content: //
  // 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.xen610;
  
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  import java.util.Set;
  
  import org.apache.cloudstack.storage.to.VolumeObjectTO;
  
  import com.cloud.agent.api.Answer;
  import com.cloud.agent.api.MigrateWithStorageAnswer;
  import com.cloud.agent.api.MigrateWithStorageCommand;
  import com.cloud.agent.api.to.NicTO;
  import com.cloud.agent.api.to.StorageFilerTO;
  import com.cloud.agent.api.to.VirtualMachineTO;
  import com.cloud.agent.api.to.VolumeTO;
  import com.cloud.hypervisor.xenserver.resource.CitrixHelper;
  import com.cloud.hypervisor.xenserver.resource.XenServer610Resource;
  import com.cloud.hypervisor.xenserver.resource.XsHost;
  import com.cloud.hypervisor.xenserver.resource.XsLocalNetwork;
  import com.cloud.network.Networks.TrafficType;
  import com.cloud.resource.CommandWrapper;
  import com.cloud.resource.ResourceWrapper;
  import com.cloud.utils.Pair;
  import com.cloud.utils.exception.CloudRuntimeException;
  import com.xensource.xenapi.Connection;
  import com.xensource.xenapi.Host;
  import com.xensource.xenapi.Network;
  import com.xensource.xenapi.SR;
  import com.xensource.xenapi.Task;
  import com.xensource.xenapi.Types;
  import com.xensource.xenapi.VDI;
  import com.xensource.xenapi.VIF;
  import com.xensource.xenapi.VM;
  
  @ResourceWrapper(handles =  MigrateWithStorageCommand.class)
  public final class XenServer610MigrateWithStorageCommandWrapper extends CommandWrapper<MigrateWithStorageCommand, Answer, XenServer610Resource> {
  
  
      @Override
      public Answer execute(final MigrateWithStorageCommand command, final XenServer610Resource xenServer610Resource) {
          final Connection connection = xenServer610Resource.getConnection();
          final VirtualMachineTO vmSpec = command.getVirtualMachine();
          final List<Pair<VolumeTO, StorageFilerTO>> volumeToFiler = command.getVolumeToFilerAsList();
          final String vmName = vmSpec.getName();
          Task task = null;
  
          final XsHost xsHost = xenServer610Resource.getHost();
          final String uuid = xsHost.getUuid();
          try {
              xenServer610Resource.prepareISO(connection, vmName, null, null);
  
              // Get the list of networks and recreate VLAN, if required.
              for (final NicTO nicTo : vmSpec.getNics()) {
                  xenServer610Resource.getNetwork(connection, nicTo);
              }
  
              final Map<String, String> other = new HashMap<String, String>();
              other.put("live", "true");
  
              final XsLocalNetwork nativeNetworkForTraffic = xenServer610Resource.getNativeNetworkForTraffic(connection, TrafficType.Storage, null);
              final Network networkForSm = nativeNetworkForTraffic.getNetwork();
  
              // Create the vif map. The  vm stays in the same cluster so we have to pass an empty vif map.
              final Map<VIF, Network> vifMap = new HashMap<VIF, Network>();
              final Map<VDI, SR> vdiMap = new HashMap<VDI, SR>();
  
              for (final Pair<VolumeTO, StorageFilerTO> entry : volumeToFiler) {
                  final StorageFilerTO storageFiler = entry.second();
                  final VolumeTO volume = entry.first();
                  vdiMap.put(xenServer610Resource.getVDIbyUuid(connection, volume.getPath()),
                          xenServer610Resource.getStorageRepository(connection,
                                  CitrixHelper.getSRNameLabel(storageFiler.getUuid(), storageFiler.getType(), storageFiler.getPath())));
              }
  
              // Get the vm to migrate.
              final Set<VM> vms = VM.getByNameLabel(connection, vmSpec.getName());
              final VM vmToMigrate = vms.iterator().next();
  
              // Check migration with storage is possible.
              final Host host = Host.getByUuid(connection, uuid);
              final Map<String, String> token = host.migrateReceive(connection, networkForSm, other);
              task = vmToMigrate.assertCanMigrateAsync(connection, token, true, vdiMap, vifMap, other);
              try {
                  // poll every 1 seconds
                  final long timeout = xenServer610Resource.getMigrateWait() * 1000L;
                  xenServer610Resource.waitForTask(connection, task, 1000, timeout);
                  xenServer610Resource.checkForSuccess(connection, task);
              } catch (final Types.HandleInvalid e) {
                  logger.error("Error while checking if vm " + vmName + " can be migrated to the destination host " + host, e);
                  throw new CloudRuntimeException("Error while checking if vm " + vmName + " can be migrated to the " + "destination host " + host, e);
              }
  
              // Migrate now.
              task = vmToMigrate.migrateSendAsync(connection, token, true, vdiMap, vifMap, other);
              try {
                  // poll every 1 seconds.
                  final long timeout = xenServer610Resource.getMigrateWait() * 1000L;
                  xenServer610Resource.waitForTask(connection, task, 1000, timeout);
                  xenServer610Resource.checkForSuccess(connection, task);
              } catch (final Types.HandleInvalid e) {
                  logger.error("Error while migrating vm " + vmName + " to the destination host " + host, e);
                  throw new CloudRuntimeException("Error while migrating vm " + vmName + " to the destination host " + host, e);
              }
  
              // Volume paths would have changed. Return that information.
              final List<VolumeObjectTO> volumeToList = xenServer610Resource.getUpdatedVolumePathsOfMigratedVm(connection, vmToMigrate, vmSpec.getDisks());
              vmToMigrate.setAffinity(connection, host);
              return new MigrateWithStorageAnswer(command, volumeToList);
          } catch (final Exception e) {
              logger.warn("Catch Exception " + e.getClass().getName() + ". Storage motion failed due to " + e.toString(), e);
              return new MigrateWithStorageAnswer(command, e);
          } finally {
              if (task != null) {
                  try {
                      task.destroy(connection);
                  } catch (final Exception e) {
                      logger.debug("Unable to destroy task " + task.toString() + " on host " + uuid + " due to " + e.toString());
                  }
              }
          }
      }
  }
  