update serializing

This commit is contained in:
matst80
2024-11-08 14:11:26 +01:00
parent 4cc41bcec6
commit a2fd5ad62f
5 changed files with 123 additions and 297 deletions

View File

@@ -1,98 +1,16 @@
package main
import (
"bufio"
"bytes"
"encoding/binary"
"encoding/json"
"fmt"
"io"
"log"
"net/http"
"time"
"git.tornberg.me/go-cart-actor/git.tornberg.me/go-cart-actor/messages"
"github.com/matst80/slask-finder/pkg/index"
"google.golang.org/protobuf/proto"
)
type StorableMessage interface {
GetBytes() ([]byte, error)
FromReader(io.Reader, *Message) error
}
type Message struct {
Type uint64
TimeStamp *int64
Content interface{}
}
func (m Message) GetBytes() ([]byte, error) {
var b bytes.Buffer
var err error
w := bufio.NewWriter(&b)
bytes := make([]byte, 8)
binary.LittleEndian.PutUint64(bytes, m.Type)
w.Write(bytes)
binary.LittleEndian.PutUint64(bytes, uint64(*m.TimeStamp))
w.Write(bytes)
var messageBytes []byte
if m.Type == 1 {
messageBytes, err = proto.Marshal(m.Content.(*messages.AddRequest))
} else if m.Type == 2 {
messageBytes, err = proto.Marshal(m.Content.(*messages.AddItem))
} else {
return nil, fmt.Errorf("unknown message type")
}
if err != nil {
return nil, err
}
binary.LittleEndian.PutUint64(bytes, uint64(len(messageBytes)))
w.Write(bytes)
w.Write(messageBytes)
w.Flush()
return b.Bytes(), nil
}
func (i Message) FromReader(reader io.Reader, m *Message) error {
bytes := make([]byte, 8)
if _, err := reader.Read(bytes); err != nil {
return err
}
m.Type = binary.LittleEndian.Uint64(bytes)
if _, err := reader.Read(bytes); err != nil {
return err
}
timestamp := int64(binary.LittleEndian.Uint64(bytes))
m.TimeStamp = &timestamp
if _, err := reader.Read(bytes); err != nil {
return err
}
messageBytes := make([]byte, binary.LittleEndian.Uint64(bytes))
if _, err := reader.Read(messageBytes); err != nil {
return err
}
var err error
if m.Type == 1 {
msg := &messages.AddRequest{}
err = proto.Unmarshal(messageBytes, msg)
m.Content = msg
} else if m.Type == 2 {
msg := &messages.AddItem{}
err = proto.Unmarshal(messageBytes, msg)
m.Content = msg
} else {
return fmt.Errorf("unknown message type")
}
if err != nil {
return err
}
return nil
}
type CartItem struct {
Sku string `json:"sku"`
Name string `json:"name"`
@@ -191,14 +109,14 @@ func (c *CartGrain) HandleMessage(message *Message, isReplay bool, reply *CartGr
}
var err error
switch message.Type {
case 1:
case AddRequestType:
msg, ok := message.Content.(*messages.AddRequest)
if !ok {
err = fmt.Errorf("invalid content type")
} else {
return c.AddItem(msg.Sku, reply)
}
case 2:
case AddItemType:
msg, ok := message.Content.(*messages.AddItem)
if !ok {
err = fmt.Errorf("invalid content type")

View File

@@ -1,212 +0,0 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.35.1
// protoc v5.28.2
// source: add.proto
package go_cart_actor
import (
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
reflect "reflect"
sync "sync"
)
const (
// Verify that this generated code is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
// Verify that runtime/protoimpl is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
type AddRequest struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
Sku string `protobuf:"bytes,2,opt,name=Sku,proto3" json:"Sku,omitempty"`
}
func (x *AddRequest) Reset() {
*x = AddRequest{}
mi := &file_add_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
func (x *AddRequest) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*AddRequest) ProtoMessage() {}
func (x *AddRequest) ProtoReflect() protoreflect.Message {
mi := &file_add_proto_msgTypes[0]
if x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use AddRequest.ProtoReflect.Descriptor instead.
func (*AddRequest) Descriptor() ([]byte, []int) {
return file_add_proto_rawDescGZIP(), []int{0}
}
func (x *AddRequest) GetSku() string {
if x != nil {
return x.Sku
}
return ""
}
type AddItem struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
Quantity int32 `protobuf:"varint,2,opt,name=Quantity,proto3" json:"Quantity,omitempty"`
Price int64 `protobuf:"varint,3,opt,name=Price,proto3" json:"Price,omitempty"`
Sku string `protobuf:"bytes,4,opt,name=Sku,proto3" json:"Sku,omitempty"`
Name string `protobuf:"bytes,5,opt,name=Name,proto3" json:"Name,omitempty"`
Image string `protobuf:"bytes,6,opt,name=Image,proto3" json:"Image,omitempty"`
}
func (x *AddItem) Reset() {
*x = AddItem{}
mi := &file_add_proto_msgTypes[1]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
func (x *AddItem) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*AddItem) ProtoMessage() {}
func (x *AddItem) ProtoReflect() protoreflect.Message {
mi := &file_add_proto_msgTypes[1]
if x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use AddItem.ProtoReflect.Descriptor instead.
func (*AddItem) Descriptor() ([]byte, []int) {
return file_add_proto_rawDescGZIP(), []int{1}
}
func (x *AddItem) GetQuantity() int32 {
if x != nil {
return x.Quantity
}
return 0
}
func (x *AddItem) GetPrice() int64 {
if x != nil {
return x.Price
}
return 0
}
func (x *AddItem) GetSku() string {
if x != nil {
return x.Sku
}
return ""
}
func (x *AddItem) GetName() string {
if x != nil {
return x.Name
}
return ""
}
func (x *AddItem) GetImage() string {
if x != nil {
return x.Image
}
return ""
}
var File_add_proto protoreflect.FileDescriptor
var file_add_proto_rawDesc = []byte{
0x0a, 0x09, 0x61, 0x64, 0x64, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x08, 0x6d, 0x65, 0x73,
0x73, 0x61, 0x67, 0x65, 0x73, 0x22, 0x1e, 0x0a, 0x0a, 0x41, 0x64, 0x64, 0x52, 0x65, 0x71, 0x75,
0x65, 0x73, 0x74, 0x12, 0x10, 0x0a, 0x03, 0x53, 0x6b, 0x75, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09,
0x52, 0x03, 0x53, 0x6b, 0x75, 0x22, 0x77, 0x0a, 0x07, 0x41, 0x64, 0x64, 0x49, 0x74, 0x65, 0x6d,
0x12, 0x1a, 0x0a, 0x08, 0x51, 0x75, 0x61, 0x6e, 0x74, 0x69, 0x74, 0x79, 0x18, 0x02, 0x20, 0x01,
0x28, 0x05, 0x52, 0x08, 0x51, 0x75, 0x61, 0x6e, 0x74, 0x69, 0x74, 0x79, 0x12, 0x14, 0x0a, 0x05,
0x50, 0x72, 0x69, 0x63, 0x65, 0x18, 0x03, 0x20, 0x01, 0x28, 0x03, 0x52, 0x05, 0x50, 0x72, 0x69,
0x63, 0x65, 0x12, 0x10, 0x0a, 0x03, 0x53, 0x6b, 0x75, 0x18, 0x04, 0x20, 0x01, 0x28, 0x09, 0x52,
0x03, 0x53, 0x6b, 0x75, 0x12, 0x12, 0x0a, 0x04, 0x4e, 0x61, 0x6d, 0x65, 0x18, 0x05, 0x20, 0x01,
0x28, 0x09, 0x52, 0x04, 0x4e, 0x61, 0x6d, 0x65, 0x12, 0x14, 0x0a, 0x05, 0x49, 0x6d, 0x61, 0x67,
0x65, 0x18, 0x06, 0x20, 0x01, 0x28, 0x09, 0x52, 0x05, 0x49, 0x6d, 0x61, 0x67, 0x65, 0x42, 0x1f,
0x5a, 0x1d, 0x67, 0x69, 0x74, 0x2e, 0x74, 0x6f, 0x72, 0x6e, 0x62, 0x65, 0x72, 0x67, 0x2e, 0x6d,
0x65, 0x2f, 0x67, 0x6f, 0x2d, 0x63, 0x61, 0x72, 0x74, 0x2d, 0x61, 0x63, 0x74, 0x6f, 0x72, 0x62,
0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
}
var (
file_add_proto_rawDescOnce sync.Once
file_add_proto_rawDescData = file_add_proto_rawDesc
)
func file_add_proto_rawDescGZIP() []byte {
file_add_proto_rawDescOnce.Do(func() {
file_add_proto_rawDescData = protoimpl.X.CompressGZIP(file_add_proto_rawDescData)
})
return file_add_proto_rawDescData
}
var file_add_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
var file_add_proto_goTypes = []any{
(*AddRequest)(nil), // 0: messages.AddRequest
(*AddItem)(nil), // 1: messages.AddItem
}
var file_add_proto_depIdxs = []int32{
0, // [0:0] is the sub-list for method output_type
0, // [0:0] is the sub-list for method input_type
0, // [0:0] is the sub-list for extension type_name
0, // [0:0] is the sub-list for extension extendee
0, // [0:0] is the sub-list for field type_name
}
func init() { file_add_proto_init() }
func file_add_proto_init() {
if File_add_proto != nil {
return
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_add_proto_rawDesc,
NumEnums: 0,
NumMessages: 2,
NumExtensions: 0,
NumServices: 0,
},
GoTypes: file_add_proto_goTypes,
DependencyIndexes: file_add_proto_depIdxs,
MessageInfos: file_add_proto_msgTypes,
}.Build()
File_add_proto = out.File
file_add_proto_rawDesc = nil
file_add_proto_goTypes = nil
file_add_proto_depIdxs = nil
}

View File

@@ -58,7 +58,7 @@ func (a *App) HandleAddSku(w http.ResponseWriter, r *http.Request) {
return
}
message := &Message{
Type: 1,
Type: AddRequestType,
Content: &messages.AddRequest{Sku: sku},
}
var reply CartGrain

6
message-types.go Normal file
View File

@@ -0,0 +1,6 @@
package main
const (
AddRequestType = 1
AddItemType = 2
)

114
message.go Normal file
View File

@@ -0,0 +1,114 @@
package main
import (
"bufio"
"bytes"
"encoding/binary"
"fmt"
"io"
"git.tornberg.me/go-cart-actor/git.tornberg.me/go-cart-actor/messages"
"google.golang.org/protobuf/proto"
)
type StorableMessage interface {
GetBytes() ([]byte, error)
FromReader(io.Reader, *Message) error
}
type Message struct {
Type uint64
TimeStamp *int64
Content interface{}
}
type MessageWriter struct {
writer io.Writer
}
func NewMessageWriter(b *bytes.Buffer) *MessageWriter {
return &MessageWriter{writer: bufio.NewWriter(b)}
}
func (w *MessageWriter) WriteUint64(value uint64) error {
bytes := make([]byte, 8)
binary.LittleEndian.PutUint64(bytes, value)
_, err := w.writer.Write(bytes)
return err
}
func (w *MessageWriter) WriteInt64(value int64) error {
return w.WriteUint64(uint64(value))
}
func (w *MessageWriter) WriteMessage(m *Message) error {
if err := w.WriteUint64(m.Type); err != nil {
return err
}
if err := w.WriteInt64(*m.TimeStamp); err != nil {
return err
}
var messageBytes []byte
var err error
if m.Type == AddRequestType {
messageBytes, err = proto.Marshal(m.Content.(*messages.AddRequest))
} else if m.Type == AddItemType {
messageBytes, err = proto.Marshal(m.Content.(*messages.AddItem))
} else {
return fmt.Errorf("unknown message type")
}
if err != nil {
return err
}
if err := w.WriteUint64(uint64(len(messageBytes))); err != nil {
return err
}
_, err = w.writer.Write(messageBytes)
return err
}
func (m Message) GetBytes() ([]byte, error) {
var b bytes.Buffer
mw := NewMessageWriter(&b)
err := mw.WriteMessage(&m)
return b.Bytes(), err
}
func (i Message) FromReader(reader io.Reader, m *Message) error {
bytes := make([]byte, 8)
if _, err := reader.Read(bytes); err != nil {
return err
}
m.Type = binary.LittleEndian.Uint64(bytes)
if _, err := reader.Read(bytes); err != nil {
return err
}
timestamp := int64(binary.LittleEndian.Uint64(bytes))
m.TimeStamp = &timestamp
if _, err := reader.Read(bytes); err != nil {
return err
}
messageBytes := make([]byte, binary.LittleEndian.Uint64(bytes))
if _, err := reader.Read(messageBytes); err != nil {
return err
}
var err error
if m.Type == AddRequestType {
msg := &messages.AddRequest{}
err = proto.Unmarshal(messageBytes, msg)
m.Content = msg
} else if m.Type == AddItemType {
msg := &messages.AddItem{}
err = proto.Unmarshal(messageBytes, msg)
m.Content = msg
} else {
return fmt.Errorf("unknown message type")
}
if err != nil {
return err
}
return nil
}