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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
// specific language governing permissions and limitations
// under the License.
package com.cloud.storage.dao;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import javax.ejb.Local;
import org.apache.log4j.Logger;
import com.cloud.host.Status;
import com.cloud.storage.StoragePoolHostVO;
import com.cloud.utils.Pair;
import com.cloud.utils.db.GenericDaoBase;
import com.cloud.utils.db.SearchBuilder;
import com.cloud.utils.db.SearchCriteria;
import com.cloud.utils.db.Transaction;
@Local(value = { StoragePoolHostDao.class })
public class StoragePoolHostDaoImpl extends GenericDaoBase<StoragePoolHostVO, Long> implements StoragePoolHostDao {
public static final Logger s_logger = Logger.getLogger(StoragePoolHostDaoImpl.class.getName());
protected final SearchBuilder<StoragePoolHostVO> PoolSearch;
protected final SearchBuilder<StoragePoolHostVO> HostSearch;
protected final SearchBuilder<StoragePoolHostVO> PoolHostSearch;
protected static final String HOST_FOR_POOL_SEARCH = "SELECT * FROM storage_pool_host_ref ph, host h where ph.host_id = h.id and ph.pool_id=? and h.status=? ";
protected static final String STORAGE_POOL_HOST_INFO = "SELECT p.data_center_id, count(ph.host_id) " + " FROM storage_pool p, storage_pool_host_ref ph "
+ " WHERE p.id = ph.pool_id AND p.data_center_id = ? " + " GROUP by p.data_center_id";
protected static final String SHARED_STORAGE_POOL_HOST_INFO = "SELECT p.data_center_id, count(ph.host_id) " + " FROM storage_pool p, storage_pool_host_ref ph "
+ " WHERE p.id = ph.pool_id AND p.data_center_id = ? " + " AND p.pool_type NOT IN ('LVM', 'Filesystem')" + " GROUP by p.data_center_id";
protected static final String DELETE_PRIMARY_RECORDS = "DELETE " + "FROM storage_pool_host_ref " + "WHERE host_id = ?";
public StoragePoolHostDaoImpl() {
PoolSearch = createSearchBuilder();
PoolSearch.and("pool_id", PoolSearch.entity().getPoolId(), SearchCriteria.Op.EQ);
PoolSearch.done();
HostSearch = createSearchBuilder();
HostSearch.and("host_id", HostSearch.entity().getHostId(), SearchCriteria.Op.EQ);
HostSearch.done();
PoolHostSearch = createSearchBuilder();
PoolHostSearch.and("pool_id", PoolHostSearch.entity().getPoolId(), SearchCriteria.Op.EQ);
PoolHostSearch.and("host_id", PoolHostSearch.entity().getHostId(), SearchCriteria.Op.EQ);
PoolHostSearch.done();
}
@Override
public List<StoragePoolHostVO> listByPoolId(long id) {
SearchCriteria<StoragePoolHostVO> sc = PoolSearch.create();
sc.setParameters("pool_id", id);
return listIncludingRemovedBy(sc);
}
@Override
public List<StoragePoolHostVO> listByHostIdIncludingRemoved(long hostId) {
SearchCriteria<StoragePoolHostVO> sc = HostSearch.create();
sc.setParameters("host_id", hostId);
return listIncludingRemovedBy(sc);
}
@Override
public List<StoragePoolHostVO> listByHostId(long hostId) {
SearchCriteria<StoragePoolHostVO> sc = HostSearch.create();
sc.setParameters("host_id", hostId);
return listBy(sc);
}
@Override
public StoragePoolHostVO findByPoolHost(long poolId, long hostId) {
SearchCriteria<StoragePoolHostVO> sc = PoolHostSearch.create();
sc.setParameters("pool_id", poolId);
sc.setParameters("host_id", hostId);
return findOneIncludingRemovedBy(sc);
}
@Override
public List<StoragePoolHostVO> listByHostStatus(long poolId, Status hostStatus) {
Transaction txn = Transaction.currentTxn();
PreparedStatement pstmt = null;
List<StoragePoolHostVO> result = new ArrayList<StoragePoolHostVO>();
ResultSet rs = null;
try {
String sql = HOST_FOR_POOL_SEARCH;
pstmt = txn.prepareStatement(sql);
pstmt.setLong(1, poolId);
pstmt.setString(2, hostStatus.toString());
rs = pstmt.executeQuery();
while (rs.next()) {
// result.add(toEntityBean(rs, false)); TODO: this is buggy in GenericDaoBase for hand constructed queries
long id = rs.getLong(1); // ID column
result.add(findById(id));
}
} catch (Exception e) {
s_logger.warn("Exception: ", e);
} finally {
try {
if (rs != null) {
rs.close();
}
if (pstmt != null) {
pstmt.close();
}
} catch (SQLException e) {
}
}
return result;
}
@Override
public List<Pair<Long, Integer>> getDatacenterStoragePoolHostInfo(long dcId, boolean sharedOnly) {
ArrayList<Pair<Long, Integer>> l = new ArrayList<Pair<Long, Integer>>();
String sql = sharedOnly ? SHARED_STORAGE_POOL_HOST_INFO : STORAGE_POOL_HOST_INFO;
Transaction txn = Transaction.currentTxn();
;
PreparedStatement pstmt = null;
try {
pstmt = txn.prepareAutoCloseStatement(sql);
pstmt.setLong(1, dcId);
ResultSet rs = pstmt.executeQuery();
while (rs.next()) {
l.add(new Pair<Long, Integer>(rs.getLong(1), rs.getInt(2)));
}
} catch (SQLException e) {
} catch (Throwable e) {
}
return l;
}
/**
* This method deletes the primary records from the host
*
* @param hostId
* -- id of the host
*/
@Override
public void deletePrimaryRecordsForHost(long hostId) {
SearchCriteria<StoragePoolHostVO> sc = HostSearch.create();
sc.setParameters("host_id", hostId);
Transaction txn = Transaction.currentTxn();
txn.start();
remove(sc);
txn.commit();
}
@Override
public void deleteStoragePoolHostDetails(long hostId, long poolId) {
SearchCriteria<StoragePoolHostVO> sc = PoolHostSearch.create();
sc.setParameters("host_id", hostId);
sc.setParameters("pool_id", poolId);
Transaction txn = Transaction.currentTxn();
txn.start();
remove(sc);
txn.commit();
}
}