Examples with NetworkReadableClosableChannelNetty4 org.neo4j.causalclustering.messaging.NetworkReadableClosableChannelNetty4 used on opensource projects

Example 11 with NetworkReadableClosableChannelNetty4

use of org.neo4j.causalclustering.messaging.NetworkReadableClosableChannelNetty4 in project neo4j by neo4j.

the class RaftMessageDecoder method decode.

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf buffer, List<Object> list) throws Exception {
    ReadableChannel channel = new NetworkReadableClosableChannelNetty4(buffer);
    ClusterId clusterId = ClusterId.Marshal.INSTANCE.unmarshal(channel);
    int messageTypeWire = channel.getInt();
    RaftMessages.Type[] values = RaftMessages.Type.values();
    RaftMessages.Type messageType = values[messageTypeWire];
    MemberId from = retrieveMember(channel);
    RaftMessages.RaftMessage result;
    if (messageType.equals(VOTE_REQUEST)) {
        MemberId candidate = retrieveMember(channel);
        long term = channel.getLong();
        long lastLogIndex = channel.getLong();
        long lastLogTerm = channel.getLong();
        result = new RaftMessages.Vote.Request(from, term, candidate, lastLogIndex, lastLogTerm);
    } else if (messageType.equals(VOTE_RESPONSE)) {
        long term = channel.getLong();
        boolean voteGranted = channel.get() == 1;
        result = new RaftMessages.Vote.Response(from, term, voteGranted);
    } else if (messageType.equals(APPEND_ENTRIES_REQUEST)) {
        // how many
        long term = channel.getLong();
        long prevLogIndex = channel.getLong();
        long prevLogTerm = channel.getLong();
        long leaderCommit = channel.getLong();
        long count = channel.getLong();
        RaftLogEntry[] entries = new RaftLogEntry[(int) count];
        for (int i = 0; i < count; i++) {
            long entryTerm = channel.getLong();
            final ReplicatedContent content = marshal.unmarshal(channel);
            entries[i] = new RaftLogEntry(entryTerm, content);
        }
        result = new RaftMessages.AppendEntries.Request(from, term, prevLogIndex, prevLogTerm, entries, leaderCommit);
    } else if (messageType.equals(APPEND_ENTRIES_RESPONSE)) {
        long term = channel.getLong();
        boolean success = channel.get() == 1;
        long matchIndex = channel.getLong();
        long appendIndex = channel.getLong();
        result = new RaftMessages.AppendEntries.Response(from, term, success, matchIndex, appendIndex);
    } else if (messageType.equals(NEW_ENTRY_REQUEST)) {
        ReplicatedContent content = marshal.unmarshal(channel);
        result = new RaftMessages.NewEntry.Request(from, content);
    } else if (messageType.equals(HEARTBEAT)) {
        long leaderTerm = channel.getLong();
        long commitIndexTerm = channel.getLong();
        long commitIndex = channel.getLong();
        result = new RaftMessages.Heartbeat(from, leaderTerm, commitIndex, commitIndexTerm);
    } else if (messageType.equals(HEARTBEAT_RESPONSE)) {
        result = new RaftMessages.HeartbeatResponse(from);
    } else if (messageType.equals(LOG_COMPACTION_INFO)) {
        long leaderTerm = channel.getLong();
        long prevIndex = channel.getLong();
        result = new RaftMessages.LogCompactionInfo(from, leaderTerm, prevIndex);
    } else {
        throw new IllegalArgumentException("Unknown message type");
    }
    list.add(new RaftMessages.ClusterIdAwareMessage(clusterId, result));
}

Example 12 with NetworkReadableClosableChannelNetty4

use of org.neo4j.causalclustering.messaging.NetworkReadableClosableChannelNetty4 in project neo4j by neo4j.

the class ReplicatedTransactionFactory method extractTransactionRepresentation.

public static TransactionRepresentation extractTransactionRepresentation(ReplicatedTransaction transactionCommand, byte[] extraHeader) {
    ByteBuf txBuffer = Unpooled.wrappedBuffer(transactionCommand.getTxBytes());
    NetworkReadableClosableChannelNetty4 channel = new NetworkReadableClosableChannelNetty4(txBuffer);
    try {
        return read(channel, extraHeader);
    } catch (IOException e) {
        // Easier said than done though, we use the LogEntry handling routines which throw IOException
        throw new RuntimeException(e);
    }
}

Example 13 with NetworkReadableClosableChannelNetty4

use of org.neo4j.causalclustering.messaging.NetworkReadableClosableChannelNetty4 in project neo4j by neo4j.

the class RaftMembershipStateTest method shouldMarshalCorrectly.

@Test
public void shouldMarshalCorrectly() throws Exception {
    // given
    RaftMembershipState.Marshal marshal = new RaftMembershipState.Marshal();
    state = new RaftMembershipState(5, new MembershipEntry(7, membersA), new MembershipEntry(8, membersB));
    // when
    ByteBuf buffer = Unpooled.buffer(1_000);
    marshal.marshal(state, new NetworkFlushableChannelNetty4(buffer));
    final RaftMembershipState recovered = marshal.unmarshal(new NetworkReadableClosableChannelNetty4(buffer));
    // then
    assertEquals(state, recovered);
}