110 lines
4.1 KiB
JavaScript
110 lines
4.1 KiB
JavaScript
/*
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* Copyright The OpenTelemetry Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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var __read = (this && this.__read) || function (o, n) {
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var m = typeof Symbol === "function" && o[Symbol.iterator];
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if (!m) return o;
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var i = m.call(o), r, ar = [], e;
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try {
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while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
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}
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catch (error) { e = { error: error }; }
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finally {
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try {
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if (r && !r.done && (m = i["return"])) m.call(i);
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}
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finally { if (e) throw e.error; }
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}
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return ar;
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};
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var __spreadArray = (this && this.__spreadArray) || function (to, from, pack) {
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if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {
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if (ar || !(i in from)) {
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if (!ar) ar = Array.prototype.slice.call(from, 0, i);
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ar[i] = from[i];
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}
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}
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return to.concat(ar || Array.prototype.slice.call(from));
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};
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import { NoopContextManager } from '../context/NoopContextManager';
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import { getGlobal, registerGlobal, unregisterGlobal, } from '../internal/global-utils';
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import { DiagAPI } from './diag';
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var API_NAME = 'context';
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var NOOP_CONTEXT_MANAGER = new NoopContextManager();
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/**
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* Singleton object which represents the entry point to the OpenTelemetry Context API
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*/
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var ContextAPI = /** @class */ (function () {
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/** Empty private constructor prevents end users from constructing a new instance of the API */
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function ContextAPI() {
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}
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/** Get the singleton instance of the Context API */
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ContextAPI.getInstance = function () {
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if (!this._instance) {
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this._instance = new ContextAPI();
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}
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return this._instance;
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};
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/**
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* Set the current context manager.
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*
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* @returns true if the context manager was successfully registered, else false
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*/
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ContextAPI.prototype.setGlobalContextManager = function (contextManager) {
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return registerGlobal(API_NAME, contextManager, DiagAPI.instance());
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};
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/**
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* Get the currently active context
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*/
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ContextAPI.prototype.active = function () {
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return this._getContextManager().active();
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};
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/**
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* Execute a function with an active context
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*
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* @param context context to be active during function execution
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* @param fn function to execute in a context
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* @param thisArg optional receiver to be used for calling fn
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* @param args optional arguments forwarded to fn
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*/
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ContextAPI.prototype.with = function (context, fn, thisArg) {
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var _a;
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var args = [];
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for (var _i = 3; _i < arguments.length; _i++) {
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args[_i - 3] = arguments[_i];
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}
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return (_a = this._getContextManager()).with.apply(_a, __spreadArray([context, fn, thisArg], __read(args), false));
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};
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/**
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* Bind a context to a target function or event emitter
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*
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* @param context context to bind to the event emitter or function. Defaults to the currently active context
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* @param target function or event emitter to bind
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*/
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ContextAPI.prototype.bind = function (context, target) {
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return this._getContextManager().bind(context, target);
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};
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ContextAPI.prototype._getContextManager = function () {
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return getGlobal(API_NAME) || NOOP_CONTEXT_MANAGER;
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};
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/** Disable and remove the global context manager */
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ContextAPI.prototype.disable = function () {
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this._getContextManager().disable();
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unregisterGlobal(API_NAME, DiagAPI.instance());
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};
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return ContextAPI;
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}());
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export { ContextAPI };
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//# sourceMappingURL=context.js.map
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