Example usage for java.net ServerSocket setReuseAddress

Introduction

In this page you can find the example usage for java.net ServerSocket setReuseAddress.

Prototype

public void setReuseAddress(boolean on) throws SocketException 

Source Link

Document

Enable/disable the SocketOptions#SO_REUSEADDR SO_REUSEADDR socket option.

Usage

From source file:org.structr.util.StructrLicenseVerifier.java

private void run() {

    try {/*from   ww w.j  a  v a  2 s  .  c  o m*/

        logger.info("Listening on port {}", StructrLicenseManager.ServerPort);

        final ServerSocket serverSocket = new ServerSocket(StructrLicenseManager.ServerPort);

        serverSocket.setReuseAddress(true);

        // validation loop
        while (true) {

            try (final Socket socket = serverSocket.accept()) {

                logger.info("##### New connection from {}", socket.getInetAddress().getHostAddress());

                final InputStream is = socket.getInputStream();
                final int bufSize = 4096;

                socket.setSoTimeout(2000);

                // decrypt AES stream key using RSA block cipher
                final byte[] sessionKey = blockCipher.doFinal(IOUtils.readFully(is, 256));
                final byte[] ivSpec = blockCipher.doFinal(IOUtils.readFully(is, 256));
                final byte[] buf = new byte[bufSize];
                int count = 0;

                // initialize cipher using stream key
                streamCipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(sessionKey, "AES"),
                        new IvParameterSpec(ivSpec));

                // we want to be able to control the number of bytes AND the timeout
                // of the underlying socket, so that we read the available amount of
                // data until the socket times out or we have read all the data.
                try {

                    count = is.read(buf, 0, bufSize);

                } catch (IOException ioex) {
                }

                final byte[] decrypted = streamCipher.doFinal(buf, 0, count);
                final String data = new String(decrypted, "utf-8");

                // transform decrypted data into a Map<String, String>
                final List<Pair> pairs = split(data).stream().map(StructrLicenseVerifier::keyValue)
                        .collect(Collectors.toList());
                final Map<String, String> map = pairs.stream().filter(Objects::nonNull)
                        .collect(Collectors.toMap(Pair::getLeft, Pair::getRight));

                // validate data against customer database
                if (isValid(map)) {

                    // send signatur of name field back to client
                    final String name = (String) map.get(StructrLicenseManager.NameKey);
                    final byte[] response = name.getBytes("utf-8");

                    // respond with the signature of the data sent to us
                    socket.getOutputStream().write(sign(response));
                    socket.getOutputStream().flush();

                } else {

                    logger.info("License verification failed.");
                }

                socket.getOutputStream().close();

            } catch (Throwable t) {
                logger.warn("Unable to verify license: {}", t.getMessage());
            }
        }

    } catch (Throwable t) {
        logger.warn("Unable to verify license: {}", t.getMessage());
    }
}

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From source file:com.adeptj.runtime.server.Server.java

private boolean isPortAvailable(int port) {
    boolean portAvailable = false;
    ServerSocket socket = null;
    try (ServerSocketChannel socketChannel = ServerSocketChannel.open()) {
        socket = socketChannel.socket();
        socket.setReuseAddress(true);
        socket.bind(new InetSocketAddress(port));
        portAvailable = true;/*from   www  . j a  v a  2  s.c  o  m*/
    } catch (BindException ex) {
        LOGGER.error("BindException while acquiring port: [{}], cause:", port, ex);
    } catch (IOException ex) {
        LOGGER.error("IOException while acquiring port: [{}], cause:", port, ex);
    } finally {
        if (socket != null) {
            try {
                socket.close();
            } catch (IOException ex) {
                LOGGER.error("IOException while closing socket!!", ex);
            }
        }
    }
    return portAvailable;
}

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From source file:org.vaadin.testbenchsauce.BaseTestBenchTestCase.java

private static int findFreePort() {
    ServerSocket socket = null;
    try {//  w w w .  j a  v  a  2 s  .  c o  m
        socket = new ServerSocket(0);
        socket.setReuseAddress(true);
        int port = socket.getLocalPort();
        try {
            socket.close();
        } catch (IOException e) {
            // Ignore IOException on close()
        }
        return port;
    } catch (IOException ignored) {
    } finally {
        if (socket != null) {
            try {
                socket.close();
            } catch (IOException ignored) {
            }
        }
    }
    throw new IllegalStateException("Could not find a free TCP/IP port to start embedded Jetty HTTP Server on");
}

---

From source file:org.apache.camel.itest.http.HttpTestServer.java

/**
 * Starts this test server./*w ww . j  a v  a  2 s  .  co  m*/
 */
public void start() throws Exception {
    if (servicedSocket != null) {
        throw new IllegalStateException(this.toString() + " already running");
    }
    ServerSocket ssock;
    if (sslcontext != null) {
        SSLServerSocketFactory sf = sslcontext.getServerSocketFactory();
        ssock = sf.createServerSocket();
    } else {
        ssock = new ServerSocket();
    }

    ssock.setReuseAddress(true); // probably pointless for port '0'
    ssock.bind(TEST_SERVER_ADDR);
    servicedSocket = ssock;

    listenerThread = new ListenerThread();
    listenerThread.setDaemon(false);
    listenerThread.start();
}

---

From source file:org.apache.hadoop.hdfs.fsshellservice.FsShellServiceImpl.java

private void initThriftServer(int port, int maxQueue) {
    // Setup the Thrift server
    LOG.info("Setting up Thrift server listening port " + port);
    TProtocolFactory protocolFactory = new TBinaryProtocol.Factory();
    TTransportFactory transportFactory = new TFramedTransport.Factory();
    TServerTransport serverTransport;/*  www.  j a va 2 s  . c  om*/
    FsShellService.Processor<FsShellService.Iface> processor = new FsShellService.Processor<FsShellService.Iface>(
            this);

    ServerSocket serverSocket_;
    try {
        // Make server socket. Use loop-back address to only serve requests
        // from local clients, in order to prevent ambiguity for commands
        // of copyFromLocal() and copyToLocal()
        serverSocket_ = new ServerSocket(port, maxQueue, InetAddress.getAllByName(null)[0]);
        // Prevent 2MSL delay problem on server restarts
        serverSocket_.setReuseAddress(true);
    } catch (IOException ioe) {
        LOG.error("Could not create ServerSocket on local address ", ioe);
        return;
    }
    serverTransport = new TServerSocket(serverSocket_, clientTimeout);
    TThreadPoolServer.Args serverArgs = new TThreadPoolServer.Args(serverTransport);
    serverArgs.processor(processor).transportFactory(transportFactory).protocolFactory(protocolFactory);
    tserver = new TThreadPoolServer(serverArgs);
}

---

From source file:org.apache.http.localserver.LocalTestServer.java

/**
 * Starts this test server.//from  w w w.  j  a  v a2  s .c  om
 * Use {@link #getServicePort getServicePort}
 * to obtain the port number afterwards.
 */
public void start() throws Exception {
    if (servicedSocket != null)
        throw new IllegalStateException(this.toString() + " already running");

    ServerSocket ssock;
    if (sslcontext != null) {
        SSLServerSocketFactory sf = sslcontext.getServerSocketFactory();
        ssock = sf.createServerSocket();
    } else {
        ssock = new ServerSocket();
    }

    ssock.setReuseAddress(true); // probably pointless for port '0'
    ssock.bind(TEST_SERVER_ADDR);
    servicedSocket = ssock;

    listenerThread = new Thread(new RequestListener());
    listenerThread.setDaemon(false);
    listenerThread.start();
}

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From source file:de.kapsi.net.daap.nio.DaapServerNIO.java

/**
 * Binds this server to the SocketAddress supplied by DaapConfig
 * /*from  w w w . j a  va2  s .  co m*/
 * @throws IOException
 */
public void bind() throws IOException {

    SocketAddress bindAddr = config.getInetSocketAddress();
    int backlog = config.getBacklog();

    try {

        ssc = ServerSocketChannel.open();
        ServerSocket socket = ssc.socket();

        // BugID: 4546610
        // On Win2k, Mac OS X, XYZ it is possible to bind
        // the same address without rising a SocketException
        // (the Documentation lies)
        socket.setReuseAddress(false);

        try {
            socket.bind(bindAddr, backlog);
        } catch (SocketException err) {
            throw new BindException(err.getMessage());
        }

        ssc.configureBlocking(false);

        if (LOG.isInfoEnabled()) {
            LOG.info("DaapServerNIO bound to " + bindAddr);
        }

        streams = new HashSet();
        connections = new HashSet();
        sessionIds = new HashSet();

    } catch (IOException err) {
        close();
        throw err;
    }
}

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From source file:com.addthis.hydra.task.output.tree.TreeMapper.java

private void _init(TaskRunConfig runConfig) throws Exception {
    config = runConfig;/*ww w.jav  a  2 s.c o m*/
    mapstats = new TreeMapperStats(log);

    resolve();

    if (nodeCache != null)
        TreeCommonParameters.setDefaultCleanQueueSize(nodeCache);
    if (trashInterval != null)
        TreeCommonParameters.setDefaultTrashInterval(trashInterval);
    if (trashTimeLimit != null)
        TreeCommonParameters.setDefaultTrashTimeLimit(trashTimeLimit);
    if (storage != null) {
        if (storage.maxCacheSize != null)
            TreeCommonParameters.setDefaultMaxCacheSize(storage.maxCacheSize);
        if (storage.maxCacheMem != null)
            TreeCommonParameters.setDefaultMaxCacheMem(storage.maxCacheMem);
        if (storage.maxPageSize != null)
            TreeCommonParameters.setDefaultMaxPageSize(storage.maxCacheSize);
        if (storage.maxPageMem != null)
            TreeCommonParameters.setDefaultMaxPageMem(storage.maxPageMem);
        if (storage.memSample != null)
            TreeCommonParameters.setDefaultMemSample(storage.memSample);
    }

    if (Strings.isEmpty(localhost)) {
        localhost = InetAddress.getLocalHost().getHostAddress();
    }
    log.info("[init] java=" + System.getProperty("java.vm.version") + " query=" + enableQuery + " http="
            + enableHttp + " jmx=" + enableJmx + " live=" + live);
    log.info("[init] host=" + localhost + " port=" + port + " target=" + root + " job=" + config.jobId);

    Path treePath = Paths.get(runConfig.dir, "data");
    tree = new ConcurrentTree(Files.initDirectory(treePath.toFile()));
    bench = new Bench(EnumSet.allOf(BENCH.class), 1000);

    if (enableHttp) {
        jetty = new Server(port > 0 ? port++ : 0);
        jetty.start();
        int httpPort = jetty.getConnectors()[0].getLocalPort();
        log.info("[init.http] http://" + localhost + ":" + httpPort + "/");
        Files.write(new File("job.port"), Bytes.toBytes(Integer.toString(httpPort)), false);
    }

    if (enableJmx) {
        int queryPort = 0;
        jmxname = new ObjectName("com.addthis.hydra:type=Hydra,node=" + queryPort);
        ManagementFactory.getPlatformMBeanServer().registerMBean(mapstats, jmxname);
        ServerSocket ss = new ServerSocket();
        ss.setReuseAddress(true);
        ss.bind(port > 0 ? new InetSocketAddress(port++) : null);
        int jmxport = ss.getLocalPort();
        ss.close();
        if (jmxport == -1) {
            log.warn("[init.jmx] failed to get a port");
        } else {
            try {
                jmxremote = new MBeanRemotingSupport(jmxport);
                jmxremote.start();
                log.info("[init.jmx] port=" + jmxport);
            } catch (Exception e) {
                log.warn("[init.jmx] err=" + e);
            }
        }
    }

    if (config.jobId != null && live && livePort > -1) {
        QueryEngine liveQueryEngine = new QueryEngine(tree);
        connectToMesh(treePath.toFile(), runConfig.jobId, liveQueryEngine);
    }

    startTime = System.currentTimeMillis();

    if (pre != null) {
        log.warn("pre-chain: " + pre);
        processBundle(new KVBundle(), pre);
    }
}

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From source file:org.nuxeo.launcher.config.ConfigurationGenerator.java

/**
 * Checks if port is available on given address.
 *
 * @param port port to check for availability
 * @throws ConfigurationException Throws an exception if address is unavailable.
 * @since 5.5/* w  ww . ja v a 2 s.  co  m*/
 */
public static void checkPortAvailable(InetAddress address, int port) throws ConfigurationException {
    if ((port == 0) || (port == -1)) {
        log.warn("Port is set to " + Integer.toString(port)
                + " - assuming it is disabled - skipping availability check");
        return;
    }
    if (port < MIN_PORT || port > MAX_PORT) {
        throw new IllegalArgumentException("Invalid port: " + port);
    }
    ServerSocket socketTCP = null;
    // DatagramSocket socketUDP = null;
    try {
        log.debug("Checking availability of port " + port + " on address " + address);
        socketTCP = new ServerSocket(port, 0, address);
        socketTCP.setReuseAddress(true);
        // socketUDP = new DatagramSocket(port, address);
        // socketUDP.setReuseAddress(true);
        // return true;
    } catch (IOException e) {
        throw new ConfigurationException(e.getMessage() + ": " + address + ":" + port, e);
    } finally {
        // if (socketUDP != null) {
        // socketUDP.close();
        // }
        if (socketTCP != null) {
            try {
                socketTCP.close();
            } catch (IOException e) {
                // Do not throw
            }
        }
    }
}

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From source file:org.apache.geode.internal.net.SocketCreator.java

private ServerSocket createServerSocket(int nport, int backlog, InetAddress bindAddr, int socketBufferSize,
        boolean sslConnection) throws IOException {
    printConfig();/* w w w . j  a  v a 2  s .c o m*/
    if (sslConnection) {
        if (this.sslContext == null) {
            throw new GemFireConfigException("SSL not configured correctly, Please look at previous error");
        }
        ServerSocketFactory ssf = this.sslContext.getServerSocketFactory();
        SSLServerSocket serverSocket = (SSLServerSocket) ssf.createServerSocket();
        serverSocket.setReuseAddress(true);
        // If necessary, set the receive buffer size before binding the socket so
        // that large buffers will be allocated on accepted sockets (see
        // java.net.ServerSocket.setReceiverBufferSize javadocs)
        if (socketBufferSize != -1) {
            serverSocket.setReceiveBufferSize(socketBufferSize);
        }
        serverSocket.bind(new InetSocketAddress(bindAddr, nport), backlog);
        finishServerSocket(serverSocket);
        return serverSocket;
    } else {
        // log.info("Opening server socket on " + nport, new Exception("SocketCreation"));
        ServerSocket result = new ServerSocket();
        result.setReuseAddress(true);
        // If necessary, set the receive buffer size before binding the socket so
        // that large buffers will be allocated on accepted sockets (see
        // java.net.ServerSocket.setReceiverBufferSize javadocs)
        if (socketBufferSize != -1) {
            result.setReceiveBufferSize(socketBufferSize);
        }
        try {
            result.bind(new InetSocketAddress(bindAddr, nport), backlog);
        } catch (BindException e) {
            BindException throwMe = new BindException(
                    LocalizedStrings.SocketCreator_FAILED_TO_CREATE_SERVER_SOCKET_ON_0_1
                            .toLocalizedString(new Object[] { bindAddr, Integer.valueOf(nport) }));
            throwMe.initCause(e);
            throw throwMe;
        }
        return result;
    }
}

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