com.sap.cloud.sdk.services.blockchainbusinessservices.blockchainvisibility

Class V110MerkleTree

java.lang.Object

com.sap.cloud.sdk.services.blockchainbusinessservices.blockchainvisibility.AbstractMerkleTree

com.sap.cloud.sdk.services.blockchainbusinessservices.blockchainvisibility.V110MerkleTree

All Implemented Interfaces:

MerkleTree

@Beta
public class V110MerkleTree
extends AbstractMerkleTree

Field Summary

Fields inherited from class com.sap.cloud.sdk.services.blockchainbusinessservices.blockchainvisibility.AbstractMerkleTree

depth, leaves, messageDigest, nodes, numberOfLeaves, salts

Fields inherited from interface com.sap.cloud.sdk.services.blockchainbusinessservices.blockchainvisibility.MerkleTree

ROOT_HASH_KEY

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	V110MerkleTree(MessageDigest messageDigest, int numberOfLeaves) Constructor
protected	V110MerkleTree(MessageDigest messageDigest, Map<Integer,String> leaves, Map<Integer,String> salts) Constructor

Method Summary

Modifier and Type	Method and Description
protected void	calculateHash(String key) calculates the hash of given rootHashKey
protected String	calculatLeafHash(String value) calculates the hash of the leaf
ProtocolVersion	getProtocolVersion() Protocol version describes how to build the tree and the proof

Methods inherited from class com.sap.cloud.sdk.services.blockchainbusinessservices.blockchainvisibility.AbstractMerkleTree

bytesToHexString, calculateDepth, createEmptyTree, formatKey, generateLeftChildKey, generateRightChildKey, getHashAlgorithm, getLeaves, getMissingHashIndexes, getNodes, getNumberOfLeaves, getRootHash, getSalts, getValueByKey, isALeafKey, removeRedundantNodes, setLeavesHashes

Methods inherited from class java.lang.Object

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

Constructor Detail

V110MerkleTree

protected V110MerkleTree(MessageDigest messageDigest,
                         Map<Integer,String> leaves,
                         Map<Integer,String> salts)

Constructor

Parameters:

messageDigest - messageDigest

leaves - leaves of the tree, index mapped to the value

salts - salts, mapping from index of the leave to the salt

V110MerkleTree

protected V110MerkleTree(MessageDigest messageDigest,
                         int numberOfLeaves)

Constructor

Parameters:

messageDigest - messageDigest

numberOfLeaves - number of leaves in the tree

Method Detail

calculatLeafHash

protected String calculatLeafHash(String value)

Description copied from class: AbstractMerkleTree

calculates the hash of the leaf

Specified by:

calculatLeafHash in class AbstractMerkleTree

Parameters:

value - key of the leaf

Returns:

hash

calculateHash

protected void calculateHash(String key)

Description copied from class: AbstractMerkleTree

calculates the hash of given rootHashKey

Specified by:

calculateHash in class AbstractMerkleTree

Parameters:

key - rootHashKey

getProtocolVersion

@Nonnull
public ProtocolVersion getProtocolVersion()

Description copied from interface: MerkleTree

Protocol version describes how to build the tree and the proof

Returns:

ProtocolVersion protocolVersion