Example usage for java.net UnknownHostException printStackTrace

Introduction

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

Prototype

public void printStackTrace() 

Source Link

Document

Prints this throwable and its backtrace to the standard error stream.

Usage

From source file:Main.java

public static Map<String, Object> getDomainIp(String _dormain) {
    Map<String, Object> map = new HashMap<String, Object>();
    long start = 0;
    long end = 0;
    String time = null;/*from   ww w  .ja  v a  2s  .co m*/
    InetAddress[] remoteInet = null;
    try {
        start = System.currentTimeMillis();
        remoteInet = InetAddress.getAllByName(_dormain);
        if (remoteInet != null) {
            end = System.currentTimeMillis();
            time = (end - start) + "";
        }
    } catch (UnknownHostException e) {
        end = System.currentTimeMillis();
        time = (end - start) + "";
        remoteInet = null;
        e.printStackTrace();
    } finally {
        map.put("remoteInet", remoteInet);
        map.put("useTime", time);
    }
    return map;
}

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From source file:com.savoycraft.util.TimeUtil.java

/**
 * Queries a NIST time server to get a difference between its time and the
 * local system time.//  ww  w  . j  a  va 2  s. co m
 */
public static void calibrate() {
    if (System.currentTimeMillis() < lastTimeRequest + 5000 || calibrated) {
        return;
    }

    NTPUDPClient timeClient = new NTPUDPClient();
    InetAddress inetAddress = null;
    try {
        inetAddress = InetAddress.getByName(TIME_SERVER);
    } catch (UnknownHostException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        return;
    }
    TimeInfo timeInfo = null;
    try {
        timeInfo = timeClient.getTime(inetAddress);
    } catch (IOException e) {
        System.err.println("SavoyCraft could not contact time.nist.gov.");
        e.printStackTrace();
        return;
    }
    long returnTime = timeInfo.getReturnTime();
    calibration = System.currentTimeMillis() - returnTime;
    System.out.println(calibration);
    // Date time = new Date(returnTime);
    // System.out.println("Time from " + TIME_SERVER + ": " + time);

    lastTimeRequest = System.currentTimeMillis();

    calibrated = true;
}

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From source file:com.singular.utils.FileUtils.java

public static String getCurrentHost() {
    String hostname = "localhost";
    try {/*www . ja  va  2 s . c  o  m*/
        hostname = InetAddress.getLocalHost().getHostName();
    } catch (UnknownHostException e) {
        e.printStackTrace();
    }
    return hostname;
}

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From source file:com.vinexs.tool.NetworkManager.java

public static String getLocalIPAddress() {
    try {//w  w  w  .  j  av a2s. c  o  m
        InetAddress meHost = InetAddress.getLocalHost();
        return meHost.getHostAddress();
    } catch (UnknownHostException e) {
        e.printStackTrace();
        return "127.0.0.1";
    }
}

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From source file:net.unicon.academus.apps.download.DownloadServiceFileSystem.java

/**
 * Generate a unique host identifier using the host's IP address.
 * @return unique host identifier/*from   w  ww .  j a v  a2 s  . co m*/
 */
private static long generateHostIdentifier() {
    long hostId;
    InetAddress lhost = null;
    try {
        lhost = InetAddress.getLocalHost();
        byte[] addr = lhost.getAddress();
        hostId = ((addr[0] & 0xff) << 24) + ((addr[1] & 0xff) << 16) + ((addr[2] & 0xff) << 8)
                + (addr[3] & 0xff);
    } catch (UnknownHostException e) {
        e.printStackTrace();
        hostId = -1;
    }
    if (log.isDebugEnabled()) {
        log.debug("System host identifier: " + hostId);
    }
    return hostId;
}

---

From source file:hd3gtv.mydmam.db.orm.AutotestOrm.java

public static AutotestOrm populate(int index) {
    AutotestOrm result = new AutotestOrm();

    result.key = "THISISMYKEY" + String.valueOf(index);
    result.strvalue = "Hello world with cnts";
    result.bytvalue = result.strvalue.toUpperCase().getBytes();
    result.intvalue = 42;/*w w w.j  a  v  a  2s.c om*/
    result.lngvalue = -3329447494103907027L;
    result.bolvalue = true;
    result.fltvalue = 6.55957f;
    result.dlbvalue = (double) result.lngvalue / 11d;
    result.uuivalue = UUID.fromString("110E8400-E29B-11D4-A716-446655440000");
    result.jsovalue = new JSONObject();
    result.jsovalue.put("Hello", "world");
    result.jsovalue.put("Count", index);
    result.jsavalue = new JSONArray();
    result.jsavalue.add("One");
    result.jsavalue.add(42);
    result.jsavalue.add("Un");
    try {
        result.addressvalue = InetAddress.getLocalHost();
    } catch (UnknownHostException e) {
        e.printStackTrace();
    }
    result.sbuvalue = new StringBuffer();
    result.sbuvalue.append(result.key);
    result.sbuvalue.append(result.strvalue);
    result.sbuvalue.append(result.lngvalue);
    result.calendarvalue = Calendar.getInstance();
    result.calendarvalue.set(1995, 05, 23, 10, 04, 8);
    result.calendarvalue.set(Calendar.MILLISECOND, 666);
    result.dtevalue = result.calendarvalue.getTime();
    result.strarrayvalue = new String[2];
    result.strarrayvalue[0] = result.strvalue;
    result.strarrayvalue[1] = result.key;
    result.serializvalue = new HashMap<String, String>();
    result.serializvalue.put("Some var", result.strvalue);
    result.serializvalue.put("Other var", result.uuivalue.toString());

    result.enumvalue = MyEnum.ME;

    result.iamempty = "";
    result.iamanindex = index;
    result.donttouchme = "F*ck you";
    return result;
}

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From source file:edu.umass.cs.nio.nioutils.SampleNodeConfig.java

/**
 * @return Local host address.//from w w  w. j  ava  2 s.  co  m
 */
public static InetAddress getLocalAddress() {
    InetAddress localAddr = null;
    try {
        localAddr = InetAddress.getByName("localhost");
    } catch (UnknownHostException e) {
        e.printStackTrace();
    }
    return localAddr;
}

---

From source file:org.schabi.newpipe.Downloader.java

/**Common functionality between download(String url) and download(String url, String language)*/
private static String dl(HttpsURLConnection con) throws IOException {
    StringBuilder response = new StringBuilder();

    try {//from   ww  w . j  a  v  a2 s . c om
        con.setRequestMethod("GET");
        con.setRequestProperty("User-Agent", USER_AGENT);

        BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
        String inputLine;

        while ((inputLine = in.readLine()) != null) {
            response.append(inputLine);
        }
        in.close();

    } catch (UnknownHostException uhe) {//thrown when there's no internet connection
        uhe.printStackTrace();
        //Toast.makeText(getActivity(), uhe.getMessage(), Toast.LENGTH_LONG).show();
    }

    return response.toString();
}

---

From source file:com.anyi.gp.license.RegisterTools.java

public static String getHostName() {
    try {/*from  w  w w.java2 s  . c  o m*/
        return InetAddress.getLocalHost().getHostName();
    } catch (UnknownHostException e) {
        e.printStackTrace();
    }
    return "";
}

---

From source file:org.apache.geode.internal.cache.ClusterConfigurationLoader.java

/**
 * Request the shared configuration for group(s) from locator(s) this member is bootstrapped with.
 *
 * This will request the group config this server belongs plus the "cluster" config
 * /* w w  w.j a v  a2  s. c  om*/
 * @param config this member's configuration.
 * @return {@link ConfigurationResponse}
 */
public static ConfigurationResponse requestConfigurationFromLocators(DistributionConfig config,
        List<String> locatorList) throws ClusterConfigurationNotAvailableException, UnknownHostException {
    List<String> groups = ClusterConfigurationLoader.getGroups(config);
    ConfigurationRequest request = new ConfigurationRequest();

    request.addGroups(ClusterConfigurationService.CLUSTER_CONFIG);
    for (String group : groups) {
        request.addGroups(group);
    }

    request.setNumAttempts(10);

    ConfigurationResponse response = null;
    // Try talking to all the locators in the list
    // to get the shared configuration.

    TcpClient client = new TcpClient();

    for (String locatorInfo : locatorList) {
        DistributionLocatorId dlId = new DistributionLocatorId(locatorInfo);
        String ipaddress = dlId.getBindAddress();
        InetAddress locatorInetAddress = null;

        if (StringUtils.isNotBlank(ipaddress)) {
            locatorInetAddress = InetAddress.getByName(ipaddress);
        } else {
            locatorInetAddress = dlId.getHost().getAddress();
        }

        int port = dlId.getPort();

        try {
            response = (ConfigurationResponse) client.requestToServer(locatorInetAddress, port, request, 10000);
        } catch (UnknownHostException e) {
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Log
            e.printStackTrace();
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }
    }
    // if the response is null , that means Shared Configuration service is not installed on the
    // locator
    // and hence it returns null

    if (response == null || response.failedToGetSharedConfig()) {
        throw new ClusterConfigurationNotAvailableException(
                LocalizedStrings.Launcher_Command_FAILED_TO_GET_SHARED_CONFIGURATION.toLocalizedString());
    }

    return response;
}

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