org.klomp.snark.dht

Class InfoHash

java.lang.Object

net.i2p.data.SimpleDataStructure

net.i2p.crypto.SHA1Hash

org.klomp.snark.dht.InfoHash

All Implemented Interfaces:

DataStructure

class InfoHash
extends SHA1Hash

Represents a BitTorrent info hash used for DHT operations.

An info hash is a 20-byte SHA1 hash that uniquely identifies a torrent. In the DHT context, info hashes are used as keys to locate peers and track torrent participation across the distributed network.

Info hashes serve as the primary identifier for DHT operations:
- get_peer requests use info hashes to find peers for specific torrents
- announce_peer requests associate peers with specific info hashes
- DHT routing uses info hashes to determine which nodes should store peer information

This class extends SHA1Hash to provide torrent-specific functionality and formatting for debugging and logging purposes.

Field Summary

Fields inherited from class net.i2p.crypto.SHA1Hash

HASH_LENGTH

Fields inherited from class net.i2p.data.SimpleDataStructure

_data

Constructor Summary

Constructors

Constructor and Description
InfoHash(byte[] data) Creates a new info hash from the specified 20-byte data.

Method Summary

Modifier and Type	Method and Description
String	toString() Returns a string representation of the info hash for debugging and logging.

Methods inherited from class net.i2p.crypto.SHA1Hash

hashCode, length, readBytes, setData

Methods inherited from class net.i2p.data.SimpleDataStructure

calculateHash, equals, fromBase64, fromByteArray, getData, read, toBase64, toByteArray, writeBytes

Methods inherited from class java.lang.Object

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

Constructor Detail

InfoHash

public InfoHash(byte[] data)

Creates a new info hash from the specified 20-byte data.

Parameters:

data - the 20-byte SHA1 hash data representing the torrent info hash

Method Detail

toString

public String toString()

Returns a string representation of the info hash for debugging and logging.

Formats the info hash as hexadecimal within brackets for easy identification in log files and debug output. This provides a more readable representation than the default SHA1Hash toString() method.

Overrides:

toString in class SimpleDataStructure

Returns:

a formatted string containing the info hash in hexadecimal format