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// SPDX-License-Identifier: Apache-2.0
import * as fs from 'fs';
import { type AttrMap, type CarrierMap, TraceArgs, type ASpan } from './types.js'
import { Configuration } from './config.js'
import { ResourceAttributes } from './attributes.js'
import { AnacondaCommon } from "./common.js"
import { SpanExporterShim } from './exporter_shims.js';
// ----- values -----
import { diag, DiagConsoleLogger, DiagLogLevel } from '@opentelemetry/api';
import * as otlpTraceHttpNS from '@opentelemetry/exporter-trace-otlp-http';
const { OTLPTraceExporter: OTLPTraceExporterHTTP } = otlpTraceHttpNS;
import * as otlpTraceGrpcNS from '@opentelemetry/exporter-trace-otlp-grpc';
const { OTLPTraceExporter: OTLPTraceExporterGRPC } = otlpTraceGrpcNS;
import * as sdkTraceBaseNS from '@opentelemetry/sdk-trace-base';
const { ConsoleSpanExporter, BatchSpanProcessor } = sdkTraceBaseNS;
import * as sdkTraceNodeNS from '@opentelemetry/sdk-trace-node';
const { NodeTracerProvider } = sdkTraceNodeNS;
import * as api from '@opentelemetry/api';
const { trace, propagation } = api;
import grpc from '@grpc/grpc-js';
const { ChannelCredentials } = grpc;
// ----- types -----
import type { Span, Context } from '@opentelemetry/api';
import type {
SpanExporter as _SpanExporter,
ReadableSpan as _ReadableSpan,
BatchSpanProcessor as _BatchSpanProcessor,
} from '@opentelemetry/sdk-trace-base';
import type { NodeTracerProvider as _NodeTracerProvider } from '@opentelemetry/sdk-trace-node';
import type { ChannelCredentials as _ChannelCredentials } from '@grpc/grpc-js';
// ----- local type aliases (reuse runtime names) -----
type SpanExporter = _SpanExporter;
type ReadableSpan = _ReadableSpan;
type BatchSpanProcessor = _BatchSpanProcessor;
type NodeTracerProvider = _NodeTracerProvider;
type ChannelCredentials = _ChannelCredentials;
export class ASpanImpl implements ASpan {
readonly tracer: AnacondaTrace
readonly ctx: Context;
readonly span: Span;
constructor(tracer: AnacondaTrace, ctx: Context, span: Span) {
this.tracer = tracer
this.ctx = ctx
this.span = span
}
addEvent(name: string, attributes: AttrMap = {}): this {
this.span.addEvent(name, attributes)
return this
}
getCurrentCarrier(): CarrierMap {
let carrier: CarrierMap = {}
propagation.inject(this.ctx, carrier)
return carrier
}
end(): void {
this.span.end();
}
}
export class AnacondaTrace extends AnacondaCommon {
provider: NodeTracerProvider | null = null
private processor: BatchSpanProcessor | undefined
private _tracer: api.Tracer | undefined
parentExporter: SpanExporterShim | undefined
get tracer(): api.Tracer {
if (this._tracer === undefined) {
this._tracer = trace.getTracer(this.serviceName, this.serviceVersion)
}
return this._tracer!
}
constructor(config: Configuration, attributes: ResourceAttributes) {
super(config, attributes)
if (this.isValidOtelUrl(this.config.getTraceEndpointTuple()[0].href) === false) {
console.error(`The traces endpoint URL is not valid: ${this.config.getTraceEndpointTuple()[0].href}`)
return
}
this.setup()
}
async changeConnection(endpoint: URL | undefined, authToken: string | undefined,
certFile: string | undefined, userId: string | undefined): Promise<boolean> {
if (endpoint && this.isValidOtelUrl(endpoint!.href) === false) {
console.error(`The traces endpoint URL is not valid: ${endpoint!.href}`)
return false
}
let [url, token, cert] = this.config.getTraceEndpointTuple()
if (endpoint !== url && endpoint !== undefined) {
this.config.traceEndpoint![0] = endpoint
}
if (authToken !== token) {
this.config.traceEndpoint![1] = authToken
}
if (certFile !== cert) {
this.config.traceEndpoint![2] = certFile
}
let id = userId?.trim()
if (typeof id === 'string' && id.length > 0) {
this.attributes.userId = id
}
var [scheme, ep] = this.transformURL(this.config.traceEndpoint![0])
var creds: ChannelCredentials | undefined = this.readCredentials(scheme, this.config.traceEndpoint![2])
var headers = this.makeHeaders(scheme, authToken)
var exporter = this.makeExporter(scheme, ep, headers, creds)
Iif (exporter === undefined) {
return false
}
await this.processor?.forceFlush()
var oldExporter = await this.parentExporter?.swapExporter(exporter!)
await oldExporter?.shutdown()
return true
}
getTrace(name: string, attributes?: AttrMap, carrier?: CarrierMap, parentObject?: ASpan): ASpan {
let ctx
if (parentObject) { // Highest precidence if both this and carrier are passed
ctx = propagation.extract(api.context.active(), parentObject!.getCurrentCarrier())
} else if (carrier) { // Lowest precidence if both this and parentObject are passed.
ctx = propagation.extract(api.context.active(), carrier!)
} else {
ctx = api.context.active()
}
ctx = this.embedUserIdIfMissing(ctx)
const rootSpan = this.tracer.startSpan(name, {
attributes: this.makeEventAttributes(attributes)
}, ctx)
const ctxWithSpan = trace.setSpan(ctx, rootSpan)
return new ASpanImpl(this, ctxWithSpan, rootSpan)
}
async flush(): Promise<void> {
try {
await this.processor?.forceFlush()
} catch (error) {
// Log export failures instead of crashing the application
// This matches Python SDK behavior where export failures are logged
this._warn(`Trace export failed: ${this.errorMessage(error)}`)
}
}
private embedUserIdIfMissing(ctx: Context): Context {
const currentBaggage = propagation.getBaggage(ctx)
if (currentBaggage?.getEntry("user.id")?.value) {
return ctx
}
if (this.attributes.userId === "") {
return ctx
}
let newBaggage: api.Baggage
Iif (currentBaggage) {
newBaggage = currentBaggage.setEntry("user.id", { value: this.attributes.userId })
} else {
newBaggage = propagation.createBaggage({ "user.id": { value: this.attributes.userId }})
}
return propagation.setBaggage(ctx, newBaggage)
}
private makeExporter(scheme: string, url: URL, httpHeaders: Record<string,string>,
creds?: ChannelCredentials): SpanExporter | undefined {
var exporter: SpanExporter | undefined = undefined
var urlStr = url.href
this._debug(`Creating traces exporter at endpoint ${urlStr}`)
if (scheme === 'grpc:' || scheme === 'grpcs:') {
urlStr = `${url.hostname}:${url.port}`
exporter = new OTLPTraceExporterGRPC({
url: urlStr,
headers: httpHeaders,
credentials: creds
});
} else if (scheme === 'http:' || scheme === 'https:') {
exporter = new OTLPTraceExporterHTTP({
url: urlStr,
headers: httpHeaders
});
} else if (scheme === 'console:') {
exporter = new ConsoleSpanExporter()
} else if (scheme === 'devnull:') {
exporter = new NoopSpanExporter()
} else E{
this._warn(`Received bad scheme for tracing: ${scheme}!`)
}
return exporter
}
makeBatchProcessor(scheme: string, url: URL, httpHeaders: Record<string,string>,
creds?: ChannelCredentials): BatchSpanProcessor | undefined {
var exporter = this.makeExporter(scheme, url, httpHeaders, creds)
Iif (exporter === undefined) {
return undefined
}
this.parentExporter = new SpanExporterShim(exporter!)
return new BatchSpanProcessor(this.parentExporter!, {
scheduledDelayMillis: this.config.getTracesExportIntervalMs()
})
}
readCredentials(scheme: string, certFile?: string): ChannelCredentials | undefined {
var creds: ChannelCredentials | undefined = undefined
if (certFile !== undefined && scheme === ("grpcs:")) {
const certContent = this.readCertFile(certFile)
if (certContent) {
creds = ChannelCredentials.createSsl(Buffer.from(certContent))
} else {
this._warn(`Failed to read certificate file: ${certFile}`)
}
}
return creds
}
private setup(): void {
if (this.config.useDebug) {
diag.setLogger(new DiagConsoleLogger(), DiagLogLevel.DEBUG);
}
var [endpoint, authToken, certFile] = this.config.getTraceEndpointTuple()
Iif (!this.isValidOtelUrl(endpoint.href)) {
console.error(`The traces endpoint URL is not valid: ${endpoint.href}`)
return
}
const scheme = endpoint.protocol
const ep = new URL(endpoint.href)
this._debug(`Connecting to traces endpoint '${ep.href}'.`)
ep.protocol = ep.protocol.replace("grpcs:", "https:")
ep.protocol = ep.protocol.replace("grpc:", "http:")
var creds: ChannelCredentials | undefined = this.readCredentials(scheme, certFile)
const headers: Record<string,string> = authToken ? { 'Authorization': `Bearer ${authToken}` } : {}
const processor: BatchSpanProcessor | undefined = this.makeBatchProcessor(scheme, ep, headers, creds)
if (processor) {
this.processor = processor
this.provider = new NodeTracerProvider({
spanProcessors: [this.processor],
resource: this.resources
})
this.provider!.register()
} else E{
console.warn('Failed to create a batch processor for tracing!')
}
}
}
export class NoopSpanExporter implements SpanExporter {
export(_spans: ReadableSpan[], resultCallback: (result: { code: number }) => void): void {
// Immediately report success without doing anything
resultCallback({ code: 0 });
}
shutdown(): Promise<void> {
return Promise.resolve();
}
forceFlush(): Promise<void> {
return Promise.resolve();
}
}
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