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

Example 91 with DatagramPacket

use of java.net.DatagramPacket 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();
    }
}

Example 92 with DatagramPacket

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

the class SyslogdLoadIT method testNGSyslog.

@Test
@Transactional
public void testNGSyslog() throws Exception {
    loadSyslogConfiguration("/etc/syslogd-syslogng-configuration.xml");
    startSyslogdJavaNet();
    m_eventCounter.anticipate();
    InetAddress address = InetAddress.getLocalHost();
    // handle an invalid packet
    byte[] bytes = "<34>main: 2010-08-19 localhost foo0: load test 0 on tty1\0".getBytes();
    DatagramPacket pkt = new DatagramPacket(bytes, bytes.length, address, SyslogClient.PORT);
    SyslogMessageLogDTO messageLog = m_syslogSinkModule.toMessageLog(new SyslogConnection(pkt, false));
    m_syslogSinkConsumer.handleMessage(messageLog);
    // handle a valid packet
    bytes = "<34>monkeysatemybrain!\0".getBytes();
    pkt = new DatagramPacket(bytes, bytes.length, address, SyslogClient.PORT);
    messageLog = m_syslogSinkModule.toMessageLog(new SyslogConnection(pkt, false));
    m_syslogSinkConsumer.handleMessage(messageLog);
    m_eventCounter.waitForFinish(120000);
    assertEquals(1, m_eventCounter.getCount());
}

Example 93 with DatagramPacket

use of java.net.DatagramPacket in project jdk8u_jdk by JetBrains.

the class JdpTestCase method run.

public void run() throws Exception {
    log.fine("Test started.");
    log.fine("Listening for multicast packets at " + connection.address.getHostAddress() + ":" + String.valueOf(connection.port));
    log.fine(initialLogMessage());
    log.fine("Pause in between packets is: " + connection.pauseInSeconds + " seconds.");
    startTime = System.currentTimeMillis();
    timeOut = connection.pauseInSeconds * TIME_OUT_FACTOR;
    log.fine("Timeout set to " + String.valueOf(timeOut) + " seconds.");
    MulticastSocket socket = connection.connectWithTimeout(timeOut * 1000);
    byte[] buffer = new byte[BUFFER_LENGTH];
    DatagramPacket datagram = new DatagramPacket(buffer, buffer.length);
    do {
        try {
            socket.receive(datagram);
            onReceived(extractUDPpayload(datagram));
        } catch (SocketTimeoutException e) {
            onSocketTimeOut(e);
        }
        if (hasTestLivedLongEnough()) {
            shutdown();
        }
    } while (shouldContinue());
    log.fine("Test ended successfully.");
}

Example 94 with DatagramPacket

use of java.net.DatagramPacket in project jdk8u_jdk by JetBrains.

the class DatagramTimeout method main.

public static void main(String[] args) throws Exception {
    boolean success = false;
    DatagramSocket sock = new DatagramSocket();
    try {
        DatagramPacket p;
        byte[] buffer = new byte[50];
        p = new DatagramPacket(buffer, buffer.length);
        sock.setSoTimeout(2);
        sock.receive(p);
    } catch (SocketTimeoutException e) {
        success = true;
    } finally {
        sock.close();
    }
    if (!success)
        throw new RuntimeException("Socket timeout failure.");
}

Example 95 with DatagramPacket

use of java.net.DatagramPacket in project jdk8u_jdk by JetBrains.

the class PortUnreachable method execute.

void execute() throws Exception {
    // pick a port for the server
    DatagramSocket sock2 = new DatagramSocket();
    serverPort = sock2.getLocalPort();
    // send a burst of packets to the unbound port - we should get back
    // icmp port unreachable messages
    //
    InetAddress addr = InetAddress.getLocalHost();
    byte[] b = "Hello me".getBytes();
    DatagramPacket packet = new DatagramPacket(b, b.length, addr, serverPort);
    //close just before sending
    sock2.close();
    for (int i = 0; i < 100; i++) clientSock.send(packet);
    serverSend();
    // try to receive
    b = new byte[25];
    packet = new DatagramPacket(b, b.length, addr, serverPort);
    clientSock.setSoTimeout(10000);
    clientSock.receive(packet);
    System.out.println("client received data packet " + new String(packet.getData()));
    // done
    clientSock.close();
}