api: add support of a batch insert request

Add support the IPROTO_INSERT_ARROW request and
message pack type MP_ARROW.

Closes #399

Author: dmyger

CHANGELOG.md

@@ -9,12 +9,13 @@ Versioning](http://semver.org/spec/v2.0.0.html) except to the first release.
 ## [Unreleased]
 
 ### Added
-- Add err log to `ConnectionPool.Add()` in case, when unable to establish 
-  connection and ctx is not canceled; 
-  also added logs for error case of `ConnectionPool.tryConnect()` calls in 
+- Add err log to `ConnectionPool.Add()` in case, when unable to establish
+  connection and ctx is not canceled;
+  also added logs for error case of `ConnectionPool.tryConnect()` calls in
   `ConnectionPool.controller()` and `ConnectionPool.reconnect()`
 - Methods that are implemented but not included in the pooler interface (#395).
 - Implemented stringer methods for pool.Role (#405).
+- Support the IPROTO_INSERT_ARROW request (#399).
 
 ### Changed
 

arrow/arrow.go

@@ -0,0 +1,56 @@
+package arrow
+
+import (
+	"fmt"
+	"reflect"
+
+	"github.com/vmihailenco/msgpack/v5"
+)
+
+// Arrow MessagePack extension type.
+const arrowExtId = 8
+
+// Arrow struct wraps a raw arrow data buffer.
+type Arrow struct {
+	data []byte
+}
+
+// MakeArrow returns a new arrow.Arrow object that contains
+// wrapped a raw arrow data buffer.
+func MakeArrow(arrow []byte) (Arrow, error) {
+	return Arrow{arrow}, nil
+}
+
+// Raw returns a []byte that contains Arrow raw data.
+func (a Arrow) Raw() []byte {
+	return a.data
+}
+
+func arrowDecoder(d *msgpack.Decoder, v reflect.Value, extLen int) error {
+	arrow := Arrow{
+		data: make([]byte, extLen),
+	}
+	n, err := d.Buffered().Read(arrow.data)
+	if err != nil {
+		return fmt.Errorf("arrowDecoder: can't read bytes on Arrow decode: %w", err)
+	}
+	if n < extLen || n != len(arrow.data) {
+		return fmt.Errorf("arrowDecoder: unexpected end of stream after %d Arrow bytes", n)
+	}
+
+	v.Set(reflect.ValueOf(arrow))
+	return nil
+}
+
+func arrowEncoder(e *msgpack.Encoder, v reflect.Value) ([]byte, error) {
+	arr, ok := v.Interface().(Arrow)
+	if !ok {
+		return []byte{}, fmt.Errorf("arrowEncoder: not an Arrow type")
+	}
+	return arr.data, nil
+}
+
+func init() {
+	msgpack.RegisterExtDecoder(arrowExtId, Arrow{}, arrowDecoder)
+	msgpack.RegisterExtEncoder(arrowExtId, Arrow{}, arrowEncoder)
+}

arrow/arrow_test.go

@@ -0,0 +1,100 @@
+package arrow_test
+
+import (
+	"bytes"
+	"encoding/hex"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+	"github.com/tarantool/go-tarantool/v2/arrow"
+	"github.com/vmihailenco/msgpack/v5"
+)
+
+var longArrow, _ = hex.DecodeString("ffffffff70000000040000009effffff0400010004000000" +
+	"b6ffffff0c00000004000000000000000100000004000000daffffff140000000202" +
+	"000004000000f0ffffff4000000001000000610000000600080004000c0010000400" +
+	"080009000c000c000c0000000400000008000a000c00040006000800ffffffff8800" +
+	"0000040000008affffff0400030010000000080000000000000000000000acffffff" +
+	"01000000000000003400000008000000000000000200000000000000000000000000" +
+	"00000000000000000000000000000800000000000000000000000100000001000000" +
+	"0000000000000000000000000a00140004000c0010000c0014000400060008000c00" +
+	"00000000000000000000")
+
+var tests = []struct {
+	name string
+	arr  []byte
+	enc  []byte
+}{
+	{
+		"abc",
+		[]byte{'a', 'b', 'c'},
+		[]byte{0xc7, 0x3, 0x8, 'a', 'b', 'c'},
+	},
+	{
+		"empty",
+		[]byte{},
+		[]byte{0xc7, 0x0, 0x8},
+	},
+	{
+		"one",
+		[]byte{1},
+		[]byte{0xd4, 0x8, 0x1},
+	},
+	{
+		"long",
+		longArrow,
+		[]byte{
+			0xc8, 0x1, 0x10, 0x8, 0xff, 0xff, 0xff, 0xff, 0x70, 0x0, 0x0, 0x0, 0x4, 0x0, 0x0,
+			0x0, 0x9e, 0xff, 0xff, 0xff, 0x4, 0x0, 0x1, 0x0, 0x4, 0x0, 0x0, 0x0, 0xb6, 0xff, 0xff,
+			0xff, 0xc, 0x0, 0x0, 0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0,
+			0x4, 0x0, 0x0, 0x0, 0xda, 0xff, 0xff, 0xff, 0x14, 0x0, 0x0, 0x0, 0x2, 0x2, 0x0, 0x0,
+			0x4, 0x0, 0x0, 0x0, 0xf0, 0xff, 0xff, 0xff, 0x40, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0,
+			0x61, 0x0, 0x0, 0x0, 0x6, 0x0, 0x8, 0x0, 0x4, 0x0, 0xc, 0x0, 0x10, 0x0, 0x4, 0x0, 0x8,
+			0x0, 0x9, 0x0, 0xc, 0x0, 0xc, 0x0, 0xc, 0x0, 0x0, 0x0, 0x4, 0x0, 0x0, 0x0, 0x8, 0x0,
+			0xa, 0x0, 0xc, 0x0, 0x4, 0x0, 0x6, 0x0, 0x8, 0x0, 0xff, 0xff, 0xff, 0xff, 0x88, 0x0,
+			0x0, 0x0, 0x4, 0x0, 0x0, 0x0, 0x8a, 0xff, 0xff, 0xff, 0x4, 0x0, 0x3, 0x0, 0x10, 0x0,
+			0x0, 0x0, 0x8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xac, 0xff, 0xff,
+			0xff, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x34, 0x0, 0x0, 0x0, 0x8, 0x0, 0x0, 0x0,
+			0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x8, 0x0,
+			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0,
+			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa, 0x0, 0x14, 0x0,
+			0x4, 0x0, 0xc, 0x0, 0x10, 0x0, 0xc, 0x0, 0x14, 0x0, 0x4, 0x0, 0x6, 0x0, 0x8, 0x0, 0xc,
+			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+		},
+	},
+}
+
+func TestEncodeArrow(t *testing.T) {
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			buf := bytes.NewBuffer([]byte{})
+			enc := msgpack.NewEncoder(buf)
+
+			arr, err := arrow.MakeArrow(tt.arr)
+			require.NoError(t, err)
+
+			err = enc.Encode(arr)
+			require.NoError(t, err)
+
+			require.Equal(t, tt.enc, buf.Bytes())
+		})
+
+	}
+}
+
+func TestDecodeArrow(t *testing.T) {
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+
+			buf := bytes.NewBuffer(tt.enc)
+			dec := msgpack.NewDecoder(buf)
+
+			var arr arrow.Arrow
+			err := dec.Decode(&arr)
+			require.NoError(t, err)
+
+			require.Equal(t, tt.arr, arr.Raw())
+		})
+	}
+}

arrow/example_test.go

@@ -0,0 +1,61 @@
+// Run Tarantool Enterprise Edition instance before example execution:
+//
+// Terminal 1:
+// $ cd arrow
+// $ TEST_TNT_WORK_DIR=$(mktemp -d -t 'tarantool.XXX') tarantool testdata/config-memcs.lua
+//
+// Terminal 2:
+// $ go test -v example_test.go
+package arrow_test
+
+import (
+	"context"
+	"encoding/hex"
+	"fmt"
+	"log"
+	"time"
+
+	"github.com/tarantool/go-tarantool/v2"
+	"github.com/tarantool/go-tarantool/v2/arrow"
+)
+
+var arrowBinData, _ = hex.DecodeString("ffffffff70000000040000009effffff0400010004000000" +
+	"b6ffffff0c00000004000000000000000100000004000000daffffff140000000202" +
+	"000004000000f0ffffff4000000001000000610000000600080004000c0010000400" +
+	"080009000c000c000c0000000400000008000a000c00040006000800ffffffff8800" +
+	"0000040000008affffff0400030010000000080000000000000000000000acffffff" +
+	"01000000000000003400000008000000000000000200000000000000000000000000" +
+	"00000000000000000000000000000800000000000000000000000100000001000000" +
+	"0000000000000000000000000a00140004000c0010000c0014000400060008000c00" +
+	"00000000000000000000")
+
+func Example() {
+	dialer := tarantool.NetDialer{
+		Address:  "127.0.0.1:3013",
+		User:     "test",
+		Password: "test",
+	}
+	ctx, cancel := context.WithTimeout(context.Background(), 500*time.Millisecond)
+	client, err := tarantool.Connect(ctx, dialer, tarantool.Opts{})
+	cancel()
+	if err != nil {
+		log.Fatalf("Failed to connect: %s", err)
+	}
+
+	arr, err := arrow.MakeArrow(arrowBinData)
+	if err != nil {
+		log.Fatalf("Failed prepare Arrow data: %s", err)
+	}
+
+	req := arrow.NewInsertRequest("testArrow", arr)
+
+	resp, err := client.Do(req).Get()
+	if err != nil {
+		log.Fatalf("Failed insert Arrow: %s", err)
+	}
+	if len(resp) > 0 {
+		log.Fatalf("Unexpected response")
+	} else {
+		fmt.Printf("Batch arrow inserted")
+	}
+}

arrow/request.go

@@ -0,0 +1,93 @@
+package arrow
+
+import (
+	"context"
+	"io"
+
+	"github.com/tarantool/go-iproto"
+	"github.com/tarantool/go-tarantool/v2"
+	"github.com/vmihailenco/msgpack/v5"
+)
+
+// INSERT Arrow request.
+//
+// FIXME: replace with iproto.IPROTO_INSERT_ARROW when iproto will released.
+// https://github.com/tarantool/go-tarantool/issues/412
+const iprotoInsertArrowType = iproto.Type(17)
+
+// The data in Arrow format.
+//
+// FIXME: replace with iproto.IPROTO_ARROW when iproto will released.
+// https://github.com/tarantool/go-tarantool/issues/412
+const iprotoArrowKey = iproto.Key(0x36)
+
+// InsertRequest helps you to create an insert request object for execution
+// by a Connection.
+type InsertRequest struct {
+	arrow Arrow
+	space interface{}
+	ctx   context.Context
+}
+
+// NewInsertRequest returns a new InsertRequest.
+func NewInsertRequest(space interface{}, arrow Arrow) *InsertRequest {
+	return &InsertRequest{
+		space: space,
+		arrow: arrow,
+	}
+}
+
+// Type returns a IPROTO_INSERT_ARROW type for the request.
+func (r *InsertRequest) Type() iproto.Type {
+	return iprotoInsertArrowType
+}
+
+// Async returns false to the request return a response.
+func (r *InsertRequest) Async() bool {
+	return false
+}
+
+// Ctx returns a context of the request.
+func (r *InsertRequest) Ctx() context.Context {
+	return r.ctx
+}
+
+// Context sets a passed context to the request.
+//
+// Pay attention that when using context with request objects,
+// the timeout option for Connection does not affect the lifetime
+// of the request. For those purposes use context.WithTimeout() as
+// the root context.
+func (r *InsertRequest) Context(ctx context.Context) *InsertRequest {
+	r.ctx = ctx
+	return r
+}
+
+// Arrow sets the arrow for insertion the insert arrow request.
+// Note: default value is nil.
+func (r *InsertRequest) Arrow(arrow Arrow) *InsertRequest {
+	r.arrow = arrow
+	return r
+}
+
+// Body fills an msgpack.Encoder with the insert arrow request body.
+func (r *InsertRequest) Body(res tarantool.SchemaResolver, enc *msgpack.Encoder) error {
+	if err := enc.EncodeMapLen(2); err != nil {
+		return err
+	}
+	if err := tarantool.EncodeSpace(res, enc, r.space); err != nil {
+		return err
+	}
+	if err := enc.EncodeUint(uint64(iprotoArrowKey)); err != nil {
+		return err
+	}
+	return enc.Encode(r.arrow)
+}
+
+// Response creates a response for the InsertRequest.
+func (r *InsertRequest) Response(
+	header tarantool.Header,
+	body io.Reader,
+) (tarantool.Response, error) {
+	return tarantool.DecodeBaseResponse(header, body)
+}