Example usage for java.net Socket Socket

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:edu.umass.cs.msocket.common.policies.GeoLoadProxyPolicy.java

/**
 * @throws Exception if a GNS error occurs
 * @see edu.umass.cs.msocket.common.policies.ProxySelectionPolicy#getNewProxy()
 *//*  w w  w. ja va 2  s .co  m*/
@Override
public List<InetSocketAddress> getNewProxy() throws Exception {
    // Lookup for active location service GUIDs
    final UniversalGnsClient gnsClient = gnsCredentials.getGnsClient();
    final GuidEntry guidEntry = gnsCredentials.getGuidEntry();
    JSONArray guids;
    try {
        guids = gnsClient.fieldRead(proxyGroupName, GnsConstants.ACTIVE_LOCATION_FIELD, guidEntry);
    } catch (Exception e) {
        throw new GnsException("Could not find active location services (" + e + ")");
    }

    // Try every location proxy in the list until one works
    for (int i = 0; i < guids.length(); i++) {
        // Retrieve the location service IP and connect to it
        String locationGuid = guids.getString(i);
        String locationIP = gnsClient.fieldRead(locationGuid, GnsConstants.LOCATION_SERVICE_IP, guidEntry)
                .getString(0);
        logger.fine("Contacting location service " + locationIP + " to request " + numProxies + " proxies");

        // Location IP is stored as host:port
        StringTokenizer st = new StringTokenizer(locationIP, ":");
        try {
            // Protocol is send the number of desired proxies and receive strings
            // containing proxy IP:port
            Socket s = new Socket(st.nextToken(), Integer.parseInt(st.nextToken()));
            ObjectOutputStream oos = new ObjectOutputStream(s.getOutputStream());
            ObjectInputStream ois = new ObjectInputStream(s.getInputStream());
            oos.writeInt(numProxies);
            oos.flush();
            List<InetSocketAddress> result = new LinkedList<InetSocketAddress>();
            while (!s.isClosed() && result.size() < numProxies) {
                String proxyIP = ois.readUTF();
                StringTokenizer stp = new StringTokenizer(proxyIP, ":");
                result.add(new InetSocketAddress(stp.nextToken(), Integer.parseInt(stp.nextToken())));
            }
            if (!s.isClosed()) // We receive all the proxies we need, just close the
                               // socket
                s.close();
            return result;
        } catch (Exception e) {
            logger.info("Failed to obtain proxy from location service" + locationIP + " (" + e + ")");
        }
    }

    throw new GnsException("Could not find any location service to provide a geolocated proxy");
}

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From source file:SocketApplet.java

/** Initialize the GUI nicely. */
public void init() {
    Label aLabel;//w  ww.j  a v  a2 s .c  o  m

    setLayout(new GridBagLayout());
    int LOGO_COL = 1;
    int LABEL_COL = 2;
    int TEXT_COL = 3;
    int BUTTON_COL = 1;
    GridBagConstraints gbc = new GridBagConstraints();
    gbc.weightx = 100.0;
    gbc.weighty = 100.0;

    gbc.gridx = LABEL_COL;
    gbc.gridy = 0;
    gbc.anchor = GridBagConstraints.EAST;
    add(aLabel = new Label("Name:", Label.CENTER), gbc);
    gbc.anchor = GridBagConstraints.CENTER;
    gbc.gridx = TEXT_COL;
    gbc.gridy = 0;
    add(nameTF = new TextField(10), gbc);

    gbc.gridx = LABEL_COL;
    gbc.gridy = 1;
    gbc.anchor = GridBagConstraints.EAST;
    add(aLabel = new Label("Password:", Label.CENTER), gbc);
    gbc.anchor = GridBagConstraints.CENTER;
    gbc.gridx = TEXT_COL;
    gbc.gridy = 1;
    add(passTF = new TextField(10), gbc);
    passTF.setEchoChar('*');

    gbc.gridx = LABEL_COL;
    gbc.gridy = 2;
    gbc.anchor = GridBagConstraints.EAST;
    add(aLabel = new Label("Domain:", Label.CENTER), gbc);
    gbc.anchor = GridBagConstraints.CENTER;
    gbc.gridx = TEXT_COL;
    gbc.gridy = 2;
    add(domainTF = new TextField(10), gbc);
    sendButton = new Button("Send data");
    gbc.gridx = BUTTON_COL;
    gbc.gridy = 3;
    gbc.gridwidth = 3;
    add(sendButton, gbc);

    whence = getCodeBase();

    // Now the action begins...
    sendButton.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent evt) {
            String name = nameTF.getText();
            if (name.length() == 0) {
                showStatus("Name required");
                return;
            }
            String domain = domainTF.getText();
            if (domain.length() == 0) {
                showStatus("Domain required");
                return;
            }
            showStatus("Connecting to host " + whence.getHost() + " as " + nameTF.getText());

            try {
                Socket s = new Socket(getCodeBase().getHost(), 3333);
                PrintWriter pf = new PrintWriter(s.getOutputStream(), true);
                // send login name
                pf.println(nameTF.getText());
                // passwd
                pf.println(passTF.getText());
                // and domain
                pf.println(domainTF.getText());

                BufferedReader is = new BufferedReader(new InputStreamReader(s.getInputStream()));
                String response = is.readLine();
                showStatus(response);
            } catch (IOException e) {
                showStatus("ERROR: " + e.getMessage());
            }
        }
    });
}

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From source file:com.liferay.sync.engine.util.SyncSystemTestUtil.java

protected static boolean isPortInUse(int port) {
    try {//from   ww  w  .j a va  2 s  .  c  om
        Socket socket = new Socket("localhost", port);

        socket.close();

        return true;
    } catch (IOException ioe) {
        return false;
    }
}

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From source file:org.kjkoster.zapcat.test.ZabbixAgentProtocolTest.java

/**
 * Test the we can ping the agent./*from w  w  w .  j  a  v a  2  s .c  o  m*/
 * 
 * @throws Exception
 *             When the test failed.
 */
@Test
public void testPing() throws Exception {
    final Agent agent = new org.kjkoster.zapcat.zabbix.ZabbixAgent();
    // give the agent some time to open the port
    Thread.sleep(100);
    final Socket socket = new Socket(InetAddress.getLocalHost(),
            org.kjkoster.zapcat.zabbix.ZabbixAgent.DEFAULT_PORT);

    final Writer out = new OutputStreamWriter(socket.getOutputStream());
    out.write("agent.ping\n");
    out.flush();

    final InputStream in = socket.getInputStream();
    final byte[] buffer = new byte[1024];
    final int read = in.read(buffer);
    assertEquals(14, read);

    assertEquals('Z', buffer[0]);
    assertEquals('B', buffer[1]);
    assertEquals('X', buffer[2]);
    assertEquals('D', buffer[3]);

    assertEquals('1', buffer[13]);

    // we'll take the rest for granted...

    socket.close();
    agent.stop();
}

---

From source file:de.xwic.appkit.core.cluster.impl.OutboundChannel.java

/**
 * @throws IOException // w  w w .  j av  a  2s. c o  m
 * @throws UnknownHostException 
 * 
 */
private void openConnection() throws UnknownHostException, IOException {

    socket = new Socket(nodeAddress.getHostname(), nodeAddress.getPort());

    //      socket.setSoTimeout(SOCKET_TIMEOUT);

    out = new ObjectOutputStream(socket.getOutputStream());
    in = new ObjectInputStream(socket.getInputStream());

}

---

From source file:com.googlecode.jmxtrans.model.output.SensuWriter.java

private void writeToSensu(Server server, Query query, List<Result> results) {
    try (Socket socketConnection = new Socket(host, 3030)) {
        serialize(server, query, results, socketConnection.getOutputStream());
    } catch (Exception e) {
        logger.warn("Failure to send result to Sensu server '{}'", host, e);
    }// w ww  .j  a v a2 s  . c o  m
}

---

From source file:com.apporiented.hermesftp.client.FtpTestClient.java

/**
 * Opening a connection to the FTP server.
 * //from   ww  w. j ava  2s.  co m
 * @param svr The server name. If null is passed, the local machine is used.
 * @param user The user name.
 * @param pass The user password.
 * @param port FTP port.
 * @throws IOException Error on connection.
 */
public void openConnection(String svr, String user, String pass, int port) throws IOException {
    this.server = svr;

    if (server == null || server.startsWith("127.0.0.")) {
        this.server = NetUtils.getMachineAddress(true).getHostAddress();
    }
    serverSocket = new Socket(server, port);
    in = new BufferedReader(new InputStreamReader(serverSocket.getInputStream()));
    out = new PrintWriter(serverSocket.getOutputStream(), true);
    getResponse();
    sendAndReceive("USER " + user);
    sendAndReceive("PASS " + pass);
}

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From source file:UseFactory.java

public Socket createSocket(String host, int port) throws IOException, UnknownHostException {

        System.out.println("[creating a custom socket (method 1)]");
        return new Socket(host, port);
    }//from w w  w .j  ava 2s  .  com

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From source file:com.byteatebit.nbserver.simple.TestSimpleNbServer.java

@Test
public void testMultipleMessages() throws IOException {
    SimpleNbServer simpleNbServer = SimpleNbServer.Builder.builder()
            .withConfig(//from  www .ja v a  2s .  com
                    SimpleNbServerConfig.builder().withListenAddress("localhost").withListenPort(1111).build())
            .withConnectorFactory(TcpConnectorFactory.Builder.builder()
                    .withConnectedSocketTask(new TcpConnectTestHandler()).build())
            .build();
    simpleNbServer.start();
    String message1 = "this is message1";
    String message2 = "this is message2";
    try {
        Socket socket = new Socket("localhost", 1111);
        OutputStream out = socket.getOutputStream();
        InputStream in = socket.getInputStream();
        BufferedReader reader = new BufferedReader(new InputStreamReader(in, StandardCharsets.UTF_8));

        // message1
        out.write((message1 + '\n' + message2 + '\n').getBytes(StandardCharsets.UTF_8));
        String messageRead1 = reader.readLine();
        Assert.assertEquals(message1, messageRead1);
        String messageRead2 = reader.readLine();
        Assert.assertEquals(message2, messageRead2);

        // quit
        out.write("quit\n".getBytes(StandardCharsets.UTF_8));
        String finalMessage = reader.readLine();
        Assert.assertNull(finalMessage);
    } finally {
        simpleNbServer.shutdown();
    }
}

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From source file:com.atlassian.theplugin.commons.ssl.PluginSSLProtocolSocketFactory.java

/**
 * Copied from AXIS source code,//from w  w w  . j  a v a  2  s  .  co  m
 * original @author Davanum Srinivas (dims@yahoo.com)
 * THIS CODE STILL HAS DEPENDENCIES ON sun.* and com.sun.*
 */
public Socket create(final String host, final int port, final StringBuffer otherHeaders,
        final BooleanHolder useFullURL) throws Exception {

    PluginConfiguration config = ConfigurationFactory.getConfiguration();

    int sslPort = port;
    if (port == -1) {
        sslPort = EasySSLProtocolSocketFactory.SSL_PORT;
    }

    boolean hostInNonProxyList = false;
    TransportClientProperties tcp = TransportClientPropertiesFactory.create("https");

    if (tcp instanceof DefaultHTTPSTransportClientProperties) {
        hostInNonProxyList = ((DefaultHTTPSTransportClientProperties) tcp).getNonProxyHosts().contains("host");
    }
    //boolean hostInNonProxyList = super.isHostInNonPxyList(host, tcp.getNonProxyHosts());

    Socket sslSocket;
    if (!config.getGeneralConfigurationData().getUseIdeaProxySettings() || hostInNonProxyList
            || tcp.getProxyHost().length() == 0) {
        // direct SSL connection
        sslSocket = super.createSocket(host, sslPort);
    } else {
        int tunnelPort = (tcp.getProxyPort().length() != 0) ? Integer.parseInt(tcp.getProxyPort())
                : DEFAULT_PROXY_PORT;
        if (tunnelPort < 0) {
            tunnelPort = DEFAULT_PROXY_PORT;
        }

        // Create the regular socket connection to the proxy
        //Socket l = new Socket(new InetAddressImpl(tcp.getProxyHost()), tunnelPort);
        Socket tunnel = new Socket(InetAddress.getByName(tcp.getProxyHost()), tunnelPort);

        // The tunnel handshake method (condensed and made reflexive)
        OutputStream tunnelOutputStream = tunnel.getOutputStream();
        PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(tunnelOutputStream)));

        // More secure version... engage later?
        // PasswordAuthentication pa =
        // Authenticator.requestPasswordAuthentication(
        // InetAddress.getByName(tunnelHost),
        // tunnelPort, "SOCK", "Proxy","HTTP");
        // if(pa == null){
        // printDebug("No Authenticator set.");
        // }else{
        // printDebug("Using Authenticator.");
        // tunnelUser = pa.getUserName();
        // tunnelPassword = new String(pa.getPassword());
        // }
        out.print("CONNECT " + host + ":" + sslPort + " HTTP/1.0\r\n" + "User-Agent: AxisClient");
        if (tcp.getProxyUser().length() != 0 && tcp.getProxyPassword().length() != 0) {

            // add basic authentication header for the proxy
            String encodedPassword = XMLUtils
                    .base64encode((tcp.getProxyUser() + ":" + tcp.getProxyPassword()).getBytes());

            out.print("\nProxy-Authorization: Basic " + encodedPassword);
        }
        out.print("\nContent-Length: 0");
        out.print("\nPragma: no-cache");
        out.print("\r\n\r\n");
        out.flush();
        InputStream tunnelInputStream = tunnel.getInputStream();

        if (logger != null) {
            logger.debug(
                    Messages.getMessage("isNull00", "tunnelInputStream", "" + (tunnelInputStream == null)));
        }

        String replyStr = "";

        // Make sure to read all the response from the proxy to prevent SSL negotiation failure
        // Response message terminated by two sequential newlines
        int newlinesSeen = 0;
        boolean headerDone = false; /* Done on first newline */

        while (newlinesSeen < 2) {
            int i = tunnelInputStream.read();

            if (i < 0) {
                throw new IOException("Unexpected EOF from proxy");
            }
            if (i == '\n') {
                headerDone = true;
                ++newlinesSeen;
            } else if (i != '\r') {
                newlinesSeen = 0;
                if (!headerDone) {
                    replyStr += String.valueOf((char) i);
                }
            }
        }
        if (!StringUtils.startsWithIgnoreWhitespaces("HTTP/1.0 200", replyStr)
                && !StringUtils.startsWithIgnoreWhitespaces("HTTP/1.1 200", replyStr)) {
            throw new IOException(Messages.getMessage("cantTunnel00",
                    new String[] { tcp.getProxyHost(), "" + tunnelPort, replyStr }));
        }

        // End of condensed reflective tunnel handshake method
        sslSocket = super.createSocket(tunnel, host, port, true);

        if (logger != null) {
            logger.debug(Messages.getMessage("setupTunnel00", tcp.getProxyHost(), "" + tunnelPort));
        }

    }

    ((SSLSocket) sslSocket).startHandshake();
    if (logger != null) {
        logger.debug(Messages.getMessage("createdSSL00"));
    }
    return sslSocket;
}

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