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Merge pull request #844 from micro/store

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Store service implementation
This commit is contained in:
Asim Aslam 2019-10-11 14:49:44 +01:00 committed by GitHub
commit 9bfe4d9bf7
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GPG Key ID: 4AEE18F83AFDEB23
10 changed files with 1167 additions and 45 deletions
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59
store/etcd/etcd.go
View File

@ -6,6 +6,7 @@ import (
"log"
client "github.com/coreos/etcd/clientv3"
"github.com/coreos/etcd/mvcc/mvccpb"
"github.com/micro/go-micro/config/options"
"github.com/micro/go-micro/store"
)
@ -15,30 +16,56 @@ type ekv struct {
kv client.KV
}
func (e *ekv) Read(key string) (*store.Record, error) {
keyval, err := e.kv.Get(context.Background(), key)
if err != nil {
return nil, err
func (e *ekv) Read(keys ...string) ([]*store.Record, error) {
var values []*mvccpb.KeyValue
for _, key := range keys {
keyval, err := e.kv.Get(context.Background(), key)
if err != nil {
return nil, err
}
if keyval == nil || len(keyval.Kvs) == 0 {
return nil, store.ErrNotFound
}
values = append(values, keyval.Kvs...)
}
if keyval == nil || len(keyval.Kvs) == 0 {
return nil, store.ErrNotFound
var records []*store.Record
for _, kv := range values {
records = append(records, &store.Record{
Key: string(kv.Key),
Value: kv.Value,
// TODO: implement expiry
})
}
return &store.Record{
Key: string(keyval.Kvs[0].Key),
Value: keyval.Kvs[0].Value,
}, nil
return records, nil
}
func (e *ekv) Delete(key string) error {
_, err := e.kv.Delete(context.Background(), key)
return err
func (e *ekv) Delete(keys ...string) error {
var gerr error
for _, key := range keys {
_, err := e.kv.Delete(context.Background(), key)
if err != nil {
gerr = err
}
}
return gerr
}
func (e *ekv) Write(record *store.Record) error {
_, err := e.kv.Put(context.Background(), record.Key, string(record.Value))
return err
func (e *ekv) Write(records ...*store.Record) error {
var gerr error
for _, record := range records {
// TODO create lease to expire keys
_, err := e.kv.Put(context.Background(), record.Key, string(record.Value))
if err != nil {
gerr = err
}
}
return gerr
}
func (e *ekv) Sync() ([]*store.Record, error) {

58
store/memory/memory.go
View File

@ -48,51 +48,61 @@ func (m *memoryStore) Sync() ([]*store.Record, error) {
return values, nil
}
func (m *memoryStore) Read(key string) (*store.Record, error) {
func (m *memoryStore) Read(keys ...string) ([]*store.Record, error) {
m.RLock()
defer m.RUnlock()
v, ok := m.values[key]
if !ok {
return nil, store.ErrNotFound
}
var records []*store.Record
// get expiry
d := v.r.Expiry
t := time.Since(v.c)
// expired
if d > time.Duration(0) {
if t > d {
for _, key := range keys {
v, ok := m.values[key]
if !ok {
return nil, store.ErrNotFound
}
// update expiry
v.r.Expiry -= t
v.c = time.Now()
// get expiry
d := v.r.Expiry
t := time.Since(v.c)
// expired
if d > time.Duration(0) {
if t > d {
return nil, store.ErrNotFound
}
// update expiry
v.r.Expiry -= t
v.c = time.Now()
}
records = append(records, v.r)
}
return v.r, nil
return records, nil
}
func (m *memoryStore) Write(r *store.Record) error {
func (m *memoryStore) Write(records ...*store.Record) error {
m.Lock()
defer m.Unlock()
// set the record
m.values[r.Key] = &memoryRecord{
r: r,
c: time.Now(),
for _, r := range records {
// set the record
m.values[r.Key] = &memoryRecord{
r: r,
c: time.Now(),
}
}
return nil
}
func (m *memoryStore) Delete(key string) error {
func (m *memoryStore) Delete(keys ...string) error {
m.Lock()
defer m.Unlock()
// delete the value
delete(m.values, key)
for _, key := range keys {
// delete the value
delete(m.values, key)
}
return nil
}

2
store/memory/memory_test.go
View File

@ -25,7 +25,7 @@ func TestReadRecordExpire(t *testing.T) {
if err != nil {
t.Fatal(err)
}
if rrec.Expiry >= expire {
if rrec[0].Expiry >= expire {
t.Fatal("expiry of read record is not changed")
}

89
store/service/handler/handler.go Normal file
View File

@ -0,0 +1,89 @@
package handler
import (
"context"
"io"
"time"
"github.com/micro/go-micro/errors"
"github.com/micro/go-micro/store"
pb "github.com/micro/go-micro/store/service/proto"
)
type Store struct {
Store store.Store
}
func (s *Store) Read(ctx context.Context, req *pb.ReadRequest, rsp *pb.ReadResponse) error {
vals, err := s.Store.Read(req.Keys...)
if err != nil {
return errors.InternalServerError("go.micro.store", err.Error())
}
for _, val := range vals {
rsp.Records = append(rsp.Records, &pb.Record{
Key: val.Key,
Value: val.Value,
Expiry: int64(val.Expiry.Seconds()),
})
}
return nil
}
func (s *Store) Write(ctx context.Context, req *pb.WriteRequest, rsp *pb.WriteResponse) error {
var records []*store.Record
for _, record := range req.Records {
records = append(records, &store.Record{
Key: record.Key,
Value: record.Value,
Expiry: time.Duration(record.Expiry) * time.Second,
})
}
err := s.Store.Write(records...)
if err != nil {
return errors.InternalServerError("go.micro.store", err.Error())
}
return nil
}
func (s *Store) Delete(ctx context.Context, req *pb.DeleteRequest, rsp *pb.DeleteResponse) error {
err := s.Store.Delete(req.Keys...)
if err != nil {
return errors.InternalServerError("go.micro.store", err.Error())
}
return nil
}
func (s *Store) Sync(ctx context.Context, req *pb.SyncRequest, stream pb.Store_SyncStream) error {
var vals []*store.Record
var err error
if len(req.Key) > 0 {
vals, err = s.Store.Read(req.Key)
} else {
vals, err = s.Store.Sync()
}
if err != nil {
return errors.InternalServerError("go.micro.store", err.Error())
}
rsp := new(pb.SyncResponse)
// TODO: batch sync
for _, val := range vals {
rsp.Records = append(rsp.Records, &pb.Record{
Key: val.Key,
Value: val.Value,
Expiry: int64(val.Expiry.Seconds()),
})
}
err = stream.Send(rsp)
if err == io.EOF {
return nil
}
if err != nil {
return errors.InternalServerError("go.micro.store", err.Error())
}
return nil
}

207
store/service/proto/store.micro.go Normal file
View File

@ -0,0 +1,207 @@
// Code generated by protoc-gen-micro. DO NOT EDIT.
// source: micro/go-micro/store/service/proto/store.proto
package go_micro_store
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 Store service
type StoreService interface {
Read(ctx context.Context, in *ReadRequest, opts ...client.CallOption) (*ReadResponse, error)
Write(ctx context.Context, in *WriteRequest, opts ...client.CallOption) (*WriteResponse, error)
Delete(ctx context.Context, in *DeleteRequest, opts ...client.CallOption) (*DeleteResponse, error)
Sync(ctx context.Context, in *SyncRequest, opts ...client.CallOption) (Store_SyncService, error)
}
type storeService struct {
c client.Client
name string
}
func NewStoreService(name string, c client.Client) StoreService {
if c == nil {
c = client.NewClient()
}
if len(name) == 0 {
name = "go.micro.store"
}
return &storeService{
c: c,
name: name,
}
}
func (c *storeService) Read(ctx context.Context, in *ReadRequest, opts ...client.CallOption) (*ReadResponse, error) {
req := c.c.NewRequest(c.name, "Store.Read", in)
out := new(ReadResponse)
err := c.c.Call(ctx, req, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *storeService) Write(ctx context.Context, in *WriteRequest, opts ...client.CallOption) (*WriteResponse, error) {
req := c.c.NewRequest(c.name, "Store.Write", in)
out := new(WriteResponse)
err := c.c.Call(ctx, req, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *storeService) Delete(ctx context.Context, in *DeleteRequest, opts ...client.CallOption) (*DeleteResponse, error) {
req := c.c.NewRequest(c.name, "Store.Delete", in)
out := new(DeleteResponse)
err := c.c.Call(ctx, req, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *storeService) Sync(ctx context.Context, in *SyncRequest, opts ...client.CallOption) (Store_SyncService, error) {
req := c.c.NewRequest(c.name, "Store.Sync", &SyncRequest{})
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 &storeServiceSync{stream}, nil
}
type Store_SyncService interface {
SendMsg(interface{}) error
RecvMsg(interface{}) error
Close() error
Recv() (*SyncResponse, error)
}
type storeServiceSync struct {
stream client.Stream
}
func (x *storeServiceSync) Close() error {
return x.stream.Close()
}
func (x *storeServiceSync) SendMsg(m interface{}) error {
return x.stream.Send(m)
}
func (x *storeServiceSync) RecvMsg(m interface{}) error {
return x.stream.Recv(m)
}
func (x *storeServiceSync) Recv() (*SyncResponse, error) {
m := new(SyncResponse)
err := x.stream.Recv(m)
if err != nil {
return nil, err
}
return m, nil
}
// Server API for Store service
type StoreHandler interface {
Read(context.Context, *ReadRequest, *ReadResponse) error
Write(context.Context, *WriteRequest, *WriteResponse) error
Delete(context.Context, *DeleteRequest, *DeleteResponse) error
Sync(context.Context, *SyncRequest, Store_SyncStream) error
}
func RegisterStoreHandler(s server.Server, hdlr StoreHandler, opts ...server.HandlerOption) error {
type store interface {
Read(ctx context.Context, in *ReadRequest, out *ReadResponse) error
Write(ctx context.Context, in *WriteRequest, out *WriteResponse) error
Delete(ctx context.Context, in *DeleteRequest, out *DeleteResponse) error
Sync(ctx context.Context, stream server.Stream) error
}
type Store struct {
store
}
h := &storeHandler{hdlr}
return s.Handle(s.NewHandler(&Store{h}, opts...))
}
type storeHandler struct {
StoreHandler
}
func (h *storeHandler) Read(ctx context.Context, in *ReadRequest, out *ReadResponse) error {
return h.StoreHandler.Read(ctx, in, out)
}
func (h *storeHandler) Write(ctx context.Context, in *WriteRequest, out *WriteResponse) error {
return h.StoreHandler.Write(ctx, in, out)
}
func (h *storeHandler) Delete(ctx context.Context, in *DeleteRequest, out *DeleteResponse) error {
return h.StoreHandler.Delete(ctx, in, out)
}
func (h *storeHandler) Sync(ctx context.Context, stream server.Stream) error {
m := new(SyncRequest)
if err := stream.Recv(m); err != nil {
return err
}
return h.StoreHandler.Sync(ctx, m, &storeSyncStream{stream})
}
type Store_SyncStream interface {
SendMsg(interface{}) error
RecvMsg(interface{}) error
Close() error
Send(*SyncResponse) error
}
type storeSyncStream struct {
stream server.Stream
}
func (x *storeSyncStream) Close() error {
return x.stream.Close()
}
func (x *storeSyncStream) SendMsg(m interface{}) error {
return x.stream.Send(m)
}
func (x *storeSyncStream) RecvMsg(m interface{}) error {
return x.stream.Recv(m)
}
func (x *storeSyncStream) Send(m *SyncResponse) error {
return x.stream.Send(m)
}

618
store/service/proto/store.pb.go Normal file
View File

@ -0,0 +1,618 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// source: micro/go-micro/store/service/proto/store.proto
package go_micro_store
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
type Record struct {
// key of the record
Key string `protobuf:"bytes,1,opt,name=key,proto3" json:"key,omitempty"`
// value in the record
Value []byte `protobuf:"bytes,2,opt,name=value,proto3" json:"value,omitempty"`
// timestamp in unix seconds
Expiry int64 `protobuf:"varint,3,opt,name=expiry,proto3" json:"expiry,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *Record) Reset() { *m = Record{} }
func (m *Record) String() string { return proto.CompactTextString(m) }
func (*Record) ProtoMessage() {}
func (*Record) Descriptor() ([]byte, []int) {
return fileDescriptor_f84ccc98e143ed3e, []int{0}
}
func (m *Record) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_Record.Unmarshal(m, b)
}
func (m *Record) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_Record.Marshal(b, m, deterministic)
}
func (m *Record) XXX_Merge(src proto.Message) {
xxx_messageInfo_Record.Merge(m, src)
}
func (m *Record) XXX_Size() int {
return xxx_messageInfo_Record.Size(m)
}
func (m *Record) XXX_DiscardUnknown() {
xxx_messageInfo_Record.DiscardUnknown(m)
}
var xxx_messageInfo_Record proto.InternalMessageInfo
func (m *Record) GetKey() string {
if m != nil {
return m.Key
}
return ""
}
func (m *Record) GetValue() []byte {
if m != nil {
return m.Value
}
return nil
}
func (m *Record) GetExpiry() int64 {
if m != nil {
return m.Expiry
}
return 0
}
type ReadRequest struct {
Keys []string `protobuf:"bytes,1,rep,name=keys,proto3" json:"keys,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *ReadRequest) Reset() { *m = ReadRequest{} }
func (m *ReadRequest) String() string { return proto.CompactTextString(m) }
func (*ReadRequest) ProtoMessage() {}
func (*ReadRequest) Descriptor() ([]byte, []int) {
return fileDescriptor_f84ccc98e143ed3e, []int{1}
}
func (m *ReadRequest) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_ReadRequest.Unmarshal(m, b)
}
func (m *ReadRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_ReadRequest.Marshal(b, m, deterministic)
}
func (m *ReadRequest) XXX_Merge(src proto.Message) {
xxx_messageInfo_ReadRequest.Merge(m, src)
}
func (m *ReadRequest) XXX_Size() int {
return xxx_messageInfo_ReadRequest.Size(m)
}
func (m *ReadRequest) XXX_DiscardUnknown() {
xxx_messageInfo_ReadRequest.DiscardUnknown(m)
}
var xxx_messageInfo_ReadRequest proto.InternalMessageInfo
func (m *ReadRequest) GetKeys() []string {
if m != nil {
return m.Keys
}
return nil
}
type ReadResponse struct {
Records []*Record `protobuf:"bytes,1,rep,name=records,proto3" json:"records,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *ReadResponse) Reset() { *m = ReadResponse{} }
func (m *ReadResponse) String() string { return proto.CompactTextString(m) }
func (*ReadResponse) ProtoMessage() {}
func (*ReadResponse) Descriptor() ([]byte, []int) {
return fileDescriptor_f84ccc98e143ed3e, []int{2}
}
func (m *ReadResponse) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_ReadResponse.Unmarshal(m, b)
}
func (m *ReadResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_ReadResponse.Marshal(b, m, deterministic)
}
func (m *ReadResponse) XXX_Merge(src proto.Message) {
xxx_messageInfo_ReadResponse.Merge(m, src)
}
func (m *ReadResponse) XXX_Size() int {
return xxx_messageInfo_ReadResponse.Size(m)
}
func (m *ReadResponse) XXX_DiscardUnknown() {
xxx_messageInfo_ReadResponse.DiscardUnknown(m)
}
var xxx_messageInfo_ReadResponse proto.InternalMessageInfo
func (m *ReadResponse) GetRecords() []*Record {
if m != nil {
return m.Records
}
return nil
}
type WriteRequest struct {
Records []*Record `protobuf:"bytes,2,rep,name=records,proto3" json:"records,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *WriteRequest) Reset() { *m = WriteRequest{} }
func (m *WriteRequest) String() string { return proto.CompactTextString(m) }
func (*WriteRequest) ProtoMessage() {}
func (*WriteRequest) Descriptor() ([]byte, []int) {
return fileDescriptor_f84ccc98e143ed3e, []int{3}
}
func (m *WriteRequest) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_WriteRequest.Unmarshal(m, b)
}
func (m *WriteRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_WriteRequest.Marshal(b, m, deterministic)
}
func (m *WriteRequest) XXX_Merge(src proto.Message) {
xxx_messageInfo_WriteRequest.Merge(m, src)
}
func (m *WriteRequest) XXX_Size() int {
return xxx_messageInfo_WriteRequest.Size(m)
}
func (m *WriteRequest) XXX_DiscardUnknown() {
xxx_messageInfo_WriteRequest.DiscardUnknown(m)
}
var xxx_messageInfo_WriteRequest proto.InternalMessageInfo
func (m *WriteRequest) GetRecords() []*Record {
if m != nil {
return m.Records
}
return nil
}
type WriteResponse struct {
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *WriteResponse) Reset() { *m = WriteResponse{} }
func (m *WriteResponse) String() string { return proto.CompactTextString(m) }
func (*WriteResponse) ProtoMessage() {}
func (*WriteResponse) Descriptor() ([]byte, []int) {
return fileDescriptor_f84ccc98e143ed3e, []int{4}
}
func (m *WriteResponse) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_WriteResponse.Unmarshal(m, b)
}
func (m *WriteResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_WriteResponse.Marshal(b, m, deterministic)
}
func (m *WriteResponse) XXX_Merge(src proto.Message) {
xxx_messageInfo_WriteResponse.Merge(m, src)
}
func (m *WriteResponse) XXX_Size() int {
return xxx_messageInfo_WriteResponse.Size(m)
}
func (m *WriteResponse) XXX_DiscardUnknown() {
xxx_messageInfo_WriteResponse.DiscardUnknown(m)
}
var xxx_messageInfo_WriteResponse proto.InternalMessageInfo
type DeleteRequest struct {
Keys []string `protobuf:"bytes,1,rep,name=keys,proto3" json:"keys,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *DeleteRequest) Reset() { *m = DeleteRequest{} }
func (m *DeleteRequest) String() string { return proto.CompactTextString(m) }
func (*DeleteRequest) ProtoMessage() {}
func (*DeleteRequest) Descriptor() ([]byte, []int) {
return fileDescriptor_f84ccc98e143ed3e, []int{5}
}
func (m *DeleteRequest) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_DeleteRequest.Unmarshal(m, b)
}
func (m *DeleteRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_DeleteRequest.Marshal(b, m, deterministic)
}
func (m *DeleteRequest) XXX_Merge(src proto.Message) {
xxx_messageInfo_DeleteRequest.Merge(m, src)
}
func (m *DeleteRequest) XXX_Size() int {
return xxx_messageInfo_DeleteRequest.Size(m)
}
func (m *DeleteRequest) XXX_DiscardUnknown() {
xxx_messageInfo_DeleteRequest.DiscardUnknown(m)
}
var xxx_messageInfo_DeleteRequest proto.InternalMessageInfo
func (m *DeleteRequest) GetKeys() []string {
if m != nil {
return m.Keys
}
return nil
}
type DeleteResponse struct {
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *DeleteResponse) Reset() { *m = DeleteResponse{} }
func (m *DeleteResponse) String() string { return proto.CompactTextString(m) }
func (*DeleteResponse) ProtoMessage() {}
func (*DeleteResponse) Descriptor() ([]byte, []int) {
return fileDescriptor_f84ccc98e143ed3e, []int{6}
}
func (m *DeleteResponse) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_DeleteResponse.Unmarshal(m, b)
}
func (m *DeleteResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_DeleteResponse.Marshal(b, m, deterministic)
}
func (m *DeleteResponse) XXX_Merge(src proto.Message) {
xxx_messageInfo_DeleteResponse.Merge(m, src)
}
func (m *DeleteResponse) XXX_Size() int {
return xxx_messageInfo_DeleteResponse.Size(m)
}
func (m *DeleteResponse) XXX_DiscardUnknown() {
xxx_messageInfo_DeleteResponse.DiscardUnknown(m)
}
var xxx_messageInfo_DeleteResponse proto.InternalMessageInfo
type SyncRequest struct {
// optional key
Key string `protobuf:"bytes,1,opt,name=key,proto3" json:"key,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *SyncRequest) Reset() { *m = SyncRequest{} }
func (m *SyncRequest) String() string { return proto.CompactTextString(m) }
func (*SyncRequest) ProtoMessage() {}
func (*SyncRequest) Descriptor() ([]byte, []int) {
return fileDescriptor_f84ccc98e143ed3e, []int{7}
}
func (m *SyncRequest) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_SyncRequest.Unmarshal(m, b)
}
func (m *SyncRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_SyncRequest.Marshal(b, m, deterministic)
}
func (m *SyncRequest) XXX_Merge(src proto.Message) {
xxx_messageInfo_SyncRequest.Merge(m, src)
}
func (m *SyncRequest) XXX_Size() int {
return xxx_messageInfo_SyncRequest.Size(m)
}
func (m *SyncRequest) XXX_DiscardUnknown() {
xxx_messageInfo_SyncRequest.DiscardUnknown(m)
}
var xxx_messageInfo_SyncRequest proto.InternalMessageInfo
func (m *SyncRequest) GetKey() string {
if m != nil {
return m.Key
}
return ""
}
type SyncResponse struct {
Records []*Record `protobuf:"bytes,1,rep,name=records,proto3" json:"records,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *SyncResponse) Reset() { *m = SyncResponse{} }
func (m *SyncResponse) String() string { return proto.CompactTextString(m) }
func (*SyncResponse) ProtoMessage() {}
func (*SyncResponse) Descriptor() ([]byte, []int) {
return fileDescriptor_f84ccc98e143ed3e, []int{8}
}
func (m *SyncResponse) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_SyncResponse.Unmarshal(m, b)
}
func (m *SyncResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_SyncResponse.Marshal(b, m, deterministic)
}
func (m *SyncResponse) XXX_Merge(src proto.Message) {
xxx_messageInfo_SyncResponse.Merge(m, src)
}
func (m *SyncResponse) XXX_Size() int {
return xxx_messageInfo_SyncResponse.Size(m)
}
func (m *SyncResponse) XXX_DiscardUnknown() {
xxx_messageInfo_SyncResponse.DiscardUnknown(m)
}
var xxx_messageInfo_SyncResponse proto.InternalMessageInfo
func (m *SyncResponse) GetRecords() []*Record {
if m != nil {
return m.Records
}
return nil
}
func init() {
proto.RegisterType((*Record)(nil), "go.micro.store.Record")
proto.RegisterType((*ReadRequest)(nil), "go.micro.store.ReadRequest")
proto.RegisterType((*ReadResponse)(nil), "go.micro.store.ReadResponse")
proto.RegisterType((*WriteRequest)(nil), "go.micro.store.WriteRequest")
proto.RegisterType((*WriteResponse)(nil), "go.micro.store.WriteResponse")
proto.RegisterType((*DeleteRequest)(nil), "go.micro.store.DeleteRequest")
proto.RegisterType((*DeleteResponse)(nil), "go.micro.store.DeleteResponse")
proto.RegisterType((*SyncRequest)(nil), "go.micro.store.SyncRequest")
proto.RegisterType((*SyncResponse)(nil), "go.micro.store.SyncResponse")
}
func init() {
proto.RegisterFile("micro/go-micro/store/service/proto/store.proto", fileDescriptor_f84ccc98e143ed3e)
}
var fileDescriptor_f84ccc98e143ed3e = []byte{
// 333 bytes of a gzipped FileDescriptorProto
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0x92, 0x6c, 0xf8, 0x3a, 0x21, 0x1c, 0xc3, 0x3f, 0xa1, 0x1e, 0xd7, 0xb2, 0xf6, 0x64, 0x10, 0xee,
0xc7, 0x0b, 0x75, 0x36, 0x56, 0xc8, 0xa4, 0xc3, 0xab, 0x88, 0x53, 0x2a, 0x5e, 0xa9, 0x38, 0xd4,
0x7f, 0xe7, 0xf0, 0x1f, 0xba, 0xb9, 0x83, 0x0e, 0xe1, 0x5f, 0x43, 0xf7, 0x81, 0x56, 0xf4, 0xe3,
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0x41, 0x4f, 0x46, 0xd5, 0x82, 0xbf, 0x2e, 0x3b, 0xf9, 0xaa, 0x43, 0x73, 0x2a, 0x3b, 0x78, 0x0f,
0x0d, 0x09, 0x0e, 0x4f, 0xcd, 0x91, 0x92, 0xf8, 0xf0, 0xec, 0x70, 0x33, 0xcf, 0x5b, 0xc3, 0x27,
0x68, 0xaa, 0xcd, 0xd1, 0x10, 0x56, 0x91, 0x0e, 0xcf, 0x8f, 0x74, 0x4b, 0x9f, 0x17, 0x70, 0x34,
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0x03, 0x00, 0x00, 0xff, 0xff, 0x30, 0xc8, 0x99, 0x52, 0x0d, 0x03, 0x00, 0x00,
}
// 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
// StoreClient is the client API for Store service.
//
// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://godoc.org/google.golang.org/grpc#ClientConn.NewStream.
type StoreClient interface {
Read(ctx context.Context, in *ReadRequest, opts ...grpc.CallOption) (*ReadResponse, error)
Write(ctx context.Context, in *WriteRequest, opts ...grpc.CallOption) (*WriteResponse, error)
Delete(ctx context.Context, in *DeleteRequest, opts ...grpc.CallOption) (*DeleteResponse, error)
Sync(ctx context.Context, in *SyncRequest, opts ...grpc.CallOption) (Store_SyncClient, error)
}
type storeClient struct {
cc *grpc.ClientConn
}
func NewStoreClient(cc *grpc.ClientConn) StoreClient {
return &storeClient{cc}
}
func (c *storeClient) Read(ctx context.Context, in *ReadRequest, opts ...grpc.CallOption) (*ReadResponse, error) {
out := new(ReadResponse)
err := c.cc.Invoke(ctx, "/go.micro.store.Store/Read", in, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *storeClient) Write(ctx context.Context, in *WriteRequest, opts ...grpc.CallOption) (*WriteResponse, error) {
out := new(WriteResponse)
err := c.cc.Invoke(ctx, "/go.micro.store.Store/Write", in, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *storeClient) Delete(ctx context.Context, in *DeleteRequest, opts ...grpc.CallOption) (*DeleteResponse, error) {
out := new(DeleteResponse)
err := c.cc.Invoke(ctx, "/go.micro.store.Store/Delete", in, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *storeClient) Sync(ctx context.Context, in *SyncRequest, opts ...grpc.CallOption) (Store_SyncClient, error) {
stream, err := c.cc.NewStream(ctx, &_Store_serviceDesc.Streams[0], "/go.micro.store.Store/Sync", opts...)
if err != nil {
return nil, err
}
x := &storeSyncClient{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 Store_SyncClient interface {
Recv() (*SyncResponse, error)
grpc.ClientStream
}
type storeSyncClient struct {
grpc.ClientStream
}
func (x *storeSyncClient) Recv() (*SyncResponse, error) {
m := new(SyncResponse)
if err := x.ClientStream.RecvMsg(m); err != nil {
return nil, err
}
return m, nil
}
// StoreServer is the server API for Store service.
type StoreServer interface {
Read(context.Context, *ReadRequest) (*ReadResponse, error)
Write(context.Context, *WriteRequest) (*WriteResponse, error)
Delete(context.Context, *DeleteRequest) (*DeleteResponse, error)
Sync(*SyncRequest, Store_SyncServer) error
}
func RegisterStoreServer(s *grpc.Server, srv StoreServer) {
s.RegisterService(&_Store_serviceDesc, srv)
}
func _Store_Read_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(ReadRequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(StoreServer).Read(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/go.micro.store.Store/Read",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(StoreServer).Read(ctx, req.(*ReadRequest))
}
return interceptor(ctx, in, info, handler)
}
func _Store_Write_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(WriteRequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(StoreServer).Write(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/go.micro.store.Store/Write",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(StoreServer).Write(ctx, req.(*WriteRequest))
}
return interceptor(ctx, in, info, handler)
}
func _Store_Delete_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(DeleteRequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(StoreServer).Delete(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/go.micro.store.Store/Delete",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(StoreServer).Delete(ctx, req.(*DeleteRequest))
}
return interceptor(ctx, in, info, handler)
}
func _Store_Sync_Handler(srv interface{}, stream grpc.ServerStream) error {
m := new(SyncRequest)
if err := stream.RecvMsg(m); err != nil {
return err
}
return srv.(StoreServer).Sync(m, &storeSyncServer{stream})
}
type Store_SyncServer interface {
Send(*SyncResponse) error
grpc.ServerStream
}
type storeSyncServer struct {
grpc.ServerStream
}
func (x *storeSyncServer) Send(m *SyncResponse) error {
return x.ServerStream.SendMsg(m)
}
var _Store_serviceDesc = grpc.ServiceDesc{
ServiceName: "go.micro.store.Store",
HandlerType: (*StoreServer)(nil),
Methods: []grpc.MethodDesc{
{
MethodName: "Read",
Handler: _Store_Read_Handler,
},
{
MethodName: "Write",
Handler: _Store_Write_Handler,
},
{
MethodName: "Delete",
Handler: _Store_Delete_Handler,
},
},
Streams: []grpc.StreamDesc{
{
StreamName: "Sync",
Handler: _Store_Sync_Handler,
ServerStreams: true,
},
},
Metadata: "micro/go-micro/store/service/proto/store.proto",
}

48
store/service/proto/store.proto Normal file
View File

@ -0,0 +1,48 @@
syntax = "proto3";
package go.micro.store;
service Store {
rpc Read(ReadRequest) returns (ReadResponse) {};
rpc Write(WriteRequest) returns (WriteResponse) {};
rpc Delete(DeleteRequest) returns (DeleteResponse) {};
rpc Sync(SyncRequest) returns (stream SyncResponse) {};
}
message Record {
// key of the record
string key = 1;
// value in the record
bytes value = 2;
// timestamp in unix seconds
int64 expiry = 3;
}
message ReadRequest {
repeated string keys = 1;
}
message ReadResponse {
repeated Record records = 1;
}
message WriteRequest {
repeated Record records = 2;
}
message WriteResponse {}
message DeleteRequest {
repeated string keys = 1;
}
message DeleteResponse {}
message SyncRequest {
// optional key
string key = 1;
}
message SyncResponse {
repeated Record records = 1;
}

119
store/service/service.go Normal file
View File

@ -0,0 +1,119 @@
// Package service implements the store service interface
package service
import (
"context"
"io"
"time"
"github.com/micro/go-micro/client"
"github.com/micro/go-micro/config/options"
"github.com/micro/go-micro/store"
pb "github.com/micro/go-micro/store/service/proto"
)
type serviceStore struct {
options.Options
// Addresses of the nodes
Nodes []string
// store service client
Client pb.StoreService
}
// Sync all the known records
func (s *serviceStore) Sync() ([]*store.Record, error) {
stream, err := s.Client.Sync(context.Background(), &pb.SyncRequest{}, client.WithAddress(s.Nodes...))
if err != nil {
return nil, err
}
defer stream.Close()
var records []*store.Record
for {
rsp, err := stream.Recv()
if err == io.EOF {
break
}
if err != nil {
return records, err
}
for _, record := range rsp.Records {
records = append(records, &store.Record{
Key: record.Key,
Value: record.Value,
Expiry: time.Duration(record.Expiry) * time.Second,
})
}
}
return records, nil
}
// Read a record with key
func (s *serviceStore) Read(keys ...string) ([]*store.Record, error) {
rsp, err := s.Client.Read(context.Background(), &pb.ReadRequest{
Keys: keys,
}, client.WithAddress(s.Nodes...))
if err != nil {
return nil, err
}
var records []*store.Record
for _, val := range rsp.Records {
records = append(records, &store.Record{
Key: val.Key,
Value: val.Value,
Expiry: time.Duration(val.Expiry) * time.Second,
})
}
return records, nil
}
// Write a record
func (s *serviceStore) Write(recs ...*store.Record) error {
var records []*pb.Record
for _, record := range recs {
records = append(records, &pb.Record{
Key: record.Key,
Value: record.Value,
Expiry: int64(record.Expiry.Seconds()),
})
}
_, err := s.Client.Write(context.Background(), &pb.WriteRequest{
Records: records,
}, client.WithAddress(s.Nodes...))
return err
}
// Delete a record with key
func (s *serviceStore) Delete(keys ...string) error {
_, err := s.Client.Delete(context.Background(), &pb.DeleteRequest{
Keys: keys,
}, client.WithAddress(s.Nodes...))
return err
}
// NewStore returns a new store service implementation
func NewStore(opts ...options.Option) store.Store {
options := options.NewOptions(opts...)
var nodes []string
n, ok := options.Values().Get("store.nodes")
if ok {
nodes = n.([]string)
}
service := &serviceStore{
Options: options,
Nodes: nodes,
Client: pb.NewStoreService("go.micro.store", client.DefaultClient),
}
return service
}

6
store/store.go
View File

@ -19,11 +19,11 @@ type Store interface {
// Sync all the known records
Sync() ([]*Record, error)
// Read a record with key
Read(key string) (*Record, error)
Read(keys ...string) ([]*Record, error)
// Write a record
Write(r *Record) error
Write(recs ...*Record) error
// Delete a record with key
Delete(key string) error
Delete(keys ...string) error
}
// Record represents a data record

6
sync/map.go
View File

@ -39,8 +39,12 @@ func (m *syncMap) Read(key, val interface{}) error {
return err
}
if len(kval) == 0 {
return store.ErrNotFound
}
// decode value
return json.Unmarshal(kval.Value, val)
return json.Unmarshal(kval[0].Value, val)
}
func (m *syncMap) Write(key, val interface{}) error {