net.clackrouter.netutils
Class NetUtils

java.lang.Object
  net.clackrouter.netutils.NetUtils

public class NetUtils
extends java.lang.Object

Simple utilities for operating on ByteBuffers and Internet Addresses.

Nested Class Summary

static class

NetUtils.Net

Constructor Summary

NetUtils()

Method Summary

static java.net.InetAddress	applyNetMask(java.net.InetAddress addr, java.net.InetAddress mask)
static java.net.InetAddress	ByteBuffer2Inet(java.nio.ByteBuffer in)
static int	getIntFromAddr(java.net.InetAddress in)
static long	getLongFromAddr(java.net.InetAddress in)
static java.net.InetAddress	getMaxAddressInSubnet(java.net.InetAddress network, java.net.InetAddress netmask)
static int	getNumMaskBits(java.net.InetAddress mask)
static java.nio.ByteBuffer	Inet2ByteBuffer(java.net.InetAddress in)
static java.nio.ByteBuffer	Inet2ByteBuffer(java.lang.String in)
static java.net.InetAddress	intToInetAddress(long addr)
static boolean	isNetworkMatch(java.net.InetAddress testIp, java.net.InetAddress network, java.net.InetAddress netmask)
static NetUtils.Net	NetworkAndMaskFromString(java.lang.String s)
static java.lang.String	NetworkAndMaskToString(java.net.InetAddress net, java.net.InetAddress mask)

Methods inherited from class java.lang.Object

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

Constructor Detail

NetUtils

public NetUtils()

Method Detail

Inet2ByteBuffer

public static java.nio.ByteBuffer Inet2ByteBuffer(java.lang.String in)

Inet2ByteBuffer

public static java.nio.ByteBuffer Inet2ByteBuffer(java.net.InetAddress in)

ByteBuffer2Inet

public static java.net.InetAddress ByteBuffer2Inet(java.nio.ByteBuffer in)

NetworkAndMaskToString

public static java.lang.String NetworkAndMaskToString(java.net.InetAddress net,
                                                      java.net.InetAddress mask)

getNumMaskBits

public static int getNumMaskBits(java.net.InetAddress mask)

NetworkAndMaskFromString

public static NetUtils.Net NetworkAndMaskFromString(java.lang.String s)
                                             throws java.lang.Exception

Throws:

java.lang.Exception

getIntFromAddr

public static int getIntFromAddr(java.net.InetAddress in)

getLongFromAddr

public static long getLongFromAddr(java.net.InetAddress in)

isNetworkMatch

public static boolean isNetworkMatch(java.net.InetAddress testIp,
                                     java.net.InetAddress network,
                                     java.net.InetAddress netmask)

intToInetAddress

public static java.net.InetAddress intToInetAddress(long addr)

applyNetMask

public static java.net.InetAddress applyNetMask(java.net.InetAddress addr,
                                                java.net.InetAddress mask)
                                         throws java.lang.Exception

Throws:

java.lang.Exception

getMaxAddressInSubnet

public static java.net.InetAddress getMaxAddressInSubnet(java.net.InetAddress network,
                                                         java.net.InetAddress netmask)