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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.cluster.dao;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.TimeZone;
import javax.ejb.Local;
import org.apache.log4j.Logger;
import com.cloud.cluster.ClusterInvalidSessionException;
import com.cloud.cluster.ManagementServerHost;
import com.cloud.cluster.ManagementServerHost.State;
import com.cloud.cluster.ManagementServerHostVO;
import com.cloud.utils.DateUtil;
import com.cloud.utils.db.DB;
import com.cloud.utils.db.Filter;
import com.cloud.utils.db.GenericDaoBase;
import com.cloud.utils.db.SearchBuilder;
import com.cloud.utils.db.SearchCriteria;
import com.cloud.utils.db.TransactionLegacy;
import com.cloud.utils.exception.CloudRuntimeException;
@Local(value={ManagementServerHostDao.class})
public class ManagementServerHostDaoImpl extends GenericDaoBase<ManagementServerHostVO, Long> implements ManagementServerHostDao {
private static final Logger s_logger = Logger.getLogger(ManagementServerHostDaoImpl.class);
private final SearchBuilder<ManagementServerHostVO> MsIdSearch;
private final SearchBuilder<ManagementServerHostVO> ActiveSearch;
private final SearchBuilder<ManagementServerHostVO> InactiveSearch;
private final SearchBuilder<ManagementServerHostVO> StateSearch;
@Override
public void invalidateRunSession(long id, long runid) {
TransactionLegacy txn = TransactionLegacy.currentTxn();
PreparedStatement pstmt = null;
try {
pstmt = txn.prepareAutoCloseStatement("update mshost set runid=0, state='Down' where id=? and runid=?");
pstmt.setLong(1, id);
pstmt.setLong(2, runid);
pstmt.executeUpdate();
} catch (SQLException e) {
throw new CloudRuntimeException("DB exception on " + pstmt.toString(), e);
}
}
@Override
public ManagementServerHostVO findByMsid(long msid) {
SearchCriteria<ManagementServerHostVO> sc = MsIdSearch.create();
sc.setParameters("msid", msid);
List<ManagementServerHostVO> l = listIncludingRemovedBy(sc);
if(l != null && l.size() > 0) {
return l.get(0);
}
return null;
}
@Override
@DB
public void update(long id, long runid, String name, String version, String serviceIP, int servicePort, Date lastUpdate) {
TransactionLegacy txn = TransactionLegacy.currentTxn();
PreparedStatement pstmt = null;
try {
txn.start();
pstmt = txn.prepareAutoCloseStatement("update mshost set name=?, version=?, service_ip=?, service_port=?, last_update=?, removed=null, alert_count=0, runid=?, state=? where id=?");
pstmt.setString(1, name);
pstmt.setString(2, version);
pstmt.setString(3, serviceIP);
pstmt.setInt(4, servicePort);
pstmt.setString(5, DateUtil.getDateDisplayString(TimeZone.getTimeZone("GMT"), lastUpdate));
pstmt.setLong(6, runid);
pstmt.setString(7, ManagementServerHost.State.Up.toString());
pstmt.setLong(8, id);
pstmt.executeUpdate();
txn.commit();
} catch(Exception e) {
s_logger.warn("Unexpected exception, ", e);
throw new RuntimeException(e.getMessage(), e);
}
}
@Override
@DB
public boolean remove(Long id) {
TransactionLegacy txn = TransactionLegacy.currentTxn();
try {
txn.start();
ManagementServerHostVO msHost = findById(id);
msHost.setState(ManagementServerHost.State.Down);
super.remove(id);
txn.commit();
return true;
} catch(Exception e) {
s_logger.warn("Unexpected exception, ", e);
throw new RuntimeException(e.getMessage(), e);
}
}
@Override
@DB
public void update(long id, long runid, Date lastUpdate) {
TransactionLegacy txn = TransactionLegacy.currentTxn();
PreparedStatement pstmt = null;
try {
txn.start();
pstmt = txn.prepareAutoCloseStatement("update mshost set last_update=?, removed=null, alert_count=0 where id=? and runid=?");
pstmt.setString(1, DateUtil.getDateDisplayString(TimeZone.getTimeZone("GMT"), lastUpdate));
pstmt.setLong(2, id);
pstmt.setLong(3, runid);
int count = pstmt.executeUpdate();
txn.commit();
if(count < 1) {
throw new CloudRuntimeException("Invalid cluster session detected", new ClusterInvalidSessionException("runid " + runid + " is no longer valid"));
}
} catch(Exception e) {
s_logger.warn("Unexpected exception, ", e);
throw new RuntimeException(e.getMessage(), e);
}
}
@Override
public List<ManagementServerHostVO> getActiveList(Date cutTime) {
SearchCriteria<ManagementServerHostVO> sc = ActiveSearch.create();
sc.setParameters("lastUpdateTime", cutTime);
return listIncludingRemovedBy(sc);
}
@Override
public List<ManagementServerHostVO> getInactiveList(Date cutTime) {
SearchCriteria<ManagementServerHostVO> sc = InactiveSearch.create();
sc.setParameters("lastUpdateTime", cutTime);
return listIncludingRemovedBy(sc);
}
@Override
@DB
public int increaseAlertCount(long id) {
TransactionLegacy txn = TransactionLegacy.currentTxn();
PreparedStatement pstmt = null;
int changedRows = 0;
try {
txn.start();
pstmt = txn.prepareAutoCloseStatement("update mshost set alert_count=alert_count+1 where id=? and alert_count=0");
pstmt.setLong(1, id);
changedRows = pstmt.executeUpdate();
txn.commit();
} catch(Exception e) {
s_logger.warn("Unexpected exception, ", e);
throw new RuntimeException(e.getMessage(), e);
}
return changedRows;
}
protected ManagementServerHostDaoImpl() {
MsIdSearch = createSearchBuilder();
MsIdSearch.and("msid", MsIdSearch.entity().getMsid(), SearchCriteria.Op.EQ);
MsIdSearch.done();
ActiveSearch = createSearchBuilder();
ActiveSearch.and("lastUpdateTime", ActiveSearch.entity().getLastUpdateTime(), SearchCriteria.Op.GT);
ActiveSearch.and("removed", ActiveSearch.entity().getRemoved(), SearchCriteria.Op.NULL);
ActiveSearch.done();
InactiveSearch = createSearchBuilder();
InactiveSearch.and("lastUpdateTime", InactiveSearch.entity().getLastUpdateTime(), SearchCriteria.Op.LTEQ);
InactiveSearch.and("removed", InactiveSearch.entity().getRemoved(), SearchCriteria.Op.NULL);
InactiveSearch.done();
StateSearch = createSearchBuilder();
StateSearch.and("state", StateSearch.entity().getState(), SearchCriteria.Op.IN);
StateSearch.done();
}
@Override
public void update(long id, long runId, State state, Date lastUpdate) {
TransactionLegacy txn = TransactionLegacy.currentTxn();
PreparedStatement pstmt = null;
try {
pstmt = txn.prepareAutoCloseStatement("update mshost set state=?, last_update=? where id=? and runid=?");
pstmt.setString(1, state.toString());
pstmt.setString(2, DateUtil.getDateDisplayString(TimeZone.getTimeZone("GMT"), lastUpdate));
pstmt.setLong(3, id);
pstmt.setLong(4, runId);
int count = pstmt.executeUpdate();
if(count < 1) {
throw new CloudRuntimeException("Invalid cluster session detected", new ClusterInvalidSessionException("runid " + runId + " is no longer valid"));
}
} catch (SQLException e) {
throw new CloudRuntimeException("DB exception on " + pstmt.toString(), e);
}
}
@Override
public List<ManagementServerHostVO> listBy(ManagementServerHost.State...states) {
SearchCriteria<ManagementServerHostVO> sc = StateSearch.create();
sc.setParameters("state", (Object[]) states);
return listBy(sc);
}
@Override
public List<Long> listOrphanMsids() {
List<Long> orphanList = new ArrayList<Long>();
TransactionLegacy txn = TransactionLegacy.currentTxn();
PreparedStatement pstmt = null;
try {
pstmt = txn.prepareAutoCloseStatement(
"select t.mgmt_server_id from (select mgmt_server_id, count(*) as count from host group by mgmt_server_id) as t WHERE t.count > 0 AND t.mgmt_server_id NOT IN (select msid from mshost)");
ResultSet rs = pstmt.executeQuery();
while(rs.next()) {
orphanList.add(rs.getLong(1));
}
} catch (SQLException e) {
throw new CloudRuntimeException("DB exception on " + pstmt.toString(), e);
}
return orphanList;
}
@Override
public ManagementServerHostVO findOneInUpState(Filter filter) {
SearchCriteria<ManagementServerHostVO> sc = StateSearch.create();
sc.setParameters("state", ManagementServerHost.State.Up);
List<ManagementServerHostVO> mshosts = listBy(sc, filter);
if(mshosts != null && mshosts.size() > 0){
return mshosts.get(0);
}
return null;
}
}