Examples with ServerSocket java.net.ServerSocket used on opensource projects

Example 1 with ServerSocket

use of java.net.ServerSocket in project camel by apache.

the class MllpTcpServerConsumer method doStart.

@Override
protected void doStart() throws Exception {
    log.debug("doStart() - creating acceptor thread");
    ServerSocket serverSocket = new ServerSocket();
    if (null != endpoint.receiveBufferSize) {
        serverSocket.setReceiveBufferSize(endpoint.receiveBufferSize);
    }
    serverSocket.setReuseAddress(endpoint.reuseAddress);
    // Accept Timeout
    serverSocket.setSoTimeout(endpoint.acceptTimeout);
    InetSocketAddress socketAddress;
    if (null == endpoint.getHostname()) {
        socketAddress = new InetSocketAddress(endpoint.getPort());
    } else {
        socketAddress = new InetSocketAddress(endpoint.getHostname(), endpoint.getPort());
    }
    long startTicks = System.currentTimeMillis();
    do {
        try {
            serverSocket.bind(socketAddress, endpoint.backlog);
        } catch (BindException bindException) {
            if (System.currentTimeMillis() > startTicks + endpoint.getBindTimeout()) {
                log.error("Failed to bind to address {} within timeout {}", socketAddress, endpoint.getBindTimeout());
                throw bindException;
            } else {
                log.warn("Failed to bind to address {} - retrying in {} milliseconds", socketAddress, endpoint.getBindRetryInterval());
                Thread.sleep(endpoint.getBindRetryInterval());
            }
        }
    } while (!serverSocket.isBound());
    serverSocketThread = new ServerSocketThread(serverSocket);
    serverSocketThread.start();
    super.doStart();
}

Example 2 with ServerSocket

use of java.net.ServerSocket in project camel by apache.

the class MllpTcpServerConsumerBindTimeoutTest method testReceiveSingleMessage.

@Test
public void testReceiveSingleMessage() throws Exception {
    result.expectedMessageCount(1);
    Thread tmpThread = new Thread() {

        public void run() {
            try {
                ServerSocket tmpSocket = new ServerSocket(mllpClient.getMllpPort());
                Thread.sleep(15000);
                tmpSocket.close();
            } catch (Exception ex) {
                throw new RuntimeException("Exception caught in dummy listener", ex);
            }
        }
    };
    tmpThread.start();
    context.start();
    mllpClient.connect();
    mllpClient.sendMessageAndWaitForAcknowledgement(generateMessage(), 10000);
    assertMockEndpointsSatisfied(10, TimeUnit.SECONDS);
}

Example 3 with ServerSocket

use of java.net.ServerSocket in project camel by apache.

the class MllpSocketUtilSocketTest method setUp.

@Before
public void setUp() throws Exception {
    serverSocket = new ServerSocket(0);
    socket = new Socket();
}

Example 4 with ServerSocket

use of java.net.ServerSocket in project flink by apache.

the class ZooKeeperLeaderRetrievalTest method testConnectingAddressRetrievalWithDelayedLeaderElection.

/**
	 * Tests that LeaderRetrievalUtils.findConnectingAdress finds the correct connecting address
	 * in case of an old leader address in ZooKeeper and a subsequent election of a new leader.
	 * The findConnectingAddress should block until the new leader has been elected and his
	 * address has been written to ZooKeeper.
	 */
@Test
public void testConnectingAddressRetrievalWithDelayedLeaderElection() throws Exception {
    FiniteDuration timeout = new FiniteDuration(1, TimeUnit.MINUTES);
    Configuration config = new Configuration();
    long sleepingTime = 1000;
    config.setString(HighAvailabilityOptions.HA_MODE, "zookeeper");
    config.setString(HighAvailabilityOptions.HA_ZOOKEEPER_QUORUM, testingServer.getConnectString());
    LeaderElectionService leaderElectionService = null;
    LeaderElectionService faultyLeaderElectionService;
    ServerSocket serverSocket;
    InetAddress localHost;
    Thread thread;
    CuratorFramework[] client = new CuratorFramework[2];
    try {
        client[0] = ZooKeeperUtils.startCuratorFramework(config);
        client[1] = ZooKeeperUtils.startCuratorFramework(config);
        String wrongHostPort = NetUtils.unresolvedHostAndPortToNormalizedString("1.1.1.1", 1234);
        String wrongAddress = JobManager.getRemoteJobManagerAkkaURL(AkkaUtils.getAkkaProtocol(config), wrongHostPort, Option.<String>empty());
        try {
            localHost = InetAddress.getLocalHost();
            serverSocket = new ServerSocket(0, 50, localHost);
        } catch (UnknownHostException e) {
            // may happen if disconnected. skip test.
            System.err.println("Skipping 'testNetworkInterfaceSelection' test.");
            return;
        } catch (IOException e) {
            // may happen in certain test setups, skip test.
            System.err.println("Skipping 'testNetworkInterfaceSelection' test.");
            return;
        }
        InetSocketAddress correctInetSocketAddress = new InetSocketAddress(localHost, serverSocket.getLocalPort());
        String hostPort = NetUtils.unresolvedHostAndPortToNormalizedString(localHost.getHostName(), correctInetSocketAddress.getPort());
        String correctAddress = JobManager.getRemoteJobManagerAkkaURL(AkkaUtils.getAkkaProtocol(config), hostPort, Option.<String>empty());
        faultyLeaderElectionService = ZooKeeperUtils.createLeaderElectionService(client[0], config);
        TestingContender wrongLeaderAddressContender = new TestingContender(wrongAddress, faultyLeaderElectionService);
        faultyLeaderElectionService.start(wrongLeaderAddressContender);
        FindConnectingAddress findConnectingAddress = new FindConnectingAddress(config, timeout);
        thread = new Thread(findConnectingAddress);
        thread.start();
        leaderElectionService = ZooKeeperUtils.createLeaderElectionService(client[1], config);
        TestingContender correctLeaderAddressContender = new TestingContender(correctAddress, leaderElectionService);
        Thread.sleep(sleepingTime);
        faultyLeaderElectionService.stop();
        leaderElectionService.start(correctLeaderAddressContender);
        thread.join();
        InetAddress result = findConnectingAddress.getInetAddress();
        // check that we can connect to the localHost
        Socket socket = new Socket();
        try {
            // port 0 = let the OS choose the port
            SocketAddress bindP = new InetSocketAddress(result, 0);
            // machine
            socket.bind(bindP);
            socket.connect(correctInetSocketAddress, 1000);
        } finally {
            socket.close();
        }
    } finally {
        if (leaderElectionService != null) {
            leaderElectionService.stop();
        }
        if (client[0] != null) {
            client[0].close();
        }
        if (client[1] != null) {
            client[1].close();
        }
    }
}

Example 5 with ServerSocket

use of java.net.ServerSocket in project flink by apache.

the class IPv6HostnamesITCase method getLocalIPv6Address.

private Inet6Address getLocalIPv6Address() {
    try {
        Enumeration<NetworkInterface> e = NetworkInterface.getNetworkInterfaces();
        while (e.hasMoreElements()) {
            NetworkInterface netInterface = e.nextElement();
            // for each address of the network interface
            Enumeration<InetAddress> ee = netInterface.getInetAddresses();
            while (ee.hasMoreElements()) {
                InetAddress addr = ee.nextElement();
                if (addr instanceof Inet6Address && (!addr.isLoopbackAddress()) && (!addr.isAnyLocalAddress())) {
                    // see if it is possible to bind to the address
                    InetSocketAddress socketAddress = new InetSocketAddress(addr, 0);
                    try {
                        log.info("Considering address " + addr);
                        // test whether we can bind a socket to that address
                        log.info("Testing whether sockets can bind to " + addr);
                        ServerSocket sock = new ServerSocket();
                        sock.bind(socketAddress);
                        sock.close();
                        // test whether Akka's netty can bind to the address
                        log.info("Testing whether Akka can use " + addr);
                        int port = NetUtils.getAvailablePort();
                        ActorSystem as = AkkaUtils.createActorSystem(new Configuration(), new Some<scala.Tuple2<String, Object>>(new scala.Tuple2<String, Object>(addr.getHostAddress(), port)));
                        as.shutdown();
                        log.info("Using address " + addr);
                        return (Inet6Address) addr;
                    } catch (IOException ignored) {
                    // fall through the loop
                    }
                }
            }
        }
        return null;
    } catch (Exception e) {
        return null;
    }
}