| // |
| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF 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 com.cloud.hypervisor.xenserver.resource.wrapper.xenbase; |
| |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.apache.cloudstack.storage.to.VolumeObjectTO; |
| import org.apache.log4j.Logger; |
| |
| import com.cloud.agent.api.Answer; |
| import com.cloud.agent.api.RevertToVMSnapshotAnswer; |
| import com.cloud.agent.api.RevertToVMSnapshotCommand; |
| import com.cloud.hypervisor.xenserver.resource.CitrixResourceBase; |
| import com.cloud.resource.CommandWrapper; |
| import com.cloud.resource.ResourceWrapper; |
| import com.cloud.vm.VirtualMachine.PowerState; |
| import com.cloud.vm.snapshot.VMSnapshot; |
| import com.xensource.xenapi.Connection; |
| import com.xensource.xenapi.Types; |
| import com.xensource.xenapi.VBD; |
| import com.xensource.xenapi.VDI; |
| import com.xensource.xenapi.VM; |
| |
| @ResourceWrapper(handles = RevertToVMSnapshotCommand.class) |
| public final class CitrixRevertToVMSnapshotCommandWrapper extends CommandWrapper<RevertToVMSnapshotCommand, Answer, CitrixResourceBase> { |
| |
| private static final Logger s_logger = Logger.getLogger(CitrixRevertToVMSnapshotCommandWrapper.class); |
| |
| @Override |
| public Answer execute(final RevertToVMSnapshotCommand command, final CitrixResourceBase citrixResourceBase) { |
| final String vmName = command.getVmName(); |
| final List<VolumeObjectTO> listVolumeTo = command.getVolumeTOs(); |
| final VMSnapshot.Type vmSnapshotType = command.getTarget().getType(); |
| final Boolean snapshotMemory = vmSnapshotType == VMSnapshot.Type.DiskAndMemory; |
| final Connection conn = citrixResourceBase.getConnection(); |
| PowerState vmState = null; |
| VM vm = null; |
| try { |
| |
| final Set<VM> vmSnapshots = VM.getByNameLabel(conn, command.getTarget().getSnapshotName()); |
| if (vmSnapshots == null || vmSnapshots.size() == 0) { |
| return new RevertToVMSnapshotAnswer(command, false, "Cannot find vmSnapshot with name: " + command.getTarget().getSnapshotName()); |
| } |
| |
| final VM vmSnapshot = vmSnapshots.iterator().next(); |
| |
| // find target VM or creating a work VM |
| try { |
| vm = citrixResourceBase.getVM(conn, vmName); |
| } catch (final Exception e) { |
| vm = citrixResourceBase.createWorkingVM(conn, vmName, command.getGuestOSType(), command.getPlatformEmulator(), listVolumeTo); |
| } |
| |
| if (vm == null) { |
| return new RevertToVMSnapshotAnswer(command, false, "Revert to VM Snapshot Failed due to can not find vm: " + vmName); |
| } |
| |
| // call plugin to execute revert |
| citrixResourceBase.revertToSnapshot(conn, vmSnapshot, vmName, vm.getUuid(conn), snapshotMemory, citrixResourceBase.getHost().getUuid()); |
| vm = citrixResourceBase.getVM(conn, vmName); |
| final Set<VBD> vbds = vm.getVBDs(conn); |
| final Map<String, VDI> vdiMap = new HashMap<String, VDI>(); |
| // get vdi:vbdr to a map |
| for (final VBD vbd : vbds) { |
| final VBD.Record vbdr = vbd.getRecord(conn); |
| if (vbdr.type == Types.VbdType.DISK) { |
| final VDI vdi = vbdr.VDI; |
| vdiMap.put(vbdr.userdevice, vdi); |
| } |
| } |
| |
| if (!snapshotMemory) { |
| vm.destroy(conn); |
| vmState = PowerState.PowerOff; |
| } else { |
| vmState = PowerState.PowerOn; |
| } |
| |
| // after revert, VM's volumes path have been changed, need to report to manager |
| for (final VolumeObjectTO volumeTo : listVolumeTo) { |
| final Long deviceId = volumeTo.getDeviceId(); |
| final VDI vdi = vdiMap.get(deviceId.toString()); |
| volumeTo.setPath(vdi.getUuid(conn)); |
| } |
| |
| return new RevertToVMSnapshotAnswer(command, listVolumeTo, vmState); |
| } catch (final Exception e) { |
| s_logger.error("revert vm " + vmName + " to snapshot " + command.getTarget().getSnapshotName() + " failed due to " + e.getMessage()); |
| return new RevertToVMSnapshotAnswer(command, false, e.getMessage()); |
| } |
| } |
| } |