Example usage for java.net Socket Socket

List of usage examples for java.net Socket Socket

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Introduction

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

Prototype

public Socket(InetAddress address, int port) throws IOException

Source Link

Document

Creates a stream socket and connects it to the specified port number at the specified IP address.

Usage

From source file:disko.flow.analyzers.socket.SocketTransmitter.java

public void writeMessage(Message message) {
    log.debug("Establishing connection to " + host + ":" + port);
    while (true) {
        Socket socket = null;/* w w  w .j  a va2 s . c  o  m*/
        ObjectOutputStream out = null;
        try {
            socket = new Socket(host, port);
            out = new ObjectOutputStream(socket.getOutputStream());
            out.writeObject(message);
            out.flush();
            log.debug("Sent " + message);
            return;
        } catch (UnknownHostException e) {
            log.error("Error connecting to " + host + ":" + port, e);
        } catch (IOException e) {
            log.error("Error sending to " + host + ":" + port + " message " + message.getData(), e);
        } finally {
            if (out != null)
                try {
                    out.close();
                } catch (Throwable ignored) {
                    log.error("While closing transmitter output.", ignored);
                }
            if (socket != null)
                try {
                    socket.close();
                } catch (Throwable ignored) {
                    log.error("While closing transmitter socket.", ignored);

                }
        }
        try {
            Thread.sleep(1000);
        } catch (InterruptedException ignored) {
            break;
        }
    }
}

From source file:com.dc.tes.License.java

private static String LicenseServerConnect(Message request) {
    String license = "";
    Socket client = null;//from ww  w  .  j a  v  a 2  s . c om
    try {
        client = new Socket(LICENSE_SERVER_IP, LICENSE_SERVER_PORT);
    } catch (UnknownHostException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        license = "Lisence?";
        log.error(license);
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        license = "Lisence?";
        log.error(license);
    }

    try {
        client.getOutputStream().write(request.Export());
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        license = "?Lisence??";
        log.error(license);
    }
    Message response = null;
    try {
        response = new Message(client.getInputStream());
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        license = "?Lisence??";
        log.error(license);
    }
    if (response.getInteger(MessageItem.LICENSE.AVAILABLE) == 0) {
        license = "License???"
                + response.getString(MessageItem.LICENSE.MSG);
        log.error(license);
    }
    if (request.getInteger(MessageItem.LICENSE.SIGN) == 0) {
        license = response.getString(MessageItem.LICENSE.LICENSEFILE);
    }
    return license;
}

From source file:org.bombusim.networking.NetworkSocketDataStream.java

public NetworkSocketDataStream(String server, int port) throws UnknownHostException, IOException {

    this.host = server;
    this.port = port;

    LimeLog.i("Socket", "Connecting to " + host + ":" + port, null);
    socket = new Socket(server, port);

    //keep-alive packets every 2 hours (by default)
    socket.setKeepAlive(true);//from   w  w w  .  ja  v  a2  s.  c  o  m

    istream = socket.getInputStream();
    ostream = socket.getOutputStream();

}

From source file:fitnesse.slim.SlimClient.java

private boolean tryConnect() {
    try {/*  www  . j av  a 2s . com*/
        client = new Socket(hostName, port);
        return true;
    } catch (IOException e) {
        return false;
    }
}

From source file:com.esri.geoevent.test.tools.RunTcpInBdsOutTest.java

public void send(String server, Integer port, Long numEvents, Integer rate, String data_file) {

    BufferedReader br = null;//from   w w w . ja  v a2 s . co  m
    ArrayList<String> lines = new ArrayList<>();
    LocalDateTime st = null;

    try {

        // Read the file into String array
        br = new BufferedReader(new FileReader(data_file));

        String line = null;
        while ((line = br.readLine()) != null) {
            lines.add(line);
        }

        Socket sckt = new Socket(server, port);
        OutputStream os = sckt.getOutputStream();

        Integer cnt = 0;

        st = LocalDateTime.now();

        Double ns_delay = 1000000000.0 / (double) rate;

        long ns = ns_delay.longValue();
        if (ns < 0) {
            ns = 0;
        }

        int i = 0;
        int j = 0;

        while (i < numEvents) {
            i++;
            j++;
            if (j >= lines.size()) {
                j = 0;
            }
            line = lines.get(j) + "\n";

            final long stime = System.nanoTime();

            long etime = 0;
            do {
                etime = System.nanoTime();
            } while (stime + ns >= etime);

            os.write(line.getBytes());
            os.flush();

        }

        LocalDateTime et = LocalDateTime.now();
        if (st != null) {
            et = LocalDateTime.now();

            Duration delta = Duration.between(st, et);

            Double elapsed_seconds = (double) delta.getSeconds() + delta.getNano() / 1000000000.0;

            send_rate = (double) numEvents / elapsed_seconds;
        }

        sckt.close();
        os = null;

    } catch (Exception e) {
        System.err.println(e.getMessage());
        send_rate = -1.0;
    } finally {
        try {
            br.close();
        } catch (Exception e) {
            //
        }

        this.send_rate = send_rate;

    }

}

From source file:general.Client.java

public void connectToServer() {
    isConnected = false;//  w  w  w . j a  v a  2  s  . c  o  m
    try {
        sock = new Socket("127.0.0.1", DEFAULT_PORT);
        isConnected = true;
    } catch (IOException e) {
        e.printStackTrace();
    }
    if (thread == null) {
        thread = new Thread();
        thread.start();
    }
}

From source file:com.topekalabs.bigmachine.lib.app.ContinuationSerializationTest.java

@Ignore
@Test//from   w w  w  .j  av  a2 s. c  o  m
public void networkSerializationTest() throws Exception {
    Socket outputSocket = null;
    ServerSocket inputSocket = null;

    outputSocket = new Socket("localhost", TEST_SOCKET);
    inputSocket = new ServerSocket(TEST_SOCKET);

    Continuation c = Continuation.startWith(new SimpleContinuationRunnable());

    Kryo kryo = new Kryo();
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    Output output = new Output(bos);
    kryo.writeObject(output, c);
}

From source file:org.mule.module.http.functional.listener.HttpListenerPersistentConnectionsTestCase.java

protected void assertConnectionClosesAfterSend(DynamicPort port, HttpVersion httpVersion) throws IOException {
    Socket socket = new Socket("localhost", port.getNumber());
    sendRequest(socket, httpVersion);/*from  w  w  w.  j a  va2 s  .c om*/
    assertResponse(getResponse(socket), true);

    sendRequest(socket, httpVersion);
    assertResponse(getResponse(socket), false);

    socket.close();
}

From source file:SimpleFTP.java

/**
 * Connects to an FTP server and logs in with the supplied username and
 * password./*from   w  w  w  . ja  v  a  2s.c om*/
 */
public synchronized void connect(String host, int port, String user, String pass) throws IOException {
    if (socket != null) {
        throw new IOException("SimpleFTP is already connected. Disconnect first.");
    }
    socket = new Socket(host, port);
    reader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
    writer = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));

    String response = readLine();
    if (!response.startsWith("220 ")) {
        throw new IOException(
                "SimpleFTP received an unknown response when connecting to the FTP server: " + response);
    }

    sendLine("USER " + user);

    response = readLine();
    if (!response.startsWith("331 ")) {
        throw new IOException("SimpleFTP received an unknown response after sending the user: " + response);
    }

    sendLine("PASS " + pass);

    response = readLine();
    if (!response.startsWith("230 ")) {
        throw new IOException("SimpleFTP was unable to log in with the supplied password: " + response);
    }

    // Now logged in.
}

From source file:com.tomcat.monitor.zabbix.ZabbixSender.java

public void send(final String zabbixServer, final int zabbixPort, int zabbixTimeout, final String host,
        final String key, final String value) throws IOException {

    final byte[] response = new byte[1024];

    final long start = System.currentTimeMillis();

    final int TIMEOUT = zabbixTimeout * 1000;

    final StringBuilder message = new StringBuilder("<req><host>");
    message.append(new String(Base64.encodeBase64(host.getBytes())));
    message.append("</host><key>");
    message.append(new String(Base64.encodeBase64(key.getBytes())));
    message.append("</key><data>");
    message.append(new String(Base64.encodeBase64(value.getBytes())));
    message.append("</data></req>");

    if (log.isDebugEnabled()) {
        log.debug("sending " + message);
    }/*from   www . java 2  s.  com*/

    Socket zabbix = null;
    OutputStreamWriter out = null;
    InputStream in = null;
    try {
        zabbix = new Socket(zabbixServer, zabbixPort);
        zabbix.setSoTimeout(TIMEOUT);

        out = new OutputStreamWriter(zabbix.getOutputStream());
        out.write(message.toString());
        out.flush();

        in = zabbix.getInputStream();
        final int read = in.read(response);
        if (log.isDebugEnabled()) {
            log.debug("received " + new String(response));
        }
        if (read != 2 || response[0] != 'O' || response[1] != 'K') {
            log.warn("received unexpected response '" + new String(response) + "' for key '" + key + "'");
        }
    } finally {
        if (in != null) {
            in.close();
        }
        if (out != null) {
            out.close();
        }
        if (zabbix != null) {
            zabbix.close();
        }
    }
    log.info("send() " + (System.currentTimeMillis() - start) + " ms");
}