export resource to exporters (#843)

* export resource to exporters

* update Zipkin and Stackdriver exporter to use Resource

* chore: remove redundant dependency

* update Collector exporter to use Resource

* rebase with #846

* minor

* fix collector resource

* fix build

packages/opentelemetry-exporter-collector/package.json

@@ -50,7 +50,6 @@
   },
   "devDependencies": {
     "@babel/core": "^7.6.0",
-    "@opentelemetry/resources": "^0.4.0",
     "@types/mocha": "^5.2.5",
     "@types/node": "^12.6.8",
     "@types/sinon": "^7.0.13",
@@ -83,6 +82,7 @@
     "@opentelemetry/api": "^0.4.0",
     "@opentelemetry/base": "^0.4.0",
     "@opentelemetry/core": "^0.4.0",
+    "@opentelemetry/resources": "^0.4.0",
     "@opentelemetry/tracing": "^0.4.0"
   }
 }

packages/opentelemetry-exporter-collector/src/CollectorExporter.ts

@@ -19,8 +19,9 @@ import { NoopLogger } from '@opentelemetry/core';
 import { ReadableSpan, SpanExporter } from '@opentelemetry/tracing';
 import { Attributes, Logger } from '@opentelemetry/api';
 import * as collectorTypes from './types';
-import { toCollectorSpan } from './transform';
+import { toCollectorSpan, toCollectorResource } from './transform';
 import { onInit, onShutdown, sendSpans } from './platform/index';
+import { Resource } from '@opentelemetry/resources';
 
 /**
  * Collector Exporter Config
@@ -100,10 +101,13 @@ export class CollectorExporter implements SpanExporter {
           toCollectorSpan(span)
         );
         this.logger.debug('spans to be sent', spansToBeSent);
+        const resource = toCollectorResource(
+          spansToBeSent.length > 0 ? spans[0].resource : Resource.empty()
+        );
 
         // Send spans to [opentelemetry collector]{@link https://github.com/open-telemetry/opentelemetry-collector}
         // it will use the appropriate transport layer automatically depends on platform
-        sendSpans(spansToBeSent, resolve, reject, this);
+        sendSpans(spansToBeSent, resolve, reject, this, resource);
       } catch (e) {
         reject(e);
       }

packages/opentelemetry-exporter-collector/src/platform/browser/sendSpans.ts

@@ -43,12 +43,14 @@ export function onShutdown(shutdownF: EventListener) {
  * @param onSuccess
  * @param onError
  * @param collectorExporter
+ * @param resource
  */
 export function sendSpans(
   spans: collectorTypes.Span[],
   onSuccess: () => void,
   onError: (status?: number) => void,
-  collectorExporter: CollectorExporter
+  collectorExporter: CollectorExporter,
+  resource: collectorTypes.Resource
 ) {
   const exportTraceServiceRequest: collectorTypes.ExportTraceServiceRequest = {
     node: {
@@ -66,7 +68,7 @@ export function sendSpans(
       },
       attributes: collectorExporter.attributes,
     },
-    // resource: '', not implemented
+    resource,
     spans,
   };
 

packages/opentelemetry-exporter-collector/src/platform/node/sendSpans.ts

@@ -47,32 +47,20 @@ export function onShutdown(shutdownF: Function) {}
  * @param onSuccess
  * @param onError
  * @param collectorExporter
+ * @param resource
  */
 export function sendSpans(
   spans: collectorTypes.Span[],
   onSuccess: () => void,
   onError: (status?: number) => void,
-  collectorExporter: CollectorExporter
+  collectorExporter: CollectorExporter,
+  resource: collectorTypes.Resource
 ) {
-  const exportTraceServiceRequest: collectorTypes.ExportTraceServiceRequest = {
-    node: {
-      identifier: {
-        hostName: collectorExporter.hostName,
-        startTimestamp: core.hrTimeToTimeStamp(core.hrTime()),
-      },
-      libraryInfo: {
-        language: collectorTypes.LibraryInfoLanguage.NODE_JS,
-        coreLibraryVersion: core.VERSION,
-        exporterVersion: VERSION,
-      },
-      serviceInfo: {
-        name: collectorExporter.serviceName,
-      },
-      attributes: collectorExporter.attributes,
-    },
-    // resource: '', not implemented
+  const exportTraceServiceRequest = toCollectorTraceServiceRequest(
     spans,
-  };
+    collectorExporter,
+    resource
+  );
   const body = JSON.stringify(exportTraceServiceRequest);
   const parsedUrl = url.parse(collectorExporter.url);
 
@@ -105,3 +93,29 @@ export function sendSpans(
   req.write(body);
   req.end();
 }
+
+export function toCollectorTraceServiceRequest(
+  spans: collectorTypes.Span[],
+  collectorExporter: CollectorExporter,
+  resource: collectorTypes.Resource
+): collectorTypes.ExportTraceServiceRequest {
+  return {
+    node: {
+      identifier: {
+        hostName: collectorExporter.hostName,
+        startTimestamp: core.hrTimeToTimeStamp(core.hrTime()),
+      },
+      libraryInfo: {
+        language: collectorTypes.LibraryInfoLanguage.NODE_JS,
+        coreLibraryVersion: core.VERSION,
+        exporterVersion: VERSION,
+      },
+      serviceInfo: {
+        name: collectorExporter.serviceName,
+      },
+      attributes: collectorExporter.attributes,
+    },
+    resource,
+    spans,
+  };
+}

packages/opentelemetry-exporter-collector/src/transform.ts

@@ -18,6 +18,7 @@ import { hexToBase64, hrTimeToTimeStamp } from '@opentelemetry/core';
 import { ReadableSpan } from '@opentelemetry/tracing';
 import { Attributes, Link, TimedEvent, TraceState } from '@opentelemetry/api';
 import * as collectorTypes from './types';
+import { Resource } from '@opentelemetry/resources';
 
 const OT_MAX_STRING_LENGTH = 128;
 
@@ -201,6 +202,21 @@ export function toCollectorSpan(span: ReadableSpan): collectorTypes.Span {
   };
 }
 
+/**
+ * converts span resource
+ * @param resource
+ */
+export function toCollectorResource(
+  resource: Resource
+): collectorTypes.Resource {
+  const labels: { [key: string]: string } = {};
+  Object.keys(resource.labels).forEach(
+    name => (labels[name] = String(resource.labels[name]))
+  );
+  // @TODO: add type support
+  return { labels };
+}
+
 /**
  * @param traceState
  */

packages/opentelemetry-exporter-collector/test/common/transform.test.ts

@@ -18,6 +18,7 @@ import { Attributes, TimedEvent } from '@opentelemetry/api';
 import * as assert from 'assert';
 import * as transform from '../../src/transform';
 import { ensureSpanIsCorrect, mockedReadableSpan } from '../helper';
+import { Resource } from '@opentelemetry/resources';
 
 describe('transform', () => {
   describe('toCollectorTruncatableString', () => {
@@ -149,4 +150,23 @@ describe('transform', () => {
       ensureSpanIsCorrect(transform.toCollectorSpan(mockedReadableSpan));
     });
   });
+
+  describe('toCollectorResource', () => {
+    it('should convert resource', () => {
+      const resource = transform.toCollectorResource(
+        new Resource({
+          service: 'ui',
+          version: 1.0,
+          success: true,
+        })
+      );
+      assert.deepStrictEqual(resource, {
+        labels: {
+          service: 'ui',
+          version: '1',
+          success: 'true',
+        },
+      });
+    });
+  });
 });

packages/opentelemetry-exporter-collector/test/helper.ts

@@ -69,7 +69,11 @@ export const mockedReadableSpan: ReadableSpan = {
     },
   ],
   duration: [0, 8885000],
-  resource: Resource.empty(),
+  resource: new Resource({
+    service: 'ui',
+    version: 1,
+    cost: 112.12,
+  }),
 };
 
 export function ensureSpanIsCorrect(span: collectorTypes.Span) {

packages/opentelemetry-exporter-jaeger/src/transform.ts

@@ -64,6 +64,12 @@ export function spanToThrift(span: ReadableSpan): ThriftSpan {
   if (span.kind !== undefined) {
     tags.push({ key: 'span.kind', value: SpanKind[span.kind] });
   }
+  Object.keys(span.resource.labels).forEach(name =>
+    tags.push({
+      key: name,
+      value: toTagValue(span.resource.labels[name]),
+    })
+  );
 
   const spanTags: ThriftTag[] = ThriftUtils.getThriftTags(tags);
 

packages/opentelemetry-exporter-jaeger/test/transform.test.ts

@@ -70,7 +70,11 @@ describe('transform', () => {
           },
         ],
         duration: [32, 800000000],
-        resource: Resource.empty(),
+        resource: new Resource({
+          service: 'ui',
+          version: 1,
+          cost: 112.12,
+        }),
       };
 
       const thriftSpan = spanToThrift(readableSpan);
@@ -95,8 +99,18 @@ describe('transform', () => {
         thriftSpan.startTime,
         Utils.encodeInt64(hrTimeToMicroseconds(readableSpan.startTime))
       );
-      assert.strictEqual(thriftSpan.tags.length, 6);
-      const [tag1, tag2, tag3, tag4, tag5, tag6] = thriftSpan.tags;
+      assert.strictEqual(thriftSpan.tags.length, 9);
+      const [
+        tag1,
+        tag2,
+        tag3,
+        tag4,
+        tag5,
+        tag6,
+        tag7,
+        tag8,
+        tag9,
+      ] = thriftSpan.tags;
       assert.strictEqual(tag1.key, 'testBool');
       assert.strictEqual(tag1.vType, 'BOOL');
       assert.strictEqual(tag1.vBool, true);
@@ -115,6 +129,15 @@ describe('transform', () => {
       assert.strictEqual(tag6.key, 'span.kind');
       assert.strictEqual(tag6.vType, 'STRING');
       assert.strictEqual(tag6.vStr, 'INTERNAL');
+      assert.strictEqual(tag7.key, 'service');
+      assert.strictEqual(tag7.vType, 'STRING');
+      assert.strictEqual(tag7.vStr, 'ui');
+      assert.strictEqual(tag8.key, 'version');
+      assert.strictEqual(tag8.vType, 'DOUBLE');
+      assert.strictEqual(tag8.vDouble, 1);
+      assert.strictEqual(tag9.key, 'cost');
+      assert.strictEqual(tag9.vType, 'DOUBLE');
+      assert.strictEqual(tag9.vDouble, 112.12);
       assert.strictEqual(thriftSpan.references.length, 0);
 
       assert.strictEqual(thriftSpan.logs.length, 1);

packages/opentelemetry-exporter-stackdriver-trace/package.json

@@ -41,7 +41,6 @@
     "access": "public"
   },
   "devDependencies": {
-    "@opentelemetry/resources": "^0.4.0",
     "@types/mocha": "^5.2.7",
     "@types/nock": "^11.1.0",
     "@types/node": "^12.6.9",
@@ -63,6 +62,7 @@
     "@opentelemetry/api": "^0.4.0",
     "@opentelemetry/base": "^0.4.0",
     "@opentelemetry/core": "^0.4.0",
+    "@opentelemetry/resources": "^0.4.0",
     "@opentelemetry/tracing": "^0.4.0",
     "google-auth-library": "^5.7.0",
     "googleapis": "^46.0.0"

packages/opentelemetry-exporter-stackdriver-trace/src/transform.ts

@@ -30,6 +30,7 @@ import {
   TruncatableString,
 } from './types';
 import { VERSION } from './version';
+import { Resource } from '@opentelemetry/resources';
 
 const AGENT_LABEL_KEY = 'g.co/agent';
 const AGENT_LABEL_VALUE = `opentelemetry-js [${CORE_VERSION}]; stackdriver-trace-exporter [${VERSION}]`;
@@ -38,10 +39,14 @@ export function getReadableSpanTransformer(
   projectId: string
 ): (span: ReadableSpan) => Span {
   return span => {
-    const attributes = transformAttributes(span.attributes, {
-      project_id: projectId,
-      [AGENT_LABEL_KEY]: AGENT_LABEL_VALUE,
-    });
+    const attributes = transformAttributes(
+      span.attributes,
+      {
+        project_id: projectId,
+        [AGENT_LABEL_KEY]: AGENT_LABEL_VALUE,
+      },
+      span.resource
+    );
 
     const out: Span = {
       attributes,
@@ -85,9 +90,16 @@ function transformLink(link: ot.Link): Link {
 
 function transformAttributes(
   requestAttributes: ot.Attributes = {},
-  serviceAttributes: ot.Attributes = {}
+  serviceAttributes: ot.Attributes = {},
+  resource: Resource = Resource.empty()
 ): Attributes {
-  const attributes = Object.assign({}, requestAttributes, serviceAttributes);
+  const attributes = Object.assign(
+    {},
+    requestAttributes,
+    serviceAttributes,
+    resource.labels
+  );
+
   const attributeMap = transformAttributeValues(attributes);
   return {
     attributeMap: attributeMap,

packages/opentelemetry-exporter-stackdriver-trace/test/transform.test.ts

@@ -51,7 +51,11 @@ describe('transform', () => {
       name: 'my-span',
       spanContext,
       status: { code: types.CanonicalCode.OK },
-      resource: Resource.empty(),
+      resource: new Resource({
+        service: 'ui',
+        version: 1,
+        cost: 112.12,
+      }),
     };
   });
 
@@ -67,6 +71,9 @@ describe('transform', () => {
               value: `opentelemetry-js [${CORE_VERSION}]; stackdriver-trace-exporter [${VERSION}]`,
             },
           },
+          cost: { intValue: '112' },
+          service: { stringValue: { value: 'ui' } },
+          version: { intValue: '1' },
         },
         droppedAttributesCount: 0,
       },
@@ -130,7 +137,7 @@ describe('transform', () => {
     assert.deepStrictEqual(result.attributes!.droppedAttributesCount, 1);
     assert.deepStrictEqual(
       Object.keys(result.attributes!.attributeMap!).length,
-      2
+      5
     );
   });
 

packages/opentelemetry-exporter-zipkin/package.json

@@ -39,7 +39,6 @@
     "access": "public"
   },
   "devDependencies": {
-    "@opentelemetry/resources": "^0.4.0",
     "@types/mocha": "^5.2.7",
     "@types/nock": "^10.0.3",
     "@types/node": "^12.6.9",
@@ -59,6 +58,7 @@
     "@opentelemetry/api": "^0.4.0",
     "@opentelemetry/base": "^0.4.0",
     "@opentelemetry/core": "^0.4.0",
+    "@opentelemetry/resources": "^0.4.0",
     "@opentelemetry/tracing": "^0.4.0"
   }
 }