/opt/canhelp/node_modules/@opentelemetry/api/build/esm/trace
Edit: /opt/canhelp/node_modules/@opentelemetry/api/build/esm/trace/NoopTracer.js (2180B)
/*
* Copyright The OpenTelemetry Authors
* SPDX-License-Identifier: Apache-2.0
*/
import { ContextAPI } from '../api/context';
import { getSpanContext, setSpan } from '../trace/context-utils';
import { NonRecordingSpan } from './NonRecordingSpan';
import { isSpanContextValid } from './spancontext-utils';
const contextApi = ContextAPI.getInstance();
/**
* No-op implementations of {@link Tracer}.
*/
export class NoopTracer {
// startSpan starts a noop span.
startSpan(name, options, context = contextApi.active()) {
const root = Boolean(options === null || options === void 0 ? void 0 : options.root);
if (root) {
return new NonRecordingSpan();
}
const parentFromContext = context && getSpanContext(context);
if (isSpanContext(parentFromContext) &&
isSpanContextValid(parentFromContext)) {
return new NonRecordingSpan(parentFromContext);
}
else {
return new NonRecordingSpan();
}
}
startActiveSpan(name, arg2, arg3, arg4) {
let opts;
let ctx;
let fn;
if (arguments.length < 2) {
return;
}
else if (arguments.length === 2) {
fn = arg2;
}
else if (arguments.length === 3) {
opts = arg2;
fn = arg3;
}
else {
opts = arg2;
ctx = arg3;
fn = arg4;
}
const parentContext = ctx !== null && ctx !== void 0 ? ctx : contextApi.active();
const span = this.startSpan(name, opts, parentContext);
const contextWithSpanSet = setSpan(parentContext, span);
return contextApi.with(contextWithSpanSet, fn, undefined, span);
}
}
function isSpanContext(spanContext) {
return (spanContext !== null &&
typeof spanContext === 'object' &&
'spanId' in spanContext &&
typeof spanContext['spanId'] === 'string' &&
'traceId' in spanContext &&
typeof spanContext['traceId'] === 'string' &&
'traceFlags' in spanContext &&
typeof spanContext['traceFlags'] === 'number');
}
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