| /* |
| * Licensed to jclouds, Inc. (jclouds) under one or more |
| * contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. jclouds licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.jclouds.virtualbox.functions; |
| |
| import javax.annotation.Resource; |
| import javax.inject.Named; |
| import javax.inject.Singleton; |
| |
| import org.jclouds.compute.reference.ComputeServiceConstants; |
| import org.jclouds.logging.Logger; |
| import org.virtualbox_4_1.IMachine; |
| import org.virtualbox_4_1.ISession; |
| import org.virtualbox_4_1.LockType; |
| import org.virtualbox_4_1.VBoxException; |
| import org.virtualbox_4_1.VirtualBoxManager; |
| |
| import com.google.common.base.Function; |
| import com.google.common.base.Supplier; |
| import com.google.inject.Inject; |
| |
| @Singleton |
| public class MutableMachine implements Function<String, IMachine> { |
| |
| @Resource |
| @Named(ComputeServiceConstants.COMPUTE_LOGGER) |
| protected Logger logger = Logger.NULL; |
| |
| private final Supplier<VirtualBoxManager> manager; |
| private final LockType lockType; |
| |
| |
| @Inject |
| public MutableMachine(Supplier<VirtualBoxManager> manager, |
| LockType lockType) { |
| this.manager = manager; |
| this.lockType = lockType; |
| } |
| |
| @Override |
| public IMachine apply(String machineId) { |
| return lockSessionOnMachineAndReturn(manager.get(), lockType, machineId); |
| } |
| |
| /** |
| * Locks the machine and executes the given function using the current session. |
| * Since the machine is locked it is possible to perform some modifications to the IMachine. |
| * <p/> |
| * Unlocks the machine before returning. |
| * |
| * @param manager the VirtualBoxManager |
| * @param type the kind of lock to use when initially locking the machine. |
| * @param machineId the id of the machine |
| * @return the result from applying the function to the session. |
| */ |
| public static IMachine lockSessionOnMachineAndReturn(VirtualBoxManager manager, LockType type, String machineId) { |
| try { |
| ISession session = manager.getSessionObject(); |
| IMachine immutableMachine = manager.getVBox().findMachine(machineId); |
| immutableMachine.lockMachine(session, type); |
| return immutableMachine; |
| } catch (VBoxException e) { |
| throw new RuntimeException(String.format("error locking %s with %s lock: %s", machineId, |
| type, e.getMessage()), e); |
| } |
| } |
| |
| |
| } |