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The PEtALS SOAP JBI binding component based on Axis2 and Jetty.
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/**
 * Copyright (c) 2008-2012 EBM WebSourcing, 2012-2023 Linagora
 * 
 * This program/library 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 2.1 of the License, or (at your
 * option) any later version.
 * 
 * This program/library 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 this program/library; If not, see http://www.gnu.org/licenses/
 * for the GNU Lesser General Public License version 2.1.
 */
package org.ow2.petals.binding.soap.util;

import java.net.Inet4Address;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Enumeration;
import java.util.HashSet;
import java.util.Set;

/**
 * A network class util used to manipulate network related stuff.
 * @author Christophe Hamerling - EBM WebSourcing
 */
public class NetworkUtil {

    /**
     * Get all the IPv4 {@link InetAddress} of the local host
     * 
     * @return all the local IPv4
     * 
     * @throws SocketException if an I/O error occurs 
     */
    public static Set getAllLocalIPv4InetAddresses() throws SocketException {
        Set result = new HashSet();
        Enumeration niEnum = NetworkInterface.getNetworkInterfaces();
        while (niEnum.hasMoreElements()) {
            NetworkInterface ni = niEnum.nextElement();
            Set ipForNi =  getIPv4InetAdressesFromNetworkInterface(ni);
            result.addAll(ipForNi);          
        }
        return result;
    }

    /**
     * Get the IPv4  {@link InetAddress} of the specified network interface
     * 
     * @param ni a network interface
     * 
     * @return all the IPv4 for the specified network interface
     */
    private static final Set getIPv4InetAdressesFromNetworkInterface(NetworkInterface ni) {
        Set result = new HashSet();
        
        Enumeration e = ni.getInetAddresses();
        while (e.hasMoreElements()) {
            InetAddress ia = e.nextElement();
            if (ia instanceof Inet4Address) {
                result.add((Inet4Address) ia);
            }
        }
        
        return result;
    }
}