//
// 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 com.cloud.utils.Pair;
import org.apache.cloudstack.storage.to.VolumeObjectTO;
import org.apache.log4j.Logger;
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.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.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> {
private static final Logger s_logger = Logger.getLogger(XenServer610MigrateWithStorageCommandWrapper.class);
@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, storageFiler.getUuid()));
}
// 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) {
s_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) {
s_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) {
s_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) {
s_logger.debug("Unable to destroy task " + task.toString() + " on host " + uuid + " due to " + e.toString());
}
}
}
}
}