[#277] getsvc: Move headOnly to request params

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>

pkg/services/object/get/assemble.go

@@ -123,12 +123,12 @@ func (exec *execCtx) GetObject(ctx context.Context, id oid.ID, rng *objectSDK.Ra
 	p := exec.prm
 	p.common = p.common.WithLocalOnly(false)
 	p.objWriter = w
-	p.SetRange(rng)
+	p.rng = rng
 
 	p.addr.SetContainer(exec.containerID())
 	p.addr.SetObject(id)
 
-	if err := exec.svc.get(ctx, p.commonPrm, withPayloadRange(rng)); err != nil {
+	if err := exec.svc.get(ctx, p); err != nil {
 		return nil, err
 	}
 	return w.Object(), nil

pkg/services/object/get/exec.go

@@ -20,10 +20,16 @@ type statusError struct {
 	err    error
 }
 
+type RequestParameters struct {
+	commonPrm
+	head bool
+	rng  *objectSDK.Range
+}
+
 type execCtx struct {
 	svc *Service
 
-	prm RangePrm
+	prm RequestParameters
 
 	statusError
 
@@ -33,13 +39,9 @@ type execCtx struct {
 
 	collectedObject *objectSDK.Object
 
-	head bool
-
 	curProcEpoch uint64
 }
 
-type execOption func(*execCtx)
-
 const (
 	statusUndefined int = iota
 	statusOK
@@ -48,18 +50,6 @@ const (
 	statusOutOfRange
 )
 
-func headOnly() execOption {
-	return func(c *execCtx) {
-		c.head = true
-	}
-}
-
-func withPayloadRange(r *objectSDK.Range) execOption {
-	return func(c *execCtx) {
-		c.prm.rng = r
-	}
-}
-
 func (exec *execCtx) setLogger(l *logger.Logger) {
 	req := "GET"
 	if exec.headOnly() {
@@ -126,7 +116,7 @@ func (exec *execCtx) ctxRange() *objectSDK.Range {
 }
 
 func (exec *execCtx) headOnly() bool {
-	return exec.head
+	return exec.prm.head
 }
 
 func (exec *execCtx) netmapEpoch() uint64 {

pkg/services/object/get/get.go

@@ -11,18 +11,18 @@ import (
 
 // Get serves a request to get an object by address, and returns Streamer instance.
 func (s *Service) Get(ctx context.Context, prm Prm) error {
-	return s.get(ctx, prm.commonPrm)
+	return s.get(ctx, RequestParameters{
+		commonPrm: prm.commonPrm,
+	})
 }
 
 // GetRange serves a request to get an object by address, and returns Streamer instance.
 func (s *Service) GetRange(ctx context.Context, prm RangePrm) error {
-	return s.getRange(ctx, prm)
+	return s.get(ctx, RequestParameters{
+		commonPrm: prm.commonPrm,
+		rng:       prm.rng,
+	})
 }
-
-func (s *Service) getRange(ctx context.Context, prm RangePrm) error {
-	return s.get(ctx, prm.commonPrm, withPayloadRange(prm.rng))
-}
-
 func (s *Service) GetRangeHash(ctx context.Context, prm RangeHashPrm) (*RangeHashRes, error) {
 	hashes := make([][]byte, 0, len(prm.rngs))
 
@@ -34,16 +34,15 @@ func (s *Service) GetRangeHash(ctx context.Context, prm RangeHashPrm) (*RangeHas
 		// 1. Potential gains are insignificant when operating in the Internet given typical latencies and losses.
 		// 2. Parallel solution is more complex in terms of code.
 		// 3. TZ-hash is likely to be disabled in private installations.
-		rngPrm := RangePrm{
+		reqPrm := RequestParameters{
 			commonPrm: prm.commonPrm,
+			rng:       &rng,
 		}
-
-		rngPrm.SetRange(&rng)
-		rngPrm.SetChunkWriter(&hasherWrapper{
+		reqPrm.SetChunkWriter(&hasherWrapper{
 			hash: util.NewSaltingWriter(h, prm.salt),
 		})
 
-		if err := s.getRange(ctx, rngPrm); err != nil {
+		if err := s.get(ctx, reqPrm); err != nil {
 			return nil, err
 		}
 
@@ -60,22 +59,19 @@ func (s *Service) GetRangeHash(ctx context.Context, prm RangeHashPrm) (*RangeHas
 // Returns ErrNotFound if the header was not received for the call.
 // Returns SplitInfoError if object is virtual and raw flag is set.
 func (s *Service) Head(ctx context.Context, prm HeadPrm) error {
-	return s.get(ctx, prm.commonPrm, headOnly())
+	return s.get(ctx, RequestParameters{
+		head:      true,
+		commonPrm: prm.commonPrm,
+	})
 }
 
-func (s *Service) get(ctx context.Context, prm commonPrm, opts ...execOption) error {
+func (s *Service) get(ctx context.Context, prm RequestParameters) error {
 	exec := &execCtx{
-		svc: s,
-		prm: RangePrm{
-			commonPrm: prm,
-		},
+		svc:       s,
+		prm:       prm,
 		infoSplit: object.NewSplitInfo(),
 	}
 
-	for i := range opts {
-		opts[i](exec)
-	}
-
 	exec.setLogger(s.log)
 
 	exec.execute(ctx)

pkg/services/object/get/prm.go

@@ -107,7 +107,7 @@ func (p *Prm) SetObjectWriter(w ObjectWriter) {
 }
 
 // SetChunkWriter sets target component to write the object payload range.
-func (p *RangePrm) SetChunkWriter(w ChunkWriter) {
+func (p *commonPrm) SetChunkWriter(w ChunkWriter) {
 	p.objWriter = &partWriter{
 		chunkWriter: w,
 	}