| /* |
| * Copyright 2016-present Open Networking Laboratory |
| * |
| * 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 org.onosproject.faultmanagement.impl; |
| |
| import com.google.common.collect.ImmutableSet; |
| import org.apache.felix.scr.annotations.Activate; |
| import org.apache.felix.scr.annotations.Component; |
| import org.apache.felix.scr.annotations.Deactivate; |
| import org.apache.felix.scr.annotations.Modified; |
| import org.apache.felix.scr.annotations.Reference; |
| import org.apache.felix.scr.annotations.ReferenceCardinality; |
| import org.apache.felix.scr.annotations.Service; |
| import org.onosproject.faultmanagement.api.AlarmStore; |
| import org.onosproject.faultmanagement.api.AlarmStoreDelegate; |
| import org.onosproject.incubator.net.faultmanagement.alarm.Alarm; |
| import org.onosproject.incubator.net.faultmanagement.alarm.AlarmEntityId; |
| import org.onosproject.incubator.net.faultmanagement.alarm.AlarmEvent; |
| import org.onosproject.incubator.net.faultmanagement.alarm.AlarmId; |
| import org.onosproject.incubator.net.faultmanagement.alarm.DefaultAlarm; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.store.AbstractStore; |
| import org.onosproject.store.serializers.KryoNamespaces; |
| import org.onosproject.store.service.ConsistentMap; |
| import org.onosproject.store.service.MapEvent; |
| import org.onosproject.store.service.MapEventListener; |
| import org.onosproject.store.service.Serializer; |
| import org.onosproject.store.service.StorageService; |
| import org.slf4j.Logger; |
| |
| import java.util.Collection; |
| import java.util.Map; |
| import java.util.stream.Collectors; |
| |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Manages information of alarms using gossip protocol to distribute |
| * information. |
| */ |
| @Component(immediate = true) |
| @Service |
| public class DistributedAlarmStore |
| extends AbstractStore<AlarmEvent, AlarmStoreDelegate> |
| implements AlarmStore { |
| |
| private final Logger log = getLogger(getClass()); |
| private ConsistentMap<AlarmId, Alarm> alarms; |
| private Map<AlarmId, Alarm> alarmsMap; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected StorageService storageService; |
| |
| private final MapEventListener<AlarmId, Alarm> listener = new InternalListener(); |
| |
| @Activate |
| public void activate() { |
| log.info("Started"); |
| alarms = storageService.<AlarmId, Alarm>consistentMapBuilder() |
| .withName("onos-alarm-table") |
| .withSerializer(Serializer.using(KryoNamespaces.API, |
| Alarm.class, |
| DefaultAlarm.class, |
| AlarmId.class, |
| AlarmEvent.Type.class, |
| Alarm.SeverityLevel.class, |
| AlarmEntityId.class)) |
| .build(); |
| alarms.addListener(listener); |
| alarmsMap = alarms.asJavaMap(); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| alarms.removeListener(listener); |
| log.info("Stopped"); |
| } |
| |
| @Modified |
| public boolean modified() { |
| log.info("Modified"); |
| return true; |
| } |
| |
| @Override |
| public Alarm getAlarm(AlarmId alarmId) { |
| return alarmsMap.get(alarmId); |
| } |
| |
| @Override |
| public Collection<Alarm> getAlarms() { |
| return ImmutableSet.copyOf(alarmsMap.values()); |
| } |
| |
| @Override |
| public Collection<Alarm> getAlarms(DeviceId deviceId) { |
| //FIXME: this is expensive, need refactoring when core maps provide different indexes. |
| return ImmutableSet.copyOf(alarmsMap.values().stream() |
| .filter(alarm -> alarm.deviceId().equals(deviceId)) |
| .collect(Collectors.toSet())); |
| } |
| |
| @Override |
| public void setAlarm(Alarm alarm) { |
| alarms.put(alarm.id(), alarm); |
| } |
| |
| @Override |
| public void removeAlarm(AlarmId alarmId) { |
| alarms.remove(alarmId); |
| } |
| |
| //Event listener to notify delegates about Map events. |
| private class InternalListener implements MapEventListener<AlarmId, Alarm> { |
| |
| @Override |
| public void event(MapEvent<AlarmId, Alarm> mapEvent) { |
| final AlarmEvent.Type type; |
| final Alarm alarm; |
| switch (mapEvent.type()) { |
| case INSERT: |
| type = AlarmEvent.Type.CREATED; |
| alarm = mapEvent.newValue().value(); |
| break; |
| case UPDATE: |
| type = AlarmEvent.Type.CREATED; |
| alarm = mapEvent.newValue().value(); |
| break; |
| case REMOVE: |
| type = AlarmEvent.Type.REMOVED; |
| alarm = mapEvent.oldValue().value(); |
| break; |
| default: |
| throw new IllegalArgumentException("Wrong event type " + mapEvent.type()); |
| } |
| notifyDelegate(new AlarmEvent(type, alarm)); |
| } |
| } |
| } |