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Note this is an async\n   * function to conform to the Detector interface.\n   *\n   * @param config The resource detection config\n   */\n  detect(_config?: ResourceDetectionConfig): IResource {\n    const attributes: ResourceAttributes = {};\n    const env = getEnv();\n\n    const rawAttributes = env.OTEL_RESOURCE_ATTRIBUTES;\n    const serviceName = env.OTEL_SERVICE_NAME;\n\n    if (rawAttributes) {\n      try {\n        const parsedAttributes = this._parseResourceAttributes(rawAttributes);\n        Object.assign(attributes, parsedAttributes);\n      } catch (e) {\n        diag.debug(`EnvDetector failed: ${e.message}`);\n      }\n    }\n\n    if (serviceName) {\n      attributes[SEMRESATTRS_SERVICE_NAME] = serviceName;\n    }\n\n    return new Resource(attributes);\n  }\n\n  /**\n   * Creates an attribute map from the OTEL_RESOURCE_ATTRIBUTES environment\n   * variable.\n   *\n   * OTEL_RESOURCE_ATTRIBUTES: A comma-separated list of attributes describing\n   * the source in more detail, e.g. “key1=val1,key2=val2”. Domain names and\n   * paths are accepted as attribute keys. Values may be quoted or unquoted in\n   * general. If a value contains whitespace, =, or \" characters, it must\n   * always be quoted.\n   *\n   * @param rawEnvAttributes The resource attributes as a comma-separated list\n   * of key/value pairs.\n   * @returns The sanitized resource attributes.\n   */\n  private _parseResourceAttributes(\n    rawEnvAttributes?: string\n  ): ResourceAttributes {\n    if (!rawEnvAttributes) return {};\n\n    const attributes: ResourceAttributes = {};\n    const rawAttributes: string[] = rawEnvAttributes.split(\n      this._COMMA_SEPARATOR,\n      -1\n    );\n    for (const rawAttribute of rawAttributes) {\n      const keyValuePair: string[] = rawAttribute.split(\n        this._LABEL_KEY_VALUE_SPLITTER,\n        -1\n      );\n      if (keyValuePair.length !== 2) {\n        continue;\n      }\n      let [key, value] = keyValuePair;\n      // Leading and trailing whitespaces are trimmed.\n      key = key.trim();\n      value = value.trim().split(/^\"|\"$/).join('');\n      if (!this._isValidAndNotEmpty(key)) {\n        throw new Error(`Attribute key ${this._ERROR_MESSAGE_INVALID_CHARS}`);\n      }\n      if (!this._isValid(value)) {\n        throw new Error(`Attribute value ${this._ERROR_MESSAGE_INVALID_VALUE}`);\n      }\n      attributes[key] = decodeURIComponent(value);\n    }\n    return attributes;\n  }\n\n  /**\n   * Determines whether the given String is a valid printable ASCII string with\n   * a length not exceed _MAX_LENGTH characters.\n   *\n   * @param str The String to be validated.\n   * @returns Whether the String is valid.\n   */\n  private _isValid(name: string): boolean {\n    return name.length <= this._MAX_LENGTH && this._isBaggageOctetString(name);\n  }\n\n  // https://www.w3.org/TR/baggage/#definition\n  private _isBaggageOctetString(str: string): boolean {\n    for (let i = 0; i < str.length; i++) {\n      const ch = str.charCodeAt(i);\n      if (ch < 0x21 || ch === 0x2c || ch === 0x3b || ch === 0x5c || ch > 0x7e) {\n        return false;\n      }\n    }\n    return true;\n  }\n\n  /**\n   * Determines whether the given String is a valid printable ASCII string with\n   * a length greater than 0 and not exceed _MAX_LENGTH characters.\n   *\n   * @param str The String to be validated.\n   * @returns Whether the String is valid and not empty.\n   */\n  private _isValidAndNotEmpty(str: string): boolean {\n    return str.length > 0 && this._isValid(str);\n  }\n}\n\nexport const envDetectorSync = new EnvDetectorSync();\n"]}