Example usage for java.net Socket connect

List of usage examples for java.net Socket connect

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Introduction

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

Prototype

public void connect(SocketAddress endpoint, int timeout) throws IOException

Source Link

Document

Connects this socket to the server with a specified timeout value.

Usage

From source file:de.ecclesia.kipeto.RepositoryResolver.java

/**
 * Ermittelt anhand der Default-Repository-URL die IP-Adresse der
 * Netzwerkkarte, die Verbindung zum Repository hat.
 *///from   ww w . java 2s. c  o m
private String determinateLocalIP() throws IOException {
    Socket socket = null;

    try {

        int port;
        String hostname;

        if (isSftp()) {
            port = 22;
            hostname = getHostname();
        } else {
            URL url = new URL(defaultRepositoryUrl);
            port = url.getPort() > -1 ? url.getPort() : url.getDefaultPort();
            hostname = url.getHost();
        }

        log.debug("Determinating local IP-Adress by connect to {}:{}", defaultRepositoryUrl, port);
        InetAddress address = Inet4Address.getByName(hostname);

        socket = new Socket();
        socket.connect(new InetSocketAddress(address, port), 3000);
        InputStream stream = socket.getInputStream();
        InetAddress localAddress = socket.getLocalAddress();
        stream.close();

        String localIp = localAddress.getHostAddress();

        log.info("Local IP-Adress is {}", localIp);

        return localIp;
    } finally {
        if (socket != null) {
            socket.close();
        }
    }
}

From source file:com.cyberway.issue.crawler.fetcher.HeritrixProtocolSocketFactory.java

/**
 * Attempts to get a new socket connection to the given host within the
 * given time limit.//from  w  w w  .ja  va  2s  .  co m
 * <p>
 * This method employs several techniques to circumvent the limitations
 * of older JREs that do not support connect timeout. When running in
 * JRE 1.4 or above reflection is used to call
 * Socket#connect(SocketAddress endpoint, int timeout) method. When
 * executing in older JREs a controller thread is executed. The
 * controller thread attempts to create a new socket within the given
 * limit of time. If socket constructor does not return until the
 * timeout expires, the controller terminates and throws an
 * {@link ConnectTimeoutException}
 * </p>
 *
 * @param host the host name/IP
 * @param port the port on the host
 * @param localAddress the local host name/IP to bind the socket to
 * @param localPort the port on the local machine
 * @param params {@link HttpConnectionParams Http connection parameters}
 *
 * @return Socket a new socket
 *
 * @throws IOException if an I/O error occurs while creating the socket
 * @throws UnknownHostException if the IP address of the host cannot be
 * @throws IOException if an I/O error occurs while creating the socket
 * @throws UnknownHostException if the IP address of the host cannot be
 * determined
 * @throws ConnectTimeoutException if socket cannot be connected within the
 *  given time limit
 *
 * @since 3.0
 */
public Socket createSocket(final String host, final int port, final InetAddress localAddress,
        final int localPort, final HttpConnectionParams params)
        throws IOException, UnknownHostException, ConnectTimeoutException {
    // Below code is from the DefaultSSLProtocolSocketFactory#createSocket
    // method only it has workarounds to deal with pre-1.4 JVMs.  I've
    // cut these out.
    if (params == null) {
        throw new IllegalArgumentException("Parameters may not be null");
    }
    Socket socket = null;
    int timeout = params.getConnectionTimeout();
    if (timeout == 0) {
        socket = createSocket(host, port, localAddress, localPort);
    } else {
        socket = new Socket();
        ServerCache cache = (ServerCache) params.getParameter(FetchHTTP.SERVER_CACHE_KEY);
        InetAddress hostAddress = (cache != null) ? getHostAddress(cache, host) : null;
        InetSocketAddress address = (hostAddress != null) ? new InetSocketAddress(hostAddress, port)
                : new InetSocketAddress(host, port);
        socket.bind(new InetSocketAddress(localAddress, localPort));
        try {
            socket.connect(address, timeout);
        } catch (SocketTimeoutException e) {
            // Add timeout info. to the exception.
            throw new SocketTimeoutException(
                    e.getMessage() + ": timeout set at " + Integer.toString(timeout) + "ms.");
        }
        assert socket.isConnected() : "Socket not connected " + host;
    }
    return socket;
}

From source file:com.t_oster.liblasercut.drivers.LaosCutter.java

@Override
public void sendJob(LaserJob job, ProgressListener pl, List<String> warnings)
        throws IllegalJobException, Exception {
    currentFrequency = -1;//from   w  ww . jav  a 2  s  .c  o m
    currentPower = -1;
    currentSpeed = -1;
    currentFocus = 0;
    currentPurge = false;
    currentVentilation = false;
    pl.progressChanged(this, 0);
    BufferedOutputStream out;
    ByteArrayOutputStream buffer = null;
    pl.taskChanged(this, "checking job");
    checkJob(job);
    job.applyStartPoint();
    if (!useTftp) {
        pl.taskChanged(this, "connecting");
        Socket connection = new Socket();
        connection.connect(new InetSocketAddress(hostname, port), 3000);
        out = new BufferedOutputStream(connection.getOutputStream());
        pl.taskChanged(this, "sending");
    } else {
        buffer = new ByteArrayOutputStream();
        out = new BufferedOutputStream(buffer);
        pl.taskChanged(this, "buffering");
    }
    this.writeJobCode(job, out, pl);
    if (this.isUseTftp()) {
        pl.taskChanged(this, "connecting");
        TFTPClient tftp = new TFTPClient();
        tftp.setDefaultTimeout(5000);
        //open a local UDP socket
        tftp.open();
        pl.taskChanged(this, "sending");
        ByteArrayInputStream bain = new ByteArrayInputStream(buffer.toByteArray());
        tftp.sendFile(job.getName().replace(" ", "") + ".lgc", TFTP.BINARY_MODE, bain, this.getHostname(),
                this.getPort());
        tftp.close();
        bain.close();
        if (debugFilename != null && !"".equals(debugFilename)) {
            pl.taskChanged(this, "writing " + debugFilename);
            FileOutputStream o = new FileOutputStream(new File(debugFilename));
            o.write(buffer.toByteArray());
            o.close();
        }
        pl.taskChanged(this, "sent.");
    }
    pl.progressChanged(this, 100);
}

From source file:org.parosproxy.paros.network.SSLConnector.java

/**
 * Attempts to get a new socket connection to the given host within the
 * given time limit./*from www .j  a v  a 2  s  . c o m*/
 * 
 * @param host
 *            the host name/IP
 * @param port
 *            the port on the host
 * @param localAddress
 *            the local host name/IP to bind the socket to
 * @param localPort
 *            the port on the local machine
 * @param params
 *            {@link HttpConnectionParams Http connection parameters}
 * 
 * @return Socket a new socket
 * 
 * @throws IOException
 *             if an I/O error occurs while creating the socket
 * @throws UnknownHostException
 *             if the IP address of the host cannot be determined
 * @throws    ConnectTimeoutException        
 */
@Override
public Socket createSocket(final String host, final int port, final InetAddress localAddress,
        final int localPort, final HttpConnectionParams params)
        throws IOException, UnknownHostException, ConnectTimeoutException {
    if (params == null) {
        throw new IllegalArgumentException("Parameters may not be null");
    }
    int timeout = params.getConnectionTimeout();
    if (timeout == 0) {
        InetAddress hostAddress = getCachedMisconfiguredHost(host, port);
        if (hostAddress != null) {
            return clientSSLSockFactory.createSocket(hostAddress, port, localAddress, localPort);
        }
        try {
            SSLSocket sslSocket = (SSLSocket) clientSSLSockFactory.createSocket(host, port, localAddress,
                    localPort);
            sslSocket.startHandshake();

            return sslSocket;
        } catch (SSLException e) {
            if (!e.getMessage().contains(CONTENTS_UNRECOGNIZED_NAME_EXCEPTION)) {
                throw e;
            }

            hostAddress = InetAddress.getByName(host);
            cacheMisconfiguredHost(host, port, hostAddress);
            return clientSSLSockFactory.createSocket(hostAddress, port, localAddress, localPort);
        }
    }
    Socket socket = clientSSLSockFactory.createSocket();
    SocketAddress localAddr = new InetSocketAddress(localAddress, localPort);
    socket.bind(localAddr);
    SocketAddress remoteAddr = new InetSocketAddress(host, port);
    socket.connect(remoteAddr, timeout);

    return socket;
}

From source file:org.apache.hadoop.hive.metastore.MetaStoreUtils.java

/**
 * A simple connect test to make sure that the metastore is up
 * @throws Exception//from   w w w.  j  av a  2  s.com
 */
private static void loopUntilHMSReady(int port) throws Exception {
    int retries = 0;
    Exception exc = null;
    while (true) {
        try {
            Socket socket = new Socket();
            socket.connect(new InetSocketAddress(port), 5000);
            socket.close();
            return;
        } catch (Exception e) {
            if (retries++ > 60) { //give up
                exc = e;
                break;
            }
            Thread.sleep(1000);
        }
    }
    // something is preventing metastore from starting
    // print the stack from all threads for debugging purposes
    LOG.error("Unable to connect to metastore server: " + exc.getMessage());
    LOG.info("Printing all thread stack traces for debugging before throwing exception.");
    LOG.info(getAllThreadStacksAsString());
    throw exc;
}

From source file:hornet.framework.clamav.service.ClamAVCheckService.java

/**
 * Ouvre la socket avec dlai max.//w  ww. j  ava2s  .c o m
 *
 * @param command
 *            le type de rponse ClamAV
 * @return null si le dlai imparti  la connexion a t atteint
 * @throws IOException
 *             si erreur autre que timeout atteint
 */
private Socket connect(final TypeResponse command) throws IOException {

    Socket socket = null;
    ClamAVCheckService.LOGGER.debug("Ouverture du socket pour la commande : '{}'", command);

    final InetSocketAddress hostport = new InetSocketAddress(this.clamAVServer, this.clamAVPort);
    socket = new Socket();
    // connexion avec timeout
    try {
        socket.connect(hostport, this.connectTimeout);
    } catch (final ConnectException e) {
        ClamAVCheckService.LOGGER.error("Timeout systme lors de la connexion ", e);
        return null;
    } catch (final SocketTimeoutException e) {
        ClamAVCheckService.LOGGER.error("Timeout atteint lors de la connexion ", e);
        return null;
    }
    return socket;
}

From source file:org.apache.giraph.zk.ZooKeeperManager.java

/**
 * If this task has been selected, online a ZooKeeper server.  Otherwise,
 * wait until this task knows that the ZooKeeper servers have been onlined.
 *//*from  w w  w.j a v a 2s.c om*/
public void onlineZooKeeperServers() {
    Integer taskId = zkServerPortMap.get(myHostname);
    if ((taskId != null) && (taskId.intValue() == taskPartition)) {
        File zkDirFile = new File(this.zkDir);
        try {
            if (LOG.isInfoEnabled()) {
                LOG.info("onlineZooKeeperServers: Trying to delete old " + "directory " + this.zkDir);
            }
            FileUtils.deleteDirectory(zkDirFile);
        } catch (IOException e) {
            LOG.warn("onlineZooKeeperServers: Failed to delete " + "directory " + this.zkDir, e);
        }
        generateZooKeeperConfigFile(new ArrayList<String>(zkServerPortMap.keySet()));
        ProcessBuilder processBuilder = new ProcessBuilder();
        List<String> commandList = Lists.newArrayList();
        String javaHome = System.getProperty("java.home");
        if (javaHome == null) {
            throw new IllegalArgumentException("onlineZooKeeperServers: java.home is not set!");
        }
        commandList.add(javaHome + "/bin/java");
        String zkJavaOptsString = GiraphConstants.ZOOKEEPER_JAVA_OPTS.get(conf);
        String[] zkJavaOptsArray = zkJavaOptsString.split(" ");
        if (zkJavaOptsArray != null) {
            commandList.addAll(Arrays.asList(zkJavaOptsArray));
        }
        commandList.add("-cp");
        Path fullJarPath = new Path(conf.get(GiraphConstants.ZOOKEEPER_JAR));
        commandList.add(fullJarPath.toString());
        commandList.add(QuorumPeerMain.class.getName());
        commandList.add(configFilePath);
        processBuilder.command(commandList);
        File execDirectory = new File(zkDir);
        processBuilder.directory(execDirectory);
        processBuilder.redirectErrorStream(true);
        if (LOG.isInfoEnabled()) {
            LOG.info("onlineZooKeeperServers: Attempting to " + "start ZooKeeper server with command "
                    + commandList + " in directory " + execDirectory.toString());
        }
        try {
            synchronized (this) {
                zkProcess = processBuilder.start();
                zkProcessCollector = new StreamCollector(zkProcess.getInputStream());
                zkProcessCollector.start();
            }
            Runnable runnable = new Runnable() {
                public void run() {
                    LOG.info("run: Shutdown hook started.");
                    synchronized (this) {
                        if (zkProcess != null) {
                            LOG.warn("onlineZooKeeperServers: " + "Forced a shutdown hook kill of the "
                                    + "ZooKeeper process.");
                            zkProcess.destroy();
                            int exitCode = -1;
                            try {
                                exitCode = zkProcess.waitFor();
                            } catch (InterruptedException e) {
                                LOG.warn("run: Couldn't get exit code.");
                            }
                            LOG.info("onlineZooKeeperServers: ZooKeeper process exited " + "with " + exitCode
                                    + " (note that 143 " + "typically means killed).");
                        }
                    }
                }
            };
            Runtime.getRuntime().addShutdownHook(new Thread(runnable));
            LOG.info("onlineZooKeeperServers: Shutdown hook added.");
        } catch (IOException e) {
            LOG.error("onlineZooKeeperServers: Failed to start " + "ZooKeeper process", e);
            throw new RuntimeException(e);
        }

        // Once the server is up and running, notify that this server is up
        // and running by dropping a ready stamp.
        int connectAttempts = 0;
        final int maxConnectAttempts = conf.getZookeeperConnectionAttempts();
        while (connectAttempts < maxConnectAttempts) {
            try {
                if (LOG.isInfoEnabled()) {
                    LOG.info("onlineZooKeeperServers: Connect attempt " + connectAttempts + " of "
                            + maxConnectAttempts + " max trying to connect to " + myHostname + ":" + zkBasePort
                            + " with poll msecs = " + pollMsecs);
                }
                InetSocketAddress zkServerAddress = new InetSocketAddress(myHostname, zkBasePort);
                Socket testServerSock = new Socket();
                testServerSock.connect(zkServerAddress, 5000);
                if (LOG.isInfoEnabled()) {
                    LOG.info("onlineZooKeeperServers: Connected to " + zkServerAddress + "!");
                }
                break;
            } catch (SocketTimeoutException e) {
                LOG.warn("onlineZooKeeperServers: Got " + "SocketTimeoutException", e);
            } catch (ConnectException e) {
                LOG.warn("onlineZooKeeperServers: Got " + "ConnectException", e);
            } catch (IOException e) {
                LOG.warn("onlineZooKeeperServers: Got " + "IOException", e);
            }

            ++connectAttempts;
            try {
                Thread.sleep(pollMsecs);
            } catch (InterruptedException e) {
                LOG.warn("onlineZooKeeperServers: Sleep of " + pollMsecs + " interrupted - " + e.getMessage());
            }
        }
        if (connectAttempts == maxConnectAttempts) {
            throw new IllegalStateException(
                    "onlineZooKeeperServers: Failed to connect in " + connectAttempts + " tries!");
        }
        Path myReadyPath = new Path(serverDirectory, myHostname + HOSTNAME_TASK_SEPARATOR + taskPartition);
        try {
            if (LOG.isInfoEnabled()) {
                LOG.info("onlineZooKeeperServers: Creating my filestamp " + myReadyPath);
            }
            fs.createNewFile(myReadyPath);
        } catch (IOException e) {
            LOG.error("onlineZooKeeperServers: Failed (maybe previous " + "task failed) to create filestamp "
                    + myReadyPath, e);
        }
    } else {
        List<String> foundList = new ArrayList<String>();
        int readyRetrievalAttempt = 0;
        while (true) {
            try {
                FileStatus[] fileStatusArray = fs.listStatus(serverDirectory);
                foundList.clear();
                if ((fileStatusArray != null) && (fileStatusArray.length > 0)) {
                    for (int i = 0; i < fileStatusArray.length; ++i) {
                        String[] hostnameTaskArray = fileStatusArray[i].getPath().getName()
                                .split(HOSTNAME_TASK_SEPARATOR);
                        if (hostnameTaskArray.length != 2) {
                            throw new RuntimeException("getZooKeeperServerList: Task 0 failed " + "to parse "
                                    + fileStatusArray[i].getPath().getName());
                        }
                        foundList.add(hostnameTaskArray[0]);
                    }
                    if (LOG.isInfoEnabled()) {
                        LOG.info("onlineZooKeeperServers: Got " + foundList + " " + foundList.size()
                                + " hosts from " + fileStatusArray.length + " ready servers when " + serverCount
                                + " required (polling period is " + pollMsecs + ") on attempt "
                                + readyRetrievalAttempt);
                    }
                    if (foundList.containsAll(zkServerPortMap.keySet())) {
                        break;
                    }
                } else {
                    if (LOG.isInfoEnabled()) {
                        LOG.info("onlineZooKeeperSErvers: Empty " + "directory " + serverDirectory
                                + ", waiting " + pollMsecs + " msecs.");
                    }
                }
                Thread.sleep(pollMsecs);
                ++readyRetrievalAttempt;
            } catch (IOException e) {
                throw new RuntimeException(e);
            } catch (InterruptedException e) {
                LOG.warn("onlineZooKeeperServers: Strange interrupt from " + e.getMessage(), e);
            }
        }
    }
}

From source file:org.swiftp.server.ProxyConnector.java

/**
 * Connects an outgoing socket to the proxy and authenticates, creating an account if
 * necessary./*from w  w  w  . ja  va  2 s .  com*/
 */
private Socket newAuthedSocket(String hostname, int port) {
    if (hostname == null) {
        myLog.i("newAuthedSocket can't connect to null host");
        return null;
    }
    JSONObject json = new JSONObject();
    // String secret = retrieveSecret();
    Socket socket;
    OutputStream out = null;
    InputStream in = null;

    try {
        myLog.d("Opening proxy connection to " + hostname + ":" + port);
        socket = new Socket();
        socket.connect(new InetSocketAddress(hostname, port), CONNECT_TIMEOUT);
        json.put("android_id", Util.getAndroidId());
        json.put("swiftp_version", Util.getVersion());
        json.put("action", "login");
        out = socket.getOutputStream();
        in = socket.getInputStream();
        int numBytes;

        out.write(json.toString().getBytes(ENCODING));
        myLog.l(Log.DEBUG, "Sent login request");
        // Read and parse the server's response
        byte[] bytes = new byte[IN_BUF_SIZE];
        // Here we assume that the server's response will all be contained in
        // a single read, which may be unsafe for large responses
        numBytes = in.read(bytes);
        if (numBytes == -1) {
            myLog.l(Log.INFO, "Proxy socket closed while waiting for auth response");
            return null;
        } else if (numBytes == 0) {
            myLog.l(Log.INFO, "Short network read waiting for auth, quitting");
            return null;
        }
        json = new JSONObject(new String(bytes, 0, numBytes, ENCODING));
        if (checkAndPrintJsonError(json)) {
            return null;
        }
        myLog.d("newAuthedSocket successful");
        return socket;
    } catch (Exception e) {
        myLog.i("Exception during proxy connection or authentication: " + e);
        return null;
    }
}

From source file:com.cong.chenchong.wifi.manager.ProxyConnector.java

/**
 * Connects an outgoing socket to the proxy and authenticates, creating an account
 * if necessary.//  w ww  .j  av  a2s . com
 */
private Socket newAuthedSocket(String hostname, int port) {
    if (hostname == null) {
        //myLog.i("newAuthedSocket can't connect to null host");
        return null;
    }
    JSONObject json = new JSONObject();
    //String secret = retrieveSecret();
    Socket socket;
    OutputStream out = null;
    InputStream in = null;

    try {
        //myLog.d("Opening proxy connection to " + hostname + ":" + port);
        socket = new Socket();
        socket.connect(new InetSocketAddress(hostname, port), CONNECT_TIMEOUT);
        json.put("android_id", RemoteUtil.getAndroidId());
        json.put("swiftp_version", RemoteUtil.getVersion());
        json.put("action", "login");
        out = socket.getOutputStream();
        in = socket.getInputStream();
        int numBytes;

        out.write(json.toString().getBytes(ENCODING));
        //myLog.l(Log.DEBUG, "Sent login request");
        // Read and parse the server's response
        byte[] bytes = new byte[IN_BUF_SIZE];
        // Here we assume that the server's response will all be contained in
        // a single read, which may be unsafe for large responses
        numBytes = in.read(bytes);
        if (numBytes == -1) {
            //myLog.l(Log.INFO, "Proxy socket closed while waiting for auth response");
            return null;
        } else if (numBytes == 0) {
            //myLog.l(Log.INFO, "Short network read waiting for auth, quitting");
            return null;
        }
        json = new JSONObject(new String(bytes, 0, numBytes, ENCODING));
        if (checkAndPrintJsonError(json)) {
            return null;
        }
        //myLog.d("newAuthedSocket successful");
        return socket;
    } catch (Exception e) {
        //myLog.i("Exception during proxy connection or authentication: " + e);
        return null;
    }
}

From source file:com.cbsb.ftpserv.ProxyConnector.java

/**
 * Connects an outgoing socket to the proxy and authenticates, creating an account
 * if necessary.//from w w w  .  j  ava2  s.  c o  m
 */
private Socket newAuthedSocket(String hostname, int port) {
    if (hostname == null) {
        myLog.i("newAuthedSocket can't connect to null host");
        return null;
    }
    JSONObject json = new JSONObject();
    //String secret = retrieveSecret();
    Socket socket;
    OutputStream out = null;
    InputStream in = null;

    try {
        myLog.d("Opening proxy connection to " + hostname + ":" + port);
        socket = new Socket();
        socket.connect(new InetSocketAddress(hostname, port), CONNECT_TIMEOUT);
        json.put("android_id", Util.getAndroidId());
        json.put("swiftp_version", Util.getVersion());
        json.put("action", "login");
        out = socket.getOutputStream();
        in = socket.getInputStream();
        int numBytes;

        out.write(json.toString().getBytes(ENCODING));
        myLog.l(Log.DEBUG, "Sent login request");
        // Read and parse the server's response
        byte[] bytes = new byte[IN_BUF_SIZE];
        // Here we assume that the server's response will all be contained in
        // a single read, which may be unsafe for large responses
        numBytes = in.read(bytes);
        if (numBytes == -1) {
            myLog.l(Log.INFO, "Proxy socket closed while waiting for auth response");
            return null;
        } else if (numBytes == 0) {
            myLog.l(Log.INFO, "Short network read waiting for auth, quitting");
            return null;
        }
        json = new JSONObject(new String(bytes, 0, numBytes, ENCODING));
        if (checkAndPrintJsonError(json)) {
            return null;
        }
        myLog.d("newAuthedSocket successful");
        return socket;
    } catch (Exception e) {
        myLog.i("Exception during proxy connection or authentication: " + e);
        return null;
    }
}