680: Persist and Fetch GRANDPA Data with Refactoring from Previous Class

[hMitov]

Description

• Added new methods to persist and fetch GRANDPA-related data in the database.
• Refactored the code to eliminate duplicate data by moving relevant fields from SyncState to RoundState (Grandpa state).
• Refactored WarpSyncMachine.java and WarpSyncState.java to accommodate these changes.

P.S. As part of my task, I conducted research to identify where these persisting and fetching methods are utilized in the current implementation and explored potential use cases for them in upcoming tasks.

Hereby, I place what I have found:
Method: saveAuthorities()
Should be seen in:

• func newGrandpaStateFromGenesis()
• func applyScheduledChanges()
• func applyForcedChanges()
• func setNextChange()

Method: loadAuthorities()
Should be seen in:

• func updateAuthorities(): Updates the GRANDPA voter set, increments the setID, and resets the round numbers.
• func verifyBlockJustification(): Verifies the finality justification for a block and returns the SCALE-encoded justification with any extra bytes removed.

Method: saveCurrentSetID()
Should be seen in:

• func newGrandpaStateFromGenesis(): Returns a new GrandpaState given the GRANDPA genesis authorities.
• func incrementSetID(): Increments the set ID.
• func rewind(): Rewinds the chain to the given block number. If the number of blocks exceeds the chain height, it rewinds to genesis.

Method: loadCurrentSetID()
Should be seen in:

• func applyForcedChanges(): Checks for scheduled forced changes relative to the imported block and applies them (or does nothing if none are found).
• func setNextChange(): Sets the next authority change at the given block number (the last block in the current set, not part of the next set).
• func incrementSetID(): Increments the set ID.
• func getSetIDByBlockNumber(): Returns the set ID for a given block number.
• func rewind(): Rewinds the chain to the given block number. If the number of blocks exceeds the chain height, it rewinds to genesis.
• func newService(): Returns a new GRANDPA Service instance.
• func updateAuthorities(): Updates the GRANDPA voter set, increments the setID, and resets the round numbers.
• func reportEquivocation(): Handles equivocation reports.

Method: saveLatestRound()
Should be seen in:

• func newGrandpaStateFromGenesis(): Returns a new GrandpaState given the GRANDPA genesis authorities.
• func initiateRound(): Initiates a new round in GRANDPA.
• func finalise(): Finalizes the round by setting the best final candidate for this round.

Method: loadLatestRound()
Should be seen in:

• func newService(): Returns a new GRANDPA Service instance.
• func reportEquivocation(): Handles equivocation reports.

Method: savePrevotes()
Should be seen in:

• func finalise(): Finalizes the round by setting the best final candidate for this round.
• func handleCatchUpResponse(): Handles responses during the catch-up process.

Method: loadPrevotes()
Should be seen in:

• func newCatchUpResponse(): Handles the creation of a new catch-up response.

Method: savePrecommits()
Should be seen in:

• func finalise(): Finalizes the round.
• func handleCommitMessage(): Processes commit messages in GRANDPA.
• func handleCatchUpResponse(): Handles responses during the catch-up process.

Method: loadPrecommits()
Should be seen in:

• func newCommitMessage(): Handles the creation of a new commit message.
• func newCatchUpResponse(): Handles the creation of a new catch-up response.

Fixes #680

[sonarqubecloud]

Quality Gate passed

Issues
1 New issue
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud