broker: refactor (#396)
* remove subscribe from server * remove publish from client * broker package refactoring Co-authored-by: vtolstov <vtolstov@users.noreply.github.com> Reviewed-on: #396 Co-authored-by: Vasiliy Tolstov <v.tolstov@unistack.org> Co-committed-by: Vasiliy Tolstov <v.tolstov@unistack.org>
This commit is contained in:
@@ -1,181 +0,0 @@
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//go:build !exclude
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// Package metadata is a way of defining message headers
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package metadata
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import (
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"context"
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)
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type (
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mdIncomingKey struct{}
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mdOutgoingKey struct{}
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mdKey struct{}
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)
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// FromIncomingContext returns metadata from incoming ctx
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// returned metadata shoud not be modified or race condition happens
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func FromIncomingContext(ctx context.Context) (Metadata, bool) {
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if ctx == nil {
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return nil, false
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}
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md, ok := ctx.Value(mdIncomingKey{}).(*rawMetadata)
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if !ok || md.md == nil {
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return nil, false
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}
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return md.md, ok
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}
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// MustIncomingContext returns metadata from incoming ctx
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// returned metadata shoud not be modified or race condition happens.
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// If metadata not exists panics.
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func MustIncomingContext(ctx context.Context) Metadata {
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md, ok := FromIncomingContext(ctx)
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if !ok {
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panic("missing metadata")
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}
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return md
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}
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// FromOutgoingContext returns metadata from outgoing ctx
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// returned metadata shoud not be modified or race condition happens
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func FromOutgoingContext(ctx context.Context) (Metadata, bool) {
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if ctx == nil {
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return nil, false
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}
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md, ok := ctx.Value(mdOutgoingKey{}).(*rawMetadata)
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if !ok || md.md == nil {
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return nil, false
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}
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return md.md, ok
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}
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// MustOutgoingContext returns metadata from outgoing ctx
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// returned metadata shoud not be modified or race condition happens.
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// If metadata not exists panics.
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func MustOutgoingContext(ctx context.Context) Metadata {
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md, ok := FromOutgoingContext(ctx)
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if !ok {
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panic("missing metadata")
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}
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return md
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}
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// FromContext returns metadata from the given context
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// returned metadata shoud not be modified or race condition happens
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func FromContext(ctx context.Context) (Metadata, bool) {
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if ctx == nil {
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return nil, false
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}
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md, ok := ctx.Value(mdKey{}).(*rawMetadata)
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if !ok || md.md == nil {
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return nil, false
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}
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return md.md, ok
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}
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// MustContext returns metadata from the given context
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// returned metadata shoud not be modified or race condition happens
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func MustContext(ctx context.Context) Metadata {
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md, ok := FromContext(ctx)
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if !ok {
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panic("missing metadata")
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}
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return md
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}
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// NewContext creates a new context with the given metadata
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func NewContext(ctx context.Context, md Metadata) context.Context {
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if ctx == nil {
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ctx = context.Background()
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}
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return context.WithValue(ctx, mdKey{}, &rawMetadata{md})
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}
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// SetOutgoingContext modify outgoing context with given metadata
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func SetOutgoingContext(ctx context.Context, md Metadata) bool {
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if ctx == nil {
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return false
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}
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if omd, ok := ctx.Value(mdOutgoingKey{}).(*rawMetadata); ok {
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omd.md = md
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return true
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}
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return false
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}
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// SetIncomingContext modify incoming context with given metadata
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func SetIncomingContext(ctx context.Context, md Metadata) bool {
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if ctx == nil {
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return false
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}
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if omd, ok := ctx.Value(mdIncomingKey{}).(*rawMetadata); ok {
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omd.md = md
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return true
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}
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return false
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}
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// NewIncomingContext creates a new context with incoming metadata attached
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func NewIncomingContext(ctx context.Context, md Metadata) context.Context {
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if ctx == nil {
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ctx = context.Background()
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}
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return context.WithValue(ctx, mdIncomingKey{}, &rawMetadata{md})
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}
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// NewOutgoingContext creates a new context with outcoming metadata attached
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func NewOutgoingContext(ctx context.Context, md Metadata) context.Context {
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if ctx == nil {
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ctx = context.Background()
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}
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return context.WithValue(ctx, mdOutgoingKey{}, &rawMetadata{md})
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}
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// AppendOutgoingContext apends new md to context
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func AppendOutgoingContext(ctx context.Context, kv ...string) context.Context {
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md, ok := Pairs(kv...)
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if !ok {
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return ctx
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}
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omd, ok := FromOutgoingContext(ctx)
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if !ok {
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return NewOutgoingContext(ctx, md)
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}
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for k, v := range md {
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omd.Set(k, v)
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}
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return ctx
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}
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// AppendIncomingContext apends new md to context
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func AppendIncomingContext(ctx context.Context, kv ...string) context.Context {
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md, ok := Pairs(kv...)
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if !ok {
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return ctx
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}
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omd, ok := FromIncomingContext(ctx)
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if !ok {
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return NewIncomingContext(ctx, md)
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}
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for k, v := range md {
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omd.Set(k, v)
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}
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return ctx
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}
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// AppendContext apends new md to context
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func AppendContext(ctx context.Context, kv ...string) context.Context {
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md, ok := Pairs(kv...)
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if !ok {
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return ctx
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}
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omd, ok := FromContext(ctx)
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if !ok {
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return NewContext(ctx, md)
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}
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for k, v := range md {
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omd.Set(k, v)
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}
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return ctx
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}
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@@ -1,140 +0,0 @@
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package metadata
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import (
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"context"
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"testing"
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)
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func TestFromNilContext(t *testing.T) {
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// nolint: staticcheck
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c, ok := FromContext(nil)
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if ok || c != nil {
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t.Fatal("FromContext not works")
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}
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}
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func TestNewNilContext(t *testing.T) {
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// nolint: staticcheck
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ctx := NewContext(nil, New(0))
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c, ok := FromContext(ctx)
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if c == nil || !ok {
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t.Fatal("NewContext not works")
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}
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}
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func TestFromContext(t *testing.T) {
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ctx := context.WithValue(context.TODO(), mdKey{}, &rawMetadata{New(0)})
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c, ok := FromContext(ctx)
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if c == nil || !ok {
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t.Fatal("FromContext not works")
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}
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}
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func TestNewContext(t *testing.T) {
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ctx := NewContext(context.TODO(), New(0))
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c, ok := FromContext(ctx)
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if c == nil || !ok {
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t.Fatal("NewContext not works")
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}
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}
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func TestFromIncomingContext(t *testing.T) {
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ctx := context.WithValue(context.TODO(), mdIncomingKey{}, &rawMetadata{New(0)})
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c, ok := FromIncomingContext(ctx)
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if c == nil || !ok {
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t.Fatal("FromIncomingContext not works")
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}
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}
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func TestFromOutgoingContext(t *testing.T) {
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ctx := context.WithValue(context.TODO(), mdOutgoingKey{}, &rawMetadata{New(0)})
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c, ok := FromOutgoingContext(ctx)
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if c == nil || !ok {
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t.Fatal("FromOutgoingContext not works")
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}
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}
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func TestSetIncomingContext(t *testing.T) {
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md := New(1)
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md.Set("key", "val")
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ctx := context.WithValue(context.TODO(), mdIncomingKey{}, &rawMetadata{})
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if !SetIncomingContext(ctx, md) {
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t.Fatal("SetIncomingContext not works")
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}
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md, ok := FromIncomingContext(ctx)
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if md == nil || !ok {
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t.Fatal("SetIncomingContext not works")
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} else if v, ok := md.Get("key"); !ok || v != "val" {
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t.Fatal("SetIncomingContext not works")
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}
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}
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func TestSetOutgoingContext(t *testing.T) {
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md := New(1)
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md.Set("key", "val")
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ctx := context.WithValue(context.TODO(), mdOutgoingKey{}, &rawMetadata{})
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if !SetOutgoingContext(ctx, md) {
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t.Fatal("SetOutgoingContext not works")
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}
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md, ok := FromOutgoingContext(ctx)
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if md == nil || !ok {
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t.Fatal("SetOutgoingContext not works")
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} else if v, ok := md.Get("key"); !ok || v != "val" {
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t.Fatal("SetOutgoingContext not works")
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}
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}
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func TestNewIncomingContext(t *testing.T) {
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md := New(1)
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md.Set("key", "val")
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ctx := NewIncomingContext(context.TODO(), md)
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c, ok := FromIncomingContext(ctx)
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if c == nil || !ok {
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t.Fatal("NewIncomingContext not works")
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}
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}
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func TestNewOutgoingContext(t *testing.T) {
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md := New(1)
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md.Set("key", "val")
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ctx := NewOutgoingContext(context.TODO(), md)
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c, ok := FromOutgoingContext(ctx)
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if c == nil || !ok {
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t.Fatal("NewOutgoingContext not works")
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}
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}
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func TestAppendIncomingContext(t *testing.T) {
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md := New(1)
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md.Set("key1", "val1")
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ctx := AppendIncomingContext(context.TODO(), "key2", "val2")
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nmd, ok := FromIncomingContext(ctx)
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if nmd == nil || !ok {
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t.Fatal("AppendIncomingContext not works")
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}
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if v, ok := nmd.Get("key2"); !ok || v != "val2" {
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t.Fatal("AppendIncomingContext not works")
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}
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}
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func TestAppendOutgoingContext(t *testing.T) {
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md := New(1)
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md.Set("key1", "val1")
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ctx := AppendOutgoingContext(context.TODO(), "key2", "val2")
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nmd, ok := FromOutgoingContext(ctx)
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if nmd == nil || !ok {
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t.Fatal("AppendOutgoingContext not works")
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}
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if v, ok := nmd.Get("key2"); !ok || v != "val2" {
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t.Fatal("AppendOutgoingContext not works")
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}
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}
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19
metadata/headers.go
Normal file
19
metadata/headers.go
Normal file
@@ -0,0 +1,19 @@
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// Package metadata is a way of defining message headers
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package metadata
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var (
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// HeaderTopic is the header name that contains topic name
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HeaderTopic = "Micro-Topic"
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// HeaderContentType specifies content type of message
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HeaderContentType = "Content-Type"
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// HeaderEndpoint specifies endpoint in service
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HeaderEndpoint = "Micro-Endpoint"
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// HeaderService specifies service
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HeaderService = "Micro-Service"
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// HeaderTimeout specifies timeout of operation
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HeaderTimeout = "Micro-Timeout"
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// HeaderAuthorization specifies Authorization header
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HeaderAuthorization = "Authorization"
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// HeaderXRequestID specifies request id
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HeaderXRequestID = "X-Request-Id"
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)
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@@ -1,43 +1,462 @@
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//go:build !exclude
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// Package metadata is a way of defining message headers
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package metadata
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import (
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"context"
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"fmt"
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"net/textproto"
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"sort"
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"strings"
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)
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var (
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// HeaderTopic is the header name that contains topic name
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HeaderTopic = "Micro-Topic"
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// HeaderContentType specifies content type of message
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HeaderContentType = "Content-Type"
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// HeaderEndpoint specifies endpoint in service
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HeaderEndpoint = "Micro-Endpoint"
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// HeaderService specifies service
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HeaderService = "Micro-Service"
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// HeaderTimeout specifies timeout of operation
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HeaderTimeout = "Micro-Timeout"
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// HeaderAuthorization specifies Authorization header
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HeaderAuthorization = "Authorization"
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// HeaderXRequestID specifies request id
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HeaderXRequestID = "X-Request-Id"
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)
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// Metadata is our way of representing request headers internally.
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// They're used at the RPC level and translate back and forth
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// from Transport headers.
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type Metadata map[string]string
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|
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type rawMetadata struct {
|
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md Metadata
|
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}
|
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// defaultMetadataSize used when need to init new Metadata
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var defaultMetadataSize = 2
|
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// Metadata is a mapping from metadata keys to values. Users should use the following
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// two convenience functions New and Pairs to generate Metadata.
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type Metadata map[string][]string
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// New creates an zero Metadata.
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func New(l int) Metadata {
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if l == 0 {
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l = defaultMetadataSize
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}
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md := make(Metadata, l)
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return md
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}
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// NewWithMetadata creates an Metadata from a given key-value map.
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func NewWithMetadata(m map[string]string) Metadata {
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md := make(Metadata, len(m))
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for key, val := range m {
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md[key] = append(md[key], val)
|
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}
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return md
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}
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|
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// Pairs returns an Metadata formed by the mapping of key, value ...
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// Pairs panics if len(kv) is odd.
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func Pairs(kv ...string) Metadata {
|
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if len(kv)%2 == 1 {
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panic(fmt.Sprintf("metadata: Pairs got the odd number of input pairs for metadata: %d", len(kv)))
|
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}
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md := make(Metadata, len(kv)/2)
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for i := 0; i < len(kv); i += 2 {
|
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md[kv[i]] = append(md[kv[i]], kv[i+1])
|
||||
}
|
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return md
|
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}
|
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|
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// Len returns the number of items in Metadata.
|
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func (md Metadata) Len() int {
|
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return len(md)
|
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}
|
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|
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// Copy returns a copy of Metadata.
|
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func Copy(src Metadata) Metadata {
|
||||
out := make(Metadata, len(src))
|
||||
for k, v := range src {
|
||||
out[k] = copyOf(v)
|
||||
}
|
||||
return out
|
||||
}
|
||||
|
||||
// Copy returns a copy of Metadata.
|
||||
func (md Metadata) Copy() Metadata {
|
||||
out := make(Metadata, len(md))
|
||||
for k, v := range md {
|
||||
out[k] = copyOf(v)
|
||||
}
|
||||
return out
|
||||
}
|
||||
|
||||
// AsHTTP1 returns a copy of Metadata
|
||||
// with CanonicalMIMEHeaderKey.
|
||||
func (md Metadata) AsHTTP1() map[string][]string {
|
||||
out := make(map[string][]string, len(md))
|
||||
for k, v := range md {
|
||||
out[textproto.CanonicalMIMEHeaderKey(k)] = copyOf(v)
|
||||
}
|
||||
return out
|
||||
}
|
||||
|
||||
// AsHTTP1 returns a copy of Metadata
|
||||
// with strings.ToLower.
|
||||
func (md Metadata) AsHTTP2() map[string][]string {
|
||||
out := make(map[string][]string, len(md))
|
||||
for k, v := range md {
|
||||
out[strings.ToLower(k)] = copyOf(v)
|
||||
}
|
||||
return out
|
||||
}
|
||||
|
||||
// CopyTo copies Metadata to out.
|
||||
func (md Metadata) CopyTo(out Metadata) {
|
||||
for k, v := range md {
|
||||
out[k] = copyOf(v)
|
||||
}
|
||||
}
|
||||
|
||||
// Get obtains the values for a given key.
|
||||
func (md Metadata) MustGet(k string) []string {
|
||||
v, ok := md.Get(k)
|
||||
if !ok {
|
||||
panic("missing metadata key")
|
||||
}
|
||||
return v
|
||||
}
|
||||
|
||||
// Get obtains the values for a given key.
|
||||
func (md Metadata) Get(k string) ([]string, bool) {
|
||||
v, ok := md[k]
|
||||
if !ok {
|
||||
v, ok = md[strings.ToLower(k)]
|
||||
}
|
||||
if !ok {
|
||||
v, ok = md[textproto.CanonicalMIMEHeaderKey(k)]
|
||||
}
|
||||
return v, ok
|
||||
}
|
||||
|
||||
// MustGetJoined obtains the values for a given key
|
||||
// with joined values with "," symbol
|
||||
func (md Metadata) MustGetJoined(k string) string {
|
||||
v, ok := md.GetJoined(k)
|
||||
if !ok {
|
||||
panic("missing metadata key")
|
||||
}
|
||||
return v
|
||||
}
|
||||
|
||||
// GetJoined obtains the values for a given key
|
||||
// with joined values with "," symbol
|
||||
func (md Metadata) GetJoined(k string) (string, bool) {
|
||||
v, ok := md.Get(k)
|
||||
if !ok {
|
||||
return "", ok
|
||||
}
|
||||
return strings.Join(v, ","), true
|
||||
}
|
||||
|
||||
// Set sets the value of a given key with a slice of values.
|
||||
func (md Metadata) Add(key string, vals ...string) {
|
||||
if len(vals) == 0 {
|
||||
return
|
||||
}
|
||||
md[key] = vals
|
||||
}
|
||||
|
||||
// Set sets the value of a given key with a slice of values.
|
||||
func (md Metadata) Set(kvs ...string) {
|
||||
if len(kvs)%2 == 1 {
|
||||
panic(fmt.Sprintf("metadata: Set got an odd number of input pairs for metadata: %d", len(kvs)))
|
||||
}
|
||||
|
||||
for i := 0; i < len(kvs); i += 2 {
|
||||
md[kvs[i]] = append(md[kvs[i]], kvs[i+1])
|
||||
}
|
||||
}
|
||||
|
||||
// Append adds the values to key k, not overwriting what was already stored at
|
||||
// that key.
|
||||
func (md Metadata) Append(key string, vals ...string) {
|
||||
if len(vals) == 0 {
|
||||
return
|
||||
}
|
||||
md[key] = append(md[key], vals...)
|
||||
}
|
||||
|
||||
// Del removes the values for a given keys k.
|
||||
func (md Metadata) Del(k ...string) {
|
||||
for i := range k {
|
||||
delete(md, k[i])
|
||||
delete(md, strings.ToLower(k[i]))
|
||||
delete(md, textproto.CanonicalMIMEHeaderKey(k[i]))
|
||||
}
|
||||
}
|
||||
|
||||
// Join joins any number of Metadatas into a single Metadata.
|
||||
//
|
||||
// The order of values for each key is determined by the order in which the Metadatas
|
||||
// containing those values are presented to Join.
|
||||
func Join(mds ...Metadata) Metadata {
|
||||
out := Metadata{}
|
||||
for _, Metadata := range mds {
|
||||
for k, v := range Metadata {
|
||||
out[k] = append(out[k], v...)
|
||||
}
|
||||
}
|
||||
return out
|
||||
}
|
||||
|
||||
type (
|
||||
metadataIncomingKey struct{}
|
||||
metadataOutgoingKey struct{}
|
||||
metadataCurrentKey struct{}
|
||||
)
|
||||
|
||||
// NewContext creates a new context with Metadata attached. Metadata must
|
||||
// not be modified after calling this function.
|
||||
func NewContext(ctx context.Context, md Metadata) context.Context {
|
||||
return context.WithValue(ctx, metadataCurrentKey{}, rawMetadata{md: md})
|
||||
}
|
||||
|
||||
// NewIncomingContext creates a new context with incoming Metadata attached. Metadata must
|
||||
// not be modified after calling this function.
|
||||
func NewIncomingContext(ctx context.Context, md Metadata) context.Context {
|
||||
return context.WithValue(ctx, metadataIncomingKey{}, rawMetadata{md: md})
|
||||
}
|
||||
|
||||
// NewOutgoingContext creates a new context with outgoing Metadata attached. If used
|
||||
// in conjunction with AppendOutgoingContext, NewOutgoingContext will
|
||||
// overwrite any previously-appended metadata. Metadata must not be modified after
|
||||
// calling this function.
|
||||
func NewOutgoingContext(ctx context.Context, md Metadata) context.Context {
|
||||
return context.WithValue(ctx, metadataOutgoingKey{}, rawMetadata{md: md})
|
||||
}
|
||||
|
||||
// AppendContext returns a new context with the provided kv merged
|
||||
// with any existing metadata in the context. Please refer to the documentation
|
||||
// of Pairs for a description of kv.
|
||||
func AppendContext(ctx context.Context, kv ...string) context.Context {
|
||||
if len(kv)%2 == 1 {
|
||||
panic(fmt.Sprintf("metadata: AppendContext got an odd number of input pairs for metadata: %d", len(kv)))
|
||||
}
|
||||
md, _ := ctx.Value(metadataCurrentKey{}).(rawMetadata)
|
||||
added := make([][]string, len(md.added)+1)
|
||||
copy(added, md.added)
|
||||
kvCopy := make([]string, 0, len(kv))
|
||||
for i := 0; i < len(kv); i += 2 {
|
||||
kvCopy = append(kvCopy, strings.ToLower(kv[i]), kv[i+1])
|
||||
}
|
||||
added[len(added)-1] = kvCopy
|
||||
return context.WithValue(ctx, metadataCurrentKey{}, rawMetadata{md: md.md, added: added})
|
||||
}
|
||||
|
||||
// AppendIncomingContext returns a new context with the provided kv merged
|
||||
// with any existing metadata in the context. Please refer to the documentation
|
||||
// of Pairs for a description of kv.
|
||||
func AppendIncomingContext(ctx context.Context, kv ...string) context.Context {
|
||||
if len(kv)%2 == 1 {
|
||||
panic(fmt.Sprintf("metadata: AppendIncomingContext got an odd number of input pairs for metadata: %d", len(kv)))
|
||||
}
|
||||
md, _ := ctx.Value(metadataIncomingKey{}).(rawMetadata)
|
||||
added := make([][]string, len(md.added)+1)
|
||||
copy(added, md.added)
|
||||
kvCopy := make([]string, 0, len(kv))
|
||||
for i := 0; i < len(kv); i += 2 {
|
||||
kvCopy = append(kvCopy, strings.ToLower(kv[i]), kv[i+1])
|
||||
}
|
||||
added[len(added)-1] = kvCopy
|
||||
return context.WithValue(ctx, metadataIncomingKey{}, rawMetadata{md: md.md, added: added})
|
||||
}
|
||||
|
||||
// AppendOutgoingContext returns a new context with the provided kv merged
|
||||
// with any existing metadata in the context. Please refer to the documentation
|
||||
// of Pairs for a description of kv.
|
||||
func AppendOutgoingContext(ctx context.Context, kv ...string) context.Context {
|
||||
if len(kv)%2 == 1 {
|
||||
panic(fmt.Sprintf("metadata: AppendOutgoingContext got an odd number of input pairs for metadata: %d", len(kv)))
|
||||
}
|
||||
md, _ := ctx.Value(metadataOutgoingKey{}).(rawMetadata)
|
||||
added := make([][]string, len(md.added)+1)
|
||||
copy(added, md.added)
|
||||
kvCopy := make([]string, 0, len(kv))
|
||||
for i := 0; i < len(kv); i += 2 {
|
||||
kvCopy = append(kvCopy, strings.ToLower(kv[i]), kv[i+1])
|
||||
}
|
||||
added[len(added)-1] = kvCopy
|
||||
return context.WithValue(ctx, metadataOutgoingKey{}, rawMetadata{md: md.md, added: added})
|
||||
}
|
||||
|
||||
// FromContext returns the metadata in ctx if it exists.
|
||||
func FromContext(ctx context.Context) (Metadata, bool) {
|
||||
raw, ok := ctx.Value(metadataCurrentKey{}).(rawMetadata)
|
||||
if !ok {
|
||||
return nil, false
|
||||
}
|
||||
metadataSize := len(raw.md)
|
||||
for i := range raw.added {
|
||||
metadataSize += len(raw.added[i]) / 2
|
||||
}
|
||||
|
||||
out := make(Metadata, metadataSize)
|
||||
for k, v := range raw.md {
|
||||
out[k] = copyOf(v)
|
||||
}
|
||||
for _, added := range raw.added {
|
||||
if len(added)%2 == 1 {
|
||||
panic(fmt.Sprintf("metadata: FromContext got an odd number of input pairs for metadata: %d", len(added)))
|
||||
}
|
||||
|
||||
for i := 0; i < len(added); i += 2 {
|
||||
out[added[i]] = append(out[added[i]], added[i+1])
|
||||
}
|
||||
}
|
||||
return out, true
|
||||
}
|
||||
|
||||
// MustContext returns the metadata in ctx.
|
||||
func MustContext(ctx context.Context) Metadata {
|
||||
md, ok := FromContext(ctx)
|
||||
if !ok {
|
||||
panic("missing metadata")
|
||||
}
|
||||
return md
|
||||
}
|
||||
|
||||
// FromIncomingContext returns the incoming metadata in ctx if it exists.
|
||||
func FromIncomingContext(ctx context.Context) (Metadata, bool) {
|
||||
raw, ok := ctx.Value(metadataIncomingKey{}).(rawMetadata)
|
||||
if !ok {
|
||||
return nil, false
|
||||
}
|
||||
metadataSize := len(raw.md)
|
||||
for i := range raw.added {
|
||||
metadataSize += len(raw.added[i]) / 2
|
||||
}
|
||||
|
||||
out := make(Metadata, metadataSize)
|
||||
for k, v := range raw.md {
|
||||
out[k] = copyOf(v)
|
||||
}
|
||||
for _, added := range raw.added {
|
||||
if len(added)%2 == 1 {
|
||||
panic(fmt.Sprintf("metadata: FromIncomingContext got an odd number of input pairs for metadata: %d", len(added)))
|
||||
}
|
||||
|
||||
for i := 0; i < len(added); i += 2 {
|
||||
out[added[i]] = append(out[added[i]], added[i+1])
|
||||
}
|
||||
}
|
||||
return out, true
|
||||
}
|
||||
|
||||
// MustIncomingContext returns the incoming metadata in ctx.
|
||||
func MustIncomingContext(ctx context.Context) Metadata {
|
||||
md, ok := FromIncomingContext(ctx)
|
||||
if !ok {
|
||||
panic("missing metadata")
|
||||
}
|
||||
return md
|
||||
}
|
||||
|
||||
// ValueFromIncomingContext returns the metadata value corresponding to the metadata
|
||||
// key from the incoming metadata if it exists. Keys are matched in a case insensitive
|
||||
// manner.
|
||||
func ValueFromIncomingContext(ctx context.Context, key string) []string {
|
||||
raw, ok := ctx.Value(metadataIncomingKey{}).(rawMetadata)
|
||||
if !ok {
|
||||
return nil
|
||||
}
|
||||
|
||||
if v, ok := raw.md[key]; ok {
|
||||
return copyOf(v)
|
||||
}
|
||||
for k, v := range raw.md {
|
||||
// Case insensitive comparison: Metadata is a map, and there's no guarantee
|
||||
// that the Metadata attached to the context is created using our helper
|
||||
// functions.
|
||||
if strings.EqualFold(k, key) {
|
||||
return copyOf(v)
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// ValueFromCurrentContext returns the metadata value corresponding to the metadata
|
||||
// key from the incoming metadata if it exists. Keys are matched in a case insensitive
|
||||
// manner.
|
||||
func ValueFromCurrentContext(ctx context.Context, key string) []string {
|
||||
md, ok := ctx.Value(metadataCurrentKey{}).(rawMetadata)
|
||||
if !ok {
|
||||
return nil
|
||||
}
|
||||
|
||||
if v, ok := md.md[key]; ok {
|
||||
return copyOf(v)
|
||||
}
|
||||
for k, v := range md.md {
|
||||
// Case insensitive comparison: Metadata is a map, and there's no guarantee
|
||||
// that the Metadata attached to the context is created using our helper
|
||||
// functions.
|
||||
if strings.EqualFold(k, key) {
|
||||
return copyOf(v)
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// MustOutgoingContext returns the outgoing metadata in ctx.
|
||||
func MustOutgoingContext(ctx context.Context) Metadata {
|
||||
md, ok := FromOutgoingContext(ctx)
|
||||
if !ok {
|
||||
panic("missing metadata")
|
||||
}
|
||||
return md
|
||||
}
|
||||
|
||||
// ValueFromOutgoingContext returns the metadata value corresponding to the metadata
|
||||
// key from the incoming metadata if it exists. Keys are matched in a case insensitive
|
||||
// manner.
|
||||
func ValueFromOutgoingContext(ctx context.Context, key string) []string {
|
||||
md, ok := ctx.Value(metadataOutgoingKey{}).(rawMetadata)
|
||||
if !ok {
|
||||
return nil
|
||||
}
|
||||
|
||||
if v, ok := md.md[key]; ok {
|
||||
return copyOf(v)
|
||||
}
|
||||
for k, v := range md.md {
|
||||
// Case insensitive comparison: Metadata is a map, and there's no guarantee
|
||||
// that the Metadata attached to the context is created using our helper
|
||||
// functions.
|
||||
if strings.EqualFold(k, key) {
|
||||
return copyOf(v)
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func copyOf(v []string) []string {
|
||||
vals := make([]string, len(v))
|
||||
copy(vals, v)
|
||||
return vals
|
||||
}
|
||||
|
||||
// FromOutgoingContext returns the outgoing metadata in ctx if it exists.
|
||||
func FromOutgoingContext(ctx context.Context) (Metadata, bool) {
|
||||
raw, ok := ctx.Value(metadataOutgoingKey{}).(rawMetadata)
|
||||
if !ok {
|
||||
return nil, false
|
||||
}
|
||||
|
||||
metadataSize := len(raw.md)
|
||||
for i := range raw.added {
|
||||
metadataSize += len(raw.added[i]) / 2
|
||||
}
|
||||
|
||||
out := make(Metadata, metadataSize)
|
||||
for k, v := range raw.md {
|
||||
out[k] = copyOf(v)
|
||||
}
|
||||
for _, added := range raw.added {
|
||||
if len(added)%2 == 1 {
|
||||
panic(fmt.Sprintf("metadata: FromOutgoingContext got an odd number of input pairs for metadata: %d", len(added)))
|
||||
}
|
||||
|
||||
for i := 0; i < len(added); i += 2 {
|
||||
out[added[i]] = append(out[added[i]], added[i+1])
|
||||
}
|
||||
}
|
||||
return out, ok
|
||||
}
|
||||
|
||||
type rawMetadata struct {
|
||||
md Metadata
|
||||
added [][]string
|
||||
}
|
||||
|
||||
// Iterator used to iterate over metadata with order
|
||||
type Iterator struct {
|
||||
md Metadata
|
||||
@@ -47,14 +466,18 @@ type Iterator struct {
|
||||
}
|
||||
|
||||
// Next advance iterator to next element
|
||||
func (iter *Iterator) Next(k, v *string) bool {
|
||||
func (iter *Iterator) Next(k *string, v *[]string) bool {
|
||||
if iter.cur+1 > iter.cnt {
|
||||
return false
|
||||
}
|
||||
|
||||
*k = iter.keys[iter.cur]
|
||||
*v = iter.md[*k]
|
||||
iter.cur++
|
||||
if k != nil && v != nil {
|
||||
*k = iter.keys[iter.cur]
|
||||
vv := iter.md[*k]
|
||||
*v = make([]string, len(vv))
|
||||
copy(*v, vv)
|
||||
iter.cur++
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
@@ -68,102 +491,3 @@ func (md Metadata) Iterator() *Iterator {
|
||||
sort.Strings(iter.keys)
|
||||
return iter
|
||||
}
|
||||
|
||||
func (md Metadata) MustGet(key string) string {
|
||||
val, ok := md.Get(key)
|
||||
if !ok {
|
||||
panic("missing metadata key")
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
// Get returns value from metadata by key
|
||||
func (md Metadata) Get(key string) (string, bool) {
|
||||
// fast path
|
||||
val, ok := md[key]
|
||||
if !ok {
|
||||
// slow path
|
||||
val, ok = md[textproto.CanonicalMIMEHeaderKey(key)]
|
||||
if !ok {
|
||||
val, ok = md[strings.ToLower(key)]
|
||||
}
|
||||
}
|
||||
return val, ok
|
||||
}
|
||||
|
||||
// Set is used to store value in metadata
|
||||
func (md Metadata) Set(kv ...string) {
|
||||
if len(kv)%2 == 1 {
|
||||
kv = kv[:len(kv)-1]
|
||||
}
|
||||
for idx := 0; idx < len(kv); idx += 2 {
|
||||
md[textproto.CanonicalMIMEHeaderKey(kv[idx])] = kv[idx+1]
|
||||
}
|
||||
}
|
||||
|
||||
// Del is used to remove value from metadata
|
||||
func (md Metadata) Del(keys ...string) {
|
||||
for _, key := range keys {
|
||||
// fast path
|
||||
delete(md, key)
|
||||
// slow path
|
||||
delete(md, textproto.CanonicalMIMEHeaderKey(key))
|
||||
// very slow path
|
||||
delete(md, strings.ToLower(key))
|
||||
}
|
||||
}
|
||||
|
||||
// Copy makes a copy of the metadata
|
||||
func (md Metadata) CopyTo(dst Metadata) {
|
||||
for k, v := range md {
|
||||
dst[k] = v
|
||||
}
|
||||
}
|
||||
|
||||
// Copy makes a copy of the metadata
|
||||
func Copy(md Metadata, exclude ...string) Metadata {
|
||||
nmd := New(len(md))
|
||||
for k, v := range md {
|
||||
nmd[k] = v
|
||||
}
|
||||
nmd.Del(exclude...)
|
||||
return nmd
|
||||
}
|
||||
|
||||
// New return new sized metadata
|
||||
func New(size int) Metadata {
|
||||
if size == 0 {
|
||||
size = defaultMetadataSize
|
||||
}
|
||||
return make(Metadata, size)
|
||||
}
|
||||
|
||||
// Merge merges metadata to existing metadata, overwriting if specified
|
||||
func Merge(omd Metadata, mmd Metadata, overwrite bool) Metadata {
|
||||
var ok bool
|
||||
nmd := Copy(omd)
|
||||
for key, val := range mmd {
|
||||
_, ok = nmd[key]
|
||||
switch {
|
||||
case ok && !overwrite:
|
||||
continue
|
||||
case val != "":
|
||||
nmd[key] = val
|
||||
case ok && val == "":
|
||||
nmd.Del(key)
|
||||
}
|
||||
}
|
||||
return nmd
|
||||
}
|
||||
|
||||
// Pairs from which metadata created
|
||||
func Pairs(kv ...string) (Metadata, bool) {
|
||||
if len(kv)%2 == 1 {
|
||||
return nil, false
|
||||
}
|
||||
md := New(len(kv) / 2)
|
||||
for idx := 0; idx < len(kv); idx += 2 {
|
||||
md[kv[idx]] = kv[idx+1]
|
||||
}
|
||||
return md, true
|
||||
}
|
||||
|
||||
@@ -1,282 +0,0 @@
|
||||
//go:build exclude
|
||||
|
||||
// Package metadata TODO need compare with micro metadata
|
||||
package metadata // import "google.golang.org/grpc/metadata"
|
||||
|
||||
import (
|
||||
"context"
|
||||
"fmt"
|
||||
"strings"
|
||||
)
|
||||
|
||||
// MD is a mapping from metadata keys to values. Users should use the following
|
||||
// two convenience functions New and Pairs to generate MD.
|
||||
type MD map[string][]string
|
||||
|
||||
type Metadata map[string]string
|
||||
|
||||
// New creates an MD from a given key-value map.
|
||||
//
|
||||
// Only the following ASCII characters are allowed in keys:
|
||||
// - digits: 0-9
|
||||
// - uppercase letters: A-Z (normalized to lower)
|
||||
// - lowercase letters: a-z
|
||||
// - special characters: -_.
|
||||
//
|
||||
// Uppercase letters are automatically converted to lowercase.
|
||||
//
|
||||
// Keys beginning with "grpc-" are reserved for grpc-internal use only and may
|
||||
// result in errors if set in metadata.
|
||||
func New(m map[string]string) MD {
|
||||
md := make(MD, len(m))
|
||||
for k, val := range m {
|
||||
key := strings.ToLower(k)
|
||||
md[key] = append(md[key], val)
|
||||
}
|
||||
return md
|
||||
}
|
||||
|
||||
// Pairs returns an MD formed by the mapping of key, value ...
|
||||
// Pairs panics if len(kv) is odd.
|
||||
//
|
||||
// Only the following ASCII characters are allowed in keys:
|
||||
// - digits: 0-9
|
||||
// - uppercase letters: A-Z (normalized to lower)
|
||||
// - lowercase letters: a-z
|
||||
// - special characters: -_.
|
||||
//
|
||||
// Uppercase letters are automatically converted to lowercase.
|
||||
//
|
||||
// Keys beginning with "grpc-" are reserved for grpc-internal use only and may
|
||||
// result in errors if set in metadata.
|
||||
func Pairs(kv ...string) MD {
|
||||
if len(kv)%2 == 1 {
|
||||
panic(fmt.Sprintf("metadata: Pairs got the odd number of input pairs for metadata: %d", len(kv)))
|
||||
}
|
||||
md := make(MD, len(kv)/2)
|
||||
for i := 0; i < len(kv); i += 2 {
|
||||
key := strings.ToLower(kv[i])
|
||||
md[key] = append(md[key], kv[i+1])
|
||||
}
|
||||
return md
|
||||
}
|
||||
|
||||
// Len returns the number of items in md.
|
||||
func (md MD) Len() int {
|
||||
return len(md)
|
||||
}
|
||||
|
||||
// Copy returns a copy of md.
|
||||
func (md MD) Copy() MD {
|
||||
out := make(MD, len(md))
|
||||
for k, v := range md {
|
||||
out[k] = copyOf(v)
|
||||
}
|
||||
return out
|
||||
}
|
||||
|
||||
// Get obtains the values for a given key.
|
||||
//
|
||||
// k is converted to lowercase before searching in md.
|
||||
func (md MD) Get(k string) []string {
|
||||
k = strings.ToLower(k)
|
||||
return md[k]
|
||||
}
|
||||
|
||||
// Set sets the value of a given key with a slice of values.
|
||||
//
|
||||
// k is converted to lowercase before storing in md.
|
||||
func (md MD) Set(k string, vals ...string) {
|
||||
if len(vals) == 0 {
|
||||
return
|
||||
}
|
||||
k = strings.ToLower(k)
|
||||
md[k] = vals
|
||||
}
|
||||
|
||||
// Append adds the values to key k, not overwriting what was already stored at
|
||||
// that key.
|
||||
//
|
||||
// k is converted to lowercase before storing in md.
|
||||
func (md MD) Append(k string, vals ...string) {
|
||||
if len(vals) == 0 {
|
||||
return
|
||||
}
|
||||
k = strings.ToLower(k)
|
||||
md[k] = append(md[k], vals...)
|
||||
}
|
||||
|
||||
// Delete removes the values for a given key k which is converted to lowercase
|
||||
// before removing it from md.
|
||||
func (md MD) Delete(k string) {
|
||||
k = strings.ToLower(k)
|
||||
delete(md, k)
|
||||
}
|
||||
|
||||
// Join joins any number of mds into a single MD.
|
||||
//
|
||||
// The order of values for each key is determined by the order in which the mds
|
||||
// containing those values are presented to Join.
|
||||
func Join(mds ...MD) MD {
|
||||
out := MD{}
|
||||
for _, md := range mds {
|
||||
for k, v := range md {
|
||||
out[k] = append(out[k], v...)
|
||||
}
|
||||
}
|
||||
return out
|
||||
}
|
||||
|
||||
type mdIncomingKey struct{}
|
||||
type mdOutgoingKey struct{}
|
||||
|
||||
// NewIncomingContext creates a new context with incoming md attached. md must
|
||||
// not be modified after calling this function.
|
||||
func NewIncomingContext(ctx context.Context, md Metadata) context.Context {
|
||||
in := make(MD, len(md))
|
||||
for k, v := range md {
|
||||
in[k] = []string{v}
|
||||
}
|
||||
|
||||
return context.WithValue(ctx, mdIncomingKey{}, in)
|
||||
}
|
||||
|
||||
// NewOutgoingContext creates a new context with outgoing md attached. If used
|
||||
// in conjunction with AppendToOutgoingContext, NewOutgoingContext will
|
||||
// overwrite any previously-appended metadata. md must not be modified after
|
||||
// calling this function.
|
||||
func NewOutgoingContext(ctx context.Context, md Metadata) context.Context {
|
||||
out := make(MD, len(md))
|
||||
for k, v := range md {
|
||||
out[k] = []string{v}
|
||||
}
|
||||
|
||||
return context.WithValue(ctx, mdOutgoingKey{}, rawMD{md: out})
|
||||
}
|
||||
|
||||
// AppendToOutgoingContext returns a new context with the provided kv merged
|
||||
// with any existing metadata in the context. Please refer to the documentation
|
||||
// of Pairs for a description of kv.
|
||||
func AppendToOutgoingContext(ctx context.Context, kv ...string) context.Context {
|
||||
if len(kv)%2 == 1 {
|
||||
panic(fmt.Sprintf("metadata: AppendToOutgoingContext got an odd number of input pairs for metadata: %d", len(kv)))
|
||||
}
|
||||
md, _ := ctx.Value(mdOutgoingKey{}).(rawMD)
|
||||
added := make([][]string, len(md.added)+1)
|
||||
copy(added, md.added)
|
||||
kvCopy := make([]string, 0, len(kv))
|
||||
for i := 0; i < len(kv); i += 2 {
|
||||
kvCopy = append(kvCopy, strings.ToLower(kv[i]), kv[i+1])
|
||||
}
|
||||
added[len(added)-1] = kvCopy
|
||||
return context.WithValue(ctx, mdOutgoingKey{}, rawMD{md: md.md, added: added})
|
||||
}
|
||||
|
||||
// FromIncomingContext returns the incoming metadata in ctx if it exists.
|
||||
//
|
||||
// All keys in the returned MD are lowercase.
|
||||
func FromIncomingContext(ctx context.Context) (Metadata, bool) {
|
||||
md, ok := ctx.Value(mdIncomingKey{}).(MD)
|
||||
if !ok {
|
||||
return nil, false
|
||||
}
|
||||
out := make(Metadata, len(md))
|
||||
for k, v := range md {
|
||||
// We need to manually convert all keys to lower case, because MD is a
|
||||
// map, and there's no guarantee that the MD attached to the context is
|
||||
// created using our helper functions.
|
||||
|
||||
if len(v) > 0 {
|
||||
key := strings.ToLower(k)
|
||||
out[key] = v[0]
|
||||
}
|
||||
|
||||
}
|
||||
return out, true
|
||||
}
|
||||
|
||||
// ValueFromIncomingContext returns the metadata value corresponding to the metadata
|
||||
// key from the incoming metadata if it exists. Keys are matched in a case insensitive
|
||||
// manner.
|
||||
func ValueFromIncomingContext(ctx context.Context, key string) []string {
|
||||
md, ok := ctx.Value(mdIncomingKey{}).(MD)
|
||||
if !ok {
|
||||
return nil
|
||||
}
|
||||
|
||||
if v, ok := md[key]; ok {
|
||||
return copyOf(v)
|
||||
}
|
||||
for k, v := range md {
|
||||
// Case insensitive comparison: MD is a map, and there's no guarantee
|
||||
// that the MD attached to the context is created using our helper
|
||||
// functions.
|
||||
if strings.EqualFold(k, key) {
|
||||
return copyOf(v)
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func copyOf(v []string) []string {
|
||||
vals := make([]string, len(v))
|
||||
copy(vals, v)
|
||||
return vals
|
||||
}
|
||||
|
||||
// fromOutgoingContextRaw returns the un-merged, intermediary contents of rawMD.
|
||||
//
|
||||
// Remember to perform strings.ToLower on the keys, for both the returned MD (MD
|
||||
// is a map, there's no guarantee it's created using our helper functions) and
|
||||
// the extra kv pairs (AppendToOutgoingContext doesn't turn them into
|
||||
// lowercase).
|
||||
func fromOutgoingContextRaw(ctx context.Context) (MD, [][]string, bool) {
|
||||
raw, ok := ctx.Value(mdOutgoingKey{}).(rawMD)
|
||||
if !ok {
|
||||
return nil, nil, false
|
||||
}
|
||||
|
||||
return raw.md, raw.added, true
|
||||
}
|
||||
|
||||
// FromOutgoingContext returns the outgoing metadata in ctx if it exists.
|
||||
//
|
||||
// All keys in the returned MD are lowercase.
|
||||
func FromOutgoingContext(ctx context.Context) (Metadata, bool) {
|
||||
raw, ok := ctx.Value(mdOutgoingKey{}).(rawMD)
|
||||
if !ok {
|
||||
return nil, false
|
||||
}
|
||||
|
||||
mdSize := len(raw.md)
|
||||
for i := range raw.added {
|
||||
mdSize += len(raw.added[i]) / 2
|
||||
}
|
||||
|
||||
out := make(Metadata, mdSize)
|
||||
for k, v := range raw.md {
|
||||
// We need to manually convert all keys to lower case, because MD is a
|
||||
// map, and there's no guarantee that the MD attached to the context is
|
||||
// created using our helper functions.
|
||||
if len(v) > 0 {
|
||||
key := strings.ToLower(k)
|
||||
out[key] = v[0]
|
||||
}
|
||||
}
|
||||
for _, added := range raw.added {
|
||||
if len(added)%2 == 1 {
|
||||
panic(fmt.Sprintf("metadata: FromOutgoingContext got an odd number of input pairs for metadata: %d", len(added)))
|
||||
}
|
||||
|
||||
for i := 0; i < len(added); i += 2 {
|
||||
key := strings.ToLower(added[i])
|
||||
out[key] = added[i+1]
|
||||
}
|
||||
}
|
||||
return out, ok
|
||||
}
|
||||
|
||||
type rawMD struct {
|
||||
md MD
|
||||
added [][]string
|
||||
}
|
||||
@@ -5,10 +5,21 @@ import (
|
||||
"testing"
|
||||
)
|
||||
|
||||
/*
|
||||
func TestAppendOutgoingContextModify(t *testing.T) {
|
||||
md := Pairs("key1", "val1")
|
||||
ctx := NewOutgoingContext(context.TODO(), md)
|
||||
nctx := AppendOutgoingContext(ctx, "key1", "val3", "key2", "val2")
|
||||
_ = nctx
|
||||
omd := MustOutgoingContext(nctx)
|
||||
fmt.Printf("%#+v\n", omd)
|
||||
}
|
||||
*/
|
||||
|
||||
func TestLowercase(t *testing.T) {
|
||||
md := New(1)
|
||||
md["x-request-id"] = "12345"
|
||||
v, ok := md.Get("X-Request-Id")
|
||||
md["x-request-id"] = []string{"12345"}
|
||||
v, ok := md.GetJoined("X-Request-Id")
|
||||
if !ok || v == "" {
|
||||
t.Fatalf("metadata invalid %#+v", md)
|
||||
}
|
||||
@@ -38,15 +49,12 @@ func TestMultipleUsage(t *testing.T) {
|
||||
|
||||
func TestMetadataSetMultiple(t *testing.T) {
|
||||
md := New(4)
|
||||
md.Set("key1", "val1", "key2", "val2", "key3")
|
||||
md.Set("key1", "val1", "key2", "val2")
|
||||
|
||||
if v, ok := md.Get("key1"); !ok || v != "val1" {
|
||||
if v, ok := md.GetJoined("key1"); !ok || v != "val1" {
|
||||
t.Fatalf("invalid kv %#+v", md)
|
||||
}
|
||||
if v, ok := md.Get("key2"); !ok || v != "val2" {
|
||||
t.Fatalf("invalid kv %#+v", md)
|
||||
}
|
||||
if _, ok := md.Get("key3"); ok {
|
||||
if v, ok := md.GetJoined("key2"); !ok || v != "val2" {
|
||||
t.Fatalf("invalid kv %#+v", md)
|
||||
}
|
||||
}
|
||||
@@ -64,22 +72,12 @@ func TestAppend(t *testing.T) {
|
||||
}
|
||||
|
||||
func TestPairs(t *testing.T) {
|
||||
md, ok := Pairs("key1", "val1", "key2", "val2")
|
||||
if !ok {
|
||||
t.Fatal("odd number of kv")
|
||||
}
|
||||
if _, ok = md.Get("key1"); !ok {
|
||||
md := Pairs("key1", "val1", "key2", "val2")
|
||||
if _, ok := md.Get("key1"); !ok {
|
||||
t.Fatal("key1 not found")
|
||||
}
|
||||
}
|
||||
|
||||
func testCtx(ctx context.Context) {
|
||||
md := New(2)
|
||||
md.Set("Key1", "Val1_new")
|
||||
md.Set("Key3", "Val3")
|
||||
SetOutgoingContext(ctx, md)
|
||||
}
|
||||
|
||||
func TestPassing(t *testing.T) {
|
||||
ctx := context.TODO()
|
||||
md1 := New(2)
|
||||
@@ -87,69 +85,62 @@ func TestPassing(t *testing.T) {
|
||||
md1.Set("Key2", "Val2")
|
||||
|
||||
ctx = NewIncomingContext(ctx, md1)
|
||||
testCtx(ctx)
|
||||
|
||||
_, ok := FromOutgoingContext(ctx)
|
||||
if ok {
|
||||
t.Fatalf("create outgoing context")
|
||||
}
|
||||
|
||||
ctx = NewOutgoingContext(ctx, New(1))
|
||||
testCtx(ctx)
|
||||
ctx = NewOutgoingContext(ctx, md1)
|
||||
|
||||
md, ok := FromOutgoingContext(ctx)
|
||||
if !ok {
|
||||
t.Fatalf("missing metadata from outgoing context")
|
||||
}
|
||||
if v, ok := md.Get("Key1"); !ok || v != "Val1_new" {
|
||||
if v, ok := md.Get("Key1"); !ok || v[0] != "Val1" {
|
||||
t.Fatalf("invalid metadata value %#+v", md)
|
||||
}
|
||||
}
|
||||
|
||||
func TestMerge(t *testing.T) {
|
||||
omd := Metadata{
|
||||
"key1": "val1",
|
||||
}
|
||||
mmd := Metadata{
|
||||
"key2": "val2",
|
||||
}
|
||||
|
||||
nmd := Merge(omd, mmd, true)
|
||||
if len(nmd) != 2 {
|
||||
t.Fatalf("merge failed: %v", nmd)
|
||||
}
|
||||
}
|
||||
|
||||
func TestIterator(_ *testing.T) {
|
||||
md := Metadata{
|
||||
"1Last": "last",
|
||||
"2First": "first",
|
||||
"3Second": "second",
|
||||
}
|
||||
func TestIterator(t *testing.T) {
|
||||
md := Pairs(
|
||||
"1Last", "last",
|
||||
"2First", "first",
|
||||
"3Second", "second",
|
||||
)
|
||||
|
||||
iter := md.Iterator()
|
||||
var k, v string
|
||||
|
||||
var k string
|
||||
var v []string
|
||||
chk := New(3)
|
||||
for iter.Next(&k, &v) {
|
||||
// fmt.Printf("k: %s, v: %s\n", k, v)
|
||||
chk[k] = v
|
||||
}
|
||||
|
||||
for k, v := range chk {
|
||||
if cv, ok := md[k]; !ok || len(cv) != len(v) || cv[0] != v[0] {
|
||||
t.Fatalf("XXXX %#+v %#+v", chk, md)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestMedataCanonicalKey(t *testing.T) {
|
||||
md := New(1)
|
||||
md.Set("x-request-id", "12345")
|
||||
v, ok := md.Get("x-request-id")
|
||||
v, ok := md.GetJoined("x-request-id")
|
||||
if !ok {
|
||||
t.Fatalf("failed to get x-request-id")
|
||||
} else if v != "12345" {
|
||||
t.Fatalf("invalid metadata value: %s != %s", "12345", v)
|
||||
}
|
||||
|
||||
v, ok = md.Get("X-Request-Id")
|
||||
v, ok = md.GetJoined("X-Request-Id")
|
||||
if !ok {
|
||||
t.Fatalf("failed to get x-request-id")
|
||||
} else if v != "12345" {
|
||||
t.Fatalf("invalid metadata value: %s != %s", "12345", v)
|
||||
}
|
||||
v, ok = md.Get("X-Request-ID")
|
||||
v, ok = md.GetJoined("X-Request-ID")
|
||||
if !ok {
|
||||
t.Fatalf("failed to get x-request-id")
|
||||
} else if v != "12345" {
|
||||
@@ -162,7 +153,7 @@ func TestMetadataSet(t *testing.T) {
|
||||
|
||||
md.Set("Key", "val")
|
||||
|
||||
val, ok := md.Get("Key")
|
||||
val, ok := md.GetJoined("Key")
|
||||
if !ok {
|
||||
t.Fatal("key Key not found")
|
||||
}
|
||||
@@ -173,8 +164,8 @@ func TestMetadataSet(t *testing.T) {
|
||||
|
||||
func TestMetadataDelete(t *testing.T) {
|
||||
md := Metadata{
|
||||
"Foo": "bar",
|
||||
"Baz": "empty",
|
||||
"Foo": []string{"bar"},
|
||||
"Baz": []string{"empty"},
|
||||
}
|
||||
|
||||
md.Del("Baz")
|
||||
@@ -184,25 +175,16 @@ func TestMetadataDelete(t *testing.T) {
|
||||
}
|
||||
}
|
||||
|
||||
func TestNilContext(t *testing.T) {
|
||||
var ctx context.Context
|
||||
|
||||
_, ok := FromContext(ctx)
|
||||
if ok {
|
||||
t.Fatal("nil context")
|
||||
}
|
||||
}
|
||||
|
||||
func TestMetadataCopy(t *testing.T) {
|
||||
md := Metadata{
|
||||
"Foo": "bar",
|
||||
"Bar": "baz",
|
||||
"Foo": []string{"bar"},
|
||||
"Bar": []string{"baz"},
|
||||
}
|
||||
|
||||
cp := Copy(md)
|
||||
|
||||
for k, v := range md {
|
||||
if cv := cp[k]; cv != v {
|
||||
if cv := cp[k]; cv[0] != v[0] {
|
||||
t.Fatalf("Got %s:%s for %s:%s", k, cv, k, v)
|
||||
}
|
||||
}
|
||||
@@ -210,7 +192,7 @@ func TestMetadataCopy(t *testing.T) {
|
||||
|
||||
func TestMetadataContext(t *testing.T) {
|
||||
md := Metadata{
|
||||
"Foo": "bar",
|
||||
"Foo": []string{"bar"},
|
||||
}
|
||||
|
||||
ctx := NewContext(context.TODO(), md)
|
||||
@@ -220,7 +202,7 @@ func TestMetadataContext(t *testing.T) {
|
||||
t.Errorf("Unexpected error retrieving metadata, got %t", ok)
|
||||
}
|
||||
|
||||
if emd["Foo"] != md["Foo"] {
|
||||
if emd["Foo"][0] != md["Foo"][0] {
|
||||
t.Errorf("Expected key: %s val: %s, got key: %s val: %s", "Foo", md["Foo"], "Foo", emd["Foo"])
|
||||
}
|
||||
|
||||
@@ -229,13 +211,88 @@ func TestMetadataContext(t *testing.T) {
|
||||
}
|
||||
}
|
||||
|
||||
func TestCopy(t *testing.T) {
|
||||
md := New(2)
|
||||
md.Set("key1", "val1", "key2", "val2")
|
||||
nmd := Copy(md, "key2")
|
||||
if len(nmd) != 1 {
|
||||
t.Fatal("Copy exclude not works")
|
||||
} else if nmd["Key1"] != "val1" {
|
||||
t.Fatal("Copy exclude not works")
|
||||
func TestFromContext(t *testing.T) {
|
||||
ctx := context.WithValue(context.TODO(), metadataCurrentKey{}, rawMetadata{md: New(0)})
|
||||
|
||||
c, ok := FromContext(ctx)
|
||||
if c == nil || !ok {
|
||||
t.Fatal("FromContext not works")
|
||||
}
|
||||
}
|
||||
|
||||
func TestNewContext(t *testing.T) {
|
||||
ctx := NewContext(context.TODO(), New(0))
|
||||
|
||||
c, ok := FromContext(ctx)
|
||||
if c == nil || !ok {
|
||||
t.Fatal("NewContext not works")
|
||||
}
|
||||
}
|
||||
|
||||
func TestFromIncomingContext(t *testing.T) {
|
||||
ctx := context.WithValue(context.TODO(), metadataIncomingKey{}, rawMetadata{md: New(0)})
|
||||
|
||||
c, ok := FromIncomingContext(ctx)
|
||||
if c == nil || !ok {
|
||||
t.Fatal("FromIncomingContext not works")
|
||||
}
|
||||
}
|
||||
|
||||
func TestFromOutgoingContext(t *testing.T) {
|
||||
ctx := context.WithValue(context.TODO(), metadataOutgoingKey{}, rawMetadata{md: New(0)})
|
||||
|
||||
c, ok := FromOutgoingContext(ctx)
|
||||
if c == nil || !ok {
|
||||
t.Fatal("FromOutgoingContext not works")
|
||||
}
|
||||
}
|
||||
|
||||
func TestNewIncomingContext(t *testing.T) {
|
||||
md := New(1)
|
||||
md.Set("key", "val")
|
||||
ctx := NewIncomingContext(context.TODO(), md)
|
||||
|
||||
c, ok := FromIncomingContext(ctx)
|
||||
if c == nil || !ok {
|
||||
t.Fatal("NewIncomingContext not works")
|
||||
}
|
||||
}
|
||||
|
||||
func TestNewOutgoingContext(t *testing.T) {
|
||||
md := New(1)
|
||||
md.Set("key", "val")
|
||||
ctx := NewOutgoingContext(context.TODO(), md)
|
||||
|
||||
c, ok := FromOutgoingContext(ctx)
|
||||
if c == nil || !ok {
|
||||
t.Fatal("NewOutgoingContext not works")
|
||||
}
|
||||
}
|
||||
|
||||
func TestAppendIncomingContext(t *testing.T) {
|
||||
md := New(1)
|
||||
md.Set("key1", "val1")
|
||||
ctx := AppendIncomingContext(context.TODO(), "key2", "val2")
|
||||
|
||||
nmd, ok := FromIncomingContext(ctx)
|
||||
if nmd == nil || !ok {
|
||||
t.Fatal("AppendIncomingContext not works")
|
||||
}
|
||||
if v, ok := nmd.GetJoined("key2"); !ok || v != "val2" {
|
||||
t.Fatal("AppendIncomingContext not works")
|
||||
}
|
||||
}
|
||||
|
||||
func TestAppendOutgoingContext(t *testing.T) {
|
||||
md := New(1)
|
||||
md.Set("key1", "val1")
|
||||
ctx := AppendOutgoingContext(context.TODO(), "key2", "val2")
|
||||
|
||||
nmd, ok := FromOutgoingContext(ctx)
|
||||
if nmd == nil || !ok {
|
||||
t.Fatal("AppendOutgoingContext not works")
|
||||
}
|
||||
if v, ok := nmd.GetJoined("key2"); !ok || v != "val2" {
|
||||
t.Fatal("AppendOutgoingContext not works")
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user