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Merge pull request #1656 from micro/client-cache

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Client Cache
This commit is contained in:
ben-toogood 2020-05-26 15:38:30 +01:00 committed by GitHub
commit be5a10a4d4
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GPG Key ID: 4AEE18F83AFDEB23
18 changed files with 1454 additions and 1179 deletions
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40
auth/service/service.go
View File

@ -5,7 +5,6 @@ import (
"fmt"
"sort"
"strings"
"sync"
"time"
"github.com/micro/go-micro/v2/auth"
@ -23,9 +22,6 @@ type svc struct {
auth pb.AuthService
rule pb.RulesService
jwt token.Provider
rules []*pb.Rule
sync.Mutex
}
func (s *svc) String() string {
@ -53,8 +49,6 @@ func (s *svc) Init(opts ...auth.Option) {
}
func (s *svc) Options() auth.Options {
s.Lock()
defer s.Unlock()
return s.options
}
@ -110,9 +104,6 @@ func (s *svc) Revoke(role string, res *auth.Resource) error {
// Verify an account has access to a resource
func (s *svc) Verify(acc *auth.Account, res *auth.Resource) error {
// load the rules if none are loaded
s.loadRulesIfEmpty()
// set the namespace on the resource
if len(res.Namespace) == 0 {
res.Namespace = s.Options().Namespace
@ -230,11 +221,14 @@ func accessForRule(rule *pb.Rule, acc *auth.Account, res *auth.Resource) pb.Acce
// listRules gets all the rules from the store which match the filters.
// filters are namespace, type, name and then endpoint.
func (s *svc) listRules(filters ...string) []*pb.Rule {
s.Lock()
defer s.Unlock()
// load rules using the client cache
allRules, err := s.loadRules()
if err != nil {
return []*pb.Rule{}
}
var rules []*pb.Rule
for _, r := range s.rules {
for _, r := range allRules {
if len(filters) > 0 && r.Resource.Namespace != filters[0] {
continue
}
@ -260,27 +254,15 @@ func (s *svc) listRules(filters ...string) []*pb.Rule {
}
// loadRules retrieves the rules from the auth service
func (s *svc) loadRules() {
rsp, err := s.rule.List(context.TODO(), &pb.ListRequest{})
s.Lock()
defer s.Unlock()
func (s *svc) loadRules() ([]*pb.Rule, error) {
rsp, err := s.rule.List(context.TODO(), &pb.ListRequest{}, client.WithCache(time.Minute))
if err != nil {
log.Errorf("Error listing rules: %v", err)
return
log.Debugf("Error listing rules: %v", err)
return nil, err
}
s.rules = rsp.Rules
}
func (s *svc) loadRulesIfEmpty() {
s.Lock()
rules := s.rules
s.Unlock()
if len(rules) == 0 {
s.loadRules()
}
return rsp.Rules, nil
}
func serializeToken(t *pb.Token) *auth.Token {

26
auth/service/sevice_test.go
View File

@ -1,26 +0,0 @@
package service
import (
"testing"
pb "github.com/micro/go-micro/v2/auth/service/proto"
)
func TestListRulesSorting(t *testing.T) {
s := &svc{
rules: []*pb.Rule{
&pb.Rule{Priority: 1},
&pb.Rule{Priority: 3},
&pb.Rule{Priority: 2},
},
}
var priorities []int32
for _, r := range s.listRules() {
priorities = append(priorities, r.Priority)
}
if priorities[0] != 1 || priorities[1] != 2 || priorities[2] != 3 {
t.Errorf("Incorrect Rule Sequence")
}
}

66
client/cache.go Normal file
View File

@ -0,0 +1,66 @@
package client
import (
"context"
"encoding/json"
"fmt"
"hash/fnv"
"time"
"github.com/micro/go-micro/v2/metadata"
cache "github.com/patrickmn/go-cache"
)
// NewCache returns an initialised cache.
func NewCache() *Cache {
return &Cache{
cache: cache.New(cache.NoExpiration, 30*time.Second),
}
}
// Cache for responses
type Cache struct {
cache *cache.Cache
}
// Get a response from the cache
func (c *Cache) Get(ctx context.Context, req *Request) (interface{}, bool) {
return c.cache.Get(key(ctx, req))
}
// Set a response in the cache
func (c *Cache) Set(ctx context.Context, req *Request, rsp interface{}, expiry time.Duration) {
c.cache.Set(key(ctx, req), rsp, expiry)
}
// List the key value pairs in the cache
func (c *Cache) List() map[string]string {
items := c.cache.Items()
rsp := make(map[string]string, len(items))
for k, v := range items {
bytes, _ := json.Marshal(v.Object)
rsp[k] = string(bytes)
}
return rsp
}
// key returns a hash for the context and request
func key(ctx context.Context, req *Request) string {
md, _ := metadata.FromContext(ctx)
bytes, _ := json.Marshal(map[string]interface{}{
"metadata": md,
"request": map[string]interface{}{
"service": (*req).Service(),
"endpoint": (*req).Endpoint(),
"method": (*req).Method(),
"body": (*req).Body(),
},
})
h := fnv.New64()
h.Write(bytes)
return fmt.Sprintf("%x", h.Sum(nil))
}

76
client/cache_test.go Normal file
View File

@ -0,0 +1,76 @@
package client
import (
"context"
"testing"
"time"
"github.com/micro/go-micro/v2/metadata"
)
func TestCache(t *testing.T) {
ctx := context.TODO()
req := NewRequest("go.micro.service.foo", "Foo.Bar", nil)
t.Run("CacheMiss", func(t *testing.T) {
if _, ok := NewCache().Get(ctx, &req); ok {
t.Errorf("Expected to get no result from Get")
}
})
t.Run("CacheHit", func(t *testing.T) {
c := NewCache()
rsp := "theresponse"
c.Set(ctx, &req, rsp, time.Minute)
if res, ok := c.Get(ctx, &req); !ok {
t.Errorf("Expected a result, got nothing")
} else if res != rsp {
t.Errorf("Expected '%v' result, got '%v'", rsp, res)
}
})
}
func TestCacheKey(t *testing.T) {
ctx := context.TODO()
req1 := NewRequest("go.micro.service.foo", "Foo.Bar", nil)
req2 := NewRequest("go.micro.service.foo", "Foo.Baz", nil)
req3 := NewRequest("go.micro.service.foo", "Foo.Baz", "customquery")
t.Run("IdenticalRequests", func(t *testing.T) {
key1 := key(ctx, &req1)
key2 := key(ctx, &req1)
if key1 != key2 {
t.Errorf("Expected the keys to match for identical requests and context")
}
})
t.Run("DifferentRequestEndpoints", func(t *testing.T) {
key1 := key(ctx, &req1)
key2 := key(ctx, &req2)
if key1 == key2 {
t.Errorf("Expected the keys to differ for different request endpoints")
}
})
t.Run("DifferentRequestBody", func(t *testing.T) {
key1 := key(ctx, &req2)
key2 := key(ctx, &req3)
if key1 == key2 {
t.Errorf("Expected the keys to differ for different request bodies")
}
})
t.Run("DifferentMetadata", func(t *testing.T) {
mdCtx := metadata.Set(context.TODO(), "foo", "bar")
key1 := key(mdCtx, &req1)
key2 := key(ctx, &req1)
if key1 == key2 {
t.Errorf("Expected the keys to differ for different metadata")
}
})
}

14
client/options.go
View File

@ -29,6 +29,9 @@ type Options struct {
PoolSize int
PoolTTL time.Duration
// Response cache
Cache *Cache
// Middleware for client
Wrappers []Wrapper
@ -59,6 +62,8 @@ type CallOptions struct {
StreamTimeout time.Duration
// Use the services own auth token
ServiceToken bool
// Duration to cache the response for
CacheExpiry time.Duration
// Middleware for low level call func
CallWrappers []CallWrapper
@ -91,6 +96,7 @@ type RequestOptions struct {
func NewOptions(options ...Option) Options {
opts := Options{
Cache: NewCache(),
Context: context.Background(),
ContentType: DefaultContentType,
Codecs: make(map[string]codec.NewCodec),
@ -324,6 +330,14 @@ func WithServiceToken() CallOption {
}
}
// WithCache is a CallOption which sets the duration the response
// shoull be cached for
func WithCache(c time.Duration) CallOption {
return func(o *CallOptions) {
o.CacheExpiry = c
}
}
func WithMessageContentType(ct string) MessageOption {
return func(o *MessageOptions) {
o.ContentType = ct

8
config/cmd/cmd.go
View File

@ -471,9 +471,13 @@ func (c *cmd) Before(ctx *cli.Context) error {
var serverOpts []server.Option
var clientOpts []client.Option
// setup a client to use when calling the runtime
// setup a client to use when calling the runtime. It is important the auth client is wrapped
// after the cache client since the wrappers are applied in reverse order and the cache will use
// some of the headers set by the auth client.
authFn := func() auth.Auth { return *c.opts.Auth }
microClient := wrapper.AuthClient(authFn, grpc.NewClient())
cacheFn := func() *client.Cache { return (*c.opts.Client).Options().Cache }
microClient := wrapper.CacheClient(cacheFn, grpc.NewClient())
microClient = wrapper.AuthClient(authFn, microClient)
// Set the store
if name := ctx.String("store"); len(name) > 0 {

12
debug/service/handler/debug.go
View File

@ -5,6 +5,7 @@ import (
"context"
"time"
"github.com/micro/go-micro/v2/client"
"github.com/micro/go-micro/v2/debug/log"
proto "github.com/micro/go-micro/v2/debug/service/proto"
"github.com/micro/go-micro/v2/debug/stats"
@ -13,11 +14,12 @@ import (
)
// NewHandler returns an instance of the Debug Handler
func NewHandler() *Debug {
func NewHandler(c client.Client) *Debug {
return &Debug{
log: log.DefaultLog,
stats: stats.DefaultStats,
trace: trace.DefaultTracer,
cache: c.Options().Cache,
}
}
@ -30,6 +32,8 @@ type Debug struct {
stats stats.Stats
// the tracer
trace trace.Tracer
// the cache
cache *client.Cache
}
func (d *Debug) Health(ctx context.Context, req *proto.HealthRequest, rsp *proto.HealthResponse) error {
@ -164,3 +168,9 @@ func (d *Debug) Log(ctx context.Context, stream server.Stream) error {
return nil
}
// Cache returns all the key value pairs in the client cache
func (d *Debug) Cache(ctx context.Context, req *proto.CacheRequest, rsp *proto.CacheResponse) error {
rsp.Values = d.cache.List()
return nil
}

190
debug/service/proto/debug.pb.go
View File

@ -582,6 +582,76 @@ func (m *Span) GetType() SpanType {
return SpanType_INBOUND
}
type CacheRequest struct {
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *CacheRequest) Reset() { *m = CacheRequest{} }
func (m *CacheRequest) String() string { return proto.CompactTextString(m) }
func (*CacheRequest) ProtoMessage() {}
func (*CacheRequest) Descriptor() ([]byte, []int) {
return fileDescriptor_df91f41a5db378e6, []int{9}
}
func (m *CacheRequest) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_CacheRequest.Unmarshal(m, b)
}
func (m *CacheRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_CacheRequest.Marshal(b, m, deterministic)
}
func (m *CacheRequest) XXX_Merge(src proto.Message) {
xxx_messageInfo_CacheRequest.Merge(m, src)
}
func (m *CacheRequest) XXX_Size() int {
return xxx_messageInfo_CacheRequest.Size(m)
}
func (m *CacheRequest) XXX_DiscardUnknown() {
xxx_messageInfo_CacheRequest.DiscardUnknown(m)
}
var xxx_messageInfo_CacheRequest proto.InternalMessageInfo
type CacheResponse struct {
Values map[string]string `protobuf:"bytes,1,rep,name=values,proto3" json:"values,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 *CacheResponse) Reset() { *m = CacheResponse{} }
func (m *CacheResponse) String() string { return proto.CompactTextString(m) }
func (*CacheResponse) ProtoMessage() {}
func (*CacheResponse) Descriptor() ([]byte, []int) {
return fileDescriptor_df91f41a5db378e6, []int{10}
}
func (m *CacheResponse) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_CacheResponse.Unmarshal(m, b)
}
func (m *CacheResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_CacheResponse.Marshal(b, m, deterministic)
}
func (m *CacheResponse) XXX_Merge(src proto.Message) {
xxx_messageInfo_CacheResponse.Merge(m, src)
}
func (m *CacheResponse) XXX_Size() int {
return xxx_messageInfo_CacheResponse.Size(m)
}
func (m *CacheResponse) XXX_DiscardUnknown() {
xxx_messageInfo_CacheResponse.DiscardUnknown(m)
}
var xxx_messageInfo_CacheResponse proto.InternalMessageInfo
func (m *CacheResponse) GetValues() map[string]string {
if m != nil {
return m.Values
}
return nil
}
func init() {
proto.RegisterEnum("SpanType", SpanType_name, SpanType_value)
proto.RegisterType((*HealthRequest)(nil), "HealthRequest")
@ -595,50 +665,56 @@ func init() {
proto.RegisterType((*TraceResponse)(nil), "TraceResponse")
proto.RegisterType((*Span)(nil), "Span")
proto.RegisterMapType((map[string]string)(nil), "Span.MetadataEntry")
proto.RegisterType((*CacheRequest)(nil), "CacheRequest")
proto.RegisterType((*CacheResponse)(nil), "CacheResponse")
proto.RegisterMapType((map[string]string)(nil), "CacheResponse.ValuesEntry")
}
func init() { proto.RegisterFile("debug/service/proto/debug.proto", fileDescriptor_df91f41a5db378e6) }
var fileDescriptor_df91f41a5db378e6 = []byte{
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}
// Reference imports to suppress errors if they are not otherwise used.
@ -657,6 +733,7 @@ type DebugClient interface {
Health(ctx context.Context, in *HealthRequest, opts ...grpc.CallOption) (*HealthResponse, error)
Stats(ctx context.Context, in *StatsRequest, opts ...grpc.CallOption) (*StatsResponse, error)
Trace(ctx context.Context, in *TraceRequest, opts ...grpc.CallOption) (*TraceResponse, error)
Cache(ctx context.Context, in *CacheRequest, opts ...grpc.CallOption) (*CacheResponse, error)
}
type debugClient struct {
@ -726,12 +803,22 @@ func (c *debugClient) Trace(ctx context.Context, in *TraceRequest, opts ...grpc.
return out, nil
}
func (c *debugClient) Cache(ctx context.Context, in *CacheRequest, opts ...grpc.CallOption) (*CacheResponse, error) {
out := new(CacheResponse)
err := c.cc.Invoke(ctx, "/Debug/Cache", in, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
// DebugServer is the server API for Debug service.
type DebugServer interface {
Log(*LogRequest, Debug_LogServer) error
Health(context.Context, *HealthRequest) (*HealthResponse, error)
Stats(context.Context, *StatsRequest) (*StatsResponse, error)
Trace(context.Context, *TraceRequest) (*TraceResponse, error)
Cache(context.Context, *CacheRequest) (*CacheResponse, error)
}
// UnimplementedDebugServer can be embedded to have forward compatible implementations.
@ -750,6 +837,9 @@ func (*UnimplementedDebugServer) Stats(ctx context.Context, req *StatsRequest) (
func (*UnimplementedDebugServer) Trace(ctx context.Context, req *TraceRequest) (*TraceResponse, error) {
return nil, status.Errorf(codes.Unimplemented, "method Trace not implemented")
}
func (*UnimplementedDebugServer) Cache(ctx context.Context, req *CacheRequest) (*CacheResponse, error) {
return nil, status.Errorf(codes.Unimplemented, "method Cache not implemented")
}
func RegisterDebugServer(s *grpc.Server, srv DebugServer) {
s.RegisterService(&_Debug_serviceDesc, srv)
@ -830,6 +920,24 @@ func _Debug_Trace_Handler(srv interface{}, ctx context.Context, dec func(interfa
return interceptor(ctx, in, info, handler)
}
func _Debug_Cache_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(CacheRequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(DebugServer).Cache(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/Debug/Cache",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(DebugServer).Cache(ctx, req.(*CacheRequest))
}
return interceptor(ctx, in, info, handler)
}
var _Debug_serviceDesc = grpc.ServiceDesc{
ServiceName: "Debug",
HandlerType: (*DebugServer)(nil),
@ -846,6 +954,10 @@ var _Debug_serviceDesc = grpc.ServiceDesc{
MethodName: "Trace",
Handler: _Debug_Trace_Handler,
},
{
MethodName: "Cache",
Handler: _Debug_Cache_Handler,
},
},
Streams: []grpc.StreamDesc{
{

17
debug/service/proto/debug.pb.micro.go
View File

@ -46,6 +46,7 @@ type DebugService interface {
Health(ctx context.Context, in *HealthRequest, opts ...client.CallOption) (*HealthResponse, error)
Stats(ctx context.Context, in *StatsRequest, opts ...client.CallOption) (*StatsResponse, error)
Trace(ctx context.Context, in *TraceRequest, opts ...client.CallOption) (*TraceResponse, error)
Cache(ctx context.Context, in *CacheRequest, opts ...client.CallOption) (*CacheResponse, error)
}
type debugService struct {
@ -139,6 +140,16 @@ func (c *debugService) Trace(ctx context.Context, in *TraceRequest, opts ...clie
return out, nil
}
func (c *debugService) Cache(ctx context.Context, in *CacheRequest, opts ...client.CallOption) (*CacheResponse, error) {
req := c.c.NewRequest(c.name, "Debug.Cache", in)
out := new(CacheResponse)
err := c.c.Call(ctx, req, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
// Server API for Debug service
type DebugHandler interface {
@ -146,6 +157,7 @@ type DebugHandler interface {
Health(context.Context, *HealthRequest, *HealthResponse) error
Stats(context.Context, *StatsRequest, *StatsResponse) error
Trace(context.Context, *TraceRequest, *TraceResponse) error
Cache(context.Context, *CacheRequest, *CacheResponse) error
}
func RegisterDebugHandler(s server.Server, hdlr DebugHandler, opts ...server.HandlerOption) error {
@ -154,6 +166,7 @@ func RegisterDebugHandler(s server.Server, hdlr DebugHandler, opts ...server.Han
Health(ctx context.Context, in *HealthRequest, out *HealthResponse) error
Stats(ctx context.Context, in *StatsRequest, out *StatsResponse) error
Trace(ctx context.Context, in *TraceRequest, out *TraceResponse) error
Cache(ctx context.Context, in *CacheRequest, out *CacheResponse) error
}
type Debug struct {
debug
@ -217,3 +230,7 @@ func (h *debugHandler) Stats(ctx context.Context, in *StatsRequest, out *StatsRe
func (h *debugHandler) Trace(ctx context.Context, in *TraceRequest, out *TraceResponse) error {
return h.DebugHandler.Trace(ctx, in, out)
}
func (h *debugHandler) Cache(ctx context.Context, in *CacheRequest, out *CacheResponse) error {
return h.DebugHandler.Cache(ctx, in, out)
}

13
debug/service/proto/debug.proto
View File

@ -1,10 +1,11 @@
syntax = "proto3";
service Debug {
rpc Log(LogRequest) returns (stream Record) {};
rpc Health(HealthRequest) returns (HealthResponse) {};
rpc Stats(StatsRequest) returns (StatsResponse) {};
rpc Log(LogRequest) returns (stream Record) {};
rpc Health(HealthRequest) returns (HealthResponse) {};
rpc Stats(StatsRequest) returns (StatsResponse) {};
rpc Trace(TraceRequest) returns (TraceResponse) {};
rpc Cache(CacheRequest) returns (CacheResponse) {};
}
message HealthRequest {
@ -97,3 +98,9 @@ message Span {
map<string,string> metadata = 7;
SpanType type = 8;
}
message CacheRequest {}
message CacheResponse {
map<string, string> values = 1;
}

552
server/proto/server.pb.go
View File

@ -1,350 +1,324 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.22.0
// protoc v3.6.1
// source: github.com/micro/go-micro/server/proto/server.proto
// source: server/proto/server.proto
package go_micro_server
import (
context "context"
fmt "fmt"
proto "github.com/golang/protobuf/proto"
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
reflect "reflect"
sync "sync"
grpc "google.golang.org/grpc"
codes "google.golang.org/grpc/codes"
status "google.golang.org/grpc/status"
math "math"
)
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)
)
// 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 that a sufficiently up-to-date version
// of the legacy proto package is being used.
const _ = proto.ProtoPackageIsVersion4
// 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 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"`
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"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (x *HandleRequest) Reset() {
*x = HandleRequest{}
if protoimpl.UnsafeEnabled {
mi := &file_github_com_micro_go_micro_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_github_com_micro_go_micro_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 (m *HandleRequest) Reset() { *m = HandleRequest{} }
func (m *HandleRequest) String() string { return proto.CompactTextString(m) }
func (*HandleRequest) ProtoMessage() {}
func (*HandleRequest) Descriptor() ([]byte, []int) {
return file_github_com_micro_go_micro_server_proto_server_proto_rawDescGZIP(), []int{0}
return fileDescriptor_1959cecd4d1121a1, []int{0}
}
func (x *HandleRequest) GetService() string {
if x != nil {
return x.Service
func (m *HandleRequest) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_HandleRequest.Unmarshal(m, b)
}
func (m *HandleRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_HandleRequest.Marshal(b, m, deterministic)
}
func (m *HandleRequest) XXX_Merge(src proto.Message) {
xxx_messageInfo_HandleRequest.Merge(m, src)
}
func (m *HandleRequest) XXX_Size() int {
return xxx_messageInfo_HandleRequest.Size(m)
}
func (m *HandleRequest) XXX_DiscardUnknown() {
xxx_messageInfo_HandleRequest.DiscardUnknown(m)
}
var xxx_messageInfo_HandleRequest proto.InternalMessageInfo
func (m *HandleRequest) GetService() string {
if m != nil {
return m.Service
}
return ""
}
func (x *HandleRequest) GetEndpoint() string {
if x != nil {
return x.Endpoint
func (m *HandleRequest) GetEndpoint() string {
if m != nil {
return m.Endpoint
}
return ""
}
func (x *HandleRequest) GetProtocol() string {
if x != nil {
return x.Protocol
func (m *HandleRequest) GetProtocol() string {
if m != nil {
return m.Protocol
}
return ""
}
type HandleResponse struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (x *HandleResponse) Reset() {
*x = HandleResponse{}
if protoimpl.UnsafeEnabled {
mi := &file_github_com_micro_go_micro_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_github_com_micro_go_micro_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 (m *HandleResponse) Reset() { *m = HandleResponse{} }
func (m *HandleResponse) String() string { return proto.CompactTextString(m) }
func (*HandleResponse) ProtoMessage() {}
func (*HandleResponse) Descriptor() ([]byte, []int) {
return file_github_com_micro_go_micro_server_proto_server_proto_rawDescGZIP(), []int{1}
return fileDescriptor_1959cecd4d1121a1, []int{1}
}
func (m *HandleResponse) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_HandleResponse.Unmarshal(m, b)
}
func (m *HandleResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_HandleResponse.Marshal(b, m, deterministic)
}
func (m *HandleResponse) XXX_Merge(src proto.Message) {
xxx_messageInfo_HandleResponse.Merge(m, src)
}
func (m *HandleResponse) XXX_Size() int {
return xxx_messageInfo_HandleResponse.Size(m)
}
func (m *HandleResponse) XXX_DiscardUnknown() {
xxx_messageInfo_HandleResponse.DiscardUnknown(m)
}
var xxx_messageInfo_HandleResponse proto.InternalMessageInfo
type SubscribeRequest struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
Topic string `protobuf:"bytes,1,opt,name=topic,proto3" json:"topic,omitempty"`
Topic string `protobuf:"bytes,1,opt,name=topic,proto3" json:"topic,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (x *SubscribeRequest) Reset() {
*x = SubscribeRequest{}
if protoimpl.UnsafeEnabled {
mi := &file_github_com_micro_go_micro_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_github_com_micro_go_micro_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 (m *SubscribeRequest) Reset() { *m = SubscribeRequest{} }
func (m *SubscribeRequest) String() string { return proto.CompactTextString(m) }
func (*SubscribeRequest) ProtoMessage() {}
func (*SubscribeRequest) Descriptor() ([]byte, []int) {
return file_github_com_micro_go_micro_server_proto_server_proto_rawDescGZIP(), []int{2}
return fileDescriptor_1959cecd4d1121a1, []int{2}
}
func (x *SubscribeRequest) GetTopic() string {
if x != nil {
return x.Topic
func (m *SubscribeRequest) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_SubscribeRequest.Unmarshal(m, b)
}
func (m *SubscribeRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_SubscribeRequest.Marshal(b, m, deterministic)
}
func (m *SubscribeRequest) XXX_Merge(src proto.Message) {
xxx_messageInfo_SubscribeRequest.Merge(m, src)
}
func (m *SubscribeRequest) XXX_Size() int {
return xxx_messageInfo_SubscribeRequest.Size(m)
}
func (m *SubscribeRequest) XXX_DiscardUnknown() {
xxx_messageInfo_SubscribeRequest.DiscardUnknown(m)
}
var xxx_messageInfo_SubscribeRequest proto.InternalMessageInfo
func (m *SubscribeRequest) GetTopic() string {
if m != nil {
return m.Topic
}
return ""
}
type SubscribeResponse struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (x *SubscribeResponse) Reset() {
*x = SubscribeResponse{}
if protoimpl.UnsafeEnabled {
mi := &file_github_com_micro_go_micro_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_github_com_micro_go_micro_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 (m *SubscribeResponse) Reset() { *m = SubscribeResponse{} }
func (m *SubscribeResponse) String() string { return proto.CompactTextString(m) }
func (*SubscribeResponse) ProtoMessage() {}
func (*SubscribeResponse) Descriptor() ([]byte, []int) {
return file_github_com_micro_go_micro_server_proto_server_proto_rawDescGZIP(), []int{3}
return fileDescriptor_1959cecd4d1121a1, []int{3}
}
var File_github_com_micro_go_micro_server_proto_server_proto protoreflect.FileDescriptor
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func (m *SubscribeResponse) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_SubscribeResponse.Unmarshal(m, b)
}
func (m *SubscribeResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_SubscribeResponse.Marshal(b, m, deterministic)
}
func (m *SubscribeResponse) XXX_Merge(src proto.Message) {
xxx_messageInfo_SubscribeResponse.Merge(m, src)
}
func (m *SubscribeResponse) XXX_Size() int {
return xxx_messageInfo_SubscribeResponse.Size(m)
}
func (m *SubscribeResponse) XXX_DiscardUnknown() {
xxx_messageInfo_SubscribeResponse.DiscardUnknown(m)
}
var (
file_github_com_micro_go_micro_server_proto_server_proto_rawDescOnce sync.Once
file_github_com_micro_go_micro_server_proto_server_proto_rawDescData = file_github_com_micro_go_micro_server_proto_server_proto_rawDesc
)
var xxx_messageInfo_SubscribeResponse proto.InternalMessageInfo
func file_github_com_micro_go_micro_server_proto_server_proto_rawDescGZIP() []byte {
file_github_com_micro_go_micro_server_proto_server_proto_rawDescOnce.Do(func() {
file_github_com_micro_go_micro_server_proto_server_proto_rawDescData = protoimpl.X.CompressGZIP(file_github_com_micro_go_micro_server_proto_server_proto_rawDescData)
})
return file_github_com_micro_go_micro_server_proto_server_proto_rawDescData
func init() {
proto.RegisterType((*HandleRequest)(nil), "go.micro.server.HandleRequest")
proto.RegisterType((*HandleResponse)(nil), "go.micro.server.HandleResponse")
proto.RegisterType((*SubscribeRequest)(nil), "go.micro.server.SubscribeRequest")
proto.RegisterType((*SubscribeResponse)(nil), "go.micro.server.SubscribeResponse")
}
var file_github_com_micro_go_micro_server_proto_server_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
var file_github_com_micro_go_micro_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_github_com_micro_go_micro_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() { proto.RegisterFile("server/proto/server.proto", fileDescriptor_1959cecd4d1121a1) }
var fileDescriptor_1959cecd4d1121a1 = []byte{
// 223 bytes of a gzipped FileDescriptorProto
0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0x92, 0x2c, 0x4e, 0x2d, 0x2a,
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0x39, 0xb0, 0x05, 0xc9, 0xf9, 0x39, 0x12, 0xcc, 0x10, 0x39, 0x18, 0x5f, 0x49, 0x80, 0x8b, 0x0f,
0x66, 0x45, 0x71, 0x41, 0x7e, 0x5e, 0x71, 0xaa, 0x92, 0x06, 0x97, 0x40, 0x70, 0x69, 0x52, 0x71,
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0x10, 0x8e, 0x92, 0x30, 0x97, 0x20, 0x92, 0x4a, 0x88, 0x76, 0xa3, 0xd5, 0x8c, 0x5c, 0x6c, 0xc1,
0x60, 0xe7, 0x0b, 0x79, 0x73, 0xb1, 0x41, 0xcc, 0x16, 0x92, 0xd3, 0x43, 0xf3, 0x9a, 0x1e, 0x8a,
0xbf, 0xa4, 0xe4, 0x71, 0xca, 0x43, 0x1d, 0xc5, 0x20, 0x14, 0xc2, 0xc5, 0x09, 0xb7, 0x4c, 0x48,
0x11, 0x43, 0x3d, 0xba, 0x93, 0xa5, 0x94, 0xf0, 0x29, 0x81, 0x99, 0x9a, 0xc4, 0x06, 0x0e, 0x08,
0x63, 0x40, 0x00, 0x00, 0x00, 0xff, 0xff, 0xa4, 0x3f, 0x79, 0x80, 0x96, 0x01, 0x00, 0x00,
}
func init() { file_github_com_micro_go_micro_server_proto_server_proto_init() }
func file_github_com_micro_go_micro_server_proto_server_proto_init() {
if File_github_com_micro_go_micro_server_proto_server_proto != nil {
return
// 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
// ServerClient is the client API for Server service.
//
// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://godoc.org/google.golang.org/grpc#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.ClientConn
}
func NewServerClient(cc *grpc.ClientConn) 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
}
if !protoimpl.UnsafeEnabled {
file_github_com_micro_go_micro_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_github_com_micro_go_micro_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_github_com_micro_go_micro_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_github_com_micro_go_micro_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
}
}
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
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_github_com_micro_go_micro_server_proto_server_proto_rawDesc,
NumEnums: 0,
NumMessages: 4,
NumExtensions: 0,
NumServices: 1,
return out, nil
}
// ServerServer is the server API for Server service.
type ServerServer interface {
Handle(context.Context, *HandleRequest) (*HandleResponse, error)
Subscribe(context.Context, *SubscribeRequest) (*SubscribeResponse, error)
}
// UnimplementedServerServer can be embedded to have forward compatible implementations.
type UnimplementedServerServer struct {
}
func (*UnimplementedServerServer) Handle(ctx context.Context, req *HandleRequest) (*HandleResponse, error) {
return nil, status.Errorf(codes.Unimplemented, "method Handle not implemented")
}
func (*UnimplementedServerServer) Subscribe(ctx context.Context, req *SubscribeRequest) (*SubscribeResponse, error) {
return nil, status.Errorf(codes.Unimplemented, "method Subscribe not implemented")
}
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,
},
GoTypes: file_github_com_micro_go_micro_server_proto_server_proto_goTypes,
DependencyIndexes: file_github_com_micro_go_micro_server_proto_server_proto_depIdxs,
MessageInfos: file_github_com_micro_go_micro_server_proto_server_proto_msgTypes,
}.Build()
File_github_com_micro_go_micro_server_proto_server_proto = out.File
file_github_com_micro_go_micro_server_proto_server_proto_rawDesc = nil
file_github_com_micro_go_micro_server_proto_server_proto_goTypes = nil
file_github_com_micro_go_micro_server_proto_server_proto_depIdxs = nil
{
MethodName: "Subscribe",
Handler: _Server_Subscribe_Handler,
},
},
Streams: []grpc.StreamDesc{},
Metadata: "server/proto/server.proto",
}

2
server/proto/server.pb.micro.go
View File

@ -1,5 +1,5 @@
// Code generated by protoc-gen-micro. DO NOT EDIT.
// source: github.com/micro/go-micro/server/proto/server.proto
// source: server/proto/server.proto
package go_micro_server

7
service.go
View File

@ -35,13 +35,14 @@ func newService(opts ...Option) Service {
// service name
serviceName := options.Server.Options().Name
// authFn returns the auth, we pass as a function since auth
// has not yet been set at this point.
// we pass functions to the wrappers since the values can change during initialisation
authFn := func() auth.Auth { return options.Server.Options().Auth }
cacheFn := func() *client.Cache { return options.Client.Options().Cache }
// wrap client to inject From-Service header on any calls
options.Client = wrapper.FromService(serviceName, options.Client)
options.Client = wrapper.TraceCall(serviceName, trace.DefaultTracer, options.Client)
options.Client = wrapper.CacheClient(cacheFn, options.Client)
options.Client = wrapper.AuthClient(authFn, options.Client)
// wrap the server to provide handler stats
@ -183,7 +184,7 @@ func (s *service) Run() error {
// register the debug handler
s.opts.Server.Handle(
s.opts.Server.NewHandler(
handler.NewHandler(),
handler.NewHandler(s.opts.Client),
server.InternalHandler(true),
),
)

1452
util/file/proto/file.pb.go
View File

File diff suppressed because it is too large Load Diff

2
util/file/proto/file.pb.micro.go
View File

@ -1,5 +1,5 @@
// Code generated by protoc-gen-micro. DO NOT EDIT.
// source: micro/go-micro/util/file/proto/file.proto
// source: util/file/proto/file.proto
package go_micro_server

3
util/mux/mux.go
View File

@ -5,6 +5,7 @@ import (
"context"
"sync"
"github.com/micro/go-micro/v2/client"
"github.com/micro/go-micro/v2/debug/service/handler"
"github.com/micro/go-micro/v2/proxy"
"github.com/micro/go-micro/v2/server"
@ -42,7 +43,7 @@ func New(name string, p proxy.Proxy) *Server {
server.DefaultRouter.Handle(
// inject the debug handler
server.DefaultRouter.NewHandler(
handler.NewHandler(),
handler.NewHandler(client.DefaultClient),
server.InternalHandler(true),
),
)

53
util/wrapper/wrapper.go
View File

@ -2,6 +2,7 @@ package wrapper
import (
"context"
"reflect"
"strings"
"time"
@ -227,3 +228,55 @@ func AuthHandler(fn func() auth.Auth) server.HandlerWrapper {
}
}
}
type cacheWrapper struct {
cacheFn func() *client.Cache
client.Client
}
// Call executes the request. If the CacheExpiry option was set, the response will be cached using
// a hash of the metadata and request as the key.
func (c *cacheWrapper) Call(ctx context.Context, req client.Request, rsp interface{}, opts ...client.CallOption) error {
// parse the options
var options client.CallOptions
for _, o := range opts {
o(&options)
}
// if the client doesn't have a cacbe setup don't continue
cache := c.cacheFn()
if cache == nil {
return c.Client.Call(ctx, req, rsp, opts...)
}
// if the cache expiry is not set, execute the call without the cache
if options.CacheExpiry == 0 {
return c.Client.Call(ctx, req, rsp, opts...)
}
// if the response is nil don't call the cache since we can't assign the response
if rsp == nil {
return c.Client.Call(ctx, req, rsp, opts...)
}
// check to see if there is a response cached, if there is assign it
if r, ok := cache.Get(ctx, &req); ok {
val := reflect.ValueOf(rsp).Elem()
val.Set(reflect.ValueOf(r).Elem())
return nil
}
// don't cache the result if there was an error
if err := c.Client.Call(ctx, req, rsp, opts...); err != nil {
return err
}
// set the result in the cache
cache.Set(ctx, &req, rsp, options.CacheExpiry)
return nil
}
// CacheClient wraps requests with the cache wrapper
func CacheClient(cacheFn func() *client.Cache, c client.Client) client.Client {
return &cacheWrapper{cacheFn, c}
}

100
util/wrapper/wrapper_test.go
View File

@ -2,8 +2,11 @@ package wrapper
import (
"context"
"reflect"
"testing"
"time"
"github.com/micro/go-micro/v2/client"
"github.com/micro/go-micro/v2/metadata"
)
@ -49,5 +52,100 @@ func TestWrapper(t *testing.T) {
}
}
}
}
type testClient struct {
callCount int
callRsp interface{}
client.Client
}
func (c *testClient) Call(ctx context.Context, req client.Request, rsp interface{}, opts ...client.CallOption) error {
c.callCount++
if c.callRsp != nil {
val := reflect.ValueOf(rsp).Elem()
val.Set(reflect.ValueOf(c.callRsp).Elem())
}
return nil
}
type testRsp struct {
value string
}
func TestCacheWrapper(t *testing.T) {
req := client.NewRequest("go.micro.service.foo", "Foo.Bar", nil)
t.Run("NilCache", func(t *testing.T) {
cli := new(testClient)
w := CacheClient(func() *client.Cache {
return nil
}, cli)
// perfroming two requests should increment the call count by two indicating the cache wasn't
// used even though the WithCache option was passed.
w.Call(context.TODO(), req, nil, client.WithCache(time.Minute))
w.Call(context.TODO(), req, nil, client.WithCache(time.Minute))
if cli.callCount != 2 {
t.Errorf("Expected the client to have been called twice")
}
})
t.Run("OptionNotSet", func(t *testing.T) {
cli := new(testClient)
cache := client.NewCache()
w := CacheClient(func() *client.Cache {
return cache
}, cli)
// perfroming two requests should increment the call count by two since we didn't pass the WithCache
// option to Call.
w.Call(context.TODO(), req, nil)
w.Call(context.TODO(), req, nil)
if cli.callCount != 2 {
t.Errorf("Expected the client to have been called twice")
}
})
t.Run("OptionSet", func(t *testing.T) {
val := "foo"
cli := &testClient{callRsp: &testRsp{value: val}}
cache := client.NewCache()
w := CacheClient(func() *client.Cache {
return cache
}, cli)
// perfroming two requests should increment the call count by once since the second request should
// have used the cache. The correct value should be set on both responses and no errors should
// be returned.
rsp1 := &testRsp{}
rsp2 := &testRsp{}
err1 := w.Call(context.TODO(), req, rsp1, client.WithCache(time.Minute))
err2 := w.Call(context.TODO(), req, rsp2, client.WithCache(time.Minute))
if err1 != nil {
t.Errorf("Expected nil error, got %v", err1)
}
if err2 != nil {
t.Errorf("Expected nil error, got %v", err2)
}
if rsp1.value != val {
t.Errorf("Expected %v to be assigned to the value, got %v", val, rsp1.value)
}
if rsp2.value != val {
t.Errorf("Expected %v to be assigned to the value, got %v", val, rsp2.value)
}
if cli.callCount != 1 {
t.Errorf("Expected the client to be called 1 time, was actually called %v time(s)", cli.callCount)
}
})
}