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

Public API for OpenTelemetry

"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.TraceAPI = void 0;
const global_utils_1 = require("../internal/global-utils");
const ProxyTracerProvider_1 = require("../trace/ProxyTracerProvider");
const spancontext_utils_1 = require("../trace/spancontext-utils");
const context_utils_1 = require("../trace/context-utils");
const diag_1 = require("./diag");
const API_NAME = 'trace';
/**
 * Singleton object which represents the entry point to the OpenTelemetry Tracing API
 */
class TraceAPI {
    /** Empty private constructor prevents end users from constructing a new instance of the API */
    constructor() {
        this._proxyTracerProvider = new ProxyTracerProvider_1.ProxyTracerProvider();
        this.wrapSpanContext = spancontext_utils_1.wrapSpanContext;
        this.isSpanContextValid = spancontext_utils_1.isSpanContextValid;
        this.deleteSpan = context_utils_1.deleteSpan;
        this.getSpan = context_utils_1.getSpan;
        this.getActiveSpan = context_utils_1.getActiveSpan;
        this.getSpanContext = context_utils_1.getSpanContext;
        this.setSpan = context_utils_1.setSpan;
        this.setSpanContext = context_utils_1.setSpanContext;
    }
    /** Get the singleton instance of the Trace API */
    static getInstance() {
        if (!this._instance) {
            this._instance = new TraceAPI();
        }
        return this._instance;
    }
    /**
     * Set the current global tracer.
     *
     * @returns true if the tracer provider was successfully registered, else false
     */
    setGlobalTracerProvider(provider) {
        const success = (0, global_utils_1.registerGlobal)(API_NAME, this._proxyTracerProvider, diag_1.DiagAPI.instance());
        if (success) {
            this._proxyTracerProvider.setDelegate(provider);
        }
        return success;
    }
    /**
     * Returns the global tracer provider.
     */
    getTracerProvider() {
        return (0, global_utils_1.getGlobal)(API_NAME) || this._proxyTracerProvider;
    }
    /**
     * Returns a tracer from the global tracer provider.
     */
    getTracer(name, version) {
        return this.getTracerProvider().getTracer(name, version);
    }
    /** Remove the global tracer provider */
    disable() {
        (0, global_utils_1.unregisterGlobal)(API_NAME, diag_1.DiagAPI.instance());
        this._proxyTracerProvider = new ProxyTracerProvider_1.ProxyTracerProvider();
    }
}
exports.TraceAPI = TraceAPI;
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