added setviafunc example (51220f87) · Commits · bsmrgo / playground

setviafunc/setviafunc.go

0 → 100644

+61 −0

Original line number	Diff line number	Diff line
		package setviafunc

		import "fmt"

		type Setviafunc struct {
		}

		func New() Setviafunc {
		return Setviafunc{}
		}

		func (s Setviafunc) String() string {
		return "<<Type is Setviafunc>>"
		}

		type Service struct {
		options map[string]interface{}
		}

		func NewService(of ...Setter) (*Service, error) {
		svc := &Service{
		options: map[string]interface{}{},
		}

		for _, s := range of {
		if err := s.Do(svc); err != nil {
		return nil, err
		}
		}

		return svc, nil
		}

		func (svc *Service) Run() error {
		return nil
		}

		type Setter interface {
		Do(*Service) error
		}

		type WithAddrPort struct {
		addr string
		port int
		addPort string
		}

		func NewAddrPort(addr string, port int) *WithAddrPort {
		return &WithAddrPort{
		addr: addr,
		port: port,
		addPort: fmt.Sprintf("%s:%d", addr, port),
		}
		}

		func (s WithAddrPort) Do(svc Service) error {
		svc.options["addr"] = s.addr
		svc.options["port"] = s.port
		svc.options["addrPort"] = s.addPort
		return nil
		}

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Original line number	Diff line number	Diff line
		package setviafunc

		import "testing"

		func TestServiceSettings(t *testing.T) {
		svc, err := NewService(
		NewAddrPort("127.0.0.1", 2000),
		)

		if err != nil {
		t.Fatalf("NewService() failed with: %s", err)
		}

		if err := svc.Run(); err != nil {
		t.Fatalf("svc.Run() failed with: %s", err)
		}
		}