| // |
| // 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.LinkedHashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| import com.cloud.utils.exception.CloudRuntimeException; |
| import org.apache.cloudstack.storage.to.VolumeObjectTO; |
| import org.apache.log4j.Logger; |
| |
| import com.cloud.agent.api.Answer; |
| import com.cloud.agent.api.CreateVMSnapshotAnswer; |
| import com.cloud.agent.api.CreateVMSnapshotCommand; |
| import com.cloud.hypervisor.xenserver.resource.CitrixResourceBase; |
| import com.cloud.resource.CommandWrapper; |
| import com.cloud.resource.ResourceWrapper; |
| import com.cloud.vm.snapshot.VMSnapshot; |
| import com.xensource.xenapi.Connection; |
| import com.xensource.xenapi.Pool; |
| import com.xensource.xenapi.SR; |
| import com.xensource.xenapi.Task; |
| import com.xensource.xenapi.Types; |
| import com.xensource.xenapi.Types.VmPowerState; |
| import com.xensource.xenapi.VBD; |
| import com.xensource.xenapi.VDI; |
| import com.xensource.xenapi.VM; |
| |
| @ResourceWrapper(handles = CreateVMSnapshotCommand.class) |
| public final class CitrixCreateVMSnapshotCommandWrapper extends CommandWrapper<CreateVMSnapshotCommand, Answer, CitrixResourceBase> { |
| |
| private static final Logger s_logger = Logger.getLogger(CitrixCreateVMSnapshotCommandWrapper.class); |
| |
| @Override |
| public Answer execute(final CreateVMSnapshotCommand command, final CitrixResourceBase citrixResourceBase) { |
| final String vmName = command.getVmName(); |
| final String vmSnapshotName = command.getTarget().getSnapshotName(); |
| final List<VolumeObjectTO> listVolumeTo = command.getVolumeTOs(); |
| |
| VmPowerState vmState = VmPowerState.HALTED; |
| |
| final String guestOSType = command.getGuestOSType(); |
| final String platformEmulator = command.getPlatformEmulator(); |
| |
| final boolean snapshotMemory = command.getTarget().getType() == VMSnapshot.Type.DiskAndMemory; |
| final long timeout = command.getWait(); |
| |
| final Connection conn = citrixResourceBase.getConnection(); |
| VM vm = null; |
| VM vmSnapshot = null; |
| boolean success = false; |
| |
| try { |
| // check if VM snapshot already exists |
| final Set<VM> vmSnapshots = VM.getByNameLabel(conn, command.getTarget().getSnapshotName()); |
| if (vmSnapshots == null || vmSnapshots.size() > 0) { |
| return new CreateVMSnapshotAnswer(command, command.getTarget(), command.getVolumeTOs()); |
| } |
| |
| // check if there is already a task for this VM snapshot |
| Task task = null; |
| Set<Task> tasks = Task.getByNameLabel(conn, "Async.VM.snapshot"); |
| if(tasks == null) { |
| tasks = new LinkedHashSet<>(); |
| } |
| final Set<Task> tasksByName = Task.getByNameLabel(conn, "Async.VM.checkpoint"); |
| if(tasksByName != null) { |
| tasks.addAll(tasksByName); |
| } |
| for (final Task taskItem : tasks) { |
| if (taskItem.getOtherConfig(conn).containsKey("CS_VM_SNAPSHOT_KEY")) { |
| final String vmSnapshotTaskName = taskItem.getOtherConfig(conn).get("CS_VM_SNAPSHOT_KEY"); |
| if (vmSnapshotTaskName != null && vmSnapshotTaskName.equals(command.getTarget().getSnapshotName())) { |
| task = taskItem; |
| } |
| } |
| } |
| |
| // create a new task if there is no existing task for this VM snapshot |
| if (task == null) { |
| try { |
| vm = citrixResourceBase.getVM(conn, vmName); |
| vmState = vm.getPowerState(conn); |
| } catch (final Exception e) { |
| if (!snapshotMemory) { |
| vm = citrixResourceBase.createWorkingVM(conn, vmName, guestOSType, platformEmulator, listVolumeTo); |
| } |
| } |
| |
| if (vm == null) { |
| return new CreateVMSnapshotAnswer(command, false, "Creating VM Snapshot Failed due to can not find vm: " + vmName); |
| } |
| |
| // call Xenserver API |
| if (!snapshotMemory) { |
| task = vm.snapshotAsync(conn, vmSnapshotName); |
| } else { |
| final Set<VBD> vbds = vm.getVBDs(conn); |
| final Pool pool = Pool.getByUuid(conn, citrixResourceBase.getHost().getPool()); |
| for (final VBD vbd : vbds) { |
| final VBD.Record vbdr = vbd.getRecord(conn); |
| if (vbdr.userdevice.equals("0")) { |
| final VDI vdi = vbdr.VDI; |
| final SR sr = vdi.getSR(conn); |
| // store memory image on the same SR with ROOT volume |
| pool.setSuspendImageSR(conn, sr); |
| } |
| } |
| task = vm.checkpointAsync(conn, vmSnapshotName); |
| } |
| task.addToOtherConfig(conn, "CS_VM_SNAPSHOT_KEY", vmSnapshotName); |
| } |
| |
| citrixResourceBase.waitForTask(conn, task, 1000, timeout * 1000); |
| citrixResourceBase.checkForSuccess(conn, task); |
| final String result = task.getResult(conn); |
| |
| // extract VM snapshot ref from result |
| final String ref = result.substring("<value>".length(), result.length() - "</value>".length()); |
| vmSnapshot = Types.toVM(ref); |
| try { |
| Thread.sleep(5000); |
| } catch (final InterruptedException ex) { |
| |
| } |
| // calculate used capacity for this VM snapshot |
| for (final VolumeObjectTO volumeTo : command.getVolumeTOs()) { |
| try { |
| final long size = citrixResourceBase.getVMSnapshotChainSize(conn, volumeTo, command.getVmName(), vmSnapshotName); |
| volumeTo.setSize(size); |
| } catch (final CloudRuntimeException cre) { |
| } |
| } |
| |
| success = true; |
| return new CreateVMSnapshotAnswer(command, command.getTarget(), command.getVolumeTOs()); |
| } catch (final Exception e) { |
| String msg = ""; |
| if (e instanceof Types.BadAsyncResult) { |
| final String licenseKeyWord = "LICENCE_RESTRICTION"; |
| final Types.BadAsyncResult errorResult = (Types.BadAsyncResult)e; |
| if (errorResult.shortDescription != null && errorResult.shortDescription.contains(licenseKeyWord)) { |
| msg = licenseKeyWord; |
| } |
| } else { |
| msg = e.toString(); |
| } |
| s_logger.warn("Creating VM Snapshot " + command.getTarget().getSnapshotName() + " failed due to: " + msg, e); |
| return new CreateVMSnapshotAnswer(command, false, msg); |
| } finally { |
| try { |
| if (!success) { |
| if (vmSnapshot != null) { |
| s_logger.debug("Delete existing VM Snapshot " + vmSnapshotName + " after making VolumeTO failed"); |
| final Set<VBD> vbds = vmSnapshot.getVBDs(conn); |
| for (final VBD vbd : vbds) { |
| final VBD.Record vbdr = vbd.getRecord(conn); |
| if (vbdr.type == Types.VbdType.DISK) { |
| final VDI vdi = vbdr.VDI; |
| vdi.destroy(conn); |
| } |
| } |
| vmSnapshot.destroy(conn); |
| } |
| } |
| if (vmState == VmPowerState.HALTED) { |
| if (vm != null) { |
| vm.destroy(conn); |
| } |
| } |
| } catch (final Exception e2) { |
| s_logger.error("delete snapshot error due to " + e2.getMessage()); |
| } |
| } |
| } |
| } |