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:io.kamax.mxisd.lookup.strategy.RecursivePriorityLookupStrategy.java

private boolean isAllowedForRecursive(String source) {
    boolean canRecurse = false;

    try {/*from w w w .j  av a2  s. c  o  m*/
        if (cfg.isEnabled()) {
            log.debug("Checking {} CIDRs for recursion", allowedCidr.size());
            for (CIDRUtils cidr : allowedCidr) {
                if (cidr.isInRange(source)) {
                    log.debug("{} is in range {}, allowing recursion", source, cidr.getNetworkAddress());
                    canRecurse = true;
                    break;
                } else {
                    log.debug("{} is not in range {}", source, cidr.getNetworkAddress());
                }
            }
        }
    } catch (UnknownHostException e) {
        // this should never happened as we should have only IP ranges!
        log.error("Unexpected {} exception: {}", e.getClass().getSimpleName(), e.getMessage());
    }

    return canRecurse;
}

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From source file:org.openhab.binding.modbus.internal.pooling.ModbusSlaveConnectionFactoryImpl.java

private InetAddress getInetAddress(ModbusIPSlaveEndpoint key) {
    try {//w  ww. ja  v  a2s . com
        return InetAddress.getByName(key.getAddress());
    } catch (UnknownHostException e) {
        logger.error("KeyedPooledModbusSlaveConnectionFactory: Unknown host: {}. Connection creation failed.",
                e.getMessage());
        return null;
    }
}

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From source file:org.asimba.engine.cluster.JGroupsCluster.java

/**
 * Return the JChannel instance configured for this JGroupsCluster<br/>
 * Note: the JChannel is connected to upon first instantiation
 *//*from   w  w  w .  j a  v  a2  s  .  c  om*/
@Override
public Object getChannel() {
    if (_jChannel == null) {
        String sNodeId = null;

        // initialize channel from initialcontext
        try {
            InitialContext ic = new InitialContext();
            sNodeId = (String) ic.lookup("java:comp/env/" + PROP_ASIMBA_NODE_ID);
            _oLogger.debug("Trying to read the node id from initial context");
        } catch (NamingException e) {
            _oLogger.warn("Getting initialcontext failed! " + e.getMessage());
        }

        if (StringUtils.isEmpty(sNodeId)) {
            // Initialize the channel, based on configuration
            sNodeId = System.getProperty(PROP_ASIMBA_NODE_ID);
        }

        if (StringUtils.isEmpty(sNodeId)) {
            try {
                // Initialize the channel, based on hostname
                sNodeId = getHostName();
            } catch (UnknownHostException ex) {
                _oLogger.error("Getting hostname failed! " + ex.getMessage());
            }
        }

        try {
            if (sNodeId != null) {
                // Apply custom options:
                Map<String, String> mOptions = _mCustomOptions.get(sNodeId);

                _oLogger.info("System property " + PROP_ASIMBA_NODE_ID + " specified; applying"
                        + "custom properties JGroupsCluster '" + _sID + "', node '" + sNodeId + "'");

                for (Entry<String, String> prop : mOptions.entrySet()) {
                    System.setProperty(prop.getKey(), prop.getValue());
                }

            } else {
                _oLogger.info("No " + PROP_ASIMBA_NODE_ID + " system property specified, so no "
                        + "custom properties applied for JGroupsCluster '" + _sID + "'");
            }

            _jChannel = new JChannel(_sConfigLocation);
            if (_sID != null)
                _jChannel.setName(_sID);

            _oLogger.info("Connecting to cluster " + _sID + " with name " + _sClusterName);
            _jChannel.connect(_sClusterName);

        } catch (Exception e) {
            _oLogger.error("Could not create JChannel: " + e.getMessage(), e);
            return null;
        }
    }

    return _jChannel;
}

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From source file:com.yodlee.sampleapps.helper.OpenSamlHelper.java

/**
 * This function generates the response.
 *
 * @param subjects// ww  w  . ja v a 2 s  . c  o m
 * @return SAMLResponse object
 * @throws SAMLException
 * @throws Exception
 */
public SAMLResponse generateResponse(String[] subjects, String issuer) throws SAMLException {
    // Get Host Information
    InetAddress address = null;
    try {
        address = InetAddress.getLocalHost();
    } catch (UnknownHostException e) {
        e.printStackTrace();
        throw new RuntimeException(e.getMessage());
    }
    String IPAddress = address.getHostAddress();
    String DNSAddress = address.getHostName();

    Collection statements = new ArrayList();

    // Create the SAML subject
    for (int i = 0; i < subjects.length; i++) {
        String subject = subjects[i];
        SAMLNameIdentifier nameIdentifier = new SAMLNameIdentifier(subject, null,
                SAMLNameIdentifier.FORMAT_X509);
        List confirmationMethodList = new ArrayList();
        confirmationMethodList.add(SAMLSubject.CONF_BEARER);

        SAMLSubject samlSubject = new SAMLSubject(nameIdentifier, confirmationMethodList, null, null);

        // Create the SAML Authentication Statement
        SAMLAuthenticationStatement sas = new SAMLAuthenticationStatement
        //(subject,"auth",new Date(),IPAddress,DNSAddress,null);
        (samlSubject, "password", new Date(), IPAddress, DNSAddress, null);

        statements.add(sas);
    }

    // Create the SAML Assertion
    SAMLAssertion assertion = new SAMLAssertion
    //(issuer,new Date(),new Date(),null,null,statements);
    (issuer, null, null, null, null, statements);
    Collection assertions = new ArrayList();
    assertions.add(assertion);

    // Create the SAML Response
    SAMLResponse response = null;
    response = new SAMLResponse("artifact", subjects[0], assertions, null);

    Collection dsa_certs = new ArrayList();
    for (int i = 0; i < OpenSamlHelper.certs.length; i++)
        dsa_certs.add(OpenSamlHelper.certs[i]);

    // Sign the Response
    try {
        response.sign(XMLSignature.ALGO_ID_SIGNATURE_RSA, OpenSamlHelper.privateKey, dsa_certs);
    } catch (SAMLException e) {
        System.out.println("SAMLException.  Error signing the response.");
        e.printStackTrace();
    }
    //response.toStream( System.out);

    return response;
}

---

From source file:org.openhab.binding.heos.internal.resources.Telnet.java

/**
 * Connects to a host with the specified IP address and port
 *
 * @param ip IP Address of the host/*from www.  jav  a  2s .c o  m*/
 * @param port where to be connected
 * @return True if connection was successful
 * @throws SocketException
 * @throws IOException
 */

public boolean connect(String ip, int port) throws SocketException, IOException {
    this.ip = ip;
    this.port = port;
    try {
        address = InetAddress.getByName(ip);
    } catch (UnknownHostException e) {
        logger.debug("Unknown Host Exception - Message: {}", e.getMessage());
    }
    return openConnection();
}

---

From source file:org.archive.modules.fetcher.FetchDNS.java

protected boolean isQuadAddress(final CrawlURI curi, final String dnsName, final CrawlHost targetHost) {
    boolean result = false;
    Matcher matcher = InetAddressUtil.IPV4_QUADS.matcher(dnsName);
    // If it's an ip no need to do a lookup
    if (matcher == null || !matcher.matches()) {
        return result;
    }//from w  w w.  j av  a 2 s.  co m

    result = true;
    // Ideally this branch would never be reached: no CrawlURI
    // would be created for numerical IPs
    if (logger.isLoggable(Level.WARNING)) {
        logger.warning("Unnecessary DNS CrawlURI created: " + curi);
    }
    try {
        targetHost.setIP(
                InetAddress.getByAddress(dnsName,
                        new byte[] { (byte) (new Integer(matcher.group(1)).intValue()),
                                (byte) (new Integer(matcher.group(2)).intValue()),
                                (byte) (new Integer(matcher.group(3)).intValue()),
                                (byte) (new Integer(matcher.group(4)).intValue()) }),
                CrawlHost.IP_NEVER_EXPIRES); // Never expire numeric IPs
        curi.setFetchStatus(S_DNS_SUCCESS);
    } catch (UnknownHostException e) {
        logger.log(Level.SEVERE, "Should never be " + e.getMessage(), e);
        setUnresolvable(curi, targetHost);
    }
    return result;
}

---

From source file:org.exist.management.client.JMXServlet.java

/**
 * Register all known IP-addresses for localhost.
 *//*from   w  w  w  .  ja  va2 s . c o  m*/
void registerLocalHostAddresses() {
    // The external IP address of the server
    try {
        localhostAddresses.add(InetAddress.getLocalHost().getHostAddress());
    } catch (UnknownHostException ex) {
        LOG.warn(String.format("Unable to get HostAddress for localhost: %s", ex.getMessage()));
    }

    // The configured Localhost addresses
    try {
        for (InetAddress address : InetAddress.getAllByName("localhost")) {
            localhostAddresses.add(address.getHostAddress());
        }
    } catch (UnknownHostException ex) {
        LOG.warn(String.format("Unable to retrieve ipaddresses for localhost: %s", ex.getMessage()));
    }

    if (localhostAddresses.isEmpty()) {
        LOG.error("Unable to determine addresses for localhost, jmx servlet might be disfunctional.");
    }
}

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From source file:org.apache.flink.runtime.taskmanager.TaskManager.java

public static TaskManager createTaskManager(ExecutionMode mode) throws Exception {

    // IMPORTANT! At this point, the GlobalConfiguration must have been read!

    final InetSocketAddress jobManagerAddress;
    LOG.info("Reading location of job manager from configuration");

    final String address = GlobalConfiguration.getString(ConfigConstants.JOB_MANAGER_IPC_ADDRESS_KEY, null);
    final int port = GlobalConfiguration.getInteger(ConfigConstants.JOB_MANAGER_IPC_PORT_KEY,
            ConfigConstants.DEFAULT_JOB_MANAGER_IPC_PORT);

    if (address == null) {
        throw new Exception("Job manager address not configured in the GlobalConfiguration.");
    }/*  www .  j a  v  a  2s  .  co m*/

    // Try to convert configured address to {@link InetAddress}
    try {
        final InetAddress tmpAddress = InetAddress.getByName(address);
        jobManagerAddress = new InetSocketAddress(tmpAddress, port);
    } catch (UnknownHostException e) {
        LOG.error("Could not resolve JobManager host name.");
        throw new Exception("Could not resolve JobManager host name: " + e.getMessage(), e);
    }

    return createTaskManager(mode, jobManagerAddress);
}

---

From source file:com.pushinginertia.commons.net.client.AbstractHttpPostClient.java

/**
 * Opens the TCP connection to the remote host and sends the given payload.
 *
 * @param con instantiated connection/*from   w  w  w .  ja  v  a2 s .c o m*/
 * @param payload data to send
 * @throws HttpConnectException if there is a communication problem with the remote host
 */
protected void connectAndSend(final URLConnection con, final String payload) throws HttpConnectException {
    try {
        final OutputStream os = new BufferedOutputStream(con.getOutputStream());
        os.write(payload.getBytes());
        os.flush();
    } catch (UnknownHostException e) {
        // thrown when the host name cannot be resolved
        final String msg = "Cannot resolve host [" + getHostName() + "]: " + e.getMessage();
        LOG.error(getClass().getSimpleName(), msg, e);
        throw new HttpConnectException(msg, e);
    } catch (SocketTimeoutException e) {
        final String msg = "Timed out waiting for connection to [" + getUrl() + "]: " + e.getMessage();
        LOG.error(getClass().getSimpleName(), msg, e);
        throw new HttpConnectException(msg, e);
    } catch (SocketException e) {
        final String msg = "Failed to connect to [" + getUrl() + "]: " + e.getMessage();
        LOG.error(getClass().getSimpleName(), msg, e);
        throw new HttpConnectException(msg, e);
    } catch (Exception e) {
        final String msg = "A communication error occurred while trying to send payload to [" + getUrl() + "]: "
                + e.getMessage();
        LOG.error(getClass().getSimpleName(), msg, e);
        throw new HttpConnectException(msg, e);
    }
}

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From source file:org.parosproxy.paros.core.proxy.ProxyParam.java

@Override
protected void parse() {
    proxyIp = getConfig().getString(PROXY_IP, "localhost");
    determineProxyIpAnyLocalAddress();/*from w ww.  j av a 2s .com*/

    try {
        proxyPort = getConfig().getInt(PROXY_PORT, 8080);

    } catch (Exception e) {
    }

    try {
        proxySSLPort = 8443; //getConfig().getInt(PROXY_SSL_PORT, 8443);
    } catch (Exception e) {
    }

    reverseProxyIp = getConfig().getString(REVERSE_PROXY_IP);
    if (reverseProxyIp.equalsIgnoreCase("localhost") || reverseProxyIp.equalsIgnoreCase("127.0.0.1")) {
        try {
            reverseProxyIp = InetAddress.getLocalHost().getHostAddress();

        } catch (UnknownHostException e1) {
            logger.error(e1.getMessage(), e1);
        }
    }

    reverseProxyHttpPort = getConfig().getInt(REVERSE_PROXY_HTTP_PORT, 80);
    reverseProxyHttpsPort = getConfig().getInt(REVERSE_PROXY_HTTPS_PORT, 443);
    useReverseProxy = getConfig().getInt(USE_REVERSE_PROXY, 0);

    modifyAcceptEncodingHeader = getConfig().getBoolean(MODIFY_ACCEPT_ENCODING_HEADER, true);
    alwaysDecodeGzip = getConfig().getBoolean(ALWAYS_DECODE_GZIP, true);

    loadSecurityProtocolsEnabled();
}

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