@opentelemetry/api/build/src/api/diag.js

"use strict";
/*
 * Copyright The OpenTelemetry Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
Object.defineProperty(exports, "__esModule", { value: true });
exports.DiagAPI = void 0;
const ComponentLogger_1 = require("../diag/ComponentLogger");
const logLevelLogger_1 = require("../diag/internal/logLevelLogger");
const types_1 = require("../diag/types");
const global_utils_1 = require("../internal/global-utils");
const API_NAME = 'diag';
/**
 * Singleton object which represents the entry point to the OpenTelemetry internal
 * diagnostic API
 */
class DiagAPI {
    /**
     * Private internal constructor
     * @private
     */
    constructor() {
        function _logProxy(funcName) {
            return function (...args) {
                const logger = (0, global_utils_1.getGlobal)('diag');
                // shortcut if logger not set
                if (!logger)
                    return;
                return logger[funcName](...args);
            };
        }
        // Using self local variable for minification purposes as 'this' cannot be minified
        const self = this;
        // DiagAPI specific functions
        const setLogger = (logger, optionsOrLogLevel = { logLevel: types_1.DiagLogLevel.INFO }) => {
            var _a, _b, _c;
            if (logger === self) {
                // There isn't much we can do here.
                // Logging to the console might break the user application.
                // Try to log to self. If a logger was previously registered it will receive the log.
                const err = new Error('Cannot use diag as the logger for itself. Please use a DiagLogger implementation like ConsoleDiagLogger or a custom implementation');
                self.error((_a = err.stack) !== null && _a !== void 0 ? _a : err.message);
                return false;
            }
            if (typeof optionsOrLogLevel === 'number') {
                optionsOrLogLevel = {
                    logLevel: optionsOrLogLevel,
                };
            }
            const oldLogger = (0, global_utils_1.getGlobal)('diag');
            const newLogger = (0, logLevelLogger_1.createLogLevelDiagLogger)((_b = optionsOrLogLevel.logLevel) !== null && _b !== void 0 ? _b : types_1.DiagLogLevel.INFO, logger);
            // There already is an logger registered. We'll let it know before overwriting it.
            if (oldLogger && !optionsOrLogLevel.suppressOverrideMessage) {
                const stack = (_c = new Error().stack) !== null && _c !== void 0 ? _c : '<failed to generate stacktrace>';
                oldLogger.warn(`Current logger will be overwritten from ${stack}`);
                newLogger.warn(`Current logger will overwrite one already registered from ${stack}`);
            }
            return (0, global_utils_1.registerGlobal)('diag', newLogger, self, true);
        };
        self.setLogger = setLogger;
        self.disable = () => {
            (0, global_utils_1.unregisterGlobal)(API_NAME, self);
        };
        self.createComponentLogger = (options) => {
            return new ComponentLogger_1.DiagComponentLogger(options);
        };
        self.verbose = _logProxy('verbose');
        self.debug = _logProxy('debug');
        self.info = _logProxy('info');
        self.warn = _logProxy('warn');
        self.error = _logProxy('error');
    }
    /** Get the singleton instance of the DiagAPI API */
    static instance() {
        if (!this._instance) {
            this._instance = new DiagAPI();
        }
        return this._instance;
    }
}
exports.DiagAPI = DiagAPI;
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