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

Example 76 with DatagramSocket

use of java.net.DatagramSocket in project mc-dev by Bukkit.

the class RemoteStatusListener method g.

private boolean g() {
    try {
        this.socket = new DatagramSocket(this.bindPort, InetAddress.getByName(this.motd));
        this.a(this.socket);
        this.socket.setSoTimeout(500);
        return true;
    } catch (SocketException socketexception) {
        this.warning("Unable to initialise query system on " + this.motd + ":" + this.bindPort + " (Socket): " + socketexception.getMessage());
    } catch (UnknownHostException unknownhostexception) {
        this.warning("Unable to initialise query system on " + this.motd + ":" + this.bindPort + " (Unknown Host): " + unknownhostexception.getMessage());
    } catch (Exception exception) {
        this.warning("Unable to initialise query system on " + this.motd + ":" + this.bindPort + " (E): " + exception.getMessage());
    }
    return false;
}

Example 77 with DatagramSocket

use of java.net.DatagramSocket in project graylog2-server by Graylog2.

the class UdpTransportTest method sendUdpDatagram.

private void sendUdpDatagram(String hostname, int port, int size) throws IOException {
    final InetAddress address = InetAddress.getByName(hostname);
    final byte[] data = new byte[size];
    final DatagramPacket packet = new DatagramPacket(data, data.length, address, port);
    DatagramSocket toSocket = null;
    try {
        toSocket = new DatagramSocket();
        toSocket.send(packet);
    } finally {
        if (toSocket != null) {
            toSocket.close();
        }
    }
}

Example 78 with DatagramSocket

use of java.net.DatagramSocket in project HdrHistogram by HdrHistogram.

the class SimpleHistogramExample method recordTimeToCreateAndCloseDatagramSocket.

static void recordTimeToCreateAndCloseDatagramSocket() {
    long startTime = System.nanoTime();
    try {
        socket = new DatagramSocket();
    } catch (SocketException ex) {
    } finally {
        socket.close();
    }
    long endTime = System.nanoTime();
    histogram.recordValue(endTime - startTime);
}

Example 79 with DatagramSocket

use of java.net.DatagramSocket in project android_frameworks_base by DirtyUnicorns.

the class BandwidthEnforcementTestService method testDns.

/**
     * Tests dns query.
     * @return true if it was able to connect, false otherwise.
     */
public static boolean testDns() {
    try {
        final DatagramSocket socket = new DatagramSocket();
        try {
            socket.setSoTimeout(10000);
            final byte[] query = buildDnsQuery("www", "android", "com");
            final DatagramPacket queryPacket = new DatagramPacket(query, query.length, InetAddress.parseNumericAddress("8.8.8.8"), 53);
            socket.send(queryPacket);
            final byte[] reply = new byte[query.length];
            final DatagramPacket replyPacket = new DatagramPacket(reply, reply.length);
            socket.receive(replyPacket);
            return true;
        } finally {
            socket.close();
        }
    } catch (IOException e) {
        Log.d(TAG, "error: " + e);
    }
    return false;
}

Example 80 with DatagramSocket

use of java.net.DatagramSocket in project opennms by OpenNMS.

the class NativeSocketTest method testServer.

@Test
public void testServer() throws Exception {
    String[] cmds = new String[] { "echo", "echo2", "quit" };
    DatagramSocket socket = null;
    try {
        socket = new DatagramSocket();
        for (final String cmd : cmds) {
            final DatagramSocket sock = socket;
            final FutureTask<DatagramPacket> task = new FutureTask<DatagramPacket>(new Callable<DatagramPacket>() {

                @Override
                public DatagramPacket call() throws Exception {
                    printf("Sending cmd: %s\n", cmd);
                    final byte[] data = cmd.getBytes(StandardCharsets.UTF_8);
                    final DatagramPacket p = new DatagramPacket(data, data.length, InetAddress.getLocalHost(), sock.getLocalPort());
                    sock.send(p);
                    printf("Receiving...\n");
                    final DatagramPacket r = new DatagramPacket(new byte[128], 128);
                    sock.receive(r);
                    printf("Received\n");
                    return r;
                }
            });
            m_executor.execute(task);
            final DatagramPacket r = task.get(10, TimeUnit.SECONDS);
            assertNotNull(r);
            final String response = new String(r.getData(), r.getOffset(), r.getLength(), StandardCharsets.UTF_8);
            printf("Received Response: %s from %s:%d\n", response, r.getAddress().getHostAddress(), r.getPort());
            assertEquals(cmd, response);
        }
    } finally {
        if (socket != null)
            socket.close();
    }
}