Change the code to use msgp. Add benchmarks.

.reuse/dep5

@@ -35,7 +35,7 @@ Files: format_string.go
 Copyright: SPDX-FileCopyrightText: 2022 Comcast Cable Communications Management, LLC
 License: Apache-2.0
 
-Files: messages_codec.go
+Files: messages_gen.go
 Copyright: SPDX-FileCopyrightText: 2022 Comcast Cable Communications Management, LLC
 License: Apache-2.0
 

format.go

@@ -5,12 +5,11 @@
 
 import (
 	"bytes"
+	"encoding/json"
 	"errors"
 	"fmt"
 	"io"
 	"strings"
-
-	"github.com/ugorji/go/codec"
 )
 
 //go:generate go install golang.org/x/tools/cmd/stringer@latest
@@ -25,7 +24,9 @@
 	Msgpack Format = iota
 	JSON
 	lastFormat
+)
 
+const (
 	MimeTypeMsgpack     = "application/msgpack"
 	MimeTypeJson        = "application/json"
 	MimeTypeOctetStream = "application/octet-stream"
@@ -40,29 +41,6 @@
 	return []Format{Msgpack, JSON}
 }
 
-var (
-	jsonHandle = codec.JsonHandle{
-		// TODO replace `codec.BasicHandle` since it's not meant to be used directly
-		// nolint:staticcheck
-		BasicHandle: codec.BasicHandle{
-			TypeInfos: codec.NewTypeInfos([]string{"json"}),
-		},
-		IntegerAsString: 'L',
-	}
-
-	// msgpackHandle uses the configuration required for the updated msgpack spec.
-	// this is what's required to ensure that the Payload field is encoded and decoded properly.
-	// See: http://ugorji.net/blog/go-codec-primer#format-specific-runtime-configuration
-	msgpackHandle = codec.MsgpackHandle{
-		WriteExt: true,
-		// TODO replace `codec.BasicHandle` since it's not meant to be used directly
-		// nolint:staticcheck
-		BasicHandle: codec.BasicHandle{
-			TypeInfos: codec.NewTypeInfos([]string{"json"}),
-		},
-	}
-)
-
 // ContentType returns the MIME type associated with this format
 func (f Format) ContentType() string {
 	switch f {
@@ -102,84 +80,121 @@
 	return Format(-1), fmt.Errorf("invalid WRP content type: %s", contentType)
 }
 
-// handle looks up the appropriate codec.Handle for this format constant.
-// This method panics if the format is not a valid value.
-func (f Format) handle() codec.Handle {
+// Encoder represents the underlying ugorji behavior that WRP supports
+type Encoder interface {
+	Encode(*Message) error
+}
+
+// Decoder represents the underlying ugorji behavior that WRP supports
+type Decoder interface {
+	Decode(*Message) error
+}
+
+// NewEncoder produces an Encoder using the appropriate WRP configuration for
+// the given format.
+func NewEncoder(output io.Writer, f Format) Encoder {
 	switch f {
+	case JSON:
+		return &jsonEncoder{enc: json.NewEncoder(output)}
 	case Msgpack:
-		return &msgpackHandle
+		return &msgpEncoder{stream: output}
+	}
+
+	return nil
+}
+
+// NewEncoderBytes produces an Encoder using the appropriate WRP configuration
+// for the given format.
+func NewEncoderBytes(output *[]byte, f Format) Encoder {
+	switch f {
 	case JSON:
-		return &jsonHandle
+		return &jsonEncoder{enc: json.NewEncoder(bytes.NewBuffer(*output))}
+	case Msgpack:
+		return &msgpEncoder{bits: output}
 	}
 
-	panic(fmt.Errorf("Invalid format constant: %d", f))
+	return nil
 }
 
-// EncodeListener can be implemented on any type passed to an Encoder in order
-// to get notified when an encoding happens.  This interface is useful to set
-// mandatory fields, such as message type.
-type EncodeListener interface {
-	BeforeEncode() error
+type jsonEncoder struct {
+	enc *json.Encoder
 }
 
-// Encoder represents the underlying ugorji behavior that WRP supports
-type Encoder interface {
-	Encode(interface{}) error
-	Reset(io.Writer)
-	ResetBytes(*[]byte)
+func (e *jsonEncoder) Encode(msg *Message) error {
+	return e.enc.Encode(msg)
 }
 
-// encoderDecorator wraps a ugorji Encoder and implements the wrp.Encoder interface.
-type encoderDecorator struct {
-	*codec.Encoder
+type msgpEncoder struct {
+	bits   *[]byte
+	stream io.Writer
 }
 
-// Encode checks to see if value implements EncoderTo and if it does, uses the
-// value.EncodeTo() method.  Otherwise, the value is passed as is to the decorated
-// ugorji Encoder.
-func (ed *encoderDecorator) Encode(value interface{}) error {
-	if listener, ok := value.(EncodeListener); ok {
-		if err := listener.BeforeEncode(); err != nil {
+func (e *msgpEncoder) Encode(msg *Message) error {
+	if e.stream != nil {
+		got, err := msg.MarshalMsg(nil)
+		if err != nil {
 			return err
 		}
+		_, err = e.stream.Write(got)
+		return err
 	}
 
-	return ed.Encoder.Encode(value)
+	_, err := msg.MarshalMsg(*e.bits)
+	return err
 }
 
-// Decoder represents the underlying ugorji behavior that WRP supports
-type Decoder interface {
-	Decode(interface{}) error
-	Reset(io.Reader)
-	ResetBytes([]byte)
-}
-
-// NewEncoder produces a ugorji Encoder using the appropriate WRP configuration
+// NewDecoder produces a ugorji Decoder using the appropriate WRP configuration
 // for the given format
-func NewEncoder(output io.Writer, f Format) Encoder {
-	return &encoderDecorator{
-		codec.NewEncoder(output, f.handle()),
+func NewDecoder(input io.Reader, f Format) Decoder {
+	switch f {
+	case JSON:
+		d := json.NewDecoder(input)
+		d.UseNumber()
+		return &jsonDecoder{dec: d}
+	case Msgpack:
+		return &msgpDecoder{stream: input}
 	}
+
+	return nil
 }
 
-// NewEncoderBytes produces a ugorji Encoder using the appropriate WRP configuration
+// NewDecoderBytes produces a ugorji Decoder using the appropriate WRP configuration
 // for the given format
-func NewEncoderBytes(output *[]byte, f Format) Encoder {
-	return &encoderDecorator{
-		codec.NewEncoderBytes(output, f.handle()),
+func NewDecoderBytes(input []byte, f Format) Decoder {
+	switch f {
+	case JSON:
+		return &jsonDecoder{dec: json.NewDecoder(bytes.NewReader(input))}
+	case Msgpack:
+		return &msgpDecoder{bits: input}
 	}
+
+	return nil
 }
 
-// NewDecoder produces a ugorji Decoder using the appropriate WRP configuration
-// for the given format
-func NewDecoder(input io.Reader, f Format) Decoder {
-	return codec.NewDecoder(input, f.handle())
+type jsonDecoder struct {
+	dec *json.Decoder
 }
 
-// NewDecoderBytes produces a ugorji Decoder using the appropriate WRP configuration
-// for the given format
-func NewDecoderBytes(input []byte, f Format) Decoder {
-	return codec.NewDecoderBytes(input, f.handle())
+func (d *jsonDecoder) Decode(msg *Message) error {
+	return d.dec.Decode(msg)
+}
+
+type msgpDecoder struct {
+	bits   []byte
+	stream io.Reader
+}
+
+func (d *msgpDecoder) Decode(msg *Message) error {
+	var err error
+	if d.stream != nil {
+		d.bits, err = io.ReadAll(d.stream)
+		if err != nil {
+			return err
+		}
+	}
+	_, err = msg.UnmarshalMsg(d.bits)
+
+	return err
 }
 
 // TranscodeMessage converts a WRP message of any type from one format into another,
@@ -197,7 +212,7 @@
 
 // MustEncode is a convenience function that attempts to encode a given message.  A panic
 // is raised on any error.  This function is handy for package initialization.
-func MustEncode(message interface{}, f Format) []byte {
+func MustEncode(message *Message, f Format) []byte {
 	var (
 		output  bytes.Buffer
 		encoder = NewEncoder(&output, f)

format_test.go

@@ -8,11 +8,12 @@ import (
 	"crypto/rand"
 	"encoding/hex"
 	"fmt"
-	"reflect"
 	"testing"
 
+	// "github.com/k0kubun/pp"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
+	// "zappem.net/pub/debug/xxd"
 )
 
 func testPayload(t *testing.T, payload []byte) {
@@ -25,15 +26,13 @@ func testPayload(t *testing.T, payload []byte) {
 
 		decoded Message
 
-		output  bytes.Buffer
-		encoder = NewEncoder(nil, Msgpack)
-		decoder = NewDecoder(nil, Msgpack)
+		output bytes.Buffer
 	)
 
-	encoder.Reset(&output)
+	encoder := NewEncoder(&output, Msgpack)
 	require.NoError(encoder.Encode(&original))
 
-	decoder.Reset(&output)
+	decoder := NewDecoder(&output, Msgpack)
 	require.NoError(decoder.Decode(&decoded))
 
 	// don't output the payload if it's a ridiculous size
@@ -210,14 +209,6 @@ func testFormatString(t *testing.T) {
 	assert.NotEqual(JSON.String(), Msgpack.String())
 }
 
-func testFormatHandle(t *testing.T) {
-	assert := assert.New(t)
-
-	assert.NotNil(JSON.handle())
-	assert.NotNil(Msgpack.handle())
-	assert.Panics(func() { Format(999).handle() })
-}
-
 func testFormatContentType(t *testing.T) {
 	assert := assert.New(t)
 
@@ -229,23 +220,13 @@ func testFormatContentType(t *testing.T) {
 
 func TestFormat(t *testing.T) {
 	t.Run("String", testFormatString)
-	t.Run("Handle", testFormatHandle)
 	t.Run("ContentType", testFormatContentType)
 }
 
 // testTranscodeMessage expects a nonpointer reference to a WRP message struct as the original parameter
-func testTranscodeMessage(t *testing.T, target, source Format, original interface{}) {
-	var (
-		assert  = assert.New(t)
-		require = require.New(t)
-
-		originalValue = reflect.ValueOf(original)
-		encodeValue   = reflect.New(originalValue.Type())
-		decodeValue   = reflect.New(originalValue.Type())
-	)
-
-	// encodeValue is now a pointer to a copy of the original
-	encodeValue.Elem().Set(originalValue)
+func testTranscodeMessage(t *testing.T, target, source Format, original Message) {
+	assert := assert.New(t)
+	require := require.New(t)
 
 	var (
 		sourceBuffer  bytes.Buffer
@@ -258,15 +239,16 @@ func testTranscodeMessage(t *testing.T, target, source Format, original interfac
 	)
 
 	// create the input first
-	require.NoError(sourceEncoder.Encode(encodeValue.Interface()))
+	require.NoError(sourceEncoder.Encode(&original))
 
 	// now we can attempt the transcode
 	message, err := TranscodeMessage(targetEncoder, sourceDecoder)
 	assert.NotNil(message)
 	assert.NoError(err)
 
-	assert.NoError(targetDecoder.Decode(decodeValue.Interface()))
-	assert.Equal(encodeValue.Elem().Interface(), decodeValue.Elem().Interface())
+	var got Message
+	assert.NoError(targetDecoder.Decode(&got))
+	assert.Equal(original, got)
 }
 
 func TestTranscodeMessage(t *testing.T) {
@@ -275,13 +257,12 @@ func TestTranscodeMessage(t *testing.T) {
 		expectedRequestDeliveryResponse int64 = -1234
 
 		messages = []Message{
-			Message{},
-			Message{
+			{},
+			{
 				Source:      "foobar.com",
 				Destination: "mac:FFEEDDCCBBAA",
 				Payload:     []byte("hi!"),
-			},
-			Message{
+			}, {
 				Source:                  "foobar.com",
 				Destination:             "mac:FFEEDDCCBBAA",
 				ContentType:             MimeTypeWrp,
@@ -292,13 +273,13 @@ func TestTranscodeMessage(t *testing.T) {
 				Metadata:                map[string]string{"hi": "there"},
 				Payload:                 []byte("hi!"),
 			},
-			Message{},
-			Message{
+			{},
+			{
 				Source:      "foobar.com",
 				Destination: "mac:FFEEDDCCBBAA",
 				Payload:     []byte("hi!"),
 			},
-			Message{
+			{
 				Source:                  "foobar.com",
 				Destination:             "mac:FFEEDDCCBBAA",
 				ContentType:             MimeTypeWrp,

go.mod

@@ -6,13 +6,19 @@ require (
 	github.com/davecgh/go-spew v1.1.1
 	github.com/google/uuid v1.6.0
 	github.com/stretchr/testify v1.9.0
-	github.com/ugorji/go/codec v1.2.12
+	github.com/tinylib/msgp v1.2.5
+	zappem.net/pub/debug/xxd v1.0.0
 )
 
 require (
+	github.com/k0kubun/pp v3.0.1+incompatible // indirect
 	github.com/kr/pretty v0.3.1 // indirect
+	github.com/mattn/go-colorable v0.1.14 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/philhofer/fwd v1.1.3-0.20240916144458-20a13a1f6b7c // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/rogpeppe/go-internal v1.10.0 // indirect
+	golang.org/x/sys v0.29.0 // indirect
 	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )