unistack-org/micro-wrapper-metadata
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rework

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Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
This commit is contained in:
Василий Толстов 2024-03-10 16:31:57 +03:00
parent 85fff3f75b
commit 039f0da1ac
1 changed files with 42 additions and 14 deletions
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56
metadata.go
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@ -10,23 +10,23 @@ import (
type wrapper struct {
client.Client
exclude []string
keys []string
}
func NewClientWrapper(exclude ...string) client.Wrapper {
func NewClientWrapper(keys ...string) client.Wrapper {
return func(c client.Client) client.Client {
handler := &wrapper{
Client: c,
exclude: exclude,
Client: c,
keys: keys,
}
return handler
}
}
func NewClientCallWrapper(exclude ...string) client.CallWrapper {
func NewClientCallWrapper(keys ...string) client.CallWrapper {
return func(fn client.CallFunc) client.CallFunc {
return func(ctx context.Context, addr string, req client.Request, rsp interface{}, opts client.CallOptions) error {
if exclude == nil {
if keys == nil {
return fn(ctx, addr, req, rsp, opts)
}
if imd, iok := metadata.FromIncomingContext(ctx); iok && imd != nil {
@ -34,7 +34,14 @@ func NewClientCallWrapper(exclude ...string) client.CallWrapper {
if !ook || omd == nil {
omd = metadata.New(len(imd))
}
ctx = metadata.NewOutgoingContext(ctx, metadata.Merge(omd, metadata.Copy(imd, exclude...), false))
for _, k := range keys {
if v, ok := imd.Get(k); ok && v != "" {
omd.Set(k, v)
}
}
if !ook {
ctx = metadata.NewOutgoingContext(ctx, omd)
}
}
return fn(ctx, addr, req, rsp, opts)
}
@ -42,7 +49,7 @@ func NewClientCallWrapper(exclude ...string) client.CallWrapper {
}
func (w *wrapper) Call(ctx context.Context, req client.Request, rsp interface{}, opts ...client.CallOption) error {
if w.exclude == nil {
if w.keys == nil {
return w.Client.Call(ctx, req, rsp, opts...)
}
if imd, iok := metadata.FromIncomingContext(ctx); iok && imd != nil {
@ -50,13 +57,20 @@ func (w *wrapper) Call(ctx context.Context, req client.Request, rsp interface{},
if !ook || omd == nil {
omd = metadata.New(len(imd))
}
ctx = metadata.NewOutgoingContext(ctx, metadata.Merge(omd, metadata.Copy(imd, w.exclude...), false))
for _, k := range w.keys {
if v, ok := imd.Get(k); ok && v != "" {
omd.Set(k, v)
}
}
if !ook {
ctx = metadata.NewOutgoingContext(ctx, omd)
}
}
return w.Client.Call(ctx, req, rsp, opts...)
}
func (w *wrapper) Stream(ctx context.Context, req client.Request, opts ...client.CallOption) (client.Stream, error) {
if w.exclude == nil {
if w.keys == nil {
return w.Client.Stream(ctx, req, opts...)
}
if imd, iok := metadata.FromIncomingContext(ctx); iok && imd != nil {
@ -64,15 +78,22 @@ func (w *wrapper) Stream(ctx context.Context, req client.Request, opts ...client
if !ook || omd == nil {
omd = metadata.New(len(imd))
}
ctx = metadata.NewOutgoingContext(ctx, metadata.Merge(omd, metadata.Copy(imd, w.exclude...), false))
for _, k := range w.keys {
if v, ok := imd.Get(k); ok && v != "" {
omd.Set(k, v)
}
}
if !ook {
ctx = metadata.NewOutgoingContext(ctx, omd)
}
}
return w.Client.Stream(ctx, req, opts...)
}
func NewServerHandlerWrapper(exclude ...string) server.HandlerWrapper {
func NewServerHandlerWrapper(keys ...string) server.HandlerWrapper {
return func(fn server.HandlerFunc) server.HandlerFunc {
return func(ctx context.Context, req server.Request, rsp interface{}) error {
if exclude == nil {
if keys == nil {
return fn(ctx, req, rsp)
}
if imd, iok := metadata.FromIncomingContext(ctx); iok && imd != nil {
@ -80,7 +101,14 @@ func NewServerHandlerWrapper(exclude ...string) server.HandlerWrapper {
if !ook || omd == nil {
omd = metadata.New(len(imd))
}
ctx = metadata.NewOutgoingContext(ctx, metadata.Merge(omd, metadata.Copy(imd, exclude...), false))
for _, k := range keys {
if v, ok := imd.Get(k); ok && v != "" {
omd.Set(k, v)
}
}
if !ook {
ctx = metadata.NewOutgoingContext(ctx, omd)
}
}
return fn(ctx, req, rsp)
}