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Merge pull request #745 from micro/registry-service

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Add service registry
This commit is contained in:
Asim Aslam 2019-09-09 13:05:46 -07:00 committed by GitHub
commit 04b31d374c
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GPG Key ID: 4AEE18F83AFDEB23
7 changed files with 1558 additions and 0 deletions
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76
registry/handler/handler.go Normal file
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@ -0,0 +1,76 @@
package handler
import (
"context"
"github.com/micro/go-micro/errors"
"github.com/micro/go-micro/registry"
pb "github.com/micro/go-micro/registry/proto"
"github.com/micro/go-micro/registry/service"
)
type Registry struct {
// internal registry
Registry registry.Registry
}
func (r *Registry) GetService(ctx context.Context, req *pb.GetRequest, rsp *pb.GetResponse) error {
services, err := r.Registry.GetService(req.Service)
if err != nil {
return errors.InternalServerError("go.micro.registry", err.Error())
}
for _, srv := range services {
rsp.Services = append(rsp.Services, service.ToProto(srv))
}
return nil
}
func (r *Registry) Register(ctx context.Context, req *pb.Service, rsp *pb.EmptyResponse) error {
err := r.Registry.Register(service.ToService(req))
if err != nil {
return errors.InternalServerError("go.micro.registry", err.Error())
}
return nil
}
func (r *Registry) Deregister(ctx context.Context, req *pb.Service, rsp *pb.EmptyResponse) error {
err := r.Registry.Deregister(service.ToService(req))
if err != nil {
return errors.InternalServerError("go.micro.registry", err.Error())
}
return nil
}
func (r *Registry) ListServices(ctx context.Context, req *pb.ListRequest, rsp *pb.ListResponse) error {
services, err := r.Registry.ListServices()
if err != nil {
return errors.InternalServerError("go.micro.registry", err.Error())
}
for _, srv := range services {
rsp.Services = append(rsp.Services, service.ToProto(srv))
}
return nil
}
func (r *Registry) Watch(ctx context.Context, req *pb.WatchRequest, rsp pb.Registry_WatchStream) error {
watcher, err := r.Registry.Watch(registry.WatchService(req.Service))
if err != nil {
return errors.InternalServerError("go.micro.registry", err.Error())
}
for {
next, err := watcher.Next()
if err != nil {
return errors.InternalServerError("go.micro.registry", err.Error())
}
err = rsp.Send(&pb.Result{
Action: next.Action,
Service: service.ToProto(next.Service),
})
if err != nil {
return errors.InternalServerError("go.micro.registry", err.Error())
}
}
return nil
}

224
registry/proto/registry.micro.go Normal file
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// Code generated by protoc-gen-micro. DO NOT EDIT.
// source: micro/go-micro/registry/proto/registry.proto
package go_micro_registry
import (
fmt "fmt"
proto "github.com/golang/protobuf/proto"
math "math"
)
import (
context "context"
client "github.com/micro/go-micro/client"
server "github.com/micro/go-micro/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 _ context.Context
var _ client.Option
var _ server.Option
// Client API for Registry service
type RegistryService interface {
GetService(ctx context.Context, in *GetRequest, opts ...client.CallOption) (*GetResponse, error)
Register(ctx context.Context, in *Service, opts ...client.CallOption) (*EmptyResponse, error)
Deregister(ctx context.Context, in *Service, opts ...client.CallOption) (*EmptyResponse, error)
ListServices(ctx context.Context, in *ListRequest, opts ...client.CallOption) (*ListResponse, error)
Watch(ctx context.Context, in *WatchRequest, opts ...client.CallOption) (Registry_WatchService, error)
}
type registryService struct {
c client.Client
name string
}
func NewRegistryService(name string, c client.Client) RegistryService {
if c == nil {
c = client.NewClient()
}
if len(name) == 0 {
name = "go.micro.registry"
}
return &registryService{
c: c,
name: name,
}
}
func (c *registryService) GetService(ctx context.Context, in *GetRequest, opts ...client.CallOption) (*GetResponse, error) {
req := c.c.NewRequest(c.name, "Registry.GetService", in)
out := new(GetResponse)
err := c.c.Call(ctx, req, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *registryService) Register(ctx context.Context, in *Service, opts ...client.CallOption) (*EmptyResponse, error) {
req := c.c.NewRequest(c.name, "Registry.Register", in)
out := new(EmptyResponse)
err := c.c.Call(ctx, req, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *registryService) Deregister(ctx context.Context, in *Service, opts ...client.CallOption) (*EmptyResponse, error) {
req := c.c.NewRequest(c.name, "Registry.Deregister", in)
out := new(EmptyResponse)
err := c.c.Call(ctx, req, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *registryService) ListServices(ctx context.Context, in *ListRequest, opts ...client.CallOption) (*ListResponse, error) {
req := c.c.NewRequest(c.name, "Registry.ListServices", in)
out := new(ListResponse)
err := c.c.Call(ctx, req, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *registryService) Watch(ctx context.Context, in *WatchRequest, opts ...client.CallOption) (Registry_WatchService, error) {
req := c.c.NewRequest(c.name, "Registry.Watch", &WatchRequest{})
stream, err := c.c.Stream(ctx, req, opts...)
if err != nil {
return nil, err
}
if err := stream.Send(in); err != nil {
return nil, err
}
return &registryServiceWatch{stream}, nil
}
type Registry_WatchService interface {
SendMsg(interface{}) error
RecvMsg(interface{}) error
Close() error
Recv() (*Result, error)
}
type registryServiceWatch struct {
stream client.Stream
}
func (x *registryServiceWatch) Close() error {
return x.stream.Close()
}
func (x *registryServiceWatch) SendMsg(m interface{}) error {
return x.stream.Send(m)
}
func (x *registryServiceWatch) RecvMsg(m interface{}) error {
return x.stream.Recv(m)
}
func (x *registryServiceWatch) Recv() (*Result, error) {
m := new(Result)
err := x.stream.Recv(m)
if err != nil {
return nil, err
}
return m, nil
}
// Server API for Registry service
type RegistryHandler interface {
GetService(context.Context, *GetRequest, *GetResponse) error
Register(context.Context, *Service, *EmptyResponse) error
Deregister(context.Context, *Service, *EmptyResponse) error
ListServices(context.Context, *ListRequest, *ListResponse) error
Watch(context.Context, *WatchRequest, Registry_WatchStream) error
}
func RegisterRegistryHandler(s server.Server, hdlr RegistryHandler, opts ...server.HandlerOption) error {
type registry interface {
GetService(ctx context.Context, in *GetRequest, out *GetResponse) error
Register(ctx context.Context, in *Service, out *EmptyResponse) error
Deregister(ctx context.Context, in *Service, out *EmptyResponse) error
ListServices(ctx context.Context, in *ListRequest, out *ListResponse) error
Watch(ctx context.Context, stream server.Stream) error
}
type Registry struct {
registry
}
h := &registryHandler{hdlr}
return s.Handle(s.NewHandler(&Registry{h}, opts...))
}
type registryHandler struct {
RegistryHandler
}
func (h *registryHandler) GetService(ctx context.Context, in *GetRequest, out *GetResponse) error {
return h.RegistryHandler.GetService(ctx, in, out)
}
func (h *registryHandler) Register(ctx context.Context, in *Service, out *EmptyResponse) error {
return h.RegistryHandler.Register(ctx, in, out)
}
func (h *registryHandler) Deregister(ctx context.Context, in *Service, out *EmptyResponse) error {
return h.RegistryHandler.Deregister(ctx, in, out)
}
func (h *registryHandler) ListServices(ctx context.Context, in *ListRequest, out *ListResponse) error {
return h.RegistryHandler.ListServices(ctx, in, out)
}
func (h *registryHandler) Watch(ctx context.Context, stream server.Stream) error {
m := new(WatchRequest)
if err := stream.Recv(m); err != nil {
return err
}
return h.RegistryHandler.Watch(ctx, m, &registryWatchStream{stream})
}
type Registry_WatchStream interface {
SendMsg(interface{}) error
RecvMsg(interface{}) error
Close() error
Send(*Result) error
}
type registryWatchStream struct {
stream server.Stream
}
func (x *registryWatchStream) Close() error {
return x.stream.Close()
}
func (x *registryWatchStream) SendMsg(m interface{}) error {
return x.stream.Send(m)
}
func (x *registryWatchStream) RecvMsg(m interface{}) error {
return x.stream.Recv(m)
}
func (x *registryWatchStream) Send(m *Result) error {
return x.stream.Send(m)
}

848
registry/proto/registry.pb.go Normal file
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@ -0,0 +1,848 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// source: micro/go-micro/registry/proto/registry.proto
package go_micro_registry
import (
context "context"
fmt "fmt"
proto "github.com/golang/protobuf/proto"
grpc "google.golang.org/grpc"
math "math"
)
// 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
// Service represents a go-micro service
type Service struct {
Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
Version string `protobuf:"bytes,2,opt,name=version,proto3" json:"version,omitempty"`
Metadata map[string]string `protobuf:"bytes,3,rep,name=metadata,proto3" json:"metadata,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
Endpoints []*Endpoint `protobuf:"bytes,4,rep,name=endpoints,proto3" json:"endpoints,omitempty"`
Nodes []*Node `protobuf:"bytes,5,rep,name=nodes,proto3" json:"nodes,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *Service) Reset() { *m = Service{} }
func (m *Service) String() string { return proto.CompactTextString(m) }
func (*Service) ProtoMessage() {}
func (*Service) Descriptor() ([]byte, []int) {
return fileDescriptor_f287a6b809166ad2, []int{0}
}
func (m *Service) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_Service.Unmarshal(m, b)
}
func (m *Service) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_Service.Marshal(b, m, deterministic)
}
func (m *Service) XXX_Merge(src proto.Message) {
xxx_messageInfo_Service.Merge(m, src)
}
func (m *Service) XXX_Size() int {
return xxx_messageInfo_Service.Size(m)
}
func (m *Service) XXX_DiscardUnknown() {
xxx_messageInfo_Service.DiscardUnknown(m)
}
var xxx_messageInfo_Service proto.InternalMessageInfo
func (m *Service) GetName() string {
if m != nil {
return m.Name
}
return ""
}
func (m *Service) GetVersion() string {
if m != nil {
return m.Version
}
return ""
}
func (m *Service) GetMetadata() map[string]string {
if m != nil {
return m.Metadata
}
return nil
}
func (m *Service) GetEndpoints() []*Endpoint {
if m != nil {
return m.Endpoints
}
return nil
}
func (m *Service) GetNodes() []*Node {
if m != nil {
return m.Nodes
}
return nil
}
// Node represents the node the service is on
type Node struct {
Id string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
Address string `protobuf:"bytes,2,opt,name=address,proto3" json:"address,omitempty"`
Port int64 `protobuf:"varint,3,opt,name=port,proto3" json:"port,omitempty"`
Metadata map[string]string `protobuf:"bytes,4,rep,name=metadata,proto3" json:"metadata,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *Node) Reset() { *m = Node{} }
func (m *Node) String() string { return proto.CompactTextString(m) }
func (*Node) ProtoMessage() {}
func (*Node) Descriptor() ([]byte, []int) {
return fileDescriptor_f287a6b809166ad2, []int{1}
}
func (m *Node) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_Node.Unmarshal(m, b)
}
func (m *Node) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_Node.Marshal(b, m, deterministic)
}
func (m *Node) XXX_Merge(src proto.Message) {
xxx_messageInfo_Node.Merge(m, src)
}
func (m *Node) XXX_Size() int {
return xxx_messageInfo_Node.Size(m)
}
func (m *Node) XXX_DiscardUnknown() {
xxx_messageInfo_Node.DiscardUnknown(m)
}
var xxx_messageInfo_Node proto.InternalMessageInfo
func (m *Node) GetId() string {
if m != nil {
return m.Id
}
return ""
}
func (m *Node) GetAddress() string {
if m != nil {
return m.Address
}
return ""
}
func (m *Node) GetPort() int64 {
if m != nil {
return m.Port
}
return 0
}
func (m *Node) GetMetadata() map[string]string {
if m != nil {
return m.Metadata
}
return nil
}
// Endpoint is a endpoint provided by a service
type Endpoint struct {
Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
Request *Value `protobuf:"bytes,2,opt,name=request,proto3" json:"request,omitempty"`
Response *Value `protobuf:"bytes,3,opt,name=response,proto3" json:"response,omitempty"`
Metadata map[string]string `protobuf:"bytes,4,rep,name=metadata,proto3" json:"metadata,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *Endpoint) Reset() { *m = Endpoint{} }
func (m *Endpoint) String() string { return proto.CompactTextString(m) }
func (*Endpoint) ProtoMessage() {}
func (*Endpoint) Descriptor() ([]byte, []int) {
return fileDescriptor_f287a6b809166ad2, []int{2}
}
func (m *Endpoint) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_Endpoint.Unmarshal(m, b)
}
func (m *Endpoint) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_Endpoint.Marshal(b, m, deterministic)
}
func (m *Endpoint) XXX_Merge(src proto.Message) {
xxx_messageInfo_Endpoint.Merge(m, src)
}
func (m *Endpoint) XXX_Size() int {
return xxx_messageInfo_Endpoint.Size(m)
}
func (m *Endpoint) XXX_DiscardUnknown() {
xxx_messageInfo_Endpoint.DiscardUnknown(m)
}
var xxx_messageInfo_Endpoint proto.InternalMessageInfo
func (m *Endpoint) GetName() string {
if m != nil {
return m.Name
}
return ""
}
func (m *Endpoint) GetRequest() *Value {
if m != nil {
return m.Request
}
return nil
}
func (m *Endpoint) GetResponse() *Value {
if m != nil {
return m.Response
}
return nil
}
func (m *Endpoint) GetMetadata() map[string]string {
if m != nil {
return m.Metadata
}
return nil
}
// Value is an opaque value for a request or response
type Value struct {
Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
Type string `protobuf:"bytes,2,opt,name=type,proto3" json:"type,omitempty"`
Values []*Value `protobuf:"bytes,3,rep,name=values,proto3" json:"values,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *Value) Reset() { *m = Value{} }
func (m *Value) String() string { return proto.CompactTextString(m) }
func (*Value) ProtoMessage() {}
func (*Value) Descriptor() ([]byte, []int) {
return fileDescriptor_f287a6b809166ad2, []int{3}
}
func (m *Value) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_Value.Unmarshal(m, b)
}
func (m *Value) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_Value.Marshal(b, m, deterministic)
}
func (m *Value) XXX_Merge(src proto.Message) {
xxx_messageInfo_Value.Merge(m, src)
}
func (m *Value) XXX_Size() int {
return xxx_messageInfo_Value.Size(m)
}
func (m *Value) XXX_DiscardUnknown() {
xxx_messageInfo_Value.DiscardUnknown(m)
}
var xxx_messageInfo_Value proto.InternalMessageInfo
func (m *Value) GetName() string {
if m != nil {
return m.Name
}
return ""
}
func (m *Value) GetType() string {
if m != nil {
return m.Type
}
return ""
}
func (m *Value) GetValues() []*Value {
if m != nil {
return m.Values
}
return nil
}
// Result is returns by the watcher
type Result struct {
Action string `protobuf:"bytes,1,opt,name=action,proto3" json:"action,omitempty"`
Service *Service `protobuf:"bytes,2,opt,name=service,proto3" json:"service,omitempty"`
Timestamp int64 `protobuf:"varint,3,opt,name=timestamp,proto3" json:"timestamp,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *Result) Reset() { *m = Result{} }
func (m *Result) String() string { return proto.CompactTextString(m) }
func (*Result) ProtoMessage() {}
func (*Result) Descriptor() ([]byte, []int) {
return fileDescriptor_f287a6b809166ad2, []int{4}
}
func (m *Result) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_Result.Unmarshal(m, b)
}
func (m *Result) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_Result.Marshal(b, m, deterministic)
}
func (m *Result) XXX_Merge(src proto.Message) {
xxx_messageInfo_Result.Merge(m, src)
}
func (m *Result) XXX_Size() int {
return xxx_messageInfo_Result.Size(m)
}
func (m *Result) XXX_DiscardUnknown() {
xxx_messageInfo_Result.DiscardUnknown(m)
}
var xxx_messageInfo_Result proto.InternalMessageInfo
func (m *Result) GetAction() string {
if m != nil {
return m.Action
}
return ""
}
func (m *Result) GetService() *Service {
if m != nil {
return m.Service
}
return nil
}
func (m *Result) GetTimestamp() int64 {
if m != nil {
return m.Timestamp
}
return 0
}
type EmptyResponse struct {
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *EmptyResponse) Reset() { *m = EmptyResponse{} }
func (m *EmptyResponse) String() string { return proto.CompactTextString(m) }
func (*EmptyResponse) ProtoMessage() {}
func (*EmptyResponse) Descriptor() ([]byte, []int) {
return fileDescriptor_f287a6b809166ad2, []int{5}
}
func (m *EmptyResponse) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_EmptyResponse.Unmarshal(m, b)
}
func (m *EmptyResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_EmptyResponse.Marshal(b, m, deterministic)
}
func (m *EmptyResponse) XXX_Merge(src proto.Message) {
xxx_messageInfo_EmptyResponse.Merge(m, src)
}
func (m *EmptyResponse) XXX_Size() int {
return xxx_messageInfo_EmptyResponse.Size(m)
}
func (m *EmptyResponse) XXX_DiscardUnknown() {
xxx_messageInfo_EmptyResponse.DiscardUnknown(m)
}
var xxx_messageInfo_EmptyResponse proto.InternalMessageInfo
type GetRequest struct {
Service string `protobuf:"bytes,1,opt,name=service,proto3" json:"service,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *GetRequest) Reset() { *m = GetRequest{} }
func (m *GetRequest) String() string { return proto.CompactTextString(m) }
func (*GetRequest) ProtoMessage() {}
func (*GetRequest) Descriptor() ([]byte, []int) {
return fileDescriptor_f287a6b809166ad2, []int{6}
}
func (m *GetRequest) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_GetRequest.Unmarshal(m, b)
}
func (m *GetRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_GetRequest.Marshal(b, m, deterministic)
}
func (m *GetRequest) XXX_Merge(src proto.Message) {
xxx_messageInfo_GetRequest.Merge(m, src)
}
func (m *GetRequest) XXX_Size() int {
return xxx_messageInfo_GetRequest.Size(m)
}
func (m *GetRequest) XXX_DiscardUnknown() {
xxx_messageInfo_GetRequest.DiscardUnknown(m)
}
var xxx_messageInfo_GetRequest proto.InternalMessageInfo
func (m *GetRequest) GetService() string {
if m != nil {
return m.Service
}
return ""
}
type GetResponse struct {
Services []*Service `protobuf:"bytes,1,rep,name=services,proto3" json:"services,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *GetResponse) Reset() { *m = GetResponse{} }
func (m *GetResponse) String() string { return proto.CompactTextString(m) }
func (*GetResponse) ProtoMessage() {}
func (*GetResponse) Descriptor() ([]byte, []int) {
return fileDescriptor_f287a6b809166ad2, []int{7}
}
func (m *GetResponse) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_GetResponse.Unmarshal(m, b)
}
func (m *GetResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_GetResponse.Marshal(b, m, deterministic)
}
func (m *GetResponse) XXX_Merge(src proto.Message) {
xxx_messageInfo_GetResponse.Merge(m, src)
}
func (m *GetResponse) XXX_Size() int {
return xxx_messageInfo_GetResponse.Size(m)
}
func (m *GetResponse) XXX_DiscardUnknown() {
xxx_messageInfo_GetResponse.DiscardUnknown(m)
}
var xxx_messageInfo_GetResponse proto.InternalMessageInfo
func (m *GetResponse) GetServices() []*Service {
if m != nil {
return m.Services
}
return nil
}
type ListRequest struct {
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *ListRequest) Reset() { *m = ListRequest{} }
func (m *ListRequest) String() string { return proto.CompactTextString(m) }
func (*ListRequest) ProtoMessage() {}
func (*ListRequest) Descriptor() ([]byte, []int) {
return fileDescriptor_f287a6b809166ad2, []int{8}
}
func (m *ListRequest) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_ListRequest.Unmarshal(m, b)
}
func (m *ListRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_ListRequest.Marshal(b, m, deterministic)
}
func (m *ListRequest) XXX_Merge(src proto.Message) {
xxx_messageInfo_ListRequest.Merge(m, src)
}
func (m *ListRequest) XXX_Size() int {
return xxx_messageInfo_ListRequest.Size(m)
}
func (m *ListRequest) XXX_DiscardUnknown() {
xxx_messageInfo_ListRequest.DiscardUnknown(m)
}
var xxx_messageInfo_ListRequest proto.InternalMessageInfo
type ListResponse struct {
Services []*Service `protobuf:"bytes,1,rep,name=services,proto3" json:"services,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *ListResponse) Reset() { *m = ListResponse{} }
func (m *ListResponse) String() string { return proto.CompactTextString(m) }
func (*ListResponse) ProtoMessage() {}
func (*ListResponse) Descriptor() ([]byte, []int) {
return fileDescriptor_f287a6b809166ad2, []int{9}
}
func (m *ListResponse) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_ListResponse.Unmarshal(m, b)
}
func (m *ListResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_ListResponse.Marshal(b, m, deterministic)
}
func (m *ListResponse) XXX_Merge(src proto.Message) {
xxx_messageInfo_ListResponse.Merge(m, src)
}
func (m *ListResponse) XXX_Size() int {
return xxx_messageInfo_ListResponse.Size(m)
}
func (m *ListResponse) XXX_DiscardUnknown() {
xxx_messageInfo_ListResponse.DiscardUnknown(m)
}
var xxx_messageInfo_ListResponse proto.InternalMessageInfo
func (m *ListResponse) GetServices() []*Service {
if m != nil {
return m.Services
}
return nil
}
type WatchRequest struct {
// service is optional
Service string `protobuf:"bytes,1,opt,name=service,proto3" json:"service,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *WatchRequest) Reset() { *m = WatchRequest{} }
func (m *WatchRequest) String() string { return proto.CompactTextString(m) }
func (*WatchRequest) ProtoMessage() {}
func (*WatchRequest) Descriptor() ([]byte, []int) {
return fileDescriptor_f287a6b809166ad2, []int{10}
}
func (m *WatchRequest) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_WatchRequest.Unmarshal(m, b)
}
func (m *WatchRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_WatchRequest.Marshal(b, m, deterministic)
}
func (m *WatchRequest) XXX_Merge(src proto.Message) {
xxx_messageInfo_WatchRequest.Merge(m, src)
}
func (m *WatchRequest) XXX_Size() int {
return xxx_messageInfo_WatchRequest.Size(m)
}
func (m *WatchRequest) XXX_DiscardUnknown() {
xxx_messageInfo_WatchRequest.DiscardUnknown(m)
}
var xxx_messageInfo_WatchRequest proto.InternalMessageInfo
func (m *WatchRequest) GetService() string {
if m != nil {
return m.Service
}
return ""
}
func init() {
proto.RegisterType((*Service)(nil), "go.micro.registry.Service")
proto.RegisterMapType((map[string]string)(nil), "go.micro.registry.Service.MetadataEntry")
proto.RegisterType((*Node)(nil), "go.micro.registry.Node")
proto.RegisterMapType((map[string]string)(nil), "go.micro.registry.Node.MetadataEntry")
proto.RegisterType((*Endpoint)(nil), "go.micro.registry.Endpoint")
proto.RegisterMapType((map[string]string)(nil), "go.micro.registry.Endpoint.MetadataEntry")
proto.RegisterType((*Value)(nil), "go.micro.registry.Value")
proto.RegisterType((*Result)(nil), "go.micro.registry.Result")
proto.RegisterType((*EmptyResponse)(nil), "go.micro.registry.EmptyResponse")
proto.RegisterType((*GetRequest)(nil), "go.micro.registry.GetRequest")
proto.RegisterType((*GetResponse)(nil), "go.micro.registry.GetResponse")
proto.RegisterType((*ListRequest)(nil), "go.micro.registry.ListRequest")
proto.RegisterType((*ListResponse)(nil), "go.micro.registry.ListResponse")
proto.RegisterType((*WatchRequest)(nil), "go.micro.registry.WatchRequest")
}
func init() {
proto.RegisterFile("micro/go-micro/registry/proto/registry.proto", fileDescriptor_f287a6b809166ad2)
}
var fileDescriptor_f287a6b809166ad2 = []byte{
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}
// Reference imports to suppress errors if they are not otherwise used.
var _ context.Context
var _ grpc.ClientConn
// 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.SupportPackageIsVersion4
// RegistryClient is the client API for Registry service.
//
// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://godoc.org/google.golang.org/grpc#ClientConn.NewStream.
type RegistryClient interface {
GetService(ctx context.Context, in *GetRequest, opts ...grpc.CallOption) (*GetResponse, error)
Register(ctx context.Context, in *Service, opts ...grpc.CallOption) (*EmptyResponse, error)
Deregister(ctx context.Context, in *Service, opts ...grpc.CallOption) (*EmptyResponse, error)
ListServices(ctx context.Context, in *ListRequest, opts ...grpc.CallOption) (*ListResponse, error)
Watch(ctx context.Context, in *WatchRequest, opts ...grpc.CallOption) (Registry_WatchClient, error)
}
type registryClient struct {
cc *grpc.ClientConn
}
func NewRegistryClient(cc *grpc.ClientConn) RegistryClient {
return &registryClient{cc}
}
func (c *registryClient) GetService(ctx context.Context, in *GetRequest, opts ...grpc.CallOption) (*GetResponse, error) {
out := new(GetResponse)
err := c.cc.Invoke(ctx, "/go.micro.registry.Registry/GetService", in, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *registryClient) Register(ctx context.Context, in *Service, opts ...grpc.CallOption) (*EmptyResponse, error) {
out := new(EmptyResponse)
err := c.cc.Invoke(ctx, "/go.micro.registry.Registry/Register", in, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *registryClient) Deregister(ctx context.Context, in *Service, opts ...grpc.CallOption) (*EmptyResponse, error) {
out := new(EmptyResponse)
err := c.cc.Invoke(ctx, "/go.micro.registry.Registry/Deregister", in, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *registryClient) ListServices(ctx context.Context, in *ListRequest, opts ...grpc.CallOption) (*ListResponse, error) {
out := new(ListResponse)
err := c.cc.Invoke(ctx, "/go.micro.registry.Registry/ListServices", in, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *registryClient) Watch(ctx context.Context, in *WatchRequest, opts ...grpc.CallOption) (Registry_WatchClient, error) {
stream, err := c.cc.NewStream(ctx, &_Registry_serviceDesc.Streams[0], "/go.micro.registry.Registry/Watch", opts...)
if err != nil {
return nil, err
}
x := &registryWatchClient{stream}
if err := x.ClientStream.SendMsg(in); err != nil {
return nil, err
}
if err := x.ClientStream.CloseSend(); err != nil {
return nil, err
}
return x, nil
}
type Registry_WatchClient interface {
Recv() (*Result, error)
grpc.ClientStream
}
type registryWatchClient struct {
grpc.ClientStream
}
func (x *registryWatchClient) Recv() (*Result, error) {
m := new(Result)
if err := x.ClientStream.RecvMsg(m); err != nil {
return nil, err
}
return m, nil
}
// RegistryServer is the server API for Registry service.
type RegistryServer interface {
GetService(context.Context, *GetRequest) (*GetResponse, error)
Register(context.Context, *Service) (*EmptyResponse, error)
Deregister(context.Context, *Service) (*EmptyResponse, error)
ListServices(context.Context, *ListRequest) (*ListResponse, error)
Watch(*WatchRequest, Registry_WatchServer) error
}
func RegisterRegistryServer(s *grpc.Server, srv RegistryServer) {
s.RegisterService(&_Registry_serviceDesc, srv)
}
func _Registry_GetService_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(GetRequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(RegistryServer).GetService(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/go.micro.registry.Registry/GetService",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(RegistryServer).GetService(ctx, req.(*GetRequest))
}
return interceptor(ctx, in, info, handler)
}
func _Registry_Register_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(Service)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(RegistryServer).Register(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/go.micro.registry.Registry/Register",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(RegistryServer).Register(ctx, req.(*Service))
}
return interceptor(ctx, in, info, handler)
}
func _Registry_Deregister_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(Service)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(RegistryServer).Deregister(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/go.micro.registry.Registry/Deregister",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(RegistryServer).Deregister(ctx, req.(*Service))
}
return interceptor(ctx, in, info, handler)
}
func _Registry_ListServices_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(ListRequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(RegistryServer).ListServices(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/go.micro.registry.Registry/ListServices",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(RegistryServer).ListServices(ctx, req.(*ListRequest))
}
return interceptor(ctx, in, info, handler)
}
func _Registry_Watch_Handler(srv interface{}, stream grpc.ServerStream) error {
m := new(WatchRequest)
if err := stream.RecvMsg(m); err != nil {
return err
}
return srv.(RegistryServer).Watch(m, &registryWatchServer{stream})
}
type Registry_WatchServer interface {
Send(*Result) error
grpc.ServerStream
}
type registryWatchServer struct {
grpc.ServerStream
}
func (x *registryWatchServer) Send(m *Result) error {
return x.ServerStream.SendMsg(m)
}
var _Registry_serviceDesc = grpc.ServiceDesc{
ServiceName: "go.micro.registry.Registry",
HandlerType: (*RegistryServer)(nil),
Methods: []grpc.MethodDesc{
{
MethodName: "GetService",
Handler: _Registry_GetService_Handler,
},
{
MethodName: "Register",
Handler: _Registry_Register_Handler,
},
{
MethodName: "Deregister",
Handler: _Registry_Deregister_Handler,
},
{
MethodName: "ListServices",
Handler: _Registry_ListServices_Handler,
},
},
Streams: []grpc.StreamDesc{
{
StreamName: "Watch",
Handler: _Registry_Watch_Handler,
ServerStreams: true,
},
},
Metadata: "micro/go-micro/registry/proto/registry.proto",
}

73
registry/proto/registry.proto Normal file
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@ -0,0 +1,73 @@
syntax = "proto3";
package go.micro.registry;
service Registry {
rpc GetService(GetRequest) returns (GetResponse) {};
rpc Register(Service) returns (EmptyResponse) {};
rpc Deregister(Service) returns (EmptyResponse) {};
rpc ListServices(ListRequest) returns (ListResponse) {};
rpc Watch(WatchRequest) returns (stream Result) {};
}
// Service represents a go-micro service
message Service {
string name = 1;
string version = 2;
map<string,string> metadata = 3;
repeated Endpoint endpoints = 4;
repeated Node nodes = 5;
}
// Node represents the node the service is on
message Node {
string id = 1;
string address = 2;
int64 port = 3;
map<string,string> metadata = 4;
}
// Endpoint is a endpoint provided by a service
message Endpoint {
string name = 1;
Value request = 2;
Value response = 3;
map<string, string> metadata = 4;
}
// Value is an opaque value for a request or response
message Value {
string name = 1;
string type = 2;
repeated Value values = 3;
}
// Result is returns by the watcher
message Result {
string action = 1; // create, update, delete
Service service = 2;
int64 timestamp = 3; // unix timestamp
}
message EmptyResponse {}
message GetRequest {
string service = 1;
}
message GetResponse {
repeated Service services = 1;
}
message ListRequest {
// TODO: filtering
}
message ListResponse {
repeated Service services = 1;
}
message WatchRequest {
// service is optional
string service = 1;
}

155
registry/service/service.go Normal file
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@ -0,0 +1,155 @@
// Package service uses the registry service
package service
import (
"context"
"time"
"github.com/micro/go-micro/client"
"github.com/micro/go-micro/registry"
pb "github.com/micro/go-micro/registry/proto"
)
var (
// The default service name
DefaultService = "go.micro.service"
)
type serviceRegistry struct {
opts registry.Options
// name of the registry
name string
// address
address []string
// client to call registry
client pb.RegistryService
}
func (s *serviceRegistry) callOpts() []client.CallOption {
var opts []client.CallOption
// set registry address
if len(s.address) > 0 {
opts = append(opts, client.WithAddress(s.address...))
}
// set timeout
if s.opts.Timeout > time.Duration(0) {
opts = append(opts, client.WithRequestTimeout(s.opts.Timeout))
}
return opts
}
func (s *serviceRegistry) Init(opts ...registry.Option) error {
for _, o := range opts {
o(&s.opts)
}
return nil
}
func (s *serviceRegistry) Options() registry.Options {
return s.opts
}
func (s *serviceRegistry) Register(srv *registry.Service, opts ...registry.RegisterOption) error {
var options registry.RegisterOptions
for _, o := range opts {
o(&options)
}
// register the service
_, err := s.client.Register(context.TODO(), ToProto(srv), s.callOpts()...)
if err != nil {
return err
}
return nil
}
func (s *serviceRegistry) Deregister(srv *registry.Service) error {
// deregister the service
_, err := s.client.Deregister(context.TODO(), ToProto(srv), s.callOpts()...)
if err != nil {
return err
}
return nil
}
func (s *serviceRegistry) GetService(name string) ([]*registry.Service, error) {
rsp, err := s.client.GetService(context.TODO(), &pb.GetRequest{
Service: name,
}, s.callOpts()...)
if err != nil {
return nil, err
}
var services []*registry.Service
for _, service := range rsp.Services {
services = append(services, ToService(service))
}
return services, nil
}
func (s *serviceRegistry) ListServices() ([]*registry.Service, error) {
rsp, err := s.client.ListServices(context.TODO(), &pb.ListRequest{}, s.callOpts()...)
if err != nil {
return nil, err
}
var services []*registry.Service
for _, service := range rsp.Services {
services = append(services, ToService(service))
}
return services, nil
}
func (s *serviceRegistry) Watch(opts ...registry.WatchOption) (registry.Watcher, error) {
var options registry.WatchOptions
for _, o := range opts {
o(&options)
}
stream, err := s.client.Watch(context.TODO(), &pb.WatchRequest{
Service: options.Service,
}, s.callOpts()...)
if err != nil {
return nil, err
}
return newWatcher(stream), nil
}
func (s *serviceRegistry) String() string {
return s.name
}
// NewRegistry returns a new registry service client
func NewRegistry(opts ...registry.Option) registry.Registry {
var options registry.Options
for _, o := range opts {
o(&options)
}
// use mdns to find the service registry
mReg := registry.NewRegistry()
// create new client with mdns
cli := client.NewClient(
client.Registry(mReg),
)
// service name
// TODO: accept option
name := DefaultService
return &serviceRegistry{
opts: options,
name: name,
address: options.Addrs,
client: pb.NewRegistryService(name, cli),
}
}

133
registry/service/util.go Normal file
View File

@ -0,0 +1,133 @@
package service
import (
"github.com/micro/go-micro/registry"
pb "github.com/micro/go-micro/registry/proto"
)
func values(v []*registry.Value) []*pb.Value {
if len(v) == 0 {
return []*pb.Value{}
}
var vs []*pb.Value
for _, vi := range v {
vs = append(vs, &pb.Value{
Name: vi.Name,
Type: vi.Type,
Values: values(vi.Values),
})
}
return vs
}
func toValues(v []*pb.Value) []*registry.Value {
if len(v) == 0 {
return []*registry.Value{}
}
var vs []*registry.Value
for _, vi := range v {
vs = append(vs, &registry.Value{
Name: vi.Name,
Type: vi.Type,
Values: toValues(vi.Values),
})
}
return vs
}
func ToProto(s *registry.Service) *pb.Service {
var endpoints []*pb.Endpoint
for _, ep := range s.Endpoints {
var request, response *pb.Value
if ep.Request != nil {
request = &pb.Value{
Name: ep.Request.Name,
Type: ep.Request.Type,
Values: values(ep.Request.Values),
}
}
if ep.Response != nil {
response = &pb.Value{
Name: ep.Response.Name,
Type: ep.Response.Type,
Values: values(ep.Response.Values),
}
}
endpoints = append(endpoints, &pb.Endpoint{
Name: ep.Name,
Request: request,
Response: response,
Metadata: ep.Metadata,
})
}
var nodes []*pb.Node
for _, node := range s.Nodes {
nodes = append(nodes, &pb.Node{
Id: node.Id,
Address: node.Address,
Metadata: node.Metadata,
})
}
return &pb.Service{
Name: s.Name,
Version: s.Version,
Metadata: s.Metadata,
Endpoints: endpoints,
Nodes: nodes,
}
}
func ToService(s *pb.Service) *registry.Service {
var endpoints []*registry.Endpoint
for _, ep := range s.Endpoints {
var request, response *registry.Value
if ep.Request != nil {
request = &registry.Value{
Name: ep.Request.Name,
Type: ep.Request.Type,
Values: toValues(ep.Request.Values),
}
}
if ep.Response != nil {
response = &registry.Value{
Name: ep.Response.Name,
Type: ep.Response.Type,
Values: toValues(ep.Response.Values),
}
}
endpoints = append(endpoints, &registry.Endpoint{
Name: ep.Name,
Request: request,
Response: response,
Metadata: ep.Metadata,
})
}
var nodes []*registry.Node
for _, node := range s.Nodes {
nodes = append(nodes, &registry.Node{
Id: node.Id,
Address: node.Address,
Metadata: node.Metadata,
})
}
return &registry.Service{
Name: s.Name,
Version: s.Version,
Metadata: s.Metadata,
Endpoints: endpoints,
Nodes: nodes,
}
}

49
registry/service/watcher.go Normal file
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@ -0,0 +1,49 @@
package service
import (
"github.com/micro/go-micro/registry"
pb "github.com/micro/go-micro/registry/proto"
)
type serviceWatcher struct {
stream pb.Registry_WatchService
closed chan bool
}
func (s *serviceWatcher) Next() (*registry.Result, error) {
for {
// check if closed
select {
case <-s.closed:
return nil, registry.ErrWatcherStopped
default:
}
r, err := s.stream.Recv()
if err != nil {
return nil, err
}
return &registry.Result{
Action: r.Action,
Service: ToService(r.Service),
}, nil
}
}
func (s *serviceWatcher) Stop() {
select {
case <-s.closed:
return
default:
close(s.closed)
s.stream.Close()
}
}
func newWatcher(stream pb.Registry_WatchService) registry.Watcher {
return &serviceWatcher{
stream: stream,
closed: make(chan bool),
}
}