Example usage for org.apache.commons.net.util SubnetUtils SubnetUtils

Introduction

In this page you can find the example usage for org.apache.commons.net.util SubnetUtils SubnetUtils.

Prototype

public SubnetUtils(String cidrNotation)

Source Link

Document

Constructor that takes a CIDR-notation string, e.g.

Usage

From source file:projetohorus.TamanhoHost.java

void TamanhoHost() throws UnknownHostException, SocketException {
    InetAddress localHost = Inet4Address.getLocalHost();
    NetworkInterface networkInterface = NetworkInterface.getByInetAddress(localHost);
    short x = networkInterface.getInterfaceAddresses().get(0).getNetworkPrefixLength();
    String n = localHost.getHostAddress() + "/" + x;
    System.out.println(n);/* w  w w  .  j  av  a2  s . c  om*/
    SubnetUtils utils = new SubnetUtils(n);

    System.out.println(utils.getInfo());
    String first = utils.getInfo().getLowAddress();
    String last = utils.getInfo().getHighAddress();
    String[] iplast = last.split(Pattern.quote("."));
    String[] ipfirst = first.split(Pattern.quote("."));

    numfirst = Integer.parseInt(ipfirst[3]);
    numlast = Integer.parseInt(iplast[3]);

}

From source file:vn.vnpttech.ssdc.nms.webapp.util.SubnetUtil.java

/**
 * check ip range of two cidr is overlap
 *
 * @param cidr1//  w w  w. java 2 s .c o  m
 * @param cidr2
 * @return true if overlap, false if not
 */
public static boolean checkCidrOverlap(String cidr1, String cidr2) {
    SubnetUtils su = new SubnetUtils(cidr1);
    SubnetUtils su2 = new SubnetUtils(cidr2);

    int start1 = su.getInfo().asInteger(su.getInfo().getLowAddress());
    int end1 = su.getInfo().asInteger(su.getInfo().getHighAddress());

    int start2 = su2.getInfo().asInteger(su2.getInfo().getLowAddress());
    int end2 = su2.getInfo().asInteger(su2.getInfo().getHighAddress());

    boolean ret = false;

    if (!((end2 <= start1) && (end1 <= start2))) {
        ret = true;
    } else {
        ret = false;
    }
    return ret;

}

From source file:vn.vnpttech.ssdc.nms.webapp.util.SubnetUtil.java

/**
 * Check ip range of cidr2 in ip range cidr1
 *
 * @param cidr1//  w  w w  .j a v a  2  s.  c  om
 * @param cidr2
 * @return true if cidr2 in cidr1, false if not
 */
public static boolean checkCidrInCdir(String cidr1, String cidr2) {
    SubnetUtils su = new SubnetUtils(cidr1);
    SubnetUtils su2 = new SubnetUtils(cidr2);

    System.out.println(su.getInfo().getCidrSignature());

    System.out.println(su.getInfo().getLowAddress());
    System.out.println(su.getInfo().getHighAddress());

    int end1 = su.getInfo().asInteger(su.getInfo().getHighAddress());
    int start1 = su.getInfo().asInteger(su.getInfo().getLowAddress());

    int end2 = su2.getInfo().asInteger(su2.getInfo().getHighAddress());
    int start2 = su2.getInfo().asInteger(su2.getInfo().getLowAddress());

    boolean ret = false;

    if ((start1 <= start2) && (end2 <= end1)) {
        ret = true;
    } else {
        ret = false;
    }
    return ret;

}