monasca-api/java/src/main/java/monasca/api/infrastructure/persistence/vertica/AlarmStateHistoryVerticaRep...

124 lines
4.8 KiB
Java

/*
* Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
*
* Licensed 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 monasca.api.infrastructure.persistence.vertica;
import java.sql.Timestamp;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import javax.annotation.Nullable;
import javax.inject.Inject;
import javax.inject.Named;
import org.joda.time.DateTime;
import org.joda.time.format.DateTimeFormatter;
import org.joda.time.format.ISODateTimeFormat;
import org.skife.jdbi.v2.DBI;
import org.skife.jdbi.v2.Handle;
import org.skife.jdbi.v2.Query;
import org.skife.jdbi.v2.util.StringMapper;
import monasca.api.domain.model.alarmstatehistory.AlarmStateHistory;
import monasca.api.domain.model.alarmstatehistory.AlarmStateHistoryRepo;
import monasca.api.infrastructure.persistence.DimensionQueries;
import monasca.api.infrastructure.persistence.SubAlarmDefinitionQueries;
import monasca.common.persistence.BeanMapper;
/**
* Alarm repository implementation.
*/
public class AlarmStateHistoryVerticaRepoImpl implements AlarmStateHistoryRepo {
public static final DateTimeFormatter DATETIME_FORMATTER = ISODateTimeFormat.dateTimeNoMillis()
.withZoneUTC();
private static final String FIND_ALARMS_SQL =
"select distinct ad.id from alarm_definition as ad "
+ "join sub_alarm_definition sad on ad.id = sad.alarm_definition_id "
+ "left outer join sub_alarm_definition_dimension dim on sad.id = dim.sub_alarm_definition_id%s "
+ "where ad.tenant_id = :tenantId and ad.deleted_at is NULL";
private static final String FIND_BY_ALARM_DEF_SQL =
"select *, time_stamp as timestamp from MonAlarms.StateHistory "
+ "where tenant_id = :tenantId%s order by time_stamp desc";
private final DBI mysql;
private final DBI vertica;
@Inject
public AlarmStateHistoryVerticaRepoImpl(@Named("mysql") DBI mysql, @Named("vertica") DBI vertica) {
this.mysql = mysql;
this.vertica = vertica;
}
@Override
public List<AlarmStateHistory> findById(String tenantId, String alarmId, String offset) {
// Todo. Use offset for pagination.
try (Handle h = vertica.open()) {
return h
.createQuery(
"select alarm_id, old_state, new_state, reason, reason_data, time_stamp as timestamp from MonAlarms.StateHistory where tenant_id = :tenantId and alarm_id = :alarmId order by time_stamp desc")
.bind("tenantId", tenantId).bind("alarmId", alarmId)
.map(new BeanMapper<>(AlarmStateHistory.class)).list();
}
}
@Override
public List<AlarmStateHistory> find(String tenantId, Map<String, String> dimensions,
DateTime startTime, @Nullable DateTime endTime, @Nullable String offset) {
// Todo. Use offset for pagination.
List<String> alarmIds = null;
// Find alarm Ids for dimensions
try (Handle h = mysql.open()) {
String sql = String.format(FIND_ALARMS_SQL, SubAlarmDefinitionQueries.buildJoinClauseFor(dimensions));
Query<Map<String, Object>> query = h.createQuery(sql).bind("tenantId", tenantId);
DimensionQueries.bindDimensionsToQuery(query, dimensions);
alarmIds = query.map(StringMapper.FIRST).list();
}
if (alarmIds == null || alarmIds.isEmpty())
return Collections.emptyList();
// Find alarm state history for alarm Ids
try (Handle h = vertica.open()) {
// Build sql
StringBuilder sbWhere = new StringBuilder();
sbWhere.append(" and alarm_id in (");
for (int i = 0; i < alarmIds.size(); i++) {
if (i > 0)
sbWhere.append(", ");
sbWhere.append('\'').append(alarmIds.get(i)).append('\'');
}
sbWhere.append(')');
if (startTime != null)
sbWhere.append(" and time_stamp >= :startTime");
if (endTime != null)
sbWhere.append(" and time_stamp <= :endTime");
String sql = String.format(FIND_BY_ALARM_DEF_SQL, sbWhere);
// Build query
Query<Map<String, Object>> query = h.createQuery(sql).bind("tenantId", tenantId);
if (startTime != null)
query.bind("startTime", new Timestamp(startTime.getMillis()));
if (endTime != null)
query.bind("endTime", new Timestamp(endTime.getMillis()));
DimensionQueries.bindDimensionsToQuery(query, dimensions);
return query.map(new BeanMapper<>(AlarmStateHistory.class)).list();
}
}
}