diff --git a/plugins/node/opentelemetry-instrumentation-generic-pool/.eslintignore b/plugins/node/opentelemetry-instrumentation-generic-pool/.eslintignore
new file mode 100644
index 00000000000..378eac25d31
--- /dev/null
+++ b/plugins/node/opentelemetry-instrumentation-generic-pool/.eslintignore
@@ -0,0 +1 @@
+build
diff --git a/plugins/node/opentelemetry-instrumentation-generic-pool/.eslintrc.js b/plugins/node/opentelemetry-instrumentation-generic-pool/.eslintrc.js
new file mode 100644
index 00000000000..f756f4488b2
--- /dev/null
+++ b/plugins/node/opentelemetry-instrumentation-generic-pool/.eslintrc.js
@@ -0,0 +1,7 @@
+module.exports = {
+ "env": {
+ "mocha": true,
+ "node": true
+ },
+ ...require('../../../eslint.config.js')
+}
diff --git a/plugins/node/opentelemetry-instrumentation-generic-pool/.npmignore b/plugins/node/opentelemetry-instrumentation-generic-pool/.npmignore
new file mode 100644
index 00000000000..9505ba9450f
--- /dev/null
+++ b/plugins/node/opentelemetry-instrumentation-generic-pool/.npmignore
@@ -0,0 +1,4 @@
+/bin
+/coverage
+/doc
+/test
diff --git a/plugins/node/opentelemetry-instrumentation-generic-pool/LICENSE b/plugins/node/opentelemetry-instrumentation-generic-pool/LICENSE
new file mode 100644
index 00000000000..261eeb9e9f8
--- /dev/null
+++ b/plugins/node/opentelemetry-instrumentation-generic-pool/LICENSE
@@ -0,0 +1,201 @@
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
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+
+ 1. Definitions.
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+ 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
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diff --git a/plugins/node/opentelemetry-instrumentation-generic-pool/README.md b/plugins/node/opentelemetry-instrumentation-generic-pool/README.md
new file mode 100644
index 00000000000..7e6ab5a152b
--- /dev/null
+++ b/plugins/node/opentelemetry-instrumentation-generic-pool/README.md
@@ -0,0 +1,59 @@
+# OpenTelemetry Generic Pool Instrumentation for Node.js
+
+[![NPM Published Version][npm-img]][npm-url]
+[![dependencies][dependencies-image]][dependencies-url]
+[![devDependencies][devDependencies-image]][devDependencies-url]
+[![Apache License][license-image]][license-image]
+
+This module provides basic automatic instrumentation for [`generic-pool`](https://github.com/coopernurse/node-pool) creating a span for every acquire call.
+
+For automatic instrumentation see the
+[@opentelemetry/node](https://github.com/open-telemetry/opentelemetry-js/tree/main/packages/opentelemetry-node) package.
+
+## Installation
+
+```bash
+npm install --save @opentelemetry/instrumentation-generic-pool
+```
+### Supported Versions
+
+ - `>=2.0.0`
+
+## Usage
+
+```js
+const { ConsoleSpanExporter, SimpleSpanProcessor } = require('@opentelemetry/tracing');
+const { NodeTracerProvider } = require('@opentelemetry/node');
+const { registerInstrumentations } = require('@opentelemetry/instrumentation');
+const { GenericPoolInstrumentation } = require('@opentelemetry/instrumentation-generic-pool');
+
+const provider = new NodeTracerProvider();
+
+provider.addSpanProcessor(new SimpleSpanProcessor(new ConsoleSpanExporter()));
+provider.register();
+
+registerInstrumentations({
+ instrumentations: [new GenericPoolInstrumentation()],
+ tracerProvider: provider,
+});
+```
+
+## Useful links
+
+- For more information on OpenTelemetry, visit:
+- For more about OpenTelemetry JavaScript:
+- For help or feedback on this project, join us in [GitHub Discussions][discussions-url]
+
+## License
+
+Apache 2.0 - See [LICENSE][license-url] for more information.
+
+[discussions-url]: https://github.com/open-telemetry/opentelemetry-js/discussions
+[license-url]: https://github.com/open-telemetry/opentelemetry-js-contrib/blob/main/LICENSE
+[license-image]: https://img.shields.io/badge/license-Apache_2.0-green.svg?style=flat
+[dependencies-image]: https://status.david-dm.org/gh/open-telemetry/opentelemetry-js-contrib.svg?path=plugins%2Fnode%2Fopentelemetry-instrumentation-generic-pool
+[dependencies-url]: https://david-dm.org/open-telemetry/opentelemetry-js-contrib?path=plugins%2Fnode%2Fopentelemetry-instrumentation-generic-pool
+[devDependencies-image]: https://status.david-dm.org/gh/open-telemetry/opentelemetry-js-contrib.svg?path=plugins%2Fnode%2Fopentelemetry-instrumentation-generic-pool&type=dev
+[devDependencies-url]: https://david-dm.org/open-telemetry/opentelemetry-js-contrib?path=plugins%2Fnode%2Fopentelemetry-instrumentation-generic-pool&type=dev
+[npm-url]: https://www.npmjs.com/package/@opentelemetry/instrumentation-generic-pool
+[npm-img]: https://badge.fury.io/js/%40opentelemetry%2Finstrumentation-generic-pool.svg
diff --git a/plugins/node/opentelemetry-instrumentation-generic-pool/package.json b/plugins/node/opentelemetry-instrumentation-generic-pool/package.json
new file mode 100644
index 00000000000..edc3a599189
--- /dev/null
+++ b/plugins/node/opentelemetry-instrumentation-generic-pool/package.json
@@ -0,0 +1,66 @@
+{
+ "name": "@opentelemetry/instrumentation-generic-pool",
+ "version": "0.16.0",
+ "description": "OpenTelemetry Generic Pool automatic instrumentation package",
+ "main": "build/src/index.js",
+ "types": "build/src/index.d.ts",
+ "repository": "open-telemetry/opentelemetry-js-contrib",
+ "scripts": {
+ "test": "nyc ts-mocha -p tsconfig.json 'test/**/*.ts'",
+ "codecov": "nyc report --reporter=json && codecov -f coverage/*.json -p ../../",
+ "tdd": "yarn test -- --watch-extensions ts --watch",
+ "clean": "rimraf build/*",
+ "lint": "eslint . --ext .ts",
+ "lint:fix": "eslint . --ext .ts --fix",
+ "precompile": "tsc --version",
+ "version:update": "node ../../../scripts/version-update.js",
+ "compile": "npm run version:update && tsc -p .",
+ "prepare": "npm run compile",
+ "watch": "tsc -w"
+ },
+ "keywords": [
+ "opentelemetry",
+ "generic-pool",
+ "nodejs",
+ "tracing",
+ "instrumentation"
+ ],
+ "author": "OpenTelemetry Authors",
+ "license": "Apache-2.0",
+ "engines": {
+ "node": ">=8.5.0"
+ },
+ "files": [
+ "build/src/**/*.js",
+ "build/src/**/*.d.ts",
+ "doc",
+ "LICENSE",
+ "README.md"
+ ],
+ "publishConfig": {
+ "access": "public"
+ },
+ "devDependencies": {
+ "@opentelemetry/context-async-hooks": "0.19.0",
+ "@opentelemetry/node": "0.19.0",
+ "@opentelemetry/tracing": "0.19.0",
+ "@types/mocha": "7.0.2",
+ "@types/node": "14.0.27",
+ "@types/semver": "^7.3.6",
+ "codecov": "3.7.2",
+ "generic-pool": "^3.7.8",
+ "gts": "3.1.0",
+ "mocha": "7.2.0",
+ "nyc": "15.1.0",
+ "rimraf": "3.0.2",
+ "semver": "^7.3.5",
+ "ts-mocha": "8.0.0",
+ "typescript": "4.1.3"
+ },
+ "dependencies": {
+ "@opentelemetry/api": "1.0.0-rc.0",
+ "@opentelemetry/instrumentation": "^0.19.0",
+ "@opentelemetry/semantic-conventions": "^0.19.0",
+ "@types/generic-pool": "^3.1.9"
+ }
+}
diff --git a/plugins/node/opentelemetry-instrumentation-generic-pool/src/index.ts b/plugins/node/opentelemetry-instrumentation-generic-pool/src/index.ts
new file mode 100644
index 00000000000..3b04638af8e
--- /dev/null
+++ b/plugins/node/opentelemetry-instrumentation-generic-pool/src/index.ts
@@ -0,0 +1,20 @@
+/*
+ * 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.
+ */
+
+import GenericPoolInstrumentation from './instrumentation';
+
+export { GenericPoolInstrumentation };
+export default GenericPoolInstrumentation;
diff --git a/plugins/node/opentelemetry-instrumentation-generic-pool/src/instrumentation.ts b/plugins/node/opentelemetry-instrumentation-generic-pool/src/instrumentation.ts
new file mode 100644
index 00000000000..6bf5646eda7
--- /dev/null
+++ b/plugins/node/opentelemetry-instrumentation-generic-pool/src/instrumentation.ts
@@ -0,0 +1,187 @@
+/*
+ * 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.
+ */
+
+import * as api from '@opentelemetry/api';
+import {
+ InstrumentationBase,
+ InstrumentationNodeModuleDefinition,
+ isWrapped,
+} from '@opentelemetry/instrumentation';
+
+import type * as genericPool from 'generic-pool';
+
+import { VERSION } from './version';
+
+const MODULE_NAME = 'generic-pool';
+
+export default class Instrumentation extends InstrumentationBase<
+ typeof genericPool
+> {
+ // only used for v2 - v2.3)
+ private _isDisabled = false;
+
+ constructor() {
+ super(`@opentelemetry/instrumentation-${MODULE_NAME}`, VERSION);
+ }
+
+ init() {
+ return [
+ new InstrumentationNodeModuleDefinition(
+ MODULE_NAME,
+ ['>=3'],
+ (moduleExports, moduleVersion) => {
+ api.diag.debug(`Applying patch for ${MODULE_NAME}@${moduleVersion}`);
+ const Pool: any = moduleExports.Pool;
+ if (isWrapped(Pool.prototype.acquire)) {
+ this._unwrap(Pool.prototype, 'acquire');
+ }
+ this._wrap(
+ Pool.prototype,
+ 'acquire',
+ this._acquirePatcher.bind(this)
+ );
+ return moduleExports;
+ },
+ (moduleExports, moduleVersion) => {
+ api.diag.debug(`Removing patch for ${MODULE_NAME}@${moduleVersion}`);
+ const Pool: any = moduleExports.Pool;
+ this._unwrap(Pool.prototype, 'acquire');
+ return moduleExports;
+ }
+ ),
+ new InstrumentationNodeModuleDefinition(
+ MODULE_NAME,
+ ['^2.4'],
+ (moduleExports, moduleVersion) => {
+ api.diag.debug(`Applying patch for ${MODULE_NAME}@${moduleVersion}`);
+ const Pool: any = moduleExports.Pool;
+ if (isWrapped(Pool.prototype.acquire)) {
+ this._unwrap(Pool.prototype, 'acquire');
+ }
+ this._wrap(
+ Pool.prototype,
+ 'acquire',
+ this._acquireWithCallbacksPatcher.bind(this)
+ );
+ return moduleExports;
+ },
+ (moduleExports, moduleVersion) => {
+ api.diag.debug(`Removing patch for ${MODULE_NAME}@${moduleVersion}`);
+ const Pool: any = moduleExports.Pool;
+ this._unwrap(Pool.prototype, 'acquire');
+ return moduleExports;
+ }
+ ),
+ new InstrumentationNodeModuleDefinition(
+ MODULE_NAME,
+ ['2 - 2.3'],
+ (moduleExports, moduleVersion) => {
+ api.diag.debug(`Applying patch for ${MODULE_NAME}@${moduleVersion}`);
+ this._isDisabled = false;
+ if (isWrapped(moduleExports.Pool)) {
+ this._unwrap(moduleExports, 'Pool');
+ }
+ this._wrap(moduleExports, 'Pool', this._poolWrapper.bind(this));
+ return moduleExports;
+ },
+ (moduleExports, moduleVersion) => {
+ api.diag.debug(`Removing patch for ${MODULE_NAME}@${moduleVersion}`);
+ // since the object is created on the fly every time, we need to use
+ // a boolean switch here to disable the instrumentation
+ this._isDisabled = true;
+ return moduleExports;
+ }
+ ),
+ ];
+ }
+
+ private _acquirePatcher(original: genericPool.Pool['acquire']) {
+ const instrumentation = this;
+ return function wrapped_acquire(
+ this: genericPool.Pool,
+ ...args: any[]
+ ) {
+ const parent = api.context.active();
+ const span = instrumentation.tracer.startSpan(
+ 'generic-pool.aquire',
+ {},
+ parent
+ );
+
+ return api.context.with(api.setSpan(parent, span), () => {
+ return original.call(this, ...args).then(
+ value => {
+ span.end();
+ return value;
+ },
+ err => {
+ span.recordException(err);
+ span.end();
+ throw err;
+ }
+ );
+ });
+ };
+ }
+
+ private _poolWrapper(original: any) {
+ const instrumentation = this;
+ return function wrapped_pool(this: any) {
+ const pool = original.apply(this, arguments);
+ instrumentation._wrap(
+ pool,
+ 'acquire',
+ instrumentation._acquireWithCallbacksPatcher.bind(instrumentation)
+ );
+ return pool;
+ };
+ }
+
+ private _acquireWithCallbacksPatcher(original: any) {
+ const instrumentation = this;
+ return function wrapped_acquire(
+ this: genericPool.Pool,
+ cb: Function,
+ priority: number
+ ) {
+ // only used for v2 - v2.3
+ if (instrumentation._isDisabled) {
+ return original.call(this, cb, priority);
+ }
+ const parent = api.context.active();
+ const span = instrumentation.tracer.startSpan(
+ 'generic-pool.aquire',
+ {},
+ parent
+ );
+
+ return api.context.with(api.setSpan(parent, span), () => {
+ original.call(
+ this,
+ (err: unknown, client: unknown) => {
+ span.end();
+ // Not checking whether cb is a function because
+ // the original code doesn't do that either.
+ if (cb) {
+ return cb(err, client);
+ }
+ },
+ priority
+ );
+ });
+ };
+ }
+}
diff --git a/plugins/node/opentelemetry-instrumentation-generic-pool/src/version.ts b/plugins/node/opentelemetry-instrumentation-generic-pool/src/version.ts
new file mode 100644
index 00000000000..eacb17da857
--- /dev/null
+++ b/plugins/node/opentelemetry-instrumentation-generic-pool/src/version.ts
@@ -0,0 +1,18 @@
+/*
+ * 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.
+ */
+
+// this is autogenerated file, see scripts/version-update.js
+export const VERSION = '0.16.0';
diff --git a/plugins/node/opentelemetry-instrumentation-generic-pool/test/index.test.ts b/plugins/node/opentelemetry-instrumentation-generic-pool/test/index.test.ts
new file mode 100644
index 00000000000..1902599e784
--- /dev/null
+++ b/plugins/node/opentelemetry-instrumentation-generic-pool/test/index.test.ts
@@ -0,0 +1,120 @@
+/*
+ * 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.
+ */
+
+import { context, setSpan } from '@opentelemetry/api';
+import { NodeTracerProvider } from '@opentelemetry/node';
+import { AsyncHooksContextManager } from '@opentelemetry/context-async-hooks';
+import {
+ InMemorySpanExporter,
+ SimpleSpanProcessor,
+} from '@opentelemetry/tracing';
+
+import Instrumentation from '../src';
+const plugin = new Instrumentation();
+
+import * as util from 'util';
+import * as genericPool from 'generic-pool';
+import * as assert from 'assert';
+import * as semver from 'semver';
+
+const CLIENT = '_client_';
+
+const version = require('generic-pool/package.json').version;
+const isOldVersion = semver.satisfies(version, '2');
+
+const createPool = {
+ v3: () => {
+ const pool = genericPool.createPool({
+ create: () => {
+ return Promise.resolve(CLIENT);
+ },
+ destroy: () => {
+ return Promise.resolve();
+ },
+ });
+ return () => {
+ return pool.acquire();
+ };
+ },
+ v2: () => {
+ const Pool: any = genericPool.Pool;
+ const pool = Pool({
+ create: (cb: Function) => {
+ return cb(CLIENT);
+ },
+ destroy: () => {},
+ });
+ return () => {
+ // We need to do that on the fly every time, because the instrumentation
+ // changes the prototype and thus the function as well.
+ const acquire = util.promisify(pool.acquire).bind(pool);
+ return acquire();
+ };
+ },
+}[isOldVersion ? 'v2' : 'v3'];
+
+describe('GenericPool instrumentation', () => {
+ const provider = new NodeTracerProvider();
+ const memoryExporter = new InMemorySpanExporter();
+ const spanProcessor = new SimpleSpanProcessor(memoryExporter);
+ provider.addSpanProcessor(spanProcessor);
+ plugin.setTracerProvider(provider);
+ const tracer = provider.getTracer('default');
+ let contextManager: AsyncHooksContextManager;
+ let acquire: Function;
+
+ beforeEach(async () => {
+ plugin.enable();
+ acquire = createPool();
+ contextManager = new AsyncHooksContextManager();
+ context.setGlobalContextManager(contextManager.enable());
+ assert.strictEqual(memoryExporter.getFinishedSpans().length, 0);
+ });
+
+ afterEach(() => {
+ memoryExporter.reset();
+ context.disable();
+ plugin.disable();
+ });
+
+ it('should create a span for acquire', async () => {
+ assert.strictEqual(await acquire(), CLIENT);
+ const [span] = memoryExporter.getFinishedSpans();
+ assert.strictEqual(memoryExporter.getFinishedSpans().length, 1);
+ assert.strictEqual(span.name, 'generic-pool.aquire');
+ });
+
+ it('should attach it to the parent span', async () => {
+ const rootSpan: any = tracer.startSpan('clientSpan');
+
+ await context.with(setSpan(context.active(), rootSpan), async () => {
+ assert.strictEqual(await acquire(), CLIENT);
+ rootSpan.end();
+
+ assert.strictEqual(memoryExporter.getFinishedSpans().length, 2);
+
+ const [span] = memoryExporter.getFinishedSpans();
+ assert.strictEqual(span.name, 'generic-pool.aquire');
+ assert.strictEqual(span.parentSpanId, rootSpan.spanContext.spanId);
+ });
+ });
+
+ it('should not create anything if disabled', async () => {
+ plugin.disable();
+ assert.strictEqual(await acquire(), CLIENT);
+ assert.strictEqual(memoryExporter.getFinishedSpans().length, 0);
+ });
+});
diff --git a/plugins/node/opentelemetry-instrumentation-generic-pool/tsconfig.json b/plugins/node/opentelemetry-instrumentation-generic-pool/tsconfig.json
new file mode 100644
index 00000000000..28be80d266c
--- /dev/null
+++ b/plugins/node/opentelemetry-instrumentation-generic-pool/tsconfig.json
@@ -0,0 +1,11 @@
+{
+ "extends": "../../../tsconfig.base",
+ "compilerOptions": {
+ "rootDir": ".",
+ "outDir": "build"
+ },
+ "include": [
+ "src/**/*.ts",
+ "test/**/*.ts"
+ ]
+}