override def onDriverShutdown()

in backends-velox/src/main/scala/io/glutenproject/backendsapi/velox/ListenerApiImpl.scala [50:100]
48 lines of code
27 McCabe index (conditional complexity)

  override def onDriverShutdown(): Unit = shutdown()

  override def onExecutorStart(conf: SparkConf): Unit = initialize(conf)

  override def onExecutorShutdown(): Unit = shutdown()

  private def loadLibFromJar(load: JniLibLoader): Unit = {
    val system = "cat /etc/os-release".!!
    val systemNamePattern = "^NAME=\"?(.*)\"?".r
    val systemVersionPattern = "^VERSION=\"?(.*)\"?".r
    val systemInfoLines = system.stripMargin.split("\n")
    val systemNamePattern(systemName) =
      systemInfoLines.find(_.startsWith("NAME=")).getOrElse("")
    val systemVersionPattern(systemVersion) =
      systemInfoLines.find(_.startsWith("VERSION=")).getOrElse("")
    if (systemName.isEmpty || systemVersion.isEmpty) {
      throw new GlutenException("Failed to get OS name and version info.")
    }
    val loader = if (systemName.contains("Ubuntu") && systemVersion.startsWith("20.04")) {
      new SharedLibraryLoaderUbuntu2004
    } else if (systemName.contains("Ubuntu") && systemVersion.startsWith("22.04")) {
      new SharedLibraryLoaderUbuntu2204
    } else if (systemName.contains("CentOS") && systemVersion.startsWith("8")) {
      new SharedLibraryLoaderCentos8
    } else if (systemName.contains("CentOS") && systemVersion.startsWith("7")) {
      new SharedLibraryLoaderCentos7
    } else if (systemName.contains("Alibaba Cloud Linux") && systemVersion.startsWith("3")) {
      new SharedLibraryLoaderCentos8
    } else if (systemName.contains("Alibaba Cloud Linux") && systemVersion.startsWith("2")) {
      new SharedLibraryLoaderCentos7
    } else if (systemName.contains("Anolis") && systemVersion.startsWith("8")) {
      new SharedLibraryLoaderCentos8
    } else if (systemName.contains("Anolis") && systemVersion.startsWith("7")) {
      new SharedLibraryLoaderCentos7
    } else if (system.contains("tencentos") && system.contains("3.2")) {
      new SharedLibraryLoaderCentos8
    } else if (systemName.contains("Red Hat") && systemVersion.startsWith("8")) {
      new SharedLibraryLoaderCentos8
    } else if (systemName.contains("Red Hat") && systemVersion.startsWith("7")) {
      new SharedLibraryLoaderCentos7
    } else if (systemName.contains("Debian") && systemVersion.startsWith("11")) {
      new SharedLibraryLoaderDebian11
    } else {
      throw new GlutenException(
        "Found unsupported OS! Currently, Gluten's Velox backend" +
          " only supports Ubuntu 20.04/22.04, CentOS 7/8, " +
          "Alibaba Cloud Linux 2/3 & Anolis 7/8, tencentos 3.2, RedHat 7/8, " +
          "Debian 11.")
    }
    loader.loadLib(load)
  }