113 lines
3.7 KiB
Java
113 lines
3.7 KiB
Java
/*
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* Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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* implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.hpcloud.mon.infrastructure.persistence;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Map;
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import javax.inject.Inject;
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import org.skife.jdbi.v2.DBI;
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import org.skife.jdbi.v2.Handle;
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import com.hpcloud.mon.common.model.alarm.AggregateFunction;
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import com.hpcloud.mon.common.model.alarm.AlarmOperator;
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import com.hpcloud.mon.common.model.alarm.AlarmState;
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import com.hpcloud.mon.common.model.alarm.AlarmSubExpression;
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import com.hpcloud.mon.common.model.metric.MetricDefinition;
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import com.hpcloud.mon.domain.model.Alarm;
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import com.hpcloud.mon.domain.model.SubAlarm;
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import com.hpcloud.mon.domain.service.AlarmDAO;
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import com.hpcloud.persistence.BeanMapper;
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import com.hpcloud.persistence.SqlQueries;
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/**
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* Alarm DAO implementation.
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*/
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public class AlarmDAOImpl implements AlarmDAO {
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private final DBI db;
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@Inject
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public AlarmDAOImpl(DBI db) {
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this.db = db;
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}
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private static Map<String, String> findDimensionsById(Handle handle, String subAlarmId) {
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return SqlQueries.keyValuesFor(handle,
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"select dimension_name, value from sub_alarm_dimension where sub_alarm_id = ?", subAlarmId);
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}
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/**
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* Returns a list of SubAlarms for the complete (select *) set of {@code subAlarmRows}.
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*/
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private static List<SubAlarm> subAlarmsForRows(Handle handle,
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List<Map<String, Object>> subAlarmRows) {
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List<SubAlarm> subAlarms = new ArrayList<SubAlarm>(subAlarmRows.size());
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for (Map<String, Object> row : subAlarmRows) {
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String subAlarmId = (String) row.get("id");
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Map<String, String> dimensions = findDimensionsById(handle, subAlarmId);
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AggregateFunction function = AggregateFunction.valueOf((String) row.get("function"));
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MetricDefinition metricDef = new MetricDefinition((String) row.get("metric_name"), dimensions);
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AlarmOperator operator = AlarmOperator.valueOf((String) row.get("operator"));
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AlarmSubExpression subExpression = new AlarmSubExpression(function, metricDef, operator,
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(Double) row.get("threshold"), (Integer) row.get("period"), (Integer) row.get("periods"));
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SubAlarm subAlarm = new SubAlarm(subAlarmId, (String) row.get("alarm_id"), subExpression);
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subAlarms.add(subAlarm);
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}
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return subAlarms;
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}
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@Override
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public Alarm findById(String id) {
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Handle h = db.open();
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try {
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Alarm alarm = h.createQuery("select * from alarm where id = :id and deleted_at is null")
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.bind("id", id)
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.map(new BeanMapper<Alarm>(Alarm.class))
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.first();
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alarm.setSubAlarms(subAlarmsForRows(
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h,
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h.createQuery("select * from sub_alarm where alarm_id = :alarmId")
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.bind("alarmId", alarm.getId())
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.list()));
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return alarm;
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} finally {
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h.close();
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}
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}
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@Override
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public void updateState(String id, AlarmState state) {
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Handle h = db.open();
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try {
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h.createStatement("update alarm set state = :state, updated_at = NOW() where id = :id")
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.bind("id", id)
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.bind("state", state.toString())
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.execute();
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} finally {
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h.close();
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}
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}
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}
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