Method identifyVM

oshi-demo/src/main/java/oshi/demo/DetectVM.java:86–119

The function attempts to identify which Virtual Machine (VM) based on common VM signatures in MAC address and computer model. @return A string indicating the machine's virtualization info if it can be determined, or an emptry string otherwise.

()

     *         determined, or an emptry string otherwise.
     */
    public static String identifyVM() {
        SystemInfo si = new SystemInfo();
        HardwareAbstractionLayer hw = si.getHardware();
        // Check CPU Vendor
        String vendor = hw.getProcessor().getProcessorIdentifier().getVendor().trim();
        if (vmVendor.containsKey(vendor)) {
            return vmVendor.get(vendor);
        }

        // Try well known MAC addresses
        List<NetworkIF> nifs = hw.getNetworkIFs();
        for (NetworkIF nif : nifs) {
            String mac = nif.getMacaddr().toUpperCase();
            String oui = mac.length() > 7 ? mac.substring(0, 8) : mac;
            if (vmMacAddressProps.containsKey(oui)) {
                return vmMacAddressProps.getProperty(oui);
            }
        }

        // Try well known models
        String model = hw.getComputerSystem().getModel();
        for (String vm : vmModelArray) {
            if (model.contains(vm)) {
                return vm;
            }
        }
        String manufacturer = hw.getComputerSystem().getManufacturer();
        if ("Microsoft Corporation".equals(manufacturer) && "Virtual Machine".equals(model)) {
            return "Microsoft Hyper-V";
        }

        // Couldn't find VM, return empty string
        return "";
    }
}