| // |
| // 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.kvm.resource.wrapper; |
| |
| import org.libvirt.Connect; |
| import org.libvirt.Domain; |
| import org.libvirt.DomainInfo.DomainState; |
| import org.libvirt.LibvirtException; |
| |
| import com.cloud.agent.api.Answer; |
| import com.cloud.agent.api.CreateVMSnapshotAnswer; |
| import com.cloud.agent.api.CreateVMSnapshotCommand; |
| import com.cloud.hypervisor.kvm.resource.LibvirtComputingResource; |
| import com.cloud.resource.CommandWrapper; |
| import com.cloud.resource.ResourceWrapper; |
| |
| @ResourceWrapper(handles = CreateVMSnapshotCommand.class) |
| public final class LibvirtCreateVMSnapshotCommandWrapper extends CommandWrapper<CreateVMSnapshotCommand, Answer, LibvirtComputingResource> { |
| |
| |
| @Override |
| public Answer execute(final CreateVMSnapshotCommand cmd, final LibvirtComputingResource libvirtComputingResource) { |
| String vmName = cmd.getVmName(); |
| String vmSnapshotName = cmd.getTarget().getSnapshotName(); |
| |
| Domain dm = null; |
| try { |
| final LibvirtUtilitiesHelper libvirtUtilitiesHelper = libvirtComputingResource.getLibvirtUtilitiesHelper(); |
| Connect conn = libvirtUtilitiesHelper.getConnection(); |
| dm = libvirtComputingResource.getDomain(conn, vmName); |
| |
| if (dm == null) { |
| return new CreateVMSnapshotAnswer(cmd, false, |
| "Create VM Snapshot Failed due to can not find vm: " + vmName); |
| } |
| |
| DomainState domainState = dm.getInfo().state ; |
| if (domainState != DomainState.VIR_DOMAIN_RUNNING) { |
| return new CreateVMSnapshotAnswer(cmd, false, |
| "Create VM Snapshot Failed due to vm is not running: " + vmName + " with domainState = " + domainState); |
| } |
| |
| String vmSnapshotXML = "<domainsnapshot>" + " <name>" + vmSnapshotName + "</name>" |
| + " <memory snapshot='internal' />" + "</domainsnapshot>"; |
| |
| dm.snapshotCreateXML(vmSnapshotXML); |
| |
| return new CreateVMSnapshotAnswer(cmd, cmd.getTarget(), cmd.getVolumeTOs()); |
| } catch (LibvirtException e) { |
| String msg = " Create VM snapshot failed due to " + e.toString(); |
| logger.warn(msg, e); |
| return new CreateVMSnapshotAnswer(cmd, false, msg); |
| } finally { |
| if (dm != null) { |
| try { |
| dm.free(); |
| } catch (LibvirtException l) { |
| logger.trace("Ignoring libvirt error.", l); |
| }; |
| } |
| } |
| } |
| } |