Example usage for java.net DatagramSocket setSoTimeout

Introduction

In this page you can find the example usage for java.net DatagramSocket setSoTimeout.

Prototype

public synchronized void setSoTimeout(int timeout) throws SocketException 

Source Link

Document

Enable/disable SO_TIMEOUT with the specified timeout, in milliseconds.

Usage

From source file:vitro.vgw.wsiadapter.WSIAdapterCoap.java

/**
 * WSIAdapter interface//from   w w w  .j  a  va2  s . co m
 */

public List<Node> getAvailableNodeList() throws WSIAdapterException {

    logger.info("Getting available nodes...");

    nodesList = new ArrayList<Node>();

    List<String> wsnProxyList = new LinkedList<String>();
    wsnProxyList.add(Network.WLAB_OFFICE_PROXY_ADDRESS);
    wsnProxyList.add(Network.WLAB_LAB_PROXY_ADDRESS);

    DatagramSocket serverSocket = null;
    DatagramSocket clientSocket = null;
    String cmdString = "route";

    for (int i = 0; i < wsnProxyList.size(); i++) {
        try {
            serverSocket = new DatagramSocket(Constants.UDPSHELL_VGW_PORT);

            String hostProxyString = wsnProxyList.get(i);
            InetAddress hostProxy = InetAddress.getByName(hostProxyString);

            clientSocket = new DatagramSocket();
            byte[] bufCmd = new byte[10];
            bufCmd = cmdString.getBytes();
            DatagramPacket outcomingPacket = new DatagramPacket(bufCmd, bufCmd.length, hostProxy,
                    Constants.PROXY_UDPFORWARDER_PORT);
            clientSocket.send(outcomingPacket);

            boolean otherPackets = false;

            serverSocket.setSoTimeout(Constants.PROXY_RESPONSE_TIMEOUT);
            logger.info("Quering " + hostProxyString);
            try {
                byte[] bufAck = new byte[10];
                DatagramPacket ackPacket = new DatagramPacket(bufAck, bufAck.length);
                serverSocket.receive(ackPacket);
                String ackString = new String(ackPacket.getData()).trim();
                if (ackString.equals("ack")) {
                    otherPackets = true;
                }
            } catch (SocketTimeoutException e) {
                logger.warn(e.getMessage());
            }

            serverSocket.setSoTimeout(0);

            while (otherPackets) {
                try {
                    byte[] bufIncoming = new byte[1000];
                    DatagramPacket incomingPacket = new DatagramPacket(bufIncoming, bufIncoming.length);
                    serverSocket.receive(incomingPacket);
                    String currentNodeIP = new String(incomingPacket.getData()).trim();
                    if (!currentNodeIP.equals("end")) {
                        logger.info("Node: " + currentNodeIP);
                        nodesList.add(new Node(currentNodeIP));
                    } else {
                        otherPackets = false;
                        logger.info("No other nodes from " + hostProxyString);
                    }
                } catch (IOException e) {
                    logger.error(e.getMessage());
                }
            }

        } catch (UnknownHostException e) {
            logger.warn(e.getMessage() + " is not reachable.");
        } catch (SocketException e) {
            logger.error(e.getMessage());
        } catch (IOException e) {
            logger.error(e.getMessage());
        } finally {
            if (serverSocket != null) {
                serverSocket.close();
            }
            if (clientSocket != null) {
                clientSocket.close();
            }
        }
    }

    return nodesList;
}

---

From source file:com.clustercontrol.agent.Agent.java

/**
 * ??awakeAgent?/*  www. j a  va 2  s .  c  o m*/
 * Agent.properties???UDP?24005??????????(releaseLatch)
 * ????ReceiveTopic????Topic????
 */
public void waitAwakeAgent() {
    final int BUFSIZE = 1;

    byte[] buf = new byte[BUFSIZE];
    InetAddress cAddr; // ??IP
    int cPort; // ???
    DatagramSocket sock = null;
    boolean flag = true;
    int port = 24005;

    int awakeDelay = 1000;

    try {
        String awakeDelayStr = AgentProperties.getProperty("awake.delay", Integer.toString(1000));
        awakeDelay = Integer.parseInt(awakeDelayStr);
        m_log.info("awake.delay = " + awakeDelay + " msec");
    } catch (NumberFormatException e) {
        m_log.error("awake.delay", e);
    }

    while (true) {
        /*
         * UDP???flag?true??
         * ?????flag?false?????getTopic(releaseLatch)?
         * 
         * UDP???????getTopic????????
         * ??????
         */
        try {
            if (sock != null && port != awakePort) {
                sock.close();
                sock = null;
            }
            if (sock == null || !sock.isBound()) {
                port = awakePort;
                sock = new DatagramSocket(port);
                sock.setSoTimeout(awakeDelay);
            }
            DatagramPacket recvPacket = new DatagramPacket(buf, BUFSIZE);
            sock.receive(recvPacket);
            cAddr = recvPacket.getAddress();
            cPort = recvPacket.getPort();
            flag = true;
            m_log.info("waitAwakeAgent (" + cAddr.getHostAddress() + " onPort=" + cPort + ") buf.length="
                    + buf.length);
        } catch (SocketTimeoutException e) {
            if (flag) {
                m_log.info("waitAwakeAgent packet end");
                m_receiveTopic.releaseLatch();
                flag = false;
            }
        } catch (Exception e) {
            String msg = "waitAwakeAgent port=" + awakePort + ", " + e.getClass().getSimpleName() + ", "
                    + e.getMessage();
            if (e instanceof BindException) {
                m_log.warn(msg);
            } else {
                m_log.warn(msg, e);
            }
            try {
                Thread.sleep(60 * 1000);
            } catch (InterruptedException e1) {
                m_log.warn(e1, e1);
            }
        }
    }
}

---

From source file:org.opendaylight.lispflowmapping.integrationtest.MappingServiceIntegrationTest.java

License:asdf

private DatagramPacket receivePacket(DatagramSocket receivedSocket, int timeout) throws SocketTimeoutException {
    try {/*from   w  w  w  .  j  a v a  2s . c  o  m*/
        byte[] buffer = new byte[4096];
        DatagramPacket receivePacket = new DatagramPacket(buffer, buffer.length);
        LOG.trace("Waiting for packet from socket...");
        receivedSocket.setSoTimeout(timeout);
        receivedSocket.receive(receivePacket);
        LOG.trace("Recieved packet from socket!");
        return receivePacket;
    } catch (SocketTimeoutException ste) {
        throw ste;
    } catch (Throwable t) {
        fail();
        return null;
    }
}

---

From source file:vmTools.java

private String callOvnmanager(String node, String action) {
    String result = "";
    DatagramSocket socket = null;
    int serverPort = 9999;
    DatagramPacket packet2Send;/* w  w w . j  av a2s  . c om*/
    DatagramPacket receivedPacket;
    InetAddress theServerAddress;
    byte[] outBuffer;
    byte[] inBuffer;
    inBuffer = new byte[65536];
    outBuffer = new byte[8192];
    /*
    if (this.user == null) {
    this.user = "admin";
    }*/

    try {
        HttpSession session = RuntimeAccess.getInstance().getSession();

        String sessionUser = (String) session.getAttribute("User");
        if (sessionUser == null) {
            sessionUser = "administrator";
        }

        JSONObject joCmd = new JSONObject();
        JSONObject joAction = new JSONObject(action);
        joCmd.put("sender", sessionUser);
        joCmd.put("target", "VM");
        joCmd.put("node", node);
        joCmd.put("action", joAction);
        String output = joCmd.toString();

        socket = new DatagramSocket();
        String actionName = joAction.get("name").toString();
        /*if (actionName.equals("migrate")) {
        socket.setSoTimeout(600000);
        } else {
        socket.setSoTimeout(60000);
        }*/
        socket.setSoTimeout(60000);

        InetAddress serverInet = InetAddress.getByName("localhost");
        socket.connect(serverInet, serverPort);
        outBuffer = output.getBytes();
        packet2Send = new DatagramPacket(outBuffer, outBuffer.length, serverInet, serverPort);

        try {
            // send the data
            socket.send(packet2Send);
            receivedPacket = new DatagramPacket(inBuffer, inBuffer.length);
            socket.receive(receivedPacket);
            // the server response is...
            result = new String(receivedPacket.getData(), 0, receivedPacket.getLength());
            session.setAttribute("LastActive", System.currentTimeMillis());
        } catch (Exception excep) {
            String msg = excep.getMessage();
            //String msg = excep.toString();
            joCmd.remove("action");
            joAction.put("result", "Error:" + msg);
            joCmd.put("action", joAction);
            result = joCmd.toString();
        }
        socket.close();

    } catch (Exception e) {
        log(ERROR, "callOvnmanager", e);
        return e.toString();
    }
    return result;
}

---

From source file:serverTools.java

private String callOvnmanager(String node, String action) {
    String result = "";
    DatagramSocket socket = null;
    int serverPort = 9999;
    DatagramPacket packet2Send;/*from w  w w . ja  v a 2s.c om*/
    DatagramPacket receivedPacket;
    InetAddress theServerAddress;
    byte[] outBuffer;
    byte[] inBuffer;
    //inBuffer = new byte[8192];
    //outBuffer = new byte[8192];
    inBuffer = new byte[65536];
    outBuffer = new byte[8192];

    try {
        HttpSession session = RuntimeAccess.getInstance().getSession();
        String sessionUser = (String) session.getAttribute("User");
        if (sessionUser == null) {
            sessionUser = "administrator";
        }

        JSONObject joAction = new JSONObject(action);
        JSONObject joCmd = new JSONObject();
        joCmd.put("sender", sessionUser);
        joCmd.put("target", "NODE");
        joCmd.put("node", node);
        joCmd.put("action", joAction);
        String output = joCmd.toString();

        socket = new DatagramSocket();
        // set timeout
        String actionName = joAction.get("name").toString();
        if (actionName.equals("add")) {
            socket.setSoTimeout(90000);
        } else if (actionName.equals("connect")) {
            socket.setSoTimeout(60000);
        } else {
            socket.setSoTimeout(60000);
        }
        InetAddress serverInet = InetAddress.getByName("localhost");
        socket.connect(serverInet, serverPort);
        outBuffer = output.getBytes();
        packet2Send = new DatagramPacket(outBuffer, outBuffer.length, serverInet, serverPort);
        receivedPacket = new DatagramPacket(inBuffer, inBuffer.length);

        try {
            // send the data
            socket.send(packet2Send);
            // receive reply            
            socket.receive(receivedPacket);
            // the server reply is...
            result = new String(receivedPacket.getData(), 0, receivedPacket.getLength());
            session.setAttribute("LastActive", System.currentTimeMillis());
        } catch (Exception excep) {
            String msg = excep.getMessage();
            //String msg = excep.toString();
            joCmd.remove("action");
            joAction.put("result", "Error:" + msg);
            joCmd.put("action", joAction);
            result = joCmd.toString();
        }
        socket.close();

    } catch (Exception e) {
        log(ERROR, "callOvnmanager", e);
        return e.toString();
    }
    return result;
}

---

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