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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.upgrade.dao;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.List;
import org.apache.log4j.Logger;
import org.springframework.stereotype.Component;
import com.cloud.upgrade.dao.VersionVO.Step;
import com.cloud.utils.db.DB;
import com.cloud.utils.db.Filter;
import com.cloud.utils.db.GenericDaoBase;
import com.cloud.utils.db.GenericSearchBuilder;
import com.cloud.utils.db.SearchBuilder;
import com.cloud.utils.db.SearchCriteria;
import com.cloud.utils.db.SearchCriteria.Op;
import com.cloud.utils.db.TransactionLegacy;
import com.cloud.utils.exception.CloudRuntimeException;
@Component
@DB()
public class VersionDaoImpl extends GenericDaoBase<VersionVO, Long> implements VersionDao {
private static final Logger s_logger = Logger.getLogger(VersionDaoImpl.class);
final GenericSearchBuilder<VersionVO, String> CurrentVersionSearch;
final SearchBuilder<VersionVO> AllFieldsSearch;
public VersionDaoImpl() {
super();
CurrentVersionSearch = createSearchBuilder(String.class);
CurrentVersionSearch.selectFields(CurrentVersionSearch.entity().getVersion());
CurrentVersionSearch.and("step", CurrentVersionSearch.entity().getStep(), Op.EQ);
CurrentVersionSearch.done();
AllFieldsSearch = createSearchBuilder();
AllFieldsSearch.and("version", AllFieldsSearch.entity().getVersion(), Op.EQ);
AllFieldsSearch.and("step", AllFieldsSearch.entity().getStep(), Op.EQ);
AllFieldsSearch.and("updated", AllFieldsSearch.entity().getUpdated(), Op.EQ);
AllFieldsSearch.done();
}
@Override
public VersionVO findByVersion(final String version, final Step step) {
final SearchCriteria<VersionVO> sc = AllFieldsSearch.create();
sc.setParameters("version", version);
sc.setParameters("step", step);
return findOneBy(sc);
}
@Override
@DB
public String getCurrentVersion() {
try (Connection conn = TransactionLegacy.getStandaloneConnection();) {
s_logger.debug("Checking to see if the database is at a version before it was the version table is created");
try (
PreparedStatement pstmt = conn.prepareStatement("SHOW TABLES LIKE 'version'");
ResultSet rs = pstmt.executeQuery();
) {
if (!rs.next()) {
try (PreparedStatement pstmt_nics = conn.prepareStatement("SHOW TABLES LIKE 'nics'");
ResultSet rs_nics = pstmt_nics.executeQuery();
) {
if (!rs_nics.next()) {
try (PreparedStatement pstmt_domain = conn.prepareStatement("SELECT domain_id FROM account_vlan_map LIMIT 1"); ){
pstmt_domain.executeQuery();
return "2.1.8";
} catch (final SQLException e) {
s_logger.debug("Assuming the exception means domain_id is not there.");
s_logger.debug("No version table and no nics table, returning 2.1.7");
return "2.1.7";
}
} else {
try (PreparedStatement pstmt_static_nat = conn.prepareStatement("SELECT is_static_nat from firewall_rules");
ResultSet rs_static_nat = pstmt_static_nat.executeQuery();){
return "2.2.1";
} catch (final SQLException e) {
s_logger.debug("Assuming the exception means static_nat field doesn't exist in firewall_rules table, returning version 2.2.2");
return "2.2.2";
}
}
}
}
} catch (final SQLException e) {
throw new CloudRuntimeException("Unable to get the current version", e);
}
SearchCriteria<String> sc = CurrentVersionSearch.create();
sc.setParameters("step", Step.Complete);
Filter filter = new Filter(VersionVO.class, "id", false, 0l, 1l);
final List<String> upgradedVersions = customSearch(sc, filter);
if (upgradedVersions.isEmpty()) {
// Check if there are records in Version table
filter = new Filter(VersionVO.class, "id", false, 0l, 1l);
sc = CurrentVersionSearch.create();
final List<String> vers = customSearch(sc, filter);
if (!vers.isEmpty()) {
throw new CloudRuntimeException("Version table contains records for which upgrade wasn't completed");
}
// Use nics table information and is_static_nat field from firewall_rules table to determine version information
s_logger.debug("Version table exists, but it's empty; have to confirm that version is 2.2.2");
try (PreparedStatement pstmt = conn.prepareStatement("SHOW TABLES LIKE 'nics'");
ResultSet rs = pstmt.executeQuery();){
if (!rs.next()) {
throw new CloudRuntimeException("Unable to determine the current version, version table exists and empty, nics table doesn't exist");
} else {
try (PreparedStatement pstmt_static_nat = conn.prepareStatement("SELECT is_static_nat from firewall_rules"); ) {
pstmt_static_nat.executeQuery();
throw new CloudRuntimeException("Unable to determine the current version, version table exists and empty, " +
"nics table doesn't exist, is_static_nat field exists in firewall_rules table");
} catch (final SQLException e) {
s_logger.debug("Assuming the exception means static_nat field doesn't exist in firewall_rules table, returning version 2.2.2");
return "2.2.2";
}
}
} catch (final SQLException e) {
throw new CloudRuntimeException("Unable to determine the current version, version table exists and empty, query for nics table yields SQL exception", e);
}
} else {
return upgradedVersions.get(0);
}
} catch (final SQLException e) {
throw new CloudRuntimeException("Unable to get the current version", e);
}
}
}