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opentelemetry-go/sdk/trace/simple_span_processor.go

54 lines
1.6 KiB
Go

// Copyright 2019, OpenTelemetry Authors
//
// Licensed 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 trace
import (
"context"
export "go.opentelemetry.io/otel/sdk/export/trace"
)
// SimpleSpanProcessor implements SpanProcessor interfaces. It is used by
// exporters to receive SpanData synchronously when span is finished.
type SimpleSpanProcessor struct {
e export.SpanSyncer
}
var _ SpanProcessor = (*SimpleSpanProcessor)(nil)
// NewSimpleSpanProcessor creates a new instance of SimpleSpanProcessor
// for a given export.
func NewSimpleSpanProcessor(e export.SpanSyncer) *SimpleSpanProcessor {
ssp := &SimpleSpanProcessor{
e: e,
}
return ssp
}
// OnStart method does nothing.
func (ssp *SimpleSpanProcessor) OnStart(sd *export.SpanData) {
}
// OnEnd method exports SpanData using associated export.
func (ssp *SimpleSpanProcessor) OnEnd(sd *export.SpanData) {
if ssp.e != nil && sd.SpanContext.IsSampled() {
ssp.e.ExportSpan(context.Background(), sd)
}
}
// Shutdown method does nothing. There is no data to cleanup.
func (ssp *SimpleSpanProcessor) Shutdown() {
}