Example usage for java.net ServerSocket ServerSocket

Introduction

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

Prototype

public ServerSocket(int port, int backlog, InetAddress bindAddr) throws IOException 

Source Link

Document

Create a server with the specified port, listen backlog, and local IP address to bind to.

Usage

From source file:com.lithium.flow.vault.AgentServer.java

public AgentServer(@Nonnull Config config) throws IOException {
    checkNotNull(config);//from w ww  .ja va2  s.c  om

    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    IOUtils.copy(System.in, baos);
    byte[] bytes = baos.toByteArray();

    ServerSocket server = new ServerSocket(config.getInt("agent.port"), -1, InetAddress.getByName(null));
    long endTime = System.currentTimeMillis() + config.getTime("agent.maximumTime", "1d");
    long inactiveTime = config.getTime("agent.inactiveTime", "8h");
    AtomicLong lastTime = new AtomicLong(System.currentTimeMillis());

    new LoopThread(() -> {
        try {
            Socket socket = server.accept();
            log.info("accepted connection: {}", socket);
            try (OutputStream out = socket.getOutputStream()) {
                IOUtils.copy(new ByteArrayInputStream(bytes), out);
            }
        } catch (IOException e) {
            //
        }

        lastTime.set(System.currentTimeMillis());
    });

    new LoopThread(1000, () -> {
        long time = System.currentTimeMillis();
        if (time > endTime) {
            log.info("maximum time reached");
            System.exit(0);
        }

        if (time > lastTime.get() + inactiveTime) {
            log.info("inactive time reached");
            System.exit(0);
        }
    });

    log.info("started agent on port {}", server.getLocalPort());
    Sleep.forever();
}

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From source file:org.apache.flink.runtime.taskmanager.TestManagerStartupTest.java

/**
 * Tests that the TaskManager fails synchronously when the actor system port
 * is in use.//  w  w  w  . j  a  v  a2 s.c o m
 */
@Test
public void testStartupWhenTaskmanagerActorPortIsUsed() {
    ServerSocket blocker = null;
    try {
        final String localHostName = "localhost";
        final InetAddress localAddress = InetAddress.getByName(localHostName);

        // block some port
        blocker = new ServerSocket(0, 50, localAddress);
        final int port = blocker.getLocalPort();

        try {
            TaskManager.runTaskManager(localHostName, port, new Configuration(), StreamingMode.BATCH_ONLY,
                    TaskManager.class);
            fail("This should fail with an IOException");
        } catch (IOException e) {
            // expected. validate the error message
            assertNotNull(e.getMessage());
            assertTrue(e.getMessage().contains("Address already in use"));
        }

    } catch (Exception e) {
        e.printStackTrace();
        fail(e.getMessage());
    } finally {
        if (blocker != null) {
            try {
                blocker.close();
            } catch (IOException e) {
                // no need to log here
            }
        }
    }
}

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From source file:org.apache.axis2.transport.tcp.TCPServer.java

public void startServer() throws IOException {
    if (serverSocket == null) {
        if (endpoint.getHost() != null) {
            InetAddress address = InetAddress.getByName(endpoint.getHost());
            serverSocket = new ServerSocket(endpoint.getPort(), endpoint.getBacklog(), address);
        } else {//  w  w w .  j a  v  a  2  s . c o m
            serverSocket = new ServerSocket(endpoint.getPort(), endpoint.getBacklog());
        }
    }
    started = true;
    endpoint.getListener().getConfigurationContext().getThreadPool().execute(this);
    log.info("TCP server started on port : " + endpoint.getPort());
}

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From source file:com.predic8.membrane.core.transport.http.HttpEndpointListener.java

public HttpEndpointListener(String ip, int port, HttpTransport transport, SSLProvider sslProvider)
        throws IOException {
    this.transport = transport;
    this.sslProvider = sslProvider;

    try {/*from   w  w  w  .j  a v a2 s.co m*/
        if (sslProvider != null)
            serverSocket = sslProvider.createServerSocket(port, 50,
                    ip != null ? InetAddress.getByName(ip) : null);
        else
            serverSocket = new ServerSocket(port, 50, ip != null ? InetAddress.getByName(ip) : null);

        setName("Connection Acceptor " + (ip != null ? ip + ":" : ":") + port);
        log.debug("listening at port " + port + (ip != null ? " ip " + ip : ""));
    } catch (BindException e) {
        throw new PortOccupiedException(port);
    }
}

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From source file:com.sshtools.j2ssh.agent.SshAgentForwardingListener.java

SshAgentForwardingListener(String sessionId, ConnectionProtocol connection) {
    log.info("Forwarding agent started");
    this.sessionId = sessionId;
    this.connection = connection;
    port = selectPort();//  ww w. j ava 2 s. com
    location = "localhost:" + String.valueOf(port);
    thread = new Thread(new Runnable() {
        public void run() {
            state.setValue(StartStopState.STARTED);

            try {
                server = new ServerSocket(port, 5, InetAddress.getByName("localhost"));

                //server.bind(new InetSocketAddress("localhost", port));
                Socket socket;

                while ((state.getValue() == StartStopState.STARTED) && ((socket = server.accept()) != null)) {
                    AgentSocketChannel channel = new AgentSocketChannel(true);
                    channel.bindSocket(socket);

                    if (!SshAgentForwardingListener.this.connection.openChannel(channel)) {
                        log.warn("Failed to open agent forwarding channel");
                    }
                }
            } catch (Exception e) {
                if (state.getValue() == StartStopState.STARTED) {
                    log.warn("Forwarding agent socket failed", e);
                }
            }

            state.setValue(StartStopState.STOPPED);
        }
    });
}

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From source file:com.mobius.software.mqtt.performance.controller.net.ClientBootstrap.java

public static boolean available(String host, int port) {
    try (ServerSocket ss = new ServerSocket(port, 50, InetAddress.getByName(host))) {
        ss.setReuseAddress(true);//from   w ww . java  2  s. c  om
        return true;
    } catch (IOException e) {
    }

    return false;
}

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From source file:org.npr.android.test.HttpServer.java

/**
 * Prepare the server to start.//  ww  w . ja  va 2s.c o m
 * 
 * This only needs to be called once per instance. Once initialized, the
 * server can be started and stopped as needed.
 */
public void init() {
    try {
        socket = new ServerSocket(port, 0, InetAddress.getByAddress(new byte[] { 127, 0, 0, 1 }));
        socket.setSoTimeout(5000);
        port = socket.getLocalPort();
        Log.d(TAG, "Server stated at " + socket.getInetAddress().getHostAddress() + ":" + port);
    } catch (UnknownHostException e) {
        Log.e(TAG, "Error initializing server", e);
    } catch (IOException e) {
        Log.e(TAG, "Error initializing server", e);
    }
}

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From source file:org.apache.flink.runtime.taskmanager.TaskManagerStartupTest.java

/**
 * Tests that the TaskManager fails synchronously when the actor system port
 * is in use.//  w w w . ja  v a  2s.  c o m
 * 
 * @throws Throwable
 */
@Test(expected = BindException.class)
public void testStartupWhenTaskmanagerActorPortIsUsed() throws BindException {
    ServerSocket blocker = null;
    try {
        final String localHostName = "localhost";
        final InetAddress localBindAddress = InetAddress.getByName(NetUtils.getWildcardIPAddress());

        // block some port
        blocker = new ServerSocket(0, 50, localBindAddress);
        final int port = blocker.getLocalPort();

        TaskManager.runTaskManager(localHostName, ResourceID.generate(), port, new Configuration(),
                TaskManager.class);
        fail("This should fail with an IOException");

    } catch (IOException e) {
        // expected. validate the error message
        List<Throwable> causes = StartupUtils.getExceptionCauses(e, new ArrayList<Throwable>());
        for (Throwable cause : causes) {
            if (cause instanceof BindException) {
                throw (BindException) cause;
            }
        }
        fail("This should fail with an exception caused by BindException");
    } catch (Exception e) {
        e.printStackTrace();
        fail(e.getMessage());
    } finally {
        if (blocker != null) {
            try {
                blocker.close();
            } catch (IOException e) {
                // no need to log here
            }
        }
    }
}

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From source file:com.sshtools.j2ssh.agent.SshAgentSocketListener.java

/**
 * Creates a new SshAgentSocketListener object.
 *
 * @param location the location of the listening agent. This should be a
 *        random port on the localhost such as localhost:15342
 * @param keystore the keystore for agent operation
 *
 * @throws AgentNotAvailableException if the location specifies an invalid
 *         location/*from w  w w .j a  v a2 s  . co  m*/
 */
public SshAgentSocketListener(String location, KeyStore keystore) throws AgentNotAvailableException {
    log.info("New SshAgent instance created");

    // Verify the agent location
    this.location = location;

    if (location == null) {
        throw new AgentNotAvailableException();
    }

    this.location = location;

    int idx = location.indexOf(":");

    if (idx == -1) {
        throw new AgentNotAvailableException();
    }

    String host = location.substring(0, idx);
    port = Integer.parseInt(location.substring(idx + 1));

    this.keystore = keystore;

    try {
        server = new ServerSocket(port, 5, InetAddress.getByName(host));
    } catch (Exception e) {
        e.printStackTrace();
    }
}

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From source file:de.dakror.virtualhub.server.Server.java

public Server() {
    currentServer = this;

    dir = new File(CFG.DIR, "Server");
    dir.mkdir();/*from w  w w.  jav  a 2 s.  c o  m*/

    frame = new ServerFrame();
    frame.addWindowListener(new WindowAdapter() {
        @Override
        public void windowClosing(WindowEvent e) {
            shutdown();
        }
    });

    setDefaultUncaughtExceptionHandler(new UncaughtExceptionHandler() {
        @Override
        public void uncaughtException(Thread t, Throwable e) {
            StringWriter sw = new StringWriter();
            e.printStackTrace(new PrintWriter(sw));
            frame.log("ERROR: " + sw.toString());
        }
    });

    try {
        socket = new ServerSocket(CFG.SERVER_PORT, 0, InetAddress.getLocalHost());
        frame.log("Starte Server unter " + socket.getInetAddress().getHostAddress() + ":"
                + socket.getLocalPort());
    } catch (BindException e) {
        frame.log("Es luft bereits ein Server auf diesem Port!");
        shutdown();
        return;
    } catch (Exception e) {
        e.printStackTrace();
    }

    DBManager.init();
    frame.log("Datenbank initialisiert");

    start();
}

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