001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package examples.cidr;
018
019import java.util.Arrays;
020import java.util.Scanner;
021
022import org.apache.commons.net.util.SubnetUtils;
023import org.apache.commons.net.util.SubnetUtils.SubnetInfo;
024
025/**
026 * Example class that shows how to use the {@link SubnetUtils} class.
027 *
028 */
029public class SubnetUtilsExample {
030
031    public static void main(String[] args) {
032        String subnet = "192.168.0.3/31";
033        SubnetUtils utils = new SubnetUtils(subnet);
034        SubnetInfo info = utils.getInfo();
035
036        System.out.printf("Subnet Information for %s:\n", subnet);
037        System.out.println("--------------------------------------");
038        System.out.printf("IP Address:\t\t\t%s\t[%s]\n", info.getAddress(),
039                Integer.toBinaryString(info.asInteger(info.getAddress())));
040        System.out.printf("Netmask:\t\t\t%s\t[%s]\n", info.getNetmask(),
041                Integer.toBinaryString(info.asInteger(info.getNetmask())));
042        System.out.printf("CIDR Representation:\t\t%s\n\n", info.getCidrSignature());
043
044        System.out.printf("Supplied IP Address:\t\t%s\n\n", info.getAddress());
045
046        System.out.printf("Network Address:\t\t%s\t[%s]\n", info.getNetworkAddress(),
047                Integer.toBinaryString(info.asInteger(info.getNetworkAddress())));
048        System.out.printf("Broadcast Address:\t\t%s\t[%s]\n", info.getBroadcastAddress(),
049                Integer.toBinaryString(info.asInteger(info.getBroadcastAddress())));
050        System.out.printf("Low Address:\t\t\t%s\t[%s]\n", info.getLowAddress(),
051                Integer.toBinaryString(info.asInteger(info.getLowAddress())));
052        System.out.printf("High Address:\t\t\t%s\t[%s]\n", info.getHighAddress(),
053                Integer.toBinaryString(info.asInteger(info.getHighAddress())));
054
055        System.out.printf("Total usable addresses: \t%d\n", Long.valueOf(info.getAddressCountLong()));
056        System.out.printf("Address List: %s\n\n", Arrays.toString(info.getAllAddresses()));
057
058        final String prompt ="Enter an IP address (e.g. 192.168.0.10):";
059        System.out.println(prompt);
060        Scanner scanner = new Scanner(System.in);
061        while (scanner.hasNextLine()) {
062            String address = scanner.nextLine();
063            System.out.println("The IP address [" + address + "] is "
064                    + (info.isInRange(address) ? "" : "not ")
065                    + "within the subnet [" + subnet + "]");
066            System.out.println(prompt);
067        }
068        scanner.close();
069    }
070
071}