//
// Licensed to the Apache Software Foundation (ASF) under one
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// 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
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package com.cloud.hypervisor.kvm.resource.wrapper;
import java.util.List;
import org.apache.log4j.Logger;
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.StopAnswer;
import com.cloud.agent.api.StopCommand;
import com.cloud.hypervisor.kvm.resource.LibvirtComputingResource;
import com.cloud.hypervisor.kvm.resource.LibvirtVMDef.DiskDef;
import com.cloud.hypervisor.kvm.resource.LibvirtVMDef.InterfaceDef;
import com.cloud.hypervisor.kvm.resource.VifDriver;
import com.cloud.resource.CommandWrapper;
import com.cloud.resource.ResourceWrapper;
@ResourceWrapper(handles = StopCommand.class)
public final class LibvirtStopCommandWrapper extends CommandWrapper<StopCommand, Answer, LibvirtComputingResource> {
private static final Logger s_logger = Logger.getLogger(LibvirtStopCommandWrapper.class);
@Override
public Answer execute(final StopCommand command, final LibvirtComputingResource libvirtComputingResource) {
final String vmName = command.getVmName();
final LibvirtUtilitiesHelper libvirtUtilitiesHelper = libvirtComputingResource.getLibvirtUtilitiesHelper();
if (command.checkBeforeCleanup()) {
try {
final Connect conn = libvirtUtilitiesHelper.getConnectionByVmName(vmName);
final Domain vm = conn.domainLookupByName(command.getVmName());
if (vm != null && vm.getInfo().state == DomainState.VIR_DOMAIN_RUNNING) {
return new StopAnswer(command, "vm is still running on host", false);
}
} catch (final Exception e) {
s_logger.debug("Failed to get vm status in case of checkboforecleanup is true", e);
}
}
try {
final Connect conn = libvirtUtilitiesHelper.getConnectionByVmName(vmName);
final List<DiskDef> disks = libvirtComputingResource.getDisks(conn, vmName);
final List<InterfaceDef> ifaces = libvirtComputingResource.getInterfaces(conn, vmName);
libvirtComputingResource.destroyNetworkRulesForVM(conn, vmName);
final String result = libvirtComputingResource.stopVM(conn, vmName);
if (result == null) {
for (final DiskDef disk : disks) {
libvirtComputingResource.cleanupDisk(disk);
}
for (final InterfaceDef iface : ifaces) {
// We don't know which "traffic type" is associated with
// each interface at this point, so inform all vif drivers
for (final VifDriver vifDriver : libvirtComputingResource.getAllVifDrivers()) {
vifDriver.unplug(iface);
}
}
}
return new StopAnswer(command, result, true);
} catch (final LibvirtException e) {
return new StopAnswer(command, e.getMessage(), false);
}
}
}