Rename formatter to propagator

benchmark/README.md

@@ -53,7 +53,7 @@ Beginning BasicTracerProvider with BatchSpanProcessor Benchmark...
   #startSpan with 100 attributes x  3,459 ops/sec ±4.56% (20 runs sampled)
 
 
-Beginning B3Format Benchmark...
+Beginning B3Propagator Benchmark...
   2 tests completed.
 
   #Inject  x 5,086,366 ops/sec ±3.18% (100 runs sampled)

benchmark/propagator.js

@@ -5,8 +5,8 @@ const opentelemetry = require('../packages/opentelemetry-core');
 
 const setups = [
   {
-    name: 'B3Format',
-    propagator: new opentelemetry.B3Format(),
+    name: 'B3Propagator',
+    propagator: new opentelemetry.B3Propagator(),
     injectCarrier: {},
     extractCarrier: {
       'x-b3-traceid': 'd4cda95b652f4a1592b449d5929fda1b',

examples/tracer-web/examples/user-interaction/index.js

@@ -4,10 +4,10 @@ import { XMLHttpRequestPlugin } from '@opentelemetry/plugin-xml-http-request';
 import { UserInteractionPlugin } from '@opentelemetry/plugin-user-interaction';
 import { ZoneScopeManager } from '@opentelemetry/scope-zone';
 import { CollectorExporter } from '@opentelemetry/exporter-collector';
-import { B3Format } from '@opentelemetry/core';
+import { B3Propagator } from '@opentelemetry/core';
 
 const providerWithZone = new WebTracerProvider({
-  httpTextFormat: new B3Format(),
+  HttpTextPropagator: new B3Propagator(),
   scopeManager: new ZoneScopeManager(),
   plugins: [
     new UserInteractionPlugin(),

examples/tracer-web/examples/xml-http-request/index.js

@@ -3,10 +3,10 @@ import { WebTracerProvider } from '@opentelemetry/web';
 import { XMLHttpRequestPlugin } from '@opentelemetry/plugin-xml-http-request';
 import { ZoneScopeManager } from '@opentelemetry/scope-zone';
 import { CollectorExporter } from '@opentelemetry/exporter-collector';
-import { B3Format } from '@opentelemetry/core';
+import { B3Propagator } from '@opentelemetry/core';
 
 const providerWithZone = new WebTracerProvider({
-  httpTextFormat: new B3Format(),
+  HttpTextPropagator: new B3Propagator(),
   scopeManager: new ZoneScopeManager(),
   plugins: [
     new XMLHttpRequestPlugin({

packages/opentelemetry-api/src/api/propagation.ts

@@ -16,8 +16,8 @@
 
 import { Context } from '@opentelemetry/scope-base';
 import { defaultGetter, GetterFunction } from '../context/propagation/getter';
-import { HttpTextFormat } from '../context/propagation/HttpTextFormat';
-import { NOOP_HTTP_TEXT_FORMAT } from '../context/propagation/NoopHttpTextFormat';
+import { HttpTextPropagator } from '../context/propagation/HttpTextPropagator';
+import { NOOP_HTTP_TEXT_PROPAGATOR } from '../context/propagation/NoopHttpTextPropagator';
 import { defaultSetter, SetterFunction } from '../context/propagation/setter';
 import { ContextAPI } from './context';
 
@@ -28,7 +28,7 @@ const contextApi = ContextAPI.getInstance();
  */
 export class PropagationAPI {
   private static _instance?: PropagationAPI;
-  private _propagator: HttpTextFormat = NOOP_HTTP_TEXT_FORMAT;
+  private _propagator: HttpTextPropagator = NOOP_HTTP_TEXT_PROPAGATOR;
 
   /** Empty private constructor prevents end users from constructing a new instance of the API */
   private constructor() {}
@@ -45,7 +45,9 @@ export class PropagationAPI {
   /**
    * Set the current propagator. Returns the initialized propagator
    */
-  public setGlobalPropagator(propagator: HttpTextFormat): HttpTextFormat {
+  public setGlobalPropagator(
+    propagator: HttpTextPropagator
+  ): HttpTextPropagator {
     this._propagator = propagator;
     return propagator;
   }

packages/opentelemetry-api/src/context/propagation/HttpTextFormat.ts → packages/opentelemetry-api/src/context/propagation/HttpTextPropagator.ts

@@ -27,11 +27,11 @@ import { GetterFunction } from './getter';
  * The carrier of propagated data on both the client (injector) and server
  * (extractor) side is usually an object such as http headers.
  */
-export interface HttpTextFormat {
+export interface HttpTextPropagator {
   /**
    * Injects values from a given {@link Context} into a carrier.
    *
-   * OpenTelemetry defines a common set of format values (HTTPTextFormat), and
+   * OpenTelemetry defines a common set of format values (HttpTextPropagator), and
    * each has an expected `carrier` type.
    *
    * @param context the Context from which to extract values to transmit over

packages/opentelemetry-api/src/context/propagation/NoopHttpTextFormat.ts → packages/opentelemetry-api/src/context/propagation/NoopHttpTextPropagator.ts

@@ -15,12 +15,12 @@
  */
 
 import { Context } from '@opentelemetry/scope-base';
-import { HttpTextFormat } from './HttpTextFormat';
+import { HttpTextPropagator } from './HttpTextPropagator';
 
 /**
- * No-op implementations of {@link HttpTextFormat}.
+ * No-op implementations of {@link HttpTextPropagator}.
  */
-export class NoopHttpTextFormat implements HttpTextFormat {
+export class NoopHttpTextPropagator implements HttpTextPropagator {
   /** Noop inject function does nothing */
   inject(context: Context, carrier: unknown, setter: Function): void {}
   /** Noop extract function does nothing and returns the input context */
@@ -29,4 +29,4 @@ export class NoopHttpTextFormat implements HttpTextFormat {
   }
 }
 
-export const NOOP_HTTP_TEXT_FORMAT = new NoopHttpTextFormat();
+export const NOOP_HTTP_TEXT_PROPAGATOR = new NoopHttpTextPropagator();

packages/opentelemetry-api/src/index.ts

@@ -17,8 +17,8 @@
 export * from './common/Logger';
 export * from './common/Time';
 export * from './context/propagation/getter';
-export * from './context/propagation/HttpTextFormat';
-export * from './context/propagation/NoopHttpTextFormat';
+export * from './context/propagation/HttpTextPropagator';
+export * from './context/propagation/NoopHttpTextPropagator';
 export * from './context/propagation/setter';
 export * from './correlation_context/CorrelationContext';
 export * from './correlation_context/EntryValue';

packages/opentelemetry-api/src/trace/NoopTracer.ts

@@ -14,8 +14,7 @@
  * limitations under the License.
  */
 
-import { HttpTextFormat, Span, SpanOptions, Tracer } from '..';
-import { NOOP_HTTP_TEXT_FORMAT } from '../context/propagation/NoopHttpTextFormat';
+import { Span, SpanOptions, Tracer } from '..';
 import { NOOP_SPAN } from './NoopSpan';
 
 /**
@@ -41,11 +40,6 @@ export class NoopTracer implements Tracer {
   bind<T>(target: T, span?: Span): T {
     return target;
   }
-
-  // By default does nothing
-  getHttpTextFormat(): HttpTextFormat {
-    return NOOP_HTTP_TEXT_FORMAT;
-  }
 }
 
 export const NOOP_TRACER = new NoopTracer();

packages/opentelemetry-api/test/api/api.test.ts

@@ -25,12 +25,7 @@ import api, {
 } from '../../src';
 
 describe('API', () => {
-  const functions = [
-    'getCurrentSpan',
-    'startSpan',
-    'withSpan',
-    'getHttpTextFormat',
-  ];
+  const functions = ['getCurrentSpan', 'startSpan', 'withSpan'];
 
   it('should expose a tracer provider via getTracerProvider', () => {
     const tracer = api.trace.getTracerProvider();

packages/opentelemetry-api/test/noop-implementations/noop-tracer.test.ts

@@ -14,11 +14,8 @@
  * limitations under the License.
  */
 
-import { Context } from '@opentelemetry/scope-base';
 import * as assert from 'assert';
 import { NoopTracer, NOOP_SPAN, SpanKind } from '../../src';
-import { defaultGetter } from '../../src/context/propagation/getter';
-import { defaultSetter } from '../../src/context/propagation/setter';
 
 describe('NoopTracer', () => {
   it('should not crash', () => {
@@ -37,14 +34,6 @@ describe('NoopTracer', () => {
     );
 
     assert.deepStrictEqual(tracer.getCurrentSpan(), NOOP_SPAN);
-    const httpTextFormat = tracer.getHttpTextFormat();
-    assert.ok(httpTextFormat);
-
-    httpTextFormat.inject(Context.ROOT_CONTEXT, {}, defaultSetter);
-    assert.deepStrictEqual(
-      httpTextFormat.extract(Context.ROOT_CONTEXT, {}, defaultGetter),
-      Context.ROOT_CONTEXT
-    );
   });
 
   it('should not crash when .withSpan()', done => {

packages/opentelemetry-core/src/context/propagation/B3Format.ts → packages/opentelemetry-core/src/context/propagation/B3Propagator.ts

@@ -17,7 +17,7 @@
 import {
   Context,
   GetterFunction,
-  HttpTextFormat,
+  HttpTextPropagator,
   SetterFunction,
   TraceFlags,
 } from '@opentelemetry/api';
@@ -42,7 +42,7 @@ function isValidSpanId(spanId: string): boolean {
  * Propagator for the B3 HTTP header format.
  * Based on: https://github.com/openzipkin/b3-propagation
  */
-export class B3Format implements HttpTextFormat {
+export class B3Propagator implements HttpTextPropagator {
   inject(context: Context, carrier: unknown, setter: SetterFunction) {
     const spanContext = getParentSpanContext(context);
     if (!spanContext) return;

packages/opentelemetry-core/src/context/propagation/HttpTraceContext.ts

@@ -17,7 +17,7 @@
 import {
   Context,
   GetterFunction,
-  HttpTextFormat,
+  HttpTextPropagator,
   SetterFunction,
   SpanContext,
   TraceFlags,
@@ -63,7 +63,7 @@ export function parseTraceParent(traceParent: string): SpanContext | null {
  * Based on the Trace Context specification:
  * https://www.w3.org/TR/trace-context/
  */
-export class HttpTraceContext implements HttpTextFormat {
+export class HttpTraceContext implements HttpTextPropagator {
   inject(context: Context, carrier: unknown, setter: SetterFunction) {
     const spanContext = getParentSpanContext(context);
     if (!spanContext) return;

packages/opentelemetry-core/src/context/propagation/composite.ts

@@ -17,16 +17,16 @@
 import {
   Context,
   GetterFunction,
-  HttpTextFormat,
+  HttpTextPropagator,
   Logger,
   SetterFunction,
 } from '@opentelemetry/api';
 import { NoopLogger } from '../../common/NoopLogger';
 import { CompositePropagatorConfig } from './types';
 
 /** Combines multiple propagators into a single propagator. */
-export class CompositePropagator implements HttpTextFormat {
-  private readonly _propagators: HttpTextFormat[];
+export class CompositePropagator implements HttpTextPropagator {
+  private readonly _propagators: HttpTextPropagator[];
   private readonly _logger: Logger;
 
   /**

packages/opentelemetry-core/src/context/propagation/types.ts

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-import { HttpTextFormat, Logger } from '@opentelemetry/api';
+import { HttpTextPropagator, Logger } from '@opentelemetry/api';
 
 /** Configuration object for composite propagator */
 export interface CompositePropagatorConfig {
@@ -23,7 +23,7 @@ export interface CompositePropagatorConfig {
    * list order. If a propagator later in the list writes the same context
    * key as a propagator earlier in the list, the later on will "win".
    */
-  propagators?: HttpTextFormat[];
+  propagators?: HttpTextPropagator[];
 
   /** Instance of logger */
   logger?: Logger;

packages/opentelemetry-core/src/index.ts

@@ -20,7 +20,7 @@ export * from './common/time';
 export * from './common/types';
 export * from './version';
 export * from './context/context';
-export * from './context/propagation/B3Format';
+export * from './context/propagation/B3Propagator';
 export * from './context/propagation/composite';
 export * from './context/propagation/HttpTraceContext';
 export * from './context/propagation/types';