List of usage examples for java.net DatagramSocket DatagramSocket
public DatagramSocket() throws SocketException
From source file:werewolf_client.Werewolf_Client.java
public void sentToClient(String adr, int p, String message) throws SocketException, UnknownHostException, IOException { DatagramSocket sender = new DatagramSocket(); InetAddress ip = InetAddress.getByName(adr); byte[] sendData = new byte[1024]; sendData = message.getBytes();/* w w w . jav a 2 s .com*/ DatagramPacket sendPacket = new DatagramPacket(sendData, sendData.length, ip, p); double rand = random.nextDouble(); if (rand < 0.85) { sender.send(sendPacket); } sender.close(); }
From source file:org.wso2.esb.integration.common.utils.clients.UDPClient.java
/** * Send UDP message/*from ww w.ja v a 2 s .co m*/ * * @param message message */ public void sendMessage(String message) throws IOException { DatagramSocket clientSocket = null; try { clientSocket = new DatagramSocket(); InetAddress inetAddress = InetAddress.getByName(host); byte[] sendData = message.getBytes(); DatagramPacket sendPacket = new DatagramPacket(sendData, sendData.length, inetAddress, port); clientSocket.send(sendPacket); } finally { if (clientSocket != null) { clientSocket.close(); } } }
From source file:be.error.rpi.adc.ObjectStatusUdpSender.java
public ObjectStatusUdpSender(final String host, int port) throws Exception { this.host = host; this.port = port; this.IPAddress = InetAddress.getByName(host); this.clientSocket = new DatagramSocket(); }
From source file:org.openhim.mediator.engine.connectors.UDPFireForgetConnector.java
private void sendRequest(final MediatorSocketRequest req) { try {/* w w w.jav a 2 s . c o m*/ final DatagramSocket socket = new DatagramSocket(); ExecutionContext ec = getContext().dispatcher(); Future<Boolean> f = future(new Callable<Boolean>() { public Boolean call() throws IOException { InetAddress addr = InetAddress.getByName(req.getHost()); byte[] payload = req.getBody().getBytes(); DatagramPacket packet = new DatagramPacket(payload, payload.length, addr, req.getPort()); socket.send(packet); return Boolean.TRUE; } }, ec); f.onComplete(new OnComplete<Boolean>() { @Override public void onComplete(Throwable throwable, Boolean result) throws Throwable { try { if (throwable != null) { throw throwable; } } catch (Exception ex) { log.error(ex, "Exception"); } finally { IOUtils.closeQuietly(socket); } } }, ec); } catch (Exception ex) { log.error(ex, "Exception"); } }
From source file:CTmousetrack.java
public static void main(String[] args) { String outLoc = new String("." + File.separator + "CTdata"); // Location of the base output data folder; only used when writing out CT data to a local folder String srcName = "CTmousetrack"; // name of the output CT source long blockPts = 10; // points per block flush long sampInterval = 10; // time between sampling updates, msec double trimTime = 0.0; // amount of data to keep (trim time), sec boolean debug = false; // turn on debug? // Specify the CT output connection CTWriteMode writeMode = CTWriteMode.LOCAL; // The selected mode for writing out CT data String serverHost = ""; // Server (FTP or HTTP/S) host:port String serverUser = ""; // Server (FTP or HTTPS) username String serverPassword = ""; // Server (FTP or HTTPS) password // For UDP output mode DatagramSocket udpServerSocket = null; InetAddress udpServerAddress = null; String udpHost = ""; int udpPort = -1; // Concatenate all of the CTWriteMode types String possibleWriteModes = ""; for (CTWriteMode wm : CTWriteMode.values()) { possibleWriteModes = possibleWriteModes + ", " + wm.name(); }// w ww . ja v a 2 s . com // Remove ", " from start of string possibleWriteModes = possibleWriteModes.substring(2); // // Argument processing using Apache Commons CLI // // 1. Setup command line options Options options = new Options(); options.addOption("h", "help", false, "Print this message."); options.addOption(Option.builder("o").argName("base output dir").hasArg().desc( "Base output directory when writing data to local folder (i.e., this is the location of CTdata folder); default = \"" + outLoc + "\".") .build()); options.addOption(Option.builder("s").argName("source name").hasArg() .desc("Name of source to write data to; default = \"" + srcName + "\".").build()); options.addOption(Option.builder("b").argName("points per block").hasArg() .desc("Number of points per block; UDP output mode will use 1 point/block; default = " + Long.toString(blockPts) + ".") .build()); options.addOption(Option.builder("dt").argName("samp interval msec").hasArg() .desc("Sampling period in msec; default = " + Long.toString(sampInterval) + ".").build()); options.addOption(Option.builder("t").argName("trim time sec").hasArg().desc( "Trim (ring-buffer loop) time (sec); this is only used when writing data to local folder; specify 0 for indefinite; default = " + Double.toString(trimTime) + ".") .build()); options.addOption( Option.builder("w").argName("write mode").hasArg() .desc("Type of write connection; one of " + possibleWriteModes + "; all but UDP mode write out to CT; default = " + writeMode.name() + ".") .build()); options.addOption(Option.builder("host").argName("host[:port]").hasArg() .desc("Host:port when writing via FTP, HTTP, HTTPS, UDP.").build()); options.addOption(Option.builder("u").argName("username,password").hasArg() .desc("Comma-delimited username and password when writing to CT via FTP or HTTPS.").build()); options.addOption("x", "debug", false, "Enable CloudTurbine debug output."); // 2. Parse command line options CommandLineParser parser = new DefaultParser(); CommandLine line = null; try { line = parser.parse(options, args); } catch (ParseException exp) { // oops, something went wrong System.err.println("Command line argument parsing failed: " + exp.getMessage()); return; } // 3. Retrieve the command line values if (line.hasOption("help")) { // Display help message and quit HelpFormatter formatter = new HelpFormatter(); formatter.setWidth(120); formatter.printHelp("CTmousetrack", "", options, "NOTE: UDP output is a special non-CT output mode where single x,y points are sent via UDP to the specified host:port."); return; } outLoc = line.getOptionValue("o", outLoc); if (!outLoc.endsWith("\\") && !outLoc.endsWith("/")) { outLoc = outLoc + File.separator; } // Make sure the base output folder location ends in "CTdata" if (!outLoc.endsWith("CTdata\\") && !outLoc.endsWith("CTdata/")) { outLoc = outLoc + "CTdata" + File.separator; } srcName = line.getOptionValue("s", srcName); blockPts = Long.parseLong(line.getOptionValue("b", Long.toString(blockPts))); sampInterval = Long.parseLong(line.getOptionValue("dt", Long.toString(sampInterval))); trimTime = Double.parseDouble(line.getOptionValue("t", Double.toString(trimTime))); // Type of output connection String writeModeStr = line.getOptionValue("w", writeMode.name()); boolean bMatch = false; for (CTWriteMode wm : CTWriteMode.values()) { if (wm.name().toLowerCase().equals(writeModeStr.toLowerCase())) { writeMode = wm; bMatch = true; } } if (!bMatch) { System.err.println("Unrecognized write mode, \"" + writeModeStr + "\"; write mode must be one of " + possibleWriteModes); System.exit(0); } if (writeMode != CTWriteMode.LOCAL) { // User must have specified the host // If FTP or HTTPS, they may also specify username/password serverHost = line.getOptionValue("host", serverHost); if (serverHost.isEmpty()) { System.err.println( "When using write mode \"" + writeModeStr + "\", you must specify the server host."); System.exit(0); } if (writeMode == CTWriteMode.UDP) { // Force blockPts to be 1 blockPts = 1; // User must have specified both host and port int colonIdx = serverHost.indexOf(':'); if ((colonIdx == -1) || (colonIdx >= serverHost.length() - 1)) { System.err.println( "For UDP output mode, both the host and port (<host>:<port>)) must be specified."); System.exit(0); } udpHost = serverHost.substring(0, colonIdx); String udpPortStr = serverHost.substring(colonIdx + 1); try { udpPort = Integer.parseInt(udpPortStr); } catch (NumberFormatException nfe) { System.err.println("The UDP port must be a positive integer."); System.exit(0); } } if ((writeMode == CTWriteMode.FTP) || (writeMode == CTWriteMode.HTTPS)) { String userpassStr = line.getOptionValue("u", ""); if (!userpassStr.isEmpty()) { // This string should be comma-delimited username and password String[] userpassCSV = userpassStr.split(","); if (userpassCSV.length != 2) { System.err.println("When specifying a username and password for write mode \"" + writeModeStr + "\", separate the username and password by a comma."); System.exit(0); } serverUser = userpassCSV[0]; serverPassword = userpassCSV[1]; } } } debug = line.hasOption("debug"); System.err.println("CTmousetrack parameters:"); System.err.println("\toutput mode = " + writeMode.name()); if (writeMode == CTWriteMode.UDP) { System.err.println("\twrite to " + udpHost + ":" + udpPort); } else { System.err.println("\tsource = " + srcName); System.err.println("\ttrim time = " + trimTime + " sec"); } System.err.println("\tpoints per block = " + blockPts); System.err.println("\tsample interval = " + sampInterval + " msec"); try { // // Setup CTwriter or UDP output // CTwriter ctw = null; CTinfo.setDebug(debug); if (writeMode == CTWriteMode.LOCAL) { ctw = new CTwriter(outLoc + srcName, trimTime); System.err.println("\tdata will be written to local folder \"" + outLoc + "\""); } else if (writeMode == CTWriteMode.FTP) { CTftp ctftp = new CTftp(srcName); try { ctftp.login(serverHost, serverUser, serverPassword); } catch (Exception e) { throw new IOException( new String("Error logging into FTP server \"" + serverHost + "\":\n" + e.getMessage())); } ctw = ctftp; // upcast to CTWriter System.err.println("\tdata will be written to FTP server at " + serverHost); } else if (writeMode == CTWriteMode.HTTP) { // Don't send username/pw in HTTP mode since they will be unencrypted CThttp cthttp = new CThttp(srcName, "http://" + serverHost); ctw = cthttp; // upcast to CTWriter System.err.println("\tdata will be written to HTTP server at " + serverHost); } else if (writeMode == CTWriteMode.HTTPS) { CThttp cthttp = new CThttp(srcName, "https://" + serverHost); // Username/pw are optional for HTTPS mode; only use them if username is not empty if (!serverUser.isEmpty()) { try { cthttp.login(serverUser, serverPassword); } catch (Exception e) { throw new IOException(new String( "Error logging into HTTP server \"" + serverHost + "\":\n" + e.getMessage())); } } ctw = cthttp; // upcast to CTWriter System.err.println("\tdata will be written to HTTPS server at " + serverHost); } else if (writeMode == CTWriteMode.UDP) { try { udpServerSocket = new DatagramSocket(); } catch (SocketException se) { System.err.println("Error creating socket for UDP:\n" + se); System.exit(0); } try { udpServerAddress = InetAddress.getByName(udpHost); } catch (UnknownHostException uhe) { System.err.println("Error getting UDP server host address:\n" + uhe); System.exit(0); } } if (writeMode != CTWriteMode.UDP) { ctw.setBlockMode(blockPts > 1, blockPts > 1); ctw.autoFlush(0); // no autoflush ctw.autoSegment(1000); } // screen dims Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize(); double width = screenSize.getWidth(); double height = screenSize.getHeight(); // use Map for consolidated putData Map<String, Object> cmap = new LinkedHashMap<String, Object>(); // loop and write some output for (int i = 0; i < 1000000; i++) { // go until killed long currentTime = System.currentTimeMillis(); Point mousePos = MouseInfo.getPointerInfo().getLocation(); float x_pt = (float) (mousePos.getX() / width); // normalize float y_pt = (float) ((height - mousePos.getY()) / height); // flip Y (so bottom=0) if (writeMode != CTWriteMode.UDP) { // CT output mode ctw.setTime(currentTime); cmap.clear(); cmap.put("x", x_pt); cmap.put("y", y_pt); ctw.putData(cmap); if (((i + 1) % blockPts) == 0) { ctw.flush(); System.err.print("."); } } else { // UDP output mode // We force blockPts to be 1 for UDP output mode, i.e. we "flush" the data every time // Write the following data (21 bytes total): // header = "MOUSE", 5 bytes // current time, long, 8 bytes // 2 floats (x,y) 4 bytes each, 8 bytes int len = 21; ByteBuffer bb = ByteBuffer.allocate(len); String headerStr = "MOUSE"; bb.put(headerStr.getBytes("UTF-8")); bb.putLong(currentTime); bb.putFloat(x_pt); bb.putFloat(y_pt); // Might be able to use the following, but not sure: // byte[] sendData = bb.array(); byte[] sendData = new byte[len]; bb.position(0); bb.get(sendData, 0, len); DatagramPacket sendPacket = new DatagramPacket(sendData, sendData.length, udpServerAddress, udpPort); try { udpServerSocket.send(sendPacket); } catch (IOException e) { System.err.println("Test server caught exception trying to send data to UDP client:\n" + e); } System.err.print("."); } try { Thread.sleep(sampInterval); } catch (Exception e) { } ; } if (writeMode != CTWriteMode.UDP) { ctw.flush(); // wrap up } } catch (Exception e) { System.err.println("CTmousetrack exception: " + e); e.printStackTrace(); } }
From source file:org.eredlab.g4.ccl.net.DefaultDatagramSocketFactory.java
/*** * Creates a DatagramSocket on the local host at the first available port. * <p>//from w ww.j a va2s .c o m * @exception SocketException If the socket could not be created. ***/ public DatagramSocket createDatagramSocket() throws SocketException { return new DatagramSocket(); }
From source file:org.cloudata.core.common.metrics.GangliaContext31.java
public synchronized void startMonitoring() { try {//ww w . j a va2 s . co m hostName = InetAddress.getLocalHost().getCanonicalHostName(); } catch (UnknownHostException e) { } try { datagramSocket = new DatagramSocket(); } catch (SocketException se) { se.printStackTrace(); } super.startMonitoring(); }
From source file:com.googlecode.jmxtrans.connections.DatagramSocketFactory.java
/** * Creates the socket and the writer to go with it. *//*from ww w . j a v a 2s . c o m*/ @Override public DatagramSocket makeObject(SocketAddress socketAddress) throws Exception { DatagramSocket datagramSocket = new DatagramSocket(); datagramSocket.connect(socketAddress); return datagramSocket; }
From source file:ru.asmsoft.p2p.outgoing.OutgoingChannelAdapter.java
@PostConstruct public void init() throws SocketException { clientSocket = new DatagramSocket(); }
From source file:org.apache.camel.component.mina.MinaUdpWithInOutUsingPlainSocketTest.java
private String sendAndReceiveUdpMessages(String input) throws Exception { DatagramSocket socket = new DatagramSocket(); InetAddress address = InetAddress.getByName("127.0.0.1"); byte[] data = input.getBytes(); DatagramPacket packet = new DatagramPacket(data, data.length, address, PORT); LOG.debug("+++ Sending data +++"); socket.send(packet);//from w ww.j av a 2 s . c o m Thread.sleep(1000); byte[] buf = new byte[128]; DatagramPacket receive = new DatagramPacket(buf, buf.length, address, PORT); LOG.debug("+++ Receving data +++"); socket.receive(receive); socket.close(); return new String(receive.getData(), 0, receive.getLength()); }