public Task removeDevices()

in src/main/java/com/vmware/vim25/mox/VirtualMachineDeviceManager.java [685:757]
60 lines of code
19 McCabe index (conditional complexity)

    public Task removeDevices(List<VirtualDevice> deviceList, boolean destroyDeviceBacking) throws InvalidName, VmConfigFault, DuplicateName, TaskInProgress, FileFault, InvalidState, ConcurrentAccess, InvalidDatastore, InsufficientResourcesFault, RuntimeFault, RemoteException {
        List<VirtualDeviceConfigSpec> configSpecList = new ArrayList<VirtualDeviceConfigSpec>();

        boolean allDevicesSupportHotRemoval = allSupportHotRemoval(deviceList);
        VirtualMachinePowerState powerState = vm.getRuntime().getPowerState();
        if (!allDevicesSupportHotRemoval && powerState != VirtualMachinePowerState.poweredOff) {
            throw new RuntimeException("Invalid power state: power off the VM first.");
        }

        for (VirtualDevice device : deviceList) {
            try {
                // Empty SCSI controller removal
                // If the device's SCSI controller will get free after device removal
                // then also remove the controller. But only if the VM is powered off.
                if (device instanceof VirtualDisk && powerState == VirtualMachinePowerState.poweredOff) {
                    List<VirtualSCSIController> contollerList = getVirtualDevicesOfType(VirtualSCSIController.class);
                    for (VirtualSCSIController controller : contollerList) {
                        if (controller.key == device.controllerKey) {
                            if (controller.device.length == 1 && controller.device[0] == device.key) {
                                VirtualDeviceConfigSpec controllerSpec = new VirtualDeviceConfigSpec();
                                controllerSpec.operation = VirtualDeviceConfigSpecOperation.remove;
                                controllerSpec.device = controller;
                                configSpecList.add(controllerSpec);
                            }
                            break;
                        }
                    }
                }

                //region Usb controller removal.
                // If the device's SCSI controller will get free after device removal, also remove the controller.
                if (device instanceof VirtualUSB) {
                    //TODO remove duplication of this and above section of code
                    List<VirtualUSBController> contollerList = getVirtualDevicesOfType(VirtualUSBController.class);
                    for (VirtualUSBController controller : contollerList) {
                        if (controller.key == device.controllerKey) {
                            if (controller.device.length == 1 && controller.device[0] == device.key) {
                                VirtualDeviceConfigSpec controllerSpec = new VirtualDeviceConfigSpec();
                                controllerSpec.operation = VirtualDeviceConfigSpecOperation.remove;
                                controllerSpec.device = controller;
                                configSpecList.add(controllerSpec);
                            }
                            break;
                        }
                    }
                    // remove the Usb controller when we want to remove the usb device.
                    continue;
                }

                VirtualDeviceConfigSpec deviceSpec = new VirtualDeviceConfigSpec();
                deviceSpec.operation = VirtualDeviceConfigSpecOperation.remove;
                deviceSpec.device = device;
                if (destroyDeviceBacking) {
                    deviceSpec.fileOperation = VirtualDeviceConfigSpecFileOperation.destroy;
                }

                configSpecList.add(deviceSpec);
            }
            catch (Exception ex) {
                throw new RuntimeException(ex);
            }
        }

        if (configSpecList.size() > 0) {
            VirtualMachineConfigSpec config = new VirtualMachineConfigSpec();
            config.deviceChange = new VirtualDeviceConfigSpec[configSpecList.size()];
            for (int i = 0; i < configSpecList.size(); i++) {
                config.deviceChange[i] = configSpecList.get(i);
            }
            return vm.reconfigVM_Task(config);
        }
        return null;
    }