// Copyright 2012 Citrix Systems, Inc. Licensed under the
// Apache License, Version 2.0 (the "License"); you may not use this
// file except in compliance with the License. Citrix Systems, Inc.
// reserves all rights not expressly granted by 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.
//
// Automatically generated by addcopyright.py at 04/03/2012
package com.cloud.ha;
import java.util.List;
import javax.ejb.Local;
import org.apache.log4j.Logger;
import com.cloud.host.HostVO;
import com.cloud.storage.VolumeVO;
import com.cloud.storage.dao.StoragePoolDao;
import com.cloud.storage.dao.VolumeDao;
import com.cloud.utils.component.AdapterBase;
import com.cloud.utils.component.Inject;
import com.cloud.vm.VMInstanceVO;
import com.cloud.vm.VirtualMachine;
@Local(value=FenceBuilder.class)
public class RecreatableFencer extends AdapterBase implements FenceBuilder {
private static final Logger s_logger = Logger.getLogger(RecreatableFencer.class);
@Inject VolumeDao _volsDao;
@Inject StoragePoolDao _poolDao;
protected RecreatableFencer() {
super();
}
@Override
public Boolean fenceOff(VMInstanceVO vm, HostVO host) {
VirtualMachine.Type type = vm.getType();
if (type != VirtualMachine.Type.ConsoleProxy && type != VirtualMachine.Type.DomainRouter && type != VirtualMachine.Type.SecondaryStorageVm) {
if (s_logger.isDebugEnabled()) {
s_logger.debug("Don't know how to fence off " + type);
}
return null;
}
List<VolumeVO> vols = _volsDao.findByInstance(vm.getId());
for (VolumeVO vol : vols) {
if (!vol.isRecreatable()) {
if (s_logger.isDebugEnabled()) {
s_logger.debug("Unable to fence off volumes that are not recreatable: " + vol);
}
return null;
}
if (vol.getPoolType().isShared()) {
if (s_logger.isDebugEnabled()) {
s_logger.debug("Unable to fence off volumes that are shared: " + vol);
}
return null;
}
}
return true;
}
}