示例#1
0
文件: client.go 项目: qband/down
// New returns a stateful factory for Sum and Concat Endpoints
func New(protocol string, bufferSize int, framed bool, logger log.Logger) client {
	var protocolFactory thrift.TProtocolFactory
	switch protocol {
	case "compact":
		protocolFactory = thrift.NewTCompactProtocolFactory()
	case "simplejson":
		protocolFactory = thrift.NewTSimpleJSONProtocolFactory()
	case "json":
		protocolFactory = thrift.NewTJSONProtocolFactory()
	case "binary", "":
		protocolFactory = thrift.NewTBinaryProtocolFactoryDefault()
	default:
		panic("invalid protocol")
	}

	var transportFactory thrift.TTransportFactory
	if bufferSize > 0 {
		transportFactory = thrift.NewTBufferedTransportFactory(bufferSize)
	} else {
		transportFactory = thrift.NewTTransportFactory()
	}
	if framed {
		transportFactory = thrift.NewTFramedTransportFactory(transportFactory)
	}

	return client{transportFactory, protocolFactory, logger}
}
示例#2
0
文件: guess.go 项目: godeep/goth
func GuessProtoFactory(what string) (res thrift.TProtocolFactory) {
	switch what {
	case "compact":
		res = thrift.NewTCompactProtocolFactory()
	case "simplejson":
		res = thrift.NewTSimpleJSONProtocolFactory()
	case "json":
		res = thrift.NewTJSONProtocolFactory()
	case "binary", "":
		res = thrift.NewTBinaryProtocolFactoryDefault()
	default:
		res = thrift.NewTBinaryProtocolFactoryDefault()
	}
	return
}
示例#3
0
文件: main.go 项目: simonjefford/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")
		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)
}
示例#4
0
文件: main.go 项目: nimmen/kit
func main() {
	var (
		transport        = flag.String("transport", "httpjson", "httpjson, grpc, netrpc, thrift")
		httpAddr         = flag.String("http.addr", "localhost:8001", "Address for HTTP (JSON) server")
		grpcAddr         = flag.String("grpc.addr", "localhost:8002", "Address for gRPC server")
		netrpcAddr       = flag.String("netrpc.addr", "localhost:8003", "Address for net/rpc server")
		thriftAddr       = flag.String("thrift.addr", "localhost:8004", "Address for Thrift server")
		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")
	)
	flag.Parse()
	if len(os.Args) < 4 {
		fmt.Fprintf(os.Stderr, "\n%s [flags] method arg1 arg2\n\n", filepath.Base(os.Args[0]))
		flag.Usage()
		os.Exit(1)
	}

	root := context.Background()
	method, s1, s2 := flag.Arg(0), flag.Arg(1), flag.Arg(2)

	var logger log.Logger
	logger = log.NewLogfmtLogger(os.Stdout)
	logger = log.NewContext(logger).With("caller", log.DefaultCaller)
	logger = log.NewContext(logger).With("transport", *transport)

	var svc server.AddService
	switch *transport {
	case "grpc":
		cc, err := grpc.Dial(*grpcAddr)
		if err != nil {
			_ = logger.Log("err", err)
			os.Exit(1)
		}
		defer cc.Close()
		svc = grpcclient.New(root, cc, logger)

	case "httpjson":
		rawurl := *httpAddr
		if !strings.HasPrefix("http", rawurl) {
			rawurl = "http://" + rawurl
		}
		baseurl, err := url.Parse(rawurl)
		if err != nil {
			_ = logger.Log("err", err)
			os.Exit(1)
		}
		svc = httpjsonclient.New(root, baseurl, logger, nil)

	case "netrpc":
		cli, err := rpc.DialHTTP("tcp", *netrpcAddr)
		if err != nil {
			_ = logger.Log("err", err)
			os.Exit(1)
		}
		defer cli.Close()
		svc = netrpcclient.New(cli, logger)

	case "thrift":
		var protocolFactory thrift.TProtocolFactory
		switch *thriftProtocol {
		case "compact":
			protocolFactory = thrift.NewTCompactProtocolFactory()
		case "simplejson":
			protocolFactory = thrift.NewTSimpleJSONProtocolFactory()
		case "json":
			protocolFactory = thrift.NewTJSONProtocolFactory()
		case "binary", "":
			protocolFactory = thrift.NewTBinaryProtocolFactoryDefault()
		default:
			_ = logger.Log("protocol", *thriftProtocol, "err", "invalid protocol")
			os.Exit(1)
		}
		var transportFactory thrift.TTransportFactory
		if *thriftBufferSize > 0 {
			transportFactory = thrift.NewTBufferedTransportFactory(*thriftBufferSize)
		} else {
			transportFactory = thrift.NewTTransportFactory()
		}
		if *thriftFramed {
			transportFactory = thrift.NewTFramedTransportFactory(transportFactory)
		}
		transportSocket, err := thrift.NewTSocket(*thriftAddr)
		if err != nil {
			_ = logger.Log("during", "thrift.NewTSocket", "err", err)
			os.Exit(1)
		}
		trans := transportFactory.GetTransport(transportSocket)
		defer trans.Close()
		if err := trans.Open(); err != nil {
			_ = logger.Log("during", "thrift transport.Open", "err", err)
			os.Exit(1)
		}
		cli := thriftadd.NewAddServiceClientFactory(trans, protocolFactory)
		svc = thriftclient.New(cli, logger)

	default:
		_ = logger.Log("err", "invalid transport")
		os.Exit(1)
	}

	begin := time.Now()
	switch method {
	case "sum":
		a, _ := strconv.Atoi(s1)
		b, _ := strconv.Atoi(s2)
		v := svc.Sum(a, b)
		_ = logger.Log("method", "sum", "a", a, "b", b, "v", v, "took", time.Since(begin))

	case "concat":
		a, b := s1, s2
		v := svc.Concat(a, b)
		_ = logger.Log("method", "concat", "a", a, "b", b, "v", v, "took", time.Since(begin))

	default:
		_ = logger.Log("err", "invalid method "+method)
		os.Exit(1)
	}
}
示例#5
0
文件: main.go 项目: 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)
}
示例#6
0
func main() {
	flag.Usage = Usage
	var host string
	var port int
	var protocol string
	var urlString string
	var framed bool
	var useHttp bool
	var parsedUrl url.URL
	var trans thrift.TTransport
	_ = strconv.Atoi
	_ = math.Abs
	flag.Usage = Usage
	flag.StringVar(&host, "h", "localhost", "Specify host and port")
	flag.IntVar(&port, "p", 9090, "Specify port")
	flag.StringVar(&protocol, "P", "binary", "Specify the protocol (binary, compact, simplejson, json)")
	flag.StringVar(&urlString, "u", "", "Specify the url")
	flag.BoolVar(&framed, "framed", false, "Use framed transport")
	flag.BoolVar(&useHttp, "http", false, "Use http")
	flag.Parse()

	if len(urlString) > 0 {
		parsedUrl, err := url.Parse(urlString)
		if err != nil {
			fmt.Fprintln(os.Stderr, "Error parsing URL: ", err)
			flag.Usage()
		}
		host = parsedUrl.Host
		useHttp = len(parsedUrl.Scheme) <= 0 || parsedUrl.Scheme == "http"
	} else if useHttp {
		_, err := url.Parse(fmt.Sprint("http://", host, ":", port))
		if err != nil {
			fmt.Fprintln(os.Stderr, "Error parsing URL: ", err)
			flag.Usage()
		}
	}

	cmd := flag.Arg(0)
	var err error
	if useHttp {
		trans, err = thrift.NewTHttpClient(parsedUrl.String())
	} else {
		portStr := fmt.Sprint(port)
		if strings.Contains(host, ":") {
			host, portStr, err = net.SplitHostPort(host)
			if err != nil {
				fmt.Fprintln(os.Stderr, "error with host:", err)
				os.Exit(1)
			}
		}
		trans, err = thrift.NewTSocket(net.JoinHostPort(host, portStr))
		if err != nil {
			fmt.Fprintln(os.Stderr, "error resolving address:", err)
			os.Exit(1)
		}
		if framed {
			trans = thrift.NewTFramedTransport(trans)
		}
	}
	if err != nil {
		fmt.Fprintln(os.Stderr, "Error creating transport", err)
		os.Exit(1)
	}
	defer trans.Close()
	var protocolFactory thrift.TProtocolFactory
	switch protocol {
	case "compact":
		protocolFactory = thrift.NewTCompactProtocolFactory()
		break
	case "simplejson":
		protocolFactory = thrift.NewTSimpleJSONProtocolFactory()
		break
	case "json":
		protocolFactory = thrift.NewTJSONProtocolFactory()
		break
	case "binary", "":
		protocolFactory = thrift.NewTBinaryProtocolFactoryDefault()
		break
	default:
		fmt.Fprintln(os.Stderr, "Invalid protocol specified: ", protocol)
		Usage()
		os.Exit(1)
	}
	client := add.NewAddServiceClientFactory(trans, protocolFactory)
	if err := trans.Open(); err != nil {
		fmt.Fprintln(os.Stderr, "Error opening socket to ", host, ":", port, " ", err)
		os.Exit(1)
	}

	switch cmd {
	case "Add":
		if flag.NArg()-1 != 2 {
			fmt.Fprintln(os.Stderr, "Add requires 2 args")
			flag.Usage()
		}
		argvalue0, err4 := (strconv.ParseInt(flag.Arg(1), 10, 64))
		if err4 != nil {
			Usage()
			return
		}
		value0 := argvalue0
		argvalue1, err5 := (strconv.ParseInt(flag.Arg(2), 10, 64))
		if err5 != nil {
			Usage()
			return
		}
		value1 := argvalue1
		fmt.Print(client.Add(value0, value1))
		fmt.Print("\n")
		break
	case "":
		Usage()
		break
	default:
		fmt.Fprintln(os.Stderr, "Invalid function ", cmd)
	}
}
示例#7
0
文件: main.go 项目: 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 (
		transport        = fs.String("transport", "grpc", "http, grpc, netrpc, thrift")
		httpAddr         = fs.String("http.addr", "localhost:8001", "HTTP (JSON) address")
		grpcAddr         = fs.String("grpc.addr", "localhost:8002", "gRPC address")
		netrpcAddr       = fs.String("netrpc.addr", "localhost:8003", "net/rpc address")
		thriftAddr       = fs.String("thrift.addr", "localhost:8004", "Thrift address")
		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")
		a                = fs.Int64("a", 1, "a value")
		b                = fs.Int64("b", 2, "b value")
	)
	flag.Usage = fs.Usage // only show our flags
	fs.Parse(os.Args[1:])
	log.SetFlags(0)
	log.SetOutput(os.Stdout)

	var e endpoint.Endpoint
	switch *transport {
	case "http":
		if !strings.HasPrefix(*httpAddr, "http") {
			*httpAddr = "http://" + *httpAddr
		}
		u, err := url.Parse(*httpAddr)
		if err != nil {
			log.Fatalf("url.Parse: %v", err)
		}
		if u.Path == "" {
			u.Path = "/add"
		}
		e = httpclient.NewClient("GET", u.String())

	case "grpc":
		cc, err := grpc.Dial(*grpcAddr)
		if err != nil {
			log.Fatalf("grpc.Dial: %v", err)
		}
		e = grpcclient.NewClient(cc)

	case "netrpc":
		client, err := rpc.DialHTTP("tcp", *netrpcAddr)
		if err != nil {
			log.Fatalf("rpc.DialHTTP: %v", err)
		}
		e = netrpcclient.NewClient(client)

	case "thrift":
		var protocolFactory thrift.TProtocolFactory
		switch *thriftProtocol {
		case "compact":
			protocolFactory = thrift.NewTCompactProtocolFactory()
		case "simplejson":
			protocolFactory = thrift.NewTSimpleJSONProtocolFactory()
		case "json":
			protocolFactory = thrift.NewTJSONProtocolFactory()
		case "binary", "":
			protocolFactory = thrift.NewTBinaryProtocolFactoryDefault()
		default:
			log.Fatalf("invalid protocol %q", *thriftProtocol)
		}

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

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

		transportSocket, err := thrift.NewTSocket(*thriftAddr)
		if err != nil {
			log.Fatalf("thrift.NewTSocket: %v", err)
		}

		transport := transportFactory.GetTransport(transportSocket)
		defer transport.Close()
		if err := transport.Open(); err != nil {
			log.Fatalf("Thrift transport.Open: %v", err)
		}

		e = thriftclient.NewClient(thriftadd.NewAddServiceClientFactory(transport, protocolFactory))

	default:
		log.Fatalf("unsupported transport %q", *transport)
	}

	response, err := e(context.Background(), reqrep.AddRequest{A: *a, B: *b})
	if err != nil {
		log.Fatalf("when invoking request: %v", err)
	}
	addResponse, ok := response.(reqrep.AddResponse)
	if !ok {
		log.Fatalf("when type-asserting response: %v", endpoint.ErrBadCast)
	}
	log.Print(addResponse.V)
}
示例#8
0
文件: main.go 项目: 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)
}
示例#9
0
func main() {
	flag.Usage = Usage
	var host string
	var port int
	var protocol string
	var urlString string
	var framed bool
	var useHttp bool
	var parsedUrl url.URL
	var trans thrift.TTransport
	_ = strconv.Atoi
	_ = math.Abs
	flag.Usage = Usage
	flag.StringVar(&host, "h", "localhost", "Specify host and port")
	flag.IntVar(&port, "p", 9090, "Specify port")
	flag.StringVar(&protocol, "P", "binary", "Specify the protocol (binary, compact, simplejson, json)")
	flag.StringVar(&urlString, "u", "", "Specify the url")
	flag.BoolVar(&framed, "framed", false, "Use framed transport")
	flag.BoolVar(&useHttp, "http", false, "Use http")
	flag.Parse()

	if len(urlString) > 0 {
		parsedUrl, err := url.Parse(urlString)
		if err != nil {
			fmt.Fprintln(os.Stderr, "Error parsing URL: ", err)
			flag.Usage()
		}
		host = parsedUrl.Host
		useHttp = len(parsedUrl.Scheme) <= 0 || parsedUrl.Scheme == "http"
	} else if useHttp {
		_, err := url.Parse(fmt.Sprint("http://", host, ":", port))
		if err != nil {
			fmt.Fprintln(os.Stderr, "Error parsing URL: ", err)
			flag.Usage()
		}
	}

	cmd := flag.Arg(0)
	var err error
	if useHttp {
		trans, err = thrift.NewTHttpClient(parsedUrl.String())
	} else {
		portStr := fmt.Sprint(port)
		if strings.Contains(host, ":") {
			host, portStr, err = net.SplitHostPort(host)
			if err != nil {
				fmt.Fprintln(os.Stderr, "error with host:", err)
				os.Exit(1)
			}
		}
		trans, err = thrift.NewTSocket(net.JoinHostPort(host, portStr))
		if err != nil {
			fmt.Fprintln(os.Stderr, "error resolving address:", err)
			os.Exit(1)
		}
		if framed {
			trans = thrift.NewTFramedTransport(trans)
		}
	}
	if err != nil {
		fmt.Fprintln(os.Stderr, "Error creating transport", err)
		os.Exit(1)
	}
	defer trans.Close()
	var protocolFactory thrift.TProtocolFactory
	switch protocol {
	case "compact":
		protocolFactory = thrift.NewTCompactProtocolFactory()
		break
	case "simplejson":
		protocolFactory = thrift.NewTSimpleJSONProtocolFactory()
		break
	case "json":
		protocolFactory = thrift.NewTJSONProtocolFactory()
		break
	case "binary", "":
		protocolFactory = thrift.NewTBinaryProtocolFactoryDefault()
		break
	default:
		fmt.Fprintln(os.Stderr, "Invalid protocol specified: ", protocol)
		Usage()
		os.Exit(1)
	}
	client := scribe.NewScribeClientFactory(trans, protocolFactory)
	if err := trans.Open(); err != nil {
		fmt.Fprintln(os.Stderr, "Error opening socket to ", host, ":", port, " ", err)
		os.Exit(1)
	}

	switch cmd {
	case "Log":
		if flag.NArg()-1 != 1 {
			fmt.Fprintln(os.Stderr, "Log requires 1 args")
			flag.Usage()
		}
		arg5 := flag.Arg(1)
		mbTrans6 := thrift.NewTMemoryBufferLen(len(arg5))
		defer mbTrans6.Close()
		_, err7 := mbTrans6.WriteString(arg5)
		if err7 != nil {
			Usage()
			return
		}
		factory8 := thrift.NewTSimpleJSONProtocolFactory()
		jsProt9 := factory8.GetProtocol(mbTrans6)
		containerStruct0 := scribe.NewLogArgs()
		err10 := containerStruct0.ReadField1(jsProt9)
		if err10 != nil {
			Usage()
			return
		}
		argvalue0 := containerStruct0.Messages
		value0 := argvalue0
		fmt.Print(client.Log(value0))
		fmt.Print("\n")
		break
	case "":
		Usage()
		break
	default:
		fmt.Fprintln(os.Stderr, "Invalid function ", cmd)
	}
}
示例#10
0
func main() {
	flag.Usage = Usage
	var host string
	var port int
	var protocol string
	var urlString string
	var framed bool
	var useHttp bool
	var parsedUrl url.URL
	var trans thrift.TTransport
	_ = strconv.Atoi
	_ = math.Abs
	flag.Usage = Usage
	flag.StringVar(&host, "h", "localhost", "Specify host and port")
	flag.IntVar(&port, "p", 9090, "Specify port")
	flag.StringVar(&protocol, "P", "binary", "Specify the protocol (binary, compact, simplejson, json)")
	flag.StringVar(&urlString, "u", "", "Specify the url")
	flag.BoolVar(&framed, "framed", false, "Use framed transport")
	flag.BoolVar(&useHttp, "http", false, "Use http")
	flag.Parse()

	if len(urlString) > 0 {
		parsedUrl, err := url.Parse(urlString)
		if err != nil {
			fmt.Fprintln(os.Stderr, "Error parsing URL: ", err)
			flag.Usage()
		}
		host = parsedUrl.Host
		useHttp = len(parsedUrl.Scheme) <= 0 || parsedUrl.Scheme == "http"
	} else if useHttp {
		_, err := url.Parse(fmt.Sprint("http://", host, ":", port))
		if err != nil {
			fmt.Fprintln(os.Stderr, "Error parsing URL: ", err)
			flag.Usage()
		}
	}

	cmd := flag.Arg(0)
	var err error
	if useHttp {
		trans, err = thrift.NewTHttpClient(parsedUrl.String())
	} else {
		portStr := fmt.Sprint(port)
		if strings.Contains(host, ":") {
			host, portStr, err = net.SplitHostPort(host)
			if err != nil {
				fmt.Fprintln(os.Stderr, "error with host:", err)
				os.Exit(1)
			}
		}
		trans, err = thrift.NewTSocket(net.JoinHostPort(host, portStr))
		if err != nil {
			fmt.Fprintln(os.Stderr, "error resolving address:", err)
			os.Exit(1)
		}
		if framed {
			trans = thrift.NewTFramedTransport(trans)
		}
	}
	if err != nil {
		fmt.Fprintln(os.Stderr, "Error creating transport", err)
		os.Exit(1)
	}
	defer trans.Close()
	var protocolFactory thrift.TProtocolFactory
	switch protocol {
	case "compact":
		protocolFactory = thrift.NewTCompactProtocolFactory()
		break
	case "simplejson":
		protocolFactory = thrift.NewTSimpleJSONProtocolFactory()
		break
	case "json":
		protocolFactory = thrift.NewTJSONProtocolFactory()
		break
	case "binary", "":
		protocolFactory = thrift.NewTBinaryProtocolFactoryDefault()
		break
	default:
		fmt.Fprintln(os.Stderr, "Invalid protocol specified: ", protocol)
		Usage()
		os.Exit(1)
	}
	client := zipkincollector.NewZipkinCollectorClientFactory(trans, protocolFactory)
	if err := trans.Open(); err != nil {
		fmt.Fprintln(os.Stderr, "Error opening socket to ", host, ":", port, " ", err)
		os.Exit(1)
	}

	switch cmd {
	case "storeTopAnnotations":
		if flag.NArg()-1 != 2 {
			fmt.Fprintln(os.Stderr, "StoreTopAnnotations requires 2 args")
			flag.Usage()
		}
		argvalue0 := flag.Arg(1)
		value0 := argvalue0
		arg10 := flag.Arg(2)
		mbTrans11 := thrift.NewTMemoryBufferLen(len(arg10))
		defer mbTrans11.Close()
		_, err12 := mbTrans11.WriteString(arg10)
		if err12 != nil {
			Usage()
			return
		}
		factory13 := thrift.NewTSimpleJSONProtocolFactory()
		jsProt14 := factory13.GetProtocol(mbTrans11)
		containerStruct1 := zipkincollector.NewStoreTopAnnotationsArgs()
		err15 := containerStruct1.ReadField2(jsProt14)
		if err15 != nil {
			Usage()
			return
		}
		argvalue1 := containerStruct1.Annotations
		value1 := argvalue1
		fmt.Print(client.StoreTopAnnotations(value0, value1))
		fmt.Print("\n")
		break
	case "storeTopKeyValueAnnotations":
		if flag.NArg()-1 != 2 {
			fmt.Fprintln(os.Stderr, "StoreTopKeyValueAnnotations requires 2 args")
			flag.Usage()
		}
		argvalue0 := flag.Arg(1)
		value0 := argvalue0
		arg17 := flag.Arg(2)
		mbTrans18 := thrift.NewTMemoryBufferLen(len(arg17))
		defer mbTrans18.Close()
		_, err19 := mbTrans18.WriteString(arg17)
		if err19 != nil {
			Usage()
			return
		}
		factory20 := thrift.NewTSimpleJSONProtocolFactory()
		jsProt21 := factory20.GetProtocol(mbTrans18)
		containerStruct1 := zipkincollector.NewStoreTopKeyValueAnnotationsArgs()
		err22 := containerStruct1.ReadField2(jsProt21)
		if err22 != nil {
			Usage()
			return
		}
		argvalue1 := containerStruct1.Annotations
		value1 := argvalue1
		fmt.Print(client.StoreTopKeyValueAnnotations(value0, value1))
		fmt.Print("\n")
		break
	case "storeDependencies":
		if flag.NArg()-1 != 1 {
			fmt.Fprintln(os.Stderr, "StoreDependencies requires 1 args")
			flag.Usage()
		}
		arg23 := flag.Arg(1)
		mbTrans24 := thrift.NewTMemoryBufferLen(len(arg23))
		defer mbTrans24.Close()
		_, err25 := mbTrans24.WriteString(arg23)
		if err25 != nil {
			Usage()
			return
		}
		factory26 := thrift.NewTSimpleJSONProtocolFactory()
		jsProt27 := factory26.GetProtocol(mbTrans24)
		argvalue0 := zipkincollector.NewDependencies()
		err28 := argvalue0.Read(jsProt27)
		if err28 != nil {
			Usage()
			return
		}
		value0 := argvalue0
		fmt.Print(client.StoreDependencies(value0))
		fmt.Print("\n")
		break
	case "Log":
		if flag.NArg()-1 != 1 {
			fmt.Fprintln(os.Stderr, "Log requires 1 args")
			flag.Usage()
		}
		arg29 := flag.Arg(1)
		mbTrans30 := thrift.NewTMemoryBufferLen(len(arg29))
		defer mbTrans30.Close()
		_, err31 := mbTrans30.WriteString(arg29)
		if err31 != nil {
			Usage()
			return
		}
		factory32 := thrift.NewTSimpleJSONProtocolFactory()
		jsProt33 := factory32.GetProtocol(mbTrans30)
		containerStruct0 := zipkincollector.NewLogArgs()
		err34 := containerStruct0.ReadField1(jsProt33)
		if err34 != nil {
			Usage()
			return
		}
		argvalue0 := containerStruct0.Messages
		value0 := argvalue0
		fmt.Print(client.Log(value0))
		fmt.Print("\n")
		break
	case "":
		Usage()
		break
	default:
		fmt.Fprintln(os.Stderr, "Invalid function ", cmd)
	}
}
示例#11
0
func main() {
	flag.Usage = Usage
	var host string
	var port int
	var protocol string
	var urlString string
	var framed bool
	var useHttp bool
	var parsedUrl url.URL
	var trans thrift.TTransport
	_ = strconv.Atoi
	_ = math.Abs
	flag.Usage = Usage
	flag.StringVar(&host, "h", "localhost", "Specify host and port")
	flag.IntVar(&port, "p", 9090, "Specify port")
	flag.StringVar(&protocol, "P", "binary", "Specify the protocol (binary, compact, simplejson, json)")
	flag.StringVar(&urlString, "u", "", "Specify the url")
	flag.BoolVar(&framed, "framed", false, "Use framed transport")
	flag.BoolVar(&useHttp, "http", false, "Use http")
	flag.Parse()

	if len(urlString) > 0 {
		parsedUrl, err := url.Parse(urlString)
		if err != nil {
			fmt.Fprintln(os.Stderr, "Error parsing URL: ", err)
			flag.Usage()
		}
		host = parsedUrl.Host
		useHttp = len(parsedUrl.Scheme) <= 0 || parsedUrl.Scheme == "http"
	} else if useHttp {
		_, err := url.Parse(fmt.Sprint("http://", host, ":", port))
		if err != nil {
			fmt.Fprintln(os.Stderr, "Error parsing URL: ", err)
			flag.Usage()
		}
	}

	cmd := flag.Arg(0)
	var err error
	if useHttp {
		trans, err = thrift.NewTHttpClient(parsedUrl.String())
	} else {
		portStr := fmt.Sprint(port)
		if strings.Contains(host, ":") {
			host, portStr, err = net.SplitHostPort(host)
			if err != nil {
				fmt.Fprintln(os.Stderr, "error with host:", err)
				os.Exit(1)
			}
		}
		trans, err = thrift.NewTSocket(net.JoinHostPort(host, portStr))
		if err != nil {
			fmt.Fprintln(os.Stderr, "error resolving address:", err)
			os.Exit(1)
		}
		if framed {
			trans = thrift.NewTFramedTransport(trans)
		}
	}
	if err != nil {
		fmt.Fprintln(os.Stderr, "Error creating transport", err)
		os.Exit(1)
	}
	defer trans.Close()
	var protocolFactory thrift.TProtocolFactory
	switch protocol {
	case "compact":
		protocolFactory = thrift.NewTCompactProtocolFactory()
		break
	case "simplejson":
		protocolFactory = thrift.NewTSimpleJSONProtocolFactory()
		break
	case "json":
		protocolFactory = thrift.NewTJSONProtocolFactory()
		break
	case "binary", "":
		protocolFactory = thrift.NewTBinaryProtocolFactoryDefault()
		break
	default:
		fmt.Fprintln(os.Stderr, "Invalid protocol specified: ", protocol)
		Usage()
		os.Exit(1)
	}
	client := zipkinquery.NewZipkinQueryClientFactory(trans, protocolFactory)
	if err := trans.Open(); err != nil {
		fmt.Fprintln(os.Stderr, "Error opening socket to ", host, ":", port, " ", err)
		os.Exit(1)
	}

	switch cmd {
	case "getTraceIds":
		if flag.NArg()-1 != 1 {
			fmt.Fprintln(os.Stderr, "GetTraceIds requires 1 args")
			flag.Usage()
		}
		arg77 := flag.Arg(1)
		mbTrans78 := thrift.NewTMemoryBufferLen(len(arg77))
		defer mbTrans78.Close()
		_, err79 := mbTrans78.WriteString(arg77)
		if err79 != nil {
			Usage()
			return
		}
		factory80 := thrift.NewTSimpleJSONProtocolFactory()
		jsProt81 := factory80.GetProtocol(mbTrans78)
		argvalue0 := zipkinquery.NewQueryRequest()
		err82 := argvalue0.Read(jsProt81)
		if err82 != nil {
			Usage()
			return
		}
		value0 := argvalue0
		fmt.Print(client.GetTraceIds(value0))
		fmt.Print("\n")
		break
	case "getTraceIdsBySpanName":
		if flag.NArg()-1 != 5 {
			fmt.Fprintln(os.Stderr, "GetTraceIdsBySpanName requires 5 args")
			flag.Usage()
		}
		argvalue0 := flag.Arg(1)
		value0 := argvalue0
		argvalue1 := flag.Arg(2)
		value1 := argvalue1
		argvalue2, err85 := (strconv.ParseInt(flag.Arg(3), 10, 64))
		if err85 != nil {
			Usage()
			return
		}
		value2 := argvalue2
		tmp3, err86 := (strconv.Atoi(flag.Arg(4)))
		if err86 != nil {
			Usage()
			return
		}
		argvalue3 := int32(tmp3)
		value3 := argvalue3
		tmp4, err := (strconv.Atoi(flag.Arg(5)))
		if err != nil {
			Usage()
			return
		}
		argvalue4 := zipkinquery.Order(tmp4)
		value4 := argvalue4
		fmt.Print(client.GetTraceIdsBySpanName(value0, value1, value2, value3, value4))
		fmt.Print("\n")
		break
	case "getTraceIdsByServiceName":
		if flag.NArg()-1 != 4 {
			fmt.Fprintln(os.Stderr, "GetTraceIdsByServiceName requires 4 args")
			flag.Usage()
		}
		argvalue0 := flag.Arg(1)
		value0 := argvalue0
		argvalue1, err88 := (strconv.ParseInt(flag.Arg(2), 10, 64))
		if err88 != nil {
			Usage()
			return
		}
		value1 := argvalue1
		tmp2, err89 := (strconv.Atoi(flag.Arg(3)))
		if err89 != nil {
			Usage()
			return
		}
		argvalue2 := int32(tmp2)
		value2 := argvalue2
		tmp3, err := (strconv.Atoi(flag.Arg(4)))
		if err != nil {
			Usage()
			return
		}
		argvalue3 := zipkinquery.Order(tmp3)
		value3 := argvalue3
		fmt.Print(client.GetTraceIdsByServiceName(value0, value1, value2, value3))
		fmt.Print("\n")
		break
	case "getTraceIdsByAnnotation":
		if flag.NArg()-1 != 6 {
			fmt.Fprintln(os.Stderr, "GetTraceIdsByAnnotation requires 6 args")
			flag.Usage()
		}
		argvalue0 := flag.Arg(1)
		value0 := argvalue0
		argvalue1 := flag.Arg(2)
		value1 := argvalue1
		argvalue2 := []byte(flag.Arg(3))
		value2 := argvalue2
		argvalue3, err93 := (strconv.ParseInt(flag.Arg(4), 10, 64))
		if err93 != nil {
			Usage()
			return
		}
		value3 := argvalue3
		tmp4, err94 := (strconv.Atoi(flag.Arg(5)))
		if err94 != nil {
			Usage()
			return
		}
		argvalue4 := int32(tmp4)
		value4 := argvalue4
		tmp5, err := (strconv.Atoi(flag.Arg(6)))
		if err != nil {
			Usage()
			return
		}
		argvalue5 := zipkinquery.Order(tmp5)
		value5 := argvalue5
		fmt.Print(client.GetTraceIdsByAnnotation(value0, value1, value2, value3, value4, value5))
		fmt.Print("\n")
		break
	case "tracesExist":
		if flag.NArg()-1 != 1 {
			fmt.Fprintln(os.Stderr, "TracesExist requires 1 args")
			flag.Usage()
		}
		arg95 := flag.Arg(1)
		mbTrans96 := thrift.NewTMemoryBufferLen(len(arg95))
		defer mbTrans96.Close()
		_, err97 := mbTrans96.WriteString(arg95)
		if err97 != nil {
			Usage()
			return
		}
		factory98 := thrift.NewTSimpleJSONProtocolFactory()
		jsProt99 := factory98.GetProtocol(mbTrans96)
		containerStruct0 := zipkinquery.NewTracesExistArgs()
		err100 := containerStruct0.ReadField1(jsProt99)
		if err100 != nil {
			Usage()
			return
		}
		argvalue0 := containerStruct0.TraceIds
		value0 := argvalue0
		fmt.Print(client.TracesExist(value0))
		fmt.Print("\n")
		break
	case "getTracesByIds":
		if flag.NArg()-1 != 2 {
			fmt.Fprintln(os.Stderr, "GetTracesByIds requires 2 args")
			flag.Usage()
		}
		arg101 := flag.Arg(1)
		mbTrans102 := thrift.NewTMemoryBufferLen(len(arg101))
		defer mbTrans102.Close()
		_, err103 := mbTrans102.WriteString(arg101)
		if err103 != nil {
			Usage()
			return
		}
		factory104 := thrift.NewTSimpleJSONProtocolFactory()
		jsProt105 := factory104.GetProtocol(mbTrans102)
		containerStruct0 := zipkinquery.NewGetTracesByIdsArgs()
		err106 := containerStruct0.ReadField1(jsProt105)
		if err106 != nil {
			Usage()
			return
		}
		argvalue0 := containerStruct0.TraceIds
		value0 := argvalue0
		arg107 := flag.Arg(2)
		mbTrans108 := thrift.NewTMemoryBufferLen(len(arg107))
		defer mbTrans108.Close()
		_, err109 := mbTrans108.WriteString(arg107)
		if err109 != nil {
			Usage()
			return
		}
		factory110 := thrift.NewTSimpleJSONProtocolFactory()
		jsProt111 := factory110.GetProtocol(mbTrans108)
		containerStruct1 := zipkinquery.NewGetTracesByIdsArgs()
		err112 := containerStruct1.ReadField2(jsProt111)
		if err112 != nil {
			Usage()
			return
		}
		argvalue1 := containerStruct1.Adjust
		value1 := argvalue1
		fmt.Print(client.GetTracesByIds(value0, value1))
		fmt.Print("\n")
		break
	case "getTraceTimelinesByIds":
		if flag.NArg()-1 != 2 {
			fmt.Fprintln(os.Stderr, "GetTraceTimelinesByIds requires 2 args")
			flag.Usage()
		}
		arg113 := flag.Arg(1)
		mbTrans114 := thrift.NewTMemoryBufferLen(len(arg113))
		defer mbTrans114.Close()
		_, err115 := mbTrans114.WriteString(arg113)
		if err115 != nil {
			Usage()
			return
		}
		factory116 := thrift.NewTSimpleJSONProtocolFactory()
		jsProt117 := factory116.GetProtocol(mbTrans114)
		containerStruct0 := zipkinquery.NewGetTraceTimelinesByIdsArgs()
		err118 := containerStruct0.ReadField1(jsProt117)
		if err118 != nil {
			Usage()
			return
		}
		argvalue0 := containerStruct0.TraceIds
		value0 := argvalue0
		arg119 := flag.Arg(2)
		mbTrans120 := thrift.NewTMemoryBufferLen(len(arg119))
		defer mbTrans120.Close()
		_, err121 := mbTrans120.WriteString(arg119)
		if err121 != nil {
			Usage()
			return
		}
		factory122 := thrift.NewTSimpleJSONProtocolFactory()
		jsProt123 := factory122.GetProtocol(mbTrans120)
		containerStruct1 := zipkinquery.NewGetTraceTimelinesByIdsArgs()
		err124 := containerStruct1.ReadField2(jsProt123)
		if err124 != nil {
			Usage()
			return
		}
		argvalue1 := containerStruct1.Adjust
		value1 := argvalue1
		fmt.Print(client.GetTraceTimelinesByIds(value0, value1))
		fmt.Print("\n")
		break
	case "getTraceSummariesByIds":
		if flag.NArg()-1 != 2 {
			fmt.Fprintln(os.Stderr, "GetTraceSummariesByIds requires 2 args")
			flag.Usage()
		}
		arg125 := flag.Arg(1)
		mbTrans126 := thrift.NewTMemoryBufferLen(len(arg125))
		defer mbTrans126.Close()
		_, err127 := mbTrans126.WriteString(arg125)
		if err127 != nil {
			Usage()
			return
		}
		factory128 := thrift.NewTSimpleJSONProtocolFactory()
		jsProt129 := factory128.GetProtocol(mbTrans126)
		containerStruct0 := zipkinquery.NewGetTraceSummariesByIdsArgs()
		err130 := containerStruct0.ReadField1(jsProt129)
		if err130 != nil {
			Usage()
			return
		}
		argvalue0 := containerStruct0.TraceIds
		value0 := argvalue0
		arg131 := flag.Arg(2)
		mbTrans132 := thrift.NewTMemoryBufferLen(len(arg131))
		defer mbTrans132.Close()
		_, err133 := mbTrans132.WriteString(arg131)
		if err133 != nil {
			Usage()
			return
		}
		factory134 := thrift.NewTSimpleJSONProtocolFactory()
		jsProt135 := factory134.GetProtocol(mbTrans132)
		containerStruct1 := zipkinquery.NewGetTraceSummariesByIdsArgs()
		err136 := containerStruct1.ReadField2(jsProt135)
		if err136 != nil {
			Usage()
			return
		}
		argvalue1 := containerStruct1.Adjust
		value1 := argvalue1
		fmt.Print(client.GetTraceSummariesByIds(value0, value1))
		fmt.Print("\n")
		break
	case "getTraceCombosByIds":
		if flag.NArg()-1 != 2 {
			fmt.Fprintln(os.Stderr, "GetTraceCombosByIds requires 2 args")
			flag.Usage()
		}
		arg137 := flag.Arg(1)
		mbTrans138 := thrift.NewTMemoryBufferLen(len(arg137))
		defer mbTrans138.Close()
		_, err139 := mbTrans138.WriteString(arg137)
		if err139 != nil {
			Usage()
			return
		}
		factory140 := thrift.NewTSimpleJSONProtocolFactory()
		jsProt141 := factory140.GetProtocol(mbTrans138)
		containerStruct0 := zipkinquery.NewGetTraceCombosByIdsArgs()
		err142 := containerStruct0.ReadField1(jsProt141)
		if err142 != nil {
			Usage()
			return
		}
		argvalue0 := containerStruct0.TraceIds
		value0 := argvalue0
		arg143 := flag.Arg(2)
		mbTrans144 := thrift.NewTMemoryBufferLen(len(arg143))
		defer mbTrans144.Close()
		_, err145 := mbTrans144.WriteString(arg143)
		if err145 != nil {
			Usage()
			return
		}
		factory146 := thrift.NewTSimpleJSONProtocolFactory()
		jsProt147 := factory146.GetProtocol(mbTrans144)
		containerStruct1 := zipkinquery.NewGetTraceCombosByIdsArgs()
		err148 := containerStruct1.ReadField2(jsProt147)
		if err148 != nil {
			Usage()
			return
		}
		argvalue1 := containerStruct1.Adjust
		value1 := argvalue1
		fmt.Print(client.GetTraceCombosByIds(value0, value1))
		fmt.Print("\n")
		break
	case "getServiceNames":
		if flag.NArg()-1 != 0 {
			fmt.Fprintln(os.Stderr, "GetServiceNames requires 0 args")
			flag.Usage()
		}
		fmt.Print(client.GetServiceNames())
		fmt.Print("\n")
		break
	case "getSpanNames":
		if flag.NArg()-1 != 1 {
			fmt.Fprintln(os.Stderr, "GetSpanNames requires 1 args")
			flag.Usage()
		}
		argvalue0 := flag.Arg(1)
		value0 := argvalue0
		fmt.Print(client.GetSpanNames(value0))
		fmt.Print("\n")
		break
	case "setTraceTimeToLive":
		if flag.NArg()-1 != 2 {
			fmt.Fprintln(os.Stderr, "SetTraceTimeToLive requires 2 args")
			flag.Usage()
		}
		argvalue0, err150 := (strconv.ParseInt(flag.Arg(1), 10, 64))
		if err150 != nil {
			Usage()
			return
		}
		value0 := argvalue0
		tmp1, err151 := (strconv.Atoi(flag.Arg(2)))
		if err151 != nil {
			Usage()
			return
		}
		argvalue1 := int32(tmp1)
		value1 := argvalue1
		fmt.Print(client.SetTraceTimeToLive(value0, value1))
		fmt.Print("\n")
		break
	case "getTraceTimeToLive":
		if flag.NArg()-1 != 1 {
			fmt.Fprintln(os.Stderr, "GetTraceTimeToLive requires 1 args")
			flag.Usage()
		}
		argvalue0, err152 := (strconv.ParseInt(flag.Arg(1), 10, 64))
		if err152 != nil {
			Usage()
			return
		}
		value0 := argvalue0
		fmt.Print(client.GetTraceTimeToLive(value0))
		fmt.Print("\n")
		break
	case "getDataTimeToLive":
		if flag.NArg()-1 != 0 {
			fmt.Fprintln(os.Stderr, "GetDataTimeToLive requires 0 args")
			flag.Usage()
		}
		fmt.Print(client.GetDataTimeToLive())
		fmt.Print("\n")
		break
	case "getDependencies":
		if flag.NArg()-1 != 2 {
			fmt.Fprintln(os.Stderr, "GetDependencies requires 2 args")
			flag.Usage()
		}
		argvalue0, err153 := (strconv.ParseInt(flag.Arg(1), 10, 64))
		if err153 != nil {
			Usage()
			return
		}
		value0 := argvalue0
		argvalue1, err154 := (strconv.ParseInt(flag.Arg(2), 10, 64))
		if err154 != nil {
			Usage()
			return
		}
		value1 := argvalue1
		fmt.Print(client.GetDependencies(value0, value1))
		fmt.Print("\n")
		break
	case "getTopAnnotations":
		if flag.NArg()-1 != 1 {
			fmt.Fprintln(os.Stderr, "GetTopAnnotations requires 1 args")
			flag.Usage()
		}
		argvalue0 := flag.Arg(1)
		value0 := argvalue0
		fmt.Print(client.GetTopAnnotations(value0))
		fmt.Print("\n")
		break
	case "getTopKeyValueAnnotations":
		if flag.NArg()-1 != 1 {
			fmt.Fprintln(os.Stderr, "GetTopKeyValueAnnotations requires 1 args")
			flag.Usage()
		}
		argvalue0 := flag.Arg(1)
		value0 := argvalue0
		fmt.Print(client.GetTopKeyValueAnnotations(value0))
		fmt.Print("\n")
		break
	case "getSpanDurations":
		if flag.NArg()-1 != 3 {
			fmt.Fprintln(os.Stderr, "GetSpanDurations requires 3 args")
			flag.Usage()
		}
		argvalue0, err157 := (strconv.ParseInt(flag.Arg(1), 10, 64))
		if err157 != nil {
			Usage()
			return
		}
		value0 := argvalue0
		argvalue1 := flag.Arg(2)
		value1 := argvalue1
		argvalue2 := flag.Arg(3)
		value2 := argvalue2
		fmt.Print(client.GetSpanDurations(value0, value1, value2))
		fmt.Print("\n")
		break
	case "getServiceNamesToTraceIds":
		if flag.NArg()-1 != 3 {
			fmt.Fprintln(os.Stderr, "GetServiceNamesToTraceIds requires 3 args")
			flag.Usage()
		}
		argvalue0, err160 := (strconv.ParseInt(flag.Arg(1), 10, 64))
		if err160 != nil {
			Usage()
			return
		}
		value0 := argvalue0
		argvalue1 := flag.Arg(2)
		value1 := argvalue1
		argvalue2 := flag.Arg(3)
		value2 := argvalue2
		fmt.Print(client.GetServiceNamesToTraceIds(value0, value1, value2))
		fmt.Print("\n")
		break
	case "":
		Usage()
		break
	default:
		fmt.Fprintln(os.Stderr, "Invalid function ", cmd)
	}
}
示例#12
0
文件: main.go 项目: 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)
}
示例#13
0
文件: main.go 项目: crezam/kit
func main() {
	// The addcli presumes no service discovery system, and expects users to
	// provide the direct address of an addsvc. This presumption is reflected in
	// the addcli binary and the the client packages: the -transport.addr flags
	// and various client constructors both expect host:port strings. For an
	// example service with a client built on top of a service discovery system,
	// see profilesvc.

	var (
		httpAddr         = flag.String("http.addr", "", "HTTP address of addsvc")
		grpcAddr         = flag.String("grpc.addr", "", "gRPC (HTTP) address of addsvc")
		thriftAddr       = flag.String("thrift.addr", "", "Thrift address of addsvc")
		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 Collector 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")
		method           = flag.String("method", "sum", "sum, concat")
	)
	flag.Parse()

	if len(flag.Args()) != 2 {
		fmt.Fprintf(os.Stderr, "usage: addcli [flags] <a> <b>\n")
		os.Exit(1)
	}

	// This is a demonstration client, which supports multiple tracers.
	// Your clients will probably just use one tracer.
	var tracer stdopentracing.Tracer
	{
		if *zipkinAddr != "" {
			collector, err := zipkin.NewKafkaCollector(
				strings.Split(*zipkinAddr, ","),
				zipkin.KafkaLogger(log.NewNopLogger()),
			)
			if err != nil {
				fmt.Fprintf(os.Stderr, "%v\n", err)
				os.Exit(1)
			}
			tracer, err = zipkin.NewTracer(
				zipkin.NewRecorder(collector, false, "localhost:8000", "addcli"),
			)
			if err != nil {
				fmt.Fprintf(os.Stderr, "%v\n", err)
				os.Exit(1)
			}
		} else if *appdashAddr != "" {
			tracer = appdashot.NewTracer(appdash.NewRemoteCollector(*appdashAddr))
		} else if *lightstepToken != "" {
			tracer = lightstep.NewTracer(lightstep.Options{
				AccessToken: *lightstepToken,
			})
			defer lightstep.FlushLightStepTracer(tracer)
		} else {
			tracer = stdopentracing.GlobalTracer() // no-op
		}
	}

	// This is a demonstration client, which supports multiple transports.
	// Your clients will probably just define and stick with 1 transport.

	var (
		service addsvc.Service
		err     error
	)
	if *httpAddr != "" {
		service, err = httpclient.New(*httpAddr, tracer, log.NewNopLogger())
	} else if *grpcAddr != "" {
		conn, err := grpc.Dial(*grpcAddr, grpc.WithInsecure(), grpc.WithTimeout(time.Second))
		if err != nil {
			fmt.Fprintf(os.Stderr, "error: %v", err)
			os.Exit(1)
		}
		defer conn.Close()
		service = grpcclient.New(conn, tracer, log.NewNopLogger())
	} else if *thriftAddr != "" {
		// It's necessary to do all of this construction in the func main,
		// because (among other reasons) we need to control the lifecycle of the
		// Thrift transport, i.e. close it eventually.
		var protocolFactory thrift.TProtocolFactory
		switch *thriftProtocol {
		case "compact":
			protocolFactory = thrift.NewTCompactProtocolFactory()
		case "simplejson":
			protocolFactory = thrift.NewTSimpleJSONProtocolFactory()
		case "json":
			protocolFactory = thrift.NewTJSONProtocolFactory()
		case "binary", "":
			protocolFactory = thrift.NewTBinaryProtocolFactoryDefault()
		default:
			fmt.Fprintf(os.Stderr, "error: invalid protocol %q\n", *thriftProtocol)
			os.Exit(1)
		}
		var transportFactory thrift.TTransportFactory
		if *thriftBufferSize > 0 {
			transportFactory = thrift.NewTBufferedTransportFactory(*thriftBufferSize)
		} else {
			transportFactory = thrift.NewTTransportFactory()
		}
		if *thriftFramed {
			transportFactory = thrift.NewTFramedTransportFactory(transportFactory)
		}
		transportSocket, err := thrift.NewTSocket(*thriftAddr)
		if err != nil {
			fmt.Fprintf(os.Stderr, "error: %v\n", err)
			os.Exit(1)
		}
		transport := transportFactory.GetTransport(transportSocket)
		if err := transport.Open(); err != nil {
			fmt.Fprintf(os.Stderr, "error: %v\n", err)
			os.Exit(1)
		}
		defer transport.Close()
		client := thriftadd.NewAddServiceClientFactory(transport, protocolFactory)
		service = thriftclient.New(client)
	} else {
		fmt.Fprintf(os.Stderr, "error: no remote address specified\n")
		os.Exit(1)
	}
	if err != nil {
		fmt.Fprintf(os.Stderr, "error: %v\n", err)
		os.Exit(1)
	}

	switch *method {
	case "sum":
		a, _ := strconv.ParseInt(flag.Args()[0], 10, 64)
		b, _ := strconv.ParseInt(flag.Args()[1], 10, 64)
		v, err := service.Sum(context.Background(), int(a), int(b))
		if err != nil {
			fmt.Fprintf(os.Stderr, "error: %v\n", err)
			os.Exit(1)
		}
		fmt.Fprintf(os.Stdout, "%d + %d = %d\n", a, b, v)

	case "concat":
		a := flag.Args()[0]
		b := flag.Args()[1]
		v, err := service.Concat(context.Background(), a, b)
		if err != nil {
			fmt.Fprintf(os.Stderr, "error: %v\n", err)
			os.Exit(1)
		}
		fmt.Fprintf(os.Stdout, "%q + %q = %q\n", a, b, v)

	default:
		fmt.Fprintf(os.Stderr, "error: invalid method %q\n", method)
		os.Exit(1)
	}
}