Examples with Ledger com.radixdlt.hotstuff.Ledger used on opensource projects

Example 1 with Ledger

use of com.radixdlt.hotstuff.Ledger in project radixdlt by radixdlt.

the class VertexStoreTest method setUp.

@Before
public void setUp() {
    // No type check issues with mocking generic here
    Ledger ssc = mock(Ledger.class);
    this.ledger = ssc;
    // TODO: replace mock with the real thing
    doAnswer(invocation -> {
        VerifiedVertex verifiedVertex = invocation.getArgument(1);
        return Optional.of(new PreparedVertex(verifiedVertex, MOCKED_HEADER, ImmutableList.of(), ImmutableMap.of(), 1L));
    }).when(ledger).prepare(any(), any());
    this.bftUpdateSender = rmock(EventDispatcher.class);
    this.rebuildUpdateEventDispatcher = rmock(EventDispatcher.class);
    this.bftHighQCUpdateEventDispatcher = rmock(EventDispatcher.class);
    this.committedSender = rmock(EventDispatcher.class);
    this.genesisHash = HashUtils.zero256();
    this.genesisVertex = new VerifiedVertex(UnverifiedVertex.createGenesis(MOCKED_HEADER), genesisHash);
    this.rootQC = QuorumCertificate.ofGenesis(genesisVertex, MOCKED_HEADER);
    this.sut = VertexStore.create(VerifiedVertexStoreState.create(HighQC.from(rootQC), genesisVertex, Optional.empty(), hasher), ledger, hasher, bftUpdateSender, rebuildUpdateEventDispatcher, bftHighQCUpdateEventDispatcher, committedSender);
    AtomicReference<BFTHeader> lastParentHeader = new AtomicReference<>(new BFTHeader(View.genesis(), genesisHash, MOCKED_HEADER));
    AtomicReference<BFTHeader> lastGrandParentHeader = new AtomicReference<>(new BFTHeader(View.genesis(), genesisHash, MOCKED_HEADER));
    AtomicReference<BFTHeader> lastGreatGrandParentHeader = new AtomicReference<>(new BFTHeader(View.genesis(), genesisHash, MOCKED_HEADER));
    this.nextSkippableVertex = (skipOne) -> {
        BFTHeader parentHeader = lastParentHeader.get();
        BFTHeader grandParentHeader = lastGrandParentHeader.get();
        BFTHeader greatGrandParentHeader = lastGreatGrandParentHeader.get();
        final QuorumCertificate qc;
        if (!parentHeader.getView().equals(View.genesis())) {
            VoteData data = new VoteData(parentHeader, grandParentHeader, skipOne ? null : greatGrandParentHeader);
            qc = new QuorumCertificate(data, new TimestampedECDSASignatures());
        } else {
            qc = rootQC;
        }
        View view = parentHeader.getView().next();
        if (skipOne) {
            view = view.next();
        }
        var rawVertex = UnverifiedVertex.create(qc, view, List.of(Txn.create(new byte[0])), BFTNode.random());
        HashCode hash = hasher.hash(rawVertex);
        VerifiedVertex vertex = new VerifiedVertex(rawVertex, hash);
        lastParentHeader.set(new BFTHeader(view, hash, MOCKED_HEADER));
        lastGrandParentHeader.set(parentHeader);
        lastGreatGrandParentHeader.set(grandParentHeader);
        return vertex;
    };
    this.nextVertex = () -> nextSkippableVertex.apply(false);
}

Example 2 with Ledger

use of com.radixdlt.hotstuff.Ledger in project radixdlt by radixdlt.

the class MockedLedgerModule method syncedLedger.

@Provides
@Singleton
Ledger syncedLedger(TimeSupplier timeSupplier) {
    return new Ledger() {

        @Override
        public Optional<PreparedVertex> prepare(LinkedList<PreparedVertex> previous, VerifiedVertex vertex) {
            final long timestamp = vertex.getQC().getTimestampedSignatures().weightedTimestamp();
            final LedgerHeader ledgerHeader = vertex.getParentHeader().getLedgerHeader().updateViewAndTimestamp(vertex.getView(), timestamp);
            return Optional.of(vertex.withHeader(ledgerHeader, timeSupplier.currentTime()).andTxns(vertex.getTxns().stream().<PreparedTxn>map(MockPrepared::new).toList(), Map.of()));
        }
    };
}