wehub-resource-sync
86 lines
2.4 KiB
TypeScript
86 lines
2.4 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 { type ExportResult, ExportResultCode, hrTimeToMicroseconds } from "@opentelemetry/core";
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import type { ReadableSpan, SpanExporter } from "@opentelemetry/sdk-trace-base";
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export class LoggerSpanExporter implements SpanExporter {
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/**
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* Export spans.
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* @param spans
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* @param resultCallback
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*/
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export(spans: ReadableSpan[], resultCallback: (result: ExportResult) => void): void {
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return this._sendSpans(spans, resultCallback);
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}
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/**
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* Shutdown the exporter.
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*/
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shutdown(): Promise<void> {
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this._sendSpans([]);
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return this.forceFlush();
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}
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/**
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* Exports any pending spans in exporter
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*/
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forceFlush(): Promise<void> {
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return Promise.resolve();
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}
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/**
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* converts span info into more readable format
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* @param span
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*/
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private _exportInfo(span: ReadableSpan) {
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const parentSpanId = span.parentSpanContext?.spanId;
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return {
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traceId: span.spanContext().traceId,
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parentId:
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parentSpanId && parentSpanId !== "" && parentSpanId !== "0000000000000000"
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? parentSpanId
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: undefined,
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traceState: span.spanContext().traceState?.serialize(),
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message: span.name,
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spanId: span.spanContext().spanId,
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kind: span.kind,
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timestamp: hrTimeToMicroseconds(span.startTime),
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duration: hrTimeToMicroseconds(span.duration),
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attributes: span.attributes,
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status: span.status,
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events: span.events,
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links: span.links,
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level: "trace",
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};
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}
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/**
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* Showing spans in console
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* @param spans
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* @param done
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*/
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private _sendSpans(spans: ReadableSpan[], done?: (result: ExportResult) => void): void {
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for (const span of spans) {
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console.log(JSON.stringify(this._exportInfo(span)));
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}
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if (done) {
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return done({ code: ExportResultCode.SUCCESS });
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}
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}
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}
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