feat: Added segment synthesizer and provided ability to convert http client otel spans to external http trace segments (#2745)

Author: bizob2828

THIRD_PARTY_NOTICES.md

@@ -18,6 +18,7 @@ code, the source code can be found at [https://github.com/newrelic/node-newrelic
 * [@grpc/proto-loader](#grpcproto-loader)
 * [@newrelic/security-agent](#newrelicsecurity-agent)
 * [@opentelemetry/api](#opentelemetryapi)
+* [@opentelemetry/semantic-conventions](#opentelemetrysemantic-conventions)
 * [@tyriar/fibonacci-heap](#tyriarfibonacci-heap)
 * [concat-stream](#concat-stream)
 * [https-proxy-agent](#https-proxy-agent)
@@ -763,6 +764,215 @@ This product includes source derived from [@opentelemetry/api](https://github.co
 
 ```
 
+### @opentelemetry/semantic-conventions
+
+This product includes source derived from [@opentelemetry/semantic-conventions](https://github.com/open-telemetry/opentelemetry-js) ([v1.27.0](https://github.com/open-telemetry/opentelemetry-js/tree/v1.27.0)), distributed under the [Apache-2.0 License](https://github.com/open-telemetry/opentelemetry-js/blob/v1.27.0/LICENSE):
+
+```
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+```
+
 ### @tyriar/fibonacci-heap
 
 This product includes source derived from [@tyriar/fibonacci-heap](https://github.com/gwtw/ts-fibonacci-heap) ([v2.0.9](https://github.com/gwtw/ts-fibonacci-heap/tree/v2.0.9)), distributed under the [MIT License](https://github.com/gwtw/ts-fibonacci-heap/blob/v2.0.9/LICENSE):
@@ -825,7 +1035,7 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 ### https-proxy-agent
 
-This product includes source derived from [https-proxy-agent](https://github.com/TooTallNate/proxy-agents) ([v7.0.5](https://github.com/TooTallNate/proxy-agents/tree/v7.0.5)), distributed under the [MIT License](https://github.com/TooTallNate/proxy-agents/blob/v7.0.5/LICENSE):
+This product includes source derived from [https-proxy-agent](https://github.com/TooTallNate/proxy-agents) ([v7.0.4](https://github.com/TooTallNate/proxy-agents/tree/v7.0.4)), distributed under the [MIT License](https://github.com/TooTallNate/proxy-agents/blob/v7.0.4/LICENSE):
 
 ```
 (The MIT License)
@@ -1228,7 +1438,7 @@ SOFTWARE.
 
 ### semver
 
-This product includes source derived from [semver](https://github.com/npm/node-semver) ([v7.6.3](https://github.com/npm/node-semver/tree/v7.6.3)), distributed under the [ISC License](https://github.com/npm/node-semver/blob/v7.6.3/LICENSE):
+This product includes source derived from [semver](https://github.com/npm/node-semver) ([v7.6.2](https://github.com/npm/node-semver/tree/v7.6.2)), distributed under the [ISC License](https://github.com/npm/node-semver/blob/v7.6.2/LICENSE):
 
 ```
 The ISC License

lib/metrics/recorders/database.js

@@ -61,10 +61,10 @@ function recordQueryMetrics(segment, scope, transaction) {
 
   if (this.raw) {
     transaction.agent.queries.add({
-      segment, 
+      segment,
       transaction,
-      type: this.type.toLowerCase(), 
-      query: this.raw, 
+      type: this.type.toLowerCase(),
+      query: this.raw,
       trace: this.trace
     })
   }

lib/otel/rules.js

@@ -49,6 +49,7 @@ class Rule {
   #name
   #spanKinds
   #requiredAttributes
+  #type
   #mappings
 
   /**
@@ -63,6 +64,7 @@ class Rule {
     }
 
     this.#name = input.name
+    this.#type = input.type
     this.#spanKinds = input.matcher.required_span_kinds?.map((v) => v.toLowerCase()) ?? []
     this.#requiredAttributes = input.matcher.required_attribute_keys ?? []
     this.#mappings = input.target.attribute_mappings ?? []
@@ -72,6 +74,10 @@ class Rule {
     return this.#name
   }
 
+  get type() {
+    return this.#type
+  }
+
   get isServerRule() {
     return this.#spanKinds.includes(Rule.OTEL_SPAN_KIND_SERVER)
   }

lib/otel/rules.json

@@ -229,6 +229,7 @@
   },
   {
     "name": "OtelDbClientRedis1_24",
+    "type": "db",
     "matcher": {
       "required_span_kinds": [
         "client"
@@ -267,6 +268,7 @@
   },
   {
     "name": "OtelDbClient1_24",
+    "type": "db",
     "matcher": {
       "required_span_kinds": [
         "client"
@@ -302,6 +304,7 @@
   },
   {
     "name": "OtelHttpClient1_23",
+    "type": "external",
     "matcher": {
       "required_metric_names": [
         "http.client.request.duration"
@@ -338,6 +341,7 @@
   },
   {
     "name": "OtelHttpClient1_20",
+    "type": "external",
     "matcher": {
       "required_metric_names": [
         "http.client.duration"
@@ -410,6 +414,7 @@
   },
   {
     "name": "FallbackClient",
+    "type": "external",
     "matcher": {
       "required_metric_names": [
         "rpc.client.duration",

lib/otel/segment-synthesis.js

@@ -0,0 +1,50 @@
+/*
+ * Copyright 2024 New Relic Corporation. All rights reserved.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+'use strict'
+const { RulesEngine } = require('./rules')
+const defaultLogger = require('../logger').child({ component: 'segment-synthesizer' })
+const NAMES = require('../metrics/names')
+const { SEMATTRS_HTTP_HOST } = require('@opentelemetry/semantic-conventions')
+
+class SegmentSynthesizer {
+  constructor(agent, { logger = defaultLogger } = {}) {
+    this.agent = agent
+    this.logger = logger
+    this.engine = new RulesEngine()
+  }
+
+  synthesize(otelSpan) {
+    const rule = this.engine.test(otelSpan)
+    if (!rule?.type) {
+      this.logger.debug(
+        'Cannot match a rule to span name: %s, kind %s',
+        otelSpan?.name,
+        otelSpan?.kind
+      )
+      return
+    }
+
+    if (rule?.type === 'external') {
+      return this.createExternalSegment(otelSpan)
+    }
+    this.logger.debug('Found type: %s, no synthesize rule currently built', rule.type)
+  }
+
+  // TODO: should we move these to somewhere else and use in the places
+  // where external segments are created in our agent
+  createExternalSegment(otelSpan) {
+    const context = this.agent.tracer.getContext()
+    const host = otelSpan.attributes[SEMATTRS_HTTP_HOST] || 'Unknown'
+    const name = NAMES.EXTERNAL.PREFIX + host
+    return this.agent.tracer.createSegment({
+      name,
+      parent: context.segment,
+      transaction: context.transaction
+    })
+  }
+}
+
+module.exports = SegmentSynthesizer

package.json

@@ -198,6 +198,7 @@
     "@grpc/proto-loader": "^0.7.5",
     "@newrelic/security-agent": "^2.0.0",
     "@opentelemetry/api": "^1.9.0",
+    "@opentelemetry/semantic-conventions": "^1.27.0",
     "@tyriar/fibonacci-heap": "^2.0.7",
     "concat-stream": "^2.0.0",
     "https-proxy-agent": "^7.0.1",

test/integration/core/crypto.test.js

@@ -26,7 +26,6 @@ test('pbkdf2', function (t, end) {
     crypto.pbkdf2('hunter2', 'saltine', 5, 32, 'sha1', function (err, key) {
       assert.ok(!err, 'should not error')
       assert.equal(key.length, 32)
-      debugger
       verifySegments({ agent, end, name: 'crypto.pbkdf2' })
     })
   })

test/integration/core/fs.test.js

@@ -854,7 +854,6 @@ test('read', async function (t) {
       plan.equal(agent.getTransaction(), trans, 'should preserve transaction')
       const children = trans.trace.getChildren(trans.trace.root.id)
       plan.equal(children.length, 0, 'should not create any segments')
-
     })
   })