forked from open-telemetry/opentelemetry-js
/
InMemorySpanExporter.ts
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/
InMemorySpanExporter.ts
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/*
* Copyright The 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
*
* https://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.
*/
import { SpanExporter } from './SpanExporter';
import { ReadableSpan } from './ReadableSpan';
import { ExportResult, ExportResultCode } from '@opentelemetry/core';
/**
* This class can be used for testing purposes. It stores the exported spans
* in a list in memory that can be retrieved using the `getFinishedSpans()`
* method.
*/
export class InMemorySpanExporter implements SpanExporter {
private _finishedSpans: ReadableSpan[] = [];
/**
* Indicates if the exporter has been "shutdown."
* When false, exported spans will not be stored in-memory.
*/
protected _stopped = false;
export(
spans: ReadableSpan[],
resultCallback: (result: ExportResult) => void
): void {
if (this._stopped)
return resultCallback({
code: ExportResultCode.FAILED,
error: new Error('Exporter has been stopped'),
});
this._finishedSpans.push(...spans);
setTimeout(() => resultCallback({ code: ExportResultCode.SUCCESS }), 0);
}
shutdown(): Promise<void> {
this._stopped = true;
this._finishedSpans = [];
return Promise.resolve();
}
reset(): void {
this._finishedSpans = [];
}
getFinishedSpans(): ReadableSpan[] {
return this._finishedSpans;
}
}