Package org.eblocker.server.common.util

Class Ip4Utils

java.lang.Object

org.eblocker.server.common.util.Ip4Utils

public class Ip4Utils
extends Object

Utility functions for IPv4 addresses.

Constructor Summary

Constructors

Constructor	Description
Ip4Utils()

Method Summary

Modifier and Type	Method	Description
static int	convertBytesToIp(byte[] bytes)
static int	convertCidrToNetMask(int cidr)
static String	convertIpIntToString(int ip)
static int[]	convertIpRangeToIpNetmask(String ipRange)
static int	convertIpStringToInt(String ip)
static byte[]	convertIpToBytes(int ip)
static int	convertIpToInt(Ip4Address ip)
static int	convertNetMaskToCidr(int netMask)
static String	getSubnet(String ipString, String netMaskString)
static boolean	isInSubnet(int ip, int subnet, int netmask)
static boolean	isInSubnet(String ip, String subnet, String netmask)
static boolean	isIPAddress(String ipaddress)	Returns true if the given string is an IPv4 address.
static boolean	isIpRange(String ipRange)
static boolean	isLinkLocal(Ip4Address ip4Address)
static boolean	isPrivate(Ip4Address ip4Address)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Ip4Utils

public Ip4Utils()

Method Details

isIPAddress

public static boolean isIPAddress(String ipaddress)

Returns true if the given string is an IPv4 address.

Parameters:

ipaddress - IP address as string

Returns:

true if ipaddress is an IPv4 address

isIpRange

public static boolean isIpRange(String ipRange)

getSubnet

public static String getSubnet(String ipString,
 String netMaskString)

convertIpStringToInt

public static int convertIpStringToInt(String ip)

convertIpIntToString

public static String convertIpIntToString(int ip)

convertNetMaskToCidr

public static int convertNetMaskToCidr(int netMask)

convertCidrToNetMask

public static int convertCidrToNetMask(int cidr)

isInSubnet

public static boolean isInSubnet(String ip,
 String subnet,
 String netmask)

isInSubnet

public static boolean isInSubnet(int ip,
 int subnet,
 int netmask)

convertIpRangeToIpNetmask

public static int[] convertIpRangeToIpNetmask(String ipRange)

convertIpToBytes

public static byte[] convertIpToBytes(int ip)

convertBytesToIp

public static int convertBytesToIp(byte[] bytes)

convertIpToInt

public static int convertIpToInt(Ip4Address ip)

isLinkLocal

public static boolean isLinkLocal(Ip4Address ip4Address)

isPrivate

public static boolean isPrivate(Ip4Address ip4Address)