org.web3j.ens

Class NameHash

java.lang.Object

org.web3j.ens.NameHash

public class NameHash
extends java.lang.Object

ENS name hash implementation.

Constructor Summary

Constructors

Constructor and Description
NameHash()

Method Summary

Modifier and Type	Method and Description
static java.lang.String	dnsEncode(java.lang.String name) Encode Dns name.
static java.lang.String	nameHash(java.lang.String ensName)
static byte[]	nameHashAsBytes(java.lang.String ensName)
static java.lang.String	normalise(java.lang.String ensName) Normalise ENS name as per the specification.
static byte[]	toUtf8Bytes(java.lang.String string)

Methods inherited from class java.lang.Object

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

Constructor Detail

NameHash

public NameHash()

Method Detail

nameHashAsBytes

public static byte[] nameHashAsBytes(java.lang.String ensName)

nameHash

public static java.lang.String nameHash(java.lang.String ensName)

normalise

public static java.lang.String normalise(java.lang.String ensName)

Normalise ENS name as per the specification.

Parameters:

ensName - our user input ENS name

Returns:

normalised ens name

Throws:

EnsResolutionException - if the name cannot be normalised

toUtf8Bytes

public static byte[] toUtf8Bytes(java.lang.String string)

dnsEncode

public static java.lang.String dnsEncode(java.lang.String name)
                                  throws java.io.IOException

Encode Dns name. Reference implementation https://github.com/ethers-io/ethers.js/blob/fc1e006575d59792fa97b4efb9ea2f8cca1944cf/packages/hash/src.ts/namehash.ts#L49

Parameters:

name - Dns name

Returns:

Encoded name in Hex format.

Throws:

java.io.IOException