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Implement/external grpc handler (#251)
* implement statesync handler and add some manifests * add Dockerfile * fix * refactor kvs * add iroiro * fix * fix ci * fix tests * implement block handler * Commit from GitHub Actions (compile_PB) * fix ci * fix deadlock * add godoc * fix * fix ci Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,64 +1,16 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "log" | ||
| "ueckoken/plarail2022-external/internal" | ||
| "ueckoken/plarail2022-external/pkg/envStore" | ||
| "ueckoken/plarail2022-external/pkg/syncController" | ||
|
|
||
| "github.com/prometheus/client_golang/prometheus" | ||
| "go.uber.org/zap" | ||
| ) | ||
|
|
||
| const namespace = "plarailexternal" | ||
|
|
||
| func main() { | ||
| clientHandler2syncController := make(chan syncController.StationState, 16) | ||
| syncController2clientHandler := make(chan syncController.StationState, 64) | ||
| initEspStatus2syncController := make(chan syncController.StationState) | ||
|
|
||
| envVal := envStore.GetEnv() | ||
|
|
||
| clientConn := prometheus.NewGaugeVec( | ||
| prometheus.GaugeOpts{ | ||
| Namespace: namespace, | ||
| Name: "clients_connections_seconds", | ||
| Help: "Number of connections handling websocket", | ||
| }, | ||
| []string{}, | ||
| ) | ||
|
|
||
| clientConnTotal := prometheus.NewCounterVec( | ||
| prometheus.CounterOpts{ | ||
| Namespace: namespace, | ||
| Name: "clients_connections_total", | ||
| Help: "Total client connection", | ||
| }, | ||
| []string{}, | ||
| ) | ||
|
|
||
| controlCommandTotal := prometheus.NewCounterVec( | ||
| prometheus.CounterOpts{ | ||
| Namespace: namespace, | ||
| Name: "client_commands_total", | ||
| Help: "Total client commands", | ||
| }, | ||
| []string{}, | ||
| ) | ||
|
|
||
| httpServer := internal.HTTPServer{ | ||
| ClientHandler2syncController: clientHandler2syncController, | ||
| SyncController2clientHandler: syncController2clientHandler, | ||
| Environment: envVal, | ||
| NumberOfClientConnection: clientConn, | ||
| TotalClientConnection: clientConnTotal, | ||
| TotalCLientCommands: controlCommandTotal, | ||
| Clients: &internal.ClientsCollection{}, | ||
| } | ||
| syncController := syncController.SyncController{ | ||
| ClientHandler2syncController: clientHandler2syncController, | ||
| SyncController2clientHandler: syncController2clientHandler, | ||
| Environment: envVal, | ||
| InitServoRoute: initEspStatus2syncController, | ||
| logger, err := zap.NewDevelopment() | ||
| if err != nil { | ||
| log.Fatalln("failed to initialize zap") | ||
| } | ||
| go httpServer.StartServer() | ||
| syncController.StartSyncController() | ||
| internal.Run(logger) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,14 @@ | ||
| package internal | ||
|
|
||
| import ( | ||
| "go.uber.org/zap" | ||
| "ueckoken/plarail2022-external/pkg/synccontroller" | ||
| "ueckoken/plarail2022-external/spec" | ||
| ) | ||
|
|
||
| // startBlockSync starts sync controller for block state. | ||
| func startBlockSync(logger *zap.Logger, syncInput chan synccontroller.KV[spec.Blocks_BlockId, spec.NotifyStateRequest_State], syncOutput chan<- synccontroller.KV[spec.Blocks_BlockId, spec.NotifyStateRequest_State]) { | ||
| s := synccontroller.NewSyncController(logger, syncInput, syncOutput) | ||
|
|
||
| go s.Run() | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,123 @@ | ||
| package internal | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "net" | ||
| "ueckoken/plarail2022-external/pkg/envStore" | ||
| "ueckoken/plarail2022-external/pkg/synccontroller" | ||
| "ueckoken/plarail2022-external/spec" | ||
|
|
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| "go.uber.org/zap" | ||
| "google.golang.org/grpc" | ||
| "google.golang.org/grpc/credentials/insecure" | ||
| ) | ||
|
|
||
| // GrpcStateHandler is a handler for gRPC. | ||
| type GrpcStateHandler struct { | ||
| logger *zap.Logger | ||
| env *envStore.Env | ||
| spec.UnimplementedControlServer | ||
| stateOutput chan<- synccontroller.KV[spec.Stations_StationId, spec.Command2InternalRequest_State] | ||
| stateInput <-chan synccontroller.KV[spec.Stations_StationId, spec.Command2InternalRequest_State] | ||
| } | ||
|
|
||
| // NewGrpcHandler creates gRPC handler. | ||
| func NewGrpcHandler(logger *zap.Logger, env *envStore.Env, stateOutput chan<- synccontroller.KV[spec.Stations_StationId, spec.Command2InternalRequest_State], stateInput <-chan synccontroller.KV[spec.Stations_StationId, spec.Command2InternalRequest_State]) *GrpcStateHandler { | ||
| return &GrpcStateHandler{logger: logger, env: env, stateOutput: stateOutput, stateInput: stateInput} | ||
| } | ||
|
|
||
| // Command2Internal handles requests from ATS. | ||
| func (g GrpcStateHandler) Command2Internal(_ context.Context, req *spec.RequestSync) (*spec.ResponseSync, error) { | ||
| s := synccontroller.KV[spec.Stations_StationId, spec.Command2InternalRequest_State]{ | ||
| Key: req.GetStation().GetStationId(), | ||
| Value: spec.Command2InternalRequest_State(req.GetState()), | ||
| } | ||
| g.stateOutput <- s | ||
| return &spec.ResponseSync{Response: spec.ResponseSync_SUCCESS}, nil | ||
| } | ||
|
|
||
| // / handleInput transmits changes received in channel to ATS. | ||
| func (g GrpcStateHandler) handleInput(ctx context.Context) { | ||
| con, err := grpc.DialContext(ctx, g.env.ClientSideServer.ATSAddress.String(), | ||
| grpc.WithTransportCredentials(insecure.NewCredentials()), | ||
| ) | ||
| if err != nil { | ||
| g.logger.Error("failed to connect ATS", zap.Error(err)) | ||
| } | ||
| defer con.Close() | ||
| for d := range g.stateInput { | ||
| client := spec.NewControlClient(con) | ||
| req := &spec.RequestSync{ | ||
| Station: &spec.Stations{StationId: d.Key}, | ||
| State: spec.RequestSync_State(d.Value), | ||
| } | ||
| res, err := client.Command2Internal(ctx, req) | ||
| if err != nil { | ||
| g.logger.Error("failed to send data to ATS", zap.Any("payload", req), zap.Error(err)) | ||
| } | ||
| if res.GetResponse() != spec.ResponseSync_SUCCESS { | ||
| g.logger.Error("ATS response seems to be unsuccessfull", zap.Any("payload", res.GetResponse())) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| type GrpcBlockHandler struct { | ||
| env *envStore.Env | ||
| logger *zap.Logger | ||
| spec.UnimplementedBlockStateSyncServer | ||
| stateOutput chan<- synccontroller.KV[spec.Blocks_BlockId, spec.NotifyStateRequest_State] | ||
| stateInput <-chan synccontroller.KV[spec.Blocks_BlockId, spec.NotifyStateRequest_State] | ||
| } | ||
|
|
||
| // NewGrpcBlockHandler creates gRPC handler. | ||
| func NewGrpcBlockHandler(logger *zap.Logger, env *envStore.Env, stateOutput chan<- synccontroller.KV[spec.Blocks_BlockId, spec.NotifyStateRequest_State], stateInput <-chan synccontroller.KV[spec.Blocks_BlockId, spec.NotifyStateRequest_State]) *GrpcBlockHandler { | ||
| return &GrpcBlockHandler{logger: logger, env: env, stateOutput: stateOutput, stateInput: stateInput} | ||
| } | ||
|
|
||
| // NotifyState handles requests from ATS. | ||
| func (g GrpcBlockHandler) NotifyState(_ context.Context, req *spec.NotifyStateRequest) (*spec.NotifyStateResponse, error) { | ||
| g.stateOutput <- synccontroller.KV[spec.Blocks_BlockId, spec.NotifyStateRequest_State]{Key: req.GetBlock().GetBlockId(), Value: req.GetState()} | ||
| return &spec.NotifyStateResponse{Response: spec.NotifyStateResponse_SUCCESS}, nil | ||
| } | ||
|
|
||
| // handleInput transmits changes received in channel to ATS. | ||
| func (g GrpcBlockHandler) handleInput(ctx context.Context) { | ||
| con, err := grpc.DialContext(ctx, g.env.ClientSideServer.ATSAddress.String(), | ||
| grpc.WithTransportCredentials(insecure.NewCredentials()), | ||
| ) | ||
| if err != nil { | ||
| g.logger.Error("failed to connect ATS", zap.Error(err)) | ||
| } | ||
| defer con.Close() | ||
| for d := range g.stateInput { | ||
| client := spec.NewBlockStateSyncClient(con) | ||
| req := &spec.NotifyStateRequest{ | ||
| Block: &spec.Blocks{BlockId: d.Key}, | ||
| State: d.Value, | ||
| } | ||
| res, err := client.NotifyState(ctx, req) | ||
| if err != nil { | ||
| g.logger.Error("failed to send data to ATS", zap.Any("payload", req), zap.Error(err)) | ||
| } | ||
| if res.GetResponse() != spec.NotifyStateResponse_SUCCESS { | ||
| g.logger.Error("ATS response seems to be unsuccessfull", zap.Any("payload", res.GetResponse())) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // GRPCListenAndServe listens and serve. | ||
| func GRPCListenAndServe(ctx context.Context, logger *zap.Logger, port uint, handler *GrpcStateHandler, blockhandler *GrpcBlockHandler) { | ||
| lis, err := net.Listen("tcp", fmt.Sprintf(":%d", port)) | ||
| if err != nil { | ||
| logger.Panic("failed to listen", zap.Error(err)) | ||
| } | ||
| go handler.handleInput(ctx) | ||
| go blockhandler.handleInput(ctx) | ||
| s := grpc.NewServer() | ||
| spec.RegisterControlServer(s, handler) | ||
| spec.RegisterBlockStateSyncServer(s, blockhandler) | ||
| if err := s.Serve(lis); err != nil { | ||
| logger.Panic("failed to server", zap.Error(err)) | ||
| } | ||
| } |
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