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move implementations to external repos (#17)

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Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
This commit is contained in:
Василий Толстов
2020-08-25 13:44:41 +03:00
committed by GitHub
parent c4a303190a
commit 0f4b1435d9
238 changed files with 151 additions and 37364 deletions
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30
server/grpc/README.md
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@@ -1,30 +0,0 @@
# GRPC Server
The grpc server is a [micro.Server](https://godoc.org/github.com/micro/go-micro/server#Server) compatible server.
## Overview
The server makes use of the [google.golang.org/grpc](google.golang.org/grpc) framework for the underlying server
but continues to use micro handler signatures and protoc-gen-micro generated code.
## Usage
Specify the server to your micro service
```go
import (
"github.com/micro/go-micro"
"github.com/micro/go-plugins/server/grpc"
)
func main() {
service := micro.NewService(
// This needs to be first as it replaces the underlying server
// which causes any configuration set before it
// to be discarded
micro.Server(grpc.NewServer()),
micro.Name("greeter"),
)
}
```
**NOTE**: Setting the gRPC server and/or client causes the underlying the server/client to be replaced which causes any previous configuration set on that server/client to be discarded. It is therefore recommended to set gRPC server/client before any other configuration

190
server/grpc/codec.go
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@@ -1,190 +0,0 @@
package grpc
import (
"encoding/json"
"strings"
"github.com/unistack-org/micro/v3/codec"
"github.com/unistack-org/micro/v3/codec/bytes"
"google.golang.org/grpc"
"google.golang.org/grpc/encoding"
"google.golang.org/grpc/metadata"
jsonpb "google.golang.org/protobuf/encoding/protojson"
"google.golang.org/protobuf/proto"
)
type jsonCodec struct{}
type bytesCodec struct{}
type protoCodec struct{}
type wrapCodec struct{ encoding.Codec }
var jsonpbMarshaler = jsonpb.MarshalOptions{
UseEnumNumbers: false,
EmitUnpopulated: false,
UseProtoNames: true,
AllowPartial: false,
}
var jsonpbUnmarshaler = jsonpb.UnmarshalOptions{
DiscardUnknown: false,
AllowPartial: false,
}
var (
defaultGRPCCodecs = map[string]encoding.Codec{
"application/json": jsonCodec{},
"application/proto": protoCodec{},
"application/protobuf": protoCodec{},
"application/octet-stream": protoCodec{},
"application/grpc": protoCodec{},
"application/grpc+json": jsonCodec{},
"application/grpc+proto": protoCodec{},
"application/grpc+bytes": bytesCodec{},
}
)
func (w wrapCodec) String() string {
return w.Codec.Name()
}
func (w wrapCodec) Marshal(v interface{}) ([]byte, error) {
b, ok := v.(*bytes.Frame)
if ok {
return b.Data, nil
}
return w.Codec.Marshal(v)
}
func (w wrapCodec) Unmarshal(data []byte, v interface{}) error {
b, ok := v.(*bytes.Frame)
if ok {
b.Data = data
return nil
}
if v == nil {
return nil
}
return w.Codec.Unmarshal(data, v)
}
func (protoCodec) Marshal(v interface{}) ([]byte, error) {
m, ok := v.(proto.Message)
if !ok {
return nil, codec.ErrInvalidMessage
}
return proto.Marshal(m)
}
func (protoCodec) Unmarshal(data []byte, v interface{}) error {
m, ok := v.(proto.Message)
if !ok {
return codec.ErrInvalidMessage
}
return proto.Unmarshal(data, m)
}
func (protoCodec) Name() string {
return "proto"
}
func (jsonCodec) Marshal(v interface{}) ([]byte, error) {
if pb, ok := v.(proto.Message); ok {
s, err := jsonpbMarshaler.Marshal(pb)
return s, err
}
return json.Marshal(v)
}
func (jsonCodec) Unmarshal(data []byte, v interface{}) error {
if len(data) == 0 {
return nil
}
if pb, ok := v.(proto.Message); ok {
return jsonpbUnmarshaler.Unmarshal(data, pb)
}
return json.Unmarshal(data, v)
}
func (jsonCodec) Name() string {
return "json"
}
func (bytesCodec) Marshal(v interface{}) ([]byte, error) {
b, ok := v.(*[]byte)
if !ok {
return nil, codec.ErrInvalidMessage
}
return *b, nil
}
func (bytesCodec) Unmarshal(data []byte, v interface{}) error {
b, ok := v.(*[]byte)
if !ok {
return codec.ErrInvalidMessage
}
*b = data
return nil
}
func (bytesCodec) Name() string {
return "bytes"
}
type grpcCodec struct {
grpc.ServerStream
// headers
id string
target string
method string
endpoint string
c encoding.Codec
}
func (g *grpcCodec) ReadHeader(m *codec.Message, mt codec.MessageType) error {
md, _ := metadata.FromIncomingContext(g.ServerStream.Context())
if m == nil {
m = new(codec.Message)
}
if m.Header == nil {
m.Header = make(map[string]string, len(md))
}
for k, v := range md {
m.Header[k] = strings.Join(v, ",")
}
m.Id = g.id
m.Target = g.target
m.Method = g.method
m.Endpoint = g.endpoint
return nil
}
func (g *grpcCodec) ReadBody(v interface{}) error {
// caller has requested a frame
if f, ok := v.(*bytes.Frame); ok {
return g.ServerStream.RecvMsg(f)
}
return g.ServerStream.RecvMsg(v)
}
func (g *grpcCodec) Write(m *codec.Message, v interface{}) error {
// if we don't have a body
if v != nil {
b, err := g.c.Marshal(v)
if err != nil {
return err
}
m.Body = b
}
// write the body using the framing codec
return g.ServerStream.SendMsg(&bytes.Frame{Data: m.Body})
}
func (g *grpcCodec) Close() error {
return nil
}
func (g *grpcCodec) String() string {
return "grpc"
}

16
server/grpc/context.go
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@@ -1,16 +0,0 @@
package grpc
import (
"context"
"github.com/unistack-org/micro/v3/server"
)
func setServerOption(k, v interface{}) server.Option {
return func(o *server.Options) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}

33
server/grpc/error.go
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@@ -1,33 +0,0 @@
package grpc
import (
"net/http"
"github.com/unistack-org/micro/v3/errors"
"google.golang.org/grpc/codes"
)
var errMapping = map[int32]codes.Code{
http.StatusOK: codes.OK,
http.StatusBadRequest: codes.InvalidArgument,
http.StatusRequestTimeout: codes.DeadlineExceeded,
http.StatusNotFound: codes.NotFound,
http.StatusConflict: codes.AlreadyExists,
http.StatusForbidden: codes.PermissionDenied,
http.StatusUnauthorized: codes.Unauthenticated,
http.StatusPreconditionFailed: codes.FailedPrecondition,
http.StatusNotImplemented: codes.Unimplemented,
http.StatusInternalServerError: codes.Internal,
http.StatusServiceUnavailable: codes.Unavailable,
}
func microError(err *errors.Error) codes.Code {
if err == nil {
return codes.OK
}
if code, ok := errMapping[err.Code]; ok {
return code
}
return codes.Unknown
}

122
server/grpc/extractor.go
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@@ -1,122 +0,0 @@
package grpc
import (
"fmt"
"reflect"
"strings"
"github.com/unistack-org/micro/v3/registry"
)
func extractValue(v reflect.Type, d int) *registry.Value {
if d == 3 {
return nil
}
if v == nil {
return nil
}
if v.Kind() == reflect.Ptr {
v = v.Elem()
}
arg := &registry.Value{
Name: v.Name(),
Type: v.Name(),
}
switch v.Kind() {
case reflect.Struct:
for i := 0; i < v.NumField(); i++ {
f := v.Field(i)
val := extractValue(f.Type, d+1)
if val == nil {
continue
}
// if we can find a json tag use it
if tags := f.Tag.Get("json"); len(tags) > 0 {
parts := strings.Split(tags, ",")
if parts[0] == "-" || parts[0] == "omitempty" {
continue
}
val.Name = parts[0]
}
// if there's no name default it
if len(val.Name) == 0 {
val.Name = v.Field(i).Name
}
arg.Values = append(arg.Values, val)
}
case reflect.Slice:
p := v.Elem()
if p.Kind() == reflect.Ptr {
p = p.Elem()
}
arg.Type = "[]" + p.Name()
}
return arg
}
func extractEndpoint(method reflect.Method) *registry.Endpoint {
if method.PkgPath != "" {
return nil
}
var rspType, reqType reflect.Type
var stream bool
mt := method.Type
switch mt.NumIn() {
case 3:
reqType = mt.In(1)
rspType = mt.In(2)
case 4:
reqType = mt.In(2)
rspType = mt.In(3)
default:
return nil
}
// are we dealing with a stream?
switch rspType.Kind() {
case reflect.Func, reflect.Interface:
stream = true
}
request := extractValue(reqType, 0)
response := extractValue(rspType, 0)
ep := &registry.Endpoint{
Name: method.Name,
Request: request,
Response: response,
Metadata: make(map[string]string),
}
if stream {
ep.Metadata = map[string]string{
"stream": fmt.Sprintf("%v", stream),
}
}
return ep
}
func extractSubValue(typ reflect.Type) *registry.Value {
var reqType reflect.Type
switch typ.NumIn() {
case 1:
reqType = typ.In(0)
case 2:
reqType = typ.In(1)
case 3:
reqType = typ.In(2)
default:
return nil
}
return extractValue(reqType, 0)
}

65
server/grpc/extractor_test.go
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@@ -1,65 +0,0 @@
package grpc
import (
"context"
"reflect"
"testing"
"github.com/unistack-org/micro/v3/registry"
)
type testHandler struct{}
type testRequest struct{}
type testResponse struct{}
func (t *testHandler) Test(ctx context.Context, req *testRequest, rsp *testResponse) error {
return nil
}
func TestExtractEndpoint(t *testing.T) {
handler := &testHandler{}
typ := reflect.TypeOf(handler)
var endpoints []*registry.Endpoint
for m := 0; m < typ.NumMethod(); m++ {
if e := extractEndpoint(typ.Method(m)); e != nil {
endpoints = append(endpoints, e)
}
}
if i := len(endpoints); i != 1 {
t.Errorf("Expected 1 endpoint, have %d", i)
}
if endpoints[0].Name != "Test" {
t.Errorf("Expected handler Test, got %s", endpoints[0].Name)
}
if endpoints[0].Request == nil {
t.Error("Expected non nil request")
}
if endpoints[0].Response == nil {
t.Error("Expected non nil request")
}
if endpoints[0].Request.Name != "testRequest" {
t.Errorf("Expected testRequest got %s", endpoints[0].Request.Name)
}
if endpoints[0].Response.Name != "testResponse" {
t.Errorf("Expected testResponse got %s", endpoints[0].Response.Name)
}
if endpoints[0].Request.Type != "testRequest" {
t.Errorf("Expected testRequest type got %s", endpoints[0].Request.Type)
}
if endpoints[0].Response.Type != "testResponse" {
t.Errorf("Expected testResponse type got %s", endpoints[0].Response.Type)
}
}

1047
server/grpc/grpc.go
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File diff suppressed because it is too large Load Diff

303
server/grpc/grpc_test.go
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@@ -1,303 +0,0 @@
package grpc_test
import (
"context"
"fmt"
"testing"
bmemory "github.com/unistack-org/micro/v3/broker/memory"
"github.com/unistack-org/micro/v3/client"
gcli "github.com/unistack-org/micro/v3/client/grpc"
"github.com/unistack-org/micro/v3/errors"
pberr "github.com/unistack-org/micro/v3/errors/proto"
rmemory "github.com/unistack-org/micro/v3/registry/memory"
"github.com/unistack-org/micro/v3/router"
rtreg "github.com/unistack-org/micro/v3/router/registry"
"github.com/unistack-org/micro/v3/server"
gsrv "github.com/unistack-org/micro/v3/server/grpc"
pb "github.com/unistack-org/micro/v3/server/grpc/proto"
tgrpc "github.com/unistack-org/micro/v3/transport/grpc"
"google.golang.org/grpc"
"google.golang.org/grpc/status"
)
// server is used to implement helloworld.GreeterServer.
type testServer struct {
msgCount int
}
func (s *testServer) Handle(ctx context.Context, msg *pb.Request) error {
s.msgCount++
return nil
}
func (s *testServer) HandleError(ctx context.Context, msg *pb.Request) error {
return fmt.Errorf("fake")
}
// TestHello implements helloworld.GreeterServer
func (s *testServer) CallPcre(ctx context.Context, req *pb.Request, rsp *pb.Response) error {
if req.Name == "Error" {
return &errors.Error{Id: "1", Code: 99, Detail: "detail"}
}
rsp.Msg = "Hello " + req.Name
return nil
}
// TestHello implements helloworld.GreeterServer
func (s *testServer) CallPcreInvalid(ctx context.Context, req *pb.Request, rsp *pb.Response) error {
if req.Name == "Error" {
return &errors.Error{Id: "1", Code: 99, Detail: "detail"}
}
rsp.Msg = "Hello " + req.Name
return nil
}
// TestHello implements helloworld.GreeterServer
func (s *testServer) Call(ctx context.Context, req *pb.Request, rsp *pb.Response) error {
if req.Name == "Error" {
return &errors.Error{Id: "1", Code: 99, Detail: "detail"}
}
if req.Name == "Panic" {
// make it panic
panic("handler panic")
}
rsp.Msg = "Hello " + req.Name
return nil
}
/*
func BenchmarkServer(b *testing.B) {
r := rmemory.NewRegistry()
br := bmemory.NewBroker()
tr := tgrpc.NewTransport()
s := gsrv.NewServer(
server.Broker(br),
server.Name("foo"),
server.Registry(r),
server.Transport(tr),
)
c := gcli.NewClient(
client.Registry(r),
client.Broker(br),
client.Transport(tr),
)
ctx := context.TODO()
h := &testServer{}
pb.RegisterTestHandler(s, h)
if err := s.Start(); err != nil {
b.Fatalf("failed to start: %v", err)
}
// check registration
services, err := r.GetService("foo")
if err != nil || len(services) == 0 {
b.Fatalf("failed to get service: %v # %d", err, len(services))
}
defer func() {
if err := s.Stop(); err != nil {
b.Fatalf("failed to stop: %v", err)
}
}()
b.ResetTimer()
for i := 0; i < b.N; i++ {
c.Call()
}
}
*/
func TestGRPCServer(t *testing.T) {
r := rmemory.NewRegistry()
b := bmemory.NewBroker()
tr := tgrpc.NewTransport()
rtr := rtreg.NewRouter(router.Registry(r))
s := gsrv.NewServer(
server.Broker(b),
server.Name("foo"),
server.Registry(r),
server.Transport(tr),
)
c := gcli.NewClient(
client.Router(rtr),
client.Broker(b),
client.Transport(tr),
)
ctx := context.TODO()
h := &testServer{}
pb.RegisterTestHandler(s, h)
if err := s.Subscribe(s.NewSubscriber("test_topic", h.Handle)); err != nil {
t.Fatal(err)
}
if err := s.Start(); err != nil {
t.Fatalf("failed to start: %v", err)
}
// check registration
services, err := r.GetService("foo")
if err != nil || len(services) == 0 {
t.Fatalf("failed to get service: %v # %d", err, len(services))
}
defer func() {
if err := s.Stop(); err != nil {
t.Fatalf("failed to stop: %v", err)
}
}()
cnt := 4
for i := 0; i < cnt; i++ {
msg := c.NewMessage("test_topic", &pb.Request{Name: fmt.Sprintf("msg %d", i)})
if err = c.Publish(ctx, msg); err != nil {
t.Fatal(err)
}
}
if h.msgCount != cnt {
t.Fatalf("pub/sub not work, or invalid message count %d", h.msgCount)
}
cc, err := grpc.Dial(s.Options().Address, grpc.WithInsecure())
if err != nil {
t.Fatalf("failed to dial server: %v", err)
}
testMethods := []string{"/test.Test/Call", "/go.micro.test.Test/Call"}
for _, method := range testMethods {
rsp := pb.Response{}
if err := cc.Invoke(context.Background(), method, &pb.Request{Name: "John"}, &rsp); err != nil {
t.Fatalf("error calling server: %v", err)
}
if rsp.Msg != "Hello John" {
t.Fatalf("Got unexpected response %v", rsp.Msg)
}
}
// Test grpc error
rsp := pb.Response{}
if err := cc.Invoke(context.Background(), "/test.Test/Call", &pb.Request{Name: "Error"}, &rsp); err != nil {
st, ok := status.FromError(err)
if !ok {
t.Fatalf("invalid error received %#+v\n", err)
}
verr, ok := st.Details()[0].(*pberr.Error)
if !ok {
t.Fatalf("invalid error received %#+v\n", st.Details()[0])
}
if verr.Code != 99 && verr.Id != "1" && verr.Detail != "detail" {
t.Fatalf("invalid error received %#+v\n", verr)
}
}
}
// TestGRPCServerWithPanicWrapper test grpc server with panic wrapper
// gRPC server should not crash when wrapper crashed
func TestGRPCServerWithPanicWrapper(t *testing.T) {
r := rmemory.NewRegistry()
b := bmemory.NewBroker()
tr := tgrpc.NewTransport()
s := gsrv.NewServer(
server.Broker(b),
server.Name("foo"),
server.Registry(r),
server.Transport(tr),
server.WrapHandler(func(hf server.HandlerFunc) server.HandlerFunc {
return func(ctx context.Context, req server.Request, rsp interface{}) error {
// make it panic
panic("wrapper panic")
}
}),
)
h := &testServer{}
pb.RegisterTestHandler(s, h)
if err := s.Start(); err != nil {
t.Fatalf("failed to start: %v", err)
}
// check registration
services, err := r.GetService("foo")
if err != nil || len(services) == 0 {
t.Fatalf("failed to get service: %v # %d", err, len(services))
}
defer func() {
if err := s.Stop(); err != nil {
t.Fatalf("failed to stop: %v", err)
}
}()
cc, err := grpc.Dial(s.Options().Address, grpc.WithInsecure())
if err != nil {
t.Fatalf("failed to dial server: %v", err)
}
rsp := pb.Response{}
if err := cc.Invoke(context.Background(), "/test.Test/Call", &pb.Request{Name: "John"}, &rsp); err == nil {
t.Fatal("this must return error, as wrapper should be panic")
}
// both wrapper and handler should panic
rsp = pb.Response{}
if err := cc.Invoke(context.Background(), "/test.Test/Call", &pb.Request{Name: "Panic"}, &rsp); err == nil {
t.Fatal("this must return error, as wrapper and handler should be panic")
}
}
// TestGRPCServerWithPanicWrapper test grpc server with panic handler
// gRPC server should not crash when handler crashed
func TestGRPCServerWithPanicHandler(t *testing.T) {
r := rmemory.NewRegistry()
b := bmemory.NewBroker()
tr := tgrpc.NewTransport()
s := gsrv.NewServer(
server.Broker(b),
server.Name("foo"),
server.Registry(r),
server.Transport(tr),
)
h := &testServer{}
pb.RegisterTestHandler(s, h)
if err := s.Start(); err != nil {
t.Fatalf("failed to start: %v", err)
}
// check registration
services, err := r.GetService("foo")
if err != nil || len(services) == 0 {
t.Fatalf("failed to get service: %v # %d", err, len(services))
}
defer func() {
if err := s.Stop(); err != nil {
t.Fatalf("failed to stop: %v", err)
}
}()
cc, err := grpc.Dial(s.Options().Address, grpc.WithInsecure())
if err != nil {
t.Fatalf("failed to dial server: %v", err)
}
rsp := pb.Response{}
if err := cc.Invoke(context.Background(), "/test.Test/Call", &pb.Request{Name: "Panic"}, &rsp); err == nil {
t.Fatal("this must return error, as handler should be panic")
}
}

66
server/grpc/handler.go
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@@ -1,66 +0,0 @@
package grpc
import (
"reflect"
"github.com/unistack-org/micro/v3/registry"
"github.com/unistack-org/micro/v3/server"
)
type rpcHandler struct {
name string
handler interface{}
endpoints []*registry.Endpoint
opts server.HandlerOptions
}
func newRpcHandler(handler interface{}, opts ...server.HandlerOption) server.Handler {
options := server.HandlerOptions{
Metadata: make(map[string]map[string]string),
}
for _, o := range opts {
o(&options)
}
typ := reflect.TypeOf(handler)
hdlr := reflect.ValueOf(handler)
name := reflect.Indirect(hdlr).Type().Name()
var endpoints []*registry.Endpoint
for m := 0; m < typ.NumMethod(); m++ {
if e := extractEndpoint(typ.Method(m)); e != nil {
e.Name = name + "." + e.Name
for k, v := range options.Metadata[e.Name] {
e.Metadata[k] = v
}
endpoints = append(endpoints, e)
}
}
return &rpcHandler{
name: name,
handler: handler,
endpoints: endpoints,
opts: options,
}
}
func (r *rpcHandler) Name() string {
return r.name
}
func (r *rpcHandler) Handler() interface{} {
return r.handler
}
func (r *rpcHandler) Endpoints() []*registry.Endpoint {
return r.endpoints
}
func (r *rpcHandler) Options() server.HandlerOptions {
return r.opts
}

85
server/grpc/options.go
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@@ -1,85 +0,0 @@
package grpc
import (
"context"
"crypto/tls"
"net"
"github.com/unistack-org/micro/v3/broker/http"
"github.com/unistack-org/micro/v3/codec"
"github.com/unistack-org/micro/v3/registry/mdns"
"github.com/unistack-org/micro/v3/server"
"google.golang.org/grpc"
"google.golang.org/grpc/encoding"
)
type codecsKey struct{}
type grpcOptions struct{}
type netListener struct{}
type maxMsgSizeKey struct{}
type maxConnKey struct{}
type tlsAuth struct{}
// gRPC Codec to be used to encode/decode requests for a given content type
func Codec(contentType string, c encoding.Codec) server.Option {
return func(o *server.Options) {
codecs := make(map[string]encoding.Codec)
if o.Context == nil {
o.Context = context.Background()
}
if v, ok := o.Context.Value(codecsKey{}).(map[string]encoding.Codec); ok && v != nil {
codecs = v
}
codecs[contentType] = c
o.Context = context.WithValue(o.Context, codecsKey{}, codecs)
}
}
// AuthTLS should be used to setup a secure authentication using TLS
func AuthTLS(t *tls.Config) server.Option {
return setServerOption(tlsAuth{}, t)
}
// MaxConn specifies maximum number of max simultaneous connections to server
func MaxConn(n int) server.Option {
return setServerOption(maxConnKey{}, n)
}
// Listener specifies the net.Listener to use instead of the default
func Listener(l net.Listener) server.Option {
return setServerOption(netListener{}, l)
}
// Options to be used to configure gRPC options
func Options(opts ...grpc.ServerOption) server.Option {
return setServerOption(grpcOptions{}, opts)
}
//
// MaxMsgSize set the maximum message in bytes the server can receive and
// send. Default maximum message size is 4 MB.
//
func MaxMsgSize(s int) server.Option {
return setServerOption(maxMsgSizeKey{}, s)
}
func newOptions(opt ...server.Option) server.Options {
opts := server.Options{
Codecs: make(map[string]codec.NewCodec),
Metadata: map[string]string{},
Broker: http.NewBroker(),
Registry: mdns.NewRegistry(),
Address: server.DefaultAddress,
Name: server.DefaultName,
Id: server.DefaultId,
Version: server.DefaultVersion,
RegisterInterval: server.DefaultRegisterInterval,
RegisterTTL: server.DefaultRegisterTTL,
}
for _, o := range opt {
o(&opts)
}
return opts
}

240
server/grpc/proto/test.pb.go
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@@ -1,240 +0,0 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.25.0
// protoc v3.6.1
// source: server/grpc/proto/test.proto
package test
import (
proto "github.com/golang/protobuf/proto"
_ "google.golang.org/genproto/googleapis/api/annotations"
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)
)
// This is a compile-time assertion that a sufficiently up-to-date version
// of the legacy proto package is being used.
const _ = proto.ProtoPackageIsVersion4
type Request struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
Uuid string `protobuf:"bytes,1,opt,name=uuid,proto3" json:"uuid,omitempty"`
Name string `protobuf:"bytes,2,opt,name=name,proto3" json:"name,omitempty"`
}
func (x *Request) Reset() {
*x = Request{}
if protoimpl.UnsafeEnabled {
mi := &file_server_grpc_proto_test_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *Request) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*Request) ProtoMessage() {}
func (x *Request) ProtoReflect() protoreflect.Message {
mi := &file_server_grpc_proto_test_proto_msgTypes[0]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use Request.ProtoReflect.Descriptor instead.
func (*Request) Descriptor() ([]byte, []int) {
return file_server_grpc_proto_test_proto_rawDescGZIP(), []int{0}
}
func (x *Request) GetUuid() string {
if x != nil {
return x.Uuid
}
return ""
}
func (x *Request) GetName() string {
if x != nil {
return x.Name
}
return ""
}
type Response struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
Msg string `protobuf:"bytes,1,opt,name=msg,proto3" json:"msg,omitempty"`
}
func (x *Response) Reset() {
*x = Response{}
if protoimpl.UnsafeEnabled {
mi := &file_server_grpc_proto_test_proto_msgTypes[1]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *Response) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*Response) ProtoMessage() {}
func (x *Response) ProtoReflect() protoreflect.Message {
mi := &file_server_grpc_proto_test_proto_msgTypes[1]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use Response.ProtoReflect.Descriptor instead.
func (*Response) Descriptor() ([]byte, []int) {
return file_server_grpc_proto_test_proto_rawDescGZIP(), []int{1}
}
func (x *Response) GetMsg() string {
if x != nil {
return x.Msg
}
return ""
}
var File_server_grpc_proto_test_proto protoreflect.FileDescriptor
var file_server_grpc_proto_test_proto_rawDesc = []byte{
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}
var (
file_server_grpc_proto_test_proto_rawDescOnce sync.Once
file_server_grpc_proto_test_proto_rawDescData = file_server_grpc_proto_test_proto_rawDesc
)
func file_server_grpc_proto_test_proto_rawDescGZIP() []byte {
file_server_grpc_proto_test_proto_rawDescOnce.Do(func() {
file_server_grpc_proto_test_proto_rawDescData = protoimpl.X.CompressGZIP(file_server_grpc_proto_test_proto_rawDescData)
})
return file_server_grpc_proto_test_proto_rawDescData
}
var file_server_grpc_proto_test_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
var file_server_grpc_proto_test_proto_goTypes = []interface{}{
(*Request)(nil), // 0: Request
(*Response)(nil), // 1: Response
}
var file_server_grpc_proto_test_proto_depIdxs = []int32{
0, // 0: Test.Call:input_type -> Request
0, // 1: Test.CallPcre:input_type -> Request
0, // 2: Test.CallPcreInvalid:input_type -> Request
1, // 3: Test.Call:output_type -> Response
1, // 4: Test.CallPcre:output_type -> Response
1, // 5: Test.CallPcreInvalid:output_type -> Response
3, // [3:6] is the sub-list for method output_type
0, // [0:3] 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_server_grpc_proto_test_proto_init() }
func file_server_grpc_proto_test_proto_init() {
if File_server_grpc_proto_test_proto != nil {
return
}
if !protoimpl.UnsafeEnabled {
file_server_grpc_proto_test_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*Request); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_server_grpc_proto_test_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*Response); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_server_grpc_proto_test_proto_rawDesc,
NumEnums: 0,
NumMessages: 2,
NumExtensions: 0,
NumServices: 1,
},
GoTypes: file_server_grpc_proto_test_proto_goTypes,
DependencyIndexes: file_server_grpc_proto_test_proto_depIdxs,
MessageInfos: file_server_grpc_proto_test_proto_msgTypes,
}.Build()
File_server_grpc_proto_test_proto = out.File
file_server_grpc_proto_test_proto_rawDesc = nil
file_server_grpc_proto_test_proto_goTypes = nil
file_server_grpc_proto_test_proto_depIdxs = nil
}

171
server/grpc/proto/test.pb.micro.go
View File

@@ -1,171 +0,0 @@
// Code generated by protoc-gen-micro. DO NOT EDIT.
// source: server/grpc/proto/test.proto
package test
import (
fmt "fmt"
proto "github.com/golang/protobuf/proto"
_ "google.golang.org/genproto/googleapis/api/annotations"
math "math"
)
import (
context "context"
api "github.com/unistack-org/micro/v3/api"
client "github.com/unistack-org/micro/v3/client"
server "github.com/unistack-org/micro/v3/server"
)
// Reference imports to suppress errors if they are not otherwise used.
var _ = proto.Marshal
var _ = fmt.Errorf
var _ = math.Inf
// This is a compile-time assertion to ensure that this generated file
// is compatible with the proto package it is being compiled against.
// A compilation error at this line likely means your copy of the
// proto package needs to be updated.
const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package
// Reference imports to suppress errors if they are not otherwise used.
var _ api.Endpoint
var _ context.Context
var _ client.Option
var _ server.Option
// Api Endpoints for Test service
func NewTestEndpoints() []*api.Endpoint {
return []*api.Endpoint{
&api.Endpoint{
Name: "Test.Call",
Path: []string{"/api/v0/test/call/{uuid}"},
Method: []string{"POST"},
Body: "*",
Handler: "rpc",
},
&api.Endpoint{
Name: "Test.CallPcre",
Path: []string{"^/api/v0/test/call/pcre/?$"},
Method: []string{"POST"},
Body: "*",
Handler: "rpc",
},
&api.Endpoint{
Name: "Test.CallPcreInvalid",
Path: []string{"^/api/v0/test/call/pcre/invalid/?"},
Method: []string{"POST"},
Body: "*",
Handler: "rpc",
},
}
}
// Client API for Test service
type TestService interface {
Call(ctx context.Context, in *Request, opts ...client.CallOption) (*Response, error)
CallPcre(ctx context.Context, in *Request, opts ...client.CallOption) (*Response, error)
CallPcreInvalid(ctx context.Context, in *Request, opts ...client.CallOption) (*Response, error)
}
type testService struct {
c client.Client
name string
}
func NewTestService(name string, c client.Client) TestService {
return &testService{
c: c,
name: name,
}
}
func (c *testService) Call(ctx context.Context, in *Request, opts ...client.CallOption) (*Response, error) {
req := c.c.NewRequest(c.name, "Test.Call", in)
out := new(Response)
err := c.c.Call(ctx, req, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *testService) CallPcre(ctx context.Context, in *Request, opts ...client.CallOption) (*Response, error) {
req := c.c.NewRequest(c.name, "Test.CallPcre", in)
out := new(Response)
err := c.c.Call(ctx, req, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *testService) CallPcreInvalid(ctx context.Context, in *Request, opts ...client.CallOption) (*Response, error) {
req := c.c.NewRequest(c.name, "Test.CallPcreInvalid", in)
out := new(Response)
err := c.c.Call(ctx, req, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
// Server API for Test service
type TestHandler interface {
Call(context.Context, *Request, *Response) error
CallPcre(context.Context, *Request, *Response) error
CallPcreInvalid(context.Context, *Request, *Response) error
}
func RegisterTestHandler(s server.Server, hdlr TestHandler, opts ...server.HandlerOption) error {
type test interface {
Call(ctx context.Context, in *Request, out *Response) error
CallPcre(ctx context.Context, in *Request, out *Response) error
CallPcreInvalid(ctx context.Context, in *Request, out *Response) error
}
type Test struct {
test
}
h := &testHandler{hdlr}
opts = append(opts, api.WithEndpoint(&api.Endpoint{
Name: "Test.Call",
Path: []string{"/api/v0/test/call/{uuid}"},
Method: []string{"POST"},
Body: "*",
Handler: "rpc",
}))
opts = append(opts, api.WithEndpoint(&api.Endpoint{
Name: "Test.CallPcre",
Path: []string{"^/api/v0/test/call/pcre/?$"},
Method: []string{"POST"},
Body: "*",
Handler: "rpc",
}))
opts = append(opts, api.WithEndpoint(&api.Endpoint{
Name: "Test.CallPcreInvalid",
Path: []string{"^/api/v0/test/call/pcre/invalid/?"},
Method: []string{"POST"},
Body: "*",
Handler: "rpc",
}))
return s.Handle(s.NewHandler(&Test{h}, opts...))
}
type testHandler struct {
TestHandler
}
func (h *testHandler) Call(ctx context.Context, in *Request, out *Response) error {
return h.TestHandler.Call(ctx, in, out)
}
func (h *testHandler) CallPcre(ctx context.Context, in *Request, out *Response) error {
return h.TestHandler.CallPcre(ctx, in, out)
}
func (h *testHandler) CallPcreInvalid(ctx context.Context, in *Request, out *Response) error {
return h.TestHandler.CallPcreInvalid(ctx, in, out)
}

24
server/grpc/proto/test.proto
View File

@@ -1,24 +0,0 @@
syntax = "proto3";
import "google/api/annotations.proto";
service Test {
rpc Call(Request) returns (Response) {
option (google.api.http) = { post: "/api/v0/test/call/{uuid}"; body:"*"; };
};
rpc CallPcre(Request) returns (Response) {
option (google.api.http) = { post: "^/api/v0/test/call/pcre/?$"; body:"*"; };
};
rpc CallPcreInvalid(Request) returns (Response) {
option (google.api.http) = { post: "^/api/v0/test/call/pcre/invalid/?"; body:"*"; };
};
}
message Request {
string uuid = 1;
string name = 2;
}
message Response {
string msg = 1;
}

162
server/grpc/proto/test_grpc.pb.go
View File

@@ -1,162 +0,0 @@
// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
package test
import (
context "context"
grpc "google.golang.org/grpc"
codes "google.golang.org/grpc/codes"
status "google.golang.org/grpc/status"
)
// This is a compile-time assertion to ensure that this generated file
// is compatible with the grpc package it is being compiled against.
const _ = grpc.SupportPackageIsVersion6
// TestClient is the client API for Test service.
//
// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
type TestClient interface {
Call(ctx context.Context, in *Request, opts ...grpc.CallOption) (*Response, error)
CallPcre(ctx context.Context, in *Request, opts ...grpc.CallOption) (*Response, error)
CallPcreInvalid(ctx context.Context, in *Request, opts ...grpc.CallOption) (*Response, error)
}
type testClient struct {
cc grpc.ClientConnInterface
}
func NewTestClient(cc grpc.ClientConnInterface) TestClient {
return &testClient{cc}
}
func (c *testClient) Call(ctx context.Context, in *Request, opts ...grpc.CallOption) (*Response, error) {
out := new(Response)
err := c.cc.Invoke(ctx, "/Test/Call", in, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *testClient) CallPcre(ctx context.Context, in *Request, opts ...grpc.CallOption) (*Response, error) {
out := new(Response)
err := c.cc.Invoke(ctx, "/Test/CallPcre", in, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *testClient) CallPcreInvalid(ctx context.Context, in *Request, opts ...grpc.CallOption) (*Response, error) {
out := new(Response)
err := c.cc.Invoke(ctx, "/Test/CallPcreInvalid", in, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
// TestServer is the server API for Test service.
// All implementations must embed UnimplementedTestServer
// for forward compatibility
type TestServer interface {
Call(context.Context, *Request) (*Response, error)
CallPcre(context.Context, *Request) (*Response, error)
CallPcreInvalid(context.Context, *Request) (*Response, error)
mustEmbedUnimplementedTestServer()
}
// UnimplementedTestServer must be embedded to have forward compatible implementations.
type UnimplementedTestServer struct {
}
func (*UnimplementedTestServer) Call(context.Context, *Request) (*Response, error) {
return nil, status.Errorf(codes.Unimplemented, "method Call not implemented")
}
func (*UnimplementedTestServer) CallPcre(context.Context, *Request) (*Response, error) {
return nil, status.Errorf(codes.Unimplemented, "method CallPcre not implemented")
}
func (*UnimplementedTestServer) CallPcreInvalid(context.Context, *Request) (*Response, error) {
return nil, status.Errorf(codes.Unimplemented, "method CallPcreInvalid not implemented")
}
func (*UnimplementedTestServer) mustEmbedUnimplementedTestServer() {}
func RegisterTestServer(s *grpc.Server, srv TestServer) {
s.RegisterService(&_Test_serviceDesc, srv)
}
func _Test_Call_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(Request)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(TestServer).Call(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/Test/Call",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(TestServer).Call(ctx, req.(*Request))
}
return interceptor(ctx, in, info, handler)
}
func _Test_CallPcre_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(Request)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(TestServer).CallPcre(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/Test/CallPcre",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(TestServer).CallPcre(ctx, req.(*Request))
}
return interceptor(ctx, in, info, handler)
}
func _Test_CallPcreInvalid_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(Request)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(TestServer).CallPcreInvalid(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/Test/CallPcreInvalid",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(TestServer).CallPcreInvalid(ctx, req.(*Request))
}
return interceptor(ctx, in, info, handler)
}
var _Test_serviceDesc = grpc.ServiceDesc{
ServiceName: "Test",
HandlerType: (*TestServer)(nil),
Methods: []grpc.MethodDesc{
{
MethodName: "Call",
Handler: _Test_Call_Handler,
},
{
MethodName: "CallPcre",
Handler: _Test_CallPcre_Handler,
},
{
MethodName: "CallPcreInvalid",
Handler: _Test_CallPcreInvalid_Handler,
},
},
Streams: []grpc.StreamDesc{},
Metadata: "server/grpc/proto/test.proto",
}

90
server/grpc/request.go
View File

@@ -1,90 +0,0 @@
package grpc
import (
"github.com/unistack-org/micro/v3/codec"
"github.com/unistack-org/micro/v3/codec/bytes"
)
type rpcRequest struct {
service string
method string
contentType string
codec codec.Codec
header map[string]string
body []byte
stream bool
payload interface{}
}
type rpcMessage struct {
topic string
contentType string
payload interface{}
header map[string]string
body []byte
codec codec.Codec
}
func (r *rpcRequest) ContentType() string {
return r.contentType
}
func (r *rpcRequest) Service() string {
return r.service
}
func (r *rpcRequest) Method() string {
return r.method
}
func (r *rpcRequest) Endpoint() string {
return r.method
}
func (r *rpcRequest) Codec() codec.Reader {
return r.codec
}
func (r *rpcRequest) Header() map[string]string {
return r.header
}
func (r *rpcRequest) Read() ([]byte, error) {
f := &bytes.Frame{}
if err := r.codec.ReadBody(f); err != nil {
return nil, err
}
return f.Data, nil
}
func (r *rpcRequest) Stream() bool {
return r.stream
}
func (r *rpcRequest) Body() interface{} {
return r.payload
}
func (r *rpcMessage) ContentType() string {
return r.contentType
}
func (r *rpcMessage) Topic() string {
return r.topic
}
func (r *rpcMessage) Payload() interface{} {
return r.payload
}
func (r *rpcMessage) Header() map[string]string {
return r.header
}
func (r *rpcMessage) Body() []byte {
return r.body
}
func (r *rpcMessage) Codec() codec.Reader {
return r.codec
}

27
server/grpc/response.go
View File

@@ -1,27 +0,0 @@
package grpc
import (
"github.com/unistack-org/micro/v3/codec"
)
type rpcResponse struct {
header map[string]string
codec codec.Codec
}
func (r *rpcResponse) Codec() codec.Writer {
return r.codec
}
func (r *rpcResponse) WriteHeader(hdr map[string]string) {
for k, v := range hdr {
r.header[k] = v
}
}
func (r *rpcResponse) Write(b []byte) error {
return r.codec.Write(&codec.Message{
Header: r.header,
Body: b,
}, nil)
}

198
server/grpc/server.go
View File

@@ -1,198 +0,0 @@
package grpc
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//
// Meh, we need to get rid of this shit
import (
"context"
"errors"
"reflect"
"sync"
"unicode"
"unicode/utf8"
"github.com/unistack-org/micro/v3/logger"
"github.com/unistack-org/micro/v3/server"
)
var (
// Precompute the reflect type for error. Can't use error directly
// because Typeof takes an empty interface value. This is annoying.
typeOfError = reflect.TypeOf((*error)(nil)).Elem()
)
type methodType struct {
method reflect.Method
ArgType reflect.Type
ReplyType reflect.Type
ContextType reflect.Type
stream bool
}
type service struct {
name string // name of service
rcvr reflect.Value // receiver of methods for the service
typ reflect.Type // type of the receiver
method map[string]*methodType // registered methods
}
// server represents an RPC Server.
type rServer struct {
mu sync.Mutex // protects the serviceMap
serviceMap map[string]*service
}
// Is this an exported - upper case - name?
func isExported(name string) bool {
rune, _ := utf8.DecodeRuneInString(name)
return unicode.IsUpper(rune)
}
// Is this type exported or a builtin?
func isExportedOrBuiltinType(t reflect.Type) bool {
for t.Kind() == reflect.Ptr {
t = t.Elem()
}
// PkgPath will be non-empty even for an exported type,
// so we need to check the type name as well.
return isExported(t.Name()) || t.PkgPath() == ""
}
// prepareEndpoint() returns a methodType for the provided method or nil
// in case if the method was unsuitable.
func prepareEndpoint(method reflect.Method) *methodType {
mtype := method.Type
mname := method.Name
var replyType, argType, contextType reflect.Type
var stream bool
// Endpoint() must be exported.
if method.PkgPath != "" {
return nil
}
switch mtype.NumIn() {
case 3:
// assuming streaming
argType = mtype.In(2)
contextType = mtype.In(1)
stream = true
case 4:
// method that takes a context
argType = mtype.In(2)
replyType = mtype.In(3)
contextType = mtype.In(1)
default:
if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
logger.Errorf("method %v of %v has wrong number of ins: %v", mname, mtype, mtype.NumIn())
}
return nil
}
if stream {
// check stream type
streamType := reflect.TypeOf((*server.Stream)(nil)).Elem()
if !argType.Implements(streamType) {
if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
logger.Errorf("%v argument does not implement Streamer interface: %v", mname, argType)
}
return nil
}
} else {
// if not stream check the replyType
// First arg need not be a pointer.
if !isExportedOrBuiltinType(argType) {
if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
logger.Errorf("%v argument type not exported: %v", mname, argType)
}
return nil
}
if replyType.Kind() != reflect.Ptr {
if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
logger.Errorf("method %v reply type not a pointer: %v", mname, replyType)
}
return nil
}
// Reply type must be exported.
if !isExportedOrBuiltinType(replyType) {
if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
logger.Errorf("method %v reply type not exported: %v", mname, replyType)
}
return nil
}
}
// Endpoint() needs one out.
if mtype.NumOut() != 1 {
if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
logger.Errorf("method %v has wrong number of outs: %v", mname, mtype.NumOut())
}
return nil
}
// The return type of the method must be error.
if returnType := mtype.Out(0); returnType != typeOfError {
if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
logger.Errorf("method %v returns %v not error", mname, returnType.String())
}
return nil
}
return &methodType{method: method, ArgType: argType, ReplyType: replyType, ContextType: contextType, stream: stream}
}
func (server *rServer) register(rcvr interface{}) error {
server.mu.Lock()
defer server.mu.Unlock()
if server.serviceMap == nil {
server.serviceMap = make(map[string]*service)
}
s := new(service)
s.typ = reflect.TypeOf(rcvr)
s.rcvr = reflect.ValueOf(rcvr)
sname := reflect.Indirect(s.rcvr).Type().Name()
if sname == "" {
logger.Fatalf("rpc: no service name for type %v", s.typ.String())
}
if !isExported(sname) {
s := "rpc Register: type " + sname + " is not exported"
if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
logger.Error(s)
}
return errors.New(s)
}
if _, present := server.serviceMap[sname]; present {
return errors.New("rpc: service already defined: " + sname)
}
s.name = sname
s.method = make(map[string]*methodType)
// Install the methods
for m := 0; m < s.typ.NumMethod(); m++ {
method := s.typ.Method(m)
if mt := prepareEndpoint(method); mt != nil {
s.method[method.Name] = mt
}
}
if len(s.method) == 0 {
s := "rpc Register: type " + sname + " has no exported methods of suitable type"
if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
logger.Error(s)
}
return errors.New(s)
}
server.serviceMap[s.name] = s
return nil
}
func (m *methodType) prepareContext(ctx context.Context) reflect.Value {
if contextv := reflect.ValueOf(ctx); contextv.IsValid() {
return contextv
}
return reflect.Zero(m.ContextType)
}

40
server/grpc/stream.go
View File

@@ -1,40 +0,0 @@
package grpc
import (
"context"
"github.com/unistack-org/micro/v3/server"
"google.golang.org/grpc"
)
// rpcStream implements a server side Stream.
type rpcStream struct {
// embed the grpc stream so we can access it
grpc.ServerStream
request server.Request
}
func (r *rpcStream) Close() error {
return nil
}
func (r *rpcStream) Error() error {
return nil
}
func (r *rpcStream) Request() server.Request {
return r.request
}
func (r *rpcStream) Context() context.Context {
return r.ServerStream.Context()
}
func (r *rpcStream) Send(m interface{}) error {
return r.ServerStream.SendMsg(m)
}
func (r *rpcStream) Recv(m interface{}) error {
return r.ServerStream.RecvMsg(m)
}

293
server/grpc/subscriber.go
View File

@@ -1,293 +0,0 @@
package grpc
import (
"context"
"fmt"
"reflect"
"runtime/debug"
"strings"
"github.com/unistack-org/micro/v3/broker"
"github.com/unistack-org/micro/v3/errors"
"github.com/unistack-org/micro/v3/logger"
"github.com/unistack-org/micro/v3/metadata"
"github.com/unistack-org/micro/v3/registry"
"github.com/unistack-org/micro/v3/server"
)
const (
subSig = "func(context.Context, interface{}) error"
)
type handler struct {
method reflect.Value
reqType reflect.Type
ctxType reflect.Type
}
type subscriber struct {
topic string
rcvr reflect.Value
typ reflect.Type
subscriber interface{}
handlers []*handler
endpoints []*registry.Endpoint
opts server.SubscriberOptions
}
func newSubscriber(topic string, sub interface{}, opts ...server.SubscriberOption) server.Subscriber {
options := server.SubscriberOptions{
AutoAck: true,
}
for _, o := range opts {
o(&options)
}
var endpoints []*registry.Endpoint
var handlers []*handler
if typ := reflect.TypeOf(sub); typ.Kind() == reflect.Func {
h := &handler{
method: reflect.ValueOf(sub),
}
switch typ.NumIn() {
case 1:
h.reqType = typ.In(0)
case 2:
h.ctxType = typ.In(0)
h.reqType = typ.In(1)
}
handlers = append(handlers, h)
endpoints = append(endpoints, &registry.Endpoint{
Name: "Func",
Request: extractSubValue(typ),
Metadata: map[string]string{
"topic": topic,
"subscriber": "true",
},
})
} else {
hdlr := reflect.ValueOf(sub)
name := reflect.Indirect(hdlr).Type().Name()
for m := 0; m < typ.NumMethod(); m++ {
method := typ.Method(m)
h := &handler{
method: method.Func,
}
switch method.Type.NumIn() {
case 2:
h.reqType = method.Type.In(1)
case 3:
h.ctxType = method.Type.In(1)
h.reqType = method.Type.In(2)
}
handlers = append(handlers, h)
endpoints = append(endpoints, &registry.Endpoint{
Name: name + "." + method.Name,
Request: extractSubValue(method.Type),
Metadata: map[string]string{
"topic": topic,
"subscriber": "true",
},
})
}
}
return &subscriber{
rcvr: reflect.ValueOf(sub),
typ: reflect.TypeOf(sub),
topic: topic,
subscriber: sub,
handlers: handlers,
endpoints: endpoints,
opts: options,
}
}
func validateSubscriber(sub server.Subscriber) error {
typ := reflect.TypeOf(sub.Subscriber())
var argType reflect.Type
if typ.Kind() == reflect.Func {
name := "Func"
switch typ.NumIn() {
case 2:
argType = typ.In(1)
default:
return fmt.Errorf("subscriber %v takes wrong number of args: %v required signature %s", name, typ.NumIn(), subSig)
}
if !isExportedOrBuiltinType(argType) {
return fmt.Errorf("subscriber %v argument type not exported: %v", name, argType)
}
if typ.NumOut() != 1 {
return fmt.Errorf("subscriber %v has wrong number of outs: %v require signature %s",
name, typ.NumOut(), subSig)
}
if returnType := typ.Out(0); returnType != typeOfError {
return fmt.Errorf("subscriber %v returns %v not error", name, returnType.String())
}
} else {
hdlr := reflect.ValueOf(sub.Subscriber())
name := reflect.Indirect(hdlr).Type().Name()
for m := 0; m < typ.NumMethod(); m++ {
method := typ.Method(m)
switch method.Type.NumIn() {
case 3:
argType = method.Type.In(2)
default:
return fmt.Errorf("subscriber %v.%v takes wrong number of args: %v required signature %s",
name, method.Name, method.Type.NumIn(), subSig)
}
if !isExportedOrBuiltinType(argType) {
return fmt.Errorf("%v argument type not exported: %v", name, argType)
}
if method.Type.NumOut() != 1 {
return fmt.Errorf(
"subscriber %v.%v has wrong number of outs: %v require signature %s",
name, method.Name, method.Type.NumOut(), subSig)
}
if returnType := method.Type.Out(0); returnType != typeOfError {
return fmt.Errorf("subscriber %v.%v returns %v not error", name, method.Name, returnType.String())
}
}
}
return nil
}
func (g *grpcServer) createSubHandler(sb *subscriber, opts server.Options) broker.Handler {
return func(msg *broker.Message) (err error) {
defer func() {
if r := recover(); r != nil {
if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
logger.Error("panic recovered: ", r)
logger.Error(string(debug.Stack()))
}
err = errors.InternalServerError(g.opts.Name+".subscriber", "panic recovered: %v", r)
}
}()
// if we don't have headers, create empty map
if msg.Header == nil {
msg.Header = make(map[string]string)
}
ct := msg.Header["Content-Type"]
if len(ct) == 0 {
msg.Header["Content-Type"] = defaultContentType
ct = defaultContentType
}
cf, err := g.newGRPCCodec(ct)
if err != nil {
return err
}
hdr := make(map[string]string, len(msg.Header))
for k, v := range msg.Header {
hdr[k] = v
}
delete(hdr, "Content-Type")
ctx := metadata.NewContext(context.Background(), hdr)
results := make(chan error, len(sb.handlers))
for i := 0; i < len(sb.handlers); i++ {
handler := sb.handlers[i]
var isVal bool
var req reflect.Value
if handler.reqType.Kind() == reflect.Ptr {
req = reflect.New(handler.reqType.Elem())
} else {
req = reflect.New(handler.reqType)
isVal = true
}
if isVal {
req = req.Elem()
}
if err = cf.Unmarshal(msg.Body, req.Interface()); err != nil {
return err
}
fn := func(ctx context.Context, msg server.Message) error {
var vals []reflect.Value
if sb.typ.Kind() != reflect.Func {
vals = append(vals, sb.rcvr)
}
if handler.ctxType != nil {
vals = append(vals, reflect.ValueOf(ctx))
}
vals = append(vals, reflect.ValueOf(msg.Payload()))
returnValues := handler.method.Call(vals)
if rerr := returnValues[0].Interface(); rerr != nil {
return rerr.(error)
}
return nil
}
for i := len(opts.SubWrappers); i > 0; i-- {
fn = opts.SubWrappers[i-1](fn)
}
if g.wg != nil {
g.wg.Add(1)
}
go func() {
if g.wg != nil {
defer g.wg.Done()
}
err := fn(ctx, &rpcMessage{
topic: sb.topic,
contentType: ct,
payload: req.Interface(),
header: msg.Header,
body: msg.Body,
})
results <- err
}()
}
var errors []string
for i := 0; i < len(sb.handlers); i++ {
if rerr := <-results; rerr != nil {
errors = append(errors, rerr.Error())
}
}
if len(errors) > 0 {
err = fmt.Errorf("subscriber error: %s", strings.Join(errors, "\n"))
}
return err
}
}
func (s *subscriber) Topic() string {
return s.topic
}
func (s *subscriber) Subscriber() interface{} {
return s.subscriber
}
func (s *subscriber) Endpoints() []*registry.Endpoint {
return s.endpoints
}
func (s *subscriber) Options() server.SubscriberOptions {
return s.opts
}

49
server/grpc/util.go
View File

@@ -1,49 +0,0 @@
package grpc
import (
"context"
"io"
"os"
"sync"
"google.golang.org/grpc/codes"
)
// convertCode converts a standard Go error into its canonical code. Note that
// this is only used to translate the error returned by the server applications.
func convertCode(err error) codes.Code {
switch err {
case nil:
return codes.OK
case io.EOF:
return codes.OutOfRange
case io.ErrClosedPipe, io.ErrNoProgress, io.ErrShortBuffer, io.ErrShortWrite, io.ErrUnexpectedEOF:
return codes.FailedPrecondition
case os.ErrInvalid:
return codes.InvalidArgument
case context.Canceled:
return codes.Canceled
case context.DeadlineExceeded:
return codes.DeadlineExceeded
}
switch {
case os.IsExist(err):
return codes.AlreadyExists
case os.IsNotExist(err):
return codes.NotFound
case os.IsPermission(err):
return codes.PermissionDenied
}
return codes.Unknown
}
func wait(ctx context.Context) *sync.WaitGroup {
if ctx == nil {
return nil
}
wg, ok := ctx.Value("wait").(*sync.WaitGroup)
if !ok {
return nil
}
return wg
}

139
server/mock/mock.go
View File

@@ -1,139 +0,0 @@
package mock
import (
"errors"
"sync"
"github.com/google/uuid"
"github.com/unistack-org/micro/v3/server"
)
type MockServer struct {
sync.Mutex
Running bool
Opts server.Options
Handlers map[string]server.Handler
Subscribers map[string][]server.Subscriber
}
var (
_ server.Server = NewServer()
)
func newMockServer(opts ...server.Option) *MockServer {
var options server.Options
for _, o := range opts {
o(&options)
}
return &MockServer{
Opts: options,
Handlers: make(map[string]server.Handler),
Subscribers: make(map[string][]server.Subscriber),
}
}
func (m *MockServer) Options() server.Options {
m.Lock()
defer m.Unlock()
return m.Opts
}
func (m *MockServer) Init(opts ...server.Option) error {
m.Lock()
defer m.Unlock()
for _, o := range opts {
o(&m.Opts)
}
return nil
}
func (m *MockServer) Handle(h server.Handler) error {
m.Lock()
defer m.Unlock()
if _, ok := m.Handlers[h.Name()]; ok {
return errors.New("Handler " + h.Name() + " already exists")
}
m.Handlers[h.Name()] = h
return nil
}
func (m *MockServer) NewHandler(h interface{}, opts ...server.HandlerOption) server.Handler {
var options server.HandlerOptions
for _, o := range opts {
o(&options)
}
return &MockHandler{
Id: uuid.New().String(),
Hdlr: h,
Opts: options,
}
}
func (m *MockServer) NewSubscriber(topic string, fn interface{}, opts ...server.SubscriberOption) server.Subscriber {
var options server.SubscriberOptions
for _, o := range opts {
o(&options)
}
return &MockSubscriber{
Id: topic,
Sub: fn,
Opts: options,
}
}
func (m *MockServer) Subscribe(sub server.Subscriber) error {
m.Lock()
defer m.Unlock()
subs := m.Subscribers[sub.Topic()]
subs = append(subs, sub)
m.Subscribers[sub.Topic()] = subs
return nil
}
func (m *MockServer) Register() error {
return nil
}
func (m *MockServer) Deregister() error {
return nil
}
func (m *MockServer) Start() error {
m.Lock()
defer m.Unlock()
if m.Running {
return errors.New("already running")
}
m.Running = true
return nil
}
func (m *MockServer) Stop() error {
m.Lock()
defer m.Unlock()
if !m.Running {
return errors.New("not running")
}
m.Running = false
return nil
}
func (m *MockServer) String() string {
return "mock"
}
func NewServer(opts ...server.Option) *MockServer {
return newMockServer(opts...)
}

28
server/mock/mock_handler.go
View File

@@ -1,28 +0,0 @@
package mock
import (
"github.com/unistack-org/micro/v3/registry"
"github.com/unistack-org/micro/v3/server"
)
type MockHandler struct {
Id string
Opts server.HandlerOptions
Hdlr interface{}
}
func (m *MockHandler) Name() string {
return m.Id
}
func (m *MockHandler) Handler() interface{} {
return m.Hdlr
}
func (m *MockHandler) Endpoints() []*registry.Endpoint {
return []*registry.Endpoint{}
}
func (m *MockHandler) Options() server.HandlerOptions {
return m.Opts
}

28
server/mock/mock_subscriber.go
View File

@@ -1,28 +0,0 @@
package mock
import (
"github.com/unistack-org/micro/v3/registry"
"github.com/unistack-org/micro/v3/server"
)
type MockSubscriber struct {
Id string
Opts server.SubscriberOptions
Sub interface{}
}
func (m *MockSubscriber) Topic() string {
return m.Id
}
func (m *MockSubscriber) Subscriber() interface{} {
return m.Sub
}
func (m *MockSubscriber) Endpoints() []*registry.Endpoint {
return []*registry.Endpoint{}
}
func (m *MockSubscriber) Options() server.SubscriberOptions {
return m.Opts
}

57
server/mock/mock_test.go
View File

@@ -1,57 +0,0 @@
package mock
import (
"testing"
"github.com/unistack-org/micro/v3/server"
)
func TestMockServer(t *testing.T) {
srv := NewServer(
server.Name("mock"),
server.Version("latest"),
)
if srv.Options().Name != "mock" {
t.Fatalf("Expected name mock, got %s", srv.Options().Name)
}
if srv.Options().Version != "latest" {
t.Fatalf("Expected version latest, got %s", srv.Options().Version)
}
srv.Init(server.Version("test"))
if srv.Options().Version != "test" {
t.Fatalf("Expected version test, got %s", srv.Options().Version)
}
h := srv.NewHandler(func() string { return "foo" })
if err := srv.Handle(h); err != nil {
t.Fatal(err)
}
sub := srv.NewSubscriber("test", func() string { return "foo" })
if err := srv.Subscribe(sub); err != nil {
t.Fatal(err)
}
if sub.Topic() != "test" {
t.Fatalf("Expected topic test got %s", sub.Topic())
}
if err := srv.Start(); err != nil {
t.Fatal(err)
}
if err := srv.Register(); err != nil {
t.Fatal(err)
}
if err := srv.Deregister(); err != nil {
t.Fatal(err)
}
if err := srv.Stop(); err != nil {
t.Fatal(err)
}
}

128
server/mucp/extractor.go
View File

@@ -1,128 +0,0 @@
package mucp
import (
"fmt"
"reflect"
"strings"
"github.com/unistack-org/micro/v3/registry"
)
func extractValue(v reflect.Type, d int) *registry.Value {
if d == 3 {
return nil
}
if v == nil {
return nil
}
if v.Kind() == reflect.Ptr {
v = v.Elem()
}
arg := &registry.Value{
Name: v.Name(),
Type: v.Name(),
}
switch v.Kind() {
case reflect.Struct:
for i := 0; i < v.NumField(); i++ {
f := v.Field(i)
val := extractValue(f.Type, d+1)
if val == nil {
continue
}
// if we can find a json tag use it
if tags := f.Tag.Get("json"); len(tags) > 0 {
parts := strings.Split(tags, ",")
if parts[0] == "-" || parts[0] == "omitempty" {
continue
}
val.Name = parts[0]
}
// if there's no name default it
if len(val.Name) == 0 {
val.Name = v.Field(i).Name
}
// still no name then continue
if len(val.Name) == 0 {
continue
}
arg.Values = append(arg.Values, val)
}
case reflect.Slice:
p := v.Elem()
if p.Kind() == reflect.Ptr {
p = p.Elem()
}
arg.Type = "[]" + p.Name()
}
return arg
}
func extractEndpoint(method reflect.Method) *registry.Endpoint {
if method.PkgPath != "" {
return nil
}
var rspType, reqType reflect.Type
var stream bool
mt := method.Type
switch mt.NumIn() {
case 3:
reqType = mt.In(1)
rspType = mt.In(2)
case 4:
reqType = mt.In(2)
rspType = mt.In(3)
default:
return nil
}
// are we dealing with a stream?
switch rspType.Kind() {
case reflect.Func, reflect.Interface:
stream = true
}
request := extractValue(reqType, 0)
response := extractValue(rspType, 0)
ep := &registry.Endpoint{
Name: method.Name,
Request: request,
Response: response,
Metadata: make(map[string]string),
}
// set endpoint metadata for stream
if stream {
ep.Metadata = map[string]string{
"stream": fmt.Sprintf("%v", stream),
}
}
return ep
}
func extractSubValue(typ reflect.Type) *registry.Value {
var reqType reflect.Type
switch typ.NumIn() {
case 1:
reqType = typ.In(0)
case 2:
reqType = typ.In(1)
case 3:
reqType = typ.In(2)
default:
return nil
}
return extractValue(reqType, 0)
}

65
server/mucp/extractor_test.go
View File

@@ -1,65 +0,0 @@
package mucp
import (
"context"
"reflect"
"testing"
"github.com/unistack-org/micro/v3/registry"
)
type testHandler struct{}
type testRequest struct{}
type testResponse struct{}
func (t *testHandler) Test(ctx context.Context, req *testRequest, rsp *testResponse) error {
return nil
}
func TestExtractEndpoint(t *testing.T) {
handler := &testHandler{}
typ := reflect.TypeOf(handler)
var endpoints []*registry.Endpoint
for m := 0; m < typ.NumMethod(); m++ {
if e := extractEndpoint(typ.Method(m)); e != nil {
endpoints = append(endpoints, e)
}
}
if i := len(endpoints); i != 1 {
t.Errorf("Expected 1 endpoint, have %d", i)
}
if endpoints[0].Name != "Test" {
t.Errorf("Expected handler Test, got %s", endpoints[0].Name)
}
if endpoints[0].Request == nil {
t.Error("Expected non nil request")
}
if endpoints[0].Response == nil {
t.Error("Expected non nil request")
}
if endpoints[0].Request.Name != "testRequest" {
t.Errorf("Expected testRequest got %s", endpoints[0].Request.Name)
}
if endpoints[0].Response.Name != "testResponse" {
t.Errorf("Expected testResponse got %s", endpoints[0].Response.Name)
}
if endpoints[0].Request.Type != "testRequest" {
t.Errorf("Expected testRequest type got %s", endpoints[0].Request.Type)
}
if endpoints[0].Response.Type != "testResponse" {
t.Errorf("Expected testResponse type got %s", endpoints[0].Response.Type)
}
}

15
server/mucp/mucp.go
View File

@@ -1,15 +0,0 @@
// Package mucp provides an mucp server
package mucp
import (
"github.com/unistack-org/micro/v3/server"
)
var (
DefaultRouter = newRpcRouter()
)
// NewServer returns a micro server interface
func NewServer(opts ...server.Option) server.Server {
return newServer(opts...)
}

56
server/mucp/options.go
View File

@@ -1,56 +0,0 @@
package mucp
import (
"github.com/unistack-org/micro/v3/broker/http"
"github.com/unistack-org/micro/v3/codec"
"github.com/unistack-org/micro/v3/registry/mdns"
"github.com/unistack-org/micro/v3/server"
thttp "github.com/unistack-org/micro/v3/transport/http"
)
func newOptions(opt ...server.Option) server.Options {
opts := server.Options{
Codecs: make(map[string]codec.NewCodec),
Metadata: map[string]string{},
RegisterInterval: server.DefaultRegisterInterval,
RegisterTTL: server.DefaultRegisterTTL,
}
for _, o := range opt {
o(&opts)
}
if opts.Broker == nil {
opts.Broker = http.NewBroker()
}
if opts.Registry == nil {
opts.Registry = mdns.NewRegistry()
}
if opts.Transport == nil {
opts.Transport = thttp.NewTransport()
}
if opts.RegisterCheck == nil {
opts.RegisterCheck = server.DefaultRegisterCheck
}
if len(opts.Address) == 0 {
opts.Address = server.DefaultAddress
}
if len(opts.Name) == 0 {
opts.Name = server.DefaultName
}
if len(opts.Id) == 0 {
opts.Id = server.DefaultId
}
if len(opts.Version) == 0 {
opts.Version = server.DefaultVersion
}
return opts
}

354
server/mucp/rpc_codec.go
View File

@@ -1,354 +0,0 @@
package mucp
import (
"bytes"
"sync"
"github.com/oxtoacart/bpool"
"github.com/pkg/errors"
"github.com/unistack-org/micro/v3/codec"
raw "github.com/unistack-org/micro/v3/codec/bytes"
"github.com/unistack-org/micro/v3/codec/grpc"
"github.com/unistack-org/micro/v3/codec/json"
"github.com/unistack-org/micro/v3/codec/jsonrpc"
"github.com/unistack-org/micro/v3/codec/proto"
"github.com/unistack-org/micro/v3/codec/protorpc"
"github.com/unistack-org/micro/v3/transport"
)
type rpcCodec struct {
socket transport.Socket
codec codec.Codec
protocol string
req *transport.Message
buf *readWriteCloser
// check if we're the first
sync.RWMutex
first chan bool
}
type readWriteCloser struct {
sync.RWMutex
wbuf *bytes.Buffer
rbuf *bytes.Buffer
}
var (
DefaultContentType = "application/protobuf"
DefaultCodecs = map[string]codec.NewCodec{
"application/grpc": grpc.NewCodec,
"application/grpc+json": grpc.NewCodec,
"application/grpc+proto": grpc.NewCodec,
"application/json": json.NewCodec,
"application/json-rpc": jsonrpc.NewCodec,
"application/protobuf": proto.NewCodec,
"application/proto-rpc": protorpc.NewCodec,
"application/octet-stream": raw.NewCodec,
}
// TODO: remove legacy codec list
defaultCodecs = map[string]codec.NewCodec{
"application/json": jsonrpc.NewCodec,
"application/json-rpc": jsonrpc.NewCodec,
"application/protobuf": protorpc.NewCodec,
"application/proto-rpc": protorpc.NewCodec,
"application/octet-stream": protorpc.NewCodec,
}
// the local buffer pool
bufferPool = bpool.NewSizedBufferPool(32, 1)
)
func (rwc *readWriteCloser) Read(p []byte) (n int, err error) {
rwc.RLock()
defer rwc.RUnlock()
return rwc.rbuf.Read(p)
}
func (rwc *readWriteCloser) Write(p []byte) (n int, err error) {
rwc.Lock()
defer rwc.Unlock()
return rwc.wbuf.Write(p)
}
func (rwc *readWriteCloser) Close() error {
return nil
}
func getHeader(hdr string, md map[string]string) string {
if hd := md[hdr]; len(hd) > 0 {
return hd
}
return md["X-"+hdr]
}
func getHeaders(m *codec.Message) {
set := func(v, hdr string) string {
if len(v) > 0 {
return v
}
return m.Header[hdr]
}
m.Id = set(m.Id, "Micro-Id")
m.Error = set(m.Error, "Micro-Error")
m.Endpoint = set(m.Endpoint, "Micro-Endpoint")
m.Method = set(m.Method, "Micro-Method")
m.Target = set(m.Target, "Micro-Service")
// TODO: remove this cruft
if len(m.Endpoint) == 0 {
m.Endpoint = m.Method
}
}
func setHeaders(m, r *codec.Message) {
set := func(hdr, v string) {
if len(v) == 0 {
return
}
m.Header[hdr] = v
m.Header["X-"+hdr] = v
}
// set headers
set("Micro-Id", r.Id)
set("Micro-Service", r.Target)
set("Micro-Method", r.Method)
set("Micro-Endpoint", r.Endpoint)
set("Micro-Error", r.Error)
}
// setupProtocol sets up the old protocol
func setupProtocol(msg *transport.Message) codec.NewCodec {
service := getHeader("Micro-Service", msg.Header)
method := getHeader("Micro-Method", msg.Header)
endpoint := getHeader("Micro-Endpoint", msg.Header)
protocol := getHeader("Micro-Protocol", msg.Header)
target := getHeader("Micro-Target", msg.Header)
topic := getHeader("Micro-Topic", msg.Header)
// if the protocol exists (mucp) do nothing
if len(protocol) > 0 {
return nil
}
// newer method of processing messages over transport
if len(topic) > 0 {
return nil
}
// if no service/method/endpoint then it's the old protocol
if len(service) == 0 && len(method) == 0 && len(endpoint) == 0 {
return defaultCodecs[msg.Header["Content-Type"]]
}
// old target method specified
if len(target) > 0 {
return defaultCodecs[msg.Header["Content-Type"]]
}
// no method then set to endpoint
if len(method) == 0 {
msg.Header["Micro-Method"] = endpoint
}
// no endpoint then set to method
if len(endpoint) == 0 {
msg.Header["Micro-Endpoint"] = method
}
return nil
}
func newRpcCodec(req *transport.Message, socket transport.Socket, c codec.NewCodec) codec.Codec {
rwc := &readWriteCloser{
rbuf: bufferPool.Get(),
wbuf: bufferPool.Get(),
}
r := &rpcCodec{
buf: rwc,
codec: c(rwc),
req: req,
socket: socket,
protocol: "mucp",
first: make(chan bool),
}
// if grpc pre-load the buffer
// TODO: remove this terrible hack
switch r.codec.String() {
case "grpc":
// write the body
rwc.rbuf.Write(req.Body)
// set the protocol
r.protocol = "grpc"
default:
// first is not preloaded
close(r.first)
}
return r
}
func (c *rpcCodec) ReadHeader(r *codec.Message, t codec.MessageType) error {
// the initial message
m := codec.Message{
Header: c.req.Header,
Body: c.req.Body,
}
// first message could be pre-loaded
select {
case <-c.first:
// not the first
var tm transport.Message
// read off the socket
if err := c.socket.Recv(&tm); err != nil {
return err
}
// reset the read buffer
c.buf.rbuf.Reset()
// write the body to the buffer
if _, err := c.buf.rbuf.Write(tm.Body); err != nil {
return err
}
// set the message header
m.Header = tm.Header
// set the message body
m.Body = tm.Body
// set req
c.req = &tm
default:
// we need to lock here to prevent race conditions
// and we make use of a channel otherwise because
// this does not result in a context switch
// locking to check c.first on every call to ReadHeader
// would otherwise drastically slow the code execution
c.Lock()
// recheck before closing because the select statement
// above is not thread safe, so thread safety here is
// mandatory
select {
case <-c.first:
default:
// disable first
close(c.first)
}
// now unlock and we never need this again
c.Unlock()
}
// set some internal things
getHeaders(&m)
// read header via codec
if err := c.codec.ReadHeader(&m, codec.Request); err != nil {
return err
}
// fallback for 0.14 and older
if len(m.Endpoint) == 0 {
m.Endpoint = m.Method
}
// set message
*r = m
return nil
}
func (c *rpcCodec) ReadBody(b interface{}) error {
// don't read empty body
if len(c.req.Body) == 0 {
return nil
}
// read raw data
if v, ok := b.(*raw.Frame); ok {
v.Data = c.req.Body
return nil
}
// decode the usual way
return c.codec.ReadBody(b)
}
func (c *rpcCodec) Write(r *codec.Message, b interface{}) error {
c.buf.wbuf.Reset()
// create a new message
m := &codec.Message{
Target: r.Target,
Method: r.Method,
Endpoint: r.Endpoint,
Id: r.Id,
Error: r.Error,
Type: r.Type,
Header: r.Header,
}
if m.Header == nil {
m.Header = map[string]string{}
}
setHeaders(m, r)
// the body being sent
var body []byte
// is it a raw frame?
if v, ok := b.(*raw.Frame); ok {
body = v.Data
// if we have encoded data just send it
} else if len(r.Body) > 0 {
body = r.Body
// write the body to codec
} else if err := c.codec.Write(m, b); err != nil {
c.buf.wbuf.Reset()
// write an error if it failed
m.Error = errors.Wrapf(err, "Unable to encode body").Error()
m.Header["Micro-Error"] = m.Error
// no body to write
if err := c.codec.Write(m, nil); err != nil {
return err
}
} else {
// set the body
body = c.buf.wbuf.Bytes()
}
// Set content type if theres content
if len(body) > 0 {
m.Header["Content-Type"] = c.req.Header["Content-Type"]
}
// send on the socket
return c.socket.Send(&transport.Message{
Header: m.Header,
Body: body,
})
}
func (c *rpcCodec) Close() error {
// close the codec
c.codec.Close()
// close the socket
err := c.socket.Close()
// put back the buffers
bufferPool.Put(c.buf.rbuf)
bufferPool.Put(c.buf.wbuf)
// return the error
return err
}
func (c *rpcCodec) String() string {
return c.protocol
}

109
server/mucp/rpc_codec_test.go
View File

@@ -1,109 +0,0 @@
package mucp
import (
"bytes"
"errors"
"testing"
"github.com/unistack-org/micro/v3/codec"
"github.com/unistack-org/micro/v3/transport"
)
// testCodec is a dummy codec that only knows how to encode nil bodies
type testCodec struct {
buf *bytes.Buffer
}
type testSocket struct {
local string
remote string
}
// TestCodecWriteError simulates what happens when a codec is unable
// to encode a message (e.g. a missing branch of an "oneof" message in
// protobufs)
//
// We expect an error to be sent to the socket. Previously the socket
// would remain open with no bytes sent, leading to client-side
// timeouts.
func TestCodecWriteError(t *testing.T) {
socket := testSocket{}
message := transport.Message{
Header: map[string]string{},
Body: []byte{},
}
rwc := readWriteCloser{
rbuf: new(bytes.Buffer),
wbuf: new(bytes.Buffer),
}
c := rpcCodec{
buf: &rwc,
codec: &testCodec{
buf: rwc.wbuf,
},
req: &message,
socket: socket,
}
err := c.Write(&codec.Message{
Endpoint: "Service.Endpoint",
Id: "0",
Error: "",
}, "body")
if err != nil {
t.Fatalf(`Expected Write to fail; got "%+v" instead`, err)
}
const expectedError = "Unable to encode body: simulating a codec write failure"
actualError := rwc.wbuf.String()
if actualError != expectedError {
t.Fatalf(`Expected error "%+v" in the write buffer, got "%+v" instead`, expectedError, actualError)
}
}
func (c *testCodec) ReadHeader(message *codec.Message, typ codec.MessageType) error {
return nil
}
func (c *testCodec) ReadBody(dest interface{}) error {
return nil
}
func (c *testCodec) Write(message *codec.Message, dest interface{}) error {
if dest != nil {
return errors.New("simulating a codec write failure")
}
c.buf.Write([]byte(message.Error))
return nil
}
func (c *testCodec) Close() error {
return nil
}
func (c *testCodec) String() string {
return "string"
}
func (s testSocket) Local() string {
return s.local
}
func (s testSocket) Remote() string {
return s.remote
}
func (s testSocket) Recv(message *transport.Message) error {
return nil
}
func (s testSocket) Send(message *transport.Message) error {
return nil
}
func (s testSocket) Close() error {
return nil
}

66
server/mucp/rpc_handler.go
View File

@@ -1,66 +0,0 @@
package mucp
import (
"reflect"
"github.com/unistack-org/micro/v3/registry"
"github.com/unistack-org/micro/v3/server"
)
type rpcHandler struct {
name string
handler interface{}
endpoints []*registry.Endpoint
opts server.HandlerOptions
}
func newRpcHandler(handler interface{}, opts ...server.HandlerOption) server.Handler {
options := server.HandlerOptions{
Metadata: make(map[string]map[string]string),
}
for _, o := range opts {
o(&options)
}
typ := reflect.TypeOf(handler)
hdlr := reflect.ValueOf(handler)
name := reflect.Indirect(hdlr).Type().Name()
var endpoints []*registry.Endpoint
for m := 0; m < typ.NumMethod(); m++ {
if e := extractEndpoint(typ.Method(m)); e != nil {
e.Name = name + "." + e.Name
for k, v := range options.Metadata[e.Name] {
e.Metadata[k] = v
}
endpoints = append(endpoints, e)
}
}
return &rpcHandler{
name: name,
handler: handler,
endpoints: endpoints,
opts: options,
}
}
func (r *rpcHandler) Name() string {
return r.name
}
func (r *rpcHandler) Handler() interface{} {
return r.handler
}
func (r *rpcHandler) Endpoints() []*registry.Endpoint {
return r.endpoints
}
func (r *rpcHandler) Options() server.HandlerOptions {
return r.opts
}

107
server/mucp/rpc_request.go
View File

@@ -1,107 +0,0 @@
package mucp
import (
"bytes"
"github.com/unistack-org/micro/v3/codec"
"github.com/unistack-org/micro/v3/transport"
"github.com/unistack-org/micro/v3/util/buf"
)
type rpcRequest struct {
service string
method string
endpoint string
contentType string
socket transport.Socket
codec codec.Codec
header map[string]string
body []byte
rawBody interface{}
stream bool
first bool
}
type rpcMessage struct {
topic string
contentType string
payload interface{}
header map[string]string
body []byte
codec codec.NewCodec
}
func (r *rpcRequest) Codec() codec.Reader {
return r.codec
}
func (r *rpcRequest) ContentType() string {
return r.contentType
}
func (r *rpcRequest) Service() string {
return r.service
}
func (r *rpcRequest) Method() string {
return r.method
}
func (r *rpcRequest) Endpoint() string {
return r.endpoint
}
func (r *rpcRequest) Header() map[string]string {
return r.header
}
func (r *rpcRequest) Body() interface{} {
return r.rawBody
}
func (r *rpcRequest) Read() ([]byte, error) {
// got a body
if r.first {
b := r.body
r.first = false
return b, nil
}
var msg transport.Message
err := r.socket.Recv(&msg)
if err != nil {
return nil, err
}
r.header = msg.Header
return msg.Body, nil
}
func (r *rpcRequest) Stream() bool {
return r.stream
}
func (r *rpcMessage) ContentType() string {
return r.contentType
}
func (r *rpcMessage) Topic() string {
return r.topic
}
func (r *rpcMessage) Payload() interface{} {
return r.payload
}
func (r *rpcMessage) Header() map[string]string {
return r.header
}
func (r *rpcMessage) Body() []byte {
return r.body
}
func (r *rpcMessage) Codec() codec.Reader {
b := buf.New(bytes.NewBuffer(r.body))
return r.codec(b)
}

35
server/mucp/rpc_response.go
View File

@@ -1,35 +0,0 @@
package mucp
import (
"net/http"
"github.com/unistack-org/micro/v3/codec"
"github.com/unistack-org/micro/v3/transport"
)
type rpcResponse struct {
header map[string]string
socket transport.Socket
codec codec.Codec
}
func (r *rpcResponse) Codec() codec.Writer {
return r.codec
}
func (r *rpcResponse) WriteHeader(hdr map[string]string) {
for k, v := range hdr {
r.header[k] = v
}
}
func (r *rpcResponse) Write(b []byte) error {
if _, ok := r.header["Content-Type"]; !ok {
r.header["Content-Type"] = http.DetectContentType(b)
}
return r.socket.Send(&transport.Message{
Header: r.header,
Body: b,
})
}

618
server/mucp/rpc_router.go
View File

@@ -1,618 +0,0 @@
package mucp
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//
// Meh, we need to get rid of this shit
import (
"context"
"errors"
"fmt"
"io"
"reflect"
"runtime/debug"
"strings"
"sync"
"unicode"
"unicode/utf8"
"github.com/unistack-org/micro/v3/codec"
merrors "github.com/unistack-org/micro/v3/errors"
"github.com/unistack-org/micro/v3/server"
)
var (
lastStreamResponseError = errors.New("EOS")
// Precompute the reflect type for error. Can't use error directly
// because Typeof takes an empty interface value. This is annoying.
typeOfError = reflect.TypeOf((*error)(nil)).Elem()
)
type methodType struct {
sync.Mutex // protects counters
method reflect.Method
ArgType reflect.Type
ReplyType reflect.Type
ContextType reflect.Type
stream bool
}
type service struct {
name string // name of service
rcvr reflect.Value // receiver of methods for the service
typ reflect.Type // type of the receiver
method map[string]*methodType // registered methods
}
type request struct {
msg *codec.Message
next *request // for free list in Server
}
type response struct {
msg *codec.Message
next *response // for free list in Server
}
// router represents an RPC router.
type router struct {
mu sync.Mutex // protects the serviceMap
serviceMap map[string]*service
reqLock sync.Mutex // protects freeReq
freeReq *request
respLock sync.Mutex // protects freeResp
freeResp *response
// handler wrappers
hdlrWrappers []server.HandlerWrapper
// subscriber wrappers
subWrappers []server.SubscriberWrapper
su sync.RWMutex
subscribers map[string][]*subscriber
}
// rpcRouter encapsulates functions that become a server.Router
type rpcRouter struct {
h func(context.Context, server.Request, interface{}) error
m func(context.Context, server.Message) error
}
func (r rpcRouter) ProcessMessage(ctx context.Context, msg server.Message) error {
return r.m(ctx, msg)
}
func (r rpcRouter) ServeRequest(ctx context.Context, req server.Request, rsp server.Response) error {
return r.h(ctx, req, rsp)
}
func newRpcRouter() *router {
return &router{
serviceMap: make(map[string]*service),
subscribers: make(map[string][]*subscriber),
}
}
// Is this an exported - upper case - name?
func isExported(name string) bool {
rune, _ := utf8.DecodeRuneInString(name)
return unicode.IsUpper(rune)
}
// Is this type exported or a builtin?
func isExportedOrBuiltinType(t reflect.Type) bool {
for t.Kind() == reflect.Ptr {
t = t.Elem()
}
// PkgPath will be non-empty even for an exported type,
// so we need to check the type name as well.
return isExported(t.Name()) || t.PkgPath() == ""
}
// prepareMethod returns a methodType for the provided method or nil
// in case if the method was unsuitable.
func prepareMethod(method reflect.Method) *methodType {
mtype := method.Type
mname := method.Name
var replyType, argType, contextType reflect.Type
var stream bool
// Method must be exported.
if method.PkgPath != "" {
return nil
}
switch mtype.NumIn() {
case 3:
// assuming streaming
argType = mtype.In(2)
contextType = mtype.In(1)
stream = true
case 4:
// method that takes a context
argType = mtype.In(2)
replyType = mtype.In(3)
contextType = mtype.In(1)
default:
log.Errorf("method %v of %v has wrong number of ins: %v", mname, mtype, mtype.NumIn())
return nil
}
if stream {
// check stream type
streamType := reflect.TypeOf((*server.Stream)(nil)).Elem()
if !argType.Implements(streamType) {
log.Errorf("%v argument does not implement Stream interface: %v", mname, argType)
return nil
}
} else {
// if not stream check the replyType
// First arg need not be a pointer.
if !isExportedOrBuiltinType(argType) {
log.Errorf("%v argument type not exported: %v", mname, argType)
return nil
}
if replyType.Kind() != reflect.Ptr {
log.Errorf("method %v reply type not a pointer: %v", mname, replyType)
return nil
}
// Reply type must be exported.
if !isExportedOrBuiltinType(replyType) {
log.Errorf("method %v reply type not exported: %v", mname, replyType)
return nil
}
}
// Method needs one out.
if mtype.NumOut() != 1 {
log.Errorf("method %v has wrong number of outs: %v", mname, mtype.NumOut())
return nil
}
// The return type of the method must be error.
if returnType := mtype.Out(0); returnType != typeOfError {
log.Errorf("method %v returns %v not error", mname, returnType.String())
return nil
}
return &methodType{method: method, ArgType: argType, ReplyType: replyType, ContextType: contextType, stream: stream}
}
func (router *router) sendResponse(sending sync.Locker, req *request, reply interface{}, cc codec.Writer, last bool) error {
msg := new(codec.Message)
msg.Type = codec.Response
resp := router.getResponse()
resp.msg = msg
resp.msg.Id = req.msg.Id
sending.Lock()
err := cc.Write(resp.msg, reply)
sending.Unlock()
router.freeResponse(resp)
return err
}
func (s *service) call(ctx context.Context, router *router, sending *sync.Mutex, mtype *methodType, req *request, argv, replyv reflect.Value, cc codec.Writer) error {
defer router.freeRequest(req)
function := mtype.method.Func
var returnValues []reflect.Value
r := &rpcRequest{
service: req.msg.Target,
contentType: req.msg.Header["Content-Type"],
method: req.msg.Method,
endpoint: req.msg.Endpoint,
body: req.msg.Body,
header: req.msg.Header,
}
// only set if not nil
if argv.IsValid() {
r.rawBody = argv.Interface()
}
if !mtype.stream {
fn := func(ctx context.Context, req server.Request, rsp interface{}) error {
returnValues = function.Call([]reflect.Value{s.rcvr, mtype.prepareContext(ctx), reflect.ValueOf(argv.Interface()), reflect.ValueOf(rsp)})
// The return value for the method is an error.
if err := returnValues[0].Interface(); err != nil {
return err.(error)
}
return nil
}
// wrap the handler
for i := len(router.hdlrWrappers); i > 0; i-- {
fn = router.hdlrWrappers[i-1](fn)
}
// execute handler
if err := fn(ctx, r, replyv.Interface()); err != nil {
return err
}
// send response
return router.sendResponse(sending, req, replyv.Interface(), cc, true)
}
// declare a local error to see if we errored out already
// keep track of the type, to make sure we return
// the same one consistently
rawStream := &rpcStream{
context: ctx,
codec: cc.(codec.Codec),
request: r,
id: req.msg.Id,
}
// Invoke the method, providing a new value for the reply.
fn := func(ctx context.Context, req server.Request, stream interface{}) error {
returnValues = function.Call([]reflect.Value{s.rcvr, mtype.prepareContext(ctx), reflect.ValueOf(stream)})
if err := returnValues[0].Interface(); err != nil {
// the function returned an error, we use that
return err.(error)
} else if serr := rawStream.Error(); serr == io.EOF || serr == io.ErrUnexpectedEOF {
return nil
} else {
// no error, we send the special EOS error
return lastStreamResponseError
}
}
// wrap the handler
for i := len(router.hdlrWrappers); i > 0; i-- {
fn = router.hdlrWrappers[i-1](fn)
}
// client.Stream request
r.stream = true
// execute handler
return fn(ctx, r, rawStream)
}
func (m *methodType) prepareContext(ctx context.Context) reflect.Value {
if contextv := reflect.ValueOf(ctx); contextv.IsValid() {
return contextv
}
return reflect.Zero(m.ContextType)
}
func (router *router) getRequest() *request {
router.reqLock.Lock()
req := router.freeReq
if req == nil {
req = new(request)
} else {
router.freeReq = req.next
*req = request{}
}
router.reqLock.Unlock()
return req
}
func (router *router) freeRequest(req *request) {
router.reqLock.Lock()
req.next = router.freeReq
router.freeReq = req
router.reqLock.Unlock()
}
func (router *router) getResponse() *response {
router.respLock.Lock()
resp := router.freeResp
if resp == nil {
resp = new(response)
} else {
router.freeResp = resp.next
*resp = response{}
}
router.respLock.Unlock()
return resp
}
func (router *router) freeResponse(resp *response) {
router.respLock.Lock()
resp.next = router.freeResp
router.freeResp = resp
router.respLock.Unlock()
}
func (router *router) readRequest(r server.Request) (service *service, mtype *methodType, req *request, argv, replyv reflect.Value, keepReading bool, err error) {
cc := r.Codec()
service, mtype, req, keepReading, err = router.readHeader(cc)
if err != nil {
if !keepReading {
return
}
// discard body
cc.ReadBody(nil)
return
}
// is it a streaming request? then we don't read the body
if mtype.stream {
if cc.(codec.Codec).String() != "grpc" {
cc.ReadBody(nil)
}
return
}
// Decode the argument value.
argIsValue := false // if true, need to indirect before calling.
if mtype.ArgType.Kind() == reflect.Ptr {
argv = reflect.New(mtype.ArgType.Elem())
} else {
argv = reflect.New(mtype.ArgType)
argIsValue = true
}
// argv guaranteed to be a pointer now.
if err = cc.ReadBody(argv.Interface()); err != nil {
return
}
if argIsValue {
argv = argv.Elem()
}
if !mtype.stream {
replyv = reflect.New(mtype.ReplyType.Elem())
}
return
}
func (router *router) readHeader(cc codec.Reader) (*service, *methodType, *request, bool, error) {
var err error
var service *service
var mtype *methodType
var req *request
// Grab the request header.
msg := new(codec.Message)
msg.Type = codec.Request
req = router.getRequest()
req.msg = msg
err = cc.ReadHeader(msg, msg.Type)
if err != nil {
req = nil
if err == io.EOF || err == io.ErrUnexpectedEOF {
return nil, nil, nil, false, err
}
return nil, nil, nil, false, fmt.Errorf("rpc: router cannot decode request: %v", err)
}
// We read the header successfully. If we see an error now,
// we can still recover and move on to the next request.
keepReading := true
serviceMethod := strings.Split(req.msg.Endpoint, ".")
if len(serviceMethod) != 2 {
return nil, nil, nil, keepReading, fmt.Errorf("rpc: service/endpoint request ill-formed: %v", req.msg.Endpoint)
}
// Look up the request.
router.mu.Lock()
service = router.serviceMap[serviceMethod[0]]
router.mu.Unlock()
if service == nil {
return nil, nil, nil, keepReading, fmt.Errorf("rpc: can't find service %v", serviceMethod[0])
}
mtype = service.method[serviceMethod[1]]
if mtype == nil {
return nil, nil, nil, keepReading, fmt.Errorf("rpc: can't find method %v", serviceMethod[1])
}
return service, mtype, req, keepReading, nil
}
func (router *router) NewHandler(h interface{}, opts ...server.HandlerOption) server.Handler {
return newRpcHandler(h, opts...)
}
func (router *router) Handle(h server.Handler) error {
router.mu.Lock()
defer router.mu.Unlock()
if router.serviceMap == nil {
router.serviceMap = make(map[string]*service)
}
if len(h.Name()) == 0 {
return errors.New("rpc.Handle: handler has no name")
}
if !isExported(h.Name()) {
return errors.New("rpc.Handle: type " + h.Name() + " is not exported")
}
rcvr := h.Handler()
s := new(service)
s.typ = reflect.TypeOf(rcvr)
s.rcvr = reflect.ValueOf(rcvr)
// check name
if _, present := router.serviceMap[h.Name()]; present {
return errors.New("rpc.Handle: service already defined: " + h.Name())
}
s.name = h.Name()
s.method = make(map[string]*methodType)
// Install the methods
for m := 0; m < s.typ.NumMethod(); m++ {
method := s.typ.Method(m)
if mt := prepareMethod(method); mt != nil {
s.method[method.Name] = mt
}
}
// Check there are methods
if len(s.method) == 0 {
return errors.New("rpc Register: type " + s.name + " has no exported methods of suitable type")
}
// save handler
router.serviceMap[s.name] = s
return nil
}
func (router *router) ServeRequest(ctx context.Context, r server.Request, rsp server.Response) error {
sending := new(sync.Mutex)
service, mtype, req, argv, replyv, keepReading, err := router.readRequest(r)
if err != nil {
if !keepReading {
return err
}
// send a response if we actually managed to read a header.
if req != nil {
router.freeRequest(req)
}
return err
}
return service.call(ctx, router, sending, mtype, req, argv, replyv, rsp.Codec())
}
func (router *router) NewSubscriber(topic string, handler interface{}, opts ...server.SubscriberOption) server.Subscriber {
return newSubscriber(topic, handler, opts...)
}
func (router *router) Subscribe(s server.Subscriber) error {
sub, ok := s.(*subscriber)
if !ok {
return fmt.Errorf("invalid subscriber: expected *subscriber")
}
if len(sub.handlers) == 0 {
return fmt.Errorf("invalid subscriber: no handler functions")
}
if err := validateSubscriber(sub); err != nil {
return err
}
router.su.Lock()
defer router.su.Unlock()
// append to subscribers
subs := router.subscribers[sub.Topic()]
subs = append(subs, sub)
router.subscribers[sub.Topic()] = subs
return nil
}
func (router *router) String() string {
return "mucp"
}
func (router *router) ProcessMessage(ctx context.Context, msg server.Message) (err error) {
defer func() {
// recover any panics
if r := recover(); r != nil {
log.Errorf("panic recovered: %v", r)
log.Error(string(debug.Stack()))
err = merrors.InternalServerError("go.micro.server", "panic recovered: %v", r)
}
}()
router.su.RLock()
// get the subscribers by topic
subs, ok := router.subscribers[msg.Topic()]
// unlock since we only need to get the subs
router.su.RUnlock()
if !ok {
return nil
}
var errResults []string
// we may have multiple subscribers for the topic
for _, sub := range subs {
// we may have multiple handlers per subscriber
for i := 0; i < len(sub.handlers); i++ {
// get the handler
handler := sub.handlers[i]
var isVal bool
var req reflect.Value
// check whether the handler is a pointer
if handler.reqType.Kind() == reflect.Ptr {
req = reflect.New(handler.reqType.Elem())
} else {
req = reflect.New(handler.reqType)
isVal = true
}
// if its a value get the element
if isVal {
req = req.Elem()
}
cc := msg.Codec()
// read the header. mostly a noop
if err = cc.ReadHeader(&codec.Message{}, codec.Event); err != nil {
return err
}
// read the body into the handler request value
if err = cc.ReadBody(req.Interface()); err != nil {
return err
}
// create the handler which will honour the SubscriberFunc type
fn := func(ctx context.Context, msg server.Message) error {
var vals []reflect.Value
if sub.typ.Kind() != reflect.Func {
vals = append(vals, sub.rcvr)
}
if handler.ctxType != nil {
vals = append(vals, reflect.ValueOf(ctx))
}
// values to pass the handler
vals = append(vals, reflect.ValueOf(msg.Payload()))
// execute the actuall call of the handler
returnValues := handler.method.Call(vals)
if rerr := returnValues[0].Interface(); rerr != nil {
err = rerr.(error)
}
return err
}
// wrap with subscriber wrappers
for i := len(router.subWrappers); i > 0; i-- {
fn = router.subWrappers[i-1](fn)
}
// create new rpc message
rpcMsg := &rpcMessage{
topic: msg.Topic(),
contentType: msg.ContentType(),
payload: req.Interface(),
codec: msg.(*rpcMessage).codec,
header: msg.Header(),
body: msg.Body(),
}
// execute the message handler
if err = fn(ctx, rpcMsg); err != nil {
errResults = append(errResults, err.Error())
}
}
}
// if no errors just return
if len(errResults) > 0 {
err = merrors.InternalServerError("go.micro.server", "subscriber error: %v", strings.Join(errResults, "\n"))
}
return err
}

1014
server/mucp/rpc_server.go
View File

File diff suppressed because it is too large Load Diff

105
server/mucp/rpc_stream.go
View File

@@ -1,105 +0,0 @@
package mucp
import (
"context"
"errors"
"io"
"sync"
"github.com/unistack-org/micro/v3/codec"
"github.com/unistack-org/micro/v3/server"
)
// Implements the Streamer interface
type rpcStream struct {
sync.RWMutex
id string
closed bool
err error
request server.Request
codec codec.Codec
context context.Context
}
func (r *rpcStream) Context() context.Context {
return r.context
}
func (r *rpcStream) Request() server.Request {
return r.request
}
func (r *rpcStream) Send(msg interface{}) error {
r.Lock()
defer r.Unlock()
resp := codec.Message{
Target: r.request.Service(),
Method: r.request.Method(),
Endpoint: r.request.Endpoint(),
Id: r.id,
Type: codec.Response,
}
if err := r.codec.Write(&resp, msg); err != nil {
r.err = err
}
return nil
}
func (r *rpcStream) Recv(msg interface{}) error {
req := new(codec.Message)
req.Type = codec.Request
err := r.codec.ReadHeader(req, req.Type)
r.Lock()
defer r.Unlock()
if err != nil {
// discard body
r.codec.ReadBody(nil)
r.err = err
return err
}
// check the error
if len(req.Error) > 0 {
// Check the client closed the stream
switch req.Error {
case lastStreamResponseError.Error():
// discard body
r.Unlock()
r.codec.ReadBody(nil)
r.Lock()
r.err = io.EOF
return io.EOF
default:
return errors.New(req.Error)
}
}
// we need to stay up to date with sequence numbers
r.id = req.Id
r.Unlock()
err = r.codec.ReadBody(msg)
r.Lock()
if err != nil {
r.err = err
return err
}
return nil
}
func (r *rpcStream) Error() error {
r.RLock()
defer r.RUnlock()
return r.err
}
func (r *rpcStream) Close() error {
r.Lock()
defer r.Unlock()
r.closed = true
return r.codec.Close()
}

133
server/mucp/rpc_stream_test.go
View File

@@ -1,133 +0,0 @@
package mucp
import (
"bytes"
"fmt"
"io"
"math/rand"
"sync"
"testing"
"time"
"github.com/golang/protobuf/proto"
"github.com/unistack-org/micro/v3/codec/json"
protoCodec "github.com/unistack-org/micro/v3/codec/proto"
)
// protoStruct implements proto.Message
type protoStruct struct {
Payload string `protobuf:"bytes,1,opt,name=service,proto3" json:"service,omitempty"`
}
func (m *protoStruct) Reset() { *m = protoStruct{} }
func (m *protoStruct) String() string { return proto.CompactTextString(m) }
func (*protoStruct) ProtoMessage() {}
// safeBuffer throws away everything and wont Read data back
type safeBuffer struct {
sync.RWMutex
buf []byte
off int
}
func (b *safeBuffer) Write(p []byte) (n int, err error) {
if len(p) == 0 {
return 0, nil
}
// Cannot retain p, so we must copy it:
p2 := make([]byte, len(p))
copy(p2, p)
b.Lock()
b.buf = append(b.buf, p2...)
b.Unlock()
return len(p2), nil
}
func (b *safeBuffer) Read(p []byte) (n int, err error) {
if len(p) == 0 {
return 0, nil
}
b.RLock()
n = copy(p, b.buf[b.off:])
b.RUnlock()
if n == 0 {
return 0, io.EOF
}
b.off += n
return n, nil
}
func (b *safeBuffer) Close() error {
return nil
}
func TestRPCStream_Sequence(t *testing.T) {
buffer := new(bytes.Buffer)
rwc := readWriteCloser{
rbuf: buffer,
wbuf: buffer,
}
codec := json.NewCodec(&rwc)
streamServer := rpcStream{
codec: codec,
request: &rpcRequest{
codec: codec,
},
}
// Check if sequence is correct
for i := 0; i < 1000; i++ {
if err := streamServer.Send(fmt.Sprintf(`{"test":"value %d"}`, i)); err != nil {
t.Errorf("Unexpected Send error: %s", err)
}
}
for i := 0; i < 1000; i++ {
var msg string
if err := streamServer.Recv(&msg); err != nil {
t.Errorf("Unexpected Recv error: %s", err)
}
if msg != fmt.Sprintf(`{"test":"value %d"}`, i) {
t.Errorf("Unexpected msg: %s", msg)
}
}
}
func TestRPCStream_Concurrency(t *testing.T) {
buffer := new(safeBuffer)
codec := protoCodec.NewCodec(buffer)
streamServer := rpcStream{
codec: codec,
request: &rpcRequest{
codec: codec,
},
}
var wg sync.WaitGroup
// Check if race conditions happen
for i := 0; i < 10; i++ {
wg.Add(2)
go func() {
for i := 0; i < 50; i++ {
msg := protoStruct{Payload: "test"}
<-time.After(time.Duration(rand.Intn(50)) * time.Millisecond)
if err := streamServer.Send(msg); err != nil {
t.Errorf("Unexpected Send error: %s", err)
}
}
wg.Done()
}()
go func() {
for i := 0; i < 50; i++ {
<-time.After(time.Duration(rand.Intn(50)) * time.Millisecond)
if err := streamServer.Recv(&protoStruct{}); err != nil {
t.Errorf("Unexpected Recv error: %s", err)
}
}
wg.Done()
}()
}
wg.Wait()
}

32
server/mucp/rpc_util.go
View File

@@ -1,32 +0,0 @@
package mucp
import (
"sync"
)
// waitgroup for global management of connections
type waitGroup struct {
// local waitgroup
lg sync.WaitGroup
// global waitgroup
gg *sync.WaitGroup
}
func (w *waitGroup) Add(i int) {
w.lg.Add(i)
if w.gg != nil {
w.gg.Add(i)
}
}
func (w *waitGroup) Done() {
w.lg.Done()
if w.gg != nil {
w.gg.Done()
}
}
func (w *waitGroup) Wait() {
// only wait on local group
w.lg.Wait()
}

185
server/mucp/subscriber.go
View File

@@ -1,185 +0,0 @@
package mucp
import (
"fmt"
"reflect"
"github.com/unistack-org/micro/v3/broker"
"github.com/unistack-org/micro/v3/registry"
"github.com/unistack-org/micro/v3/server"
"github.com/unistack-org/micro/v3/transport"
)
const (
subSig = "func(context.Context, interface{}) error"
)
type handler struct {
method reflect.Value
reqType reflect.Type
ctxType reflect.Type
}
type subscriber struct {
topic string
rcvr reflect.Value
typ reflect.Type
subscriber interface{}
handlers []*handler
endpoints []*registry.Endpoint
opts server.SubscriberOptions
}
func newMessage(msg transport.Message) *broker.Message {
return &broker.Message{
Header: msg.Header,
Body: msg.Body,
}
}
func newSubscriber(topic string, sub interface{}, opts ...server.SubscriberOption) server.Subscriber {
options := server.SubscriberOptions{
AutoAck: true,
}
for _, o := range opts {
o(&options)
}
var endpoints []*registry.Endpoint
var handlers []*handler
if typ := reflect.TypeOf(sub); typ.Kind() == reflect.Func {
h := &handler{
method: reflect.ValueOf(sub),
}
switch typ.NumIn() {
case 1:
h.reqType = typ.In(0)
case 2:
h.ctxType = typ.In(0)
h.reqType = typ.In(1)
}
handlers = append(handlers, h)
endpoints = append(endpoints, &registry.Endpoint{
Name: "Func",
Request: extractSubValue(typ),
Metadata: map[string]string{
"topic": topic,
"subscriber": "true",
},
})
} else {
hdlr := reflect.ValueOf(sub)
name := reflect.Indirect(hdlr).Type().Name()
for m := 0; m < typ.NumMethod(); m++ {
method := typ.Method(m)
h := &handler{
method: method.Func,
}
switch method.Type.NumIn() {
case 2:
h.reqType = method.Type.In(1)
case 3:
h.ctxType = method.Type.In(1)
h.reqType = method.Type.In(2)
}
handlers = append(handlers, h)
endpoints = append(endpoints, &registry.Endpoint{
Name: name + "." + method.Name,
Request: extractSubValue(method.Type),
Metadata: map[string]string{
"topic": topic,
"subscriber": "true",
},
})
}
}
return &subscriber{
rcvr: reflect.ValueOf(sub),
typ: reflect.TypeOf(sub),
topic: topic,
subscriber: sub,
handlers: handlers,
endpoints: endpoints,
opts: options,
}
}
func validateSubscriber(sub server.Subscriber) error {
typ := reflect.TypeOf(sub.Subscriber())
var argType reflect.Type
if typ.Kind() == reflect.Func {
name := "Func"
switch typ.NumIn() {
case 2:
argType = typ.In(1)
default:
return fmt.Errorf("subscriber %v takes wrong number of args: %v required signature %s", name, typ.NumIn(), subSig)
}
if !isExportedOrBuiltinType(argType) {
return fmt.Errorf("subscriber %v argument type not exported: %v", name, argType)
}
if typ.NumOut() != 1 {
return fmt.Errorf("subscriber %v has wrong number of outs: %v require signature %s",
name, typ.NumOut(), subSig)
}
if returnType := typ.Out(0); returnType != typeOfError {
return fmt.Errorf("subscriber %v returns %v not error", name, returnType.String())
}
} else {
hdlr := reflect.ValueOf(sub.Subscriber())
name := reflect.Indirect(hdlr).Type().Name()
for m := 0; m < typ.NumMethod(); m++ {
method := typ.Method(m)
switch method.Type.NumIn() {
case 3:
argType = method.Type.In(2)
default:
return fmt.Errorf("subscriber %v.%v takes wrong number of args: %v required signature %s",
name, method.Name, method.Type.NumIn(), subSig)
}
if !isExportedOrBuiltinType(argType) {
return fmt.Errorf("%v argument type not exported: %v", name, argType)
}
if method.Type.NumOut() != 1 {
return fmt.Errorf(
"subscriber %v.%v has wrong number of outs: %v require signature %s",
name, method.Name, method.Type.NumOut(), subSig)
}
if returnType := method.Type.Out(0); returnType != typeOfError {
return fmt.Errorf("subscriber %v.%v returns %v not error", name, method.Name, returnType.String())
}
}
}
return nil
}
func (s *subscriber) Topic() string {
return s.topic
}
func (s *subscriber) Subscriber() interface{} {
return s.subscriber
}
func (s *subscriber) Endpoints() []*registry.Endpoint {
return s.endpoints
}
func (s *subscriber) Options() server.SubscriberOptions {
return s.opts
}

18
server/options.go
View File

@@ -8,13 +8,10 @@ import (
"github.com/unistack-org/micro/v3/auth"
"github.com/unistack-org/micro/v3/broker"
"github.com/unistack-org/micro/v3/broker/http"
"github.com/unistack-org/micro/v3/codec"
"github.com/unistack-org/micro/v3/debug/trace"
"github.com/unistack-org/micro/v3/registry"
"github.com/unistack-org/micro/v3/registry/mdns"
"github.com/unistack-org/micro/v3/transport"
thttp "github.com/unistack-org/micro/v3/transport/http"
)
type Options struct {
@@ -64,18 +61,6 @@ func newOptions(opt ...Option) Options {
o(&opts)
}
if opts.Broker == nil {
opts.Broker = http.NewBroker()
}
if opts.Registry == nil {
opts.Registry = mdns.NewRegistry()
}
if opts.Transport == nil {
opts.Transport = thttp.NewTransport()
}
if opts.RegisterCheck == nil {
opts.RegisterCheck = DefaultRegisterCheck
}
@@ -228,9 +213,6 @@ func TLSConfig(t *tls.Config) Option {
// set the default transport if one is not
// already set. Required for Init call below.
if o.Transport == nil {
o.Transport = thttp.NewTransport()
}
// set the transport tls
o.Transport.Init(

349
server/proto/server.pb.go
View File

@@ -1,349 +0,0 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.25.0
// protoc v3.6.1
// source: server/proto/server.proto
package go_micro_server
import (
proto "github.com/golang/protobuf/proto"
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)
)
// This is a compile-time assertion that a sufficiently up-to-date version
// of the legacy proto package is being used.
const _ = proto.ProtoPackageIsVersion4
type HandleRequest struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
Service string `protobuf:"bytes,1,opt,name=service,proto3" json:"service,omitempty"`
Endpoint string `protobuf:"bytes,2,opt,name=endpoint,proto3" json:"endpoint,omitempty"`
Protocol string `protobuf:"bytes,3,opt,name=protocol,proto3" json:"protocol,omitempty"`
}
func (x *HandleRequest) Reset() {
*x = HandleRequest{}
if protoimpl.UnsafeEnabled {
mi := &file_server_proto_server_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *HandleRequest) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*HandleRequest) ProtoMessage() {}
func (x *HandleRequest) ProtoReflect() protoreflect.Message {
mi := &file_server_proto_server_proto_msgTypes[0]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use HandleRequest.ProtoReflect.Descriptor instead.
func (*HandleRequest) Descriptor() ([]byte, []int) {
return file_server_proto_server_proto_rawDescGZIP(), []int{0}
}
func (x *HandleRequest) GetService() string {
if x != nil {
return x.Service
}
return ""
}
func (x *HandleRequest) GetEndpoint() string {
if x != nil {
return x.Endpoint
}
return ""
}
func (x *HandleRequest) GetProtocol() string {
if x != nil {
return x.Protocol
}
return ""
}
type HandleResponse struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
}
func (x *HandleResponse) Reset() {
*x = HandleResponse{}
if protoimpl.UnsafeEnabled {
mi := &file_server_proto_server_proto_msgTypes[1]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *HandleResponse) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*HandleResponse) ProtoMessage() {}
func (x *HandleResponse) ProtoReflect() protoreflect.Message {
mi := &file_server_proto_server_proto_msgTypes[1]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use HandleResponse.ProtoReflect.Descriptor instead.
func (*HandleResponse) Descriptor() ([]byte, []int) {
return file_server_proto_server_proto_rawDescGZIP(), []int{1}
}
type SubscribeRequest struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
Topic string `protobuf:"bytes,1,opt,name=topic,proto3" json:"topic,omitempty"`
}
func (x *SubscribeRequest) Reset() {
*x = SubscribeRequest{}
if protoimpl.UnsafeEnabled {
mi := &file_server_proto_server_proto_msgTypes[2]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *SubscribeRequest) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*SubscribeRequest) ProtoMessage() {}
func (x *SubscribeRequest) ProtoReflect() protoreflect.Message {
mi := &file_server_proto_server_proto_msgTypes[2]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use SubscribeRequest.ProtoReflect.Descriptor instead.
func (*SubscribeRequest) Descriptor() ([]byte, []int) {
return file_server_proto_server_proto_rawDescGZIP(), []int{2}
}
func (x *SubscribeRequest) GetTopic() string {
if x != nil {
return x.Topic
}
return ""
}
type SubscribeResponse struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
}
func (x *SubscribeResponse) Reset() {
*x = SubscribeResponse{}
if protoimpl.UnsafeEnabled {
mi := &file_server_proto_server_proto_msgTypes[3]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *SubscribeResponse) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*SubscribeResponse) ProtoMessage() {}
func (x *SubscribeResponse) ProtoReflect() protoreflect.Message {
mi := &file_server_proto_server_proto_msgTypes[3]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use SubscribeResponse.ProtoReflect.Descriptor instead.
func (*SubscribeResponse) Descriptor() ([]byte, []int) {
return file_server_proto_server_proto_rawDescGZIP(), []int{3}
}
var File_server_proto_server_proto protoreflect.FileDescriptor
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var (
file_server_proto_server_proto_rawDescOnce sync.Once
file_server_proto_server_proto_rawDescData = file_server_proto_server_proto_rawDesc
)
func file_server_proto_server_proto_rawDescGZIP() []byte {
file_server_proto_server_proto_rawDescOnce.Do(func() {
file_server_proto_server_proto_rawDescData = protoimpl.X.CompressGZIP(file_server_proto_server_proto_rawDescData)
})
return file_server_proto_server_proto_rawDescData
}
var file_server_proto_server_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
var file_server_proto_server_proto_goTypes = []interface{}{
(*HandleRequest)(nil), // 0: go.micro.server.HandleRequest
(*HandleResponse)(nil), // 1: go.micro.server.HandleResponse
(*SubscribeRequest)(nil), // 2: go.micro.server.SubscribeRequest
(*SubscribeResponse)(nil), // 3: go.micro.server.SubscribeResponse
}
var file_server_proto_server_proto_depIdxs = []int32{
0, // 0: go.micro.server.Server.Handle:input_type -> go.micro.server.HandleRequest
2, // 1: go.micro.server.Server.Subscribe:input_type -> go.micro.server.SubscribeRequest
1, // 2: go.micro.server.Server.Handle:output_type -> go.micro.server.HandleResponse
3, // 3: go.micro.server.Server.Subscribe:output_type -> go.micro.server.SubscribeResponse
2, // [2:4] is the sub-list for method output_type
0, // [0:2] 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_server_proto_server_proto_init() }
func file_server_proto_server_proto_init() {
if File_server_proto_server_proto != nil {
return
}
if !protoimpl.UnsafeEnabled {
file_server_proto_server_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*HandleRequest); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_server_proto_server_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*HandleResponse); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_server_proto_server_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*SubscribeRequest); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_server_proto_server_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*SubscribeResponse); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_server_proto_server_proto_rawDesc,
NumEnums: 0,
NumMessages: 4,
NumExtensions: 0,
NumServices: 1,
},
GoTypes: file_server_proto_server_proto_goTypes,
DependencyIndexes: file_server_proto_server_proto_depIdxs,
MessageInfos: file_server_proto_server_proto_msgTypes,
}.Build()
File_server_proto_server_proto = out.File
file_server_proto_server_proto_rawDesc = nil
file_server_proto_server_proto_goTypes = nil
file_server_proto_server_proto_depIdxs = nil
}

110
server/proto/server.pb.micro.go
View File

@@ -1,110 +0,0 @@
// Code generated by protoc-gen-micro. DO NOT EDIT.
// source: server/proto/server.proto
package go_micro_server
import (
fmt "fmt"
proto "github.com/golang/protobuf/proto"
math "math"
)
import (
context "context"
api "github.com/unistack-org/micro/v3/api"
client "github.com/unistack-org/micro/v3/client"
server "github.com/unistack-org/micro/v3/server"
)
// Reference imports to suppress errors if they are not otherwise used.
var _ = proto.Marshal
var _ = fmt.Errorf
var _ = math.Inf
// This is a compile-time assertion to ensure that this generated file
// is compatible with the proto package it is being compiled against.
// A compilation error at this line likely means your copy of the
// proto package needs to be updated.
const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package
// Reference imports to suppress errors if they are not otherwise used.
var _ api.Endpoint
var _ context.Context
var _ client.Option
var _ server.Option
// Api Endpoints for Server service
func NewServerEndpoints() []*api.Endpoint {
return []*api.Endpoint{}
}
// Client API for Server service
type ServerService interface {
Handle(ctx context.Context, in *HandleRequest, opts ...client.CallOption) (*HandleResponse, error)
Subscribe(ctx context.Context, in *SubscribeRequest, opts ...client.CallOption) (*SubscribeResponse, error)
}
type serverService struct {
c client.Client
name string
}
func NewServerService(name string, c client.Client) ServerService {
return &serverService{
c: c,
name: name,
}
}
func (c *serverService) Handle(ctx context.Context, in *HandleRequest, opts ...client.CallOption) (*HandleResponse, error) {
req := c.c.NewRequest(c.name, "Server.Handle", in)
out := new(HandleResponse)
err := c.c.Call(ctx, req, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *serverService) Subscribe(ctx context.Context, in *SubscribeRequest, opts ...client.CallOption) (*SubscribeResponse, error) {
req := c.c.NewRequest(c.name, "Server.Subscribe", in)
out := new(SubscribeResponse)
err := c.c.Call(ctx, req, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
// Server API for Server service
type ServerHandler interface {
Handle(context.Context, *HandleRequest, *HandleResponse) error
Subscribe(context.Context, *SubscribeRequest, *SubscribeResponse) error
}
func RegisterServerHandler(s server.Server, hdlr ServerHandler, opts ...server.HandlerOption) error {
type server interface {
Handle(ctx context.Context, in *HandleRequest, out *HandleResponse) error
Subscribe(ctx context.Context, in *SubscribeRequest, out *SubscribeResponse) error
}
type Server struct {
server
}
h := &serverHandler{hdlr}
return s.Handle(s.NewHandler(&Server{h}, opts...))
}
type serverHandler struct {
ServerHandler
}
func (h *serverHandler) Handle(ctx context.Context, in *HandleRequest, out *HandleResponse) error {
return h.ServerHandler.Handle(ctx, in, out)
}
func (h *serverHandler) Subscribe(ctx context.Context, in *SubscribeRequest, out *SubscribeResponse) error {
return h.ServerHandler.Subscribe(ctx, in, out)
}

22
server/proto/server.proto
View File

@@ -1,22 +0,0 @@
syntax = "proto3";
package go.micro.server;
service Server {
rpc Handle(HandleRequest) returns (HandleResponse) {};
rpc Subscribe(SubscribeRequest) returns (SubscribeResponse) {};
}
message HandleRequest {
string service = 1;
string endpoint = 2;
string protocol = 3;
}
message HandleResponse {}
message SubscribeRequest {
string topic = 1;
}
message SubscribeResponse {}

126
server/proto/server_grpc.pb.go
View File

@@ -1,126 +0,0 @@
// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
package go_micro_server
import (
context "context"
grpc "google.golang.org/grpc"
codes "google.golang.org/grpc/codes"
status "google.golang.org/grpc/status"
)
// This is a compile-time assertion to ensure that this generated file
// is compatible with the grpc package it is being compiled against.
const _ = grpc.SupportPackageIsVersion6
// ServerClient is the client API for Server service.
//
// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
type ServerClient interface {
Handle(ctx context.Context, in *HandleRequest, opts ...grpc.CallOption) (*HandleResponse, error)
Subscribe(ctx context.Context, in *SubscribeRequest, opts ...grpc.CallOption) (*SubscribeResponse, error)
}
type serverClient struct {
cc grpc.ClientConnInterface
}
func NewServerClient(cc grpc.ClientConnInterface) ServerClient {
return &serverClient{cc}
}
func (c *serverClient) Handle(ctx context.Context, in *HandleRequest, opts ...grpc.CallOption) (*HandleResponse, error) {
out := new(HandleResponse)
err := c.cc.Invoke(ctx, "/go.micro.server.Server/Handle", in, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *serverClient) Subscribe(ctx context.Context, in *SubscribeRequest, opts ...grpc.CallOption) (*SubscribeResponse, error) {
out := new(SubscribeResponse)
err := c.cc.Invoke(ctx, "/go.micro.server.Server/Subscribe", in, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
// ServerServer is the server API for Server service.
// All implementations must embed UnimplementedServerServer
// for forward compatibility
type ServerServer interface {
Handle(context.Context, *HandleRequest) (*HandleResponse, error)
Subscribe(context.Context, *SubscribeRequest) (*SubscribeResponse, error)
mustEmbedUnimplementedServerServer()
}
// UnimplementedServerServer must be embedded to have forward compatible implementations.
type UnimplementedServerServer struct {
}
func (*UnimplementedServerServer) Handle(context.Context, *HandleRequest) (*HandleResponse, error) {
return nil, status.Errorf(codes.Unimplemented, "method Handle not implemented")
}
func (*UnimplementedServerServer) Subscribe(context.Context, *SubscribeRequest) (*SubscribeResponse, error) {
return nil, status.Errorf(codes.Unimplemented, "method Subscribe not implemented")
}
func (*UnimplementedServerServer) mustEmbedUnimplementedServerServer() {}
func RegisterServerServer(s *grpc.Server, srv ServerServer) {
s.RegisterService(&_Server_serviceDesc, srv)
}
func _Server_Handle_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(HandleRequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(ServerServer).Handle(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/go.micro.server.Server/Handle",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(ServerServer).Handle(ctx, req.(*HandleRequest))
}
return interceptor(ctx, in, info, handler)
}
func _Server_Subscribe_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(SubscribeRequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(ServerServer).Subscribe(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/go.micro.server.Server/Subscribe",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(ServerServer).Subscribe(ctx, req.(*SubscribeRequest))
}
return interceptor(ctx, in, info, handler)
}
var _Server_serviceDesc = grpc.ServiceDesc{
ServiceName: "go.micro.server.Server",
HandlerType: (*ServerServer)(nil),
Methods: []grpc.MethodDesc{
{
MethodName: "Handle",
Handler: _Server_Handle_Handler,
},
{
MethodName: "Subscribe",
Handler: _Server_Subscribe_Handler,
},
},
Streams: []grpc.StreamDesc{},
Metadata: "server/proto/server.proto",
}