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// 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
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// KIND, either express or implied. See the License for the
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package com.cloud.vm.snapshot.dao;
import java.util.Date;
import java.util.List;
import javax.ejb.Local;
import org.apache.log4j.Logger;
import org.springframework.stereotype.Component;
import com.cloud.utils.db.GenericDaoBase;
import com.cloud.utils.db.SearchBuilder;
import com.cloud.utils.db.SearchCriteria;
import com.cloud.utils.db.SearchCriteria.Op;
import com.cloud.utils.db.UpdateBuilder;
import com.cloud.vm.snapshot.VMSnapshot;
import com.cloud.vm.snapshot.VMSnapshot.Event;
import com.cloud.vm.snapshot.VMSnapshot.State;
import com.cloud.vm.snapshot.VMSnapshotVO;
@Component
@Local(value = {VMSnapshotDao.class})
public class VMSnapshotDaoImpl extends GenericDaoBase<VMSnapshotVO, Long> implements VMSnapshotDao {
private static final Logger s_logger = Logger.getLogger(VMSnapshotDaoImpl.class);
private final SearchBuilder<VMSnapshotVO> SnapshotSearch;
private final SearchBuilder<VMSnapshotVO> ExpungingSnapshotSearch;
private final SearchBuilder<VMSnapshotVO> SnapshotStatusSearch;
private final SearchBuilder<VMSnapshotVO> AllFieldsSearch;
protected VMSnapshotDaoImpl() {
AllFieldsSearch = createSearchBuilder();
AllFieldsSearch.and("state", AllFieldsSearch.entity().getState(), Op.EQ);
AllFieldsSearch.and("accountId", AllFieldsSearch.entity().getAccountId(), Op.EQ);
AllFieldsSearch.and("vm_id", AllFieldsSearch.entity().getVmId(), Op.EQ);
AllFieldsSearch.and("deviceId", AllFieldsSearch.entity().getVmId(), Op.EQ);
AllFieldsSearch.and("id", AllFieldsSearch.entity().getId(), Op.EQ);
AllFieldsSearch.and("removed", AllFieldsSearch.entity().getState(), Op.EQ);
AllFieldsSearch.and("parent", AllFieldsSearch.entity().getParent(), Op.EQ);
AllFieldsSearch.and("current", AllFieldsSearch.entity().getCurrent(), Op.EQ);
AllFieldsSearch.and("vm_snapshot_type", AllFieldsSearch.entity().getType(), Op.EQ);
AllFieldsSearch.and("updatedCount", AllFieldsSearch.entity().getUpdatedCount(), Op.EQ);
AllFieldsSearch.and("display_name", AllFieldsSearch.entity().getDisplayName(), SearchCriteria.Op.EQ);
AllFieldsSearch.and("name", AllFieldsSearch.entity().getName(), SearchCriteria.Op.EQ);
AllFieldsSearch.done();
SnapshotSearch = createSearchBuilder();
SnapshotSearch.and("vm_id", SnapshotSearch.entity().getVmId(), SearchCriteria.Op.EQ);
SnapshotSearch.done();
ExpungingSnapshotSearch = createSearchBuilder();
ExpungingSnapshotSearch.and("state", ExpungingSnapshotSearch.entity().getState(), SearchCriteria.Op.EQ);
ExpungingSnapshotSearch.and("removed", ExpungingSnapshotSearch.entity().getRemoved(), SearchCriteria.Op.NULL);
ExpungingSnapshotSearch.done();
SnapshotStatusSearch = createSearchBuilder();
SnapshotStatusSearch.and("vm_id", SnapshotStatusSearch.entity().getVmId(), SearchCriteria.Op.EQ);
SnapshotStatusSearch.and("state", SnapshotStatusSearch.entity().getState(), SearchCriteria.Op.IN);
SnapshotStatusSearch.done();
}
@Override
public List<VMSnapshotVO> findByVm(Long vmId) {
SearchCriteria<VMSnapshotVO> sc = SnapshotSearch.create();
sc.setParameters("vm_id", vmId);
return listBy(sc, null);
}
@Override
public List<VMSnapshotVO> listExpungingSnapshot() {
SearchCriteria<VMSnapshotVO> sc = ExpungingSnapshotSearch.create();
sc.setParameters("state", State.Expunging);
return listBy(sc, null);
}
@Override
public List<VMSnapshotVO> listByInstanceId(Long vmId, State... status) {
SearchCriteria<VMSnapshotVO> sc = SnapshotStatusSearch.create();
sc.setParameters("vm_id", vmId);
sc.setParameters("state", (Object[])status);
return listBy(sc, null);
}
@Override
public VMSnapshotVO findCurrentSnapshotByVmId(Long vmId) {
SearchCriteria<VMSnapshotVO> sc = AllFieldsSearch.create();
sc.setParameters("vm_id", vmId);
sc.setParameters("current", 1);
return findOneBy(sc);
}
@Override
public List<VMSnapshotVO> listByParent(Long vmSnapshotId) {
SearchCriteria<VMSnapshotVO> sc = AllFieldsSearch.create();
sc.setParameters("parent", vmSnapshotId);
sc.setParameters("state", State.Ready);
return listBy(sc, null);
}
@Override
public VMSnapshotVO findByName(Long vmId, String name) {
SearchCriteria<VMSnapshotVO> sc = AllFieldsSearch.create();
sc.setParameters("vm_id", vmId);
sc.setParameters("display_name", name);
return null;
}
@Override
public boolean updateState(State currentState, Event event, State nextState, VMSnapshot vo, Object data) {
Long oldUpdated = vo.getUpdatedCount();
Date oldUpdatedTime = vo.getUpdated();
SearchCriteria<VMSnapshotVO> sc = AllFieldsSearch.create();
sc.setParameters("id", vo.getId());
sc.setParameters("state", currentState);
sc.setParameters("updatedCount", vo.getUpdatedCount());
vo.incrUpdatedCount();
UpdateBuilder builder = getUpdateBuilder(vo);
builder.set(vo, "state", nextState);
builder.set(vo, "updated", new Date());
int rows = update((VMSnapshotVO)vo, sc);
if (rows == 0 && s_logger.isDebugEnabled()) {
VMSnapshotVO dbVol = findByIdIncludingRemoved(vo.getId());
if (dbVol != null) {
StringBuilder str = new StringBuilder("Unable to update ").append(vo.toString());
str.append(": DB Data={id=")
.append(dbVol.getId())
.append("; state=")
.append(dbVol.getState())
.append("; updatecount=")
.append(dbVol.getUpdatedCount())
.append(";updatedTime=")
.append(dbVol.getUpdated());
str.append(": New Data={id=")
.append(vo.getId())
.append("; state=")
.append(nextState)
.append("; event=")
.append(event)
.append("; updatecount=")
.append(vo.getUpdatedCount())
.append("; updatedTime=")
.append(vo.getUpdated());
str.append(": stale Data={id=")
.append(vo.getId())
.append("; state=")
.append(currentState)
.append("; event=")
.append(event)
.append("; updatecount=")
.append(oldUpdated)
.append("; updatedTime=")
.append(oldUpdatedTime);
} else {
s_logger.debug("Unable to update VM snapshot: id=" + vo.getId() + ", as there is no such snapshot exists in the database anymore");
}
}
return rows > 0;
}
}