[#121] client: Make PrmObjectSearch fields public

Signed-off-by: Airat Arifullin <a.arifullin@yadro.com>

client/object_search.go

@@ -24,19 +24,26 @@ import (
 
 // PrmObjectSearch groups parameters of ObjectSearch operation.
 type PrmObjectSearch struct {
-	meta v2session.RequestMetaHeader
+	XHeaders []string
 
-	key *ecdsa.PrivateKey
+	Local bool
 
-	cnrSet bool
-	cnrID  cid.ID
+	BearerToken *bearer.Token
 
-	filters object.SearchFilters
+	Session *session.Object
+
+	ContainerID *cid.ID
+
+	Key *ecdsa.PrivateKey
+
+	Filters object.SearchFilters
 }
 
 // MarkLocal tells the server to execute the operation locally.
+//
+// Deprecated: Use PrmObjectSearch.Local instead.
 func (x *PrmObjectSearch) MarkLocal() {
-	x.meta.SetTTL(1)
+	x.Local = true
 }
 
 // WithinSession specifies session within which the search query must be executed.
@@ -45,10 +52,10 @@ func (x *PrmObjectSearch) MarkLocal() {
 // This may affect the execution of an operation (e.g. access control).
 //
 // Must be signed.
+//
+// Deprecated: Use PrmObjectSearch.Session instead.
 func (x *PrmObjectSearch) WithinSession(t session.Object) {
-	var tokv2 v2session.Token
-	t.WriteToV2(&tokv2)
-	x.meta.SetSessionToken(&tokv2)
+	x.Session = &t
 }
 
 // WithBearerToken attaches bearer token to be used for the operation.
@@ -56,37 +63,44 @@ func (x *PrmObjectSearch) WithinSession(t session.Object) {
 // If set, underlying eACL rules will be used in access control.
 //
 // Must be signed.
+//
+// Deprecated: Use PrmObjectSearch.BearerToken instead.
 func (x *PrmObjectSearch) WithBearerToken(t bearer.Token) {
-	var v2token acl.BearerToken
-	t.WriteToV2(&v2token)
-	x.meta.SetBearerToken(&v2token)
+	x.BearerToken = &t
 }
 
 // WithXHeaders specifies list of extended headers (string key-value pairs)
 // to be attached to the request. Must have an even length.
 //
 // Slice must not be mutated until the operation completes.
+//
+// Deprecated: Use PrmObjectSearch.XHeaders instead.
 func (x *PrmObjectSearch) WithXHeaders(hs ...string) {
-	writeXHeadersToMeta(hs, &x.meta)
+	x.XHeaders = hs
 }
 
 // UseKey specifies private key to sign the requests.
 // If key is not provided, then Client default key is used.
+//
+// Deprecated: Use PrmObjectSearch.Key instead.
 func (x *PrmObjectSearch) UseKey(key ecdsa.PrivateKey) {
-	x.key = &key
+	x.Key = &key
 }
 
 // InContainer specifies the container in which to look for objects.
 // Required parameter.
+//
+// Deprecated: Use PrmObjectSearch.ContainerID instead.
 func (x *PrmObjectSearch) InContainer(id cid.ID) {
-	x.cnrID = id
-	x.cnrSet = true
+	x.ContainerID = &id
 }
 
 // SetFilters sets filters by which to select objects. All container objects
 // match unset/empty filters.
+//
+// Deprecated: Use PrmObjectSearch.Filters instead.
 func (x *PrmObjectSearch) SetFilters(filters object.SearchFilters) {
-	x.filters = filters
+	x.Filters = filters
 }
 
 // ResObjectSearch groups the final result values of ObjectSearch operation.
@@ -212,6 +226,48 @@ func (x *ObjectListReader) Close() (*ResObjectSearch, error) {
 	return &x.res, nil
 }
 
+func (x *PrmObjectSearch) buildRequest(c *Client) (*v2object.SearchRequest, error) {
+	if x.ContainerID == nil {
+		return nil, errorMissingContainer
+	}
+
+	if len(x.XHeaders)%2 != 0 {
+		return nil, errorInvalidXHeaders
+	}
+
+	meta := new(v2session.RequestMetaHeader)
+	writeXHeadersToMeta(x.XHeaders, meta)
+
+	if x.BearerToken != nil {
+		v2BearerToken := new(acl.BearerToken)
+		x.BearerToken.WriteToV2(v2BearerToken)
+		meta.SetBearerToken(v2BearerToken)
+	}
+
+	if x.Session != nil {
+		v2SessionToken := new(v2session.Token)
+		x.Session.WriteToV2(v2SessionToken)
+		meta.SetSessionToken(v2SessionToken)
+	}
+
+	if x.Local {
+		meta.SetTTL(1)
+	}
+	cnrV2 := new(v2refs.ContainerID)
+	x.ContainerID.WriteToV2(cnrV2)
+
+	body := new(v2object.SearchRequestBody)
+	body.SetVersion(1)
+	body.SetContainerID(cnrV2)
+	body.SetFilters(x.Filters.ToV2())
+
+	req := new(v2object.SearchRequest)
+	req.SetBody(body)
+	c.prepareRequest(req, meta)
+
+	return req, nil
+}
+
 // ObjectSearchInit initiates object selection through a remote server using FrostFS API protocol.
 //
 // The call only opens the transmission channel, explicit fetching of matched objects
@@ -221,30 +277,17 @@ func (x *ObjectListReader) Close() (*ResObjectSearch, error) {
 // Returns an error if parameters are set incorrectly (see PrmObjectSearch docs).
 // Context is required and must not be nil. It is used for network communication.
 func (c *Client) ObjectSearchInit(ctx context.Context, prm PrmObjectSearch) (*ObjectListReader, error) {
-	// check parameters
-	if !prm.cnrSet {
-		return nil, errorMissingContainer
+	req, err := prm.buildRequest(c)
+	if err != nil {
+		return nil, err
 	}
 
-	var cidV2 v2refs.ContainerID
-	prm.cnrID.WriteToV2(&cidV2)
-
-	var body v2object.SearchRequestBody
-	body.SetVersion(1)
-	body.SetContainerID(&cidV2)
-	body.SetFilters(prm.filters.ToV2())
-
-	// init reader
-	var req v2object.SearchRequest
-	req.SetBody(&body)
-	c.prepareRequest(&req, &prm.meta)
-
-	key := prm.key
+	key := prm.Key
 	if key == nil {
 		key = &c.prm.key
 	}
 
-	err := signature.SignServiceMessage(key, &req)
+	err = signature.SignServiceMessage(key, req)
 	if err != nil {
 		return nil, fmt.Errorf("sign request: %w", err)
 	}
@@ -252,7 +295,7 @@ func (c *Client) ObjectSearchInit(ctx context.Context, prm PrmObjectSearch) (*Ob
 	var r ObjectListReader
 	ctx, r.cancelCtxStream = context.WithCancel(ctx)
 
-	r.stream, err = rpcapi.SearchObjects(&c.c, &req, client.WithContext(ctx))
+	r.stream, err = rpcapi.SearchObjects(&c.c, req, client.WithContext(ctx))
 	if err != nil {
 		return nil, fmt.Errorf("open stream: %w", err)
 	}