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:at.ac.tuwien.infosys.Balancer.java

@RequestMapping(value = "/ip", method = RequestMethod.GET)
public String getIp() {
    InetAddress ip;/*from  ww w. j  a  va2s  .  co m*/
    String hostname;
    try {
        ip = InetAddress.getLocalHost();
        hostname = ip.getHostName();
        return "{\"ip\":\"" + ip + "\", \"hostname\":\"" + hostname + "\"}";
    } catch (UnknownHostException e) {
        e.printStackTrace();
        return "Error: " + e.getMessage();
    }
}

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From source file:edu.berkeley.sparrow.examples.BBackend.java

private void launchBatching() {
    try {/*  www. ja va 2 s. c  o m*/

        Socket toClient = new Socket(appClientAdress, appClientPortNumber);
        batchingPr = new Batching(batchingDelay, toClient, LOG);
        batchingTh = new Thread(batchingPr);
        batchingTh.start();

    } catch (UnknownHostException e) {
        LOG.error("LaunchBatching - Unknown Host");
        e.printStackTrace();
    }

    catch (IOException e) {
        LOG.error("LaunchBatching - IOException");
        e.printStackTrace();
    }

}

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From source file:runtime.starter.MPJYarnWrapper.java

public void run() {

    try {/* w  ww  .  j a  v  a2  s .co  m*/
        clientSock = new Socket(serverName, ioServerPort);
    } catch (UnknownHostException exp) {
        System.err.println("Unknown Host Exception, Host not found");
        exp.printStackTrace();
    } catch (IOException exp) {
        exp.printStackTrace();
    }

    // Redirecting Output Stream 
    try {
        System.setOut(new PrintStream(clientSock.getOutputStream(), true));
        System.setErr(new PrintStream(clientSock.getOutputStream(), true));
    } catch (IOException e) {
        e.printStackTrace();
    }

    try {
        c = Class.forName(className);
    } catch (ClassNotFoundException exp) {
        exp.printStackTrace();
    }

    try {
        String[] arvs = new String[3];

        if (appArgs != null) {
            arvs = new String[3 + appArgs.length];
        }
        arvs[0] = rank;
        arvs[1] = portInfo;
        arvs[2] = deviceName;

        if (appArgs != null) {
            for (int i = 0; i < appArgs.length; i++) {
                arvs[3 + i] = appArgs[i];
            }
        }

        InetAddress localaddr = InetAddress.getLocalHost();
        String hostName = localaddr.getHostName();

        System.out.println("Starting process <" + rank + "> on <" + hostName + ">");

        Method m = c.getMethod("main", new Class[] { arvs.getClass() });
        m.setAccessible(true);
        int mods = m.getModifiers();

        if (m.getReturnType() != void.class || !Modifier.isStatic(mods) || !Modifier.isPublic(mods)) {
            throw new NoSuchMethodException("main");
        }

        m.invoke(null, new Object[] { arvs });

        System.out.println("Stopping process <" + rank + "> on <" + hostName + ">");

        System.out.println("EXIT");//Stopping IOThread

        try {
            clientSock.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    } catch (Exception ioe) {
        ioe.printStackTrace();
    }

}

---

From source file:com.roncoo.controller.BaseController.java

/**
 * ?IP?//from   www.  j av  a2  s  .  co m
 * 
 * @return
 */
public String getIpAddr(HttpServletRequest request) {
    String ipAddress = null;
    ipAddress = request.getHeader("x-forwarded-for");
    if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
        ipAddress = request.getHeader("Proxy-Client-IP");
    }
    if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
        ipAddress = request.getHeader("WL-Proxy-Client-IP");
    }
    if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
        ipAddress = request.getRemoteAddr();
        if (ipAddress.equals("127.0.0.1") || ipAddress.equals("0:0:0:0:0:0:0:1")) {
            // ????IP
            InetAddress inet = null;
            try {
                inet = InetAddress.getLocalHost();
            } catch (UnknownHostException e) {
                e.printStackTrace();
            }
            ipAddress = inet.getHostAddress();
        }

    }

    // ?IPIP,IP','
    if (ipAddress != null && ipAddress.length() > 15) {
        if (ipAddress.indexOf(",") > 0) {
            ipAddress = ipAddress.substring(0, ipAddress.indexOf(","));
        }
    }
    return ipAddress;
}

---

From source file:org.datacleaner.util.VFSUtilsTest.java

public void test2HttpAccess() throws Exception {
    // first check if we have a connection
    try {// w  ww  .  ja  v a2s. c om
        InetAddress.getByName("eobjects.org");
    } catch (UnknownHostException e) {
        System.err.println("Skipping test " + getClass().getSimpleName() + "." + getName()
                + " since we don't seem to be able to reach eobjects.org");
        e.printStackTrace();
        return;
    }

    FileObject file = VFSUtils.getFileSystemManager().resolveFile("http://eobjects.org");
    try (InputStream in = file.getContent().getInputStream()) {
        BufferedReader reader = new BufferedReader(new InputStreamReader(in));
        String readLine = reader.readLine();
        assertNotNull(readLine);
    }
}

---

From source file:org.onecmdb.core.internal.update.CheckForUpdate.java

private String getCMDB_ID() {
    String id = "unkown";
    try {/*from  ww w  .  java  2 s  .  c o  m*/
        InetAddress localhost = InetAddress.getLocalHost();
        id = localhost.getHostAddress();
    } catch (UnknownHostException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    return ("" + id.hashCode());
}

---

From source file:org.eobjects.analyzer.util.VFSUtilsTest.java

public void test2HttpAccess() throws Exception {
    // first check if we have a connection
    try {/*w ww  .  ja v a  2s .  c  o  m*/
        InetAddress.getByName("eobjects.org");
    } catch (UnknownHostException e) {
        System.err.println("Skipping test " + getClass().getSimpleName() + "." + getName()
                + " since we don't seem to be able to reach eobjects.org");
        e.printStackTrace();
        return;
    }

    FileObject file = VFSUtils.getFileSystemManager().resolveFile("http://eobjects.org");
    InputStream in = file.getContent().getInputStream();
    try {
        BufferedReader reader = new BufferedReader(new InputStreamReader(in));
        String readLine = reader.readLine();
        assertNotNull(readLine);
    } finally {
        in.close();
    }
}

---

From source file:com.melusyn.sendgrid.SendGridMod.java

@Override
public void start() {
    super.start();
    EventBus eb = vertx.eventBus();/*from  w  w w  .  j  a va2s  .c  om*/

    String address = getOptionalStringConfig("address", "melusyn.sendgrid");
    String sendgridUsername = getMandatoryStringConfig("sendgrid_username");
    String sendgridPassword = getMandatoryStringConfig("sendgrid_password");

    JsonObject suppressionJson = container.config().getObject("suppressions", new JsonObject());
    for (String templateId : suppressionJson.getFieldNames()) {
        templateSuppressionGroup.put(templateId, suppressionJson.getInteger(templateId));
    }

    try {
        InetAddress ip = InetAddress.getLocalHost();
        hostname = ip.getHostName();
    } catch (UnknownHostException e) {
        e.printStackTrace();
    }

    sendgrid = new SendGrid(sendgridUsername, sendgridPassword);

    eb.registerHandler(address + ".send", this::sendEmail);
    eb.registerHandler(address + ".sendv2", this::sendEmailV2);
}

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

@SuppressWarnings("unchecked")
@Override/*from  ww w  .j a va  2s  . c om*/
public NodeIDType valueOf(String nodeAsString) {
    NodeIDType node = null;
    Iterator<NodeIDType> nodeIter = this.nmap.keySet().iterator();
    if (nodeIter.hasNext() && (node = nodeIter.next()) != null) {
        if (node instanceof String && this.nmap.containsKey(nodeAsString)) {
            return (NodeIDType) nodeAsString;
        } else if (node instanceof Integer) {
            return (NodeIDType) (Integer.valueOf(nodeAsString.trim()));
        } else if (node instanceof InetAddress) {
            try {
                return (NodeIDType) (InetAddress.getByName(nodeAsString.trim()));
            } catch (UnknownHostException e) {
                e.printStackTrace();
            }
        }
    }
    return null;
}

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From source file:mvm.rya.mongodb.MongoDBRyaDAO.java

public void init() throws RyaDAOException {
    try {/*from w w w .  j a  v a  2 s . c  o m*/
        secondaryIndexers = conf.getAdditionalIndexers();
        for (RyaSecondaryIndexer index : secondaryIndexers) {
            index.setConf(conf);
        }

        db = mongoClient.getDB(conf.get(MongoDBRdfConfiguration.MONGO_DB_NAME));
        coll = db.getCollection(conf.getTriplesCollectionName());
        nameSpaceManager = new SimpleMongoDBNamespaceManager(
                db.getCollection(conf.getNameSpacesCollectionName()));
        queryEngine = new MongoDBQueryEngine(conf);
        storageStrategy = new SimpleMongoDBStorageStrategy();
        storageStrategy.createIndices(coll);

    } catch (UnknownHostException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

}

---

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