Example usage for java.net Socket getLocalPort

List of usage examples for java.net Socket getLocalPort

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Introduction

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

Prototype

public int getLocalPort()

Source Link

Document

Returns the local port number to which this socket is bound.

Usage

From source file:org.unitime.timetable.solver.remote.RemoteSolverServerProxy.java

public Object query(Object command) throws Exception {
    Socket socket = null;
    try {/*ww  w  .  ja  v a 2 s  .  c  om*/
        socket = leaseConnection();
        sLog.debug("-- connection (" + iLeasedSockets.size() + ") " + this + "@" + socket.getLocalPort()
                + " leased");
        Object answer = null;
        RemoteIo.writeObject(socket, command);
        //sLog.debug("Q:"+(command instanceof Object[]?((Object[])command)[0]:command));
        try {
            answer = RemoteIo.readObject(socket);
        } catch (java.io.EOFException ex) {
        }
        ;
        //sLog.debug("A:"+answer);
        //disconnect();
        if (answer != null && answer instanceof Exception)
            throw (Exception) answer;
        return answer;
    } catch (SocketException e) {
        disconnectProxy();
        sLog.error("Unable to query, reason: " + e.getMessage());
        return null;
    } finally {
        if (socket != null) {
            releaseConnection(socket);
            sLog.debug("-- connection (" + iLeasedSockets.size() + ") " + this + "@" + socket.getLocalPort()
                    + " released");
        }
    }
}

From source file:org.unitime.timetable.solver.remote.RemoteSolverServerProxy.java

public Socket leaseConnection() throws Exception {
    synchronized (iSocketPool) {
        if (iSocketPool.isEmpty() && iSocketPool.size() + iLeasedSockets.size() < sMaxPoolSize) {
            Socket socket = ConnectionFactory.getSocketFactory().createSocket(iAddress.getHostName(), iPort);
            ;/*from   w w w.j  ava 2s.c  o  m*/
            sLog.debug("-- connection " + this + "@" + socket.getLocalPort() + " created");
            iLeasedSockets.addElement(socket);
            return socket;
        }
        while (true) {
            if (!iSocketPool.isEmpty()) {
                Socket socket = (Socket) iSocketPool.firstElement();
                iSocketPool.removeElement(socket);
                if (socket.isClosed()) {
                    socket = ConnectionFactory.getSocketFactory().createSocket(iAddress.getHostName(), iPort);
                    ;
                    sLog.debug("-- connection " + this + "@" + socket.getLocalPort() + " created (reconnect)");
                }
                iLeasedSockets.addElement(socket);
                return socket;
            }
            iSocketPool.wait();
        }
    }
}

From source file:org.apache.hadoop.net.TestNetUtils.java

/**
 * Test that we can't accidentally connect back to the connecting socket due
 * to a quirk in the TCP spec./*from w w  w .  j ava2  s.  c o  m*/
 *
 * This is a regression test for HADOOP-6722.
 */
@Test
public void testAvoidLoopbackTcpSockets() throws Exception {
    Configuration conf = new Configuration();

    Socket socket = NetUtils.getDefaultSocketFactory(conf).createSocket();
    socket.bind(new InetSocketAddress("localhost", 0));
    System.err.println("local address: " + socket.getLocalAddress());
    System.err.println("local port: " + socket.getLocalPort());
    try {
        NetUtils.connect(socket, new InetSocketAddress(socket.getLocalAddress(), socket.getLocalPort()), 20000);
        socket.close();
        fail("Should not have connected");
    } catch (ConnectException ce) {
        System.err.println("Got exception: " + ce);
        assertTrue(ce.getMessage().contains("resulted in a loopback"));
    } catch (SocketException se) {
        // Some TCP stacks will actually throw their own Invalid argument
        // exception here. This is also OK.
        assertTrue(se.getMessage().contains("Invalid argument"));
    }
}

From source file:org.apache.hama.util.BSPNetUtils.java

/**
 * Like {@link NetUtils#connect(Socket, SocketAddress, int)} but also takes a
 * local address and port to bind the socket to.
 * //from ww  w.  ja v  a  2s.c  o  m
 * @param socket
 * @param endpoint the remote address
 * @param localAddr the local address to bind the socket to
 * @param timeout timeout in milliseconds
 */
public static void connect(Socket socket, SocketAddress endpoint, SocketAddress localAddr, int timeout)
        throws IOException {
    if (socket == null || endpoint == null || timeout < 0) {
        throw new IllegalArgumentException("Illegal argument for connect()");
    }

    SocketChannel ch = socket.getChannel();

    if (localAddr != null) {
        socket.bind(localAddr);
    }

    if (ch == null) {
        // let the default implementation handle it.
        socket.connect(endpoint, timeout);
    } else {
        SocketIOWithTimeout.connect(ch, endpoint, timeout);
    }

    // There is a very rare case allowed by the TCP specification, such that
    // if we are trying to connect to an endpoint on the local machine,
    // and we end up choosing an ephemeral port equal to the destination port,
    // we will actually end up getting connected to ourself (ie any data we
    // send just comes right back). This is only possible if the target
    // daemon is down, so we'll treat it like connection refused.
    if (socket.getLocalPort() == socket.getPort() && socket.getLocalAddress().equals(socket.getInetAddress())) {
        LOG.info("Detected a loopback TCP socket, disconnecting it");
        socket.close();
        throw new ConnectException("Localhost targeted connection resulted in a loopback. "
                + "No daemon is listening on the target port.");
    }
}

From source file:org.apache.solr.client.solrj.impl.BasicHttpSolrServerTest.java

private int findUnusedPort() {
    for (int port = 0; port < 65535; port++) {
        Socket s = new Socket();
        try {/*from   w  w w .  ja  va 2 s . c o  m*/
            s.bind(null);
            int availablePort = s.getLocalPort();
            s.close();
            return availablePort;
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    throw new RuntimeException("Could not find unused TCP port.");
}

From source file:org.apache.ftpserver.ssl.Ssl.java

/**
 * Returns a socket layered over an existing socket.
 *///from   w ww .  j av  a2  s  .c om
public Socket createSocket(String protocol, Socket soc, boolean clientMode) throws Exception {

    // already wrapped - no need to do anything
    if (soc instanceof SSLSocket) {
        return soc;
    }

    // get socket factory
    SSLContext ctx = getSSLContext(protocol);
    SSLSocketFactory socFactory = ctx.getSocketFactory();

    // create socket
    String host = soc.getInetAddress().getHostAddress();
    int port = soc.getLocalPort();
    SSLSocket ssoc = (SSLSocket) socFactory.createSocket(soc, host, port, true);
    ssoc.setUseClientMode(clientMode);

    // initialize socket
    String cipherSuites[] = ssoc.getSupportedCipherSuites();
    ssoc.setEnabledCipherSuites(cipherSuites);
    ssoc.setNeedClientAuth(m_clientAuthReqd);

    return ssoc;
}

From source file:com.mirth.connect.server.util.ConnectorUtil.java

public static ConnectionTestResponse testConnection(String host, int port, int timeout, String localAddr,
        int localPort) throws Exception {
    Socket socket = null;
    InetSocketAddress address = null;
    InetSocketAddress localAddress = null;

    try {//from w w  w.j a  v a  2 s. c om
        address = new InetSocketAddress(host, port);

        if (StringUtils.isBlank(address.getAddress().getHostAddress()) || (address.getPort() < 0)
                || (address.getPort() > 65534)) {
            throw new Exception();
        }
    } catch (Exception e) {
        return new ConnectionTestResponse(ConnectionTestResponse.Type.FAILURE, "Invalid host or port.");
    }

    if (localAddr != null) {
        try {
            localAddress = new InetSocketAddress(localAddr, localPort);

            if (StringUtils.isBlank(localAddress.getAddress().getHostAddress()) || (localAddress.getPort() < 0)
                    || (localAddress.getPort() > 65534)) {
                throw new Exception();
            }
        } catch (Exception e) {
            return new ConnectionTestResponse(ConnectionTestResponse.Type.FAILURE,
                    "Invalid local host or port.");
        }
    }

    try {
        socket = new Socket();

        if (localAddress != null) {
            try {
                socket.bind(localAddress);
            } catch (Exception e) {
                return new ConnectionTestResponse(ConnectionTestResponse.Type.FAILURE,
                        "Could not bind to local address: " + localAddress.getAddress().getHostAddress() + ":"
                                + localAddress.getPort());
            }
        }

        socket.connect(address, timeout);
        String connectionInfo = socket.getLocalAddress().getHostAddress() + ":" + socket.getLocalPort() + " -> "
                + address.getAddress().getHostAddress() + ":" + address.getPort();
        return new ConnectionTestResponse(ConnectionTestResponse.Type.SUCCESS,
                "Successfully connected to host: " + connectionInfo, connectionInfo);
    } catch (SocketTimeoutException ste) {
        return new ConnectionTestResponse(ConnectionTestResponse.Type.TIME_OUT, "Timed out connecting to host: "
                + address.getAddress().getHostAddress() + ":" + address.getPort());
    } catch (Exception e) {
        return new ConnectionTestResponse(ConnectionTestResponse.Type.FAILURE, "Could not connect to host: "
                + address.getAddress().getHostAddress() + ":" + address.getPort());
    } finally {
        if (socket != null) {
            socket.close();
        }
    }
}

From source file:org.apache.isis.objectstore.nosql.db.file.server.FileServer.java

private void startSyncing() {
    final String syncHost = config.getString("fileserver.sync-host", DEFAULT_HOST);
    final int syncPort = config.getInt("fileserver.sync-port", DEFAULT_SYNC_PORT);
    final int connectionTimeout = config.getInt("fileserver.connection.timeout", 5000);

    LOG.info("preparing to sync to secondary server on " + syncHost + " port " + syncPort);

    final InetAddress address;
    try {/*ww  w .ja  va2 s  . com*/
        address = InetAddress.getByName(syncHost);
    } catch (final UnknownHostException e) {
        LOG.error("Unknown host " + syncHost, e);
        System.exit(0);
        return;
    }

    while (awaitConnections) {
        Socket socket = null;
        try {
            socket = new Socket(address, syncPort);
            LOG.info("sync connected to " + socket.getInetAddress().getHostAddress() + " port "
                    + socket.getLocalPort());

            final CRC32 crc32 = new CRC32();
            final DataOutput output = new DataOutputStream(
                    new CheckedOutputStream(socket.getOutputStream(), crc32));
            final DataInput input = new DataInputStream(socket.getInputStream());
            output.writeByte(INIT);
            long logId = input.readLong();
            do {
                final long nextLogId = logId + 1;
                final File file = Util.logFile(nextLogId);
                if (file.exists() && server.getLogger().isWritten(nextLogId)) {
                    logId++;

                    output.writeByte(RECOVERY_LOG);
                    crc32.reset();
                    output.writeLong(logId);

                    LOG.info("sending recovery file: " + file.getName());
                    final BufferedInputStream fileInput = new BufferedInputStream(new FileInputStream(file));

                    final byte[] buffer = new byte[8092];
                    int read;
                    while ((read = fileInput.read(buffer)) > 0) {
                        output.writeInt(read);
                        output.write(buffer, 0, read);
                    }
                    output.writeInt(0);

                    output.writeLong(crc32.getValue());
                }
                try {
                    Thread.sleep(300);
                } catch (final InterruptedException ignore) {
                }

                while (isQuiescent) {
                    try {
                        Thread.sleep(300);
                    } catch (final InterruptedException ignore) {
                    }
                }
            } while (awaitConnections);

        } catch (final ConnectException e) {
            LOG.warn("not yet connected to secondary server at " + syncHost + " port " + syncPort);
            try {
                Thread.sleep(connectionTimeout);
            } catch (final InterruptedException ignore) {
            }
        } catch (final IOException e) {
            LOG.error("start failure - networking not set up for " + syncHost, e);
            try {
                Thread.sleep(300);
            } catch (final InterruptedException ignore) {
            }
        } catch (final RuntimeException e) {
            LOG.error("start failure", e);
            try {
                Thread.sleep(300);
            } catch (final InterruptedException ignore) {
            }
        }
    }

}

From source file:org.pepstock.jem.gwt.server.connector.WebInterceptor.java

@Override
public void onConnect(Socket connectedSocket) throws IOException {
    LogAppl.getInstance().emit(NodeMessage.JEMC202I);
    PrintWriter out = null;/*from  ww  w.ja  va 2s.c  o  m*/
    BufferedReader in = null;
    String address = null;
    try {
        // get the printer to use to send the request to the server
        out = new PrintWriter(new OutputStreamWriter(connectedSocket.getOutputStream(), CharSet.DEFAULT));
        // get the reader to use to read the response sent from the server
        in = new BufferedReader(new InputStreamReader(connectedSocket.getInputStream(), CharSet.DEFAULT));
        // is the ip seen from the server
        String ip = connectedSocket.getLocalAddress().getHostAddress();
        // is the port seen from the server
        int port = connectedSocket.getLocalPort();
        address = ip + ":" + port;
        // if it must read the keystore 
        // form servlet context
        if (readKeyStore) {
            readKeyStore();
        }
        // instantiate the jemProtocol that give the right request (Base64
        // encoded) from the given response
        Key symmetricKey = KeysUtil.getSymmetricKey(clusterKeystoreInfo);
        ClientLoginProtocol jemClientProtocol = new ClientLoginProtocol(symmetricKey);
        String request = jemClientProtocol.getRequestFromResponse(null, address, LoginRequest.JEM_WEB_USER);
        LogAppl.getInstance().emit(NodeMessage.JEMC203I, new String(Base64.decode(request), CharSet.DEFAULT));
        out.println(request);
        out.flush();
        String inputResponse;
        String outputRequest;
        while ((inputResponse = in.readLine()) != null) {
            outputRequest = jemClientProtocol.getRequestFromResponse(inputResponse, address,
                    LoginRequest.JEM_WEB_USER);
            LogAppl.getInstance().emit(NodeMessage.JEMC203I,
                    new String(Base64.decode(inputResponse), CharSet.DEFAULT));
            if (outputRequest != null) {
                LogAppl.getInstance().emit(NodeMessage.JEMC203I,
                        new String(Base64.decode(outputRequest), CharSet.DEFAULT));
            }
            if (jemClientProtocol.isConversationTerminated()) {
                break;
            }
            out.println(outputRequest);
            out.flush();
        }
    } catch (LoginProtocolException e) {
        LogAppl.getInstance().emit(NodeMessage.JEMC106W, e);
        throw new IOException(e.getMessage(), e);
    } catch (KeyException e) {
        LogAppl.getInstance().emit(NodeMessage.JEMC106W, e);
        throw new IOException(e.getMessage(), e);
    }
}

From source file:com.buaa.cfs.utils.NetUtils.java

/**
 * Like {@link NetUtils#connect(Socket, SocketAddress, int)} but also takes a local address and port to bind the
 * socket to.//w  w w.  j a v  a  2s .  c om
 *
 * @param socket
 * @param endpoint  the remote address
 * @param localAddr the local address to bind the socket to
 * @param timeout   timeout in milliseconds
 */
public static void connect(Socket socket, SocketAddress endpoint, SocketAddress localAddr, int timeout)
        throws IOException {
    if (socket == null || endpoint == null || timeout < 0) {
        throw new IllegalArgumentException("Illegal argument for connect()");
    }

    SocketChannel ch = socket.getChannel();

    if (localAddr != null) {
        Class localClass = localAddr.getClass();
        Class remoteClass = endpoint.getClass();
        Preconditions.checkArgument(localClass.equals(remoteClass),
                "Local address %s must be of same family as remote address %s.", localAddr, endpoint);
        socket.bind(localAddr);
    }

    try {
        if (ch == null) {
            // let the default implementation handle it.
            socket.connect(endpoint, timeout);
        } else {
            //        SocketIOWithTimeout.connect(ch, endpoint, timeout);
        }
    } catch (SocketTimeoutException ste) {
        //      throw new ConnectTimeoutException(ste.getMessage());
    }

    // There is a very rare case allowed by the TCP specification, such that
    // if we are trying to connect to an endpoint on the local machine,
    // and we end up choosing an ephemeral port equal to the destination port,
    // we will actually end up getting connected to ourself (ie any data we
    // send just comes right back). This is only possible if the target
    // daemon is down, so we'll treat it like connection refused.
    if (socket.getLocalPort() == socket.getPort() && socket.getLocalAddress().equals(socket.getInetAddress())) {
        LOG.info("Detected a loopback TCP socket, disconnecting it");
        socket.close();
        throw new ConnectException("Localhost targeted connection resulted in a loopback. "
                + "No daemon is listening on the target port.");
    }
}