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// SPDX-License-Identifier: Apache-2.0
import { type ResourceMetrics, type PushMetricExporter } from '@opentelemetry/sdk-metrics';
import { type ReadableSpan, type SpanExporter } from '@opentelemetry/sdk-trace-base'
import { type ExportResult, ExportResultCode } from '@opentelemetry/core';
import { Lock } from './lock_object.js'
export class MetricExporterShim implements PushMetricExporter {
private _internalExporter: PushMetricExporter;
private _shutdown = false;
private readonly _lock = new Lock();
constructor(initial: PushMetricExporter) {
this._internalExporter = initial;
}
// Fire-and-forget swap (returns old exporter immediately)
async swapExporter(newExporter: PushMetricExporter): Promise<PushMetricExporter> {
const saved = this._internalExporter;
await this._lock.runExclusive(() => {
this._internalExporter = newExporter;
this._shutdown = false;
});
return saved;
}
export(metrics: ResourceMetrics, resultCallback: (r: ExportResult) => void): void {
if (this._shutdown) {
resultCallback({ code: ExportResultCode.FAILED, error: new Error('exporter is shutdown') });
} else {
void this._lock.runExclusive(() => {
try {
this._internalExporter.export(metrics, resultCallback);
} catch (err) {
resultCallback({ code: ExportResultCode.FAILED, error: err as Error });
}
});
}
}
async forceFlush(): Promise<void> {
if (!this._shutdown) {
return await this._lock.runExclusive(async () => {
await this._internalExporter.forceFlush();
});
} else {
return Promise.resolve()
}
}
async shutdown(): Promise<void> {
if (!this._shutdown) {
return await this._lock.runExclusive(async () => {
await this._internalExporter.shutdown();
this._shutdown = true;
});
} else {
return Promise.resolve()
}
}
isShutdown(): boolean {
return this._shutdown
}
}
export class SpanExporterShim implements SpanExporter {
private _internalExporter: SpanExporter;
private _shutdown = false;
private readonly _lock = new Lock();
constructor(initial: SpanExporter) {
this._internalExporter = initial;
}
// Fire-and-forget swap (returns old exporter immediately)
async swapExporter(newExporter: SpanExporter): Promise<SpanExporter> {
const saved = this._internalExporter;
await this._lock.runExclusive(() => {
this._internalExporter = newExporter;
this._shutdown = false;
});
return saved;
}
export(spans: ReadableSpan[], resultCallback: (result: ExportResult) => void): void {
if (this._shutdown) {
resultCallback({ code: ExportResultCode.FAILED, error: new Error('exporter is shutdown') });
} else {
void this._lock.runExclusive(() => {
try {
this._internalExporter.export(spans, resultCallback);
} catch (err) {
resultCallback({ code: ExportResultCode.FAILED, error: err as Error });
}
});
}
}
async shutdown(): Promise<void> {
if (!this._shutdown) {
return await this._lock.runExclusive(async () => {
await this._internalExporter.shutdown();
this._shutdown = true;
});
} else {
return Promise.resolve()
}
}
async forceFlush?(): Promise<void> {
if (!this._shutdown) {
return await this._lock.runExclusive(async () => {
await this._internalExporter.forceFlush?.();
});
} else {
return Promise.resolve()
}
}
isShutdown(): boolean {
return this._shutdown
}
}
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