@jufab/opentelemetry-angular-interceptor
Version:
@jufab/opentelemetry-angular-interceptor is an Angular Library to deploy [OpenTelemetry](https://opentelemetry.io/) in your Angular application
151 lines • 17.6 kB
JavaScript
import { Inject, Injectable } from '@angular/core';
import { ZoneContextManager } from '@opentelemetry/context-zone-peer-dep';
import { ATTR_SERVICE_NAME } from '@opentelemetry/semantic-conventions';
import { registerInstrumentations } from '@opentelemetry/instrumentation';
import { AlwaysOffSampler, AlwaysOnSampler, ParentBasedSampler, TraceIdRatioBasedSampler, WebTracerProvider } from '@opentelemetry/sdk-trace-web';
import { ConsoleSpanExporter, SimpleSpanProcessor, BatchSpanProcessor, NoopSpanProcessor } from '@opentelemetry/sdk-trace-base';
// eslint-disable-next-line max-len
import { OTEL_CONFIG, OTEL_INSTRUMENTATION_PLUGINS } from '../../configuration/opentelemetry-config';
import { OTEL_EXPORTER } from '../exporter/exporter.interface';
import { OTEL_PROPAGATOR } from '../propagator/propagator.interface';
import { resourceFromAttributes } from '@opentelemetry/resources';
import * as i0 from "@angular/core";
/**
* InstrumentationService.
* Service for component to add instrumentation.
*/
export class InstrumentationService {
/**
* Constructor
*
* @param config
* @param exporterService
* @param propagatorService
*/
constructor(config, exporterService, propagatorService, instrumentation) {
this.config = config;
this.exporterService = exporterService;
this.propagatorService = propagatorService;
this.instrumentation = instrumentation;
/**
* contextManager
*/
this.contextManager = new ZoneContextManager();
this.tracerProvider = new WebTracerProvider({
sampler: this.defineProbabilitySampler(this.convertStringToNumber(this.config.commonConfig.probabilitySampler)),
resource: this.loadResourceAttributes(this.config.commonConfig),
spanProcessors: this.insertOrNotSpanExporter(this.config.commonConfig.production, this.exporterService, this.config.commonConfig.console),
});
}
/**
* Init instrumentation on init
*/
initInstrumentation() {
this.tracerProvider.register({
contextManager: this.contextManager,
propagator: this.propagatorService.getPropagator(),
});
registerInstrumentations({
instrumentations: this.instrumentation,
tracerProvider: this.tracerProvider,
});
}
/**
* Generate Resource Attributes
* @param commonConfig common configuration
* @returns Resource
*/
loadResourceAttributes(commonConfig) {
return resourceFromAttributes({
[ATTR_SERVICE_NAME]: commonConfig?.serviceName,
...commonConfig?.resourceAttributes,
});
}
/**
* Verify to insert or not a Span Exporter
* @param console config to insert console span
* @param production production mode
* @param exporter exporter
* @returns Array of SpanProcessor
*/
insertOrNotSpanExporter(production, exporter, console) {
if (this.exporterService.getExporter() !== undefined) {
return Array.of(this.insertSpanProcessorProductionMode(production, exporter), this.insertConsoleSpanExporter(console));
}
else {
return Array.of(new NoopSpanProcessor());
}
}
/**
* Insert in tracer the console span if config is true
*
* @param console config to insert console span
* @returns SpanProcessor
*/
insertConsoleSpanExporter(console) {
if (console) {
return new SimpleSpanProcessor(new ConsoleSpanExporter());
}
}
/**
* Insert BatchSpanProcessor in production mode
* SimpleSpanProcessor otherwise
*
* @param boolean production
* @param IExporter exporter
* @returns SpanProcessor
*/
insertSpanProcessorProductionMode(production, exporter) {
return production
? new BatchSpanProcessor(exporter.getExporter())
: new SimpleSpanProcessor(exporter.getExporter());
}
/**
* convert String to Number (or undefined)
*
* @param value
* @returns number or undefined
*/
convertStringToNumber(value) {
return value !== undefined ? Number(value) : undefined;
}
/**
* define the Probability Sampler
* By Default, it's always (or 1)
*
* @param sampleConfig the sample configuration
* @returns Sampler
*/
defineProbabilitySampler(sampleConfig) {
if (sampleConfig >= 1) {
return new ParentBasedSampler({ root: new AlwaysOnSampler() });
}
else if (sampleConfig <= 0 || sampleConfig === undefined) {
return new ParentBasedSampler({ root: new AlwaysOffSampler() });
}
else {
return new ParentBasedSampler({ root: new TraceIdRatioBasedSampler(sampleConfig) });
}
}
}
InstrumentationService.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "14.3.0", ngImport: i0, type: InstrumentationService, deps: [{ token: OTEL_CONFIG }, { token: OTEL_EXPORTER }, { token: OTEL_PROPAGATOR }, { token: OTEL_INSTRUMENTATION_PLUGINS }], target: i0.ɵɵFactoryTarget.Injectable });
InstrumentationService.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "14.3.0", ngImport: i0, type: InstrumentationService, providedIn: 'root' });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "14.3.0", ngImport: i0, type: InstrumentationService, decorators: [{
type: Injectable,
args: [{
providedIn: 'root'
}]
}], ctorParameters: function () { return [{ type: undefined, decorators: [{
type: Inject,
args: [OTEL_CONFIG]
}] }, { type: undefined, decorators: [{
type: Inject,
args: [OTEL_EXPORTER]
}] }, { type: undefined, decorators: [{
type: Inject,
args: [OTEL_PROPAGATOR]
}] }, { type: undefined, decorators: [{
type: Inject,
args: [OTEL_INSTRUMENTATION_PLUGINS]
}] }]; } });
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{ Inject, Injectable } from '@angular/core';\nimport { ZoneContextManager } from '@opentelemetry/context-zone-peer-dep';\nimport { ATTR_SERVICE_NAME } from '@opentelemetry/semantic-conventions';\nimport { Instrumentation, registerInstrumentations } from '@opentelemetry/instrumentation';\nimport {\n  AlwaysOffSampler,\n  AlwaysOnSampler,\n  ParentBasedSampler,\n  Sampler,\n  TraceIdRatioBasedSampler,\n  WebTracerProvider\n} from '@opentelemetry/sdk-trace-web';\nimport {\n  ConsoleSpanExporter,\n  SimpleSpanProcessor,\n  BatchSpanProcessor,\n  NoopSpanProcessor,\n  SpanProcessor\n} from '@opentelemetry/sdk-trace-base';\n// eslint-disable-next-line max-len\nimport { OTEL_CONFIG, OpenTelemetryConfig, OTEL_INSTRUMENTATION_PLUGINS, CommonCollectorConfig } from '../../configuration/opentelemetry-config';\nimport { OTEL_EXPORTER, IExporter } from '../exporter/exporter.interface';\nimport { OTEL_PROPAGATOR, IPropagator } from '../propagator/propagator.interface';\nimport { Resource, resourceFromAttributes } from '@opentelemetry/resources';\n\n/**\n * InstrumentationService.\n * Service for component to add instrumentation.\n */\n@Injectable({\n  providedIn: 'root'\n})\nexport class InstrumentationService {\n\n  /**\n   * tracerProvider\n   */\n  private tracerProvider: WebTracerProvider;\n\n  /**\n   * contextManager\n   */\n  private contextManager = new ZoneContextManager();\n\n  /**\n   * Constructor\n   *\n   * @param config\n   * @param exporterService\n   * @param propagatorService\n   */\n  constructor(@Inject(OTEL_CONFIG) private config: OpenTelemetryConfig,\n    @Inject(OTEL_EXPORTER)\n    private exporterService: IExporter,\n    @Inject(OTEL_PROPAGATOR)\n    private propagatorService: IPropagator,\n    @Inject(OTEL_INSTRUMENTATION_PLUGINS)\n    private instrumentation: Instrumentation[]) {\n    this.tracerProvider = new WebTracerProvider({\n      sampler: this.defineProbabilitySampler(this.convertStringToNumber(this.config.commonConfig.probabilitySampler)),\n      resource: this.loadResourceAttributes(this.config.commonConfig),\n      spanProcessors: this.insertOrNotSpanExporter(this.config.commonConfig.production,\n        this.exporterService, this.config.commonConfig.console),\n    });\n  }\n\n  /**\n   * Init instrumentation on init\n   */\n  public initInstrumentation() {\n    this.tracerProvider.register({\n      contextManager: this.contextManager,\n      propagator: this.propagatorService.getPropagator(),\n    });\n\n    registerInstrumentations({\n      instrumentations: this.instrumentation,\n      tracerProvider: this.tracerProvider,\n    });\n  }\n\n  /**\n   * Generate Resource Attributes\n   * @param commonConfig common configuration\n   * @returns Resource\n   */\n  private loadResourceAttributes(\n    commonConfig: CommonCollectorConfig\n  ): Resource {\n    return resourceFromAttributes({\n      [ATTR_SERVICE_NAME]: commonConfig?.serviceName,\n      ...commonConfig?.resourceAttributes,\n    });\n  }\n\n  /**\n   * Verify to insert or not a Span Exporter\n   * @param console config to insert console span\n   * @param production production mode\n   * @param exporter exporter\n   * @returns Array of SpanProcessor\n   */\n  private insertOrNotSpanExporter(production: boolean, exporter: IExporter, console: boolean): Array<SpanProcessor> {\n    if (this.exporterService.getExporter() !== undefined) {\n      return Array.of(this.insertSpanProcessorProductionMode(production, exporter),\n        this.insertConsoleSpanExporter(console));\n    } else {\n      return Array.of(new NoopSpanProcessor());\n    }\n  }\n\n  /**\n   * Insert in tracer the console span if config is true\n   *\n   * @param console config to insert console span\n   * @returns SpanProcessor\n   */\n  private insertConsoleSpanExporter(console: boolean): SpanProcessor {\n    if (console) {\n      return new SimpleSpanProcessor(new ConsoleSpanExporter());\n    }\n  }\n\n  /**\n   * Insert BatchSpanProcessor in production mode\n   * SimpleSpanProcessor otherwise\n   *\n   * @param boolean production\n   * @param IExporter exporter\n   * @returns SpanProcessor\n   */\n  private insertSpanProcessorProductionMode(\n    production: boolean,\n    exporter: IExporter\n  ): SpanProcessor {\n    return production\n      ? new BatchSpanProcessor(exporter.getExporter())\n      : new SimpleSpanProcessor(exporter.getExporter());\n  }\n\n  /**\n   * convert String to Number (or undefined)\n   *\n   * @param value\n   * @returns number or undefined\n   */\n  private convertStringToNumber(value: string): number {\n    return value !== undefined ? Number(value) : undefined;\n  }\n\n  /**\n   * define the Probability Sampler\n   * By Default, it's always (or 1)\n   *\n   * @param sampleConfig the sample configuration\n   * @returns Sampler\n   */\n  private defineProbabilitySampler(sampleConfig: number): Sampler {\n    if (sampleConfig >= 1) {\n      return new ParentBasedSampler({ root: new AlwaysOnSampler() });\n    }\n    else if (sampleConfig <= 0 || sampleConfig === undefined) {\n      return new ParentBasedSampler({ root: new AlwaysOffSampler() });\n    } else {\n      return new ParentBasedSampler({ root: new TraceIdRatioBasedSampler(sampleConfig) });\n    }\n  }\n}\n"]}