com.jaeksoft.searchlib.util.NetworksUtils.java Source code

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Here is the source code for com.jaeksoft.searchlib.util.NetworksUtils.java

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/**   
 * License Agreement for OpenSearchServer
 *
 * Copyright (C) 2013 Emmanuel Keller / Jaeksoft
 * 
 * http://www.open-search-server.com
 * 
 * This file is part of OpenSearchServer.
 *
 * OpenSearchServer 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 3 of the License, or
 *  (at your option) any later version.
 *
 * OpenSearchServer 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 OpenSearchServer. 
 *  If not, see <http://www.gnu.org/licenses/>.
 **/

package com.jaeksoft.searchlib.util;

import java.io.IOException;
import java.io.StringReader;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.net.URISyntaxException;
import java.net.UnknownHostException;
import java.util.Enumeration;
import java.util.List;

import org.apache.commons.codec.binary.Hex;
import org.apache.commons.net.util.SubnetUtils;
import org.apache.commons.net.util.SubnetUtils.SubnetInfo;

public class NetworksUtils {

    public final static SubnetInfo[] getSubnetArray(String ips) throws IOException {
        if (ips == null)
            return null;
        StringReader sr = new StringReader(ips);
        try {
            List<String> lines = IOUtils.readLines(sr);
            if (lines == null)
                return null;
            SubnetInfo[] subnetArray = new SubnetInfo[lines.size()];
            int i = 0;
            for (String line : lines) {
                line = line.trim();
                if (line.isEmpty())
                    continue;
                if (line.indexOf('/') == -1)
                    line = line + "/32";
                SubnetUtils subnetUtils = new SubnetUtils(line);
                subnetUtils.setInclusiveHostCount(true);
                subnetArray[i++] = subnetUtils.getInfo();
            }
            return subnetArray;
        } finally {
            IOUtils.closeQuietly(sr);
        }
    }

    public static final String getHardwareAddress(NetworkInterface networkInterface) throws SocketException {
        if (networkInterface == null)
            return null;
        if (networkInterface.getHardwareAddress() == null)
            return null;
        return Hex.encodeHexString(networkInterface.getHardwareAddress());
    }

    public static final String getFirstHardwareAddress()
            throws URISyntaxException, UnknownHostException, SocketException {
        InetAddress localhost = InetAddress.getLocalHost();
        String hardwareAddress = null;
        if (localhost != null)
            hardwareAddress = getHardwareAddress(NetworkInterface.getByInetAddress(localhost));
        if (hardwareAddress != null)
            return hardwareAddress;
        Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();
        while (networkInterfaces.hasMoreElements()) {
            hardwareAddress = getHardwareAddress(networkInterfaces.nextElement());
            if (hardwareAddress != null)
                return hardwareAddress;
        }
        return null;
    }

    public static void main(String[] args) throws IOException {
        for (SubnetInfo subnetInfo : getSubnetArray("78.235.189.98/32")) {
            System.out.println(subnetInfo.getAddressCount());
            System.out.println(subnetInfo.isInRange("78.235.189.98"));
        }
    }
}