// 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.netapp;
import java.io.IOException;
import java.net.UnknownHostException;
import java.rmi.ServerException;
import java.util.ArrayList;
import java.util.ConcurrentModificationException;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.StringTokenizer;
import javax.ejb.Local;
import javax.naming.ConfigurationException;
import netapp.manage.NaAPIFailedException;
import netapp.manage.NaAuthenticationException;
import netapp.manage.NaElement;
import netapp.manage.NaException;
import netapp.manage.NaProtocolException;
import netapp.manage.NaServer;
import org.apache.log4j.Logger;
import com.cloud.exception.InvalidParameterValueException;
import com.cloud.exception.ResourceAllocationException;
import com.cloud.exception.ResourceInUseException;
import com.cloud.netapp.dao.LunDao;
import com.cloud.netapp.dao.PoolDao;
import com.cloud.netapp.dao.VolumeDao;
import com.cloud.utils.component.Inject;
import com.cloud.utils.db.DB;
import com.cloud.utils.db.Transaction;
import com.cloud.utils.exception.CloudRuntimeException;
@Local(value = { NetappManager.class })
public class NetappManagerImpl implements NetappManager
{
public enum Algorithm { roundrobin,leastfull }
protected String _name;
public static final Logger s_logger = Logger.getLogger(NetappManagerImpl.class.getName());
@Inject public VolumeDao _volumeDao;
@Inject public PoolDao _poolDao;
@Inject public LunDao _lunDao;
private NetappAllocator _netappAllocator = null;
/**
* Default constructor
*/
public NetappManagerImpl(){
}
@Override
public void createPool(String poolName, String algorithm) throws InvalidParameterValueException
{
if(s_logger.isDebugEnabled())
s_logger.debug("Request --> createPool ");
PoolVO pool = null;
validAlgorithm(algorithm);
try {
pool = new PoolVO(poolName, algorithm);
_poolDao.persist(pool);
if(s_logger.isDebugEnabled())
s_logger.debug("Response --> createPool:success");
} catch (CloudRuntimeException cre){
pool = _poolDao.findPool(poolName);
if (pool != null) {
throw new InvalidParameterValueException("Duplicate Pool Name");
} else {
throw cre;
}
}
}
/**
* This method validates the algorithm used for allocation of the volume
* @param algorithm -- algorithm type
* @throws InvalidParameterValueException
*/
private void validAlgorithm(String algorithm) throws InvalidParameterValueException {
//TODO: use enum
if(!algorithm.equalsIgnoreCase("roundrobin") && !algorithm.equalsIgnoreCase("leastfull")){
throw new InvalidParameterValueException("Unknown algorithm " + algorithm);
}
}
/**
* Utility method to get the netapp server object
* @param serverIp -- ip address of netapp box
* @param userName -- username
* @param password -- password
* @return
* @throws UnknownHostException
*/
private NaServer getServer(String serverIp, String userName, String password) throws UnknownHostException {
//Initialize connection to server, and
//request version 1.3 of the API set
NaServer s = new NaServer(serverIp, 1, 3);
s.setStyle(NaServer.STYLE_LOGIN_PASSWORD);
s.setAdminUser(userName, password);
return s;
}
@Override
public void modifyPool(String poolName, String algorithm) throws InvalidParameterValueException
{
validAlgorithm(algorithm);
PoolVO pool = _poolDao.findPool(poolName);
if(pool == null){
throw new InvalidParameterValueException("Cannot find pool " + poolName);
}
validAlgorithm(algorithm);
pool.setAlgorithm(algorithm);
pool.setName(poolName);
_poolDao.update(pool.getId(), pool);
}
@Override
public void deletePool(String poolName) throws InvalidParameterValueException, ResourceInUseException
{
if(s_logger.isDebugEnabled())
s_logger.debug("Request --> deletePool ");
PoolVO pool = _poolDao.findPool(poolName);
if(pool == null){
throw new InvalidParameterValueException("Cannot find pool " + poolName);
}
//check if pool is empty
int volCount = _volumeDao.listVolumes(poolName).size();
if(volCount==0){
_poolDao.remove(pool.getId());
if(s_logger.isDebugEnabled())
s_logger.debug("Request --> deletePool: Success ");
} else {
throw new ResourceInUseException("Cannot delete non-empty pool");
}
}
@Override
public List<PoolVO> listPools(){
return _poolDao.listAll();
}
/**
* This method destroys the volume on netapp filer
* @param ipAddress -- ip address of filer
* @param aggrName -- name of containing aggregate
* @param volName -- name of volume to destroy
* @throws ResourceInUseException
* @throws NaException
* @throws IOException
* @throws NaProtocolException
* @throws NaAPIFailedException
* @throws NaAuthenticationException
*/
@Override
@DB
public void destroyVolumeOnFiler(String ipAddress, String aggrName, String volName) throws ServerException, InvalidParameterValueException, ResourceInUseException{
NaElement xi0;
NaElement xi1;
NetappVolumeVO volume = null;
volume = _volumeDao.findVolume(ipAddress, aggrName, volName);
if(volume==null)
{
s_logger.warn("The volume does not exist in our system");
throw new InvalidParameterValueException("The given tuple:"+ipAddress+","+aggrName+","+volName+" doesn't exist in our system");
}
List<LunVO> lunsOnVol = _lunDao.listLunsByVolId(volume.getId());
if(lunsOnVol!=null && lunsOnVol.size()>0)
{
s_logger.warn("There are luns on the volume");
throw new ResourceInUseException("There are luns on the volume");
}
final Transaction txn = Transaction.currentTxn();
txn.start();
PoolVO pool = _poolDao.findById(volume.getPoolId());
if (pool == null) {
throw new InvalidParameterValueException("Failed to find pool for given volume");
//FIXME: choose a better exception. this is a db integrity exception
}
pool = _poolDao.acquireInLockTable(pool.getId());
if (pool == null) {
throw new ConcurrentModificationException("Failed to acquire lock on pool " + volume.getPoolId());
}
NaServer s = null;
try
{
s = getServer(volume.getIpAddress(), volume.getUsername(), volume.getPassword());
//bring the volume down
xi0 = new NaElement("volume-offline");
xi0.addNewChild("name",volName);
s.invokeElem(xi0);
//now destroy it
xi1 = new NaElement("volume-destroy");
xi1.addNewChild("name",volName);
s.invokeElem(xi1);
//now delete from our records
_volumeDao.remove(volume.getId());
txn.commit();
} catch (UnknownHostException uhe) {
s_logger.warn("Unable to delete volume on filer " , uhe);
throw new ServerException("Unable to delete volume on filer", uhe);
}catch (NaAPIFailedException naf) {
s_logger.warn("Unable to delete volume on filer " , naf);
if( naf.getErrno() == 13040 ){
s_logger.info("Deleting the volume: " + volName);
_volumeDao.remove(volume.getId());
txn.commit();
}
throw new ServerException("Unable to delete volume on filer", naf);
}
catch (NaException nae) {
txn.rollback();
s_logger.warn("Unable to delete volume on filer " , nae);
throw new ServerException("Unable to delete volume on filer", nae);
} catch (IOException ioe) {
txn.rollback();
s_logger.warn("Unable to delete volume on filer " , ioe);
throw new ServerException("Unable to delete volume on filer", ioe);
}
finally
{
if (pool != null) {
_poolDao.releaseFromLockTable(pool.getId());
}
if (s != null)
s.close();
}
}
/**
* This method creates a volume on netapp filer
* @param ipAddress -- ip address of the filer
* @param aggName -- name of aggregate
* @param poolName -- name of pool
* @param volName -- name of volume
* @param volSize -- size of volume to be created
* @param snapshotPolicy -- associated snapshot policy for volume
* @param snapshotReservation -- associated reservation for snapshots
* @param username -- username
* @param password -- password
* @throws UnknownHostException
* @throws InvalidParameterValueException
*/
@Override
@DB
public void createVolumeOnFiler(String ipAddress, String aggName, String poolName, String volName, String volSize, String snapshotPolicy, Integer snapshotReservation, String username, String password) throws UnknownHostException, ServerException, InvalidParameterValueException
{
if(s_logger.isDebugEnabled())
s_logger.debug("Request --> createVolume "+"serverIp:"+ipAddress);
boolean snapPolicy = false;
boolean snapshotRes = false;
boolean volumeCreated = false;
NaServer s = getServer(ipAddress, username, password);
NaElement xi = new NaElement("volume-create");
xi.addNewChild("volume", volName);
xi.addNewChild("containing-aggr-name",aggName);
xi.addNewChild("size",volSize);
NaElement xi1 = new NaElement("snapshot-set-reserve");
if(snapshotReservation!=null)
{
snapshotRes = true;
xi1.addNewChild("percentage",snapshotReservation.toString());
xi1.addNewChild("volume",volName);
}
NaElement xi2 = new NaElement("snapshot-set-schedule");
if(snapshotPolicy!=null)
{
snapPolicy = true;
String weeks = null;
String days = null;
String hours = null;
String whichHours = null;
String minutes = null;
String whichMinutes = null;
StringTokenizer s1 = new StringTokenizer(snapshotPolicy," ");
//count=4: weeks days hours@csi mins@csi
//count=3: weeks days hours@csi
//count=2: weeks days
//count=1: weeks
if(s1.hasMoreTokens())
{
weeks = s1.nextToken();
}
if(weeks!=null && s1.hasMoreTokens())
{
days = s1.nextToken();
}
if(days!=null && s1.hasMoreTokens())
{
String[] hoursArr = s1.nextToken().split("@");
hours = hoursArr[0];
whichHours = hoursArr[1];
}
if(hours!=null && s1.hasMoreTokens())
{
String[] minsArr = s1.nextToken().split("@");
minutes = minsArr[0];
whichMinutes = minsArr[1];
}
if(weeks!=null)
xi2.addNewChild("weeks",weeks);
if(days!=null)
xi2.addNewChild("days",days);
if(hours!=null)
xi2.addNewChild("hours",hours);
if(minutes!=null)
xi2.addNewChild("minutes",minutes);
xi2.addNewChild("volume",volName);
if(whichHours!=null)
xi2.addNewChild("which-hours",whichHours);
if(whichMinutes!=null)
xi2.addNewChild("which-minutes",whichMinutes);
}
Long volumeId = null;
final Transaction txn = Transaction.currentTxn();
txn.start();
NetappVolumeVO volume = null;
volume = _volumeDao.findVolume(ipAddress, aggName, volName);
if(volume != null) {
throw new InvalidParameterValueException("The volume for the given ipAddress/aggregateName/volumeName tuple already exists");
}
PoolVO pool = _poolDao.findPool(poolName);
if (pool == null) {
throw new InvalidParameterValueException("Cannot find pool " + poolName);
}
pool = _poolDao.acquireInLockTable(pool.getId());
if (pool == null) {
s_logger.warn("Failed to acquire lock on pool " + poolName);
throw new ConcurrentModificationException("Failed to acquire lock on pool " + poolName);
}
volume = new NetappVolumeVO(ipAddress, aggName, pool.getId(), volName, volSize, "", 0, username, password,0,pool.getName());
volume = _volumeDao.persist(volume);
volumeId = volume.getId();
try {
s.invokeElem(xi);
volumeCreated = true;
if(snapshotRes)
{
s.invokeElem(xi1);
volume.setSnapshotReservation(snapshotReservation);
_volumeDao.update(volumeId, volume);
}
if(snapPolicy)
{
s.invokeElem(xi2);
volume.setSnapshotPolicy(snapshotPolicy);
_volumeDao.update(volumeId, volume);
}
txn.commit();
} catch (NaException nae) {
//zapi call failed, log and throw e
s_logger.warn("Failed to create volume on the netapp filer:", nae);
txn.rollback();
if(volumeCreated) {
try {
deleteRogueVolume(volName, s);//deletes created volume on filer
} catch (NaException e) {
s_logger.warn("Failed to cleanup created volume whilst rolling back on the netapp filer:", e);
throw new ServerException("Unable to create volume via cloudtools."+"Failed to cleanup created volume on netapp filer whilst rolling back on the cloud db:", e);
} catch (IOException e) {
s_logger.warn("Failed to cleanup created volume whilst rolling back on the netapp filer:", e);
throw new ServerException("Unable to create volume via cloudtools."+"Failed to cleanup created volume on netapp filer whilst rolling back on the cloud db:", e);
}
}
throw new ServerException("Unable to create volume", nae);
} catch (IOException ioe) {
s_logger.warn("Failed to create volume on the netapp filer:", ioe);
txn.rollback();
if(volumeCreated) {
try {
deleteRogueVolume(volName, s);//deletes created volume on filer
} catch (NaException e) {
s_logger.warn("Failed to cleanup created volume whilst rolling back on the netapp filer:", e);
throw new ServerException("Unable to create volume via cloudtools."+"Failed to cleanup created volume on netapp filer whilst rolling back on the cloud db:", e);
} catch (IOException e) {
s_logger.warn("Failed to cleanup created volume whilst rolling back on the netapp filer:", e);
throw new ServerException("Unable to create volume via cloudtools."+"Failed to cleanup created volume on netapp filer whilst rolling back on the cloud db:", e);
}
}
throw new ServerException("Unable to create volume", ioe);
}
finally{
if (s != null)
s.close();
if (pool != null)
_poolDao.releaseFromLockTable(pool.getId());
}
}
/**
* This method is primarily used to cleanup volume created on the netapp filer, when createVol api command fails at snapshot reservation.
* We roll back the db record, but the record on the netapp box still exists. We clean up that record using this helper method.
* @param volName
* @param s -- server reference
* @throws NaException
* @throws IOException
*/
private void deleteRogueVolume(String volName, NaServer s) throws NaException, IOException {
//bring the volume down
NaElement xi0 = new NaElement("volume-offline");
xi0.addNewChild("name",volName);
s.invokeElem(xi0);
//now destroy it
NaElement xi1 = new NaElement("volume-destroy");
xi1.addNewChild("name",volName);
s.invokeElem(xi1);
}
/**
* This method lists all the volumes by pool name
* @param poolName
* @return -- volumes in that pool
*/
@Override
public List<NetappVolumeVO> listVolumesOnFiler(String poolName){
List<NetappVolumeVO> vols = _volumeDao.listVolumesAscending(poolName);
for(NetappVolumeVO vol : vols){
try {
String snapScheduleOnFiler = returnSnapshotSchedule(vol);
vol.setSnapshotPolicy(snapScheduleOnFiler);
} catch (ServerException e) {
s_logger.warn("Error trying to get snapshot schedule for volume"+vol.getVolumeName());
}
}
return vols;
}
/**
* Utility method to return snapshot schedule for a volume
* @param vol -- volume for the snapshot schedule creation
* @return -- the snapshot schedule
* @throws ServerException
*/
private String returnSnapshotSchedule(NetappVolumeVO vol) throws ServerException{
NaElement xi = new NaElement("snapshot-get-schedule");
xi.addNewChild("volume", vol.getVolumeName());
NaServer s = null;
try {
s = getServer(vol.getIpAddress(), vol.getUsername(), vol.getPassword());
NaElement xo = s.invokeElem(xi);
String weeks = xo.getChildContent("weeks");
String days = xo.getChildContent("days");
String hours = xo.getChildContent("hours");
String minutes = xo.getChildContent("minutes");
String whichHours = xo.getChildContent("which-hours");
String whichMinutes = xo.getChildContent("which-minutes");
StringBuilder sB = new StringBuilder();
sB.append(weeks).append(" ").append(days).append(" ").append(hours).append("@").append(whichHours).append(" ").append(minutes).append("@").append(whichMinutes);
return sB.toString();
} catch (NaException nae) {
s_logger.warn("Failed to get volume size ", nae);
throw new ServerException("Failed to get volume size", nae);
} catch (IOException ioe) {
s_logger.warn("Failed to get volume size ", ioe);
throw new ServerException("Failed to get volume size", ioe);
}
finally{
if (s != null)
s.close();
}
}
/**
* This method returns the ascending order list of volumes based on their ids
* @param poolName -- name of pool
* @return -- ascending ordered list of volumes based on ids
*/
@Override
public List<NetappVolumeVO> listVolumesAscending(String poolName){
return _volumeDao.listVolumesAscending(poolName);
}
/**
* This method returns the available size on the volume in terms of bytes
* @param volName -- name of volume
* @param userName -- username
* @param password -- password
* @param serverIp -- ip address of filer
* @throws UnknownHostException
* @return-- available size on the volume in terms of bytes; return -1 if volume is offline
* @throws ServerException
*/
@Override
public long returnAvailableVolumeSize(String volName, String userName, String password, String serverIp) throws ServerException {
long availableSize = 0;
NaElement xi = new NaElement("volume-list-info");
xi.addNewChild("volume", volName);
NaServer s = null;
String volumeState = null;
try {
s = getServer(serverIp, userName, password);
NaElement xo = s.invokeElem(xi);
List volList = xo.getChildByName("volumes").getChildren();
Iterator volIter = volList.iterator();
while(volIter.hasNext()){
NaElement volInfo=(NaElement)volIter.next();
availableSize = volInfo.getChildLongValue("size-available", -1);
volumeState = volInfo.getChildContent("state");
}
if (volumeState != null) {
return volumeState.equalsIgnoreCase("online") ? availableSize : -1; //return -1 if volume is offline
}
else {
//catch all
//volume state unreported
return -1; // as good as volume offline
}
} catch (NaException nae) {
s_logger.warn("Failed to get volume size ", nae);
throw new ServerException("Failed to get volume size", nae);
} catch (IOException ioe) {
s_logger.warn("Failed to get volume size ", ioe);
throw new ServerException("Failed to get volume size", ioe);
}
finally{
if (s != null)
s.close();
}
}
/**
* This method creates a lun on the netapp filer
* @param poolName -- name of the pool
* @param lunSize -- size of the lun to be created
* @return -- lun path
* @throws IOException
* @throws ResourceAllocationException
* @throws NaException
*/
@Override
@DB
public String[] createLunOnFiler(String poolName, Long lunSize) throws ServerException, InvalidParameterValueException, ResourceAllocationException {
String[] result = new String[3];
StringBuilder lunName = new StringBuilder("lun-");
LunVO lun = null;
final Transaction txn = Transaction.currentTxn();
txn.start();
PoolVO pool = _poolDao.findPool(poolName);
if(pool == null){
throw new InvalidParameterValueException("Cannot find pool " + poolName);
}
if (lunSize <= 0) {
throw new InvalidParameterValueException("Please specify a valid lun size in Gb");
}
String algorithm = pool.getAlgorithm();
NetappVolumeVO selectedVol = null;
//sanity check
int numVolsInPool = _volumeDao.listVolumes(poolName).size();
if (numVolsInPool == 0)
{
throw new InvalidParameterValueException("No volumes exist in the given pool");
}
pool = _poolDao.acquireInLockTable(pool.getId());
if (pool == null) {
s_logger.warn("Failed to acquire lock on the pool " + poolName);
return result;
}
NaServer s = null;
try
{
if(algorithm == null || algorithm.equals(Algorithm.roundrobin.toString()))
{
selectedVol = _netappAllocator.chooseVolumeFromPool(poolName, lunSize);
}
else if(algorithm.equals(Algorithm.leastfull.toString()))
{
selectedVol = _netappAllocator.chooseLeastFullVolumeFromPool(poolName, lunSize);
}
if(selectedVol == null)
{
throw new ServerException("Could not find a suitable volume to create lun on");
}
if(s_logger.isDebugEnabled())
s_logger.debug("Request --> createLun "+"serverIp:"+selectedVol.getIpAddress());
StringBuilder exportPath = new StringBuilder("/vol/");
exportPath.append(selectedVol.getVolumeName());
exportPath.append("/");
lun = new LunVO(exportPath.toString(), selectedVol.getId(), lunSize, "","");
lun = _lunDao.persist(lun);
//Lun id created: 6 digits right justified eg. 000045
String lunIdStr = lun.getId().toString();
String zeroStr = "000000";
int length = lunIdStr.length();
int offset = 6-length;
StringBuilder lunIdOnPath = new StringBuilder();
lunIdOnPath.append(zeroStr.substring(0, offset));
lunIdOnPath.append(lunIdStr);
exportPath.append("lun-").append(lunIdOnPath.toString());
lunName.append(lunIdOnPath.toString());
//update lun name
lun.setLunName(lunName.toString());
_lunDao.update(lun.getId(), lun);
NaElement xi;
NaElement xi1;
long lSizeBytes = 1L*lunSize*1024*1024*1024; //This prevents integer overflow
Long lunSizeBytes = new Long(lSizeBytes);
s = getServer(selectedVol.getIpAddress(), selectedVol.getUsername(),selectedVol.getPassword());
//create lun
xi = new NaElement("lun-create-by-size");
xi.addNewChild("ostype","linux");
xi.addNewChild("path",exportPath.toString());
xi.addNewChild("size", (lunSizeBytes.toString()));
s.invokeElem(xi);
try
{
//now create an igroup
xi1 = new NaElement("igroup-create");
xi1.addNewChild("initiator-group-name", lunName .toString());
xi1.addNewChild("initiator-group-type", "iscsi");
xi1.addNewChild("os-type", "linux");
s.invokeElem(xi1);
}catch(NaAPIFailedException e)
{
if(e.getErrno() == 9004)
{
//igroup already exists hence no error
s_logger.warn("Igroup already exists");
}
}
//get target iqn
NaElement xi4 = new NaElement("iscsi-node-get-name");
NaElement xo = s.invokeElem(xi4);
String iqn = xo.getChildContent("node-name");
lun.setTargetIqn(iqn);
_lunDao.update(lun.getId(), lun);
//create lun mapping
//now map the lun to the igroup
NaElement xi3 = new NaElement("lun-map");
xi3.addNewChild("force", "true");
xi3.addNewChild("initiator-group", lunName.toString());
xi3.addNewChild("path", lun.getPath() + lun.getLunName());
xi3.addNewChild("lun-id", lunIdStr);
s.invokeElem(xi3);
txn.commit();
//set the result
result[0] = lunName.toString();//lunname
result[1] = iqn;//iqn
result[2] = selectedVol.getIpAddress();
return result;
}
catch (NaAPIFailedException naf)
{
if(naf.getErrno() == 9023){ //lun is already mapped to this group
result[0] = lunName.toString();//lunname;
result[1] = lun.getTargetIqn();//iqn
result[2] = selectedVol.getIpAddress();
return result;
}
if(naf.getErrno() == 9024){ //another lun mapped at this group
result[0] = lunName.toString();//lunname;
result[1] = lun.getTargetIqn();//iqn
result[2] = selectedVol.getIpAddress();
return result;
}
}
catch (NaException nae)
{
txn.rollback();
throw new ServerException("Unable to create LUN", nae);
}
catch (IOException ioe)
{
txn.rollback();
throw new ServerException("Unable to create LUN", ioe);
}
finally
{
if (pool != null) {
_poolDao.releaseFromLockTable(pool.getId());
}
if (s != null) {
s.close();
}
}
return result;
}
/**
* This method destroys a lun on the netapp filer
* @param lunName -- name of the lun to be destroyed
*/
@Override
@DB
public void destroyLunOnFiler(String lunName) throws InvalidParameterValueException, ServerException{
final Transaction txn = Transaction.currentTxn();
txn.start();
LunVO lun = _lunDao.findByName(lunName);
if(lun == null)
throw new InvalidParameterValueException("Cannot find lun");
NetappVolumeVO vol = _volumeDao.acquireInLockTable(lun.getVolumeId());
if (vol == null) {
s_logger.warn("Failed to lock volume id= " + lun.getVolumeId());
return;
}
NaServer s = null;
try {
s = getServer(vol.getIpAddress(), vol.getUsername(), vol.getPassword());
if(s_logger.isDebugEnabled())
s_logger.debug("Request --> destroyLun "+":serverIp:"+vol.getIpAddress());
try {
//Unmap lun
NaElement xi2 = new NaElement("lun-unmap");
xi2.addNewChild("initiator-group", lunName);
xi2.addNewChild("path", lun.getPath()+lun.getLunName());
s.invokeElem(xi2);
} catch (NaAPIFailedException naf) {
if(naf.getErrno()==9016)
s_logger.warn("no map exists excpn 9016 caught in deletelun, continuing with delete");
}
//destroy lun
NaElement xi = new NaElement("lun-destroy");
xi.addNewChild("force","true");
xi.addNewChild("path", lun.getPath()+lun.getLunName());
s.invokeElem(xi);
//destroy igroup
NaElement xi1 = new NaElement("igroup-destroy");
//xi1.addNewChild("force","true");
xi1.addNewChild("initiator-group-name",lunName);
s.invokeElem(xi1);
_lunDao.remove(lun.getId());
txn.commit();
} catch(UnknownHostException uhe) {
txn.rollback();
s_logger.warn("Failed to delete lun", uhe);
throw new ServerException("Failed to delete lun", uhe);
} catch ( IOException ioe) {
txn.rollback();
s_logger.warn("Failed to delete lun", ioe);
throw new ServerException("Failed to delete lun", ioe);
}catch (NaAPIFailedException naf) {
if(naf.getErrno() == 9017){//no such group exists excpn
s_logger.warn("no such group exists excpn 9017 caught in deletelun, continuing with delete");
_lunDao.remove(lun.getId());
txn.commit();
}else if(naf.getErrno() == 9029){//LUN maps for this initiator group exist
s_logger.warn("LUN maps for this initiator group exist errno 9029 caught in deletelun, continuing with delete");
_lunDao.remove(lun.getId());
txn.commit();
}else{
txn.rollback();
s_logger.warn("Failed to delete lun", naf);
throw new ServerException("Failed to delete lun", naf);
}
}
catch (NaException nae) {
txn.rollback();
s_logger.warn("Failed to delete lun", nae);
throw new ServerException("Failed to delete lun", nae);
}
finally{
if (vol != null) {
_volumeDao.releaseFromLockTable(vol.getId());
}
if (s != null)
s.close();
}
}
/**
* This method lists the luns on the netapp filer
* @param volId -- id of the containing volume
* @return -- list of netapp luns
* @throws NaException
* @throws IOException
*/
@Override
public List<LunVO> listLunsOnFiler(String poolName)
{
if(s_logger.isDebugEnabled())
s_logger.debug("Request --> listLunsOnFiler ");
List<LunVO> luns = new ArrayList<LunVO>();
List<NetappVolumeVO> vols = _volumeDao.listVolumes(poolName);
for(NetappVolumeVO vol : vols)
{
luns.addAll(_lunDao.listLunsByVolId(vol.getId()));
}
if(s_logger.isDebugEnabled())
s_logger.debug("Response --> listLunsOnFiler:success");
return luns;
}
/**
* This method disassociates a lun from the igroup on the filer
* @param iGroup -- igroup name
* @param lunName -- lun name
*/
@Override
public void disassociateLun(String iGroup, String lunName) throws ServerException, InvalidParameterValueException
{
NaElement xi;
LunVO lun = _lunDao.findByName(lunName);
if(lun == null)
throw new InvalidParameterValueException("Cannot find LUN " + lunName);
NetappVolumeVO vol = _volumeDao.findById(lun.getVolumeId());
NaServer s = null;
try {
s = getServer(vol.getIpAddress(), vol.getUsername(), vol.getPassword());
if(s_logger.isDebugEnabled())
s_logger.debug("Request --> disassociateLun "+":serverIp:"+vol.getIpAddress());
xi = new NaElement("igroup-remove");
xi.addNewChild("force", "true");
xi.addNewChild("initiator", iGroup);
xi.addNewChild("initiator-group-name", lunName);
s.invokeElem(xi);
} catch(UnknownHostException uhe) {
throw new ServerException("Failed to disassociate lun", uhe);
} catch ( IOException ioe) {
throw new ServerException("Failed to disassociate lun", ioe);
} catch (NaException nae) {
throw new ServerException("Failed to disassociate lun", nae);
} finally{
if (s != null)
s.close();
}
}
/**
* This method associates a lun to a particular igroup
* @param iqn
* @param iGroup
* @param lunName
*/
@Override
public String[] associateLun(String guestIqn, String lunName) throws ServerException, InvalidParameterValueException
{
NaElement xi2;
//get lun id from path
String[] splitLunName = lunName.split("-");
String[] returnVal = new String[3];
if(splitLunName.length != 2)
throw new InvalidParameterValueException("The lun id is malformed");
String lunIdStr = splitLunName[1];
Long lId = new Long(lunIdStr);
LunVO lun = _lunDao.findById(lId);
if(lun == null)
throw new InvalidParameterValueException("Cannot find LUN " + lunName);
NetappVolumeVO vol = _volumeDao.findById(lun.getVolumeId());
//assert(vol != null);
returnVal[0] = lunIdStr;
returnVal[1] = lun.getTargetIqn();
returnVal[2] = vol.getIpAddress();
NaServer s = null;
try
{
s = getServer(vol.getIpAddress(), vol.getUsername(), vol.getPassword());
if(s_logger.isDebugEnabled())
s_logger.debug("Request --> associateLun "+":serverIp:"+vol.getIpAddress());
//add iqn to the group
xi2 = new NaElement("igroup-add");
xi2.addNewChild("force", "true");
xi2.addNewChild("initiator", guestIqn);
xi2.addNewChild("initiator-group-name", lunName);
s.invokeElem(xi2);
return returnVal;
} catch (UnknownHostException uhe) {
s_logger.warn("Unable to associate LUN " , uhe);
throw new ServerException("Unable to associate LUN", uhe);
}catch (NaAPIFailedException naf){
if(naf.getErrno() == 9008){ //initiator group already contains node
return returnVal;
}
s_logger.warn("Unable to associate LUN " , naf);
throw new ServerException("Unable to associate LUN", naf);
}
catch (NaException nae) {
s_logger.warn("Unable to associate LUN " , nae);
throw new ServerException("Unable to associate LUN", nae);
} catch (IOException ioe) {
s_logger.warn("Unable to associate LUN " , ioe);
throw new ServerException("Unable to associate LUN", ioe);
}
finally{
if (s != null)
s.close();
}
}
@Override
public boolean configure(String name, Map<String, Object> params)
throws ConfigurationException {
_name = name;
_netappAllocator = new NetappDefaultAllocatorImpl( this );
return true;
}
@Override
public String getName() {
return _name;
}
@Override
public boolean start() {
return true;
}
@Override
public boolean stop() {
return true;
}
}