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86 lines
2.5 KiB
Go
86 lines
2.5 KiB
Go
// Copyright The OpenTelemetry Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// 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 tracetest is a testing helper package for the SDK. User can
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// configure no-op or in-memory exporters to verify different SDK behaviors or
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// custom instrumentation.
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package tracetest // import "go.opentelemetry.io/otel/sdk/trace/tracetest"
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import (
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"context"
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"sync"
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"go.opentelemetry.io/otel/sdk/trace"
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)
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var _ trace.SpanExporter = (*NoopExporter)(nil)
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// NewNoopExporter returns a new no-op exporter.
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func NewNoopExporter() *NoopExporter {
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return new(NoopExporter)
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}
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// NoopExporter is an exporter that drops all received spans and performs no
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// action.
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type NoopExporter struct{}
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// ExportSpans handles export of spans by dropping them.
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func (nsb *NoopExporter) ExportSpans(context.Context, []trace.ReadOnlySpan) error { return nil }
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// Shutdown stops the exporter by doing nothing.
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func (nsb *NoopExporter) Shutdown(context.Context) error { return nil }
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var _ trace.SpanExporter = (*InMemoryExporter)(nil)
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// NewInMemoryExporter returns a new InMemoryExporter.
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func NewInMemoryExporter() *InMemoryExporter {
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return new(InMemoryExporter)
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}
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// InMemoryExporter is an exporter that stores all received spans in-memory.
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type InMemoryExporter struct {
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mu sync.Mutex
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ss SpanStubs
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}
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// ExportSpans handles export of spans by storing them in memory.
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func (imsb *InMemoryExporter) ExportSpans(_ context.Context, spans []trace.ReadOnlySpan) error {
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imsb.mu.Lock()
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defer imsb.mu.Unlock()
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imsb.ss = append(imsb.ss, SpanStubsFromReadOnlySpans(spans)...)
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return nil
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}
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// Shutdown stops the exporter by clearing spans held in memory.
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func (imsb *InMemoryExporter) Shutdown(context.Context) error {
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imsb.Reset()
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return nil
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}
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// Reset the current in-memory storage.
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func (imsb *InMemoryExporter) Reset() {
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imsb.mu.Lock()
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defer imsb.mu.Unlock()
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imsb.ss = nil
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}
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// GetSpans returns the current in-memory stored spans.
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func (imsb *InMemoryExporter) GetSpans() SpanStubs {
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imsb.mu.Lock()
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defer imsb.mu.Unlock()
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ret := make(SpanStubs, len(imsb.ss))
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copy(ret, imsb.ss)
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return ret
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}
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