Description

We have recently implemented a method toDot for a human-readable string representation of VerkleTrie, which is immensely beneficial for debugging purposes. This method converts the tree into Dot format, a textual format for graph visualizations.

The current implementation includes:

• BranchNodes with the commitment attribute.
• StemNodes with stem, leftCommitment, and rightCommitment attributes.
• LeafNodes with suffix and value attributes.
• Each node has a location attribute, which can uniquely name the nodes.

You can find the current implementation in go-verkle.
The PR providing the implementation is here

New Feature Request

We now intend to extend this functionality by adding the capability to store the output of the toDot method into a file. This feature will allow users to save the graphical representation of VerkleTrie for further analysis or sharing.

Expected behavior

The proposed feature should:

• Provide a method to save the Dot format output generated by toDot into a file.
• Ensure that the file storage mechanism is efficient and user-friendly.
• Include error handling for scenarios such as write permissions or file system issues.
• Optionally, allow users to specify the file path and name where the output should be stored.

Description:

While executing the ./gradlew artifactoryPublish command in the VerkleTries_Besu project, multiple warnings are observed related to incomplete Javadoc.

Example warning:

VerkleTries_Besu/ipa-multipoint/src/main/java/org/hyperledger/besu/ethereum/trie/verkle/TrieKeyAdapter.java:45: warning: no comment
public Bytes32 storageKey(Bytes32 address, UInt256 storageKey) {

Objective:

Complete the Javadoc for the respective classes and methods to eliminate these warnings.

Note:

There's also an error regarding :artifactoryDeploy with a 401 status code. However, this will be addressed in a separate issue.

Acceptance Criteria:

• No Javadoc warnings when running ./gradlew artifactoryPublish.
• All added Javadocs should be relevant and provide clarity about the method or class it describes.

Description

Currently, there is no humanly readable string representation implemented for VerkleTrie. However, this could be helpful for debugging, for example. This issue proposes to implement a method toDot, a textual format for graphs used in visualisations and in go-verkle.

Expected behavior

We expect toDot to return the representation of the tree in Dot format.

• Nodes should have location as an attribute.
• BranchNodes should have the commitment as an attribute.
• StemNodes should have stem, leftCommitment, and rightCommitment as attributes.
• LeafNodes should have suffix and value as attributes.

The location could also be used to uniquely name the nodes.

Description

There is a potential optimization opportunity in the commitment caching process of the Verkle Trie implementation. The current approach to the computation of commitments might not be operating at its maximum efficiency.

Suggestion

The commitment calculation process should be modified so that computing commitments only occurs if a leaf under the node was modified. This enhancement could lead to more efficient handling of the Verkle Trie structure, potentially improving the system's overall performance.

Expected Benefits

• Reduced unnecessary computations.
• Improved performance of the Verkle Trie.
• Enhanced efficiency in handling trie structures.