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

Example 6 with DatagramPacket

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

the class TestStatsDMetrics method testPutMetrics2.

@Test(timeout = 3000)
public void testPutMetrics2() throws IOException {
    StatsDSink sink = new StatsDSink();
    List<MetricsTag> tags = new ArrayList<MetricsTag>();
    tags.add(new MetricsTag(MsInfo.Hostname, null));
    tags.add(new MetricsTag(MsInfo.Context, "jvm"));
    tags.add(new MetricsTag(MsInfo.ProcessName, "process"));
    Set<AbstractMetric> metrics = new HashSet<AbstractMetric>();
    metrics.add(makeMetric("foo1", 1, MetricType.COUNTER));
    metrics.add(makeMetric("foo2", 2, MetricType.GAUGE));
    MetricsRecord record = new MetricsRecordImpl(MsInfo.Context, (long) 10000, tags, metrics);
    try (DatagramSocket sock = new DatagramSocket()) {
        sock.setReceiveBufferSize(8192);
        final StatsDSink.StatsD mockStatsD = new StatsD(sock.getLocalAddress().getHostName(), sock.getLocalPort());
        Whitebox.setInternalState(sink, "statsd", mockStatsD);
        final DatagramPacket p = new DatagramPacket(new byte[8192], 8192);
        sink.putMetrics(record);
        sock.receive(p);
        String result = new String(p.getData(), 0, p.getLength(), Charset.forName("UTF-8"));
        assertTrue("Received data did not match data sent", result.equals("process.jvm.Context.foo1:1|c") || result.equals("process.jvm.Context.foo2:2|g"));
    } finally {
        sink.close();
    }
}

Example 7 with DatagramPacket

use of java.net.DatagramPacket 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 8 with DatagramPacket

use of java.net.DatagramPacket 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);
    }
}

Example 9 with DatagramPacket

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

the class TestPortmap method testRegistration.

@Test(timeout = 1000)
public void testRegistration() throws IOException, InterruptedException {
    XDR req = new XDR();
    RpcCall.getInstance(++xid, RpcProgramPortmap.PROGRAM, RpcProgramPortmap.VERSION, RpcProgramPortmap.PMAPPROC_SET, new CredentialsNone(), new VerifierNone()).write(req);
    PortmapMapping sent = new PortmapMapping(90000, 1, PortmapMapping.TRANSPORT_TCP, 1234);
    sent.serialize(req);
    byte[] reqBuf = req.getBytes();
    DatagramSocket s = new DatagramSocket();
    DatagramPacket p = new DatagramPacket(reqBuf, reqBuf.length, pm.getUdpServerLoAddress());
    try {
        s.send(p);
    } finally {
        s.close();
    }
    // Give the server a chance to process the request
    Thread.sleep(100);
    boolean found = false;
    @SuppressWarnings("unchecked") Map<String, PortmapMapping> map = (Map<String, PortmapMapping>) Whitebox.getInternalState(pm.getHandler(), "map");
    for (PortmapMapping m : map.values()) {
        if (m.getPort() == sent.getPort() && PortmapMapping.key(m).equals(PortmapMapping.key(sent))) {
            found = true;
            break;
        }
    }
    Assert.assertTrue("Registration failed", found);
}

Example 10 with DatagramPacket

use of java.net.DatagramPacket in project tomcat by apache.

the class MultiCastSender method send.

@Override
public int send(String mess) throws Exception {
    if (s == null) {
        try {
            group = InetAddress.getByName(config.getGroup());
            if (config.getHost() != null) {
                InetAddress addr = InetAddress.getByName(config.getHost());
                InetSocketAddress addrs = new InetSocketAddress(addr, config.getMultiport());
                s = new MulticastSocket(addrs);
            } else
                s = new MulticastSocket(config.getMultiport());
            s.setTimeToLive(config.getTtl());
            s.joinGroup(group);
        } catch (Exception ex) {
            log.error("Unable to use multicast: " + ex);
            s = null;
            return -1;
        }
    }
    byte[] buf;
    buf = mess.getBytes(StandardCharsets.US_ASCII);
    DatagramPacket data = new DatagramPacket(buf, buf.length, group, config.getMultiport());
    try {
        s.send(data);
    } catch (Exception ex) {
        log.error("Unable to send collected load information: " + ex);
        s.close();
        s = null;
        return -1;
    }
    return 0;
}