!7

p {

  // Set up constants

  new SS vmMap;

  vmMap.put("00:50:56", "VMware ESX 3");

  vmMap.put("00:0C:29", "VMware ESX 3");

  vmMap.put("00:05:69", "VMware ESX 3");

  vmMap.put("00:03:FF", "Microsoft Hyper-V");

  vmMap.put("00:1C:42", "Parallels Desktop");

  vmMap.put("00:0F:4B", "Virtual Iron 4");

  vmMap.put("00:16:3E", "Xen or Oracle VM");

  vmMap.put("08:00:27", "Sun xVM VirtualBox");

  String[] vmArray = { "Linux KVM", "Linux lguest", "OpenVZ", "Qemu", "Microsoft Virtual PC",

    "VMWare", "linux-vserver", "Xen", "FreeBSD Jail", "OpenVZ Host", "VirtualBox", "Parallels",

    "Linux Containers", "LXC" };

  HardwareAbstractionLayer hw = oshi_hardware();

  // Try well known MAC addresses

  NetworkIF[] nifs = hw.getNetworkIFs();

  boolean isvm = false;

  for (NetworkIF nif : nifs) {

      String mac = nif.getMacaddr().substring(0, 8).toUpperCase();

      if (vmMap.containsKey(mac)) {

          print("On a VM: " + vmMap.get(mac));

          isvm = true;

          break;

      }

  }

  // Try well known models

  if (!isvm) {

      String model = hw.getComputerSystem().getModel();

      print(model);

      for (String vm : vmArray) {

          if (model.contains(vm)) {

              print("On a VM: " + vm);

              isvm = true;

              break;

          }

      }

  }

  if (!isvm) {

      print("Couldn't detect VM");

  }

}