Ejemplo n.º 1
0
// Creates a new log entry associated with a log.
func newLogEntry(log *Log, event *ev, index uint64, term uint64, command Command) (*LogEntry, error) {
	var buf bytes.Buffer
	var commandName string
	if command != nil {
		commandName = command.CommandName()
		if encoder, ok := command.(CommandEncoder); ok {
			if err := encoder.Encode(&buf); err != nil {
				return nil, err
			}
		} else {
			if err := json.NewEncoder(&buf).Encode(command); err != nil {
				return nil, err
			}
		}
	}

	pb := &protobuf.LogEntry{
		Index:       proto.Uint64(index),
		Term:        proto.Uint64(term),
		CommandName: proto.String(commandName),
		Command:     buf.Bytes(),
	}

	e := &LogEntry{
		pb:    pb,
		log:   log,
		event: event,
	}

	return e, nil
}
Ejemplo n.º 2
0
// Encodes the SnapshotRecoveryRequest to a buffer. Returns the number of bytes
// written and any error that may have occurred.
func (req *SnapshotRecoveryRequest) Encode(w io.Writer) (int, error) {

	protoPeers := make([]*protobuf.SnapshotRecoveryRequest_Peer, len(req.Peers))

	for i, peer := range req.Peers {
		protoPeers[i] = &protobuf.SnapshotRecoveryRequest_Peer{
			Name:             proto.String(peer.Name),
			ConnectionString: proto.String(peer.ConnectionString),
		}
	}

	pb := &protobuf.SnapshotRecoveryRequest{
		LeaderName: proto.String(req.LeaderName),
		LastIndex:  proto.Uint64(req.LastIndex),
		LastTerm:   proto.Uint64(req.LastTerm),
		Peers:      protoPeers,
		State:      req.State,
	}
	p, err := proto.Marshal(pb)
	if err != nil {
		return -1, err
	}

	return w.Write(p)
}
// Creates a new AppendEntries response.
func newAppendEntriesResponse(term uint64, success bool, index uint64, commitIndex uint64) *AppendEntriesResponse {
	pb := &protobuf.AppendEntriesResponse{
		Term:        proto.Uint64(term),
		Index:       proto.Uint64(index),
		Success:     proto.Bool(success),
		CommitIndex: proto.Uint64(commitIndex),
	}

	return &AppendEntriesResponse{
		pb: pb,
	}
}
// Encodes the SnapshotRequest to a buffer. Returns the number of bytes
// written and any error that may have occurred.
func (req *SnapshotRequest) Encode(w io.Writer) (int, error) {
	pb := &protobuf.SnapshotRequest{
		LeaderName: proto.String(req.LeaderName),
		LastIndex:  proto.Uint64(req.LastIndex),
		LastTerm:   proto.Uint64(req.LastTerm),
	}
	p, err := proto.Marshal(pb)
	if err != nil {
		return -1, err
	}

	return w.Write(p)
}
Ejemplo n.º 5
0
// Encode writes the response to a writer.
// Returns the number of bytes written and any error that occurs.
func (req *SnapshotRecoveryResponse) Encode(w io.Writer) (int, error) {
	pb := &protobuf.SnapshotRecoveryResponse{
		Term:        proto.Uint64(req.Term),
		Success:     proto.Bool(req.Success),
		CommitIndex: proto.Uint64(req.CommitIndex),
	}
	p, err := proto.Marshal(pb)
	if err != nil {
		return -1, err
	}

	return w.Write(p)
}
Ejemplo n.º 6
0
// Encodes the RequestVoteRequest to a buffer. Returns the number of bytes
// written and any error that may have occurred.
func (req *RequestVoteRequest) Encode(w io.Writer) (int, error) {
	pb := &protobuf.RequestVoteRequest{
		Term:          proto.Uint64(req.Term),
		LastLogIndex:  proto.Uint64(req.LastLogIndex),
		LastLogTerm:   proto.Uint64(req.LastLogTerm),
		CandidateName: proto.String(req.CandidateName),
	}
	p, err := proto.Marshal(pb)
	if err != nil {
		return -1, err
	}

	return w.Write(p)
}
Ejemplo n.º 7
0
// Encodes the AppendEntriesRequest to a buffer. Returns the number of bytes
// written and any error that may have occurred.
func (req *AppendEntriesRequest) Encode(w io.Writer) (int, error) {
	pb := &protobuf.AppendEntriesRequest{
		Term:         proto.Uint64(req.Term),
		PrevLogIndex: proto.Uint64(req.PrevLogIndex),
		PrevLogTerm:  proto.Uint64(req.PrevLogTerm),
		CommitIndex:  proto.Uint64(req.CommitIndex),
		LeaderName:   proto.String(req.LeaderName),
		Entries:      req.Entries,
	}

	p, err := proto.Marshal(pb)
	if err != nil {
		return -1, err
	}

	return w.Write(p)
}
// Encodes the RequestVoteResponse to a buffer. Returns the number of bytes
// written and any error that may have occurred.
func (resp *RequestVoteResponse) Encode(w io.Writer) (int, error) {
	pb := &protobuf.RequestVoteResponse{
		Term:        proto.Uint64(resp.Term),
		VoteGranted: proto.Bool(resp.VoteGranted),
	}

	p, err := proto.Marshal(pb)
	if err != nil {
		return -1, err
	}

	return w.Write(p)
}