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

Example 6 with DatagramSocket

use of java.net.DatagramSocket in project hadoop by apache.

the class TestGangliaSink method testShouldCreateDatagramSocketByDefault.

@Test
public void testShouldCreateDatagramSocketByDefault() throws Exception {
    SubsetConfiguration conf = new ConfigBuilder().subset("test.sink.ganglia");
    GangliaSink30 gangliaSink = new GangliaSink30();
    gangliaSink.init(conf);
    DatagramSocket socket = gangliaSink.getDatagramSocket();
    assertFalse("Did not create DatagramSocket", socket == null || socket instanceof MulticastSocket);
}

Example 7 with DatagramSocket

use of java.net.DatagramSocket in project hadoop by apache.

the class TestGangliaSink method testShouldCreateDatagramSocketIfMulticastIsDisabled.

@Test
public void testShouldCreateDatagramSocketIfMulticastIsDisabled() throws Exception {
    SubsetConfiguration conf = new ConfigBuilder().add("test.sink.ganglia.multicast", false).subset("test.sink.ganglia");
    GangliaSink30 gangliaSink = new GangliaSink30();
    gangliaSink.init(conf);
    DatagramSocket socket = gangliaSink.getDatagramSocket();
    assertFalse("Did not create DatagramSocket", socket == null || socket instanceof MulticastSocket);
}

Example 8 with DatagramSocket

use of java.net.DatagramSocket in project hadoop by apache.

the class SimpleUdpClient method run.

public void run() throws IOException {
    InetAddress IPAddress = InetAddress.getByName(host);
    byte[] sendData = request.getBytes();
    byte[] receiveData = new byte[65535];
    // Use the provided socket if there is one, else just make a new one.
    DatagramSocket socket = this.clientSocket == null ? new DatagramSocket() : this.clientSocket;
    try {
        DatagramPacket sendPacket = new DatagramPacket(sendData, sendData.length, IPAddress, port);
        socket.send(sendPacket);
        socket.setSoTimeout(udpTimeoutMillis);
        DatagramPacket receivePacket = new DatagramPacket(receiveData, receiveData.length);
        socket.receive(receivePacket);
        // Check reply status
        XDR xdr = new XDR(Arrays.copyOfRange(receiveData, 0, receivePacket.getLength()));
        RpcReply reply = RpcReply.read(xdr);
        if (reply.getState() != RpcReply.ReplyState.MSG_ACCEPTED) {
            throw new IOException("Request failed: " + reply.getState());
        }
    } finally {
        // caller of this UDP client to close that socket.
        if (this.clientSocket == null) {
            socket.close();
        }
    }
}

Example 9 with DatagramSocket

use of java.net.DatagramSocket in project hadoop by apache.

the class PrivilegedNfsGatewayStarter method init.

@Override
public void init(DaemonContext context) throws Exception {
    System.err.println("Initializing privileged NFS client socket...");
    NfsConfiguration conf = new NfsConfiguration();
    int clientPort = conf.getInt(NfsConfigKeys.DFS_NFS_REGISTRATION_PORT_KEY, NfsConfigKeys.DFS_NFS_REGISTRATION_PORT_DEFAULT);
    if (clientPort < 1 || clientPort > 1023) {
        throw new RuntimeException("Must start privileged NFS server with '" + NfsConfigKeys.DFS_NFS_REGISTRATION_PORT_KEY + "' configured to a " + "privileged port.");
    }
    try {
        InetSocketAddress socketAddress = new InetSocketAddress("localhost", clientPort);
        registrationSocket = new DatagramSocket(null);
        registrationSocket.setReuseAddress(true);
        registrationSocket.bind(socketAddress);
    } catch (SocketException e) {
        LOG.error("Init failed for port=" + clientPort, e);
        throw e;
    }
    args = context.getArguments();
}

Example 10 with DatagramSocket

use of java.net.DatagramSocket in project hadoop by apache.

the class TestUdpServer method testRequest.

static void testRequest(XDR request, XDR request2) {
    try {
        DatagramSocket clientSocket = new DatagramSocket();
        InetAddress IPAddress = InetAddress.getByName("localhost");
        byte[] sendData = request.getBytes();
        byte[] receiveData = new byte[65535];
        DatagramPacket sendPacket = new DatagramPacket(sendData, sendData.length, IPAddress, Nfs3Constant.SUN_RPCBIND);
        clientSocket.send(sendPacket);
        DatagramPacket receivePacket = new DatagramPacket(receiveData, receiveData.length);
        clientSocket.receive(receivePacket);
        clientSocket.close();
    } catch (UnknownHostException e) {
        System.err.println("Don't know about host: localhost.");
        System.exit(1);
    } catch (IOException e) {
        System.err.println("Couldn't get I/O for " + "the connection to: localhost.");
        System.exit(1);
    }
}