Example #1
0
// Registry sets the registry for the service
// and the underlying components
func Registry(r registry.Registry) Option {
	return func(o *Options) {
		o.Registry = r
		// Update Client and Server
		o.Client.Init(client.Registry(r))
		o.Server.Init(server.Registry(r))
		// Update Selector
		o.Client.Options().Selector.Init(selector.Registry(r))
	}
}
Example #2
0
func TestGRPCServer(t *testing.T) {
	r := mock.NewRegistry()
	s := NewServer(
		server.Name("foo"),
		server.Registry(r),
	)

	pb.RegisterSayHandler(s, &sayServer{})

	if err := s.Start(); err != nil {
		t.Fatalf("failed to start: %v", err)
	}

	if err := s.Register(); err != nil {
		t.Fatalf("failed to register: %v", err)
	}

	// check registration
	services, err := r.GetService("foo")
	if err != nil || len(services) == 0 {
		t.Fatal("failed to get service: %v # %d", err, len(services))
	}

	defer func() {
		if err := s.Deregister(); err != nil {
			t.Fatalf("failed to deregister: %v", err)
		}

		if err := s.Stop(); err != nil {
			t.Fatalf("failed to stop: %v", err)
		}
	}()

	cc, err := grpc.Dial(s.Options().Address, grpc.WithInsecure())
	if err != nil {
		t.Fatal("failed to dial server: %v", err)
	}

	rsp := pb.Response{}

	if err := grpc.Invoke(context.Background(), "Say.Hello", &pb.Request{Name: "John"}, &rsp, cc); err != nil {
		t.Fatal("error calling server: %v", err)
	}

	if rsp.Msg != "Hello John" {
		t.Fatalf("Got unexpected response %v", rsp.Msg)
	}
}
Example #3
0
func (c *cmd) Before(ctx *cli.Context) error {
	// Due to logger issues with glog, we need to do this
	os.Args = os.Args[:1]
	flag.Set("logtostderr", fmt.Sprintf("%v", ctx.Bool("logtostderr")))
	flag.Set("alsologtostderr", fmt.Sprintf("%v", ctx.Bool("alsologtostderr")))
	flag.Set("stderrthreshold", ctx.String("stderrthreshold"))
	flag.Set("log_backtrace_at", ctx.String("log_backtrace_at"))
	flag.Set("log_dir", ctx.String("log_dir"))
	flag.Set("vmodule", ctx.String("vmodule"))
	flag.Set("v", ctx.String("v"))
	flag.Parse()

	// If flags are set then use them otherwise do nothing
	var serverOpts []server.Option
	var clientOpts []client.Option

	// Set the broker
	if len(ctx.String("broker")) > 0 {
		if b, ok := c.opts.Brokers[ctx.String("broker")]; ok {
			n := b(strings.Split(ctx.String("broker_address"), ","))
			*c.opts.Broker = n
		} else {
			return fmt.Errorf("Broker %s not found", ctx.String("broker"))
		}

		serverOpts = append(serverOpts, server.Broker(*c.opts.Broker))
		clientOpts = append(clientOpts, client.Broker(*c.opts.Broker))

	}

	// Set the registry
	if len(ctx.String("registry")) > 0 {
		if r, ok := c.opts.Registries[ctx.String("registry")]; ok {
			n := r(strings.Split(ctx.String("registry_address"), ","))
			*c.opts.Registry = n
		} else {
			return fmt.Errorf("Registry %s not found", ctx.String("registry"))
		}

		serverOpts = append(serverOpts, server.Registry(*c.opts.Registry))
		clientOpts = append(clientOpts, client.Registry(*c.opts.Registry))

		(*c.opts.Selector).Init(selector.Registry(*c.opts.Registry))
		clientOpts = append(clientOpts, client.Selector(*c.opts.Selector))

		(*c.opts.Broker).Init(broker.Registry(*c.opts.Registry))
	}

	// Set the selector
	if len(ctx.String("selector")) > 0 {
		if s, ok := c.opts.Selectors[ctx.String("selector")]; ok {
			n := s(selector.Registry(*c.opts.Registry))
			*c.opts.Selector = n
		} else {
			return fmt.Errorf("Selector %s not found", ctx.String("selector"))
		}

		// No server option here. Should there be?
		clientOpts = append(clientOpts, client.Selector(*c.opts.Selector))
	}

	// Set the transport
	if len(ctx.String("transport")) > 0 {
		if t, ok := c.opts.Transports[ctx.String("transport")]; ok {
			n := t(strings.Split(ctx.String("transport_address"), ","))
			*c.opts.Transport = n
		} else {
			return fmt.Errorf("Transport %s not found", ctx.String("transport"))
		}

		serverOpts = append(serverOpts, server.Transport(*c.opts.Transport))
		clientOpts = append(clientOpts, client.Transport(*c.opts.Transport))
	}

	// Parse the server options
	metadata := make(map[string]string)
	for _, d := range ctx.StringSlice("server_metadata") {
		var key, val string
		parts := strings.Split(d, "=")
		key = parts[0]
		if len(parts) > 1 {
			val = strings.Join(parts[1:], "=")
		}
		metadata[key] = val
	}

	if len(metadata) > 0 {
		serverOpts = append(serverOpts, server.Metadata(metadata))
	}

	if len(ctx.String("server_name")) > 0 {
		serverOpts = append(serverOpts, server.Name(ctx.String("server_name")))
	}

	if len(ctx.String("server_version")) > 0 {
		serverOpts = append(serverOpts, server.Version(ctx.String("server_version")))
	}

	if len(ctx.String("server_id")) > 0 {
		serverOpts = append(serverOpts, server.Id(ctx.String("server_id")))
	}

	if len(ctx.String("server_address")) > 0 {
		serverOpts = append(serverOpts, server.Address(ctx.String("server_address")))
	}

	if len(ctx.String("server_advertise")) > 0 {
		serverOpts = append(serverOpts, server.Advertise(ctx.String("server_advertise")))
	}

	// We have some command line opts for the server.
	// Lets set it up
	if len(serverOpts) > 0 {
		(*c.opts.Server).Init(serverOpts...)
	}

	// Use an init option?
	if len(clientOpts) > 0 {
		(*c.opts.Client).Init(clientOpts...)
	}

	return nil
}
Example #4
0
func (c *cmd) Before(ctx *cli.Context) error {
	// If flags are set then use them otherwise do nothing
	var serverOpts []server.Option
	var clientOpts []client.Option

	// Set the broker
	if name := ctx.String("broker"); len(name) > 0 || len(ctx.String("broker_address")) > 0 {
		if len(name) == 0 {
			name = defaultBroker
		}

		if b, ok := c.opts.Brokers[name]; ok {
			n := b(broker.Addrs(strings.Split(ctx.String("broker_address"), ",")...))
			*c.opts.Broker = n
		} else {
			return fmt.Errorf("Broker %s not found", name)
		}

		serverOpts = append(serverOpts, server.Broker(*c.opts.Broker))
		clientOpts = append(clientOpts, client.Broker(*c.opts.Broker))

	}

	// Set the registry
	if name := ctx.String("registry"); len(name) > 0 || len(ctx.String("registry_address")) > 0 {
		if len(name) == 0 {
			name = defaultRegistry
		}

		if r, ok := c.opts.Registries[name]; ok {
			n := r(registry.Addrs(strings.Split(ctx.String("registry_address"), ",")...))
			*c.opts.Registry = n
		} else {
			return fmt.Errorf("Registry %s not found", name)
		}

		serverOpts = append(serverOpts, server.Registry(*c.opts.Registry))
		clientOpts = append(clientOpts, client.Registry(*c.opts.Registry))

		(*c.opts.Selector).Init(selector.Registry(*c.opts.Registry))
		clientOpts = append(clientOpts, client.Selector(*c.opts.Selector))

		(*c.opts.Broker).Init(broker.Registry(*c.opts.Registry))
	}

	// Set the selector
	if name := ctx.String("selector"); len(name) > 0 {
		if s, ok := c.opts.Selectors[name]; ok {
			n := s(selector.Registry(*c.opts.Registry))
			*c.opts.Selector = n
		} else {
			return fmt.Errorf("Selector %s not found", name)
		}

		// No server option here. Should there be?
		clientOpts = append(clientOpts, client.Selector(*c.opts.Selector))
	}

	// Set the transport
	if name := ctx.String("transport"); len(name) > 0 || len(ctx.String("transport_address")) > 0 {
		if len(name) == 0 {
			name = defaultTransport
		}

		if t, ok := c.opts.Transports[name]; ok {
			n := t(transport.Addrs(strings.Split(ctx.String("transport_address"), ",")...))
			*c.opts.Transport = n
		} else {
			return fmt.Errorf("Transport %s not found", name)
		}

		serverOpts = append(serverOpts, server.Transport(*c.opts.Transport))
		clientOpts = append(clientOpts, client.Transport(*c.opts.Transport))
	}

	// Parse the server options
	metadata := make(map[string]string)
	for _, d := range ctx.StringSlice("server_metadata") {
		var key, val string
		parts := strings.Split(d, "=")
		key = parts[0]
		if len(parts) > 1 {
			val = strings.Join(parts[1:], "=")
		}
		metadata[key] = val
	}

	if len(metadata) > 0 {
		serverOpts = append(serverOpts, server.Metadata(metadata))
	}

	if len(ctx.String("server_name")) > 0 {
		serverOpts = append(serverOpts, server.Name(ctx.String("server_name")))
	}

	if len(ctx.String("server_version")) > 0 {
		serverOpts = append(serverOpts, server.Version(ctx.String("server_version")))
	}

	if len(ctx.String("server_id")) > 0 {
		serverOpts = append(serverOpts, server.Id(ctx.String("server_id")))
	}

	if len(ctx.String("server_address")) > 0 {
		serverOpts = append(serverOpts, server.Address(ctx.String("server_address")))
	}

	if len(ctx.String("server_advertise")) > 0 {
		serverOpts = append(serverOpts, server.Advertise(ctx.String("server_advertise")))
	}

	// client opts
	if r := ctx.Int("client_retries"); r > 0 {
		clientOpts = append(clientOpts, client.Retries(r))
	}

	if t := ctx.String("client_request_timeout"); len(t) > 0 {
		d, err := time.ParseDuration(t)
		if err != nil {
			return fmt.Errorf("failed to parse client_request_timeout: %v", t)
		}
		clientOpts = append(clientOpts, client.RequestTimeout(d))
	}

	if r := ctx.Int("client_pool_size"); r > 0 {
		clientOpts = append(clientOpts, client.PoolSize(r))
	}

	if t := ctx.String("client_pool_ttl"); len(t) > 0 {
		d, err := time.ParseDuration(t)
		if err != nil {
			return fmt.Errorf("failed to parse client_pool_ttl: %v", t)
		}
		clientOpts = append(clientOpts, client.PoolTTL(d))
	}

	// We have some command line opts for the server.
	// Lets set it up
	if len(serverOpts) > 0 {
		(*c.opts.Server).Init(serverOpts...)
	}

	// Use an init option?
	if len(clientOpts) > 0 {
		(*c.opts.Client).Init(clientOpts...)
	}

	return nil
}
Example #5
0
func TestHTTPServer(t *testing.T) {
	reg := mock.NewRegistry()

	// create server
	srv := NewServer(server.Registry(reg))

	// create server mux
	mux := http.NewServeMux()
	mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
		w.Write([]byte(`hello world`))
	})

	// create handler
	hd := srv.NewHandler(mux)

	// register handler
	if err := srv.Handle(hd); err != nil {
		t.Fatal(err)
	}

	// start server
	if err := srv.Start(); err != nil {
		t.Fatal(err)
	}

	// register server
	if err := srv.Register(); err != nil {
		t.Fatal(err)
	}

	// lookup server
	service, err := reg.GetService(server.DefaultName)
	if err != nil {
		t.Fatal(err)
	}

	if len(service) != 1 {
		t.Fatalf("Expected 1 service got %d: %+v", len(service), service)
	}

	if len(service[0].Nodes) != 1 {
		t.Fatalf("Expected 1 node got %d: %+v", len(service[0].Nodes), service[0].Nodes)
	}

	// make request
	rsp, err := http.Get(fmt.Sprintf("http://%s:%d", service[0].Nodes[0].Address, service[0].Nodes[0].Port))
	if err != nil {
		t.Fatal(err)
	}
	defer rsp.Body.Close()

	b, err := ioutil.ReadAll(rsp.Body)
	if err != nil {
		t.Fatal(err)
	}

	if s := string(b); s != "hello world" {
		t.Fatalf("Expected response %s, got %s", "hello world", s)
	}

	// deregister server
	if err := srv.Deregister(); err != nil {
		t.Fatal(err)
	}

	// try get service
	service, err = reg.GetService(server.DefaultName)
	if err == nil {
		t.Fatal("Expected %v got %+v", registry.ErrNotFound, service)
	}

	// stop server
	if err := srv.Stop(); err != nil {
		t.Fatal(err)
	}
}
Example #6
0
func TestRPCHandler(t *testing.T) {
	r := rmock.NewRegistry()

	(*cmd.DefaultOptions().Client).Init(
		client.Registry(r),
		client.Selector(selector.NewSelector(selector.Registry(r))),
	)

	(*cmd.DefaultOptions().Server).Init(
		server.Name("test"),
		server.Registry(r),
	)

	(*cmd.DefaultOptions().Server).Handle(
		(*cmd.DefaultOptions().Server).NewHandler(&TestHandler{t, metadata.Metadata{"Foo": "Bar"}}),
	)

	if err := server.Start(); err != nil {
		t.Fatal(err)
	}

	if err := server.Register(); err != nil {
		t.Fatal(err)
	}

	w := httptest.NewRecorder()

	request := map[string]string{
		"service": "test",
		"method":  "TestHandler.Exec",
		"request": "{}",
	}

	rb, err := json.Marshal(request)
	if err != nil {
		t.Fatal(err)
	}

	b := bytes.NewBuffer(rb)

	req, err := http.NewRequest("POST", "/rpc", b)
	if err != nil {
		t.Fatal(err)
	}
	req.Header.Set("Content-Type", "application/json")
	req.Header.Set("Foo", "Bar")

	RPC(w, req)

	if err := server.Deregister(); err != nil {
		t.Fatal(err)
	}

	if err := server.Stop(); err != nil {
		t.Fatal(err)
	}

	if w.Code != 200 {
		t.Fatalf("Expected 200 response got %d %s", w.Code, w.Body.String())
	}

}