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/*---------------------------------------------------------------------------------------------
otlpLogEmitter.ts
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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import { Emitter, Event } from '../../../../base/common/event.js';
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import { Disposable } from '../../../../base/common/lifecycle.js';
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import { AbstractMessageLogger, format, LogLevel } from '../../../log/common/log.js';
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/**
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* Channel URI template advertised by an agent host that has an
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* {@link OtlpLogEmitter} attached. Clients expand `{level}` to one of the
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* short OTLP severity names (`trace`/`debug`/`info`/`warn`/`error`/`fatal`)
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* and subscribe to the resulting concrete URI.
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*
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* Kept as a constant so producer (host) and consumer (workbench) cannot
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* drift out of sync.
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*/
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export const OTLP_LOGS_CHANNEL_TEMPLATE = 'ahp-otlp://logs/{level}';
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/**
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* Scheme used by every OTLP channel URI. Lets routers tell them apart from
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* `ahp-*` state channels by URI alone.
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*/
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export const OTLP_CHANNEL_SCHEME = 'ahp-otlp';
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/**
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* Short OTLP severity names defined by the protocol's `{level}` template
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* variable. Listed in ascending order so a numeric index can act as a
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* coarse "minimum severity" bucket.
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*/
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export const OTLP_LOG_LEVELS = ['trace', 'debug', 'info', 'warn', 'error', 'fatal'] as const;
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export type OtlpLogLevelName = typeof OTLP_LOG_LEVELS[number];
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/**
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* Lowest [OTLP `SeverityNumber`](https://opentelemetry.io/docs/specs/otel/logs/data-model/#field-severitynumber)
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* within each named severity band. A record is delivered when its
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* `severityNumber >= levelToSeverityNumber(subscribed level)`.
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*/
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export function levelToSeverityNumber(level: OtlpLogLevelName): number {
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switch (level) {
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case 'trace': return 1;