Ejemplo n.º 1
0
func TestBroker(t *testing.T) {
	url := os.Getenv("REDIS_URL")
	if url == "" {
		t.Skip("REDIS_URL not defined")
	}

	b := NewBroker(broker.Addrs(url))

	// Only setting options.
	b.Init()

	if err := b.Connect(); err != nil {
		t.Fatal(err)
	}
	defer b.Disconnect()

	// Large enough buffer to not block.
	msgs := make(chan string, 10)

	go func() {
		s1 := subscribe(t, b, "test", func(p broker.Publication) error {
			m := p.Message()
			msgs <- fmt.Sprintf("s1:%s", string(m.Body))
			return nil
		})

		s2 := subscribe(t, b, "test", func(p broker.Publication) error {
			m := p.Message()
			msgs <- fmt.Sprintf("s2:%s", string(m.Body))
			return nil
		})

		publish(t, b, "test", &broker.Message{
			Body: []byte("hello"),
		})

		publish(t, b, "test", &broker.Message{
			Body: []byte("world"),
		})

		unsubscribe(t, s1)

		publish(t, b, "test", &broker.Message{
			Body: []byte("other"),
		})

		unsubscribe(t, s2)

		publish(t, b, "test", &broker.Message{
			Body: []byte("none"),
		})

		close(msgs)
	}()

	var actual []string
	for msg := range msgs {
		actual = append(actual, msg)
	}

	exp := []string{
		"s1:hello",
		"s2:hello",
		"s1:world",
		"s2:world",
		"s2:other",
	}

	// Order is not guaranteed.
	sort.Strings(actual)
	sort.Strings(exp)

	if !reflect.DeepEqual(actual, exp) {
		t.Fatalf("expected %v, got %v", exp, actual)
	}
}
Ejemplo n.º 2
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
}