Class IPv6Utils

java.lang.Object

org.apache.tomcat.util.net.IPv6Utils

public class IPv6Utils
extends Object

IPv6 utilities.

For the moment, it only contains function to canonicalize IPv6 address into RFC 5952 form.

Constructor Summary

Constructors

Constructor	Description
IPv6Utils()

Method Summary

Modifier and Type	Method	Description
static String	canonize(String ipv6Address)	Convert IPv6 address into RFC 5952 form.

Methods inherited from class java.lang.Object

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

Constructor Details

IPv6Utils

public IPv6Utils()

Method Details

canonize

public static String canonize(String ipv6Address)
                       throws IllegalArgumentException

Convert IPv6 address into RFC 5952 form. E.g. 2001:db8:0:1:0:0:0:1 -> 2001:db8:0:1::1

Method is null safe, and if IPv4 address or host name is passed to the method it is returned without any processing.

Method also supports IPv4 in IPv6 (e.g. 0:0:0:0:0:ffff:192.0.2.1 -> ::ffff:192.0.2.1), and zone ID (e.g. fe80:0:0:0:f0f0:c0c0:1919:1234%4 -> fe80::f0f0:c0c0:1919:1234%4).

The behaviour of this method is undefined if an invalid IPv6 address is passed in as input.

Parameters:

ipv6Address - String representing valid IPv6 address.

Returns:

String representing IPv6 in canonical form.

Throws:

IllegalArgumentException - if IPv6 format is unacceptable.