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

Example 21 with SocketException

use of java.net.SocketException in project webmagic by code4craft.

the class ProxyUtils method getNetworkInterface.

private static String getNetworkInterface() {
    String networkInterfaceName = ">>>> modify networkInterface in us.codecraft.webmagic.utils.ProxyUtils";
    Enumeration<NetworkInterface> enumeration = null;
    try {
        enumeration = NetworkInterface.getNetworkInterfaces();
    } catch (SocketException e1) {
        e1.printStackTrace();
    }
    while (enumeration.hasMoreElements()) {
        NetworkInterface networkInterface = enumeration.nextElement();
        Enumeration<InetAddress> addr = networkInterface.getInetAddresses();
        while (addr.hasMoreElements()) {
            String s = addr.nextElement().getHostAddress();
            Pattern IPV4_PATTERN = Pattern.compile("^(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)(\\.(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)){3}$");
            if (s != null && IPV4_PATTERN.matcher(s).matches()) {
                networkInterfaceName += networkInterface.toString() + "IP:" + s + "\n\n";
            }
        }
    }
    return networkInterfaceName;
}

Example 22 with SocketException

use of java.net.SocketException in project openhab1-addons by openhab.

the class TCPConnector method open.

/**
     * {@inheritDoc}
     **/
public void open() {
    try {
        tcpSocket = new Socket();
        SocketAddress TPIsocketAddress = new InetSocketAddress(ipAddress, tcpPort);
        tcpSocket.connect(TPIsocketAddress, connectTimeout);
        tcpOutput = new OutputStreamWriter(tcpSocket.getOutputStream(), "US-ASCII");
        tcpInput = new BufferedReader(new InputStreamReader(tcpSocket.getInputStream()));
        connected = true;
        // Start the TCP Listener
        TCPListener = new TCPListener();
        TCPListener.start();
    } catch (UnknownHostException exception) {
        logger.error("open(): Unknown Host Exception: ", exception);
        connected = false;
    } catch (SocketException socketException) {
        logger.error("open(): Socket Exception: ", socketException);
        connected = false;
    } catch (IOException ioException) {
        logger.error("open(): IO Exception: ", ioException);
        connected = false;
    } catch (Exception exception) {
        logger.error("open(): Exception: ", exception);
        connected = false;
    }
}

Example 23 with SocketException

use of java.net.SocketException in project openhab1-addons by openhab.

the class AnelUDPConnector method sendDatagram.

/**
     * Send data to the specified address via the specified UDP port.
     *
     * @param data
     *            The data to send.
     * @throws Exception
     *             If an exception occurred.
     */
void sendDatagram(byte[] data) throws Exception {
    if (data == null || data.length == 0) {
        throw new IllegalArgumentException("data must not be null or empty");
    }
    try {
        final InetAddress ipAddress = InetAddress.getByName(host);
        final DatagramPacket packet = new DatagramPacket(data, data.length, ipAddress, sendPort);
        final DatagramSocket socket = new DatagramSocket();
        socket.send(packet);
        socket.close();
    } catch (SocketException e) {
        throw new Exception(e);
    } catch (UnknownHostException e) {
        throw new Exception("Could not resolve host: " + host, e);
    } catch (IOException e) {
        throw new Exception(e);
    }
}

Example 24 with SocketException

use of java.net.SocketException in project openhab1-addons by openhab.

the class AnelUDPConnector method receiveDatagram.

/**
     * This is a blocking call for receiving data from the specific UDP port.
     *
     * @return The received data.
     * @throws Exception
     *             If an exception occurred.
     */
byte[] receiveDatagram() throws Exception {
    try {
        if (socket == null) {
            socket = new DatagramSocket(receivePort);
        }
        // Create a packet
        final DatagramPacket packet = new DatagramPacket(new byte[MAX_PACKET_SIZE], MAX_PACKET_SIZE);
        // Receive a packet (blocking)
        socket.receive(packet);
        return Arrays.copyOfRange(packet.getData(), 0, packet.getLength() - 1);
    } catch (SocketException e) {
        if (e.getMessage() != null && e.getMessage().equals("socket closed")) {
            // happens during shutdown
            return null;
        }
        throw new Exception(e);
    } catch (IOException e) {
        throw new Exception(e);
    }
}

Example 25 with SocketException

use of java.net.SocketException in project openhab1-addons by openhab.

the class NibeHeatPumpUDPConnector method receiveDatagram.

@Override
public byte[] receiveDatagram() throws NibeHeatPumpException {
    final int PACKETSIZE = 255;
    try {
        if (socket == null) {
            socket = new DatagramSocket(port);
        }
        // Create a packet
        DatagramPacket packet = new DatagramPacket(new byte[PACKETSIZE], PACKETSIZE);
        // Receive a packet (blocking)
        socket.receive(packet);
        return Arrays.copyOfRange(packet.getData(), 0, packet.getLength());
    } catch (SocketException e) {
        throw new NibeHeatPumpException(e);
    } catch (IOException e) {
        throw new NibeHeatPumpException(e);
    }
}