Example usage for java.net UnknownHostException getMessage

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:com.indeed.imhotep.builder.tsv.KerberosUtils.java

@Nullable
private static String getCanonicalHostNameSafe() {
    try {//  w  w  w. j  av  a 2 s  . c  om
        return InetAddress.getLocalHost().getCanonicalHostName();
    } catch (UnknownHostException e) {
        log.error("Unable to lookup hostname of machine " + e.getMessage());
        return null;
    }
}

From source file:org.squidy.manager.util.CommanderUtils.java

/**
 * @param host// w w  w  . ja v  a  2  s  . c  om
 * @param port
 * @return
 */
public static ControlClient getCommanderClient(String host, int port) {

    InetAddress address = null;
    try {
        address = InetAddress.getByName(host);
    } catch (UnknownHostException e) {
        if (LOG.isErrorEnabled()) {
            LOG.error(e.getMessage(), e);
        }
    }

    try {
        return new ControlClient(address, port);
    } catch (IOException e) {
        if (LOG.isErrorEnabled()) {
            LOG.error(e.getMessage(), e);
        }
        return null;
    }
}

From source file:com.axibase.tsd.collector.AtsdUtil.java

public static String resolveHostname() {
    try {//  w  w  w .  jav  a2  s .  c o m
        return InetAddress.getLocalHost().getHostName();
    } catch (UnknownHostException e) {
        AtsdUtil.logInfo("Could not resolve hostname. " + e.getMessage());
        return DEFAULT_ENTITY;
    }
}

From source file:org.encuestame.core.util.InternetUtils.java

/**
 * Ping hostname./*  w  ww  .j  a v a 2  s.  c  o m*/
 * @param domain
 * @return
 */
public static boolean hostReachable(final String domain) {
    InetAddress host;
    boolean reachable = false;
    try {
        // Try to reach the specified address within the timeout
        // periode. If during this periode the address cannot be
        // reach then the method returns false.
        host = InetAddress.getByName(domain);
        reachable = host.isReachable(InternetUtils.TIMEOUT);
    } catch (UnknownHostException e) {
        log.error("hostReachable " + e.getMessage());
    } catch (IOException e) {
        log.error("hostReachable " + e.getMessage());
    }
    return reachable;
}

From source file:com.notonthehighstreet.ratel.internal.model.Server.java

public static Server toServer(final String environment) {
    String hostName;/*from w  w  w.  j  a v  a 2s  .  c o  m*/
    try {
        hostName = InetAddress.getLocalHost().getHostName();
    } catch (UnknownHostException e) {
        LOG.log(Level.WARNING, "Unable to work out host name for localhost!", e);
        hostName = "Unable to work out host name " + e.getMessage();
    }
    return new Server(environment, hostName, ProjectRoot.projectRoot());
}

From source file:org.ofbiz.passport.util.PassportUtil.java

public static String getEnvPrefixByHost(HttpServletRequest request) {
    String prefix = "test";
    try {//from  w  w  w  . ja v a 2s. c om
        InetAddress[] addresses = InetAddress.getAllByName(request.getServerName());
        for (InetAddress address : addresses) {
            if (address.isAnyLocalAddress() || address.isLinkLocalAddress() || address.isLoopbackAddress()) {
                return prefix;
            }
        }
        prefix = "live";
    } catch (UnknownHostException e) {
        Debug.logError(e.getMessage(), module);
    }
    return prefix;
}

From source file:org.picketlink.test.integration.federation.saml.util.JBoss7Util.java

/**
 * Set ${hostname} variable from system property: node0
 *
 * @return Value of hostname/*from  w  w w . j a  v a  2 s .c o  m*/
 */
public static String getHostname() {
    String hostname = System.getProperty("node0");

    //expand possible IPv6 address
    try {
        hostname = NetworkUtils.formatPossibleIpv6Address(InetAddress.getByName(hostname).getHostAddress());
    } catch (UnknownHostException ex) {
        String message = "Cannot resolve host address: " + hostname + " , error : " + ex.getMessage();
        throw new RuntimeException(ex);
    }

    if ("127.0.0.1".equals(hostname)) {
        return "localhost";
    }

    return hostname;
}

From source file:org.apache.hadoop.hbase.AuthUtil.java

/**
 * Checks if security is enabled and if so, launches chore for refreshing kerberos ticket.
 *///from  ww  w .ja v  a  2 s.c o m
public static ScheduledChore getAuthChore(Configuration conf) throws IOException {
    UserProvider userProvider = UserProvider.instantiate(conf);
    // login the principal (if using secure Hadoop)
    boolean securityEnabled = userProvider.isHadoopSecurityEnabled() && userProvider.isHBaseSecurityEnabled();
    if (!securityEnabled)
        return null;
    String host = null;
    try {
        host = Strings.domainNamePointerToHostName(
                DNS.getDefaultHost(conf.get("hbase.client.dns.interface", "default"),
                        conf.get("hbase.client.dns.nameserver", "default")));
        userProvider.login("hbase.client.keytab.file", "hbase.client.kerberos.principal", host);
    } catch (UnknownHostException e) {
        LOG.error("Error resolving host name: " + e.getMessage(), e);
        throw e;
    } catch (IOException e) {
        LOG.error("Error while trying to perform the initial login: " + e.getMessage(), e);
        throw e;
    }

    final UserGroupInformation ugi = userProvider.getCurrent().getUGI();
    Stoppable stoppable = new Stoppable() {
        private volatile boolean isStopped = false;

        @Override
        public void stop(String why) {
            isStopped = true;
        }

        @Override
        public boolean isStopped() {
            return isStopped;
        }
    };

    // if you're in debug mode this is useful to avoid getting spammed by the getTGT()
    // you can increase this, keeping in mind that the default refresh window is 0.8
    // e.g. 5min tgt * 0.8 = 4min refresh so interval is better be way less than 1min
    final int CHECK_TGT_INTERVAL = 30 * 1000; // 30sec

    ScheduledChore refreshCredentials = new ScheduledChore("RefreshCredentials", stoppable,
            CHECK_TGT_INTERVAL) {
        @Override
        protected void chore() {
            try {
                ugi.checkTGTAndReloginFromKeytab();
            } catch (IOException e) {
                LOG.error("Got exception while trying to refresh credentials: " + e.getMessage(), e);
            }
        }
    };

    return refreshCredentials;
}

From source file:com.stacksync.desktop.Stacksync.java

private static boolean isAlreadyRunning() {
    try {/*from ww  w . ja  v a2 s .c  om*/
        Socket clientSocket = new Socket("localhost", Constants.COMMANDSERVER_PORT);
        clientSocket.close();
        return true;
    } catch (UnknownHostException ex) {
        System.out.println("Error not found localhost. Exception: " + ex.getMessage());
        return false;
    } catch (IOException ex) {
        //System.out.println("Error with socket. Exception: " + ex.getMessage());
        return false;
    }
}

From source file:net.ftb.util.AppUtils.java

/**
 * Reads XML from a stream//from   w ww . j  a  v a  2s .  co  m
 * @param stream the stream to read the document from
 * @return The document
 * @throws IOException, SAXException if an error occurs when reading from the stream
 */
public static Document getXML(InputStream stream) throws IOException, SAXException {
    DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
    try {
        return docFactory.newDocumentBuilder().parse(stream);
    } catch (ParserConfigurationException ignored) {
        Logger.logError(ignored.getMessage(), ignored);
    } catch (UnknownHostException e) {
        Logger.logError(e.getMessage(), e);
    }
    return null;
}