis() + msTimeout;
    do {
        try {
            Registry r = LocateRegistry.getRegistry(port);
            String[] s = r.list();
            // no exception. We're now happy that registry is running
            return true;
        } catch (RemoteException e) {
            // problem - not ready ? Try again
            try {
                Thread.sleep(500);
            } catch (InterruptedException ie) {
                // not expected
            }
        }
    } while (stopTime > System.currentTimeMillis());
    return false;
}
 

public static void main(String[] args) {
    try {
        int registryPort = Integer.parseInt(System.getProperty("rmi.registry.port"));
        Registry registry =
            LocateRegistry.getRegistry("", registryPort);
        ShutdownMonitor monitor = (ShutdownMonitor)
            registry.lookup(KeepAliveDuringCall.BINDING);
        System.err.println("(ShutdownImpl) retrieved shutdown monitor");

        impl = new ShutdownImpl(monitor);
        Shutdown stub = (Shutdown) UnicastRemoteObject.exportObject(impl);
        System.err.println("(ShutdownImpl) exported shutdown object");

        monitor.submitShutdown(stub);
        System.err.println("(ShutdownImpl) submitted shutdown object");

    } catch (Exception e) {
        System.err.println("(ShutdownImpl) TEST SUBPROCESS FAILURE:");
        e.printStackTrace();
    }
}
 

public void run() {

        /*
         * Attempt to create (i.e. export) a registry on the port that
         * has already been bound, and record the result.
         */
        try {
            LocateRegistry.createRegistry(port);
            synchronized (this) {
                exportSucceeded = true;
                notifyAll();
            }
        } catch (Throwable t) {
            synchronized (this) {
                exportException = t;
                notifyAll();
            }
        }
    }
 

/**
 * Helper method to determine if registry has started
 *
 * @param port The port number to check
 * @param msTimeout The amount of milliseconds to spend checking
 */

public static boolean checkIfRegistryRunning(int port, int msTimeout) {
    long stopTime = System.currentTimeMillis() + msTimeout;
    do {
        try {
            Registry r = LocateRegistry.getRegistry(port);
            String[] s = r.list();
            // no exception. We're now happy that registry is running
            return true;
        } catch (RemoteException e) {
            // problem - not ready ? Try again
            try {
                Thread.sleep(500);
            } catch (InterruptedException ie) {
                // not expected
            }
        }
    } while (stopTime > System.currentTimeMillis());
    return false;
}
 

public void run() {

        /*
         * Attempt to create (i.e. export) a registry on the port that
         * has already been bound, and record the result.
         */
        try {
            LocateRegistry.createRegistry(port);
            synchronized (this) {
                exportSucceeded = true;
                notifyAll();
            }
        } catch (Throwable t) {
            synchronized (this) {
                exportException = t;
                notifyAll();
            }
        }
    }
 

public static void main(String[] args) {
    try {
        int registryPort = Integer.parseInt(System.getProperty("rmi.registry.port"));
        Registry registry =
            LocateRegistry.getRegistry("", registryPort);
        ShutdownMonitor monitor = (ShutdownMonitor)
            registry.lookup(KeepAliveDuringCall.BINDING);
        System.err.println("(ShutdownImpl) retrieved shutdown monitor");

        impl = new ShutdownImpl(monitor);
        Shutdown stub = (Shutdown) UnicastRemoteObject.exportObject(impl);
        System.err.println("(ShutdownImpl) exported shutdown object");

        monitor.submitShutdown(stub);
        System.err.println("(ShutdownImpl) submitted shutdown object");

    } catch (Exception e) {
        System.err.println("(ShutdownImpl) TEST SUBPROCESS FAILURE:");
        e.printStackTrace();
    }
}
 

public synchronized Channel inheritedChannel() throws IOException {
    System.err.println("SP.inheritedChannel");
    if (channel == null) {
        channel = SocketChannel.open();
        Socket socket = channel.socket();
        System.err.println("socket = " + socket);

        /*
         * Notify test that inherited channel was created.
         */
        try {
            System.err.println("notify test...");
            Registry registry =
                LocateRegistry.getRegistry(TestLibrary.INHERITEDCHANNELNOTSERVERSOCKET_REGISTRY_PORT);
            Callback obj = (Callback) registry.lookup("Callback");
            obj.notifyTest();
        } catch (NotBoundException nbe) {
            throw (IOException)
                new IOException("callback object not bound").
                    initCause(nbe);
        }
    }
    return channel;
}
 

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 synchronized Channel inheritedChannel() throws IOException {
    System.err.println("RmidSelectorProvider.inheritedChannel");
    if (channel == null) {
        /*
         * Create server socket channel and bind server socket.
         */
        channel = ServerSocketChannel.open();
        ServerSocket serverSocket = channel.socket();
        serverSocket.bind(
             new InetSocketAddress(InetAddress.getLocalHost(),
             TestLibrary.RMIDVIAINHERITEDCHANNEL_ACTIVATION_PORT));
        System.err.println("serverSocket = " + serverSocket);

        /*
         * Notify test that inherited channel was created.
         */
        try {
            System.err.println("notify test...");
            Registry registry =
                LocateRegistry.getRegistry(TestLibrary.RMIDVIAINHERITEDCHANNEL_REGISTRY_PORT);
            Callback obj = (Callback) registry.lookup("Callback");
            obj.notifyTest();
        } catch (NotBoundException nbe) {
            throw (IOException)
                new IOException("callback object not bound").
                    initCause(nbe);
        }
    }
    return channel;
}
 

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 synchronized Channel inheritedChannel() throws IOException {
    System.err.println("RmidSelectorProvider.inheritedChannel");
    if (channel == null) {
        /*
         * Create server socket channel and bind server socket.
         */
        channel = ServerSocketChannel.open();
        ServerSocket serverSocket = channel.socket();
        serverSocket.bind(
             new InetSocketAddress(InetAddress.getLocalHost(),
             TestLibrary.RMIDVIAINHERITEDCHANNEL_ACTIVATION_PORT));
        System.err.println("serverSocket = " + serverSocket);

        /*
         * Notify test that inherited channel was created.
         */
        try {
            System.err.println("notify test...");
            Registry registry =
                LocateRegistry.getRegistry(TestLibrary.RMIDVIAINHERITEDCHANNEL_REGISTRY_PORT);
            Callback obj = (Callback) registry.lookup("Callback");
            obj.notifyTest();
        } catch (NotBoundException nbe) {
            throw (IOException)
                new IOException("callback object not bound").
                    initCause(nbe);
        }
    }
    return channel;
}