Java Local Address Check isMyAddress(String host)

Description

Determine whether the host name (or ip address) identifies the current machine.

License

Open Source License

Declaration

public static boolean isMyAddress(String host) 

Method Source Code

//package com.java2s;
/*/*from w w w . j a  va 2 s. c o m*/
Copyright 2009 Semantic Discovery, Inc. (www.semanticdiscovery.com)
    
This file is part of the Semantic Discovery Toolkit.
    
The Semantic Discovery Toolkit is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
    
The Semantic Discovery Toolkit is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.
    
You should have received a copy of the GNU Lesser General Public License
along with The Semantic Discovery Toolkit.  If not, see <http://www.gnu.org/licenses/>.
*/

import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.net.UnknownHostException;

public class Main {
    /**
     * Determine whether the host name (or ip address) identifies the current
     * machine.
     */
    public static boolean isMyAddress(String host) {
        if ("localhost".equals(host))
            return true;

        boolean result = false;

        try {
            final InetAddress addr = InetAddress.getByName(host);
            result = addr.isAnyLocalAddress() || addr.isLoopbackAddress();

            if (!result) {
                result = NetworkInterface.getByInetAddress(addr) != null;
            }
        } catch (UnknownHostException uhe) {
            // result is false
        } catch (SocketException se) {
            // result is false
        }

        return result;
    }
}

Related

1. isLocalAddress(String address)
2. isLocalAddress(String address)
3. isLocalAddress(String host)
4. isLocalOrLoopback(String address)
5. isLoopbackAddress(String address)