java.net.DatagramSocket Java Examples

The following examples show how to use java.net.DatagramSocket. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source Project: physical-web   Author: google   File: Ssdp.java    License: Apache License 2.0 7 votes vote down vote up
public synchronized boolean start(Integer timeout) throws IOException {
  if (mThread == null) {
    // create a DatagramSocket without binding to any address
    mDatagramSocket = new DatagramSocket(null);
    mDatagramSocket.setReuseAddress(true);
    // bind to any free port
    mDatagramSocket.bind(null);
    if (timeout != null && timeout > 0) {
      mDatagramSocket.setSoTimeout(timeout);
    }
    mThread = new Thread(this);
    mThread.start();
    return true;
  }
  return false;
}
 
Example #2
Source Project: FimiX8-RE   Author: wladimir-computin   File: UdpConnectThread.java    License: MIT License 6 votes vote down vote up
public void run() {
    super.run();
    while (!this.isExit) {
        try {
            if (!SessionManager.getInstance().hasSession()) {
                try {
                    UdpConnect udpConnect = new UdpConnect(new DatagramSocket(), this.option, new DataChanel());
                    udpConnect.startSession();
                    SessionManager.getInstance().addSession(udpConnect);
                } catch (UnknownHostException e) {
                    e.printStackTrace();
                }
            }
        } catch (SocketException e2) {
            e2.printStackTrace();
        }
    }
}
 
Example #3
Source Project: openhab-greeair-binding   Author: jllcunha   File: GreeDevice.java    License: Apache License 2.0 6 votes vote down vote up
public void SetDevicePwrSaving(DatagramSocket clientSocket, Integer value) throws Exception {
    // Only allow this to happen if this device has been bound
    if (getIsBound() != Boolean.TRUE) {
        return;
    }

    // Set the values in the HashMap
    HashMap<String, Integer> parameters = new HashMap<>();
    parameters.put("SvSt", value);
    parameters.put("WdSpd", new Integer(0));
    parameters.put("Quiet", new Integer(0));
    parameters.put("Tur", new Integer(0));
    parameters.put("SwhSlp", new Integer(0));
    parameters.put("SlpMod", new Integer(0));

    ExecuteCommand(clientSocket, parameters);
}
 
Example #4
Source Project: jdk8u-jdk   Author: lambdalab-mirror   File: SnmpRequestHandler.java    License: GNU General Public License v2.0 6 votes vote down vote up
/**
 * Full constructor
 */
public SnmpRequestHandler(SnmpAdaptorServer server, int id,
                          DatagramSocket s, DatagramPacket p,
                          SnmpMibTree tree, Vector<SnmpMibAgent> m,
                          InetAddressAcl a,
                          SnmpPduFactory factory,
                          SnmpUserDataFactory dataFactory,
                          MBeanServer f, ObjectName n)
{
    super(server, id, f, n);

    // Need a reference on SnmpAdaptorServer for getNext & getBulk,
    // in case of oid equality (mib overlapping).
    //
    adaptor = server;
    socket = s;
    packet = p;
    root= tree;
    mibs = new Vector<>(m);
    subs= new Hashtable<>(mibs.size());
    ipacl = a;
    pduFactory = factory ;
    userDataFactory = dataFactory ;
    //thread.start();
}
 
Example #5
Source Project: PacketProxy   Author: DeNA   File: PrivateDNS.java    License: Apache License 2.0 6 votes vote down vote up
public PrivateDNSImp(DNSSpoofingIPGetter dnsSpoofingIPGetter) throws Exception {
	try {
		this.spoofingIp = dnsSpoofingIPGetter;
		soc = new DatagramSocket(PORT);
		recvPacket = new DatagramPacket(buf, BUFSIZE);
		sendPacket = null;
	} catch (BindException e) {
		util.packetProxyLogErr("cannot boot private DNS server (permission issue or already listened)");
		return;
	}

	s_sAddr = InetAddress.getByName(dnsServer);
	s_soc = new DatagramSocket();
	s_recvPacket = new DatagramPacket(buf, BUFSIZE);
	s_sendPacket = null;
}
 
Example #6
Source Project: db   Author: blobcity   File: NodeDiscovery.java    License: GNU Affero General Public License v3.0 6 votes vote down vote up
@PostConstruct
private void init() {
    
    if (!configBean.contains(ConfigProperties.CLUSTER_BROADCAST_IP)) {
        logger.warn("Broadcast IP not configured for node. Clustering will be disabled until an appropriate broadcast IP address is set.");
        return;
    }

    beaconListener = new BeaconListener(this);
    beaconListener.start();

    try {
        host = InetAddress.getByName(configBean.getStringProperty(ConfigProperties.CLUSTER_BROADCAST_IP));
        socket = new DatagramSocket();
        byte[] buff = configBean.getStringProperty(ConfigProperties.NODE_ID).getBytes();
        packet = new DatagramPacket(buff, buff.length, host, ClusterConstants.BEACON_PORT);
        broadcastBeacon = true;
        broadcastBeaconAlreadyLogged = false;
    } catch (UnknownHostException | SocketException ex) {
        logger.error("Unable to start node discovery", ex);
    }
}
 
Example #7
Source Project: JDKSourceCode1.8   Author: wupeixuan   File: SnmpRequestHandler.java    License: MIT License 6 votes vote down vote up
/**
 * Full constructor
 */
public SnmpRequestHandler(SnmpAdaptorServer server, int id,
                          DatagramSocket s, DatagramPacket p,
                          SnmpMibTree tree, Vector<SnmpMibAgent> m,
                          InetAddressAcl a,
                          SnmpPduFactory factory,
                          SnmpUserDataFactory dataFactory,
                          MBeanServer f, ObjectName n)
{
    super(server, id, f, n);

    // Need a reference on SnmpAdaptorServer for getNext & getBulk,
    // in case of oid equality (mib overlapping).
    //
    adaptor = server;
    socket = s;
    packet = p;
    root= tree;
    mibs = new Vector<>(m);
    subs= new Hashtable<>(mibs.size());
    ipacl = a;
    pduFactory = factory ;
    userDataFactory = dataFactory ;
    //thread.start();
}
 
Example #8
Source Project: sockslib   Author: fengyouchao   File: UDPTimeServer.java    License: Apache License 2.0 6 votes vote down vote up
public void shutdown() {
  try {
    DatagramSocket clientSocket = new DatagramSocket();
    String shutdownSignal = "shutdown";
    byte[] sendBuffer = shutdownSignal.getBytes();
    DatagramPacket packet =
        new DatagramPacket(sendBuffer, sendBuffer.length, new InetSocketAddress("localhost",
            port));
    clientSocket.send(packet);
  } catch (IOException e) {
    logger.error(e.getMessage(), e);
  }
  stop = true;
  if (thread != null) {
    thread.interrupt();
  }
}
 
Example #9
Source Project: j2objc   Author: google   File: DatagramChannelTest.java    License: Apache License 2.0 6 votes vote down vote up
private void assertSocketActionAfterConnect(DatagramSocket s) throws IOException {
    assertEquals(s.getPort(), datagramSocket1Address.getPort());
    try {
        s.connect(datagramSocket2Address);
        fail();
    } catch (IllegalStateException expected) {
    }

    assertTrue(this.channel1.isConnected());
    assertTrue(s.isConnected());
    // not changed
    assertEquals(s.getPort(), datagramSocket1Address.getPort());

    s.disconnect();
    assertFalse(this.channel1.isConnected());
    assertFalse(s.isConnected());

    s.close();
    assertTrue(s.isClosed());
    assertFalse(this.channel1.isOpen());
}
 
Example #10
Source Project: hadoop   Author: naver   File: PrivilegedNfsGatewayStarter.java    License: Apache License 2.0 6 votes vote down vote up
@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.");
  }
  registrationSocket = new DatagramSocket(
      new InetSocketAddress("localhost", clientPort));
  registrationSocket.setReuseAddress(true);
  args = context.getArguments();
}
 
Example #11
Source Project: mts   Author: ericsson-mts   File: RTPSessionMgr.java    License: GNU General Public License v3.0 6 votes vote down vote up
private synchronized RTCPReporter startParticipating(DatagramSocket datagramsocket)
throws IOException
{
    UDPPacketSender udppacketsender = new UDPPacketSender(datagramsocket);
    udpPacketSender = udppacketsender;
    if(ttl != 1)
    {
        udppacketsender.setttl(ttl);
    }
    
    // SRIT add for RTP
    RTPRawSender rtprawsender = new RTPRawSender(remoteAddress.getDataPort(), remoteAddress.getControlAddress().getHostName(), udppacketsender);       
    rtpTransmitter = new RTPTransmitter(cache, rtprawsender);
    // rtpTransmitter.setSSRCInfo(cache.ourssrc);
    // RTCPReporter rtpreporter = new RTCPReporter(cache, rtcpTransmitter);

    RTCPRawSender rtcprawsender = new RTCPRawSender(remoteAddress.getControlPort(), remoteAddress.getControlAddress().getHostName(), udppacketsender);
    rtcpTransmitter = new RTCPTransmitter(cache, rtcprawsender);
    rtcpTransmitter.setSSRCInfo(cache.ourssrc);
    RTCPReporter rtcpreporter = new RTCPReporter(cache, rtcpTransmitter);
    
    startedparticipating = true;
    return rtcpreporter;
}
 
Example #12
Source Project: WiFiFlutter   Author: alternadom   File: WifiIotPlugin.java    License: MIT License 6 votes vote down vote up
public static void closeSilently(Object... xs) {
    /// Note: on Android API levels prior to 19 Socket does not implement Closeable
    for (Object x : xs) {
        if (x != null) {
            try {
                if (x instanceof Closeable) {
                    ((Closeable) x).close();
                } else if (x instanceof Socket) {
                    ((Socket) x).close();
                } else if (x instanceof DatagramSocket) {
                    ((DatagramSocket) x).close();
                } else {
                    throw new RuntimeException("cannot close " + x);
                }
            } catch (Throwable e) {
                // TODO : do something ?
            }
        }
    }
}
 
Example #13
Source Project: oodt   Author: apache   File: DatagramLogger.java    License: Apache License 2.0 6 votes vote down vote up
public static void main(String[] argv) throws Throwable {
	if (argv.length > 0) {
		System.err.println("This program takes NO command line arguments.");
		System.err.println("Set the activity.port property to adjust the port number.");
		System.err.println("Set the activity.storage property to set the Storage class to use.");
		System.exit(1);
	}
	int port = Integer.getInteger("activity.port", VAL);
	String className = System.getProperty("activity.storage");
	if (className == null) {
		System.err.println("No Storage class defined via the `activity.storage' property; exiting...");
		System.exit(1);
	}
	Class storageClass = Class.forName(className);
	storage = (Storage) storageClass.newInstance();
	DatagramSocket socket = new DatagramSocket(port);
	byte[] buf = new byte[INT];
	DatagramPacket packet = new DatagramPacket(buf, buf.length);
	for (;;) {
		socket.receive(packet);
		byte[] received = new byte[packet.getLength()];
		System.arraycopy(packet.getData(), packet.getOffset(), received, 0, packet.getLength());
		new ReceiverThread(received).start();
	} 
}
 
Example #14
Source Project: jdk8u_jdk   Author: JetBrains   File: SnmpRequestHandler.java    License: GNU General Public License v2.0 6 votes vote down vote up
/**
 * Full constructor
 */
public SnmpRequestHandler(SnmpAdaptorServer server, int id,
                          DatagramSocket s, DatagramPacket p,
                          SnmpMibTree tree, Vector<SnmpMibAgent> m,
                          InetAddressAcl a,
                          SnmpPduFactory factory,
                          SnmpUserDataFactory dataFactory,
                          MBeanServer f, ObjectName n)
{
    super(server, id, f, n);

    // Need a reference on SnmpAdaptorServer for getNext & getBulk,
    // in case of oid equality (mib overlapping).
    //
    adaptor = server;
    socket = s;
    packet = p;
    root= tree;
    mibs = new Vector<>(m);
    subs= new Hashtable<>(mibs.size());
    ipacl = a;
    pduFactory = factory ;
    userDataFactory = dataFactory ;
    //thread.start();
}
 
Example #15
Source Project: openhab1-addons   Author: openhab   File: SoulissT11.java    License: Eclipse Public License 2.0 5 votes vote down vote up
/**
 * Typical T11
 * 
 * @param _datagramsocket
 * @param sSoulissNodeIPAddress
 * @param sSoulissNodeIPAddressOnLAN
 * @param iIDNodo
 * @param iSlot
 * @param sOHType
 */

// Parameters sSoulissNode, iSlot, Type and State are stored in the class
public SoulissT11(DatagramSocket _datagramsocket, String sSoulissNodeIPAddressOnLAN, int iIDNodo, int iSlot,
        String sOHType) {
    super();
    this.setSlot(iSlot);
    this.setSoulissNodeID(iIDNodo);
    this.setType(Constants.Souliss_T11);
    // Note is the name of OH Type
    this.setNote(sOHType);
}
 
Example #16
Source Project: ProjectStudy   Author: dolyw   File: TestOther.java    License: MIT License 5 votes vote down vote up
public static void main(String[] args) throws Exception {
    /**
     * 准备发送端
     * DatagramSocket()
     * 构造一个数据报套接字绑定到本地主机机器上的任何可用的端口。
     */
    DatagramSocket ds = new DatagramSocket();
    /**
     * 准备数据包
     *1、 DatagramPacket(byte[] buf, int length)
     * 构造一个 DatagramPacket length接收数据包的长度
     *2、 String的getBytes()
     * 方法是得到一个操作系统默认的编码格式的字节数组
     *3、 setSocketAddress()
     * 设置SocketAddress(通常是IP地址+端口号)都的远程主机发送数据报。
     * 4、InetSocketAddress(InetAddress addr, int port)
     * 创建一个套接字地址的IP地址和端口号。
     */
    String str = "3,19900000001,20171101155915,1,113.26171805987126,23.239234619127426,0.0,192,82|83,WS001,2020051100011002,13570577458";
    byte[] ch = str.getBytes();
    DatagramPacket dp = new DatagramPacket(ch, ch.length);
    dp.setSocketAddress(new InetSocketAddress("127.0.0.1", 4567));
    // 发送数据
    ds.send(dp);
    // 关闭套接字
    ds.close();
}
 
Example #17
Source Project: wildfly-core   Author: wildfly   File: SocketBindingManagerImpl.java    License: GNU Lesser General Public License v2.1 5 votes vote down vote up
/** {@inheritDoc} */
@Override
public Closeable registerSocket(String name, DatagramSocket socket) {
    final ManagedBinding binding = new WrappedManagedDatagramSocket(name, socket, this);
    registerBinding(binding);
    return binding;
}
 
Example #18
Source Project: jlibs   Author: santhosh-tekuri   File: UDPConnection.java    License: Apache License 2.0 5 votes vote down vote up
protected void init() throws IOException{
    DatagramSocket socket = selectable.socket();
    if(SO_SNDBUF!=null)
        socket.setSendBufferSize(SO_SNDBUF);
    if(SO_RCVBUF!=null)
        socket.setReceiveBufferSize(SO_RCVBUF);
}
 
Example #19
Source Project: mts   Author: ericsson-mts   File: RTCPRawReceiver.java    License: GNU General Public License v3.0 5 votes vote down vote up
public RTCPRawReceiver(DatagramSocket datagramsocket, OverallStats overallstats, StreamSynch streamsynch)
{
    stats = null;
    setSource(new UDPPacketReceiver(datagramsocket, 1000));
    stats = overallstats;
    streamSynch = streamsynch;
}
 
Example #20
Source Project: openhab1-addons   Author: openhab   File: SoulissT12.java    License: Eclipse Public License 2.0 5 votes vote down vote up
/**
 * Send a command as hexadecimal, e.g.:
 * Command recap, using:
 * - 1(hex) as command, toggle the output
 * - 2(hex) as command, the output move to ON the mode is reset
 * - 4(hex) as command, the output move to OFF the mode is reset
 * - 8(hex) as command, the mode is set to AUTO
 */

public SoulissT12(DatagramSocket _datagramsocket, String sSoulissNodeIPAddressOnLAN, int iIDNodo, int iSlot,
        String sOHType) {
    super();
    this.setSlot(iSlot);
    this.setSoulissNodeID(iIDNodo);
    this.setType(Constants.Souliss_T12);
}
 
Example #21
Source Project: Pushjet-Android   Author: Pushjet   File: FileLockCommunicator.java    License: BSD 2-Clause "Simplified" License 5 votes vote down vote up
public FileLockCommunicator(InetAddressFactory addressFactory) {
    this.addressFactory = addressFactory;
    try {
        socket = new DatagramSocket(0, addressFactory.findLocalBindingAddress());
    } catch (SocketException e) {
        throw throwAsUncheckedException(e);
    }
}
 
Example #22
Source Project: big-c   Author: yncxcw   File: SimpleUdpClient.java    License: Apache License 2.0 5 votes vote down vote up
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(500);
    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 {
    // If the client socket was passed in to this UDP client, it's on the
    // caller of this UDP client to close that socket.
    if (this.clientSocket == null) {
      socket.close();
    }
  }
}
 
Example #23
Source Project: javacore   Author: dunwu   File: UDPServer.java    License: Creative Commons Attribution Share Alike 4.0 International 5 votes vote down vote up
public static void main(String[] args) throws Exception { // 所有异常抛出
    String str = "hello World!!!";
    DatagramSocket ds = new DatagramSocket(3000); // 服务端在3000端口上等待服务器发送信息
    DatagramPacket dp =
        new DatagramPacket(str.getBytes(), str.length(), InetAddress.getByName("localhost"), 9000); // 所有的信息使用buf保存
    System.out.println("发送信息。");
    ds.send(dp); // 发送信息出去
    ds.close();
}
 
Example #24
Source Project: gree-remote   Author: tomikaa87   File: AsyncCommunicator.java    License: GNU General Public License v3.0 5 votes vote down vote up
private boolean createSocket() {
    try {
        mSocket = new DatagramSocket(new InetSocketAddress(DATAGRAM_PORT));
    } catch (SocketException e) {
        Log.e(LOG_TAG, "Failed to create socket. Error: " + e.getMessage());
        return false;
    }

    return true;
}
 
Example #25
Source Project: open-rmbt   Author: alladin-IT   File: UdpMultiClientServer.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * 
 * @param socket
 */
public UdpMultiClientServer(DatagramSocket socket) {
	super(DatagramSocket.class);
	this.socket = socket;
	this.port = socket.getLocalPort();
	this.address = socket.getLocalAddress();
	this.isRunning = new AtomicBoolean(false);
	this.name = "UdpMultiClientServer [" + address + ":" + socket.getLocalPort() + "]";
}
 
Example #26
Source Project: jdk8u-jdk   Author: lambdalab-mirror   File: BindFailTest.java    License: GNU General Public License v2.0 5 votes vote down vote up
public static void main(String args[]) throws Exception {
    DatagramSocket s = new DatagramSocket();
    int port = s.getLocalPort();

    for (int i=0; i<32000; i++) {
        try {
            DatagramSocket s2 = new DatagramSocket(port);
        } catch (BindException e) {
        }
    }
}
 
Example #27
Source Project: hadoop   Author: naver   File: RpcProgram.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * Constructor
 * 
 * @param program program name
 * @param host host where the Rpc server program is started
 * @param port port where the Rpc server program is listening to
 * @param progNumber program number as defined in RFC 1050
 * @param lowProgVersion lowest version of the specification supported
 * @param highProgVersion highest version of the specification supported
 * @param registrationSocket if not null, use this socket to register
 *        with portmap daemon
 * @param allowInsecurePorts true to allow client connections from
 *        unprivileged ports, false otherwise
 */
protected RpcProgram(String program, String host, int port, int progNumber,
    int lowProgVersion, int highProgVersion,
    DatagramSocket registrationSocket, boolean allowInsecurePorts) {
  this.program = program;
  this.host = host;
  this.port = port;
  this.progNumber = progNumber;
  this.lowProgVersion = lowProgVersion;
  this.highProgVersion = highProgVersion;
  this.registrationSocket = registrationSocket;
  this.allowInsecurePorts = allowInsecurePorts;
  LOG.info("Will " + (allowInsecurePorts ? "" : "not ") + "accept client "
      + "connections from unprivileged ports");
}
 
Example #28
Source Project: gemfirexd-oss   Author: gemxd   File: JGroupMembershipManager.java    License: Apache License 2.0 5 votes vote down vote up
@Override
public void releaseQuorumChecker(QuorumChecker checker) {
  ((QuorumCheckerImpl)checker).teardown();
  InternalDistributedSystem system = InternalDistributedSystem.getAnyInstance();
  if (system == null || !system.isConnected()) {
    DatagramSocket sock = (DatagramSocket)checker.getMembershipInfo();
    if (sock != null  &&  !sock.isClosed()) {
      sock.close();
    }
  }
}
 
Example #29
Source Project: openjdk-jdk9   Author: AdoptOpenJDK   File: BindFailTest.java    License: GNU General Public License v2.0 5 votes vote down vote up
public static void main(String args[]) throws Exception {
    DatagramSocket s = new DatagramSocket();
    int port = s.getLocalPort();

    for (int i=0; i<32000; i++) {
        try {
            DatagramSocket s2 = new DatagramSocket(port);
        } catch (BindException e) {
        }
    }
}
 
Example #30
Source Project: netty-4.1.22   Author: tianheframe   File: DefaultDatagramChannelConfig.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * Creates a new instance.
 */
public DefaultDatagramChannelConfig(DatagramChannel channel, DatagramSocket javaSocket) {
    super(channel, new FixedRecvByteBufAllocator(2048));
    if (javaSocket == null) {
        throw new NullPointerException("javaSocket");
    }
    this.javaSocket = javaSocket;
}