skywalking-apache/lib/trace/context/ContextManager.js

The NodeJS agent for Apache SkyWalking

"use strict";
/*!
 *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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
 *
 *     http://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 });
var tslib_1 = require("tslib");
var SpanContext_1 = tslib_1.__importDefault(require("../../trace/context/SpanContext"));
var async_hooks_1 = require("async_hooks");
var ContextManager = /** @class */ (function () {
    function ContextManager() {
        var _this = this;
        this.contextKeyedByAsyncId = {};
        async_hooks_1.createHook({
            destroy: function (asyncId) {
                delete _this.contextKeyedByAsyncId[asyncId];
            },
        }).enable();
    }
    Object.defineProperty(ContextManager.prototype, "current", {
        get: function () {
            var thisAsyncId = async_hooks_1.executionAsyncId();
            this.contextKeyedByAsyncId[thisAsyncId] = this.contextKeyedByAsyncId[thisAsyncId] || new SpanContext_1.default(thisAsyncId);
            return this.contextKeyedByAsyncId[thisAsyncId];
        },
        enumerable: false,
        configurable: true
    });
    return ContextManager;
}());
exports.default = new ContextManager();
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