!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");
  }
}