@opentelemetry/sdk-node - npm Package Compare versions

Comparing version 0.218.0 to 0.219.0

build/src/index.d.ts

@@ -13,3 +13,2 @@ export * as api from '@opentelemetry/api';
 export { startNodeSDK } from './start';
-export { buildSamplerFromConfig } from './utils';
 //# sourceMappingURL=index.d.ts.map

build/src/index.js

@@ -7,3 +7,3 @@ "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
-exports.buildSamplerFromConfig = exports.startNodeSDK = exports.NodeSDK = exports.tracing = exports.resources = exports.node = exports.metrics = exports.logs = exports.core = exports.contextBase = exports.api = void 0;
+exports.startNodeSDK = exports.NodeSDK = exports.tracing = exports.resources = exports.node = exports.metrics = exports.logs = exports.core = exports.contextBase = exports.api = void 0;
 // This is a meta-package, and these exist in to re-export *all* items from
@@ -27,4 +27,2 @@ // the individual packages as individual _namespaces_, so wildcard exports are
 Object.defineProperty(exports, "startNodeSDK", { enumerable: true, get: function () { return start_1.startNodeSDK; } });
-var utils_1 = require("./utils");
-Object.defineProperty(exports, "buildSamplerFromConfig", { enumerable: true, get: function () { return utils_1.buildSamplerFromConfig; } });
 //# sourceMappingURL=index.js.map

build/src/index.js.map

@@ -1,1 +0,1 @@
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+{"version":3,"file":"index.js","sourceRoot":"","sources":["../../src/index.ts"],"names":[],"mappings":";AAAA;;;GAGG;;;AAEH,2EAA2E;AAC3E,8EAA8E;AAC9E,2EAA2E;AAC3E,0CAA0C;AAE1C,yCAAyC;AACzC,4CAA0C;AAC1C,oDAAkD;AAClD,8CAA4C;AAC5C,kDAAgD;AAChD,wDAAsD;AACtD,wDAAsD;AACtD,wDAAsD;AACtD,2DAAyD;AACzD,wCAAwC;AAExC,6BAAgC;AAAvB,8FAAA,OAAO,OAAA;AAGhB,iCAAuC;AAA9B,qGAAA,YAAY,OAAA","sourcesContent":["/*\n * Copyright The OpenTelemetry Authors\n * SPDX-License-Identifier: Apache-2.0\n */\n\n// This is a meta-package, and these exist in to re-export *all* items from\n// the individual packages as individual _namespaces_, so wildcard exports are\n// appropriate here. Otherwise, it'd be a pain to enumerate and keep things\n// in-sync with all the upstream packages.\n\n/* eslint-disable no-restricted-syntax */\nexport * as api from '@opentelemetry/api';\nexport * as contextBase from '@opentelemetry/api';\nexport * as core from '@opentelemetry/core';\nexport * as logs from '@opentelemetry/sdk-logs';\nexport * as metrics from '@opentelemetry/sdk-metrics';\nexport * as node from '@opentelemetry/sdk-trace-node';\nexport * as resources from '@opentelemetry/resources';\nexport * as tracing from '@opentelemetry/sdk-trace-base';\n/* eslint-enable no-restricted-syntax */\n\nexport { NodeSDK } from './sdk';\nexport type { LoggerProviderConfig, MeterProviderConfig } from './sdk';\nexport type { NodeSDKConfiguration } from './types';\nexport { startNodeSDK } from './start';\n"]}

build/src/sdk.js

@@ -35,3 +35,3 @@ "use strict";
     if (enabledExporters.includes('none')) {
-        api_1.diag.info(`OTEL_METRICS_EXPORTER contains "none". Metric provider will not be initialized.`);
+        api_1.diag.info('OTEL_METRICS_EXPORTER contains "none". Metric provider will not be initialized.');
         return metricReaders;
@@ -138,3 +138,2 @@ }
             const spanProcessor = configuration.spanProcessor ??
-                // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
                 new sdk_trace_base_1.BatchSpanProcessor(configuration.traceExporter);
@@ -218,2 +217,3 @@ const spanProcessors = configuration.spanProcessors ?? [spanProcessor];
                 readers: this._meterProviderConfig.readers,
+                sdkMetricsEnabled,
             });
@@ -275,3 +275,3 @@ this._meterProvider = meterProvider;
         if (enabledExporters.includes('none')) {
-            api_1.diag.info(`OTEL_LOGS_EXPORTER contains "none". Logger provider will not be initialized.`);
+            api_1.diag.info('OTEL_LOGS_EXPORTER contains "none". Logger provider will not be initialized.');
             return;
@@ -278,0 +278,0 @@ }

build/src/sdk.js.map

@@ -1,1 +0,1 @@
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* Copyright The OpenTelemetry Authors\n * SPDX-License-Identifier: Apache-2.0\n */\n\nimport { metrics, trace, diag, DiagConsoleLogger } from '@opentelemetry/api';\nimport { logs } from '@opentelemetry/api-logs';\nimport type { Instrumentation } from '@opentelemetry/instrumentation';\nimport { registerInstrumentations } from '@opentelemetry/instrumentation';\nimport type {\n  Resource,\n  ResourceDetectionConfig,\n  ResourceDetector,\n} from '@opentelemetry/resources';\nimport {\n  defaultResource,\n  detectResources,\n  envDetector,\n  hostDetector,\n  processDetector,\n  resourceFromAttributes,\n} from '@opentelemetry/resources';\nimport type {\n  LogRecordProcessor,\n  LogRecordExporter,\n} from '@opentelemetry/sdk-logs';\nimport {\n  LoggerProvider,\n  ConsoleLogRecordExporter,\n  SimpleLogRecordProcessor,\n} from '@opentelemetry/sdk-logs';\nimport { OTLPLogExporter as OTLPHttpLogExporter } from '@opentelemetry/exporter-logs-otlp-http';\nimport { OTLPLogExporter as OTLPGrpcLogExporter } from '@opentelemetry/exporter-logs-otlp-grpc';\nimport { OTLPLogExporter as OTLPProtoLogExporter } from '@opentelemetry/exporter-logs-otlp-proto';\nimport { PrometheusExporter as PrometheusMetricExporter } from '@opentelemetry/exporter-prometheus';\nimport type { IMetricReader, ViewOptions } from '@opentelemetry/sdk-metrics';\nimport {\n  MeterProvider,\n  ConsoleMetricExporter,\n  PeriodicExportingMetricReader,\n} from '@opentelemetry/sdk-metrics';\nimport type { SpanProcessor } from '@opentelemetry/sdk-trace-base';\nimport { BatchSpanProcessor } from '@opentelemetry/sdk-trace-base';\nimport type { NodeTracerConfig } from '@opentelemetry/sdk-trace-node';\nimport { NodeTracerProvider } from '@opentelemetry/sdk-trace-node';\nimport { ATTR_SERVICE_NAME } from '@opentelemetry/semantic-conventions';\nimport type { NodeSDKConfiguration } from './types';\nimport {\n  getBooleanFromEnv,\n  getStringFromEnv,\n  getStringListFromEnv,\n  diagLogLevelFromString,\n} from '@opentelemetry/core';\nimport {\n  getResourceDetectorsFromEnv,\n  getSpanProcessorsFromEnv,\n  getPropagatorFromEnv,\n  setupPropagator,\n  setupContextManager,\n  getPeriodicExportingMetricReaderFromEnv,\n  getOtlpMetricExporterFromEnv,\n  getBatchLogRecordProcessorFromEnv,\n  getLoggerProviderConfigFromEnv,\n} from './utils';\n\ntype TracerProviderConfig = {\n  tracerConfig: NodeTracerConfig;\n  spanProcessors: SpanProcessor[];\n};\n\nexport type MeterProviderConfig = {\n  /**\n   * Reference to the MetricReader instances by the NodeSDK\n   */\n  readers?: IMetricReader[];\n  /**\n   * List of {@link ViewOptions}s that should be passed to the MeterProvider\n   */\n  views?: ViewOptions[];\n};\n\nexport type LoggerProviderConfig = {\n  /**\n   * Reference to the LoggerRecordProcessor instance by the NodeSDK\n   */\n  logRecordProcessors: LogRecordProcessor[];\n};\n\n/**\n *\n * @returns MetricReader[] if appropriate environment variables are configured\n */\nfunction getMetricReadersFromEnv(): IMetricReader[] {\n  const metricReaders: IMetricReader[] = [];\n  const enabledExporters = Array.from(\n    new Set(getStringListFromEnv('OTEL_METRICS_EXPORTER') ?? [])\n  );\n\n  if (enabledExporters.length === 0) {\n    diag.debug('OTEL_METRICS_EXPORTER is empty. Using default otlp exporter.');\n    enabledExporters.push('otlp');\n  }\n\n  if (enabledExporters.includes('none')) {\n    diag.info(\n      `OTEL_METRICS_EXPORTER contains \"none\". Metric provider will not be initialized.`\n    );\n    return metricReaders;\n  }\n\n  enabledExporters.forEach(exporter => {\n    if (exporter === 'otlp') {\n      metricReaders.push(\n        getPeriodicExportingMetricReaderFromEnv(getOtlpMetricExporterFromEnv())\n      );\n    } else if (exporter === 'console') {\n      metricReaders.push(\n        new PeriodicExportingMetricReader({\n          exporter: new ConsoleMetricExporter(),\n        })\n      );\n    } else if (exporter === 'prometheus') {\n      metricReaders.push(new PrometheusMetricExporter());\n    } else {\n      diag.warn(\n        `Unsupported OTEL_METRICS_EXPORTER value: \"${exporter}\". Supported values are: otlp, console, prometheus, none.`\n      );\n    }\n  });\n\n  return metricReaders;\n}\n\n/**\n * A setup helper for the OpenTelemetry SDKs (logs, metrics, traces).\n * <p> After successful setup using {@link NodeSDK#start()}, use `@opentelemetry/api` to obtain the registered components.\n * <p> Use the shutdown handler {@link NodeSDK#shutdown()} to ensure your telemetry is exported before the process exits.\n *\n * @example <caption> Register SDK by using environment variables </caption>\n *    const nodeSdk = new NodeSDK(); // providing no options uses OTEL_* environment variables for SDK setup.\n *    nodeSdk.start(); // registers all configured SDK components\n * @example <caption> Override environment variable config with your own components </caption>\n *    const nodeSdk = new NodeSDK({\n *      // override the list of metric reader with your own options and ignore environment variable config\n *      // explore the docs of other options to learn more!\n *      metricReaders: [ new PeriodicExportingMetricReader({\n *        exporter: new OTLPMetricsExporter()\n *        })]\n *    });\n *    nodeSdk.start(); // registers all configured SDK components\n */\nexport class NodeSDK {\n  private _tracerProviderConfig?: TracerProviderConfig;\n  private _loggerProviderConfig?: LoggerProviderConfig;\n  private _meterProviderConfig?: MeterProviderConfig;\n  private _instrumentations: Instrumentation[];\n\n  private _resource: Resource;\n  private _resourceDetectors: Array<ResourceDetector>;\n\n  private _autoDetectResources: boolean;\n\n  private _tracerProvider?: NodeTracerProvider;\n  private _loggerProvider?: LoggerProvider;\n  private _meterProvider?: MeterProvider;\n  private _serviceName?: string;\n  private _configuration?: Partial<NodeSDKConfiguration>;\n\n  private _disabled?: boolean;\n\n  /**\n   * Create a new NodeJS SDK instance\n   */\n  public constructor(configuration: Partial<NodeSDKConfiguration> = {}) {\n    if (getBooleanFromEnv('OTEL_SDK_DISABLED')) {\n      this._disabled = true;\n      // Functions with possible side-effects are set\n      // to no-op via the _disabled flag\n    }\n\n    const logLevel = getStringFromEnv('OTEL_LOG_LEVEL');\n    if (logLevel != null) {\n      diag.setLogger(new DiagConsoleLogger(), {\n        logLevel: diagLogLevelFromString(logLevel),\n      });\n    }\n\n    this._configuration = configuration;\n\n    this._resource = configuration.resource ?? defaultResource();\n    this._autoDetectResources = configuration.autoDetectResources ?? true;\n    if (!this._autoDetectResources) {\n      this._resourceDetectors = [];\n    } else if (configuration.resourceDetectors != null) {\n      this._resourceDetectors = configuration.resourceDetectors;\n    } else if (getStringFromEnv('OTEL_NODE_RESOURCE_DETECTORS')) {\n      this._resourceDetectors = getResourceDetectorsFromEnv();\n    } else {\n      this._resourceDetectors = [envDetector, processDetector, hostDetector];\n    }\n\n    this._serviceName = configuration.serviceName;\n\n    // If a tracer provider can be created from manual configuration, create it\n    if (\n      configuration.traceExporter ||\n      configuration.spanProcessor ||\n      configuration.spanProcessors\n    ) {\n      const tracerProviderConfig: NodeTracerConfig = {};\n\n      if (configuration.sampler) {\n        tracerProviderConfig.sampler = configuration.sampler;\n      }\n      if (configuration.spanLimits) {\n        tracerProviderConfig.spanLimits = configuration.spanLimits;\n      }\n      if (configuration.idGenerator) {\n        tracerProviderConfig.idGenerator = configuration.idGenerator;\n      }\n\n      if (configuration.spanProcessor) {\n        diag.warn(\n          \"The 'spanProcessor' option is deprecated. Please use 'spanProcessors' instead.\"\n        );\n      }\n\n      const spanProcessor =\n        configuration.spanProcessor ??\n        // eslint-disable-next-line @typescript-eslint/no-non-null-assertion\n        new BatchSpanProcessor(configuration.traceExporter!);\n\n      const spanProcessors = configuration.spanProcessors ?? [spanProcessor];\n\n      this._tracerProviderConfig = {\n        tracerConfig: tracerProviderConfig,\n        spanProcessors,\n      };\n    }\n\n    if (configuration.logRecordProcessors) {\n      this._loggerProviderConfig = {\n        logRecordProcessors: configuration.logRecordProcessors,\n      };\n    } else if (configuration.logRecordProcessor) {\n      this._loggerProviderConfig = {\n        logRecordProcessors: [configuration.logRecordProcessor],\n      };\n      diag.warn(\n        \"The 'logRecordProcessor' option is deprecated. Please use 'logRecordProcessors' instead.\"\n      );\n    } else {\n      this.configureLoggerProviderFromEnv();\n    }\n\n    if (configuration.metricReaders) {\n      this._meterProviderConfig = {\n        readers: configuration.metricReaders,\n        views: configuration.views,\n      };\n    } else if (configuration.metricReader) {\n      this._meterProviderConfig = {\n        readers: [configuration.metricReader],\n        views: configuration.views,\n      };\n      diag.warn(\n        \"The 'metricReader' option is deprecated. Please use 'metricReaders' instead.\"\n      );\n    } else {\n      this._meterProviderConfig = {\n        readers: getMetricReadersFromEnv(),\n        views: configuration.views,\n      };\n    }\n\n    this._instrumentations = configuration.instrumentations?.flat() ?? [];\n  }\n\n  /**\n   * Call this method to construct SDK components and register them with the OpenTelemetry API.\n   */\n  public start(): void {\n    if (this._disabled) {\n      return;\n    }\n\n    registerInstrumentations({\n      instrumentations: this._instrumentations,\n    });\n\n    setupContextManager(this._configuration?.contextManager);\n    setupPropagator(\n      this._configuration?.textMapPropagator === null\n        ? null // null means don't set, so we cannot fall back to env config.\n        : (this._configuration?.textMapPropagator ?? getPropagatorFromEnv())\n    );\n\n    if (this._autoDetectResources) {\n      const internalConfig: ResourceDetectionConfig = {\n        detectors: this._resourceDetectors,\n      };\n\n      this._resource = this._resource.merge(detectResources(internalConfig));\n    }\n\n    this._resource =\n      this._serviceName === undefined\n        ? this._resource\n        : this._resource.merge(\n            resourceFromAttributes({\n              [ATTR_SERVICE_NAME]: this._serviceName,\n            })\n          );\n\n    // While SDK metrics are unstable, we require an opt-in.\n    // https://opentelemetry.io/docs/specs/semconv/otel/sdk-metrics/\n    const sdkMetricsEnabled = getBooleanFromEnv(\n      'OTEL_NODE_EXPERIMENTAL_SDK_METRICS'\n    );\n\n    if (\n      this._meterProviderConfig?.readers &&\n      // only register if there is a reader, otherwise we waste compute/memory.\n      this._meterProviderConfig.readers.length > 0\n    ) {\n      const meterProvider = new MeterProvider({\n        resource: this._resource,\n        views: this._meterProviderConfig?.views ?? [],\n        readers: this._meterProviderConfig.readers,\n      });\n\n      this._meterProvider = meterProvider;\n      metrics.setGlobalMeterProvider(meterProvider);\n\n      // TODO: This is a workaround to fix https://github.com/open-telemetry/opentelemetry-js/issues/3609\n      // If the MeterProvider is not yet registered when instrumentations are registered, all metrics are dropped.\n      // This code is obsolete once https://github.com/open-telemetry/opentelemetry-js/issues/3622 is implemented.\n      for (const instrumentation of this._instrumentations) {\n        instrumentation.setMeterProvider(metrics.getMeterProvider());\n      }\n    }\n\n    const spanProcessors = this._tracerProviderConfig\n      ? this._tracerProviderConfig.spanProcessors\n      : getSpanProcessorsFromEnv();\n\n    // Only register if there is a span processor\n    if (spanProcessors.length > 0) {\n      this._tracerProvider = new NodeTracerProvider({\n        ...this._configuration,\n        resource: this._resource,\n        meterProvider: sdkMetricsEnabled ? this._meterProvider : undefined,\n        spanProcessors,\n      });\n      trace.setGlobalTracerProvider(this._tracerProvider);\n    }\n\n    if (this._loggerProviderConfig) {\n      const loggerProvider = new LoggerProvider({\n        ...getLoggerProviderConfigFromEnv(),\n        resource: this._resource,\n        processors: this._loggerProviderConfig.logRecordProcessors,\n        meterProvider: sdkMetricsEnabled ? this._meterProvider : undefined,\n      });\n\n      this._loggerProvider = loggerProvider;\n\n      logs.setGlobalLoggerProvider(loggerProvider);\n    }\n  }\n\n  public shutdown(): Promise<void> {\n    const promises: Promise<unknown>[] = [];\n    if (this._tracerProvider) {\n      promises.push(this._tracerProvider.shutdown());\n    }\n    if (this._loggerProvider) {\n      promises.push(this._loggerProvider.shutdown());\n    }\n    if (this._meterProvider) {\n      promises.push(this._meterProvider.shutdown());\n    }\n\n    return (\n      Promise.all(promises)\n        // return void instead of the array from Promise.all\n        .then(() => {})\n    );\n  }\n\n  private configureLoggerProviderFromEnv(): void {\n    const enabledExporters = Array.from(\n      new Set(getStringListFromEnv('OTEL_LOGS_EXPORTER') ?? [])\n    );\n\n    if (enabledExporters.length === 0) {\n      diag.debug('OTEL_LOGS_EXPORTER is empty. Using default otlp exporter.');\n      enabledExporters.push('otlp');\n    }\n\n    if (enabledExporters.includes('none')) {\n      diag.info(\n        `OTEL_LOGS_EXPORTER contains \"none\". Logger provider will not be initialized.`\n      );\n      return;\n    }\n\n    const exporters: LogRecordExporter[] = [];\n\n    enabledExporters.forEach(exporter => {\n      if (exporter === 'otlp') {\n        const protocol =\n          (\n            getStringFromEnv('OTEL_EXPORTER_OTLP_LOGS_PROTOCOL') ??\n            getStringFromEnv('OTEL_EXPORTER_OTLP_PROTOCOL')\n          )?.trim() || 'http/protobuf'; // Using || to also fall back on empty string\n\n        switch (protocol) {\n          case 'grpc':\n            exporters.push(new OTLPGrpcLogExporter());\n            break;\n          case 'http/json':\n            exporters.push(new OTLPHttpLogExporter());\n            break;\n          case 'http/protobuf':\n            exporters.push(new OTLPProtoLogExporter());\n            break;\n          default:\n            diag.warn(\n              `Unsupported OTLP logs protocol: \"${protocol}\". Using http/protobuf.`\n            );\n            exporters.push(new OTLPProtoLogExporter());\n        }\n      } else if (exporter === 'console') {\n        exporters.push(new ConsoleLogRecordExporter());\n      } else {\n        diag.warn(\n          `Unsupported OTEL_LOGS_EXPORTER value: \"${exporter}\". Supported values are: otlp, console, none.`\n        );\n      }\n    });\n\n    if (exporters.length > 0) {\n      this._loggerProviderConfig = {\n        logRecordProcessors: exporters.map(exporter => {\n          if (exporter instanceof ConsoleLogRecordExporter) {\n            return new SimpleLogRecordProcessor(exporter);\n          } else {\n            return getBatchLogRecordProcessorFromEnv(exporter);\n          }\n        }),\n      };\n    }\n  }\n}\n"]}
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* Copyright The OpenTelemetry Authors\n * SPDX-License-Identifier: Apache-2.0\n */\n\nimport { metrics, trace, diag, DiagConsoleLogger } from '@opentelemetry/api';\nimport { logs } from '@opentelemetry/api-logs';\nimport type { Instrumentation } from '@opentelemetry/instrumentation';\nimport { registerInstrumentations } from '@opentelemetry/instrumentation';\nimport type {\n  Resource,\n  ResourceDetectionConfig,\n  ResourceDetector,\n} from '@opentelemetry/resources';\nimport {\n  defaultResource,\n  detectResources,\n  envDetector,\n  hostDetector,\n  processDetector,\n  resourceFromAttributes,\n} from '@opentelemetry/resources';\nimport type {\n  LogRecordProcessor,\n  LogRecordExporter,\n} from '@opentelemetry/sdk-logs';\nimport {\n  LoggerProvider,\n  ConsoleLogRecordExporter,\n  SimpleLogRecordProcessor,\n} from '@opentelemetry/sdk-logs';\nimport { OTLPLogExporter as OTLPHttpLogExporter } from '@opentelemetry/exporter-logs-otlp-http';\nimport { OTLPLogExporter as OTLPGrpcLogExporter } from '@opentelemetry/exporter-logs-otlp-grpc';\nimport { OTLPLogExporter as OTLPProtoLogExporter } from '@opentelemetry/exporter-logs-otlp-proto';\nimport { PrometheusExporter as PrometheusMetricExporter } from '@opentelemetry/exporter-prometheus';\nimport type { IMetricReader, ViewOptions } from '@opentelemetry/sdk-metrics';\nimport {\n  MeterProvider,\n  ConsoleMetricExporter,\n  PeriodicExportingMetricReader,\n} from '@opentelemetry/sdk-metrics';\nimport type { SpanProcessor } from '@opentelemetry/sdk-trace-base';\nimport { BatchSpanProcessor } from '@opentelemetry/sdk-trace-base';\nimport type { NodeTracerConfig } from '@opentelemetry/sdk-trace-node';\nimport { NodeTracerProvider } from '@opentelemetry/sdk-trace-node';\nimport { ATTR_SERVICE_NAME } from '@opentelemetry/semantic-conventions';\nimport type { NodeSDKConfiguration } from './types';\nimport {\n  getBooleanFromEnv,\n  getStringFromEnv,\n  getStringListFromEnv,\n  diagLogLevelFromString,\n} from '@opentelemetry/core';\nimport {\n  getResourceDetectorsFromEnv,\n  getSpanProcessorsFromEnv,\n  getPropagatorFromEnv,\n  setupPropagator,\n  setupContextManager,\n  getPeriodicExportingMetricReaderFromEnv,\n  getOtlpMetricExporterFromEnv,\n  getBatchLogRecordProcessorFromEnv,\n  getLoggerProviderConfigFromEnv,\n} from './utils';\n\ntype TracerProviderConfig = {\n  tracerConfig: NodeTracerConfig;\n  spanProcessors: SpanProcessor[];\n};\n\nexport type MeterProviderConfig = {\n  /**\n   * Reference to the MetricReader instances by the NodeSDK\n   */\n  readers?: IMetricReader[];\n  /**\n   * List of {@link ViewOptions}s that should be passed to the MeterProvider\n   */\n  views?: ViewOptions[];\n};\n\nexport type LoggerProviderConfig = {\n  /**\n   * Reference to the LoggerRecordProcessor instance by the NodeSDK\n   */\n  logRecordProcessors: LogRecordProcessor[];\n};\n\n/**\n *\n * @returns MetricReader[] if appropriate environment variables are configured\n */\nfunction getMetricReadersFromEnv(): IMetricReader[] {\n  const metricReaders: IMetricReader[] = [];\n  const enabledExporters = Array.from(\n    new Set(getStringListFromEnv('OTEL_METRICS_EXPORTER') ?? [])\n  );\n\n  if (enabledExporters.length === 0) {\n    diag.debug('OTEL_METRICS_EXPORTER is empty. Using default otlp exporter.');\n    enabledExporters.push('otlp');\n  }\n\n  if (enabledExporters.includes('none')) {\n    diag.info(\n      'OTEL_METRICS_EXPORTER contains \"none\". Metric provider will not be initialized.'\n    );\n    return metricReaders;\n  }\n\n  enabledExporters.forEach(exporter => {\n    if (exporter === 'otlp') {\n      metricReaders.push(\n        getPeriodicExportingMetricReaderFromEnv(getOtlpMetricExporterFromEnv())\n      );\n    } else if (exporter === 'console') {\n      metricReaders.push(\n        new PeriodicExportingMetricReader({\n          exporter: new ConsoleMetricExporter(),\n        })\n      );\n    } else if (exporter === 'prometheus') {\n      metricReaders.push(new PrometheusMetricExporter());\n    } else {\n      diag.warn(\n        `Unsupported OTEL_METRICS_EXPORTER value: \"${exporter}\". Supported values are: otlp, console, prometheus, none.`\n      );\n    }\n  });\n\n  return metricReaders;\n}\n\n/**\n * A setup helper for the OpenTelemetry SDKs (logs, metrics, traces).\n * <p> After successful setup using {@link NodeSDK#start()}, use `@opentelemetry/api` to obtain the registered components.\n * <p> Use the shutdown handler {@link NodeSDK#shutdown()} to ensure your telemetry is exported before the process exits.\n *\n * @example <caption> Register SDK by using environment variables </caption>\n *    const nodeSdk = new NodeSDK(); // providing no options uses OTEL_* environment variables for SDK setup.\n *    nodeSdk.start(); // registers all configured SDK components\n * @example <caption> Override environment variable config with your own components </caption>\n *    const nodeSdk = new NodeSDK({\n *      // override the list of metric reader with your own options and ignore environment variable config\n *      // explore the docs of other options to learn more!\n *      metricReaders: [ new PeriodicExportingMetricReader({\n *        exporter: new OTLPMetricsExporter()\n *        })]\n *    });\n *    nodeSdk.start(); // registers all configured SDK components\n */\nexport class NodeSDK {\n  private _tracerProviderConfig?: TracerProviderConfig;\n  private _loggerProviderConfig?: LoggerProviderConfig;\n  private _meterProviderConfig?: MeterProviderConfig;\n  private _instrumentations: Instrumentation[];\n\n  private _resource: Resource;\n  private _resourceDetectors: Array<ResourceDetector>;\n\n  private _autoDetectResources: boolean;\n\n  private _tracerProvider?: NodeTracerProvider;\n  private _loggerProvider?: LoggerProvider;\n  private _meterProvider?: MeterProvider;\n  private _serviceName?: string;\n  private _configuration?: Partial<NodeSDKConfiguration>;\n\n  private _disabled?: boolean;\n\n  /**\n   * Create a new NodeJS SDK instance\n   */\n  public constructor(configuration: Partial<NodeSDKConfiguration> = {}) {\n    if (getBooleanFromEnv('OTEL_SDK_DISABLED')) {\n      this._disabled = true;\n      // Functions with possible side-effects are set\n      // to no-op via the _disabled flag\n    }\n\n    const logLevel = getStringFromEnv('OTEL_LOG_LEVEL');\n    if (logLevel != null) {\n      diag.setLogger(new DiagConsoleLogger(), {\n        logLevel: diagLogLevelFromString(logLevel),\n      });\n    }\n\n    this._configuration = configuration;\n\n    this._resource = configuration.resource ?? defaultResource();\n    this._autoDetectResources = configuration.autoDetectResources ?? true;\n    if (!this._autoDetectResources) {\n      this._resourceDetectors = [];\n    } else if (configuration.resourceDetectors != null) {\n      this._resourceDetectors = configuration.resourceDetectors;\n    } else if (getStringFromEnv('OTEL_NODE_RESOURCE_DETECTORS')) {\n      this._resourceDetectors = getResourceDetectorsFromEnv();\n    } else {\n      this._resourceDetectors = [envDetector, processDetector, hostDetector];\n    }\n\n    this._serviceName = configuration.serviceName;\n\n    // If a tracer provider can be created from manual configuration, create it\n    if (\n      configuration.traceExporter ||\n      configuration.spanProcessor ||\n      configuration.spanProcessors\n    ) {\n      const tracerProviderConfig: NodeTracerConfig = {};\n\n      if (configuration.sampler) {\n        tracerProviderConfig.sampler = configuration.sampler;\n      }\n      if (configuration.spanLimits) {\n        tracerProviderConfig.spanLimits = configuration.spanLimits;\n      }\n      if (configuration.idGenerator) {\n        tracerProviderConfig.idGenerator = configuration.idGenerator;\n      }\n\n      if (configuration.spanProcessor) {\n        diag.warn(\n          \"The 'spanProcessor' option is deprecated. Please use 'spanProcessors' instead.\"\n        );\n      }\n\n      const spanProcessor =\n        configuration.spanProcessor ??\n        new BatchSpanProcessor(configuration.traceExporter!);\n\n      const spanProcessors = configuration.spanProcessors ?? [spanProcessor];\n\n      this._tracerProviderConfig = {\n        tracerConfig: tracerProviderConfig,\n        spanProcessors,\n      };\n    }\n\n    if (configuration.logRecordProcessors) {\n      this._loggerProviderConfig = {\n        logRecordProcessors: configuration.logRecordProcessors,\n      };\n    } else if (configuration.logRecordProcessor) {\n      this._loggerProviderConfig = {\n        logRecordProcessors: [configuration.logRecordProcessor],\n      };\n      diag.warn(\n        \"The 'logRecordProcessor' option is deprecated. Please use 'logRecordProcessors' instead.\"\n      );\n    } else {\n      this.configureLoggerProviderFromEnv();\n    }\n\n    if (configuration.metricReaders) {\n      this._meterProviderConfig = {\n        readers: configuration.metricReaders,\n        views: configuration.views,\n      };\n    } else if (configuration.metricReader) {\n      this._meterProviderConfig = {\n        readers: [configuration.metricReader],\n        views: configuration.views,\n      };\n      diag.warn(\n        \"The 'metricReader' option is deprecated. Please use 'metricReaders' instead.\"\n      );\n    } else {\n      this._meterProviderConfig = {\n        readers: getMetricReadersFromEnv(),\n        views: configuration.views,\n      };\n    }\n\n    this._instrumentations = configuration.instrumentations?.flat() ?? [];\n  }\n\n  /**\n   * Call this method to construct SDK components and register them with the OpenTelemetry API.\n   */\n  public start(): void {\n    if (this._disabled) {\n      return;\n    }\n\n    registerInstrumentations({\n      instrumentations: this._instrumentations,\n    });\n\n    setupContextManager(this._configuration?.contextManager);\n    setupPropagator(\n      this._configuration?.textMapPropagator === null\n        ? null // null means don't set, so we cannot fall back to env config.\n        : (this._configuration?.textMapPropagator ?? getPropagatorFromEnv())\n    );\n\n    if (this._autoDetectResources) {\n      const internalConfig: ResourceDetectionConfig = {\n        detectors: this._resourceDetectors,\n      };\n\n      this._resource = this._resource.merge(detectResources(internalConfig));\n    }\n\n    this._resource =\n      this._serviceName === undefined\n        ? this._resource\n        : this._resource.merge(\n            resourceFromAttributes({\n              [ATTR_SERVICE_NAME]: this._serviceName,\n            })\n          );\n\n    // While SDK metrics are unstable, we require an opt-in.\n    // https://opentelemetry.io/docs/specs/semconv/otel/sdk-metrics/\n    const sdkMetricsEnabled = getBooleanFromEnv(\n      'OTEL_NODE_EXPERIMENTAL_SDK_METRICS'\n    );\n\n    if (\n      this._meterProviderConfig?.readers &&\n      // only register if there is a reader, otherwise we waste compute/memory.\n      this._meterProviderConfig.readers.length > 0\n    ) {\n      const meterProvider = new MeterProvider({\n        resource: this._resource,\n        views: this._meterProviderConfig?.views ?? [],\n        readers: this._meterProviderConfig.readers,\n        sdkMetricsEnabled,\n      });\n\n      this._meterProvider = meterProvider;\n      metrics.setGlobalMeterProvider(meterProvider);\n\n      // TODO: This is a workaround to fix https://github.com/open-telemetry/opentelemetry-js/issues/3609\n      // If the MeterProvider is not yet registered when instrumentations are registered, all metrics are dropped.\n      // This code is obsolete once https://github.com/open-telemetry/opentelemetry-js/issues/3622 is implemented.\n      for (const instrumentation of this._instrumentations) {\n        instrumentation.setMeterProvider(metrics.getMeterProvider());\n      }\n    }\n\n    const spanProcessors = this._tracerProviderConfig\n      ? this._tracerProviderConfig.spanProcessors\n      : getSpanProcessorsFromEnv();\n\n    // Only register if there is a span processor\n    if (spanProcessors.length > 0) {\n      this._tracerProvider = new NodeTracerProvider({\n        ...this._configuration,\n        resource: this._resource,\n        meterProvider: sdkMetricsEnabled ? this._meterProvider : undefined,\n        spanProcessors,\n      });\n      trace.setGlobalTracerProvider(this._tracerProvider);\n    }\n\n    if (this._loggerProviderConfig) {\n      const loggerProvider = new LoggerProvider({\n        ...getLoggerProviderConfigFromEnv(),\n        resource: this._resource,\n        processors: this._loggerProviderConfig.logRecordProcessors,\n        meterProvider: sdkMetricsEnabled ? this._meterProvider : undefined,\n      });\n\n      this._loggerProvider = loggerProvider;\n\n      logs.setGlobalLoggerProvider(loggerProvider);\n    }\n  }\n\n  public shutdown(): Promise<void> {\n    const promises: Promise<unknown>[] = [];\n    if (this._tracerProvider) {\n      promises.push(this._tracerProvider.shutdown());\n    }\n    if (this._loggerProvider) {\n      promises.push(this._loggerProvider.shutdown());\n    }\n    if (this._meterProvider) {\n      promises.push(this._meterProvider.shutdown());\n    }\n\n    return (\n      Promise.all(promises)\n        // return void instead of the array from Promise.all\n        .then(() => {})\n    );\n  }\n\n  private configureLoggerProviderFromEnv(): void {\n    const enabledExporters = Array.from(\n      new Set(getStringListFromEnv('OTEL_LOGS_EXPORTER') ?? [])\n    );\n\n    if (enabledExporters.length === 0) {\n      diag.debug('OTEL_LOGS_EXPORTER is empty. Using default otlp exporter.');\n      enabledExporters.push('otlp');\n    }\n\n    if (enabledExporters.includes('none')) {\n      diag.info(\n        'OTEL_LOGS_EXPORTER contains \"none\". Logger provider will not be initialized.'\n      );\n      return;\n    }\n\n    const exporters: LogRecordExporter[] = [];\n\n    enabledExporters.forEach(exporter => {\n      if (exporter === 'otlp') {\n        const protocol =\n          (\n            getStringFromEnv('OTEL_EXPORTER_OTLP_LOGS_PROTOCOL') ??\n            getStringFromEnv('OTEL_EXPORTER_OTLP_PROTOCOL')\n          )?.trim() || 'http/protobuf'; // Using || to also fall back on empty string\n\n        switch (protocol) {\n          case 'grpc':\n            exporters.push(new OTLPGrpcLogExporter());\n            break;\n          case 'http/json':\n            exporters.push(new OTLPHttpLogExporter());\n            break;\n          case 'http/protobuf':\n            exporters.push(new OTLPProtoLogExporter());\n            break;\n          default:\n            diag.warn(\n              `Unsupported OTLP logs protocol: \"${protocol}\". Using http/protobuf.`\n            );\n            exporters.push(new OTLPProtoLogExporter());\n        }\n      } else if (exporter === 'console') {\n        exporters.push(new ConsoleLogRecordExporter());\n      } else {\n        diag.warn(\n          `Unsupported OTEL_LOGS_EXPORTER value: \"${exporter}\". Supported values are: otlp, console, none.`\n        );\n      }\n    });\n\n    if (exporters.length > 0) {\n      this._loggerProviderConfig = {\n        logRecordProcessors: exporters.map(exporter => {\n          if (exporter instanceof ConsoleLogRecordExporter) {\n            return new SimpleLogRecordProcessor(exporter);\n          } else {\n            return getBatchLogRecordProcessorFromEnv(exporter);\n          }\n        }),\n      };\n    }\n  }\n}\n"]}

build/src/start.js

@@ -119,4 +119,4 @@ "use strict";
             generalLimits: {
-                attributeValueLengthLimit: config.attribute_limits?.attribute_value_length_limit,
-                attributeCountLimit: config.attribute_limits?.attribute_count_limit,
+                attributeValueLengthLimit: config.attribute_limits?.attribute_value_length_limit ?? undefined,
+                attributeCountLimit: config.attribute_limits?.attribute_count_limit ?? undefined,
             },
@@ -123,0 +123,0 @@ // TODO (6616): support idGenerator configuration from config

build/src/start.js.map

@@ -1,1 +0,1 @@
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Set the diag logger, otherwise the diag.error will typically not be shown.\n    const logLevel = diagLogLevelFromSeverityNumberConfig();\n    diag.setLogger(new DiagConsoleLogger(), { logLevel });\n    diag.error(\n      `Could not load OpenTelemetry configuration, SDK will not be setup: ${configErr.message}`\n    );\n    return NOOP_SDK;\n  }\n\n  if (config.disabled) {\n    return NOOP_SDK;\n  }\n\n  const logLevel = diagLogLevelFromSeverityNumberConfig(config.log_level);\n  diag.setLogger(new DiagConsoleLogger(), { logLevel });\n\n  registerInstrumentations({\n    instrumentations: sdkOptions?.instrumentations?.flat() ?? [],\n  });\n\n  const components = create(config, sdkOptions);\n  context.setGlobalContextManager(components.contextManager);\n  if (components.loggerProvider) {\n    logs.setGlobalLoggerProvider(components.loggerProvider);\n  }\n  if (components.meterProvider) {\n    metrics.setGlobalMeterProvider(components.meterProvider);\n  }\n  if (components.tracerProvider) {\n    trace.setGlobalTracerProvider(components.tracerProvider);\n  }\n  if (components.propagator) {\n    propagation.setGlobalPropagator(components.propagator);\n  }\n\n  const shutdownFn = async () => {\n    const promises: Promise<unknown>[] = [];\n    if (components.loggerProvider) {\n      promises.push(components.loggerProvider.shutdown());\n    }\n    if (components.meterProvider) {\n      promises.push(components.meterProvider.shutdown());\n    }\n    if (components.tracerProvider) {\n      promises.push(components.tracerProvider.shutdown());\n    }\n    await Promise.all(promises);\n  };\n  return { shutdown: shutdownFn };\n}\n\n/**\n * Interpret configuration model and return SDK components.\n */\nfunction create(\n  config: ConfigurationModel,\n  sdkOptions?: SDKOptions\n): SDKComponents {\n  const defaultContextManager = new AsyncLocalStorageContextManager();\n  defaultContextManager.enable();\n  const components: SDKComponents = {\n    contextManager: defaultContextManager,\n  };\n  const resource = setupResource(config, sdkOptions);\n\n  const propagator =\n    sdkOptions?.textMapPropagator === null\n      ? null\n      : (sdkOptions?.textMapPropagator ??\n        getPropagatorFromConfiguration(config));\n  if (propagator) {\n    components.propagator = propagator;\n  }\n\n  const logProcessors = getLogRecordProcessorsFromConfiguration(config);\n  if (logProcessors) {\n    const loggerProvider = new LoggerProvider({\n      resource: resource,\n      processors: logProcessors,\n    });\n    components.loggerProvider = loggerProvider;\n  }\n\n  const meterReaders = getMeterReadersFromConfiguration(config);\n  if (meterReaders) {\n    const meterViews = getMeterViewsFromConfiguration(config);\n    const meterProvider = new MeterProvider({\n      resource: resource,\n      readers: meterReaders,\n      views: meterViews ?? [],\n    });\n    components.meterProvider = meterProvider;\n  }\n\n  const spanProcessors = getSpanProcessorsFromConfiguration(config);\n  if (spanProcessors) {\n    const spanLimits = getSpanLimitsFromConfiguration(config);\n    // TODO (6506): support sampler configuration from config\n    const tracerProvider = new BasicTracerProvider({\n      resource,\n      spanProcessors,\n      spanLimits,\n      generalLimits: {\n        attributeValueLengthLimit:\n          config.attribute_limits?.attribute_value_length_limit,\n        attributeCountLimit: config.attribute_limits?.attribute_count_limit,\n      },\n      // TODO (6616): support idGenerator configuration from config\n      // TODO (6624): support for `meterProvider: components.meterProvider`\n    });\n    components.tracerProvider = tracerProvider;\n  }\n\n  return components;\n}\n\nexport function setupResource(\n  config: ConfigurationModel,\n  sdkOptions?: SDKOptions\n): Resource {\n  let resource: Resource =\n    getResourceFromConfiguration(config) ?? defaultResource();\n  let resourceDetectors: ResourceDetector[] = [];\n\n  if (sdkOptions?.resourceDetectors != null) {\n    resourceDetectors = sdkOptions.resourceDetectors;\n  } else if (config.resource?.['detection/development']?.detectors) {\n    resourceDetectors = getResourceDetectorsFromConfiguration(config);\n  }\n\n  if (resourceDetectors.length > 0) {\n    const internalConfig: ResourceDetectionConfig = {\n      detectors: resourceDetectors,\n    };\n    resource = resource.merge(detectResources(internalConfig));\n  }\n\n  const instanceId = getInstanceID(config);\n  resource =\n    instanceId === undefined\n      ? resource\n      : resource.merge(\n          resourceFromAttributes({\n            [ATTR_SERVICE_INSTANCE_ID]: instanceId,\n          })\n        );\n\n  return resource;\n}\n"]}
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* Copyright The OpenTelemetry Authors\n * SPDX-License-Identifier: Apache-2.0\n */\nimport type {\n  ConfigFactory,\n  ConfigurationModel,\n} from '@opentelemetry/configuration';\nimport { createConfigFactory } from '@opentelemetry/configuration';\nimport {\n  context,\n  diag,\n  DiagConsoleLogger,\n  metrics,\n  trace,\n  propagation,\n} from '@opentelemetry/api';\nimport {\n  getInstanceID,\n  getLogRecordProcessorsFromConfiguration,\n  getMeterReadersFromConfiguration,\n  getMeterViewsFromConfiguration,\n  getPropagatorFromConfiguration,\n  getResourceDetectorsFromConfiguration,\n  getResourceFromConfiguration,\n  getSpanLimitsFromConfiguration,\n  getSpanProcessorsFromConfiguration,\n} from './utils';\nimport { registerInstrumentations } from '@opentelemetry/instrumentation';\nimport type { SDKComponents, SDKOptions } from './types';\nimport { LoggerProvider } from '@opentelemetry/sdk-logs';\nimport { MeterProvider } from '@opentelemetry/sdk-metrics';\nimport { logs } from '@opentelemetry/api-logs';\nimport type {\n  Resource,\n  ResourceDetectionConfig,\n  ResourceDetector,\n} from '@opentelemetry/resources';\nimport {\n  defaultResource,\n  detectResources,\n  resourceFromAttributes,\n} from '@opentelemetry/resources';\nimport { AsyncLocalStorageContextManager } from '@opentelemetry/context-async-hooks';\nimport { ATTR_SERVICE_INSTANCE_ID } from './semconv';\nimport { BasicTracerProvider } from '@opentelemetry/sdk-trace-base';\nimport { diagLogLevelFromSeverityNumberConfig } from './diag';\n\n// Exported for testing.\nexport const NOOP_SDK = {\n  shutdown: async () => {},\n};\n\n/**\n * @experimental Function to start the OpenTelemetry Node SDK\n * @param sdkOptions\n */\nexport function startNodeSDK(sdkOptions?: SDKOptions): {\n  shutdown: () => Promise<void>;\n} {\n  let config: ConfigurationModel;\n  try {\n    const configFactory: ConfigFactory = createConfigFactory();\n    config = configFactory.getConfigModel();\n  } catch (configErr) {\n    // Set the diag logger, otherwise the diag.error will typically not be shown.\n    const logLevel = diagLogLevelFromSeverityNumberConfig();\n    diag.setLogger(new DiagConsoleLogger(), { logLevel });\n    diag.error(\n      `Could not load OpenTelemetry configuration, SDK will not be setup: ${configErr.message}`\n    );\n    return NOOP_SDK;\n  }\n\n  if (config.disabled) {\n    return NOOP_SDK;\n  }\n\n  const logLevel = diagLogLevelFromSeverityNumberConfig(config.log_level);\n  diag.setLogger(new DiagConsoleLogger(), { logLevel });\n\n  registerInstrumentations({\n    instrumentations: sdkOptions?.instrumentations?.flat() ?? [],\n  });\n\n  const components = create(config, sdkOptions);\n  context.setGlobalContextManager(components.contextManager);\n  if (components.loggerProvider) {\n    logs.setGlobalLoggerProvider(components.loggerProvider);\n  }\n  if (components.meterProvider) {\n    metrics.setGlobalMeterProvider(components.meterProvider);\n  }\n  if (components.tracerProvider) {\n    trace.setGlobalTracerProvider(components.tracerProvider);\n  }\n  if (components.propagator) {\n    propagation.setGlobalPropagator(components.propagator);\n  }\n\n  const shutdownFn = async () => {\n    const promises: Promise<unknown>[] = [];\n    if (components.loggerProvider) {\n      promises.push(components.loggerProvider.shutdown());\n    }\n    if (components.meterProvider) {\n      promises.push(components.meterProvider.shutdown());\n    }\n    if (components.tracerProvider) {\n      promises.push(components.tracerProvider.shutdown());\n    }\n    await Promise.all(promises);\n  };\n  return { shutdown: shutdownFn };\n}\n\n/**\n * Interpret configuration model and return SDK components.\n */\nfunction create(\n  config: ConfigurationModel,\n  sdkOptions?: SDKOptions\n): SDKComponents {\n  const defaultContextManager = new AsyncLocalStorageContextManager();\n  defaultContextManager.enable();\n  const components: SDKComponents = {\n    contextManager: defaultContextManager,\n  };\n  const resource = setupResource(config, sdkOptions);\n\n  const propagator =\n    sdkOptions?.textMapPropagator === null\n      ? null\n      : (sdkOptions?.textMapPropagator ??\n        getPropagatorFromConfiguration(config));\n  if (propagator) {\n    components.propagator = propagator;\n  }\n\n  const logProcessors = getLogRecordProcessorsFromConfiguration(config);\n  if (logProcessors) {\n    const loggerProvider = new LoggerProvider({\n      resource: resource,\n      processors: logProcessors,\n    });\n    components.loggerProvider = loggerProvider;\n  }\n\n  const meterReaders = getMeterReadersFromConfiguration(config);\n  if (meterReaders) {\n    const meterViews = getMeterViewsFromConfiguration(config);\n    const meterProvider = new MeterProvider({\n      resource: resource,\n      readers: meterReaders,\n      views: meterViews ?? [],\n    });\n    components.meterProvider = meterProvider;\n  }\n\n  const spanProcessors = getSpanProcessorsFromConfiguration(config);\n  if (spanProcessors) {\n    const spanLimits = getSpanLimitsFromConfiguration(config);\n    // TODO (6506): support sampler configuration from config\n    const tracerProvider = new BasicTracerProvider({\n      resource,\n      spanProcessors,\n      spanLimits,\n      generalLimits: {\n        attributeValueLengthLimit:\n          config.attribute_limits?.attribute_value_length_limit ?? undefined,\n        attributeCountLimit:\n          config.attribute_limits?.attribute_count_limit ?? undefined,\n      },\n      // TODO (6616): support idGenerator configuration from config\n      // TODO (6624): support for `meterProvider: components.meterProvider`\n    });\n    components.tracerProvider = tracerProvider;\n  }\n\n  return components;\n}\n\nexport function setupResource(\n  config: ConfigurationModel,\n  sdkOptions?: SDKOptions\n): Resource {\n  let resource: Resource =\n    getResourceFromConfiguration(config) ?? defaultResource();\n  let resourceDetectors: ResourceDetector[] = [];\n\n  if (sdkOptions?.resourceDetectors != null) {\n    resourceDetectors = sdkOptions.resourceDetectors;\n  } else if (config.resource?.['detection/development']?.detectors) {\n    resourceDetectors = getResourceDetectorsFromConfiguration(config);\n  }\n\n  if (resourceDetectors.length > 0) {\n    const internalConfig: ResourceDetectionConfig = {\n      detectors: resourceDetectors,\n    };\n    resource = resource.merge(detectResources(internalConfig));\n  }\n\n  const instanceId = getInstanceID(config);\n  resource =\n    instanceId === undefined\n      ? resource\n      : resource.merge(\n          resourceFromAttributes({\n            [ATTR_SERVICE_INSTANCE_ID]: instanceId,\n          })\n        );\n\n  return resource;\n}\n"]}

build/src/utils.d.ts

@@ -60,3 +60,3 @@ /// <reference types="node" />
  */
-export declare function buildSamplerFromConfig(config: SamplerConfigModel): Sampler;
+export declare function buildSamplerFromConfig(samplerConfig: SamplerConfigModel): Sampler;
 //# sourceMappingURL=utils.d.ts.map

build/src/utils.js

@@ -23,2 +23,3 @@ "use strict";
 const otlp_exporter_base_1 = require("@opentelemetry/otlp-exporter-base");
+const otlp_grpc_exporter_base_1 = require("@opentelemetry/otlp-grpc-exporter-base");
 const sdk_metrics_1 = require("@opentelemetry/sdk-metrics");
@@ -37,9 +38,13 @@ const exporter_metrics_otlp_grpc_1 = require("@opentelemetry/exporter-metrics-otlp-grpc");
     if (config.resource && config.resource.attributes) {
-        const attr = {};
+        const attrs = {};
         for (let i = 0; i < config.resource.attributes.length; i++) {
             const a = config.resource.attributes[i];
-            attr[a.name] = a.value;
+            // https://github.com/open-telemetry/opentelemetry-configuration/issues/613
+            // will likely clarify that entries with a `null` value should be ignored.
+            if (a.value !== null) {
+                attrs[a.name] = a.value;
+            }
         }
-        return (0, resources_1.resourceFromAttributes)(attr, {
-            schemaUrl: config.resource.schema_url,
+        return (0, resources_1.resourceFromAttributes)(attrs, {
+            schemaUrl: config.resource.schema_url ?? undefined,
         });
@@ -79,11 +84,11 @@ }
         const result = [];
-        if (detector.host != null)
+        if (detector.host !== undefined)
             result.push(resources_1.hostDetector);
-        if (detector.os != null)
+        if (detector.os !== undefined)
             result.push(resources_1.osDetector);
-        if (detector.process != null)
+        if (detector.process !== undefined)
             result.push(resources_1.processDetector);
-        if (detector.service != null)
+        if (detector.service !== undefined)
             result.push(resources_1.serviceInstanceIdDetector);
-        if (detector.env != null)
+        if (detector.env !== undefined)
             result.push(resources_1.envDetector);
@@ -364,10 +369,33 @@ return result;
 exports.getOtlpMetricExporterFromEnv = getOtlpMetricExporterFromEnv;
+function getMetricProducersFromConfiguration(producers) {
+    if (!producers || producers.length === 0) {
+        return undefined;
+    }
+    const result = [];
+    for (const producer of producers) {
+        if (producer.opencensus) {
+            try {
+                const { OpenCensusMetricProducer,
+                // eslint-disable-next-line @typescript-eslint/no-require-imports
+                 } = require('@opentelemetry/shim-opencensus');
+                result.push(new OpenCensusMetricProducer());
+            }
+            catch {
+                api_1.diag.warn('OpenCensus metric producer configured but @opentelemetry/shim-opencensus is not installed.');
+            }
+        }
+        else {
+            api_1.diag.warn('Unsupported metric producer configured.');
+        }
+    }
+    return result.length > 0 ? result : undefined;
+}
 function getPeriodicMetricReaderFromConfiguration(periodic) {
     if (periodic.exporter) {
         let exporter;
-        if (periodic.exporter.otlp_http) {
-            const encoding = periodic.exporter.otlp_http.encoding;
+        if (periodic.exporter.otlp_http !== undefined) {
+            const encoding = periodic.exporter.otlp_http?.encoding ?? 'protobuf';
             if (encoding === 'json') {
                 exporter = new exporter_metrics_otlp_http_1.OTLPMetricExporter({
-                    compression: periodic.exporter.otlp_http.compression === 'gzip'
+                    compression: periodic.exporter.otlp_http?.compression === 'gzip'
                         ? otlp_exporter_base_1.CompressionAlgorithm.GZIP
@@ -379,3 +407,3 @@ : otlp_exporter_base_1.CompressionAlgorithm.NONE,
                 exporter = new exporter_metrics_otlp_proto_1.OTLPMetricExporter({
-                    compression: periodic.exporter.otlp_http.compression === 'gzip'
+                    compression: periodic.exporter.otlp_http?.compression === 'gzip'
                         ? otlp_exporter_base_1.CompressionAlgorithm.GZIP
@@ -389,5 +417,5 @@ : otlp_exporter_base_1.CompressionAlgorithm.NONE,
         }
-        if (periodic.exporter.otlp_grpc) {
+        if (periodic.exporter.otlp_grpc !== undefined) {
             exporter = new exporter_metrics_otlp_grpc_1.OTLPMetricExporter({
-                compression: periodic.exporter.otlp_grpc.compression === 'gzip'
+                compression: periodic.exporter.otlp_grpc?.compression === 'gzip'
                     ? otlp_exporter_base_1.CompressionAlgorithm.GZIP
@@ -397,2 +425,3 @@ : otlp_exporter_base_1.CompressionAlgorithm.NONE,
         }
+        const metricProducers = getMetricProducersFromConfiguration(periodic.producers);
         if (exporter) {
@@ -404,11 +433,13 @@ // TODO(6425): add cardinality_limits
                 exporter,
+                metricProducers,
             });
         }
-        if (periodic.exporter.console) {
+        if (periodic.exporter.console !== undefined) {
             return new sdk_metrics_1.PeriodicExportingMetricReader({
                 exporter: new sdk_metrics_1.ConsoleMetricExporter(),
+                metricProducers,
             });
         }
     }
-    api_1.diag.warn(`Unsupported Metric Exporter.`);
+    api_1.diag.warn('Unsupported Metric Exporter.');
     return undefined;
@@ -447,36 +478,39 @@ }
 function getLogRecordExporter(exporter) {
-    if (exporter.otlp_http) {
-        const encoding = exporter.otlp_http.encoding;
+    if (exporter.otlp_http !== undefined) {
+        const cfg = exporter.otlp_http;
+        const commonOpts = {
+            compression: cfg?.compression === 'gzip'
+                ? otlp_exporter_base_1.CompressionAlgorithm.GZIP
+                : otlp_exporter_base_1.CompressionAlgorithm.NONE,
+            url: cfg?.endpoint ?? undefined,
+            headers: getHeadersFromConfiguration(cfg?.headers),
+            timeoutMillis: validateExporterTimeout(cfg?.timeout),
+            httpAgentOptions: getHttpAgentOptionsFromTls(cfg?.tls),
+        };
+        const encoding = cfg?.encoding ?? 'protobuf';
         if (encoding === 'json') {
-            return new exporter_logs_otlp_http_1.OTLPLogExporter({
-                compression: exporter.otlp_http.compression === 'gzip'
-                    ? otlp_exporter_base_1.CompressionAlgorithm.GZIP
-                    : otlp_exporter_base_1.CompressionAlgorithm.NONE,
-            });
+            return new exporter_logs_otlp_http_1.OTLPLogExporter(commonOpts);
         }
         if (encoding === 'protobuf') {
-            return new exporter_logs_otlp_proto_1.OTLPLogExporter({
-                compression: exporter.otlp_http.compression === 'gzip'
-                    ? otlp_exporter_base_1.CompressionAlgorithm.GZIP
-                    : otlp_exporter_base_1.CompressionAlgorithm.NONE,
-            });
+            return new exporter_logs_otlp_proto_1.OTLPLogExporter(commonOpts);
         }
         api_1.diag.warn(`Unsupported OTLP logs encoding: ${encoding}. Using http/protobuf.`);
-        return new exporter_logs_otlp_proto_1.OTLPLogExporter({
-            compression: exporter.otlp_http.compression === 'gzip'
-                ? otlp_exporter_base_1.CompressionAlgorithm.GZIP
-                : otlp_exporter_base_1.CompressionAlgorithm.NONE,
-        });
+        return new exporter_logs_otlp_proto_1.OTLPLogExporter(commonOpts);
     }
-    else if (exporter.otlp_grpc) {
+    else if (exporter.otlp_grpc !== undefined) {
+        const cfg = exporter.otlp_grpc;
         return new exporter_logs_otlp_grpc_1.OTLPLogExporter({
-            compression: exporter.otlp_grpc.compression === 'gzip'
+            compression: cfg?.compression === 'gzip'
                 ? otlp_exporter_base_1.CompressionAlgorithm.GZIP
                 : otlp_exporter_base_1.CompressionAlgorithm.NONE,
+            url: cfg?.endpoint ?? undefined,
+            timeoutMillis: validateExporterTimeout(cfg?.timeout),
+            credentials: getGrpcCredentialsFromTls(cfg?.tls),
+            metadata: getGrpcMetadataFromHeaders(cfg?.headers),
         });
     }
-    else if (exporter.console) {
+    else if (exporter.console !== undefined) {
         return new sdk_logs_1.ConsoleLogRecordExporter();
     }
-    api_1.diag.warn(`Unsupported Exporter value. No Log Record Exporter registered`);
+    api_1.diag.warn('Unsupported Exporter value. No Log Record Exporter registered');
     return undefined;
@@ -492,6 +526,6 @@ }
                 logRecordProcessors.push(new sdk_logs_1.BatchLogRecordProcessor(exporter, {
-                    maxQueueSize: processor.batch.max_queue_size,
-                    maxExportBatchSize: processor.batch.max_export_batch_size,
-                    scheduledDelayMillis: processor.batch.schedule_delay,
-                    exportTimeoutMillis: processor.batch.export_timeout,
+                    maxQueueSize: processor.batch.max_queue_size ?? undefined,
+                    maxExportBatchSize: processor.batch.max_export_batch_size ?? undefined,
+                    scheduledDelayMillis: processor.batch.schedule_delay ?? undefined,
+                    exportTimeoutMillis: processor.batch.export_timeout ?? undefined,
                 }));
@@ -519,3 +553,5 @@ }
     headers.forEach(header => {
-        result[header.name] = header.value;
+        if (header.value !== null) {
+            result[header.name] = header.value;
+        }
     });
@@ -525,46 +561,81 @@ return result;
 exports.getHeadersFromConfiguration = getHeadersFromConfiguration;
+/**
+ * Validate an exporter timeout value. The spec says 0 means "no limit
+ * (infinity)" but the JS exporters don't support that yet (see #6617).
+ * Warn and return undefined so the exporter falls back to its default.
+ */
+function validateExporterTimeout(timeout) {
+    if (timeout === null) {
+        return undefined;
+    }
+    else if (timeout === 0) {
+        api_1.diag.warn('Exporter timeout of 0 (infinite) is not supported. Using default timeout.');
+        return undefined;
+    }
+    return timeout;
+}
 function getHttpAgentOptionsFromTls(tls) {
     if (tls && (tls.ca_file || tls.cert_file || tls.key_file)) {
-        const httpsAgentOptions = {};
-        if (tls.ca_file) {
-            try {
-                httpsAgentOptions.ca = fs.readFileSync(tls.ca_file);
-            }
-            catch (e) {
-                api_1.diag.warn(`Failed to read TLS CA file at ${tls.ca_file}: ${e}`);
-            }
+        return {
+            ca: readFileOrWarn(tls.ca_file, 'TLS CA'),
+            cert: readFileOrWarn(tls.cert_file, 'TLS cert'),
+            key: readFileOrWarn(tls.key_file, 'TLS key'),
+        };
+    }
+    return undefined;
+}
+exports.getHttpAgentOptionsFromTls = getHttpAgentOptionsFromTls;
+function getGrpcCredentialsFromTls(tls) {
+    if (tls?.insecure) {
+        return (0, otlp_grpc_exporter_base_1.createInsecureCredentials)();
+    }
+    const rootCert = readFileOrWarn(tls?.ca_file, 'TLS CA');
+    const privateKey = readFileOrWarn(tls?.key_file, 'TLS key');
+    const certChain = readFileOrWarn(tls?.cert_file, 'TLS cert');
+    if (rootCert || privateKey || certChain) {
+        try {
+            return (0, otlp_grpc_exporter_base_1.createSslCredentials)(rootCert, privateKey, certChain);
         }
-        if (tls.cert_file) {
-            try {
-                httpsAgentOptions.cert = fs.readFileSync(tls.cert_file);
-            }
-            catch (e) {
-                api_1.diag.warn(`Failed to read TLS cert file at ${tls.cert_file}: ${e}`);
-            }
+        catch (e) {
+            api_1.diag.warn(`Failed to create gRPC SSL credentials: ${e}`);
+            return undefined;
         }
-        if (tls.key_file) {
-            try {
-                httpsAgentOptions.key = fs.readFileSync(tls.key_file);
-            }
-            catch (e) {
-                api_1.diag.warn(`Failed to read TLS key file at ${tls.key_file}: ${e}`);
-            }
-        }
-        return httpsAgentOptions;
     }
     return undefined;
 }
-exports.getHttpAgentOptionsFromTls = getHttpAgentOptionsFromTls;
+function getGrpcMetadataFromHeaders(headers) {
+    if (!headers || headers.length === 0) {
+        return undefined;
+    }
+    const metadata = (0, otlp_grpc_exporter_base_1.createEmptyMetadata)();
+    for (const header of headers) {
+        if (header.value !== null) {
+            metadata.set(header.name, header.value);
+        }
+    }
+    return metadata;
+}
+function readFileOrWarn(filePath, label) {
+    if (!filePath)
+        return undefined;
+    try {
+        return fs.readFileSync(filePath);
+    }
+    catch (e) {
+        api_1.diag.warn(`Failed to read ${label} file at ${filePath}: ${e}`);
+        return undefined;
+    }
+}
 function getSpanExporter(exporter) {
-    if (exporter.otlp_http) {
-        const encoding = exporter.otlp_http.encoding;
+    if (exporter.otlp_http !== undefined) {
+        const encoding = exporter.otlp_http?.encoding ?? 'protobuf';
         if (encoding === 'json') {
             return new exporter_trace_otlp_http_1.OTLPTraceExporter({
-                compression: exporter.otlp_http.compression === 'gzip'
+                compression: exporter.otlp_http?.compression === 'gzip'
                     ? otlp_exporter_base_1.CompressionAlgorithm.GZIP
                     : otlp_exporter_base_1.CompressionAlgorithm.NONE,
-                url: exporter.otlp_http.endpoint,
-                headers: getHeadersFromConfiguration(exporter.otlp_http.headers),
-                timeoutMillis: exporter.otlp_http.timeout,
-                httpAgentOptions: getHttpAgentOptionsFromTls(exporter.otlp_http.tls),
+                url: exporter.otlp_http?.endpoint ?? undefined,
+                headers: getHeadersFromConfiguration(exporter.otlp_http?.headers),
+                timeoutMillis: validateExporterTimeout(exporter.otlp_http?.timeout),
+                httpAgentOptions: getHttpAgentOptionsFromTls(exporter.otlp_http?.tls),
             });
@@ -574,27 +645,27 @@ }
             return new exporter_trace_otlp_proto_1.OTLPTraceExporter({
-                compression: exporter.otlp_http.compression === 'gzip'
+                compression: exporter.otlp_http?.compression === 'gzip'
                     ? otlp_exporter_base_1.CompressionAlgorithm.GZIP
                     : otlp_exporter_base_1.CompressionAlgorithm.NONE,
-                url: exporter.otlp_http.endpoint,
-                headers: getHeadersFromConfiguration(exporter.otlp_http.headers),
-                timeoutMillis: exporter.otlp_http.timeout,
-                httpAgentOptions: getHttpAgentOptionsFromTls(exporter.otlp_http.tls),
+                url: exporter.otlp_http?.endpoint ?? undefined,
+                headers: getHeadersFromConfiguration(exporter.otlp_http?.headers),
+                timeoutMillis: validateExporterTimeout(exporter.otlp_http?.timeout),
+                httpAgentOptions: getHttpAgentOptionsFromTls(exporter.otlp_http?.tls),
             });
         }
     }
-    else if (exporter.otlp_grpc) {
+    else if (exporter.otlp_grpc !== undefined) {
         return new exporter_trace_otlp_grpc_1.OTLPTraceExporter({
-            compression: exporter.otlp_grpc.compression === 'gzip'
+            compression: exporter.otlp_grpc?.compression === 'gzip'
                 ? otlp_exporter_base_1.CompressionAlgorithm.GZIP
                 : otlp_exporter_base_1.CompressionAlgorithm.NONE,
-            url: exporter.otlp_grpc.endpoint,
-            timeoutMillis: exporter.otlp_grpc.timeout,
-            // TODO (6614): add support for credentials
-            // TODO (6615): add metadata (headers) support
+            url: exporter.otlp_grpc?.endpoint ?? undefined,
+            timeoutMillis: validateExporterTimeout(exporter.otlp_grpc?.timeout),
+            credentials: getGrpcCredentialsFromTls(exporter.otlp_grpc?.tls),
+            metadata: getGrpcMetadataFromHeaders(exporter.otlp_grpc?.headers),
         });
     }
-    else if (exporter.console) {
+    else if (exporter.console !== undefined) {
         return new sdk_trace_base_1.ConsoleSpanExporter();
     }
-    api_1.diag.warn(`Unsupported Exporter value. No Span Exporter registered`);
+    api_1.diag.warn('Unsupported Exporter value. No Span Exporter registered');
     return undefined;
@@ -610,6 +681,6 @@ }
                 spanProcessors.push(new sdk_trace_base_1.BatchSpanProcessor(exporter, {
-                    maxQueueSize: processor.batch.max_queue_size,
-                    maxExportBatchSize: processor.batch.max_export_batch_size,
-                    scheduledDelayMillis: processor.batch.schedule_delay,
-                    exportTimeoutMillis: processor.batch.export_timeout,
+                    maxQueueSize: processor.batch.max_queue_size ?? undefined,
+                    maxExportBatchSize: processor.batch.max_export_batch_size ?? undefined,
+                    scheduledDelayMillis: processor.batch.schedule_delay ?? undefined,
+                    exportTimeoutMillis: processor.batch.export_timeout ?? undefined,
                 }));
@@ -716,4 +787,5 @@ }
             options: {
-                recordMinMax: aggregation.base2_exponential_bucket_histogram.record_min_max ?? true,
-                maxSize: aggregation.base2_exponential_bucket_histogram.max_size,
+                recordMinMax: aggregation.base2_exponential_bucket_histogram.record_min_max ??
+                    undefined,
+                maxSize: aggregation.base2_exponential_bucket_histogram.max_size ?? undefined,
             },
@@ -732,3 +804,3 @@ };
     }
-    api_1.diag.warn(`Unsupported aggregation type`);
+    api_1.diag.warn('Unsupported aggregation type');
     return undefined;
@@ -821,14 +893,14 @@ }
  */
-function buildSamplerFromConfig(config) {
-    if (config.always_on !== undefined) {
+function buildSamplerFromConfig(samplerConfig) {
+    if (samplerConfig.always_on !== undefined) {
         return new sdk_trace_base_1.AlwaysOnSampler();
     }
-    if (config.always_off !== undefined) {
+    if (samplerConfig.always_off !== undefined) {
         return new sdk_trace_base_1.AlwaysOffSampler();
     }
-    if (config.trace_id_ratio_based !== undefined) {
-        return new sdk_trace_base_1.TraceIdRatioBasedSampler(config.trace_id_ratio_based.ratio ?? DEFAULT_RATIO);
+    if (samplerConfig.trace_id_ratio_based !== undefined) {
+        return new sdk_trace_base_1.TraceIdRatioBasedSampler(samplerConfig.trace_id_ratio_based?.ratio ?? DEFAULT_RATIO);
     }
-    if (config.parent_based !== undefined) {
-        const pb = config.parent_based;
+    if (samplerConfig.parent_based !== undefined) {
+        const pb = samplerConfig.parent_based ?? {};
         return new sdk_trace_base_1.ParentBasedSampler({
@@ -835,0 +907,0 @@ root: pb.root ? buildSamplerFromConfig(pb.root) : new sdk_trace_base_1.AlwaysOnSampler(),

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* Copyright The OpenTelemetry Authors\n * SPDX-License-Identifier: Apache-2.0\n */\n\nimport type { ContextManager, TextMapPropagator } from '@opentelemetry/api';\nimport { context, diag, propagation } from '@opentelemetry/api';\nimport {\n  CompositePropagator,\n  getNumberFromEnv,\n  getStringFromEnv,\n  getStringListFromEnv,\n  W3CBaggagePropagator,\n  W3CTraceContextPropagator,\n} from '@opentelemetry/core';\nimport { OTLPTraceExporter as OTLPProtoTraceExporter } from '@opentelemetry/exporter-trace-otlp-proto';\nimport { OTLPTraceExporter as OTLPHttpTraceExporter } from '@opentelemetry/exporter-trace-otlp-http';\nimport { OTLPTraceExporter as OTLPGrpcTraceExporter } from '@opentelemetry/exporter-trace-otlp-grpc';\nimport { ZipkinExporter } from '@opentelemetry/exporter-zipkin';\nimport type {\n  DetectedResourceAttributes,\n  Resource,\n  ResourceDetector,\n} from '@opentelemetry/resources';\nimport {\n  envDetector,\n  hostDetector,\n  osDetector,\n  processDetector,\n  resourceFromAttributes,\n  serviceInstanceIdDetector,\n} from '@opentelemetry/resources';\nimport type {\n  Sampler,\n  SpanExporter,\n  SpanLimits,\n  SpanProcessor,\n} from '@opentelemetry/sdk-trace-base';\nimport {\n  AlwaysOffSampler,\n  AlwaysOnSampler,\n  BatchSpanProcessor,\n  ConsoleSpanExporter,\n  ParentBasedSampler,\n  SimpleSpanProcessor,\n  TraceIdRatioBasedSampler,\n} from '@opentelemetry/sdk-trace-base';\nimport { B3InjectEncoding, B3Propagator } from '@opentelemetry/propagator-b3';\nimport { JaegerPropagator } from '@opentelemetry/propagator-jaeger';\nimport { AsyncLocalStorageContextManager } from '@opentelemetry/context-async-hooks';\nimport { OTLPLogExporter as OTLPHttpLogExporter } from '@opentelemetry/exporter-logs-otlp-http';\nimport { OTLPLogExporter as OTLPGrpcLogExporter } from '@opentelemetry/exporter-logs-otlp-grpc';\nimport { OTLPLogExporter as OTLPProtoLogExporter } from '@opentelemetry/exporter-logs-otlp-proto';\nimport { CompressionAlgorithm } from '@opentelemetry/otlp-exporter-base';\nimport type {\n  ConfigurationModel,\n  LogRecordExporterConfigModel,\n  InstrumentTypeConfigModel,\n  AggregationConfigModel,\n  PeriodicMetricReaderConfigModel,\n  SpanExporterConfigModel,\n  SamplerConfigModel,\n  NameStringValuePairConfigModel,\n  HttpTlsConfigModel,\n} from '@opentelemetry/configuration';\nimport type {\n  AggregationOption,\n  IAttributesProcessor,\n  IMetricReader,\n  PushMetricExporter,\n  ViewOptions,\n} from '@opentelemetry/sdk-metrics';\nimport {\n  AggregationType,\n  ConsoleMetricExporter,\n  createAllowListAttributesProcessor,\n  createDenyListAttributesProcessor,\n  InstrumentType,\n  PeriodicExportingMetricReader,\n} from '@opentelemetry/sdk-metrics';\nimport { OTLPMetricExporter as OTLPGrpcMetricExporter } from '@opentelemetry/exporter-metrics-otlp-grpc';\nimport { OTLPMetricExporter as OTLPHttpMetricExporter } from '@opentelemetry/exporter-metrics-otlp-http';\nimport { OTLPMetricExporter as OTLPProtoMetricExporter } from '@opentelemetry/exporter-metrics-otlp-proto';\nimport type {\n  BufferConfig,\n  LogRecordExporter,\n  LoggerProviderOptions,\n  LogRecordProcessor,\n} from '@opentelemetry/sdk-logs';\nimport {\n  BatchLogRecordProcessor,\n  ConsoleLogRecordExporter,\n  SimpleLogRecordProcessor,\n} from '@opentelemetry/sdk-logs';\nimport * as fs from 'fs';\n\nconst RESOURCE_DETECTOR_ENVIRONMENT = 'env';\nconst RESOURCE_DETECTOR_HOST = 'host';\nconst RESOURCE_DETECTOR_OS = 'os';\nconst RESOURCE_DETECTOR_PROCESS = 'process';\nconst RESOURCE_DETECTOR_SERVICE_INSTANCE_ID = 'serviceinstance';\n\nexport function getResourceFromConfiguration(\n  config: ConfigurationModel\n): Resource | undefined {\n  if (config.resource && config.resource.attributes) {\n    const attr: DetectedResourceAttributes = {};\n    for (let i = 0; i < config.resource.attributes.length; i++) {\n      const a = config.resource.attributes[i];\n      attr[a.name] = a.value;\n    }\n    return resourceFromAttributes(attr, {\n      schemaUrl: config.resource.schema_url,\n    });\n  }\n  return undefined;\n}\n\nexport function getResourceDetectorsFromEnv(): Array<ResourceDetector> {\n  // When updating this list, make sure to also update the section `resourceDetectors` on README.\n  const resourceDetectors = new Map<string, ResourceDetector>([\n    [RESOURCE_DETECTOR_HOST, hostDetector],\n    [RESOURCE_DETECTOR_OS, osDetector],\n    [RESOURCE_DETECTOR_SERVICE_INSTANCE_ID, serviceInstanceIdDetector],\n    [RESOURCE_DETECTOR_PROCESS, processDetector],\n    [RESOURCE_DETECTOR_ENVIRONMENT, envDetector],\n  ]);\n\n  const resourceDetectorsFromEnv = getStringListFromEnv(\n    'OTEL_NODE_RESOURCE_DETECTORS'\n  ) ?? ['all'];\n\n  if (resourceDetectorsFromEnv.includes('all')) {\n    return [...resourceDetectors.values()].flat();\n  }\n\n  if (resourceDetectorsFromEnv.includes('none')) {\n    return [];\n  }\n\n  return resourceDetectorsFromEnv.flatMap(detector => {\n    const resourceDetector = resourceDetectors.get(detector);\n    if (!resourceDetector) {\n      diag.warn(\n        `Invalid resource detector \"${detector}\" specified in the environment variable OTEL_NODE_RESOURCE_DETECTORS`\n      );\n    }\n    return resourceDetector || [];\n  });\n}\n\nexport function getResourceDetectorsFromConfiguration(\n  config: ConfigurationModel\n): Array<ResourceDetector> {\n  const detectors = config.resource?.['detection/development']?.detectors ?? [];\n\n  return detectors.flatMap(detector => {\n    const result: ResourceDetector[] = [];\n    if (detector.host != null) result.push(hostDetector);\n    if (detector.os != null) result.push(osDetector);\n    if (detector.process != null) result.push(processDetector);\n    if (detector.service != null) result.push(serviceInstanceIdDetector);\n    if (detector.env != null) result.push(envDetector);\n    return result;\n  });\n}\n\nexport function getOtlpProtocolFromEnv(): string {\n  return (\n    getStringFromEnv('OTEL_EXPORTER_OTLP_TRACES_PROTOCOL') ??\n    getStringFromEnv('OTEL_EXPORTER_OTLP_PROTOCOL') ??\n    'http/protobuf'\n  );\n}\n\nfunction getOtlpExporterFromEnv(): SpanExporter {\n  const protocol = getOtlpProtocolFromEnv();\n\n  switch (protocol) {\n    case 'grpc':\n      return new OTLPGrpcTraceExporter();\n    case 'http/json':\n      return new OTLPHttpTraceExporter();\n    case 'http/protobuf':\n      return new OTLPProtoTraceExporter();\n    default:\n      diag.warn(\n        `Unsupported OTLP traces protocol: ${protocol}. Using http/protobuf.`\n      );\n      return new OTLPProtoTraceExporter();\n  }\n}\n\nexport function getSpanProcessorsFromEnv(): SpanProcessor[] {\n  const exportersMap = new Map<string, () => SpanExporter>([\n    ['otlp', () => getOtlpExporterFromEnv()],\n    ['zipkin', () => new ZipkinExporter()],\n    ['console', () => new ConsoleSpanExporter()],\n  ]);\n  const exporters: SpanExporter[] = [];\n  const processors: SpanProcessor[] = [];\n  let traceExportersList = Array.from(\n    new Set(getStringListFromEnv('OTEL_TRACES_EXPORTER'))\n  ).filter(s => s !== 'null');\n\n  if (traceExportersList[0] === 'none') {\n    diag.warn(\n      'OTEL_TRACES_EXPORTER contains \"none\". SDK will not be initialized.'\n    );\n    return [];\n  }\n\n  if (traceExportersList.length === 0) {\n    diag.debug('OTEL_TRACES_EXPORTER is empty. Using default otlp exporter.');\n    traceExportersList = ['otlp'];\n  } else if (\n    traceExportersList.length > 1 &&\n    traceExportersList.includes('none')\n  ) {\n    diag.warn(\n      'OTEL_TRACES_EXPORTER contains \"none\" along with other exporters. Using default otlp exporter.'\n    );\n    traceExportersList = ['otlp'];\n  }\n\n  for (const name of traceExportersList) {\n    const exporter = exportersMap.get(name)?.();\n    if (exporter) {\n      exporters.push(exporter);\n    } else {\n      diag.warn(`Unrecognized OTEL_TRACES_EXPORTER value: ${name}.`);\n    }\n  }\n\n  for (const exp of exporters) {\n    if (exp instanceof ConsoleSpanExporter) {\n      processors.push(new SimpleSpanProcessor(exp));\n    } else {\n      processors.push(new BatchSpanProcessor(exp));\n    }\n  }\n\n  if (exporters.length === 0) {\n    diag.warn(\n      'Unable to set up trace exporter(s) due to invalid exporter and/or protocol values.'\n    );\n  }\n\n  return processors;\n}\n\n/**\n * Get a propagator as defined by environment variables\n */\nexport function getPropagatorFromEnv(): TextMapPropagator | null | undefined {\n  // Empty and undefined MUST be treated equal.\n  const propagatorsEnvVarValue = getStringListFromEnv('OTEL_PROPAGATORS');\n  if (propagatorsEnvVarValue == null) {\n    // return undefined to fall back to default\n    return undefined;\n  }\n\n  if (propagatorsEnvVarValue.includes('none')) {\n    return null;\n  }\n\n  // Implementation note: this only contains specification required propagators that are actually hosted in this repo.\n  // Any other propagators (like aws, aws-lambda, should go into `@opentelemetry/auto-configuration-propagators` instead).\n  const propagatorsFactory = new Map<string, () => TextMapPropagator>([\n    ['tracecontext', () => new W3CTraceContextPropagator()],\n    ['baggage', () => new W3CBaggagePropagator()],\n    ['b3', () => new B3Propagator()],\n    [\n      'b3multi',\n      () => new B3Propagator({ injectEncoding: B3InjectEncoding.MULTI_HEADER }),\n    ],\n    ['jaeger', () => new JaegerPropagator()],\n  ]);\n\n  // Values MUST be deduplicated in order to register a Propagator only once.\n  const uniquePropagatorNames = Array.from(new Set(propagatorsEnvVarValue));\n  const validPropagators: TextMapPropagator[] = [];\n\n  uniquePropagatorNames.forEach(name => {\n    const propagator = propagatorsFactory.get(name)?.();\n    if (!propagator) {\n      diag.warn(\n        `Propagator \"${name}\" requested through environment variable is unavailable.`\n      );\n      return;\n    }\n\n    validPropagators.push(propagator);\n  });\n\n  if (validPropagators.length === 0) {\n    // null to signal that the default should **not** be used in its place.\n    return null;\n  } else if (uniquePropagatorNames.length === 1) {\n    return validPropagators[0];\n  } else {\n    return new CompositePropagator({\n      propagators: validPropagators,\n    });\n  }\n}\n\n/**\n * Get a propagator as defined by configuration model from configuration\n */\nexport function getPropagatorFromConfiguration(\n  config: ConfigurationModel\n): TextMapPropagator | null | undefined {\n  const propagatorsValue = getKeyListFromObjectArray(\n    config.propagator?.composite\n  );\n  if (propagatorsValue == null) {\n    // return undefined to fall back to default\n    return undefined;\n  }\n\n  if (propagatorsValue.includes('none')) {\n    return null;\n  }\n\n  // Implementation note: this only contains specification required propagators that are actually hosted in this repo.\n  // Any other propagators (like aws, aws-lambda, should go into `@opentelemetry/auto-configuration-propagators` instead).\n  const propagatorsFactory = new Map<string, () => TextMapPropagator>([\n    ['tracecontext', () => new W3CTraceContextPropagator()],\n    ['baggage', () => new W3CBaggagePropagator()],\n    ['b3', () => new B3Propagator()],\n    [\n      'b3multi',\n      () => new B3Propagator({ injectEncoding: B3InjectEncoding.MULTI_HEADER }),\n    ],\n    ['jaeger', () => new JaegerPropagator()],\n  ]);\n\n  // Values MUST be deduplicated in order to register a Propagator only once.\n  const uniquePropagatorNames = Array.from(new Set(propagatorsValue));\n  const validPropagators: TextMapPropagator[] = [];\n\n  uniquePropagatorNames.forEach(name => {\n    const propagator = propagatorsFactory.get(name)?.();\n    if (!propagator) {\n      diag.warn(\n        `Propagator \"${name}\" requested through configuration is unavailable.`\n      );\n      return;\n    }\n\n    validPropagators.push(propagator);\n  });\n\n  if (validPropagators.length === 0) {\n    // null to signal that the default should **not** be used in its place.\n    return null;\n  } else if (uniquePropagatorNames.length === 1) {\n    return validPropagators[0];\n  } else {\n    return new CompositePropagator({\n      propagators: validPropagators,\n    });\n  }\n}\n\nexport function setupContextManager(\n  contextManager: ContextManager | null | undefined\n) {\n  // null means 'do not register'\n  if (contextManager === null) {\n    return;\n  }\n\n  // undefined means 'register default'\n  if (contextManager === undefined) {\n    const defaultContextManager = new AsyncLocalStorageContextManager();\n    defaultContextManager.enable();\n    context.setGlobalContextManager(defaultContextManager);\n    return;\n  }\n\n  contextManager.enable();\n  context.setGlobalContextManager(contextManager);\n}\n\nexport function setupPropagator(\n  propagator: TextMapPropagator | null | undefined\n) {\n  // null means 'do not register'\n  if (propagator === null) {\n    return;\n  }\n\n  // undefined means 'register default'\n  if (propagator === undefined) {\n    propagation.setGlobalPropagator(\n      new CompositePropagator({\n        propagators: [\n          new W3CTraceContextPropagator(),\n          new W3CBaggagePropagator(),\n        ],\n      })\n    );\n    return;\n  }\n\n  propagation.setGlobalPropagator(propagator);\n}\n\nexport function getKeyListFromObjectArray(\n  obj: object[] | undefined\n): string[] | undefined {\n  if (!obj || obj.length === 0) {\n    return undefined;\n  }\n\n  const keys: string[] = [];\n  for (const item of obj) {\n    for (const key of Object.keys(item)) {\n      keys.push(key);\n    }\n  }\n  return keys;\n}\n\nexport function getNonNegativeNumberFromEnv(\n  envVarName: string\n): number | undefined {\n  const value = getNumberFromEnv(envVarName);\n  if (value != null && value <= 0) {\n    diag.warn(\n      `${envVarName} (${value}) is invalid, expected number greater than 0, using default.`\n    );\n    return undefined;\n  }\n  return value;\n}\n\nexport function getPeriodicExportingMetricReaderFromEnv(\n  exporter: PushMetricExporter\n): IMetricReader {\n  const defaultTimeoutMillis = 30_000;\n  const defaultIntervalMillis = 60_000;\n\n  const rawExportIntervalMillis = getNonNegativeNumberFromEnv(\n    'OTEL_METRIC_EXPORT_INTERVAL'\n  );\n  const rawExportTimeoutMillis = getNonNegativeNumberFromEnv(\n    'OTEL_METRIC_EXPORT_TIMEOUT'\n  );\n\n  // Apply defaults\n  const exportIntervalMillis = rawExportIntervalMillis ?? defaultIntervalMillis;\n  let exportTimeoutMillis = rawExportTimeoutMillis ?? defaultTimeoutMillis;\n\n  // Ensure timeout doesn't exceed interval\n  if (exportTimeoutMillis > exportIntervalMillis) {\n    // determine which env vars were set and which ones defaulted for logging purposes\n    const timeoutSource =\n      rawExportTimeoutMillis != null\n        ? rawExportTimeoutMillis.toString()\n        : `${defaultTimeoutMillis}, default`;\n    const intervalSource =\n      rawExportIntervalMillis != null\n        ? rawExportIntervalMillis.toString()\n        : `${defaultIntervalMillis}, default`;\n\n    const bothSetByUser =\n      rawExportTimeoutMillis != null && rawExportIntervalMillis != null;\n    const logMessage = `OTEL_METRIC_EXPORT_TIMEOUT (${timeoutSource}) is greater than OTEL_METRIC_EXPORT_INTERVAL (${intervalSource}). Clamping timeout to interval value.`;\n\n    // only bother users if they explicitly set both values.\n    if (bothSetByUser) {\n      diag.warn(logMessage);\n    } else {\n      diag.info(logMessage);\n    }\n\n    exportTimeoutMillis = exportIntervalMillis;\n  }\n\n  return new PeriodicExportingMetricReader({\n    exportTimeoutMillis,\n    exportIntervalMillis,\n    exporter,\n  });\n}\n\nexport function getOtlpMetricExporterFromEnv(): PushMetricExporter {\n  const protocol =\n    (\n      getStringFromEnv('OTEL_EXPORTER_OTLP_METRICS_PROTOCOL') ??\n      getStringFromEnv('OTEL_EXPORTER_OTLP_PROTOCOL')\n    )?.trim() || 'http/protobuf'; // Using || to also fall back on empty string\n\n  switch (protocol) {\n    case 'grpc':\n      return new OTLPGrpcMetricExporter();\n    case 'http/json':\n      return new OTLPHttpMetricExporter();\n    case 'http/protobuf':\n      return new OTLPProtoMetricExporter();\n  }\n\n  diag.warn(\n    `Unsupported OTLP metrics protocol: \"${protocol}\". Using http/protobuf.`\n  );\n  return new OTLPProtoMetricExporter();\n}\n\nexport function getPeriodicMetricReaderFromConfiguration(\n  periodic: PeriodicMetricReaderConfigModel\n): IMetricReader | undefined {\n  if (periodic.exporter) {\n    let exporter;\n    if (periodic.exporter.otlp_http) {\n      const encoding = periodic.exporter.otlp_http.encoding;\n      if (encoding === 'json') {\n        exporter = new OTLPHttpMetricExporter({\n          compression:\n            periodic.exporter.otlp_http.compression === 'gzip'\n              ? CompressionAlgorithm.GZIP\n              : CompressionAlgorithm.NONE,\n        });\n      } else if (encoding === 'protobuf') {\n        exporter = new OTLPProtoMetricExporter({\n          compression:\n            periodic.exporter.otlp_http.compression === 'gzip'\n              ? CompressionAlgorithm.GZIP\n              : CompressionAlgorithm.NONE,\n        });\n      } else {\n        diag.warn(`Unsupported OTLP metrics encoding: ${encoding}.`);\n      }\n    }\n    if (periodic.exporter.otlp_grpc) {\n      exporter = new OTLPGrpcMetricExporter({\n        compression:\n          periodic.exporter.otlp_grpc.compression === 'gzip'\n            ? CompressionAlgorithm.GZIP\n            : CompressionAlgorithm.NONE,\n      });\n    }\n\n    if (exporter) {\n      // TODO(6425): add cardinality_limits\n      return new PeriodicExportingMetricReader({\n        exportIntervalMillis: periodic.interval ?? 60_000,\n        exportTimeoutMillis: periodic.timeout ?? 30_000,\n        exporter,\n      });\n    }\n    if (periodic.exporter.console) {\n      return new PeriodicExportingMetricReader({\n        exporter: new ConsoleMetricExporter(),\n      });\n    }\n  }\n  diag.warn(`Unsupported Metric Exporter.`);\n  return undefined;\n}\n\n/**\n * Get LoggerProviderConfig from environment variables.\n */\nexport function getLoggerProviderConfigFromEnv(): LoggerProviderOptions {\n  return {\n    logRecordLimits: {\n      attributeCountLimit:\n        getNonNegativeNumberFromEnv('OTEL_LOGRECORD_ATTRIBUTE_COUNT_LIMIT') ??\n        getNonNegativeNumberFromEnv('OTEL_ATTRIBUTE_COUNT_LIMIT'),\n      attributeValueLengthLimit:\n        getNonNegativeNumberFromEnv(\n          'OTEL_LOGRECORD_ATTRIBUTE_VALUE_LENGTH_LIMIT'\n        ) ?? getNonNegativeNumberFromEnv('OTEL_ATTRIBUTE_VALUE_LENGTH_LIMIT'),\n    },\n  };\n}\n\n/**\n * Get configuration for BatchLogRecordProcessor from environment variables.\n */\nexport function getBatchLogRecordProcessorConfigFromEnv(): BufferConfig {\n  return {\n    maxQueueSize: getNonNegativeNumberFromEnv('OTEL_BLRP_MAX_QUEUE_SIZE'),\n    scheduledDelayMillis: getNonNegativeNumberFromEnv(\n      'OTEL_BLRP_SCHEDULE_DELAY'\n    ),\n    exportTimeoutMillis: getNonNegativeNumberFromEnv(\n      'OTEL_BLRP_EXPORT_TIMEOUT'\n    ),\n    maxExportBatchSize: getNonNegativeNumberFromEnv(\n      'OTEL_BLRP_MAX_EXPORT_BATCH_SIZE'\n    ),\n  };\n}\n\nexport function getBatchLogRecordProcessorFromEnv(\n  exporter: LogRecordExporter\n): BatchLogRecordProcessor {\n  return new BatchLogRecordProcessor(\n    exporter,\n    getBatchLogRecordProcessorConfigFromEnv()\n  );\n}\n\nexport function getLogRecordExporter(\n  exporter: LogRecordExporterConfigModel\n): LogRecordExporter | undefined {\n  if (exporter.otlp_http) {\n    const encoding = exporter.otlp_http.encoding;\n    if (encoding === 'json') {\n      return new OTLPHttpLogExporter({\n        compression:\n          exporter.otlp_http.compression === 'gzip'\n            ? CompressionAlgorithm.GZIP\n            : CompressionAlgorithm.NONE,\n      });\n    }\n    if (encoding === 'protobuf') {\n      return new OTLPProtoLogExporter({\n        compression:\n          exporter.otlp_http.compression === 'gzip'\n            ? CompressionAlgorithm.GZIP\n            : CompressionAlgorithm.NONE,\n      });\n    }\n    diag.warn(\n      `Unsupported OTLP logs encoding: ${encoding}. Using http/protobuf.`\n    );\n    return new OTLPProtoLogExporter({\n      compression:\n        exporter.otlp_http.compression === 'gzip'\n          ? CompressionAlgorithm.GZIP\n          : CompressionAlgorithm.NONE,\n    });\n  } else if (exporter.otlp_grpc) {\n    return new OTLPGrpcLogExporter({\n      compression:\n        exporter.otlp_grpc.compression === 'gzip'\n          ? CompressionAlgorithm.GZIP\n          : CompressionAlgorithm.NONE,\n    });\n  } else if (exporter.console) {\n    return new ConsoleLogRecordExporter();\n  }\n  diag.warn(`Unsupported Exporter value. No Log Record Exporter registered`);\n  return undefined;\n}\n\nexport function getLogRecordProcessorsFromConfiguration(\n  config: ConfigurationModel\n): LogRecordProcessor[] | undefined {\n  const logRecordProcessors: LogRecordProcessor[] = [];\n  config.logger_provider?.processors?.forEach(processor => {\n    if (processor.batch) {\n      const exporter = getLogRecordExporter(processor.batch.exporter);\n      if (exporter) {\n        logRecordProcessors.push(\n          new BatchLogRecordProcessor(exporter, {\n            maxQueueSize: processor.batch.max_queue_size,\n            maxExportBatchSize: processor.batch.max_export_batch_size,\n            scheduledDelayMillis: processor.batch.schedule_delay,\n            exportTimeoutMillis: processor.batch.export_timeout,\n          })\n        );\n      }\n    }\n    if (processor.simple) {\n      const exporter = getLogRecordExporter(processor.simple.exporter);\n      if (exporter) {\n        logRecordProcessors.push(new SimpleLogRecordProcessor(exporter));\n      }\n    }\n  });\n  if (logRecordProcessors.length > 0) {\n    return logRecordProcessors;\n  }\n  return undefined;\n}\n\nexport function getHeadersFromConfiguration(\n  headers: NameStringValuePairConfigModel[] | undefined\n): Record<string, string> | undefined {\n  if (!headers) {\n    return undefined;\n  }\n  const result: Record<string, string> = {};\n  headers.forEach(header => {\n    result[header.name] = header.value;\n  });\n  return result;\n}\n\nexport function getHttpAgentOptionsFromTls(\n  tls: HttpTlsConfigModel | undefined\n): { ca?: Buffer; cert?: Buffer; key?: Buffer } | undefined {\n  if (tls && (tls.ca_file || tls.cert_file || tls.key_file)) {\n    const httpsAgentOptions: { ca?: Buffer; cert?: Buffer; key?: Buffer } = {};\n    if (tls.ca_file) {\n      try {\n        httpsAgentOptions.ca = fs.readFileSync(tls.ca_file);\n      } catch (e) {\n        diag.warn(`Failed to read TLS CA file at ${tls.ca_file}: ${e}`);\n      }\n    }\n    if (tls.cert_file) {\n      try {\n        httpsAgentOptions.cert = fs.readFileSync(tls.cert_file);\n      } catch (e) {\n        diag.warn(`Failed to read TLS cert file at ${tls.cert_file}: ${e}`);\n      }\n    }\n    if (tls.key_file) {\n      try {\n        httpsAgentOptions.key = fs.readFileSync(tls.key_file);\n      } catch (e) {\n        diag.warn(`Failed to read TLS key file at ${tls.key_file}: ${e}`);\n      }\n    }\n    return httpsAgentOptions;\n  }\n  return undefined;\n}\n\nexport function getSpanExporter(\n  exporter: SpanExporterConfigModel\n): SpanExporter | undefined {\n  if (exporter.otlp_http) {\n    const encoding = exporter.otlp_http.encoding;\n    if (encoding === 'json') {\n      return new OTLPHttpTraceExporter({\n        compression:\n          exporter.otlp_http.compression === 'gzip'\n            ? CompressionAlgorithm.GZIP\n            : CompressionAlgorithm.NONE,\n        url: exporter.otlp_http.endpoint,\n        headers: getHeadersFromConfiguration(exporter.otlp_http.headers),\n        timeoutMillis: exporter.otlp_http.timeout,\n        httpAgentOptions: getHttpAgentOptionsFromTls(exporter.otlp_http.tls),\n      });\n    } else {\n      return new OTLPProtoTraceExporter({\n        compression:\n          exporter.otlp_http.compression === 'gzip'\n            ? CompressionAlgorithm.GZIP\n            : CompressionAlgorithm.NONE,\n        url: exporter.otlp_http.endpoint,\n        headers: getHeadersFromConfiguration(exporter.otlp_http.headers),\n        timeoutMillis: exporter.otlp_http.timeout,\n        httpAgentOptions: getHttpAgentOptionsFromTls(exporter.otlp_http.tls),\n      });\n    }\n  } else if (exporter.otlp_grpc) {\n    return new OTLPGrpcTraceExporter({\n      compression:\n        exporter.otlp_grpc.compression === 'gzip'\n          ? CompressionAlgorithm.GZIP\n          : CompressionAlgorithm.NONE,\n      url: exporter.otlp_grpc.endpoint,\n      timeoutMillis: exporter.otlp_grpc.timeout,\n      // TODO (6614): add support for credentials\n      // TODO (6615): add metadata (headers) support\n    });\n  } else if (exporter.console) {\n    return new ConsoleSpanExporter();\n  }\n  diag.warn(`Unsupported Exporter value. No Span Exporter registered`);\n  return undefined;\n}\n\nexport function getSpanProcessorsFromConfiguration(\n  config: ConfigurationModel\n): SpanProcessor[] | undefined {\n  const spanProcessors: SpanProcessor[] = [];\n  config.tracer_provider?.processors?.forEach(processor => {\n    if (processor.batch) {\n      const exporter = getSpanExporter(processor.batch.exporter);\n      if (exporter) {\n        spanProcessors.push(\n          new BatchSpanProcessor(exporter, {\n            maxQueueSize: processor.batch.max_queue_size,\n            maxExportBatchSize: processor.batch.max_export_batch_size,\n            scheduledDelayMillis: processor.batch.schedule_delay,\n            exportTimeoutMillis: processor.batch.export_timeout,\n          })\n        );\n      }\n    }\n    if (processor.simple) {\n      const exporter = getSpanExporter(processor.simple.exporter);\n      if (exporter) {\n        spanProcessors.push(new SimpleSpanProcessor(exporter));\n      }\n    }\n  });\n  if (spanProcessors.length > 0) {\n    return spanProcessors;\n  }\n  return undefined;\n}\n\nexport function getSpanLimitsFromConfiguration(\n  config: ConfigurationModel\n): SpanLimits | undefined {\n  if (config.tracer_provider?.limits) {\n    const limitsConfig = config.tracer_provider.limits;\n    const spanLimits: SpanLimits = {};\n    spanLimits.attributeCountLimit = limitsConfig.attribute_count_limit ?? 128;\n    spanLimits.eventCountLimit = limitsConfig.event_count_limit ?? 128;\n    spanLimits.linkCountLimit = limitsConfig.link_count_limit ?? 128;\n    spanLimits.attributePerLinkCountLimit =\n      limitsConfig.link_attribute_count_limit ?? 128;\n    spanLimits.attributePerEventCountLimit =\n      limitsConfig.event_attribute_count_limit ?? 128;\n\n    if (limitsConfig.attribute_value_length_limit != null) {\n      spanLimits.attributeValueLengthLimit =\n        limitsConfig.attribute_value_length_limit;\n    }\n\n    return spanLimits;\n  }\n  return undefined;\n}\n\nexport function getMeterReadersFromConfiguration(\n  config: ConfigurationModel\n): IMetricReader[] | undefined {\n  const metricReaders: IMetricReader[] = [];\n  config.meter_provider?.readers?.forEach(reader => {\n    if (reader.periodic) {\n      const periodicReader = getPeriodicMetricReaderFromConfiguration(\n        reader.periodic\n      );\n      if (periodicReader) {\n        metricReaders.push(periodicReader);\n      }\n    }\n  });\n  if (metricReaders.length > 0) {\n    return metricReaders;\n  }\n  return undefined;\n}\n\nexport function getInstrumentType(\n  instrument: InstrumentTypeConfigModel\n): InstrumentType | undefined {\n  switch (instrument) {\n    case 'counter':\n      return InstrumentType.COUNTER;\n    case 'gauge':\n      return InstrumentType.GAUGE;\n    case 'histogram':\n      return InstrumentType.HISTOGRAM;\n    case 'observable_counter':\n      return InstrumentType.OBSERVABLE_COUNTER;\n    case 'observable_gauge':\n      return InstrumentType.OBSERVABLE_GAUGE;\n    case 'observable_up_down_counter':\n      return InstrumentType.OBSERVABLE_UP_DOWN_COUNTER;\n    case 'up_down_counter':\n      return InstrumentType.UP_DOWN_COUNTER;\n    default:\n      diag.warn(`Unsupported instrument type: ${instrument}`);\n      return undefined;\n  }\n}\n\nexport function getAggregationType(\n  aggregation: AggregationConfigModel\n): AggregationOption | undefined {\n  if (aggregation.default) {\n    return {\n      type: AggregationType.DEFAULT,\n    };\n  }\n  if (aggregation.drop) {\n    return {\n      type: AggregationType.DROP,\n    };\n  }\n  if (aggregation.explicit_bucket_histogram) {\n    return {\n      type: AggregationType.EXPLICIT_BUCKET_HISTOGRAM,\n      options: {\n        recordMinMax:\n          aggregation.explicit_bucket_histogram.record_min_max ?? true,\n        boundaries: aggregation.explicit_bucket_histogram.boundaries ?? [\n          0, 5, 10, 25, 50, 75, 100, 250, 500, 750, 1000, 2500, 5000, 7500,\n          10000,\n        ],\n      },\n    };\n  }\n\n  if (aggregation.base2_exponential_bucket_histogram) {\n    return {\n      type: AggregationType.EXPONENTIAL_HISTOGRAM,\n      options: {\n        recordMinMax:\n          aggregation.base2_exponential_bucket_histogram.record_min_max ?? true,\n        maxSize: aggregation.base2_exponential_bucket_histogram.max_size,\n      },\n    };\n  }\n  if (aggregation.last_value) {\n    return {\n      type: AggregationType.LAST_VALUE,\n    };\n  }\n  if (aggregation.sum) {\n    return {\n      type: AggregationType.SUM,\n    };\n  }\n\n  diag.warn(`Unsupported aggregation type`);\n  return undefined;\n}\n\nexport function getMeterViewsFromConfiguration(\n  config: ConfigurationModel\n): ViewOptions[] | undefined {\n  const metricViews: ViewOptions[] = [];\n  config.meter_provider?.views?.forEach(view => {\n    const viewOption: ViewOptions = {};\n    if (view.selector) {\n      if (view.selector.instrument_name) {\n        viewOption.instrumentName = view.selector.instrument_name;\n      }\n      if (view.selector.instrument_type) {\n        const instrumentType = getInstrumentType(view.selector.instrument_type);\n        if (instrumentType) {\n          viewOption.instrumentType = instrumentType;\n        }\n      }\n      if (view.selector.unit) {\n        viewOption.instrumentUnit = view.selector.unit;\n      }\n      if (view.selector.meter_name) {\n        viewOption.meterName = view.selector.meter_name;\n      }\n      if (view.selector.meter_version) {\n        viewOption.meterVersion = view.selector.meter_version;\n      }\n      if (view.selector.meter_schema_url) {\n        viewOption.meterSchemaUrl = view.selector.meter_schema_url;\n      }\n    }\n    if (view.stream) {\n      if (view.stream.name) {\n        viewOption.name = view.stream.name;\n      }\n      viewOption.aggregationCardinalityLimit =\n        view.stream.aggregation_cardinality_limit ?? 2_000;\n      if (view.stream.description) {\n        viewOption.description = view.stream.description;\n      }\n      if (view.stream.aggregation) {\n        const aggregationType = getAggregationType(view.stream.aggregation);\n        if (aggregationType) {\n          viewOption.aggregation = aggregationType;\n        }\n      }\n      if (view.stream.attribute_keys) {\n        const processors: IAttributesProcessor[] = [];\n        if (\n          view.stream.attribute_keys.included &&\n          view.stream.attribute_keys.included.length > 0\n        ) {\n          processors.push(\n            createAllowListAttributesProcessor(\n              view.stream.attribute_keys.included\n            )\n          );\n        }\n        if (\n          view.stream.attribute_keys.excluded &&\n          view.stream.attribute_keys.excluded.length > 0\n        ) {\n          processors.push(\n            createDenyListAttributesProcessor(\n              view.stream.attribute_keys.excluded\n            )\n          );\n        }\n        if (processors.length > 0) {\n          viewOption.attributesProcessors = processors;\n        }\n      }\n    }\n\n    if (Object.keys(viewOption).length > 0) {\n      metricViews.push(viewOption);\n    }\n  });\n  if (metricViews.length > 0) {\n    return metricViews;\n  }\n  return undefined;\n}\n\nexport function getInstanceID(config: ConfigurationModel): string | undefined {\n  if (config.resource?.attributes) {\n    for (let i = 0; i < config.resource.attributes.length; i++) {\n      const element = config.resource.attributes[i];\n      if (element.name === 'service.instance.id') {\n        return element.value?.toString();\n      }\n    }\n  }\n  return undefined;\n}\n\nconst DEFAULT_RATIO = 1;\n\n/**\n * Builds a {@link Sampler} from a {@link SamplerConfigModel} data model.\n * This allows sampler construction from declarative configuration.\n */\nexport function buildSamplerFromConfig(config: SamplerConfigModel): Sampler {\n  if (config.always_on !== undefined) {\n    return new AlwaysOnSampler();\n  }\n  if (config.always_off !== undefined) {\n    return new AlwaysOffSampler();\n  }\n  if (config.trace_id_ratio_based !== undefined) {\n    return new TraceIdRatioBasedSampler(\n      config.trace_id_ratio_based.ratio ?? DEFAULT_RATIO\n    );\n  }\n  if (config.parent_based !== undefined) {\n    const pb = config.parent_based;\n    return new ParentBasedSampler({\n      root: pb.root ? buildSamplerFromConfig(pb.root) : new AlwaysOnSampler(),\n      remoteParentSampled: pb.remote_parent_sampled\n        ? buildSamplerFromConfig(pb.remote_parent_sampled)\n        : undefined,\n      remoteParentNotSampled: pb.remote_parent_not_sampled\n        ? buildSamplerFromConfig(pb.remote_parent_not_sampled)\n        : undefined,\n      localParentSampled: pb.local_parent_sampled\n        ? buildSamplerFromConfig(pb.local_parent_sampled)\n        : undefined,\n      localParentNotSampled: pb.local_parent_not_sampled\n        ? buildSamplerFromConfig(pb.local_parent_not_sampled)\n        : undefined,\n    });\n  }\n  diag.error('Unknown sampler config, defaulting to ParentBased(AlwaysOn).');\n  return new ParentBasedSampler({ root: new AlwaysOnSampler() });\n}\n"]}
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* Copyright The OpenTelemetry Authors\n * SPDX-License-Identifier: Apache-2.0\n */\n\nimport type { ContextManager, TextMapPropagator } from '@opentelemetry/api';\nimport { context, diag, propagation } from '@opentelemetry/api';\nimport {\n  CompositePropagator,\n  getNumberFromEnv,\n  getStringFromEnv,\n  getStringListFromEnv,\n  W3CBaggagePropagator,\n  W3CTraceContextPropagator,\n} from '@opentelemetry/core';\nimport { OTLPTraceExporter as OTLPProtoTraceExporter } from '@opentelemetry/exporter-trace-otlp-proto';\nimport { OTLPTraceExporter as OTLPHttpTraceExporter } from '@opentelemetry/exporter-trace-otlp-http';\nimport { OTLPTraceExporter as OTLPGrpcTraceExporter } from '@opentelemetry/exporter-trace-otlp-grpc';\nimport { ZipkinExporter } from '@opentelemetry/exporter-zipkin';\nimport type {\n  DetectedResourceAttributes,\n  Resource,\n  ResourceDetector,\n} from '@opentelemetry/resources';\nimport {\n  envDetector,\n  hostDetector,\n  osDetector,\n  processDetector,\n  resourceFromAttributes,\n  serviceInstanceIdDetector,\n} from '@opentelemetry/resources';\nimport type {\n  Sampler,\n  SpanExporter,\n  SpanLimits,\n  SpanProcessor,\n} from '@opentelemetry/sdk-trace-base';\nimport {\n  AlwaysOffSampler,\n  AlwaysOnSampler,\n  BatchSpanProcessor,\n  ConsoleSpanExporter,\n  ParentBasedSampler,\n  SimpleSpanProcessor,\n  TraceIdRatioBasedSampler,\n} from '@opentelemetry/sdk-trace-base';\nimport { B3InjectEncoding, B3Propagator } from '@opentelemetry/propagator-b3';\nimport { JaegerPropagator } from '@opentelemetry/propagator-jaeger';\nimport { AsyncLocalStorageContextManager } from '@opentelemetry/context-async-hooks';\nimport { OTLPLogExporter as OTLPHttpLogExporter } from '@opentelemetry/exporter-logs-otlp-http';\nimport { OTLPLogExporter as OTLPGrpcLogExporter } from '@opentelemetry/exporter-logs-otlp-grpc';\nimport { OTLPLogExporter as OTLPProtoLogExporter } from '@opentelemetry/exporter-logs-otlp-proto';\nimport { CompressionAlgorithm } from '@opentelemetry/otlp-exporter-base';\nimport {\n  createEmptyMetadata,\n  createInsecureCredentials,\n  createSslCredentials,\n} from '@opentelemetry/otlp-grpc-exporter-base';\nimport type {\n  ConfigurationModel,\n  LogRecordExporterConfigModel,\n  InstrumentTypeConfigModel,\n  AggregationConfigModel,\n  MetricProducerConfigModel,\n  PeriodicMetricReaderConfigModel,\n  SpanExporterConfigModel,\n  SamplerConfigModel,\n  NameStringValuePairConfigModel,\n  HttpTlsConfigModel,\n  GrpcTlsConfigModel,\n} from '@opentelemetry/configuration';\nimport type {\n  AggregationOption,\n  IAttributesProcessor,\n  IMetricReader,\n  PushMetricExporter,\n  ViewOptions,\n} from '@opentelemetry/sdk-metrics';\nimport {\n  AggregationType,\n  ConsoleMetricExporter,\n  createAllowListAttributesProcessor,\n  createDenyListAttributesProcessor,\n  InstrumentType,\n  PeriodicExportingMetricReader,\n} from '@opentelemetry/sdk-metrics';\nimport { OTLPMetricExporter as OTLPGrpcMetricExporter } from '@opentelemetry/exporter-metrics-otlp-grpc';\nimport { OTLPMetricExporter as OTLPHttpMetricExporter } from '@opentelemetry/exporter-metrics-otlp-http';\nimport { OTLPMetricExporter as OTLPProtoMetricExporter } from '@opentelemetry/exporter-metrics-otlp-proto';\nimport type {\n  BufferConfig,\n  LogRecordExporter,\n  LoggerProviderOptions,\n  LogRecordProcessor,\n} from '@opentelemetry/sdk-logs';\nimport type { MetricProducer } from '@opentelemetry/sdk-metrics';\nimport {\n  BatchLogRecordProcessor,\n  ConsoleLogRecordExporter,\n  SimpleLogRecordProcessor,\n} from '@opentelemetry/sdk-logs';\nimport * as fs from 'fs';\n\nconst RESOURCE_DETECTOR_ENVIRONMENT = 'env';\nconst RESOURCE_DETECTOR_HOST = 'host';\nconst RESOURCE_DETECTOR_OS = 'os';\nconst RESOURCE_DETECTOR_PROCESS = 'process';\nconst RESOURCE_DETECTOR_SERVICE_INSTANCE_ID = 'serviceinstance';\n\nexport function getResourceFromConfiguration(\n  config: ConfigurationModel\n): Resource | undefined {\n  if (config.resource && config.resource.attributes) {\n    const attrs: DetectedResourceAttributes = {};\n    for (let i = 0; i < config.resource.attributes.length; i++) {\n      const a = config.resource.attributes[i];\n      // https://github.com/open-telemetry/opentelemetry-configuration/issues/613\n      // will likely clarify that entries with a `null` value should be ignored.\n      if (a.value !== null) {\n        attrs[a.name] = a.value;\n      }\n    }\n    return resourceFromAttributes(attrs, {\n      schemaUrl: config.resource.schema_url ?? undefined,\n    });\n  }\n  return undefined;\n}\n\nexport function getResourceDetectorsFromEnv(): Array<ResourceDetector> {\n  // When updating this list, make sure to also update the section `resourceDetectors` on README.\n  const resourceDetectors = new Map<string, ResourceDetector>([\n    [RESOURCE_DETECTOR_HOST, hostDetector],\n    [RESOURCE_DETECTOR_OS, osDetector],\n    [RESOURCE_DETECTOR_SERVICE_INSTANCE_ID, serviceInstanceIdDetector],\n    [RESOURCE_DETECTOR_PROCESS, processDetector],\n    [RESOURCE_DETECTOR_ENVIRONMENT, envDetector],\n  ]);\n\n  const resourceDetectorsFromEnv = getStringListFromEnv(\n    'OTEL_NODE_RESOURCE_DETECTORS'\n  ) ?? ['all'];\n\n  if (resourceDetectorsFromEnv.includes('all')) {\n    return [...resourceDetectors.values()].flat();\n  }\n\n  if (resourceDetectorsFromEnv.includes('none')) {\n    return [];\n  }\n\n  return resourceDetectorsFromEnv.flatMap(detector => {\n    const resourceDetector = resourceDetectors.get(detector);\n    if (!resourceDetector) {\n      diag.warn(\n        `Invalid resource detector \"${detector}\" specified in the environment variable OTEL_NODE_RESOURCE_DETECTORS`\n      );\n    }\n    return resourceDetector || [];\n  });\n}\n\nexport function getResourceDetectorsFromConfiguration(\n  config: ConfigurationModel\n): Array<ResourceDetector> {\n  const detectors = config.resource?.['detection/development']?.detectors ?? [];\n\n  return detectors.flatMap(detector => {\n    const result: ResourceDetector[] = [];\n    if (detector.host !== undefined) result.push(hostDetector);\n    if (detector.os !== undefined) result.push(osDetector);\n    if (detector.process !== undefined) result.push(processDetector);\n    if (detector.service !== undefined) result.push(serviceInstanceIdDetector);\n    if (detector.env !== undefined) result.push(envDetector);\n    return result;\n  });\n}\n\nexport function getOtlpProtocolFromEnv(): string {\n  return (\n    getStringFromEnv('OTEL_EXPORTER_OTLP_TRACES_PROTOCOL') ??\n    getStringFromEnv('OTEL_EXPORTER_OTLP_PROTOCOL') ??\n    'http/protobuf'\n  );\n}\n\nfunction getOtlpExporterFromEnv(): SpanExporter {\n  const protocol = getOtlpProtocolFromEnv();\n\n  switch (protocol) {\n    case 'grpc':\n      return new OTLPGrpcTraceExporter();\n    case 'http/json':\n      return new OTLPHttpTraceExporter();\n    case 'http/protobuf':\n      return new OTLPProtoTraceExporter();\n    default:\n      diag.warn(\n        `Unsupported OTLP traces protocol: ${protocol}. Using http/protobuf.`\n      );\n      return new OTLPProtoTraceExporter();\n  }\n}\n\nexport function getSpanProcessorsFromEnv(): SpanProcessor[] {\n  const exportersMap = new Map<string, () => SpanExporter>([\n    ['otlp', () => getOtlpExporterFromEnv()],\n    ['zipkin', () => new ZipkinExporter()],\n    ['console', () => new ConsoleSpanExporter()],\n  ]);\n  const exporters: SpanExporter[] = [];\n  const processors: SpanProcessor[] = [];\n  let traceExportersList = Array.from(\n    new Set(getStringListFromEnv('OTEL_TRACES_EXPORTER'))\n  ).filter(s => s !== 'null');\n\n  if (traceExportersList[0] === 'none') {\n    diag.warn(\n      'OTEL_TRACES_EXPORTER contains \"none\". SDK will not be initialized.'\n    );\n    return [];\n  }\n\n  if (traceExportersList.length === 0) {\n    diag.debug('OTEL_TRACES_EXPORTER is empty. Using default otlp exporter.');\n    traceExportersList = ['otlp'];\n  } else if (\n    traceExportersList.length > 1 &&\n    traceExportersList.includes('none')\n  ) {\n    diag.warn(\n      'OTEL_TRACES_EXPORTER contains \"none\" along with other exporters. Using default otlp exporter.'\n    );\n    traceExportersList = ['otlp'];\n  }\n\n  for (const name of traceExportersList) {\n    const exporter = exportersMap.get(name)?.();\n    if (exporter) {\n      exporters.push(exporter);\n    } else {\n      diag.warn(`Unrecognized OTEL_TRACES_EXPORTER value: ${name}.`);\n    }\n  }\n\n  for (const exp of exporters) {\n    if (exp instanceof ConsoleSpanExporter) {\n      processors.push(new SimpleSpanProcessor(exp));\n    } else {\n      processors.push(new BatchSpanProcessor(exp));\n    }\n  }\n\n  if (exporters.length === 0) {\n    diag.warn(\n      'Unable to set up trace exporter(s) due to invalid exporter and/or protocol values.'\n    );\n  }\n\n  return processors;\n}\n\n/**\n * Get a propagator as defined by environment variables\n */\nexport function getPropagatorFromEnv(): TextMapPropagator | null | undefined {\n  // Empty and undefined MUST be treated equal.\n  const propagatorsEnvVarValue = getStringListFromEnv('OTEL_PROPAGATORS');\n  if (propagatorsEnvVarValue == null) {\n    // return undefined to fall back to default\n    return undefined;\n  }\n\n  if (propagatorsEnvVarValue.includes('none')) {\n    return null;\n  }\n\n  // Implementation note: this only contains specification required propagators that are actually hosted in this repo.\n  // Any other propagators (like aws, aws-lambda, should go into `@opentelemetry/auto-configuration-propagators` instead).\n  const propagatorsFactory = new Map<string, () => TextMapPropagator>([\n    ['tracecontext', () => new W3CTraceContextPropagator()],\n    ['baggage', () => new W3CBaggagePropagator()],\n    ['b3', () => new B3Propagator()],\n    [\n      'b3multi',\n      () => new B3Propagator({ injectEncoding: B3InjectEncoding.MULTI_HEADER }),\n    ],\n    ['jaeger', () => new JaegerPropagator()],\n  ]);\n\n  // Values MUST be deduplicated in order to register a Propagator only once.\n  const uniquePropagatorNames = Array.from(new Set(propagatorsEnvVarValue));\n  const validPropagators: TextMapPropagator[] = [];\n\n  uniquePropagatorNames.forEach(name => {\n    const propagator = propagatorsFactory.get(name)?.();\n    if (!propagator) {\n      diag.warn(\n        `Propagator \"${name}\" requested through environment variable is unavailable.`\n      );\n      return;\n    }\n\n    validPropagators.push(propagator);\n  });\n\n  if (validPropagators.length === 0) {\n    // null to signal that the default should **not** be used in its place.\n    return null;\n  } else if (uniquePropagatorNames.length === 1) {\n    return validPropagators[0];\n  } else {\n    return new CompositePropagator({\n      propagators: validPropagators,\n    });\n  }\n}\n\n/**\n * Get a propagator as defined by configuration model from configuration\n */\nexport function getPropagatorFromConfiguration(\n  config: ConfigurationModel\n): TextMapPropagator | null | undefined {\n  const propagatorsValue = getKeyListFromObjectArray(\n    config.propagator?.composite\n  );\n  if (propagatorsValue == null) {\n    // return undefined to fall back to default\n    return undefined;\n  }\n\n  if (propagatorsValue.includes('none')) {\n    return null;\n  }\n\n  // Implementation note: this only contains specification required propagators that are actually hosted in this repo.\n  // Any other propagators (like aws, aws-lambda, should go into `@opentelemetry/auto-configuration-propagators` instead).\n  const propagatorsFactory = new Map<string, () => TextMapPropagator>([\n    ['tracecontext', () => new W3CTraceContextPropagator()],\n    ['baggage', () => new W3CBaggagePropagator()],\n    ['b3', () => new B3Propagator()],\n    [\n      'b3multi',\n      () => new B3Propagator({ injectEncoding: B3InjectEncoding.MULTI_HEADER }),\n    ],\n    ['jaeger', () => new JaegerPropagator()],\n  ]);\n\n  // Values MUST be deduplicated in order to register a Propagator only once.\n  const uniquePropagatorNames = Array.from(new Set(propagatorsValue));\n  const validPropagators: TextMapPropagator[] = [];\n\n  uniquePropagatorNames.forEach(name => {\n    const propagator = propagatorsFactory.get(name)?.();\n    if (!propagator) {\n      diag.warn(\n        `Propagator \"${name}\" requested through configuration is unavailable.`\n      );\n      return;\n    }\n\n    validPropagators.push(propagator);\n  });\n\n  if (validPropagators.length === 0) {\n    // null to signal that the default should **not** be used in its place.\n    return null;\n  } else if (uniquePropagatorNames.length === 1) {\n    return validPropagators[0];\n  } else {\n    return new CompositePropagator({\n      propagators: validPropagators,\n    });\n  }\n}\n\nexport function setupContextManager(\n  contextManager: ContextManager | null | undefined\n) {\n  // null means 'do not register'\n  if (contextManager === null) {\n    return;\n  }\n\n  // undefined means 'register default'\n  if (contextManager === undefined) {\n    const defaultContextManager = new AsyncLocalStorageContextManager();\n    defaultContextManager.enable();\n    context.setGlobalContextManager(defaultContextManager);\n    return;\n  }\n\n  contextManager.enable();\n  context.setGlobalContextManager(contextManager);\n}\n\nexport function setupPropagator(\n  propagator: TextMapPropagator | null | undefined\n) {\n  // null means 'do not register'\n  if (propagator === null) {\n    return;\n  }\n\n  // undefined means 'register default'\n  if (propagator === undefined) {\n    propagation.setGlobalPropagator(\n      new CompositePropagator({\n        propagators: [\n          new W3CTraceContextPropagator(),\n          new W3CBaggagePropagator(),\n        ],\n      })\n    );\n    return;\n  }\n\n  propagation.setGlobalPropagator(propagator);\n}\n\nexport function getKeyListFromObjectArray(\n  obj: object[] | undefined\n): string[] | undefined {\n  if (!obj || obj.length === 0) {\n    return undefined;\n  }\n\n  const keys: string[] = [];\n  for (const item of obj) {\n    for (const key of Object.keys(item)) {\n      keys.push(key);\n    }\n  }\n  return keys;\n}\n\nexport function getNonNegativeNumberFromEnv(\n  envVarName: string\n): number | undefined {\n  const value = getNumberFromEnv(envVarName);\n  if (value != null && value <= 0) {\n    diag.warn(\n      `${envVarName} (${value}) is invalid, expected number greater than 0, using default.`\n    );\n    return undefined;\n  }\n  return value;\n}\n\nexport function getPeriodicExportingMetricReaderFromEnv(\n  exporter: PushMetricExporter\n): IMetricReader {\n  const defaultTimeoutMillis = 30_000;\n  const defaultIntervalMillis = 60_000;\n\n  const rawExportIntervalMillis = getNonNegativeNumberFromEnv(\n    'OTEL_METRIC_EXPORT_INTERVAL'\n  );\n  const rawExportTimeoutMillis = getNonNegativeNumberFromEnv(\n    'OTEL_METRIC_EXPORT_TIMEOUT'\n  );\n\n  // Apply defaults\n  const exportIntervalMillis = rawExportIntervalMillis ?? defaultIntervalMillis;\n  let exportTimeoutMillis = rawExportTimeoutMillis ?? defaultTimeoutMillis;\n\n  // Ensure timeout doesn't exceed interval\n  if (exportTimeoutMillis > exportIntervalMillis) {\n    // determine which env vars were set and which ones defaulted for logging purposes\n    const timeoutSource =\n      rawExportTimeoutMillis != null\n        ? rawExportTimeoutMillis.toString()\n        : `${defaultTimeoutMillis}, default`;\n    const intervalSource =\n      rawExportIntervalMillis != null\n        ? rawExportIntervalMillis.toString()\n        : `${defaultIntervalMillis}, default`;\n\n    const bothSetByUser =\n      rawExportTimeoutMillis != null && rawExportIntervalMillis != null;\n    const logMessage = `OTEL_METRIC_EXPORT_TIMEOUT (${timeoutSource}) is greater than OTEL_METRIC_EXPORT_INTERVAL (${intervalSource}). Clamping timeout to interval value.`;\n\n    // only bother users if they explicitly set both values.\n    if (bothSetByUser) {\n      diag.warn(logMessage);\n    } else {\n      diag.info(logMessage);\n    }\n\n    exportTimeoutMillis = exportIntervalMillis;\n  }\n\n  return new PeriodicExportingMetricReader({\n    exportTimeoutMillis,\n    exportIntervalMillis,\n    exporter,\n  });\n}\n\nexport function getOtlpMetricExporterFromEnv(): PushMetricExporter {\n  const protocol =\n    (\n      getStringFromEnv('OTEL_EXPORTER_OTLP_METRICS_PROTOCOL') ??\n      getStringFromEnv('OTEL_EXPORTER_OTLP_PROTOCOL')\n    )?.trim() || 'http/protobuf'; // Using || to also fall back on empty string\n\n  switch (protocol) {\n    case 'grpc':\n      return new OTLPGrpcMetricExporter();\n    case 'http/json':\n      return new OTLPHttpMetricExporter();\n    case 'http/protobuf':\n      return new OTLPProtoMetricExporter();\n  }\n\n  diag.warn(\n    `Unsupported OTLP metrics protocol: \"${protocol}\". Using http/protobuf.`\n  );\n  return new OTLPProtoMetricExporter();\n}\n\nfunction getMetricProducersFromConfiguration(\n  producers: MetricProducerConfigModel[] | undefined\n): MetricProducer[] | undefined {\n  if (!producers || producers.length === 0) {\n    return undefined;\n  }\n  const result: MetricProducer[] = [];\n  for (const producer of producers) {\n    if (producer.opencensus) {\n      try {\n        const {\n          OpenCensusMetricProducer,\n          // eslint-disable-next-line @typescript-eslint/no-require-imports\n        } = require('@opentelemetry/shim-opencensus');\n        result.push(new OpenCensusMetricProducer());\n      } catch {\n        diag.warn(\n          'OpenCensus metric producer configured but @opentelemetry/shim-opencensus is not installed.'\n        );\n      }\n    } else {\n      diag.warn('Unsupported metric producer configured.');\n    }\n  }\n  return result.length > 0 ? result : undefined;\n}\n\nexport function getPeriodicMetricReaderFromConfiguration(\n  periodic: PeriodicMetricReaderConfigModel\n): IMetricReader | undefined {\n  if (periodic.exporter) {\n    let exporter;\n    if (periodic.exporter.otlp_http !== undefined) {\n      const encoding = periodic.exporter.otlp_http?.encoding ?? 'protobuf';\n      if (encoding === 'json') {\n        exporter = new OTLPHttpMetricExporter({\n          compression:\n            periodic.exporter.otlp_http?.compression === 'gzip'\n              ? CompressionAlgorithm.GZIP\n              : CompressionAlgorithm.NONE,\n        });\n      } else if (encoding === 'protobuf') {\n        exporter = new OTLPProtoMetricExporter({\n          compression:\n            periodic.exporter.otlp_http?.compression === 'gzip'\n              ? CompressionAlgorithm.GZIP\n              : CompressionAlgorithm.NONE,\n        });\n      } else {\n        diag.warn(`Unsupported OTLP metrics encoding: ${encoding}.`);\n      }\n    }\n    if (periodic.exporter.otlp_grpc !== undefined) {\n      exporter = new OTLPGrpcMetricExporter({\n        compression:\n          periodic.exporter.otlp_grpc?.compression === 'gzip'\n            ? CompressionAlgorithm.GZIP\n            : CompressionAlgorithm.NONE,\n      });\n    }\n\n    const metricProducers = getMetricProducersFromConfiguration(\n      periodic.producers\n    );\n\n    if (exporter) {\n      // TODO(6425): add cardinality_limits\n      return new PeriodicExportingMetricReader({\n        exportIntervalMillis: periodic.interval ?? 60_000,\n        exportTimeoutMillis: periodic.timeout ?? 30_000,\n        exporter,\n        metricProducers,\n      });\n    }\n    if (periodic.exporter.console !== undefined) {\n      return new PeriodicExportingMetricReader({\n        exporter: new ConsoleMetricExporter(),\n        metricProducers,\n      });\n    }\n  }\n  diag.warn('Unsupported Metric Exporter.');\n  return undefined;\n}\n\n/**\n * Get LoggerProviderConfig from environment variables.\n */\nexport function getLoggerProviderConfigFromEnv(): LoggerProviderOptions {\n  return {\n    logRecordLimits: {\n      attributeCountLimit:\n        getNonNegativeNumberFromEnv('OTEL_LOGRECORD_ATTRIBUTE_COUNT_LIMIT') ??\n        getNonNegativeNumberFromEnv('OTEL_ATTRIBUTE_COUNT_LIMIT'),\n      attributeValueLengthLimit:\n        getNonNegativeNumberFromEnv(\n          'OTEL_LOGRECORD_ATTRIBUTE_VALUE_LENGTH_LIMIT'\n        ) ?? getNonNegativeNumberFromEnv('OTEL_ATTRIBUTE_VALUE_LENGTH_LIMIT'),\n    },\n  };\n}\n\n/**\n * Get configuration for BatchLogRecordProcessor from environment variables.\n */\nexport function getBatchLogRecordProcessorConfigFromEnv(): BufferConfig {\n  return {\n    maxQueueSize: getNonNegativeNumberFromEnv('OTEL_BLRP_MAX_QUEUE_SIZE'),\n    scheduledDelayMillis: getNonNegativeNumberFromEnv(\n      'OTEL_BLRP_SCHEDULE_DELAY'\n    ),\n    exportTimeoutMillis: getNonNegativeNumberFromEnv(\n      'OTEL_BLRP_EXPORT_TIMEOUT'\n    ),\n    maxExportBatchSize: getNonNegativeNumberFromEnv(\n      'OTEL_BLRP_MAX_EXPORT_BATCH_SIZE'\n    ),\n  };\n}\n\nexport function getBatchLogRecordProcessorFromEnv(\n  exporter: LogRecordExporter\n): BatchLogRecordProcessor {\n  return new BatchLogRecordProcessor(\n    exporter,\n    getBatchLogRecordProcessorConfigFromEnv()\n  );\n}\n\nexport function getLogRecordExporter(\n  exporter: LogRecordExporterConfigModel\n): LogRecordExporter | undefined {\n  if (exporter.otlp_http !== undefined) {\n    const cfg = exporter.otlp_http;\n    const commonOpts = {\n      compression:\n        cfg?.compression === 'gzip'\n          ? CompressionAlgorithm.GZIP\n          : CompressionAlgorithm.NONE,\n      url: cfg?.endpoint ?? undefined,\n      headers: getHeadersFromConfiguration(cfg?.headers),\n      timeoutMillis: validateExporterTimeout(cfg?.timeout),\n      httpAgentOptions: getHttpAgentOptionsFromTls(cfg?.tls),\n    };\n    const encoding = cfg?.encoding ?? 'protobuf';\n    if (encoding === 'json') {\n      return new OTLPHttpLogExporter(commonOpts);\n    }\n    if (encoding === 'protobuf') {\n      return new OTLPProtoLogExporter(commonOpts);\n    }\n    diag.warn(\n      `Unsupported OTLP logs encoding: ${encoding}. Using http/protobuf.`\n    );\n    return new OTLPProtoLogExporter(commonOpts);\n  } else if (exporter.otlp_grpc !== undefined) {\n    const cfg = exporter.otlp_grpc;\n    return new OTLPGrpcLogExporter({\n      compression:\n        cfg?.compression === 'gzip'\n          ? CompressionAlgorithm.GZIP\n          : CompressionAlgorithm.NONE,\n      url: cfg?.endpoint ?? undefined,\n      timeoutMillis: validateExporterTimeout(cfg?.timeout),\n      credentials: getGrpcCredentialsFromTls(cfg?.tls),\n      metadata: getGrpcMetadataFromHeaders(cfg?.headers),\n    });\n  } else if (exporter.console !== undefined) {\n    return new ConsoleLogRecordExporter();\n  }\n  diag.warn('Unsupported Exporter value. No Log Record Exporter registered');\n  return undefined;\n}\n\nexport function getLogRecordProcessorsFromConfiguration(\n  config: ConfigurationModel\n): LogRecordProcessor[] | undefined {\n  const logRecordProcessors: LogRecordProcessor[] = [];\n  config.logger_provider?.processors?.forEach(processor => {\n    if (processor.batch) {\n      const exporter = getLogRecordExporter(processor.batch.exporter);\n      if (exporter) {\n        logRecordProcessors.push(\n          new BatchLogRecordProcessor(exporter, {\n            maxQueueSize: processor.batch.max_queue_size ?? undefined,\n            maxExportBatchSize:\n              processor.batch.max_export_batch_size ?? undefined,\n            scheduledDelayMillis: processor.batch.schedule_delay ?? undefined,\n            exportTimeoutMillis: processor.batch.export_timeout ?? undefined,\n          })\n        );\n      }\n    }\n    if (processor.simple) {\n      const exporter = getLogRecordExporter(processor.simple.exporter);\n      if (exporter) {\n        logRecordProcessors.push(new SimpleLogRecordProcessor(exporter));\n      }\n    }\n  });\n  if (logRecordProcessors.length > 0) {\n    return logRecordProcessors;\n  }\n  return undefined;\n}\n\nexport function getHeadersFromConfiguration(\n  headers: NameStringValuePairConfigModel[] | undefined\n): Record<string, string> | undefined {\n  if (!headers) {\n    return undefined;\n  }\n  const result: Record<string, string> = {};\n  headers.forEach(header => {\n    if (header.value !== null) {\n      result[header.name] = header.value;\n    }\n  });\n  return result;\n}\n\n/**\n * Validate an exporter timeout value. The spec says 0 means \"no limit\n * (infinity)\" but the JS exporters don't support that yet (see #6617).\n * Warn and return undefined so the exporter falls back to its default.\n */\nfunction validateExporterTimeout(\n  timeout: number | null | undefined\n): number | undefined {\n  if (timeout === null) {\n    return undefined;\n  } else if (timeout === 0) {\n    diag.warn(\n      'Exporter timeout of 0 (infinite) is not supported. Using default timeout.'\n    );\n    return undefined;\n  }\n  return timeout;\n}\n\nexport function getHttpAgentOptionsFromTls(\n  tls: HttpTlsConfigModel | undefined\n): { ca?: Buffer; cert?: Buffer; key?: Buffer } | undefined {\n  if (tls && (tls.ca_file || tls.cert_file || tls.key_file)) {\n    return {\n      ca: readFileOrWarn(tls.ca_file, 'TLS CA'),\n      cert: readFileOrWarn(tls.cert_file, 'TLS cert'),\n      key: readFileOrWarn(tls.key_file, 'TLS key'),\n    };\n  }\n  return undefined;\n}\n\nfunction getGrpcCredentialsFromTls(tls?: GrpcTlsConfigModel) {\n  if (tls?.insecure) {\n    return createInsecureCredentials();\n  }\n  const rootCert = readFileOrWarn(tls?.ca_file, 'TLS CA');\n  const privateKey = readFileOrWarn(tls?.key_file, 'TLS key');\n  const certChain = readFileOrWarn(tls?.cert_file, 'TLS cert');\n  if (rootCert || privateKey || certChain) {\n    try {\n      return createSslCredentials(rootCert, privateKey, certChain);\n    } catch (e) {\n      diag.warn(`Failed to create gRPC SSL credentials: ${e}`);\n      return undefined;\n    }\n  }\n  return undefined;\n}\n\nfunction getGrpcMetadataFromHeaders(\n  headers: NameStringValuePairConfigModel[] | undefined\n) {\n  if (!headers || headers.length === 0) {\n    return undefined;\n  }\n  const metadata = createEmptyMetadata();\n  for (const header of headers) {\n    if (header.value !== null) {\n      metadata.set(header.name, header.value);\n    }\n  }\n  return metadata;\n}\n\nfunction readFileOrWarn(\n  filePath: string | null | undefined,\n  label: string\n): Buffer | undefined {\n  if (!filePath) return undefined;\n  try {\n    return fs.readFileSync(filePath);\n  } catch (e) {\n    diag.warn(`Failed to read ${label} file at ${filePath}: ${e}`);\n    return undefined;\n  }\n}\n\nexport function getSpanExporter(\n  exporter: SpanExporterConfigModel\n): SpanExporter | undefined {\n  if (exporter.otlp_http !== undefined) {\n    const encoding = exporter.otlp_http?.encoding ?? 'protobuf';\n    if (encoding === 'json') {\n      return new OTLPHttpTraceExporter({\n        compression:\n          exporter.otlp_http?.compression === 'gzip'\n            ? CompressionAlgorithm.GZIP\n            : CompressionAlgorithm.NONE,\n        url: exporter.otlp_http?.endpoint ?? undefined,\n        headers: getHeadersFromConfiguration(exporter.otlp_http?.headers),\n        timeoutMillis: validateExporterTimeout(exporter.otlp_http?.timeout),\n        httpAgentOptions: getHttpAgentOptionsFromTls(exporter.otlp_http?.tls),\n      });\n    } else {\n      return new OTLPProtoTraceExporter({\n        compression:\n          exporter.otlp_http?.compression === 'gzip'\n            ? CompressionAlgorithm.GZIP\n            : CompressionAlgorithm.NONE,\n        url: exporter.otlp_http?.endpoint ?? undefined,\n        headers: getHeadersFromConfiguration(exporter.otlp_http?.headers),\n        timeoutMillis: validateExporterTimeout(exporter.otlp_http?.timeout),\n        httpAgentOptions: getHttpAgentOptionsFromTls(exporter.otlp_http?.tls),\n      });\n    }\n  } else if (exporter.otlp_grpc !== undefined) {\n    return new OTLPGrpcTraceExporter({\n      compression:\n        exporter.otlp_grpc?.compression === 'gzip'\n          ? CompressionAlgorithm.GZIP\n          : CompressionAlgorithm.NONE,\n      url: exporter.otlp_grpc?.endpoint ?? undefined,\n      timeoutMillis: validateExporterTimeout(exporter.otlp_grpc?.timeout),\n      credentials: getGrpcCredentialsFromTls(exporter.otlp_grpc?.tls),\n      metadata: getGrpcMetadataFromHeaders(exporter.otlp_grpc?.headers),\n    });\n  } else if (exporter.console !== undefined) {\n    return new ConsoleSpanExporter();\n  }\n  diag.warn('Unsupported Exporter value. No Span Exporter registered');\n  return undefined;\n}\n\nexport function getSpanProcessorsFromConfiguration(\n  config: ConfigurationModel\n): SpanProcessor[] | undefined {\n  const spanProcessors: SpanProcessor[] = [];\n  config.tracer_provider?.processors?.forEach(processor => {\n    if (processor.batch) {\n      const exporter = getSpanExporter(processor.batch.exporter);\n      if (exporter) {\n        spanProcessors.push(\n          new BatchSpanProcessor(exporter, {\n            maxQueueSize: processor.batch.max_queue_size ?? undefined,\n            maxExportBatchSize:\n              processor.batch.max_export_batch_size ?? undefined,\n            scheduledDelayMillis: processor.batch.schedule_delay ?? undefined,\n            exportTimeoutMillis: processor.batch.export_timeout ?? undefined,\n          })\n        );\n      }\n    }\n    if (processor.simple) {\n      const exporter = getSpanExporter(processor.simple.exporter);\n      if (exporter) {\n        spanProcessors.push(new SimpleSpanProcessor(exporter));\n      }\n    }\n  });\n  if (spanProcessors.length > 0) {\n    return spanProcessors;\n  }\n  return undefined;\n}\n\nexport function getSpanLimitsFromConfiguration(\n  config: ConfigurationModel\n): SpanLimits | undefined {\n  if (config.tracer_provider?.limits) {\n    const limitsConfig = config.tracer_provider.limits;\n    const spanLimits: SpanLimits = {};\n    spanLimits.attributeCountLimit = limitsConfig.attribute_count_limit ?? 128;\n    spanLimits.eventCountLimit = limitsConfig.event_count_limit ?? 128;\n    spanLimits.linkCountLimit = limitsConfig.link_count_limit ?? 128;\n    spanLimits.attributePerLinkCountLimit =\n      limitsConfig.link_attribute_count_limit ?? 128;\n    spanLimits.attributePerEventCountLimit =\n      limitsConfig.event_attribute_count_limit ?? 128;\n\n    if (limitsConfig.attribute_value_length_limit != null) {\n      spanLimits.attributeValueLengthLimit =\n        limitsConfig.attribute_value_length_limit;\n    }\n\n    return spanLimits;\n  }\n  return undefined;\n}\n\nexport function getMeterReadersFromConfiguration(\n  config: ConfigurationModel\n): IMetricReader[] | undefined {\n  const metricReaders: IMetricReader[] = [];\n  config.meter_provider?.readers?.forEach(reader => {\n    if (reader.periodic) {\n      const periodicReader = getPeriodicMetricReaderFromConfiguration(\n        reader.periodic\n      );\n      if (periodicReader) {\n        metricReaders.push(periodicReader);\n      }\n    }\n  });\n  if (metricReaders.length > 0) {\n    return metricReaders;\n  }\n  return undefined;\n}\n\nexport function getInstrumentType(\n  instrument: InstrumentTypeConfigModel\n): InstrumentType | undefined {\n  switch (instrument) {\n    case 'counter':\n      return InstrumentType.COUNTER;\n    case 'gauge':\n      return InstrumentType.GAUGE;\n    case 'histogram':\n      return InstrumentType.HISTOGRAM;\n    case 'observable_counter':\n      return InstrumentType.OBSERVABLE_COUNTER;\n    case 'observable_gauge':\n      return InstrumentType.OBSERVABLE_GAUGE;\n    case 'observable_up_down_counter':\n      return InstrumentType.OBSERVABLE_UP_DOWN_COUNTER;\n    case 'up_down_counter':\n      return InstrumentType.UP_DOWN_COUNTER;\n    default:\n      diag.warn(`Unsupported instrument type: ${instrument}`);\n      return undefined;\n  }\n}\n\nexport function getAggregationType(\n  aggregation: AggregationConfigModel\n): AggregationOption | undefined {\n  if (aggregation.default) {\n    return {\n      type: AggregationType.DEFAULT,\n    };\n  }\n  if (aggregation.drop) {\n    return {\n      type: AggregationType.DROP,\n    };\n  }\n  if (aggregation.explicit_bucket_histogram) {\n    return {\n      type: AggregationType.EXPLICIT_BUCKET_HISTOGRAM,\n      options: {\n        recordMinMax:\n          aggregation.explicit_bucket_histogram.record_min_max ?? true,\n        boundaries: aggregation.explicit_bucket_histogram.boundaries ?? [\n          0, 5, 10, 25, 50, 75, 100, 250, 500, 750, 1000, 2500, 5000, 7500,\n          10000,\n        ],\n      },\n    };\n  }\n\n  if (aggregation.base2_exponential_bucket_histogram) {\n    return {\n      type: AggregationType.EXPONENTIAL_HISTOGRAM,\n      options: {\n        recordMinMax:\n          aggregation.base2_exponential_bucket_histogram.record_min_max ??\n          undefined,\n        maxSize:\n          aggregation.base2_exponential_bucket_histogram.max_size ?? undefined,\n      },\n    };\n  }\n  if (aggregation.last_value) {\n    return {\n      type: AggregationType.LAST_VALUE,\n    };\n  }\n  if (aggregation.sum) {\n    return {\n      type: AggregationType.SUM,\n    };\n  }\n\n  diag.warn('Unsupported aggregation type');\n  return undefined;\n}\n\nexport function getMeterViewsFromConfiguration(\n  config: ConfigurationModel\n): ViewOptions[] | undefined {\n  const metricViews: ViewOptions[] = [];\n  config.meter_provider?.views?.forEach(view => {\n    const viewOption: ViewOptions = {};\n    if (view.selector) {\n      if (view.selector.instrument_name) {\n        viewOption.instrumentName = view.selector.instrument_name;\n      }\n      if (view.selector.instrument_type) {\n        const instrumentType = getInstrumentType(view.selector.instrument_type);\n        if (instrumentType) {\n          viewOption.instrumentType = instrumentType;\n        }\n      }\n      if (view.selector.unit) {\n        viewOption.instrumentUnit = view.selector.unit;\n      }\n      if (view.selector.meter_name) {\n        viewOption.meterName = view.selector.meter_name;\n      }\n      if (view.selector.meter_version) {\n        viewOption.meterVersion = view.selector.meter_version;\n      }\n      if (view.selector.meter_schema_url) {\n        viewOption.meterSchemaUrl = view.selector.meter_schema_url;\n      }\n    }\n    if (view.stream) {\n      if (view.stream.name) {\n        viewOption.name = view.stream.name;\n      }\n      viewOption.aggregationCardinalityLimit =\n        view.stream.aggregation_cardinality_limit ?? 2_000;\n      if (view.stream.description) {\n        viewOption.description = view.stream.description;\n      }\n      if (view.stream.aggregation) {\n        const aggregationType = getAggregationType(view.stream.aggregation);\n        if (aggregationType) {\n          viewOption.aggregation = aggregationType;\n        }\n      }\n      if (view.stream.attribute_keys) {\n        const processors: IAttributesProcessor[] = [];\n        if (\n          view.stream.attribute_keys.included &&\n          view.stream.attribute_keys.included.length > 0\n        ) {\n          processors.push(\n            createAllowListAttributesProcessor(\n              view.stream.attribute_keys.included\n            )\n          );\n        }\n        if (\n          view.stream.attribute_keys.excluded &&\n          view.stream.attribute_keys.excluded.length > 0\n        ) {\n          processors.push(\n            createDenyListAttributesProcessor(\n              view.stream.attribute_keys.excluded\n            )\n          );\n        }\n        if (processors.length > 0) {\n          viewOption.attributesProcessors = processors;\n        }\n      }\n    }\n\n    if (Object.keys(viewOption).length > 0) {\n      metricViews.push(viewOption);\n    }\n  });\n  if (metricViews.length > 0) {\n    return metricViews;\n  }\n  return undefined;\n}\n\nexport function getInstanceID(config: ConfigurationModel): string | undefined {\n  if (config.resource?.attributes) {\n    for (let i = 0; i < config.resource.attributes.length; i++) {\n      const element = config.resource.attributes[i];\n      if (element.name === 'service.instance.id') {\n        return element.value?.toString();\n      }\n    }\n  }\n  return undefined;\n}\n\nconst DEFAULT_RATIO = 1;\n\n/**\n * Builds a {@link Sampler} from a {@link SamplerConfigModel} data model.\n * This allows sampler construction from declarative configuration.\n */\nexport function buildSamplerFromConfig(\n  samplerConfig: SamplerConfigModel\n): Sampler {\n  if (samplerConfig.always_on !== undefined) {\n    return new AlwaysOnSampler();\n  }\n  if (samplerConfig.always_off !== undefined) {\n    return new AlwaysOffSampler();\n  }\n  if (samplerConfig.trace_id_ratio_based !== undefined) {\n    return new TraceIdRatioBasedSampler(\n      samplerConfig.trace_id_ratio_based?.ratio ?? DEFAULT_RATIO\n    );\n  }\n  if (samplerConfig.parent_based !== undefined) {\n    const pb = samplerConfig.parent_based ?? {};\n    return new ParentBasedSampler({\n      root: pb.root ? buildSamplerFromConfig(pb.root) : new AlwaysOnSampler(),\n      remoteParentSampled: pb.remote_parent_sampled\n        ? buildSamplerFromConfig(pb.remote_parent_sampled)\n        : undefined,\n      remoteParentNotSampled: pb.remote_parent_not_sampled\n        ? buildSamplerFromConfig(pb.remote_parent_not_sampled)\n        : undefined,\n      localParentSampled: pb.local_parent_sampled\n        ? buildSamplerFromConfig(pb.local_parent_sampled)\n        : undefined,\n      localParentNotSampled: pb.local_parent_not_sampled\n        ? buildSamplerFromConfig(pb.local_parent_not_sampled)\n        : undefined,\n    });\n  }\n  diag.error('Unknown sampler config, defaulting to ParentBased(AlwaysOn).');\n  return new ParentBasedSampler({ root: new AlwaysOnSampler() });\n}\n"]}

build/src/version.d.ts

@@ -1,2 +0,2 @@
-export declare const VERSION = "0.218.0";
+export declare const VERSION = "0.219.0";
 //# sourceMappingURL=version.d.ts.map

build/src/version.js

@@ -9,3 +9,3 @@ "use strict";
 // this is autogenerated file, see scripts/version-update.js
-exports.VERSION = '0.218.0';
+exports.VERSION = '0.219.0';
 //# sourceMappingURL=version.js.map

build/src/version.js.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"version.js","sourceRoot":"","sources":["../../src/version.ts"],"names":[],"mappings":";AAAA;;;GAGG;;;AAEH,4DAA4D;AAC/C,QAAA,OAAO,GAAG,SAAS,CAAC","sourcesContent":["/*\n * Copyright The OpenTelemetry Authors\n * SPDX-License-Identifier: Apache-2.0\n */\n\n// this is autogenerated file, see scripts/version-update.js\nexport const VERSION = '0.218.0';\n"]}
+{"version":3,"file":"version.js","sourceRoot":"","sources":["../../src/version.ts"],"names":[],"mappings":";AAAA;;;GAGG;;;AAEH,4DAA4D;AAC/C,QAAA,OAAO,GAAG,SAAS,CAAC","sourcesContent":["/*\n * Copyright The OpenTelemetry Authors\n * SPDX-License-Identifier: Apache-2.0\n */\n\n// this is autogenerated file, see scripts/version-update.js\nexport const VERSION = '0.219.0';\n"]}

package.json

 {
   "name": "@opentelemetry/sdk-node",
-  "version": "0.218.0",
+  "version": "0.219.0",
   "description": "OpenTelemetry SDK for Node.js",
@@ -13,4 +13,4 @@ "main": "build/src/index.js",
     "test": "nyc mocha test/**/*.test.ts",
-    "lint": "eslint . --ext .ts",
-    "lint:fix": "eslint . --ext .ts --fix",
+    "lint": "eslint .",
+    "lint:fix": "eslint . --fix",
     "version": "node ../../../scripts/version-update.js",
@@ -47,26 +47,27 @@ "watch": "tsc --build --watch",
   "dependencies": {
-    "@opentelemetry/api-logs": "0.218.0",
-    "@opentelemetry/configuration": "0.218.0",
-    "@opentelemetry/context-async-hooks": "2.7.1",
-    "@opentelemetry/core": "2.7.1",
-    "@opentelemetry/exporter-logs-otlp-grpc": "0.218.0",
-    "@opentelemetry/exporter-logs-otlp-http": "0.218.0",
-    "@opentelemetry/exporter-logs-otlp-proto": "0.218.0",
-    "@opentelemetry/exporter-metrics-otlp-grpc": "0.218.0",
-    "@opentelemetry/exporter-metrics-otlp-http": "0.218.0",
-    "@opentelemetry/exporter-metrics-otlp-proto": "0.218.0",
-    "@opentelemetry/exporter-prometheus": "0.218.0",
-    "@opentelemetry/exporter-trace-otlp-grpc": "0.218.0",
-    "@opentelemetry/exporter-trace-otlp-http": "0.218.0",
-    "@opentelemetry/exporter-trace-otlp-proto": "0.218.0",
-    "@opentelemetry/exporter-zipkin": "2.7.1",
-    "@opentelemetry/instrumentation": "0.218.0",
-    "@opentelemetry/otlp-exporter-base": "0.218.0",
-    "@opentelemetry/propagator-b3": "2.7.1",
-    "@opentelemetry/propagator-jaeger": "2.7.1",
-    "@opentelemetry/resources": "2.7.1",
-    "@opentelemetry/sdk-logs": "0.218.0",
-    "@opentelemetry/sdk-metrics": "2.7.1",
-    "@opentelemetry/sdk-trace-base": "2.7.1",
-    "@opentelemetry/sdk-trace-node": "2.7.1",
+    "@opentelemetry/api-logs": "0.219.0",
+    "@opentelemetry/configuration": "0.219.0",
+    "@opentelemetry/context-async-hooks": "2.8.0",
+    "@opentelemetry/core": "2.8.0",
+    "@opentelemetry/exporter-logs-otlp-grpc": "0.219.0",
+    "@opentelemetry/exporter-logs-otlp-http": "0.219.0",
+    "@opentelemetry/exporter-logs-otlp-proto": "0.219.0",
+    "@opentelemetry/exporter-metrics-otlp-grpc": "0.219.0",
+    "@opentelemetry/exporter-metrics-otlp-http": "0.219.0",
+    "@opentelemetry/exporter-metrics-otlp-proto": "0.219.0",
+    "@opentelemetry/exporter-prometheus": "0.219.0",
+    "@opentelemetry/exporter-trace-otlp-grpc": "0.219.0",
+    "@opentelemetry/exporter-trace-otlp-http": "0.219.0",
+    "@opentelemetry/exporter-trace-otlp-proto": "0.219.0",
+    "@opentelemetry/exporter-zipkin": "2.8.0",
+    "@opentelemetry/instrumentation": "0.219.0",
+    "@opentelemetry/otlp-exporter-base": "0.219.0",
+    "@opentelemetry/otlp-grpc-exporter-base": "0.219.0",
+    "@opentelemetry/propagator-b3": "2.8.0",
+    "@opentelemetry/propagator-jaeger": "2.8.0",
+    "@opentelemetry/resources": "2.8.0",
+    "@opentelemetry/sdk-logs": "0.219.0",
+    "@opentelemetry/sdk-metrics": "2.8.0",
+    "@opentelemetry/sdk-trace-base": "2.8.0",
+    "@opentelemetry/sdk-trace-node": "2.8.0",
     "@opentelemetry/semantic-conventions": "^1.29.0"
@@ -85,3 +86,3 @@ },
     "sinon": "18.0.1",
-    "ts-loader": "9.5.4",
+    "ts-loader": "9.5.7",
     "typescript": "5.0.4"
@@ -91,3 +92,3 @@ },
   "sideEffects": false,
-  "gitHead": "06ad0eaaecbd49f5ead871325f852cc2a3454079"
+  "gitHead": "13a035bc695996cf4aec885fef7b9866f48bc555"
 }

README.md

@@ -246,2 +246,3 @@ # OpenTelemetry SDK for Node.js
 
+- Metric reader metrics: [MetricReaderMetrics](../../../packages//sdk-metrics/src/export/MetricReaderMetrics.ts)
 - Logger metrics: [LoggerMetrics.ts](../sdk-logs/src/LoggerMetrics.ts)
@@ -248,0 +249,0 @@ - Span metrics: [TracerMetrics.ts](../../../packages/opentelemetry-sdk-trace-base/src/TracerMetrics.ts)

No alert changes

Improved metrics

Total package byte prevSize

227453

4.08%

Lines of code

1899

3.77%

Number of lines in readme file

266

0.38%

Worsened metrics

Dependency count

27

3.85%

Dependency changes

• + Added

  @opentelemetry/otlp-grpc-exporter-base@0.219.0

• + Added

  @opentelemetry/api-logs@0.219.0
  (transitive)

• + Added

  @opentelemetry/configuration@0.219.0
  (transitive)

• + Added

  @opentelemetry/context-async-hooks@2.8.0
  (transitive)

• + Added

  @opentelemetry/core@2.8.0
  (transitive)

• + Added

  @opentelemetry/exporter-logs-otlp-grpc@0.219.0
  (transitive)

• + Added

  @opentelemetry/exporter-logs-otlp-http@0.219.0
  (transitive)

• + Added

  @opentelemetry/exporter-logs-otlp-proto@0.219.0
  (transitive)

• + Added

  @opentelemetry/exporter-metrics-otlp-grpc@0.219.0
  (transitive)

• + Added

  @opentelemetry/exporter-metrics-otlp-http@0.219.0
  (transitive)

• + Added

  @opentelemetry/exporter-metrics-otlp-proto@0.219.0
  (transitive)

• + Added

  @opentelemetry/exporter-prometheus@0.219.0
  (transitive)

• + Added

  @opentelemetry/exporter-trace-otlp-grpc@0.219.0
  (transitive)

• + Added

  @opentelemetry/exporter-trace-otlp-http@0.219.0
  (transitive)

• + Added

  @opentelemetry/exporter-trace-otlp-proto@0.219.0
  (transitive)

• + Added

  @opentelemetry/exporter-zipkin@2.8.0
  (transitive)

• + Added

  @opentelemetry/instrumentation@0.219.0
  (transitive)

• + Added

  @opentelemetry/otlp-exporter-base@0.219.0
  (transitive)

• + Added

  @opentelemetry/otlp-grpc-exporter-base@0.219.0
  (transitive)

• + Added

  @opentelemetry/otlp-transformer@0.219.0
  (transitive)

• + Added

  @opentelemetry/propagator-b3@2.8.0
  (transitive)

• + Added

  @opentelemetry/propagator-jaeger@2.8.0
  (transitive)

• + Added

  @opentelemetry/resources@2.8.0
  (transitive)

• + Added

  @opentelemetry/sdk-logs@0.219.0
  (transitive)

• + Added

  @opentelemetry/sdk-metrics@2.8.0
  (transitive)

• + Added

  @opentelemetry/sdk-trace-base@2.8.0
  (transitive)

• + Added

  @opentelemetry/sdk-trace-node@2.8.0
  (transitive)

• - Removed

  @opentelemetry/api-logs@0.218.0
  (transitive)

• - Removed

  @opentelemetry/configuration@0.218.0
  (transitive)

• - Removed

  @opentelemetry/context-async-hooks@2.7.1
  (transitive)

• - Removed

  @opentelemetry/core@2.7.1
  (transitive)

• - Removed

  @opentelemetry/exporter-logs-otlp-grpc@0.218.0
  (transitive)

• - Removed

  @opentelemetry/exporter-logs-otlp-http@0.218.0
  (transitive)

• - Removed

  @opentelemetry/exporter-logs-otlp-proto@0.218.0
  (transitive)

• - Removed

  @opentelemetry/exporter-metrics-otlp-grpc@0.218.0
  (transitive)

• - Removed

  @opentelemetry/exporter-metrics-otlp-http@0.218.0
  (transitive)

• - Removed

  @opentelemetry/exporter-metrics-otlp-proto@0.218.0
  (transitive)

• - Removed

  @opentelemetry/exporter-prometheus@0.218.0
  (transitive)

• - Removed

  @opentelemetry/exporter-trace-otlp-grpc@0.218.0
  (transitive)

• - Removed

  @opentelemetry/exporter-trace-otlp-http@0.218.0
  (transitive)

• - Removed

  @opentelemetry/exporter-trace-otlp-proto@0.218.0
  (transitive)

• - Removed

  @opentelemetry/exporter-zipkin@2.7.1
  (transitive)

• - Removed

  @opentelemetry/instrumentation@0.218.0
  (transitive)

• - Removed

  @opentelemetry/otlp-exporter-base@0.218.0
  (transitive)

• - Removed

  @opentelemetry/otlp-grpc-exporter-base@0.218.0
  (transitive)

• - Removed

  @opentelemetry/otlp-transformer@0.218.0
  (transitive)

• - Removed

  @opentelemetry/propagator-b3@2.7.1
  (transitive)

• - Removed

  @opentelemetry/propagator-jaeger@2.7.1
  (transitive)

• - Removed

  @opentelemetry/resources@2.7.1
  (transitive)

• - Removed

  @opentelemetry/sdk-logs@0.218.0
  (transitive)

• - Removed

  @opentelemetry/sdk-metrics@2.7.1
  (transitive)

• - Removed

  @opentelemetry/sdk-trace-base@2.7.1
  (transitive)

• - Removed

  @opentelemetry/sdk-trace-node@2.7.1
  (transitive)

• Updated

  @opentelemetry/api-logs@0.219.0

• Updated

  @opentelemetry/configuration@0.219.0

• Updated

  @opentelemetry/context-async-hooks@2.8.0

• Updated

  @opentelemetry/core@2.8.0

• Updated

  @opentelemetry/exporter-logs-otlp-grpc@0.219.0

• Updated

  @opentelemetry/exporter-logs-otlp-http@0.219.0

• Updated

  @opentelemetry/exporter-logs-otlp-proto@0.219.0

• Updated

  @opentelemetry/exporter-metrics-otlp-grpc@0.219.0

• Updated

  @opentelemetry/exporter-metrics-otlp-http@0.219.0

• Updated

  @opentelemetry/exporter-metrics-otlp-proto@0.219.0

• Updated

  @opentelemetry/exporter-prometheus@0.219.0

• Updated

  @opentelemetry/exporter-trace-otlp-grpc@0.219.0

• Updated

  @opentelemetry/exporter-trace-otlp-http@0.219.0

• Updated

  @opentelemetry/exporter-trace-otlp-proto@0.219.0

• Updated

  @opentelemetry/exporter-zipkin@2.8.0

• Updated

  @opentelemetry/instrumentation@0.219.0

• Updated

  @opentelemetry/otlp-exporter-base@0.219.0

• Updated

  @opentelemetry/propagator-b3@2.8.0

• Updated

  @opentelemetry/propagator-jaeger@2.8.0

• Updated

  @opentelemetry/resources@2.8.0

• Updated

  @opentelemetry/sdk-logs@0.219.0

• Updated

  @opentelemetry/sdk-metrics@2.8.0

• Updated

  @opentelemetry/sdk-trace-base@2.8.0

• Updated

  @opentelemetry/sdk-trace-node@2.8.0