/
context.go
56 lines (48 loc) · 1.65 KB
/
context.go
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package stream
import (
"context"
"sofastack.io/sofa-mosn/pkg/buffer"
"sofastack.io/sofa-mosn/pkg/trace"
"sofastack.io/sofa-mosn/pkg/types"
mosnctx "sofastack.io/sofa-mosn/pkg/context"
)
// contextManager
type ContextManager struct {
base context.Context
curr context.Context
}
func (cm *ContextManager) Get() context.Context {
return cm.curr
}
func (cm *ContextManager) Next() {
// buffer context
cm.curr = buffer.NewBufferPoolContext(mosnctx.Clone(cm.base))
}
func (cm *ContextManager) InjectTrace(ctx context.Context, span types.Span) context.Context {
if span != nil {
return mosnctx.WithValue(ctx, types.ContextKeyTraceId, span.TraceId())
}
// generate traceId
return mosnctx.WithValue(ctx, types.ContextKeyTraceId, trace.IdGen().GenerateTraceId())
}
func NewContextManager(base context.Context) *ContextManager {
return &ContextManager{
base: base,
}
}