com.voytechs.jnetstream.primitive.address
Class IpNetmask

java.lang.Object
  com.voytechs.jnetstream.primitive.address.Address
      com.voytechs.jnetstream.primitive.address.IpNetmask

All Implemented Interfaces:

java.io.Serializable

public class IpNetmask
extends Address

Version:

$Revision: 1.4 $

Author:

Mark Bednarczyk

See Also:

Serialized Form

Field Summary

Fields inherited from class com.voytechs.jnetstream.primitive.address.Address

address, debug, DEFAULT_NUMBER_BASE, format, separator

Constructor Summary

IpNetmask(int bitsInMask)

IpNetmask(java.lang.String netmask)

Method Summary

byte[]	applyNetmask(Address ip) This method applies the netmask to another IpNumber object such as IpAddress or IpNetwork.
byte[]	applyNetmask(byte[] ip)
int	getBitsInNetmask() Return the number of bits turn on in a netmask.
static void	main(java.lang.String[] args) Test function for IpNetmask
static byte[]	parseBitCount(int bits) Converts into a long for a IP V4 netmask.
java.lang.String	toString() Convert to dot notation string representation of the address

Methods inherited from class com.voytechs.jnetstream.primitive.address.Address

AND, AND, byteArrayValue, compare, compare, compareTo, EOR, EOR, equals, getByte, getByte, getRadix, INVERT, INVERT, longToByteArray, OR, OR, parseByteArray, setAddress, setByteArrayAddress, setFormat, setFormat, setRadix, setSeparator, stringValue, toByteArray, toString, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

IpNetmask

public IpNetmask(java.lang.String netmask)

Parameters:

-

Throws:

IpNetmask

public IpNetmask(int bitsInMask)

Method Detail

parseBitCount

public static byte[] parseBitCount(int bits)

Converts into a long for a IP V4 netmask. Throws an exception if bit count is greater than 32. This is only a V4 convention.

getBitsInNetmask

public int getBitsInNetmask()

Return the number of bits turn on in a netmask. This is use full if you want to display the netmask as a slash with number of bits in mask.

Returns:

number of bits that are on in the netmask.

applyNetmask

public byte[] applyNetmask(Address ip)

This method applies the netmask to another IpNumber object such as IpAddress or IpNetwork. Netmask is ANDed with every byte in the corresponding object. If number of bytes in the netmask does not match the number in the IpNumber object then an IllegalArgumentException is thrown.

Returns:

A new byte array is returned with mask applied to the ip number object.

applyNetmask

public byte[] applyNetmask(byte[] ip)

toString

public java.lang.String toString()

Description copied from class: Address

Convert to dot notation string representation of the address

Overrides:

toString in class Address

Returns:

IP address in the dot notation.

main

public static void main(java.lang.String[] args)

Test function for IpNetmask

Parameters:

args - command line arguments