monasca-thresh/src/test/java/com/hpcloud/mon/infrastructure/thresholding/EventProcessingBoltTest.java

230 lines
10 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 com.hpcloud.mon.infrastructure.thresholding;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.UUID;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
import backtype.storm.Testing;
import backtype.storm.task.OutputCollector;
import backtype.storm.task.TopologyContext;
import backtype.storm.testing.MkTupleParam;
import backtype.storm.tuple.Tuple;
import backtype.storm.tuple.Values;
import com.hpcloud.mon.common.event.AlarmCreatedEvent;
import com.hpcloud.mon.common.event.AlarmDeletedEvent;
import com.hpcloud.mon.common.event.AlarmUpdatedEvent;
import com.hpcloud.mon.common.model.alarm.AlarmExpression;
import com.hpcloud.mon.common.model.alarm.AlarmState;
import com.hpcloud.mon.common.model.alarm.AlarmSubExpression;
import com.hpcloud.mon.common.model.metric.MetricDefinition;
import com.hpcloud.mon.domain.model.Alarm;
import com.hpcloud.mon.domain.model.MetricDefinitionAndTenantId;
import com.hpcloud.mon.domain.model.SubAlarm;
import com.hpcloud.streaming.storm.Streams;
@Test
public class EventProcessingBoltTest {
private static final String TENANT_ID = "AAAAABBBBBBCCCCC";
private EventProcessingBolt bolt;
private OutputCollector collector;
private AlarmExpression alarmExpression;
private Alarm alarm;
private List<SubAlarm> subAlarms;
@BeforeMethod
protected void beforeMethod() {
collector = mock(OutputCollector.class);
bolt = new EventProcessingBolt();
final Map<String, String> config = new HashMap<>();
final TopologyContext context = mock(TopologyContext.class);
bolt.prepare(config, context, collector);
final String alarmId = "111111112222222222233333333334";
final String name = "Test CPU Alarm";
final String description = "Description of " + name;
final String expression = "avg(hpcs.compute.cpu{instance_id=123,device=42}, 1) > 5 " +
"and max(hpcs.compute.mem{instance_id=123,device=42}) > 80 " +
"and max(hpcs.compute.load{instance_id=123,device=42}) > 5";
alarmExpression = new AlarmExpression(expression);
subAlarms = createSubAlarms(alarmId, alarmExpression);
alarm = new Alarm(alarmId, TENANT_ID, name, description, alarmExpression, subAlarms,
AlarmState.UNDETERMINED, Boolean.TRUE);
}
private List<SubAlarm> createSubAlarms(final String alarmId,
final AlarmExpression alarmExpression,
String ... ids) {
final List<AlarmSubExpression> subExpressions = alarmExpression.getSubExpressions();
final List<SubAlarm> subAlarms = new ArrayList<SubAlarm>(subExpressions.size());
for (int i = 0; i < subExpressions.size(); i++) {
final String id;
if (i >= ids.length) {
id = UUID.randomUUID().toString();
}
else {
id = ids[i];
}
final SubAlarm subAlarm = new SubAlarm(id, alarmId, subExpressions.get(i));
subAlarms.add(subAlarm);
}
return subAlarms;
}
public void testAlarmCreatedEvent() {
final Map<String, AlarmSubExpression> expressions = createAlarmSubExpressionMap(alarm);
final AlarmCreatedEvent event = new AlarmCreatedEvent(alarm.getTenantId(), alarm.getId(),
alarm.getName(), alarm.getAlarmExpression().getExpression(), expressions);
final Tuple tuple = createTuple(event);
bolt.execute(tuple);
for (final SubAlarm subAlarm : subAlarms) {
verifyAddedSubAlarm(subAlarm);
}
verify(collector, times(1)).ack(tuple);
}
private Tuple createTuple(final Object event) {
MkTupleParam tupleParam = new MkTupleParam();
tupleParam.setFields("event");
tupleParam.setStream(Streams.DEFAULT_STREAM_ID);
final Tuple tuple = Testing.testTuple(Arrays.asList(event), tupleParam);
return tuple;
}
public void testAlarmDeletedEvent() {
final Map<String, MetricDefinition> metricDefinitions = new HashMap<>();
for (final SubAlarm subAlarm : alarm.getSubAlarms()) {
metricDefinitions.put(subAlarm.getId(), subAlarm.getExpression().getMetricDefinition());
}
final AlarmDeletedEvent event = new AlarmDeletedEvent(alarm.getTenantId(), alarm.getId(),
metricDefinitions);
final Tuple tuple = createTuple(event);
bolt.execute(tuple);
for (final SubAlarm subAlarm : subAlarms) {
verifyDeletedSubAlarm(subAlarm);
}
verify(collector, times(1)).emit(EventProcessingBolt.ALARM_EVENT_STREAM_ID,
new Values(EventProcessingBolt.DELETED, event.alarmId, event));
verify(collector, times(1)).ack(tuple);
}
private void verifyDeletedSubAlarm(final SubAlarm subAlarm) {
verify(collector, times(1)).emit(EventProcessingBolt.METRIC_ALARM_EVENT_STREAM_ID,
new Values(EventProcessingBolt.DELETED,
new MetricDefinitionAndTenantId(
subAlarm.getExpression().getMetricDefinition(), TENANT_ID), subAlarm.getId()));
}
public static AlarmUpdatedEvent createAlarmUpdatedEvent(final Alarm alarm,
final AlarmExpression updatedAlarmExpression, List<SubAlarm> updatedSubAlarms) {
final Alarm updatedAlarm = new Alarm();
updatedAlarm.setId(alarm.getId());
updatedAlarm.setTenantId(alarm.getTenantId());
updatedAlarm.setName(alarm.getName());
updatedAlarm.setExpression(updatedAlarmExpression.getExpression());
updatedAlarm.setDescription(alarm.getDescription());
updatedAlarm.setState(alarm.getState());
final List<SubAlarm> toDelete = new ArrayList<>(alarm.getSubAlarms());
final Map<String, AlarmSubExpression> newAlarmSubExpressions = new HashMap<>();
final Map<String, AlarmSubExpression> updatedSubExpressions = new HashMap<>();
for (final SubAlarm newSubAlarm : updatedSubAlarms) {
final SubAlarm oldSubAlarm = alarm.getSubAlarm(newSubAlarm.getId());
if (oldSubAlarm == null) {
newAlarmSubExpressions.put(newSubAlarm.getId(), newSubAlarm.getExpression());
}
else {
toDelete.remove(oldSubAlarm);
if (!newSubAlarm.getExpression().equals(oldSubAlarm.getExpression())) {
updatedSubExpressions.put(newSubAlarm.getId(), newSubAlarm.getExpression());
}
}
}
final Map<String, AlarmSubExpression> deletedSubExpressions = new HashMap<>(toDelete.size());
for (final SubAlarm oldSubAlarm : toDelete) {
deletedSubExpressions.put(oldSubAlarm.getId(), oldSubAlarm.getExpression());
}
final AlarmUpdatedEvent event = new AlarmUpdatedEvent(updatedAlarm.getTenantId(), updatedAlarm.getId(),
updatedAlarm.getName(), updatedAlarm.getDescription(), updatedAlarm.getAlarmExpression().getExpression(), alarm.getState(), true, deletedSubExpressions,
updatedSubExpressions, newAlarmSubExpressions);
return event;
}
public void testAlarmUpdatedEvent() {
final String updatedExpression = "avg(hpcs.compute.cpu{instance_id=123,device=42}, 1) > 5 " +
"and max(hpcs.compute.Mem{instance_id=123,device=42}) > 90 " +
"and max(hpcs.compute.newLoad{instance_id=123,device=42}) > 5";
final AlarmExpression updatedAlarmExpression = new AlarmExpression(updatedExpression);
final List<SubAlarm> updatedSubAlarms = new ArrayList<>();
updatedSubAlarms.add(subAlarms.get(0));
updatedSubAlarms.add(new SubAlarm(subAlarms.get(1).getId(), alarm.getId(), updatedAlarmExpression.getSubExpressions().get(1)));
updatedSubAlarms.add(new SubAlarm(UUID.randomUUID().toString(), alarm.getId(), updatedAlarmExpression.getSubExpressions().get(2)));
final AlarmUpdatedEvent event = createAlarmUpdatedEvent(alarm, updatedAlarmExpression, updatedSubAlarms);
final Tuple tuple = createTuple(event);
bolt.execute(tuple);
verify(collector, times(1)).ack(tuple);
verifyDeletedSubAlarm(subAlarms.get(2));
verifyUpdatedSubAlarm(updatedSubAlarms.get(1));
verifyAddedSubAlarm(updatedSubAlarms.get(2));
verify(collector, times(1)).emit(EventProcessingBolt.ALARM_EVENT_STREAM_ID,
new Values(EventProcessingBolt.UPDATED, event.alarmId, event));
}
private void verifyAddedSubAlarm(final SubAlarm subAlarm) {
sendSubAlarm(subAlarm, EventProcessingBolt.CREATED);
}
private void verifyUpdatedSubAlarm(final SubAlarm subAlarm) {
sendSubAlarm(subAlarm, EventProcessingBolt.UPDATED);
}
private void sendSubAlarm(final SubAlarm subAlarm, String eventType) {
verify(collector, times(1)).emit(EventProcessingBolt.METRIC_SUB_ALARM_EVENT_STREAM_ID,
new Values(eventType,
new MetricDefinitionAndTenantId(
subAlarm.getExpression().getMetricDefinition(), TENANT_ID), subAlarm));
}
private static Map<String, AlarmSubExpression> createAlarmSubExpressionMap(
Alarm alarm) {
final Map<String, AlarmSubExpression> oldAlarmSubExpressions = new HashMap<>();
for (final SubAlarm subAlarm : alarm.getSubAlarms()) {
oldAlarmSubExpressions.put(subAlarm.getId(), subAlarm.getExpression());
}
return oldAlarmSubExpressions;
}
}