Java InetAddress Create getInetAddress(String dottedNotation)

Description

get Inet Address

License

Open Source License

Declaration

public static InetAddress getInetAddress(String dottedNotation) 

Method Source Code

//package com.java2s;
/*//from   ww w .ja v a2s. co m
 * This file is part of the OpenNMS(R) Application.
 *
 * OpenNMS(R) is Copyright (C) 2007 The OpenNMS Group, Inc.  All rights reserved.
 * OpenNMS(R) is a derivative work, containing both original code, included code and modified
 * code that was published under the GNU General Public License. Copyrights for modified
 * and included code are below.
 *
 * OpenNMS(R) is a registered trademark of The OpenNMS Group, Inc.
 *
 * Modifications:
 * 
 * Created: January 7, 2007
 *
 * Copyright (C) 2006-2007 The OpenNMS Group, Inc.  All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *
 * For more information contact:
 *      OpenNMS Licensing       <license@opennms.org>
 *      http://www.opennms.org/
 *      http://www.opennms.com/
 */

import java.net.InetAddress;
import java.net.UnknownHostException;

public class Main {
    public static InetAddress getInetAddress(byte[] ipAddrOctets) {
        try {
            return InetAddress.getByAddress(ipAddrOctets);
        } catch (UnknownHostException e) {
            throw new IllegalArgumentException(
                    "Invalid IPAddress " + ipAddrOctets + " with length " + ipAddrOctets.length);
        }

    }

    public static InetAddress getInetAddress(String dottedNotation) {
        try {
            return InetAddress.getByName(dottedNotation);
        } catch (UnknownHostException e) {
            throw new IllegalArgumentException("Invalid IPAddress " + dottedNotation);
        }
    }

    public static InetAddress getInetAddress(long ipAddrAs32bitNumber) {
        return getInetAddress(toIpAddrBytes(ipAddrAs32bitNumber));
    }

    public static byte[] toIpAddrBytes(long address) {

        byte[] octets = new byte[4];
        octets[0] = ((byte) ((address >>> 24) & 0xff));
        octets[1] = ((byte) ((address >>> 16) & 0xff));
        octets[2] = ((byte) ((address >>> 8) & 0xff));
        octets[3] = ((byte) (address & 0xff));

        return octets;
    }

    public static byte[] toIpAddrBytes(String dottedNotation) {
        return getInetAddress(dottedNotation).getAddress();
    }

    public static byte[] toIpAddrBytes(InetAddress addr) {
        return addr.getAddress();
    }
}

Related

1. getInetAddress()
2. getInetAddress(final int[] octets, final int offset, final int length)
3. getInetAddress(final String addressOrName)
4. getInetAddress(long ip)
5. getInetAddress(Socket socket)
6. getInetAddress(String host)
7. getInetAddress(String hostName)
8. getInetAddress(String name)
9. getInetAddress(String str)