Esempio n. 1
0
func (s *ThriftServer) Start() (err error) {
	processor := wire.NewBarProcessor(s.Handler)

	var transport t_thrift.TServerTransport
	if transport, err = t_thrift.NewTServerSocket(s.options.Bind); err != nil {
		return
	}
	protoFactory := t_thrift.NewTBinaryProtocolFactoryDefault()
	transportFactory := t_thrift.NewTBufferedTransportFactory(
		s.BufferSize)
	s.TServer = t_thrift.NewTSimpleServer4(processor, transport,
		transportFactory, protoFactory)

	logx.Debugf("thrift listening at %s", s.options.Info.RPCEndpoints[0])

	errChan := make(chan error, 1)
	go func() {
		errChan <- s.TServer.Serve()

	}()
	defer s.TServer.Stop()
	defer s.cancel()

	select {
	case <-s.ctx.Done():
		return
	case err = <-errChan:
		return
	}
	return
}
Esempio n. 2
0
// Serve requests
func (s *TServer) Serve() error {
	var transport thrift.TServerTransport
	transport, err := thrift.NewTServerSocket(s.Bind)
	if err != nil {
		return err
	}
	s.server = thrift.NewTSimpleServer4(s.GetProcessor(), transport,
		s.TransportFactory, s.ProtoFactory)

	logx.Infof("serving %s", s)
	return s.server.Serve()
}
Esempio n. 3
0
func NewTRpcServer(listen string, handler thrift.TProcessor, prot thrift.TProtocolFactory) (*TRpcServer, error) {
	transport, err := thrift.NewTServerSocket(listen)

	if err != nil {
		return nil, err
	}
	server := thrift.NewTSimpleServer4(
		handler,
		transport,
		thrift.NewTFramedTransportFactory(thrift.NewTTransportFactory()),
		prot,
	)

	return &TRpcServer{server, transport}, nil
}
Esempio n. 4
0
func main() {

	transportFactory := thrift.NewTFramedTransportFactory(thrift.NewTTransportFactory())
	protocolFactory := thrift.NewTBinaryProtocolFactoryDefault()

	serverTransport, err := thrift.NewTServerSocket(NetworkAddr)
	if err != nil {
		fmt.Println("new socket fail")
	}
	handler := &BsServiceImpl{}
	processor := bs.NewBSServiceProcessor(handler)

	server := thrift.NewTSimpleServer4(processor, serverTransport, transportFactory, protocolFactory)
	fmt.Println("server start")
	server.Serve()

}
Esempio n. 5
0
func (s *TServer) Start(transportFactory thrift.TTransportFactory) (err error) {
	if s.Port, err = fixtures.GetOpenPort(); err != nil {
		return
	}

	protoFactory := thrift.NewTBinaryProtocolFactoryDefault()
	processor := srv.NewTSrvProcessor(&service{})

	var transport thrift.TServerTransport
	if transport, err = thrift.NewTServerSocket(fmt.Sprintf(":%d", s.Port)); err != nil {
		return
	}
	s.Server = thrift.NewTSimpleServer4(processor, transport,
		transportFactory, protoFactory)
	go s.Server.Serve()
	time.Sleep(time.Millisecond * 100)
	return
}
Esempio n. 6
0
func newScribeServer(t *testing.T) *scribeServer {
	protocolFactory := thrift.NewTBinaryProtocolFactoryDefault()
	transportFactory := thrift.NewTFramedTransportFactory(thrift.NewTTransportFactory())

	var port int
	var transport *thrift.TServerSocket
	var err error
	for i := 0; i < 10; i++ {
		port = 10000 + rand.Intn(10000)
		transport, err = thrift.NewTServerSocket(fmt.Sprintf(":%d", port))
		if err != nil {
			t.Logf("port %d: %v", port, err)
			continue
		}
		break
	}
	if err != nil {
		t.Fatal(err)
	}

	handler := newScribeHandler(t)
	server := thrift.NewTSimpleServer4(
		scribe.NewScribeProcessor(handler),
		transport,
		transportFactory,
		protocolFactory,
	)

	go server.Serve()

	deadline := time.Now().Add(time.Second)
	for !canConnect(port) {
		if time.Now().After(deadline) {
			t.Fatal("server never started")
		}
		time.Sleep(time.Millisecond)
	}

	return &scribeServer{
		transport: transport,
		address:   fmt.Sprintf("127.0.0.1:%d", port),
		handler:   handler,
	}
}
Esempio n. 7
0
func main() {
	// Flag domain. Note that gRPC transitively registers flags via its import
	// of glog. So, we define a new flag set, to keep those domains distinct.
	fs := flag.NewFlagSet("", flag.ExitOnError)
	var (
		debugAddr                    = fs.String("debug.addr", ":8000", "Address for HTTP debug/instrumentation server")
		httpAddr                     = fs.String("http.addr", ":8001", "Address for HTTP (JSON) server")
		grpcAddr                     = fs.String("grpc.addr", ":8002", "Address for gRPC server")
		netrpcAddr                   = fs.String("netrpc.addr", ":8003", "Address for net/rpc server")
		thriftAddr                   = fs.String("thrift.addr", ":8004", "Address for Thrift server")
		thriftProtocol               = fs.String("thrift.protocol", "binary", "binary, compact, json, simplejson")
		thriftBufferSize             = fs.Int("thrift.buffer.size", 0, "0 for unbuffered")
		thriftFramed                 = fs.Bool("thrift.framed", false, "true to enable framing")
		zipkinHostPort               = fs.String("zipkin.host.port", "my.service.domain:12345", "Zipkin host:port")
		zipkinServiceName            = fs.String("zipkin.service.name", "addsvc", "Zipkin service name")
		zipkinCollectorAddr          = fs.String("zipkin.collector.addr", "", "Zipkin Scribe collector address (empty will log spans)")
		zipkinCollectorTimeout       = fs.Duration("zipkin.collector.timeout", time.Second, "Zipkin collector timeout")
		zipkinCollectorBatchSize     = fs.Int("zipkin.collector.batch.size", 100, "Zipkin collector batch size")
		zipkinCollectorBatchInterval = fs.Duration("zipkin.collector.batch.interval", time.Second, "Zipkin collector batch interval")
	)
	flag.Usage = fs.Usage // only show our flags
	if err := fs.Parse(os.Args[1:]); err != nil {
		fmt.Fprintf(os.Stderr, "%v", err)
		os.Exit(1)
	}

	// package log
	var logger log.Logger
	{
		logger = log.NewLogfmtLogger(os.Stderr)
		logger = log.NewContext(logger).With("ts", log.DefaultTimestampUTC).With("caller", log.DefaultCaller)
		stdlog.SetFlags(0)                             // flags are handled by Go kit's logger
		stdlog.SetOutput(log.NewStdlibAdapter(logger)) // redirect anything using stdlib log to us
	}

	// package metrics
	var requestDuration metrics.TimeHistogram
	{
		requestDuration = metrics.NewTimeHistogram(time.Nanosecond, metrics.NewMultiHistogram(
			expvar.NewHistogram("request_duration_ns", 0, 5e9, 1, 50, 95, 99),
			prometheus.NewSummary(stdprometheus.SummaryOpts{
				Namespace: "myorg",
				Subsystem: "addsvc",
				Name:      "duration_ns",
				Help:      "Request duration in nanoseconds.",
			}, []string{"method"}),
		))
	}

	// package tracing
	var collector zipkin.Collector
	{
		zipkinLogger := log.NewContext(logger).With("component", "zipkin")
		collector = loggingCollector{zipkinLogger} // TODO(pb)
		if *zipkinCollectorAddr != "" {
			var err error
			if collector, err = zipkin.NewScribeCollector(
				*zipkinCollectorAddr,
				*zipkinCollectorTimeout,
				zipkin.ScribeBatchSize(*zipkinCollectorBatchSize),
				zipkin.ScribeBatchInterval(*zipkinCollectorBatchInterval),
				zipkin.ScribeLogger(zipkinLogger),
			); err != nil {
				zipkinLogger.Log("err", err)
				os.Exit(1)
			}
		}
	}

	// Business domain
	var svc server.AddService
	{
		svc = pureAddService{}
		svc = loggingMiddleware{svc, logger}
		svc = instrumentingMiddleware{svc, requestDuration}
	}

	// Mechanical stuff
	rand.Seed(time.Now().UnixNano())
	root := context.Background()
	errc := make(chan error)

	go func() {
		errc <- interrupt()
	}()

	// Debug/instrumentation
	go func() {
		transportLogger := log.NewContext(logger).With("transport", "debug")
		transportLogger.Log("addr", *debugAddr)
		errc <- http.ListenAndServe(*debugAddr, nil) // DefaultServeMux
	}()

	// Transport: HTTP/JSON
	go func() {
		var (
			transportLogger = log.NewContext(logger).With("transport", "HTTP/JSON")
			tracingLogger   = log.NewContext(transportLogger).With("component", "tracing")
			newSumSpan      = zipkin.MakeNewSpanFunc(*zipkinHostPort, *zipkinServiceName, "sum")
			newConcatSpan   = zipkin.MakeNewSpanFunc(*zipkinHostPort, *zipkinServiceName, "concat")
			traceSum        = zipkin.ToContext(newSumSpan, tracingLogger)
			traceConcat     = zipkin.ToContext(newConcatSpan, tracingLogger)
			mux             = http.NewServeMux()
			sum, concat     endpoint.Endpoint
		)

		sum = makeSumEndpoint(svc)
		sum = zipkin.AnnotateServer(newSumSpan, collector)(sum)
		mux.Handle("/sum", httptransport.NewServer(
			root,
			sum,
			server.DecodeSumRequest,
			server.EncodeSumResponse,
			httptransport.ServerBefore(traceSum),
			httptransport.ServerErrorLogger(transportLogger),
		))

		concat = makeConcatEndpoint(svc)
		concat = zipkin.AnnotateServer(newConcatSpan, collector)(concat)
		mux.Handle("/concat", httptransport.NewServer(
			root,
			concat,
			server.DecodeConcatRequest,
			server.EncodeConcatResponse,
			httptransport.ServerBefore(traceConcat),
			httptransport.ServerErrorLogger(transportLogger),
		))

		transportLogger.Log("addr", *httpAddr)
		errc <- http.ListenAndServe(*httpAddr, mux)
	}()

	// Transport: gRPC
	go func() {
		transportLogger := log.NewContext(logger).With("transport", "gRPC")
		ln, err := net.Listen("tcp", *grpcAddr)
		if err != nil {
			errc <- err
			return
		}
		s := grpc.NewServer() // uses its own, internal context
		pb.RegisterAddServer(s, grpcBinding{svc})
		transportLogger.Log("addr", *grpcAddr)
		errc <- s.Serve(ln)
	}()

	// Transport: net/rpc
	go func() {
		transportLogger := log.NewContext(logger).With("transport", "net/rpc")
		s := rpc.NewServer()
		if err := s.RegisterName("addsvc", netrpcBinding{svc}); err != nil {
			errc <- err
			return
		}
		s.HandleHTTP(rpc.DefaultRPCPath, rpc.DefaultDebugPath)
		transportLogger.Log("addr", *netrpcAddr)
		errc <- http.ListenAndServe(*netrpcAddr, s)
	}()

	// Transport: Thrift
	go func() {
		var protocolFactory thrift.TProtocolFactory
		switch *thriftProtocol {
		case "binary":
			protocolFactory = thrift.NewTBinaryProtocolFactoryDefault()
		case "compact":
			protocolFactory = thrift.NewTCompactProtocolFactory()
		case "json":
			protocolFactory = thrift.NewTJSONProtocolFactory()
		case "simplejson":
			protocolFactory = thrift.NewTSimpleJSONProtocolFactory()
		default:
			errc <- fmt.Errorf("invalid Thrift protocol %q", *thriftProtocol)
			return
		}
		var transportFactory thrift.TTransportFactory
		if *thriftBufferSize > 0 {
			transportFactory = thrift.NewTBufferedTransportFactory(*thriftBufferSize)
		} else {
			transportFactory = thrift.NewTTransportFactory()
		}
		if *thriftFramed {
			transportFactory = thrift.NewTFramedTransportFactory(transportFactory)
		}
		transport, err := thrift.NewTServerSocket(*thriftAddr)
		if err != nil {
			errc <- err
			return
		}
		transportLogger := log.NewContext(logger).With("transport", "net/rpc")
		transportLogger.Log("addr", *thriftAddr)
		errc <- thrift.NewTSimpleServer4(
			thriftadd.NewAddServiceProcessor(thriftBinding{svc}),
			transport,
			transportFactory,
			protocolFactory,
		).Serve()
	}()

	logger.Log("fatal", <-errc)
}
Esempio n. 8
0
File: main.go Progetto: EthanK28/kit
func main() {
	// Flag domain. Note that gRPC transitively registers flags via its import
	// of glog. So, we define a new flag set, to keep those domains distinct.
	fs := flag.NewFlagSet("", flag.ExitOnError)
	var (
		debugAddr        = fs.String("debug.addr", ":8000", "Address for HTTP debug/instrumentation server")
		httpAddr         = fs.String("http.addr", ":8001", "Address for HTTP (JSON) server")
		grpcAddr         = fs.String("grpc.addr", ":8002", "Address for gRPC server")
		netrpcAddr       = fs.String("netrpc.addr", ":8003", "Address for net/rpc server")
		thriftAddr       = fs.String("thrift.addr", ":8004", "Address for Thrift server")
		thriftProtocol   = fs.String("thrift.protocol", "binary", "binary, compact, json, simplejson")
		thriftBufferSize = fs.Int("thrift.buffer.size", 0, "0 for unbuffered")
		thriftFramed     = fs.Bool("thrift.framed", false, "true to enable framing")

		proxyHTTPAddr = fs.String("proxy.http.url", "", "if set, proxy requests over HTTP to this addsvc")

		zipkinServiceName            = fs.String("zipkin.service.name", "addsvc", "Zipkin service name")
		zipkinCollectorAddr          = fs.String("zipkin.collector.addr", "", "Zipkin Scribe collector address (empty will log spans)")
		zipkinCollectorTimeout       = fs.Duration("zipkin.collector.timeout", time.Second, "Zipkin collector timeout")
		zipkinCollectorBatchSize     = fs.Int("zipkin.collector.batch.size", 100, "Zipkin collector batch size")
		zipkinCollectorBatchInterval = fs.Duration("zipkin.collector.batch.interval", time.Second, "Zipkin collector batch interval")
	)
	flag.Usage = fs.Usage // only show our flags
	fs.Parse(os.Args[1:])

	// `package log` domain
	var logger kitlog.Logger
	logger = kitlog.NewLogfmtLogger(os.Stderr)
	logger = kitlog.With(logger, "ts", kitlog.DefaultTimestampUTC)
	stdlog.SetOutput(kitlog.NewStdlibAdapter(logger)) // redirect stdlib logging to us
	stdlog.SetFlags(0)                                // flags are handled in our logger

	// `package metrics` domain
	requests := metrics.NewMultiCounter(
		expvar.NewCounter("requests"),
		statsd.NewCounter(ioutil.Discard, "requests_total", time.Second),
		prometheus.NewCounter(stdprometheus.CounterOpts{
			Namespace: "addsvc",
			Subsystem: "add",
			Name:      "requests_total",
			Help:      "Total number of received requests.",
		}, []string{}),
	)
	duration := metrics.NewTimeHistogram(time.Nanosecond, metrics.NewMultiHistogram(
		expvar.NewHistogram("duration_nanoseconds_total", 0, 1e9, 3, 50, 95, 99),
		statsd.NewHistogram(ioutil.Discard, "duration_nanoseconds_total", time.Second),
		prometheus.NewSummary(stdprometheus.SummaryOpts{
			Namespace: "addsvc",
			Subsystem: "add",
			Name:      "duration_nanoseconds_total",
			Help:      "Total nanoseconds spend serving requests.",
		}, []string{}),
	))

	// `package tracing` domain
	zipkinHostPort := "localhost:1234" // TODO Zipkin makes overly simple assumptions about services
	var zipkinCollector zipkin.Collector = loggingCollector{logger}
	if *zipkinCollectorAddr != "" {
		var err error
		if zipkinCollector, err = zipkin.NewScribeCollector(
			*zipkinCollectorAddr,
			*zipkinCollectorTimeout,
			*zipkinCollectorBatchSize,
			*zipkinCollectorBatchInterval,
		); err != nil {
			logger.Log("err", err)
			os.Exit(1)
		}
	}
	zipkinMethodName := "add"
	zipkinSpanFunc := zipkin.MakeNewSpanFunc(zipkinHostPort, *zipkinServiceName, zipkinMethodName)
	zipkin.Log.Swap(logger) // log diagnostic/error details

	// Our business and operational domain
	var a Add = pureAdd
	if *proxyHTTPAddr != "" {
		var e endpoint.Endpoint
		e = httpclient.NewClient("GET", *proxyHTTPAddr, zipkin.ToRequest(zipkinSpanFunc))
		e = zipkin.AnnotateClient(zipkinSpanFunc, zipkinCollector)(e)
		a = proxyAdd(e, logger)
	}
	a = logging(logger)(a)
	a = instrument(requests, duration)(a)

	// Server domain
	var e endpoint.Endpoint
	e = makeEndpoint(a)
	e = zipkin.AnnotateServer(zipkinSpanFunc, zipkinCollector)(e)

	// Mechanical stuff
	rand.Seed(time.Now().UnixNano())
	root := context.Background()
	errc := make(chan error)

	go func() {
		errc <- interrupt()
	}()

	// Transport: HTTP (debug/instrumentation)
	go func() {
		logger.Log("addr", *debugAddr, "transport", "debug")
		errc <- http.ListenAndServe(*debugAddr, nil)
	}()

	// Transport: HTTP (JSON)
	go func() {
		ctx, cancel := context.WithCancel(root)
		defer cancel()
		before := []httptransport.BeforeFunc{zipkin.ToContext(zipkinSpanFunc)}
		after := []httptransport.AfterFunc{}
		handler := makeHTTPBinding(ctx, e, before, after)
		logger.Log("addr", *httpAddr, "transport", "HTTP/JSON")
		errc <- http.ListenAndServe(*httpAddr, handler)
	}()

	// Transport: gRPC
	go func() {
		ln, err := net.Listen("tcp", *grpcAddr)
		if err != nil {
			errc <- err
			return
		}
		s := grpc.NewServer() // uses its own context?
		pb.RegisterAddServer(s, grpcBinding{e})
		logger.Log("addr", *grpcAddr, "transport", "gRPC")
		errc <- s.Serve(ln)
	}()

	// Transport: net/rpc
	go func() {
		ctx, cancel := context.WithCancel(root)
		defer cancel()
		s := rpc.NewServer()
		s.RegisterName("addsvc", NetrpcBinding{ctx, e})
		s.HandleHTTP(rpc.DefaultRPCPath, rpc.DefaultDebugPath)
		logger.Log("addr", *netrpcAddr, "transport", "net/rpc")
		errc <- http.ListenAndServe(*netrpcAddr, s)
	}()

	// Transport: Thrift
	go func() {
		ctx, cancel := context.WithCancel(root)
		defer cancel()

		var protocolFactory thrift.TProtocolFactory
		switch *thriftProtocol {
		case "binary":
			protocolFactory = thrift.NewTBinaryProtocolFactoryDefault()
		case "compact":
			protocolFactory = thrift.NewTCompactProtocolFactory()
		case "json":
			protocolFactory = thrift.NewTJSONProtocolFactory()
		case "simplejson":
			protocolFactory = thrift.NewTSimpleJSONProtocolFactory()
		default:
			errc <- fmt.Errorf("invalid Thrift protocol %q", *thriftProtocol)
			return
		}

		var transportFactory thrift.TTransportFactory
		if *thriftBufferSize > 0 {
			transportFactory = thrift.NewTBufferedTransportFactory(*thriftBufferSize)
		} else {
			transportFactory = thrift.NewTTransportFactory()
		}

		if *thriftFramed {
			transportFactory = thrift.NewTFramedTransportFactory(transportFactory)
		}

		transport, err := thrift.NewTServerSocket(*thriftAddr)
		if err != nil {
			errc <- err
			return
		}

		logger.Log("addr", *thriftAddr, "transport", "Thrift")
		errc <- thrift.NewTSimpleServer4(
			thriftadd.NewAddServiceProcessor(thriftBinding{ctx, e}),
			transport,
			transportFactory,
			protocolFactory,
		).Serve()
	}()

	logger.Log("fatal", <-errc)
}
Esempio n. 9
0
File: main.go Progetto: zyanho/kit
func main() {
	// Flag domain. Note that gRPC transitively registers flags via its import
	// of glog. So, we define a new flag set, to keep those domains distinct.
	fs := flag.NewFlagSet("", flag.ExitOnError)
	var (
		debugAddr        = fs.String("debug.addr", ":8000", "Address for HTTP debug/instrumentation server")
		httpAddr         = fs.String("http.addr", ":8001", "Address for HTTP (JSON) server")
		grpcAddr         = fs.String("grpc.addr", ":8002", "Address for gRPC server")
		netrpcAddr       = fs.String("netrpc.addr", ":8003", "Address for net/rpc server")
		thriftAddr       = fs.String("thrift.addr", ":8004", "Address for Thrift server")
		thriftProtocol   = fs.String("thrift.protocol", "binary", "binary, compact, json, simplejson")
		thriftBufferSize = fs.Int("thrift.buffer.size", 0, "0 for unbuffered")
		thriftFramed     = fs.Bool("thrift.framed", false, "true to enable framing")

		// Supported OpenTracing backends
		zipkinAddr           = fs.String("zipkin.kafka.addr", "", "Enable Zipkin tracing via a Kafka server host:port")
		appdashAddr          = fs.String("appdash.addr", "", "Enable Appdash tracing via an Appdash server host:port")
		lightstepAccessToken = fs.String("lightstep.token", "", "Enable LightStep tracing via a LightStep access token")
	)
	flag.Usage = fs.Usage // only show our flags
	if err := fs.Parse(os.Args[1:]); err != nil {
		fmt.Fprintf(os.Stderr, "%v", err)
		os.Exit(1)
	}

	// package log
	var logger log.Logger
	{
		logger = log.NewLogfmtLogger(os.Stderr)
		logger = log.NewContext(logger).With("ts", log.DefaultTimestampUTC).With("caller", log.DefaultCaller)
		stdlog.SetFlags(0)                             // flags are handled by Go kit's logger
		stdlog.SetOutput(log.NewStdlibAdapter(logger)) // redirect anything using stdlib log to us
	}

	// package metrics
	var requestDuration metrics.TimeHistogram
	{
		requestDuration = metrics.NewTimeHistogram(time.Nanosecond, metrics.NewMultiHistogram(
			"request_duration_ns",
			expvar.NewHistogram("request_duration_ns", 0, 5e9, 1, 50, 95, 99),
			prometheus.NewSummary(stdprometheus.SummaryOpts{
				Namespace: "myorg",
				Subsystem: "addsvc",
				Name:      "duration_ns",
				Help:      "Request duration in nanoseconds.",
			}, []string{"method"}),
		))
	}

	// Set up OpenTracing
	var tracer opentracing.Tracer
	{
		switch {
		case *appdashAddr != "" && *lightstepAccessToken == "" && *zipkinAddr == "":
			tracer = appdashot.NewTracer(appdash.NewRemoteCollector(*appdashAddr))
		case *appdashAddr == "" && *lightstepAccessToken != "" && *zipkinAddr == "":
			tracer = lightstep.NewTracer(lightstep.Options{
				AccessToken: *lightstepAccessToken,
			})
			defer lightstep.FlushLightStepTracer(tracer)
		case *appdashAddr == "" && *lightstepAccessToken == "" && *zipkinAddr != "":
			collector, err := zipkin.NewKafkaCollector(
				strings.Split(*zipkinAddr, ","),
				zipkin.KafkaLogger(logger),
			)
			if err != nil {
				logger.Log("err", "unable to create collector", "fatal", err)
				os.Exit(1)
			}
			tracer, err = zipkin.NewTracer(
				zipkin.NewRecorder(collector, false, "localhost:80", "addsvc"),
			)
			if err != nil {
				logger.Log("err", "unable to create zipkin tracer", "fatal", err)
				os.Exit(1)
			}
		case *appdashAddr == "" && *lightstepAccessToken == "" && *zipkinAddr == "":
			tracer = opentracing.GlobalTracer() // no-op
		default:
			logger.Log("fatal", "specify a single -appdash.addr, -lightstep.access.token or -zipkin.kafka.addr")
			os.Exit(1)
		}
	}

	// Business domain
	var svc server.AddService
	{
		svc = pureAddService{}
		svc = loggingMiddleware{svc, logger}
		svc = instrumentingMiddleware{svc, requestDuration}
	}

	// Mechanical stuff
	rand.Seed(time.Now().UnixNano())
	root := context.Background()
	errc := make(chan error)

	go func() {
		errc <- interrupt()
	}()

	// Debug/instrumentation
	go func() {
		transportLogger := log.NewContext(logger).With("transport", "debug")
		transportLogger.Log("addr", *debugAddr)
		errc <- http.ListenAndServe(*debugAddr, nil) // DefaultServeMux
	}()

	// Transport: HTTP/JSON
	go func() {
		var (
			transportLogger = log.NewContext(logger).With("transport", "HTTP/JSON")
			tracingLogger   = log.NewContext(transportLogger).With("component", "tracing")
			mux             = http.NewServeMux()
			sum, concat     endpoint.Endpoint
		)

		sum = makeSumEndpoint(svc)
		sum = kitot.TraceServer(tracer, "sum")(sum)
		mux.Handle("/sum", httptransport.NewServer(
			root,
			sum,
			server.DecodeSumRequest,
			server.EncodeSumResponse,
			httptransport.ServerErrorLogger(transportLogger),
			httptransport.ServerBefore(kitot.FromHTTPRequest(tracer, "sum", tracingLogger)),
		))

		concat = makeConcatEndpoint(svc)
		concat = kitot.TraceServer(tracer, "concat")(concat)
		mux.Handle("/concat", httptransport.NewServer(
			root,
			concat,
			server.DecodeConcatRequest,
			server.EncodeConcatResponse,
			httptransport.ServerErrorLogger(transportLogger),
			httptransport.ServerBefore(kitot.FromHTTPRequest(tracer, "concat", tracingLogger)),
		))

		transportLogger.Log("addr", *httpAddr)
		errc <- http.ListenAndServe(*httpAddr, mux)
	}()

	// Transport: gRPC
	go func() {
		transportLogger := log.NewContext(logger).With("transport", "gRPC")
		tracingLogger := log.NewContext(transportLogger).With("component", "tracing")
		ln, err := net.Listen("tcp", *grpcAddr)
		if err != nil {
			errc <- err
			return
		}
		s := grpc.NewServer() // uses its own, internal context
		pb.RegisterAddServer(s, newGRPCBinding(root, tracer, svc, tracingLogger))
		transportLogger.Log("addr", *grpcAddr)
		errc <- s.Serve(ln)
	}()

	// Transport: net/rpc
	go func() {
		transportLogger := log.NewContext(logger).With("transport", "net/rpc")
		s := rpc.NewServer()
		if err := s.RegisterName("addsvc", netrpcBinding{svc}); err != nil {
			errc <- err
			return
		}
		s.HandleHTTP(rpc.DefaultRPCPath, rpc.DefaultDebugPath)
		transportLogger.Log("addr", *netrpcAddr)
		errc <- http.ListenAndServe(*netrpcAddr, s)
	}()

	// Transport: Thrift
	go func() {
		var protocolFactory thrift.TProtocolFactory
		switch *thriftProtocol {
		case "binary":
			protocolFactory = thrift.NewTBinaryProtocolFactoryDefault()
		case "compact":
			protocolFactory = thrift.NewTCompactProtocolFactory()
		case "json":
			protocolFactory = thrift.NewTJSONProtocolFactory()
		case "simplejson":
			protocolFactory = thrift.NewTSimpleJSONProtocolFactory()
		default:
			errc <- fmt.Errorf("invalid Thrift protocol %q", *thriftProtocol)
			return
		}
		var transportFactory thrift.TTransportFactory
		if *thriftBufferSize > 0 {
			transportFactory = thrift.NewTBufferedTransportFactory(*thriftBufferSize)
		} else {
			transportFactory = thrift.NewTTransportFactory()
		}
		if *thriftFramed {
			transportFactory = thrift.NewTFramedTransportFactory(transportFactory)
		}
		transport, err := thrift.NewTServerSocket(*thriftAddr)
		if err != nil {
			errc <- err
			return
		}
		transportLogger := log.NewContext(logger).With("transport", "thrift")
		transportLogger.Log("addr", *thriftAddr)
		errc <- thrift.NewTSimpleServer4(
			thriftadd.NewAddServiceProcessor(thriftBinding{svc}),
			transport,
			transportFactory,
			protocolFactory,
		).Serve()
	}()

	logger.Log("fatal", <-errc)
}
Esempio n. 10
0
File: main.go Progetto: crezam/kit
func main() {
	var (
		debugAddr        = flag.String("debug.addr", ":8080", "Debug and metrics listen address")
		httpAddr         = flag.String("http.addr", ":8081", "HTTP listen address")
		grpcAddr         = flag.String("grpc.addr", ":8082", "gRPC (HTTP) listen address")
		thriftAddr       = flag.String("thrift.addr", ":8083", "Thrift listen address")
		thriftProtocol   = flag.String("thrift.protocol", "binary", "binary, compact, json, simplejson")
		thriftBufferSize = flag.Int("thrift.buffer.size", 0, "0 for unbuffered")
		thriftFramed     = flag.Bool("thrift.framed", false, "true to enable framing")
		zipkinAddr       = flag.String("zipkin.addr", "", "Enable Zipkin tracing via a Kafka server host:port")
		appdashAddr      = flag.String("appdash.addr", "", "Enable Appdash tracing via an Appdash server host:port")
		lightstepToken   = flag.String("lightstep.token", "", "Enable LightStep tracing via a LightStep access token")
	)
	flag.Parse()

	// Logging domain.
	var logger log.Logger
	{
		logger = log.NewLogfmtLogger(os.Stdout)
		logger = log.NewContext(logger).With("ts", log.DefaultTimestampUTC)
		logger = log.NewContext(logger).With("caller", log.DefaultCaller)
	}
	logger.Log("msg", "hello")
	defer logger.Log("msg", "goodbye")

	// Metrics domain.
	var ints, chars metrics.Counter
	{
		// Business level metrics.
		ints = prometheus.NewCounter(stdprometheus.CounterOpts{
			Namespace: "addsvc",
			Name:      "integers_summed",
			Help:      "Total count of integers summed via the Sum method.",
		}, []string{})
		chars = prometheus.NewCounter(stdprometheus.CounterOpts{
			Namespace: "addsvc",
			Name:      "characters_concatenated",
			Help:      "Total count of characters concatenated via the Concat method.",
		}, []string{})
	}
	var duration metrics.TimeHistogram
	{
		// Transport level metrics.
		duration = metrics.NewTimeHistogram(time.Nanosecond, prometheus.NewSummary(stdprometheus.SummaryOpts{
			Namespace: "addsvc",
			Name:      "request_duration_ns",
			Help:      "Request duration in nanoseconds.",
		}, []string{"method", "success"}))
	}

	// Tracing domain.
	var tracer stdopentracing.Tracer
	{
		if *zipkinAddr != "" {
			logger := log.NewContext(logger).With("tracer", "Zipkin")
			logger.Log("addr", *zipkinAddr)
			collector, err := zipkin.NewKafkaCollector(
				strings.Split(*zipkinAddr, ","),
				zipkin.KafkaLogger(logger),
			)
			if err != nil {
				logger.Log("err", err)
				os.Exit(1)
			}
			tracer, err = zipkin.NewTracer(
				zipkin.NewRecorder(collector, false, "localhost:80", "addsvc"),
			)
			if err != nil {
				logger.Log("err", err)
				os.Exit(1)
			}
		} else if *appdashAddr != "" {
			logger := log.NewContext(logger).With("tracer", "Appdash")
			logger.Log("addr", *appdashAddr)
			tracer = appdashot.NewTracer(appdash.NewRemoteCollector(*appdashAddr))
		} else if *lightstepToken != "" {
			logger := log.NewContext(logger).With("tracer", "LightStep")
			logger.Log() // probably don't want to print out the token :)
			tracer = lightstep.NewTracer(lightstep.Options{
				AccessToken: *lightstepToken,
			})
			defer lightstep.FlushLightStepTracer(tracer)
		} else {
			logger := log.NewContext(logger).With("tracer", "none")
			logger.Log()
			tracer = stdopentracing.GlobalTracer() // no-op
		}
	}

	// Business domain.
	var service addsvc.Service
	{
		service = addsvc.NewBasicService()
		service = addsvc.ServiceLoggingMiddleware(logger)(service)
		service = addsvc.ServiceInstrumentingMiddleware(ints, chars)(service)
	}

	// Endpoint domain.
	var sumEndpoint endpoint.Endpoint
	{
		sumDuration := duration.With(metrics.Field{Key: "method", Value: "Sum"})
		sumLogger := log.NewContext(logger).With("method", "Sum")

		sumEndpoint = addsvc.MakeSumEndpoint(service)
		sumEndpoint = opentracing.TraceServer(tracer, "Sum")(sumEndpoint)
		sumEndpoint = addsvc.EndpointInstrumentingMiddleware(sumDuration)(sumEndpoint)
		sumEndpoint = addsvc.EndpointLoggingMiddleware(sumLogger)(sumEndpoint)
	}
	var concatEndpoint endpoint.Endpoint
	{
		concatDuration := duration.With(metrics.Field{Key: "method", Value: "Concat"})
		concatLogger := log.NewContext(logger).With("method", "Concat")

		concatEndpoint = addsvc.MakeConcatEndpoint(service)
		concatEndpoint = opentracing.TraceServer(tracer, "Concat")(concatEndpoint)
		concatEndpoint = addsvc.EndpointInstrumentingMiddleware(concatDuration)(concatEndpoint)
		concatEndpoint = addsvc.EndpointLoggingMiddleware(concatLogger)(concatEndpoint)
	}
	endpoints := addsvc.Endpoints{
		SumEndpoint:    sumEndpoint,
		ConcatEndpoint: concatEndpoint,
	}

	// Mechanical domain.
	errc := make(chan error)
	ctx := context.Background()

	// Interrupt handler.
	go func() {
		c := make(chan os.Signal, 1)
		signal.Notify(c, syscall.SIGINT, syscall.SIGTERM)
		errc <- fmt.Errorf("%s", <-c)
	}()

	// Debug listener.
	go func() {
		logger := log.NewContext(logger).With("transport", "debug")

		m := http.NewServeMux()
		m.Handle("/debug/pprof/", http.HandlerFunc(pprof.Index))
		m.Handle("/debug/pprof/cmdline", http.HandlerFunc(pprof.Cmdline))
		m.Handle("/debug/pprof/profile", http.HandlerFunc(pprof.Profile))
		m.Handle("/debug/pprof/symbol", http.HandlerFunc(pprof.Symbol))
		m.Handle("/debug/pprof/trace", http.HandlerFunc(pprof.Trace))
		m.Handle("/metrics", stdprometheus.Handler())

		logger.Log("addr", *debugAddr)
		errc <- http.ListenAndServe(*debugAddr, m)
	}()

	// HTTP transport.
	go func() {
		logger := log.NewContext(logger).With("transport", "HTTP")
		h := addsvc.MakeHTTPHandler(ctx, endpoints, tracer, logger)
		logger.Log("addr", *httpAddr)
		errc <- http.ListenAndServe(*httpAddr, h)
	}()

	// gRPC transport.
	go func() {
		logger := log.NewContext(logger).With("transport", "gRPC")

		ln, err := net.Listen("tcp", *grpcAddr)
		if err != nil {
			errc <- err
			return
		}

		srv := addsvc.MakeGRPCServer(ctx, endpoints, tracer, logger)
		s := grpc.NewServer()
		pb.RegisterAddServer(s, srv)

		logger.Log("addr", *grpcAddr)
		errc <- s.Serve(ln)
	}()

	// Thrift transport.
	go func() {
		logger := log.NewContext(logger).With("transport", "Thrift")

		var protocolFactory thrift.TProtocolFactory
		switch *thriftProtocol {
		case "binary":
			protocolFactory = thrift.NewTBinaryProtocolFactoryDefault()
		case "compact":
			protocolFactory = thrift.NewTCompactProtocolFactory()
		case "json":
			protocolFactory = thrift.NewTJSONProtocolFactory()
		case "simplejson":
			protocolFactory = thrift.NewTSimpleJSONProtocolFactory()
		default:
			errc <- fmt.Errorf("invalid Thrift protocol %q", *thriftProtocol)
			return
		}

		var transportFactory thrift.TTransportFactory
		if *thriftBufferSize > 0 {
			transportFactory = thrift.NewTBufferedTransportFactory(*thriftBufferSize)
		} else {
			transportFactory = thrift.NewTTransportFactory()
		}
		if *thriftFramed {
			transportFactory = thrift.NewTFramedTransportFactory(transportFactory)
		}

		transport, err := thrift.NewTServerSocket(*thriftAddr)
		if err != nil {
			errc <- err
			return
		}

		logger.Log("addr", *thriftAddr)
		errc <- thrift.NewTSimpleServer4(
			thriftadd.NewAddServiceProcessor(addsvc.MakeThriftHandler(ctx, endpoints)),
			transport,
			transportFactory,
			protocolFactory,
		).Serve()
	}()

	// Run!
	logger.Log("exit", <-errc)
}