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https://gitee.com/milvus-io/milvus.git
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61 lines
1.8 KiB
Go
61 lines
1.8 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package contextutil
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import (
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"context"
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"fmt"
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"google.golang.org/grpc/metadata"
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)
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type ctxTenantKey struct{}
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// WithTenantID creates a new context that has tenantID injected.
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func WithTenantID(ctx context.Context, tenantID string) 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, ctxTenantKey{}, tenantID)
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}
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// TenantID tries to retrieve tenantID from the given context.
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// If it doesn't exist, an empty string is returned.
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func TenantID(ctx context.Context) string {
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if requestID, ok := ctx.Value(ctxTenantKey{}).(string); ok {
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return requestID
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}
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return ""
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}
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func AppendToIncomingContext(ctx context.Context, kv ...string) context.Context {
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if len(kv)%2 == 1 {
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panic(fmt.Sprintf("metadata: AppendToOutgoingContext got an odd number of input pairs for metadata: %d", len(kv)))
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}
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md, ok := metadata.FromIncomingContext(ctx)
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if !ok {
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md = metadata.New(make(map[string]string, len(kv)/2))
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}
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for i, s := range kv {
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if i%2 == 0 {
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md.Append(s, kv[i+1])
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}
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}
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return metadata.NewIncomingContext(ctx, md)
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}
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