api: support IPROTO_FEATURE_SPACE_AND_INDEX_NAMES

Support `IPROTO_FEATURE_SPACE_AND_INDEX_NAMES` for Tarantool
version >= 3.0.0-alpha. It allows to use space and index names in requests
instead of their IDs.

`ResolveSpaceIndex` function for `SchemaResolver` interface split into two:
`ResolveSpace` and `ResolveIndex`. `NamesUseSupported` function added into the
interface to get information if usage of space and index names is supported.

Closes #338

CHANGELOG.md

@@ -22,6 +22,9 @@ Versioning](http://semver.org/spec/v2.0.0.html) except to the first release.
 - Support `crud.schema` request (#336)
 - Support `IPROTO_WATCH_ONCE` request type for Tarantool 
   version >= 3.0.0-alpha1 (#337)
+- Support `IPROTO_FEATURE_SPACE_AND_INDEX_NAMES` for Tarantool
+  version >= 3.0.0-alpha1 (#338). It allows to use space and index names 
+  in requests instead of their IDs
 
 ### Changed
 

README.md

@@ -239,6 +239,13 @@ and user may cancel it in process.
 * `iproto.Feature` type used instead of `ProtocolFeature`.
 * `iproto.IPROTO_FEATURE_` constants used instead of local ones.
 
+#### Schema changes
+
+`ResolveSpaceIndex` function for `SchemaResolver` interface split into two: 
+`ResolveSpace` and `ResolveIndex`. `NamesUseSupported` function added into the 
+interface to get information if the usage of space and index names in requests 
+is supported.
+
 ## Contributing
 
 See [the contributing guide](CONTRIBUTING.md) for detailed instructions on how

connection.go

@@ -162,6 +162,8 @@ type Connection struct {
 	cond  *sync.Cond
 	// Schema contains schema loaded on connection.
 	Schema *Schema
+	// schemaResolver contains a SchemaResolver implementation.
+	schemaResolver SchemaResolver
 	// requestId contains the last request ID for requests with nil context.
 	requestId uint32
 	// contextRequestId contains the last request ID for requests with context.
@@ -384,6 +386,7 @@ func Connect(ctx context.Context, addr string, opts Opts) (conn *Connection, err
 		control:          make(chan struct{}),
 		opts:             opts.Clone(),
 		dec:              msgpack.NewDecoder(&smallBuf{}),
+		schemaResolver:   &DefaultSchemaResolver{},
 	}
 	maxprocs := uint32(runtime.GOMAXPROCS(-1))
 	if conn.opts.Concurrency == 0 || conn.opts.Concurrency > maxprocs*128 {
@@ -1102,7 +1105,7 @@ func (conn *Connection) putFuture(fut *Future, req Request, streamId uint64) {
 	}
 	blen := shard.buf.Len()
 	reqid := fut.requestId
-	if err := pack(&shard.buf, shard.enc, reqid, req, streamId, conn.Schema); err != nil {
+	if err := pack(&shard.buf, shard.enc, reqid, req, streamId, conn.schemaResolver); err != nil {
 		shard.buf.Trunc(blen)
 		shard.bufmut.Unlock()
 		if f := conn.fetchFuture(reqid); f == fut {

crud/request_test.go

@@ -70,27 +70,33 @@ var expectedOpts = map[string]interface{}{
 }
 
 type ValidSchemeResolver struct {
+	tarantool.SchemaResolver
 }
 
-func (*ValidSchemeResolver) ResolveSpaceIndex(s, i interface{}) (uint32, uint32, error) {
-	var spaceNo, indexNo uint32
+func (*ValidSchemeResolver) ResolveSpace(s interface{}) (uint32, error) {
+	var spaceNo uint32
 	if s != nil {
 		spaceNo = uint32(s.(int))
 	} else {
 		spaceNo = defaultSpace
 	}
+	if spaceNo == invalidSpace {
+		return 0, errors.New(invalidSpaceMsg)
+	}
+	return spaceNo, nil
+}
+
+func (*ValidSchemeResolver) ResolveIndex(i interface{}, spaceNo uint32) (uint32, error) {
+	var indexNo uint32
 	if i != nil {
 		indexNo = uint32(i.(int))
 	} else {
 		indexNo = defaultIndex
 	}
-	if spaceNo == invalidSpace {
-		return 0, 0, errors.New(invalidSpaceMsg)
-	}
 	if indexNo == invalidIndex {
-		return 0, 0, errors.New(invalidIndexMsg)
+		return 0, errors.New(invalidIndexMsg)
 	}
-	return spaceNo, indexNo, nil
+	return indexNo, nil
 }
 
 var resolver ValidSchemeResolver

example_test.go

@@ -231,6 +231,21 @@ func ExampleSelectRequest() {
 	// response is [{{} 1111 hello world}]
 }
 
+func ExampleSelectRequest_spaceAndIndexNames() {
+	conn := exampleConnect(opts)
+	defer conn.Close()
+
+	req := tarantool.NewSelectRequest(spaceName)
+	req.Index(indexName)
+	resp, err := conn.Do(req).Get()
+
+	if err != nil {
+		fmt.Printf("Failed to execute the request: %s\n", err)
+	} else {
+		fmt.Println(resp.Data)
+	}
+}
+
 func ExampleInsertRequest() {
 	conn := exampleConnect(opts)
 	defer conn.Close()
@@ -273,6 +288,20 @@ func ExampleInsertRequest() {
 	// Data [[32 test one]]
 }
 
+func ExampleInsertRequest_spaceAndIndexNames() {
+	conn := exampleConnect(opts)
+	defer conn.Close()
+
+	req := tarantool.NewInsertRequest(spaceName)
+	resp, err := conn.Do(req).Get()
+
+	if err != nil {
+		fmt.Printf("Failed to execute the request: %s\n", err)
+	} else {
+		fmt.Println(resp.Data)
+	}
+}
+
 func ExampleDeleteRequest() {
 	conn := exampleConnect(opts)
 	defer conn.Close()
@@ -316,6 +345,21 @@ func ExampleDeleteRequest() {
 	// Data [[36 test one]]
 }
 
+func ExampleDeleteRequest_spaceAndIndexNames() {
+	conn := exampleConnect(opts)
+	defer conn.Close()
+
+	req := tarantool.NewDeleteRequest(spaceName)
+	req.Index(indexName)
+	resp, err := conn.Do(req).Get()
+
+	if err != nil {
+		fmt.Printf("Failed to execute the request: %s\n", err)
+	} else {
+		fmt.Println(resp.Data)
+	}
+}
+
 func ExampleReplaceRequest() {
 	conn := exampleConnect(opts)
 	defer conn.Close()
@@ -375,6 +419,20 @@ func ExampleReplaceRequest() {
 	// Data [[13 test twelve]]
 }
 
+func ExampleReplaceRequest_spaceAndIndexNames() {
+	conn := exampleConnect(opts)
+	defer conn.Close()
+
+	req := tarantool.NewReplaceRequest(spaceName)
+	resp, err := conn.Do(req).Get()
+
+	if err != nil {
+		fmt.Printf("Failed to execute the request: %s\n", err)
+	} else {
+		fmt.Println(resp.Data)
+	}
+}
+
 func ExampleUpdateRequest() {
 	conn := exampleConnect(opts)
 	defer conn.Close()
@@ -411,6 +469,21 @@ func ExampleUpdateRequest() {
 	// response is []interface {}{[]interface {}{0x457, "hello", "world"}}
 }
 
+func ExampleUpdateRequest_spaceAndIndexNames() {
+	conn := exampleConnect(opts)
+	defer conn.Close()
+
+	req := tarantool.NewUpdateRequest(spaceName)
+	req.Index(indexName)
+	resp, err := conn.Do(req).Get()
+
+	if err != nil {
+		fmt.Printf("Failed to execute the request: %s\n", err)
+	} else {
+		fmt.Println(resp.Data)
+	}
+}
+
 func ExampleUpsertRequest() {
 	conn := exampleConnect(opts)
 	defer conn.Close()
@@ -452,6 +525,20 @@ func ExampleUpsertRequest() {
 	// response is []interface {}{[]interface {}{0x459, "first", "updated"}}
 }
 
+func ExampleUpsertRequest_spaceAndIndexNames() {
+	conn := exampleConnect(opts)
+	defer conn.Close()
+
+	req := tarantool.NewUpsertRequest(spaceName)
+	resp, err := conn.Do(req).Get()
+
+	if err != nil {
+		fmt.Printf("Failed to execute the request: %s\n", err)
+	} else {
+		fmt.Println(resp.Data)
+	}
+}
+
 func ExampleCallRequest() {
 	conn := exampleConnect(opts)
 	defer conn.Close()
@@ -634,6 +721,7 @@ func ExampleProtocolVersion() {
 	// Connector client protocol feature: IPROTO_FEATURE_ERROR_EXTENSION
 	// Connector client protocol feature: IPROTO_FEATURE_WATCHERS
 	// Connector client protocol feature: IPROTO_FEATURE_PAGINATION
+	// Connector client protocol feature: IPROTO_FEATURE_SPACE_AND_INDEX_NAMES
 	// Connector client protocol feature: IPROTO_FEATURE_WATCH_ONCE
 }
 

export_test.go

@@ -25,39 +25,80 @@ func RefImplPingBody(enc *msgpack.Encoder) error {
 
 // RefImplSelectBody is reference implementation for filling of a select
 // request's body.
-func RefImplSelectBody(enc *msgpack.Encoder, space, index, offset, limit uint32, iterator Iter,
-	key, after interface{}, fetchPos bool) error {
-	return fillSelect(enc, space, index, offset, limit, iterator, key, after, fetchPos)
+func RefImplSelectBody(enc *msgpack.Encoder, res SchemaResolver, space, index interface{},
+	offset, limit uint32, iterator Iter, key, after interface{}, fetchPos bool) error {
+	spaceEnc, err := newSpaceEncoder(res, space)
+	if err != nil {
+		return err
+	}
+	indexEnc, err := newIndexEncoder(res, index, spaceEnc.Id)
+	if err != nil {
+		return err
+	}
+	return fillSelect(enc, spaceEnc, indexEnc, offset, limit, iterator, key, after, fetchPos)
 }
 
 // RefImplInsertBody is reference implementation for filling of an insert
 // request's body.
-func RefImplInsertBody(enc *msgpack.Encoder, space uint32, tuple interface{}) error {
-	return fillInsert(enc, space, tuple)
+func RefImplInsertBody(enc *msgpack.Encoder, res SchemaResolver, space,
+	tuple interface{}) error {
+	spaceEnc, err := newSpaceEncoder(res, space)
+	if err != nil {
+		return err
+	}
+	return fillInsert(enc, spaceEnc, tuple)
 }
 
 // RefImplReplaceBody is reference implementation for filling of a replace
 // request's body.
-func RefImplReplaceBody(enc *msgpack.Encoder, space uint32, tuple interface{}) error {
-	return fillInsert(enc, space, tuple)
+func RefImplReplaceBody(enc *msgpack.Encoder, res SchemaResolver, space,
+	tuple interface{}) error {
+	spaceEnc, err := newSpaceEncoder(res, space)
+	if err != nil {
+		return err
+	}
+	return fillInsert(enc, spaceEnc, tuple)
 }
 
 // RefImplDeleteBody is reference implementation for filling of a delete
 // request's body.
-func RefImplDeleteBody(enc *msgpack.Encoder, space, index uint32, key interface{}) error {
-	return fillDelete(enc, space, index, key)
+func RefImplDeleteBody(enc *msgpack.Encoder, res SchemaResolver, space, index,
+	key interface{}) error {
+	spaceEnc, err := newSpaceEncoder(res, space)
+	if err != nil {
+		return err
+	}
+	indexEnc, err := newIndexEncoder(res, index, spaceEnc.Id)
+	if err != nil {
+		return err
+	}
+	return fillDelete(enc, spaceEnc, indexEnc, key)
 }
 
 // RefImplUpdateBody is reference implementation for filling of an update
 // request's body.
-func RefImplUpdateBody(enc *msgpack.Encoder, space, index uint32, key, ops interface{}) error {
-	return fillUpdate(enc, space, index, key, ops)
+func RefImplUpdateBody(enc *msgpack.Encoder, res SchemaResolver, space, index,
+	key, ops interface{}) error {
+	spaceEnc, err := newSpaceEncoder(res, space)
+	if err != nil {
+		return err
+	}
+	indexEnc, err := newIndexEncoder(res, index, spaceEnc.Id)
+	if err != nil {
+		return err
+	}
+	return fillUpdate(enc, spaceEnc, indexEnc, key, ops)
 }
 
 // RefImplUpsertBody is reference implementation for filling of an upsert
 // request's body.
-func RefImplUpsertBody(enc *msgpack.Encoder, space uint32, tuple, ops interface{}) error {
-	return fillUpsert(enc, space, tuple, ops)
+func RefImplUpsertBody(enc *msgpack.Encoder, res SchemaResolver, space,
+	tuple, ops interface{}) error {
+	spaceEnc, err := newSpaceEncoder(res, space)
+	if err != nil {
+		return err
+	}
+	return fillUpsert(enc, spaceEnc, tuple, ops)
 }
 
 // RefImplCallBody is reference implementation for filling of a call or call17

protocol.go

@@ -56,6 +56,7 @@ var clientProtocolInfo ProtocolInfo = ProtocolInfo{
 		iproto.IPROTO_FEATURE_ERROR_EXTENSION,
 		iproto.IPROTO_FEATURE_WATCHERS,
 		iproto.IPROTO_FEATURE_PAGINATION,
+		iproto.IPROTO_FEATURE_SPACE_AND_INDEX_NAMES,
 		iproto.IPROTO_FEATURE_WATCH_ONCE,
 	},
 }