89 lines
2.3 KiB
TypeScript
89 lines
2.3 KiB
TypeScript
/*
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* 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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* https://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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*/
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import {
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BasicTracerProvider,
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InMemorySpanExporter,
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ReadableSpan,
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Tracer,
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SpanProcessor,
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} from '../../src';
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import { ExportResult, AlwaysOnSampler } from '@opentelemetry/core';
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/**
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* A test-only span exporter that naively simulates triggering instrumentation
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* (creating new spans) during export.
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*/
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export class TestTracingSpanExporter extends InMemorySpanExporter {
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private _exporterCreatedSpans: ReadableSpan[] = [];
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private _tracer: Tracer;
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constructor() {
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super();
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const tracerProvider = new BasicTracerProvider();
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const spanProcessor: SpanProcessor = {
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forceFlush: () => {
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return Promise.resolve();
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},
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onStart: () => {},
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shutdown: () => {
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return Promise.resolve();
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},
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onEnd: span => {
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this._exporterCreatedSpans.push(span);
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},
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};
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tracerProvider.addSpanProcessor(spanProcessor);
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this._tracer = new Tracer(
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{ name: 'default', version: '0.0.1' },
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{ sampler: new AlwaysOnSampler() },
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tracerProvider
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);
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}
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override export(
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spans: ReadableSpan[],
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resultCallback: (result: ExportResult) => void
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): void {
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if (!this._stopped) {
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// Simulates an instrumented exporter by creating a span on the tracer.
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const createdSpan = this._tracer.startSpan('exporter-created-span');
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createdSpan.end();
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}
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super.export(spans, resultCallback);
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}
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override shutdown(): Promise<void> {
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return super.shutdown().then(() => {
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this._exporterCreatedSpans = [];
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});
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}
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override reset() {
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super.reset();
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this._exporterCreatedSpans = [];
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}
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getExporterCreatedSpans(): ReadableSpan[] {
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return this._exporterCreatedSpans;
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}
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}
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