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) throws IOException

Source Link

Document

Creates a server socket, bound to the specified port.

Usage

From source file:com.twosigma.beakerx.kernel.MagicKernelManager.java

public static Integer findFreePort() {
    ServerSocket socket = null;//w  w  w .j  a va 2s . co m
    try {
        socket = new ServerSocket(0);
        socket.setReuseAddress(true);
        int port = socket.getLocalPort();
        try {
            socket.close();
        } catch (IOException e) {
        }
        return port;
    } catch (IOException e) {
    } finally {
        if (socket != null) {
            try {
                socket.close();
            } catch (IOException e) {
            }
        }
    }
    return null;
}

From source file:de.undercouch.gradle.tasks.download.TestBase.java

/**
 * Find a free socket port//from   w  w w  .ja v  a2 s.c  om
 * @return the number of the free port
 * @throws IOException if an IO error occurred
 */
protected static int findPort() throws IOException {
    ServerSocket socket = null;
    try {
        socket = new ServerSocket(0);
        return socket.getLocalPort();
    } finally {
        if (socket != null) {
            socket.close();
        }
    }
}

From source file:com.zxy.commons.hystrix.HystrixProperties.java

/**
 * get hystrix stream port// w ww . java  2  s  . com
 * 
 * @return port
 * @throws IOException IOException
*/
public int getHystrixStreamPort() throws IOException {
    String portStr = env.getProperty(HYSTRIX_STREAM_PORT);
    if (StringUtils.isBlank(portStr)) {
        ServerSocket socket = new ServerSocket(0);
        try {
            return socket.getLocalPort();
        } finally {
            socket.close();
        }
    }
    return Integer.parseInt(portStr);
}

From source file:com.chinamobile.bcbsp.pipes.Application.java

/**
 * This method is the constructor./*from   w  ww .j av  a  2 s .  co m*/
 * @param job
 *        contains BSPJob configuration
 * @param processType
 *        the type of c++ process(for staff or workmanager)
 */
public Application(BSPJob job, String processType) throws IOException, InterruptedException {
    serverSocket = new ServerSocket(0);
    Map<String, String> env = new HashMap<String, String>();
    env.put("TMPDIR", System.getProperty("java.io.tmpdir"));
    env.put("bcbsp.pipes.command.port", Integer.toString(serverSocket.getLocalPort()));
    env.put("processType", processType);
    String bcbspdir = job.getConf().get("bcbsp.log.dir");
    LOG.info("bcbsp log dir : " + bcbspdir);
    env.put("bcbsp.log.dir", bcbspdir);
    List<String> cmd = new ArrayList<String>();
    String executable = job.getJobExe();
    FileUtil.chmod(executable, "a+x");
    cmd.add(executable);

    process = runClient(cmd, env);
    clientSocket = serverSocket.accept();
    this.handler = new TaskHandler();
    this.downlink = new BinaryProtocol(clientSocket, handler);
    this.downlink.start();
}

From source file:com.nike.vault.client.VaultClientTest.java

@Test(expected = VaultClientException.class)
public void read_throws_runtime_exception_if_unexpected_error_encountered() throws IOException {
    final ServerSocket serverSocket = new ServerSocket(0);
    final String vaultUrl = "http://localhost:" + serverSocket.getLocalPort();
    final VaultCredentialsProvider vaultCredentialsProvider = mock(VaultCredentialsProvider.class);
    final OkHttpClient httpClient = buildHttpClient(1, TimeUnit.SECONDS);
    vaultClient = new VaultClient(new StaticVaultUrlResolver(vaultUrl), vaultCredentialsProvider, httpClient);

    when(vaultCredentialsProvider.getCredentials()).thenReturn(new TestVaultCredentials());

    vaultClient.read("app/api-key");
}

From source file:com.kolich.boildown.Boil.java

private final void run() throws Exception {
    final Boiler.CompressionMethod method;
    final List<String> arguments;
    if (compress_ != null) {
        arguments = colonSplitter.splitToList(compress_);
        method = Boiler.CompressionMethod.COMPRESS;
    } else {/*w  ww  .jav  a  2s  .c o m*/
        arguments = colonSplitter.splitToList(decompress_);
        method = Boiler.CompressionMethod.DECOMPRESS;
    }

    if (arguments.size() != 3) {
        throw new IllegalArgumentException("Forwarder must be in the format of [port]:[host]:[port]");
    }

    // Parse the arguments.
    final int listenPort = Integer.parseInt(arguments.get(0));
    final String forwardHost = arguments.get(1);
    final int forwardPort = Integer.parseInt(arguments.get(2));

    final Boiler.Strategery strategery = getStrategery();

    final ThreadFactoryBuilder factoryBuilder = new ThreadFactoryBuilder().setDaemon(true)
            .setNameFormat("boiler-%d (" + listenPort + ":" + forwardHost + ":" + forwardPort + ")");

    final ThreadPoolExecutor threadPool = (ThreadPoolExecutor) Executors.newFixedThreadPool(poolSize_,
            factoryBuilder.build());

    try (final ServerSocket listener = new ServerSocket(listenPort)) {
        // Run loop!
        while (true) {
            // Blocks, waiting for new connections.
            final Socket client = listener.accept();
            if (threadPool.getActiveCount() >= poolSize_) {
                // All boilers busy, forcibly hang up.
                IOUtils.closeQuietly(client);
            } else {
                // Submit the boiler to the pool, only if there's space to safely do so.
                threadPool
                        .submit(new Boiler(client, method, strategery, forwardHost, forwardPort, bufferSize_));
            }
        }
    } catch (Exception e) {
        log.error("Exception in main run-loop.", e);
    } finally {
        threadPool.shutdown();
    }
}

From source file:com.evolveum.midpoint.model.intest.TestNotifications.java

private int findFreePort() throws IOException {
    try (ServerSocket socket = new ServerSocket(0)) {
        socket.setReuseAddress(true);//  w ww.  j  a  v a2s .  co m
        return socket.getLocalPort();
    }
}

From source file:com.gargoylesoftware.htmlunit.NoHttpResponseTest.java

@Override
public void run() {
    try {/* www . j av  a2  s  .c o m*/
        serverSocket_ = new ServerSocket(port_);
        started_.set(true);
        LOG.info("Starting listening on port " + port_);
        while (!shutdown_) {
            final Socket s = serverSocket_.accept();
            final BufferedReader br = new BufferedReader(new InputStreamReader(s.getInputStream()));

            final CharBuffer cb = CharBuffer.allocate(5000);
            br.read(cb);
            cb.flip();
            final String in = cb.toString();
            cb.rewind();

            final RawResponseData responseData = getResponseData(in);

            if (responseData == null || responseData.getStringContent() == DROP_CONNECTION) {
                LOG.info("Closing impolitely in & output streams");
                s.getOutputStream().close();
            } else {
                final PrintWriter pw = new PrintWriter(s.getOutputStream());
                pw.println("HTTP/1.0 " + responseData.getStatusCode() + " " + responseData.getStatusMessage());
                for (final NameValuePair header : responseData.getHeaders()) {
                    pw.println(header.getName() + ": " + header.getValue());
                }
                pw.println();
                pw.println(responseData.getStringContent());
                pw.println();
                pw.flush();
                pw.close();
            }
            br.close();
            s.close();
        }
    } catch (final SocketException e) {
        if (!shutdown_) {
            LOG.error(e);
        }
    } catch (final IOException e) {
        LOG.error(e);
    } finally {
        LOG.info("Finished listening on port " + port_);
    }
}

From source file:com.nesscomputing.db.postgres.embedded.EmbeddedPostgreSQL.java

private int detectPort() throws IOException {
    final ServerSocket socket = new ServerSocket(0);
    try {//from ww  w.java 2  s .c  o  m
        return socket.getLocalPort();
    } finally {
        socket.close();
    }
}

From source file:any.Linker.java

public void serve(final int port) {
    logger.info("+SERVICE: started to serve");

    try {/*  w  ww. j a  v  a  2 s .co m*/
        // Start the server socket (?)
        serverSocket = new ServerSocket(port);

        while (true) {
            final Socket socket = serverSocket.accept();
            logger.info(
                    socket.getInetAddress().getCanonicalHostName() + ":" + socket.getPort() + " is connected");

            IConnection conn = new Connection(Thread.currentThread().getName(), this, socket);
            namedCon.put(socket.getInetAddress().getCanonicalHostName() + ":" + socket.getPort(), conn);
            // namedCon.put( "host", conn);
            logger.info("+SERVICE: connected to client " + socket.getInetAddress().getCanonicalHostName() + ":"
                    + socket.getPort());
        }
    } catch (IOException e) {
        logger.error("+SERVICE, serve IO exception", e);
    } catch (InterruptedException e) {
        logger.error("+SERVICE, main loop interupted", e);
    }
}