org.jboss.netty.handler.ipfilter

Class IpSubnet

java.lang.Object

org.jboss.netty.handler.ipfilter.IpSubnet

All Implemented Interfaces:

Comparable<IpSubnet>, IpSet

Direct Known Subclasses:

IpSubnetFilterRule

public class IpSubnet
extends Object
implements IpSet, Comparable<IpSubnet>

This class allows to check if an IP V4 or V6 Address is contained in a subnet.

Supported IP V4 Formats for the Subnets are: 1.1.1.1/255.255.255.255 or 1.1.1.1/32 (CIDR-Notation) and (InetAddress,Mask) where Mask is a integer for CIDR-notation or a String for Standard Mask notation.


Example1:
IpV4Subnet ips = new IpV4Subnet("192.168.1.0/24");
System.out.println("Result: "+ ips.contains("192.168.1.123"));
System.out.println("Result: "+ ips.contains(inetAddress2));

Example1 bis:
IpV4Subnet ips = new IpV4Subnet(inetAddress, 24);
where inetAddress is 192.168.1.0 and inetAddress2 is 192.168.1.123


Example2:
IpV4Subnet ips = new IpV4Subnet("192.168.1.0/255.255.255.0");
System.out.println("Result: "+ ips.contains("192.168.1.123"));
System.out.println("Result: "+ ips.contains(inetAddress2));

Example2 bis:
IpV4Subnet ips = new IpV4Subnet(inetAddress, "255.255.255.0");
where inetAddress is 192.168.1.0 and inetAddress2 is 192.168.1.123

Supported IP V6 Formats for the Subnets are: a:b:c:d:e:f:g:h/NN (CIDR-Notation) or any IPV6 notations (like a:b:c:d::/NN, a:b:c:d:e:f:w.x.y.z/NN) and (InetAddress,Mask) where Mask is a integer for CIDR-notation and (InetAddress,subnet).


Example1:
IpSubnet ips = new IpSubnet("1fff:0:0a88:85a3:0:0:0:0/24");
IpSubnet ips = new IpSubnet("1fff:0:0a88:85a3::/24");
System.out.println("Result: "+ ips.contains("1fff:0:0a88:85a3:0:0:ac1f:8001"));
System.out.println("Result: "+ ips.contains(inetAddress2));

Example1 bis:
IpSubnet ips = new IpSubnet(inetAddress, 24);
where inetAddress2 is 1fff:0:0a88:85a3:0:0:ac1f:8001

Constructor Summary

Constructors

Constructor and Description
IpSubnet() Create IpSubnet for ALL (used for ALLOW or DENY ALL)
IpSubnet(InetAddress inetAddress, int cidrNetMask) Create IpSubnet using the CIDR Notation
IpSubnet(InetAddress inetAddress, String netMask) Create IpSubnet using the normal Notation
IpSubnet(String netAddress) Create IpSubnet using the CIDR or normal Notation i.e.

Method Summary

Methods

Modifier and Type	Method and Description
int	compareTo(IpSubnet o) Compare two IpSubnet
boolean	contains(InetAddress inetAddress) Compares the given InetAddress against the Subnet and returns true if the ip is in the subnet-ip-range and false if not.
boolean	contains(String ipAddr) Compares the given IP-Address against the Subnet and returns true if the ip is in the subnet-ip-range and false if not.
boolean	equals(Object o)
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

IpSubnet

public IpSubnet()

Create IpSubnet for ALL (used for ALLOW or DENY ALL)

IpSubnet

public IpSubnet(String netAddress)
         throws UnknownHostException

Create IpSubnet using the CIDR or normal Notation
i.e.:
IpSubnet subnet = new IpSubnet("10.10.10.0/24"); or
IpSubnet subnet = new IpSubnet("10.10.10.0/255.255.255.0"); or
IpSubnet subnet = new IpSubnet("1fff:0:0a88:85a3:0:0:0:0/24");

Parameters:

netAddress - a network address as string.

Throws:

UnknownHostException

IpSubnet

public IpSubnet(InetAddress inetAddress,
        int cidrNetMask)
         throws UnknownHostException

Create IpSubnet using the CIDR Notation

Throws:

UnknownHostException

IpSubnet

public IpSubnet(InetAddress inetAddress,
        String netMask)
         throws UnknownHostException

Create IpSubnet using the normal Notation

Throws:

UnknownHostException

Method Detail

contains

public boolean contains(String ipAddr)
                 throws UnknownHostException

Compares the given IP-Address against the Subnet and returns true if the ip is in the subnet-ip-range and false if not.

Parameters:

ipAddr - an ipaddress

Returns:

returns true if the given IP address is inside the currently set network.

Throws:

UnknownHostException

contains

public boolean contains(InetAddress inetAddress)

Compares the given InetAddress against the Subnet and returns true if the ip is in the subnet-ip-range and false if not.

Specified by:

contains in interface IpSet

Returns:

returns true if the given IP address is inside the currently set network.

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

compareTo

public int compareTo(IpSubnet o)

Compare two IpSubnet

Specified by:

compareTo in interface Comparable<IpSubnet>