// 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.storage;
import java.net.URI;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import javax.ejb.Local;
import javax.naming.ConfigurationException;
import org.apache.log4j.Logger;
import com.cloud.agent.AgentManager;
import com.cloud.agent.api.Answer;
import com.cloud.agent.api.PrepareOCFS2NodesCommand;
import com.cloud.dc.ClusterDetailsDao;
import com.cloud.dc.ClusterVO;
import com.cloud.dc.dao.ClusterDao;
import com.cloud.host.Host;
import com.cloud.host.HostVO;
import com.cloud.host.dao.HostDao;
import com.cloud.hypervisor.Hypervisor.HypervisorType;
import com.cloud.resource.ResourceListener;
import com.cloud.resource.ResourceManager;
import com.cloud.resource.ServerResource;
import com.cloud.storage.Storage.StoragePoolType;
import com.cloud.storage.dao.StoragePoolDao;
import com.cloud.storage.dao.StoragePoolHostDao;
import com.cloud.utils.Ternary;
import com.cloud.utils.component.Inject;
import com.cloud.utils.db.SearchCriteria.Op;
import com.cloud.utils.db.SearchCriteria2;
import com.cloud.utils.db.SearchCriteriaService;
import com.cloud.utils.exception.CloudRuntimeException;
@Local(value ={OCFS2Manager.class})
public class OCFS2ManagerImpl implements OCFS2Manager, ResourceListener {
String _name;
private static final Logger s_logger = Logger.getLogger(OCFS2ManagerImpl.class);
@Inject ClusterDetailsDao _clusterDetailsDao;
@Inject AgentManager _agentMgr;
@Inject HostDao _hostDao;
@Inject ClusterDao _clusterDao;
@Inject ResourceManager _resourceMgr;
@Inject StoragePoolHostDao _poolHostDao;
@Inject StoragePoolDao _poolDao;
@Override
public boolean configure(String name, Map<String, Object> params) throws ConfigurationException {
_name = name;
return true;
}
@Override
public boolean start() {
_resourceMgr.registerResourceEvent(ResourceListener.EVENT_DELETE_HOST_AFTER, this);
return true;
}
@Override
public boolean stop() {
_resourceMgr.unregisterResourceEvent(this);
return true;
}
@Override
public String getName() {
return _name;
}
private List<Ternary<Integer, String, String>> marshalNodes(List<HostVO> hosts) {
Integer i = 0;
List<Ternary<Integer, String, String>> lst = new ArrayList<Ternary<Integer, String, String>>();
for (HostVO h : hosts) {
/**
* Don't show "node" in node name otherwise OVM's utils/config_o2cb.sh will be going crazy
*/
String nodeName = "ovm_" + h.getPrivateIpAddress().replace(".", "_");
Ternary<Integer, String, String> node = new Ternary<Integer, String, String>(i, h.getPrivateIpAddress(), nodeName);
lst.add(node);
i ++;
}
return lst;
}
private boolean prepareNodes(String clusterName, List<HostVO> hosts) {
PrepareOCFS2NodesCommand cmd = new PrepareOCFS2NodesCommand(clusterName, marshalNodes(hosts));
for (HostVO h : hosts) {
Answer ans = _agentMgr.easySend(h.getId(), cmd);
if (ans == null) {
s_logger.debug("Host " + h.getId() + " is not in UP state, skip preparing OCFS2 node on it");
continue;
}
if (!ans.getResult()) {
s_logger.warn("PrepareOCFS2NodesCommand failed on host " + h.getId() + " " + ans.getDetails());
return false;
}
}
return true;
}
private String getClusterName(Long clusterId) {
ClusterVO cluster = _clusterDao.findById(clusterId);
if (cluster == null) {
throw new CloudRuntimeException("Cannot get cluster for id " + clusterId);
}
String clusterName = "OvmCluster" + cluster.getId();
return clusterName;
}
@Override
public boolean prepareNodes(List<HostVO> hosts, StoragePool pool) {
if (pool.getPoolType() != StoragePoolType.OCFS2) {
throw new CloudRuntimeException("None OCFS2 storage pool is getting into OCFS2 manager!");
}
return prepareNodes(getClusterName(pool.getClusterId()), hosts);
}
@Override
public boolean prepareNodes(Long clusterId) {
ClusterVO cluster = _clusterDao.findById(clusterId);
if (cluster == null) {
throw new CloudRuntimeException("Cannot find cluster for ID " + clusterId);
}
SearchCriteriaService<HostVO, HostVO> sc = SearchCriteria2.create(HostVO.class);
sc.addAnd(sc.getEntity().getClusterId(), Op.EQ, clusterId);
sc.addAnd(sc.getEntity().getPodId(), Op.EQ, cluster.getPodId());
sc.addAnd(sc.getEntity().getDataCenterId(), Op.EQ, cluster.getDataCenterId());
sc.addAnd(sc.getEntity().getType(), Op.EQ, Host.Type.Routing);
List<HostVO> hosts = sc.list();
if (hosts.isEmpty()) {
s_logger.debug("There is no host in cluster " + clusterId + ", no need to prepare OCFS2 nodes");
return true;
}
return prepareNodes(getClusterName(clusterId), hosts);
}
@Override
public void processDiscoverEventBefore(Long dcid, Long podId, Long clusterId, URI uri, String username, String password, List<String> hostTags) {
// TODO Auto-generated method stub
}
@Override
public void processDiscoverEventAfter(Map<? extends ServerResource, Map<String, String>> resources) {
// TODO Auto-generated method stub
}
@Override
public void processDeleteHostEventBefore(HostVO host) {
// TODO Auto-generated method stub
}
@Override
public void processDeletHostEventAfter(HostVO host) {
String errMsg = String.format("Prepare OCFS2 nodes failed after delete host %1$s (zone:%2$s, pod:%3$s, cluster:%4$s", host.getId(), host.getDataCenterId(), host.getPodId(), host.getClusterId());
if (host.getHypervisorType() != HypervisorType.Ovm) {
return;
}
boolean hasOcfs2 = false;
List<StoragePoolHostVO> poolRefs = _poolHostDao.listByHostId(host.getId());
for (StoragePoolHostVO poolRef : poolRefs) {
StoragePoolVO pool = _poolDao.findById(poolRef.getPoolId());
if (pool.getPoolType() == StoragePoolType.OCFS2) {
hasOcfs2 = true;
break;
}
}
if (hasOcfs2) {
try {
if (!prepareNodes(host.getClusterId())) {
s_logger.warn(errMsg);
}
} catch (Exception e) {
s_logger.error(errMsg, e);
}
}
}
@Override
public void processCancelMaintenaceEventBefore(Long hostId) {
// TODO Auto-generated method stub
}
@Override
public void processCancelMaintenaceEventAfter(Long hostId) {
// TODO Auto-generated method stub
}
@Override
public void processPrepareMaintenaceEventBefore(Long hostId) {
// TODO Auto-generated method stub
}
@Override
public void processPrepareMaintenaceEventAfter(Long hostId) {
// TODO Auto-generated method stub
}
}