Example usage for java.net UnknownHostException getMessage

List of usage examples for java.net UnknownHostException getMessage

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Introduction

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

Prototype

public String getMessage()

Source Link

Document

Returns the detail message string of this throwable.

Usage

From source file:org.emoseman.aconf.AutoConfig.java

private static String gethostname() {

    try {/*from  ww  w. j  a v  a 2  s.c  o  m*/
        return InetAddress.getLocalHost().getHostName();
    } catch (UnknownHostException e) {
        log.error(e.getMessage());
    }
    return "failed to resolve hostname";
}

From source file:at.ac.tuwien.dsg.cloud.salsa.engine.utils.SystemFunctions.java

public static boolean isIPv4Address(String address) {
    if (address.isEmpty()) {
        return false;
    }/*from w w  w .ja va2 s  . co m*/
    try {
        Object res = InetAddress.getByName(address);
        return (res.getClass().equals(Inet4Address.class));
    } catch (final UnknownHostException ex) {
        logger.error("Cannot get the host IP address. The captured address is: {}. Error: {}", address,
                ex.getMessage());
        return false;
    }
}

From source file:com.adobe.aem.demomachine.gui.AemDemoUtils.java

public static void antTarget(AemDemo aemDemo, String targetName) {

    String selectedDemoMachine = (String) aemDemo.getListDemoMachines().getSelectedValue();
    if (Arrays.asList(AemDemoConstants.INSTANCE_ACTIONS).contains(targetName)
            && (selectedDemoMachine == null || selectedDemoMachine.toString().length() == 0)) {

        JOptionPane.showMessageDialog(null, "Please select a demo environment before running this command");

    } else {/*from w w w. ja  v a2 s. c om*/

        // New ANT project
        AemDemoProject p = new AemDemoProject(aemDemo);

        if (selectedDemoMachine != null && selectedDemoMachine.length() > 0)
            p.setUserProperty("demo.build", selectedDemoMachine.toString());

        // Make sure host name is there
        try {
            p.setUserProperty("demo.hostname", InetAddress.getLocalHost().getHostName());
        } catch (UnknownHostException ex) {
            logger.error(ex.getMessage());
        }

        p.init();

        ProjectHelper helper = ProjectHelper.getProjectHelper();
        p.addReference("ant.projectHelper", helper);
        helper.parse(p, aemDemo.getBuildFile());

        // Running the target name as a new Thread
        System.out.println("Running ANT target: " + targetName);
        Thread t = new Thread(new AemDemoRunnable(aemDemo, p, targetName));
        t.start();

    }

}

From source file:zz.pseas.ghost.utils.HttpClinetUtil.java

/**
 * @author GS//www. jav a2 s.  co m
 * @param url
 * @param para
 * @param cookie
 * @return
 * @throws IOException
 */
public static String get(String url, String cookie) throws IOException {
    String responseBody = null;
    GetMethod getMethod = new GetMethod(url);
    getMethod.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler()); // ????
    if (!cookie.equals("")) {
        getMethod.setRequestHeader("cookie", cookie);
    }
    try {
        int statusCode = hc.executeMethod(getMethod);
        if (statusCode != HttpStatus.SC_OK) {
            LOG.error("Method failed: " + getMethod.getStatusLine());
        }
        responseBody = getMethod.getResponseBodyAsString();
    } catch (UnknownHostException e) {
        e.printStackTrace();
        LOG.error("??" + e.getMessage());
    } catch (HttpException e) { // ?
        e.printStackTrace();
        LOG.error("?" + e.getMessage());
    } catch (IOException e) { // ?
        e.printStackTrace();
        LOG.error("?" + e.getMessage());
    } finally {
        getMethod.releaseConnection(); // 
    }
    return responseBody;
}

From source file:zz.pseas.ghost.utils.HttpClinetUtil.java

/**
 * @author GS//w  ww.  jav  a 2 s.  c  o  m
 * @param url
 * @param para
 *            Post??
 * @return
 * @throws IOException
 */
public static String post(String url, Map<String, String> para) throws IOException {
    String responseBody = null;
    PostMethod postMethod = new PostMethod(url);
    NameValuePair[] data = new NameValuePair[para.size()];
    int index = 0;
    for (String s : para.keySet()) {
        data[index++] = new NameValuePair(s, para.get(s));
    }
    postMethod.setRequestBody(data); // ?
    try {
        int statusCode = hc.executeMethod(postMethod);
        if (statusCode != HttpStatus.SC_OK) {
            LOG.error("Method failed: " + postMethod.getStatusLine());
        }
        responseBody = postMethod.getResponseBodyAsString();
    } catch (UnknownHostException e) {
        e.printStackTrace();
        LOG.error("??" + e.getMessage());
    } catch (HttpException e) {
        e.printStackTrace();
        LOG.error(e.getMessage());
    } catch (IOException e) {
        e.printStackTrace();
        LOG.error(e.getMessage());
    } finally {
        postMethod.releaseConnection(); // 
    }
    return responseBody;
}

From source file:zz.pseas.ghost.utils.HttpClinetUtil.java

/**
 * @author GS//from   w  w  w. ja  v a2s  . com
 * @param url
 * @param para
 * @param cookie
 * @return
 * @throws IOException
 */
public static String get(String url, Map<String, String> para, String cookie) throws IOException {
    String responseBody = null;
    GetMethod getMethod = new GetMethod(url);
    getMethod.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler()); // ????
    NameValuePair[] data = new NameValuePair[para.size()];
    int index = 0;
    for (String s : para.keySet()) {
        data[index++] = new NameValuePair(s, para.get(s)); // ??
    }
    getMethod.setQueryString(data); // ?
    if (!cookie.equals("")) {
        getMethod.setRequestHeader("cookie", cookie);
    }
    try {
        int statusCode = hc.executeMethod(getMethod);
        if (statusCode != HttpStatus.SC_OK) {
            LOG.error("Method failed: " + getMethod.getStatusLine());
        }
        responseBody = getMethod.getResponseBodyAsString();
    } catch (UnknownHostException e) {
        e.printStackTrace();
        LOG.error("??" + e.getMessage());
    } catch (HttpException e) { // ?
        e.printStackTrace();
        LOG.error("?" + e.getMessage());
    } catch (IOException e) { // ?
        e.printStackTrace();
        LOG.error("?" + e.getMessage());
    } finally {
        getMethod.releaseConnection(); // 
    }
    return responseBody;
}

From source file:org.apache.ws.security.util.UUIDGenerator.java

protected static synchronized void getInitialUUID() {
    if (baseUUID != null) {
        return;//from  w ww . ja  v a 2s .  co  m
    }
    if (myRand == null) {
        myRand = new Random();
    }
    long rand = myRand.nextLong();
    String sid;
    try {
        sid = InetAddress.getLocalHost().toString();
    } catch (UnknownHostException e) {
        sid = Thread.currentThread().getName();
    }
    StringBuffer sb = new StringBuffer();
    sb.append(sid);
    sb.append(":");
    sb.append(Long.toString(rand));
    MessageDigest md5 = null;
    try {
        md5 = MessageDigest.getInstance("MD5");
    } catch (NoSuchAlgorithmException e) {
        if (log.isDebugEnabled()) {
            log.debug(e.getMessage(), e);
        }
        //todo have to be properly handled
    }
    md5.update(sb.toString().getBytes());
    byte[] array = md5.digest();
    StringBuffer sb2 = new StringBuffer();
    for (int j = 0; j < array.length; ++j) {
        int b = array[j] & 0xFF;
        sb2.append(Integer.toHexString(b));
    }
    int begin = myRand.nextInt();
    if (begin < 0)
        begin = begin * -1;
    begin = begin % 8;
    baseUUID = sb2.toString().substring(begin, begin + 18).toUpperCase();
}

From source file:ubicrypt.core.Utils.java

public static String machineName() {
    try {//from   w  w  w .  j av  a  2s  .  c om
        return System.getProperty("user.name") + "/" + InetAddress.getLocalHost().getHostName();
    } catch (final UnknownHostException e) {
        log.error(e.getMessage(), e);
    }
    return System.getProperty("user.name");
}

From source file:com.flexive.shared.stream.FxStreamUtils.java

/**
 * Probe all network interfaces and return the most suited to run a StreamServer on.
 * Preferred are interfaces that are not site local.
 *
 * @return best suited host to run a StreamServer
 * @throws UnknownHostException on errors
 *///ww  w . java 2  s  .c o  m
public static InetAddress probeNetworkInterfaces() throws UnknownHostException {
    try {
        final String forcedAddress = System.getProperty("FxStreamIP");
        if (forcedAddress != null) {
            try {
                InetAddress ad = InetAddress.getByName(forcedAddress);
                LOG.info("Binding [fleXive] streamserver to forced address [" + forcedAddress + "] ...");
                return ad;
            } catch (UnknownHostException e) {
                LOG.error("Forced [fleXive] streamserver bind address [" + forcedAddress + "] can not be used: "
                        + e.getMessage() + " - probing available network interfaces ...");
            }
        }
        Enumeration<NetworkInterface> nifs = NetworkInterface.getNetworkInterfaces();
        NetworkInterface nif;
        InetAddress preferred = null, fallback = null;
        while (nifs.hasMoreElements()) {
            nif = nifs.nextElement();
            if (LOG.isDebugEnabled())
                LOG.debug("Probing " + nif.getDisplayName() + " ...");
            if (nif.getDisplayName().startsWith("vmnet") || nif.getDisplayName().startsWith("vnet"))
                continue;
            Enumeration<InetAddress> inas = nif.getInetAddresses();
            while (inas.hasMoreElements()) {
                InetAddress na = inas.nextElement();
                if (LOG.isDebugEnabled())
                    LOG.debug("Probing " + nif.getDisplayName() + na);
                if (!(na instanceof Inet4Address))
                    continue;
                if (!na.isLoopbackAddress() && na.isReachable(1000)) {
                    if (preferred == null || (preferred.isSiteLocalAddress() && !na.isSiteLocalAddress()))
                        preferred = na;
                }
                if (fallback == null && na.isLoopbackAddress())
                    fallback = na;
            }
        }
        if (LOG.isDebugEnabled())
            LOG.debug("preferred: " + preferred + " fallback: " + fallback);
        if (preferred != null)
            return preferred;
        if (fallback != null)
            return fallback;
        return InetAddress.getLocalHost();
    } catch (Exception e) {
        return InetAddress.getLocalHost();
    }
}

From source file:com.gisgraphy.domain.geoloc.importer.ImporterHelper.java

/**
 * @param address//from   www .ja  v  a 2s .  co m
 *            the address of the file to be downloaded
 * @param localFileName
 *            the local file name (with absolute path)
 */
public static void download(String address, String localFileName) {
    logger.info("download file " + address + " to " + localFileName);
    OutputStream out = null;
    HttpURLConnection conn = null;
    InputStream in = null;
    try {
        URL url = new URL(address);
        out = new BufferedOutputStream(new FileOutputStream(localFileName));
        conn = (HttpURLConnection) url.openConnection();
        if (conn instanceof HttpURLConnection) {

            int responseCode = ((HttpURLConnection) conn).getResponseCode();
            //manage most frequent error code and Gisgraphy specific one
            switch (responseCode) {
            case 509:
                throw new RuntimeException("Sorry, there is too many users connected for " + address
                        + ", this site has limmited resources, please try again later");
            case 500:
                throw new RuntimeException("Sorry, the server return an 500 status code for " + address
                        + ", an internal error has occured");
            case 404:
                throw new RuntimeException("Sorry, the server return an 404 status code for " + address
                        + ", the file probably not exists or the URL is not correct");
            default:
                break;
            }

        }
        in = conn.getInputStream();
        byte[] buffer = new byte[1024];
        int numRead;
        long numWritten = 0;
        while ((numRead = in.read(buffer)) != -1) {
            out.write(buffer, 0, numRead);
            numWritten += numRead;
        }
        logger.info(localFileName + "\t" + numWritten);
    } catch (UnknownHostException e) {
        String errorMessage = "can not download " + address + " to " + localFileName + " : " + e.getMessage()
                + ". if the host exists and is reachable,"
                + " maybe this links can help : http://www.gisgraphy.com/forum/viewtopic.php?f=3&t=64 ";
        logger.warn(errorMessage);
        throw new ImporterException(errorMessage, e);
    } catch (Exception e) {
        logger.warn("can not download " + address + " to " + localFileName + " : " + e.getMessage());
        throw new ImporterException(e);
    } finally {
        try {
            if (in != null) {
                in.close();
            }
            if (out != null) {
                out.flush();
                out.close();
            }
        } catch (IOException ioe) {
            logger.error("cannot close streams");
        }
    }
}