Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 1 | /** |
Brian O'Connor | a09fe5b | 2017-08-03 21:12:30 -0700 | [diff] [blame] | 2 | * Copyright 2016-present Open Networking Foundation |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package org.onosproject.kafkaintegration.kafka; |
| 18 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 19 | import org.osgi.service.component.annotations.Activate; |
| 20 | import org.osgi.service.component.annotations.Component; |
| 21 | import org.osgi.service.component.annotations.Deactivate; |
| 22 | import org.osgi.service.component.annotations.Reference; |
Shravan Ambati | a4875d8 | 2017-01-09 13:06:51 -0800 | [diff] [blame] | 23 | import org.onosproject.cluster.ClusterService; |
| 24 | import org.onosproject.cluster.NodeId; |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 25 | import org.osgi.service.component.annotations.ReferenceCardinality; |
Shravan Ambati | a4875d8 | 2017-01-09 13:06:51 -0800 | [diff] [blame] | 26 | import org.onosproject.cluster.LeadershipService; |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 27 | import org.onosproject.kafkaintegration.api.EventConversionService; |
| 28 | import org.onosproject.kafkaintegration.api.EventSubscriptionService; |
Shravan Ambati | a4875d8 | 2017-01-09 13:06:51 -0800 | [diff] [blame] | 29 | import org.onosproject.kafkaintegration.api.KafkaEventStorageService; |
Shravan Ambati | 5a11e17 | 2016-07-21 15:55:28 -0700 | [diff] [blame] | 30 | import org.onosproject.kafkaintegration.api.dto.OnosEvent; |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 31 | import org.onosproject.net.device.DeviceEvent; |
| 32 | import org.onosproject.net.device.DeviceListener; |
| 33 | import org.onosproject.net.device.DeviceService; |
| 34 | import org.onosproject.net.link.LinkEvent; |
| 35 | import org.onosproject.net.link.LinkListener; |
| 36 | import org.onosproject.net.link.LinkService; |
Aaron Dunlap | ee83f26 | 2019-01-14 12:32:38 -0600 | [diff] [blame] | 37 | import org.onosproject.net.host.HostEvent; |
| 38 | import org.onosproject.net.host.HostListener; |
| 39 | import org.onosproject.net.host.HostService; |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 40 | import org.slf4j.Logger; |
| 41 | import org.slf4j.LoggerFactory; |
| 42 | |
Shravan Ambati | a4875d8 | 2017-01-09 13:06:51 -0800 | [diff] [blame] | 43 | import java.util.Objects; |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 44 | import java.util.concurrent.ExecutorService; |
| 45 | |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 46 | import static java.util.concurrent.Executors.newSingleThreadScheduledExecutor; |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 47 | import static org.onlab.util.Tools.groupedThreads; |
| 48 | import static org.onosproject.kafkaintegration.api.dto.OnosEvent.Type.DEVICE; |
| 49 | import static org.onosproject.kafkaintegration.api.dto.OnosEvent.Type.LINK; |
Aaron Dunlap | ee83f26 | 2019-01-14 12:32:38 -0600 | [diff] [blame] | 50 | import static org.onosproject.kafkaintegration.api.dto.OnosEvent.Type.HOST; |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 51 | |
Shravan Ambati | 5a11e17 | 2016-07-21 15:55:28 -0700 | [diff] [blame] | 52 | |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 53 | /** |
| 54 | * Encapsulates the behavior of monitoring various ONOS events. |
| 55 | * */ |
| 56 | @Component(immediate = true) |
Shravan Ambati | 4c6295e | 2016-12-20 14:53:06 -0800 | [diff] [blame] | 57 | public class EventListener { |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 58 | private final Logger log = LoggerFactory.getLogger(getClass()); |
| 59 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 60 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 61 | protected EventSubscriptionService eventSubscriptionService; |
| 62 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 63 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 64 | protected EventConversionService eventConversionService; |
| 65 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 66 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 67 | protected DeviceService deviceService; |
| 68 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 69 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 70 | protected LinkService linkService; |
| 71 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 72 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Aaron Dunlap | ee83f26 | 2019-01-14 12:32:38 -0600 | [diff] [blame] | 73 | protected HostService hostService; |
| 74 | |
| 75 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Shravan Ambati | a4875d8 | 2017-01-09 13:06:51 -0800 | [diff] [blame] | 76 | protected KafkaEventStorageService kafkaStoreService; |
| 77 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 78 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Shravan Ambati | a4875d8 | 2017-01-09 13:06:51 -0800 | [diff] [blame] | 79 | protected LeadershipService leadershipService; |
| 80 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 81 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Shravan Ambati | a4875d8 | 2017-01-09 13:06:51 -0800 | [diff] [blame] | 82 | protected ClusterService clusterService; |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 83 | |
| 84 | private final DeviceListener deviceListener = new InternalDeviceListener(); |
| 85 | private final LinkListener linkListener = new InternalLinkListener(); |
Aaron Dunlap | ee83f26 | 2019-01-14 12:32:38 -0600 | [diff] [blame] | 86 | private final HostListener hostListener = new InternalHostListener(); |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 87 | |
| 88 | protected ExecutorService eventExecutor; |
| 89 | |
Shravan Ambati | a4875d8 | 2017-01-09 13:06:51 -0800 | [diff] [blame] | 90 | private static final String PUBLISHER_TOPIC = "WORK_QUEUE_PUBLISHER"; |
| 91 | |
| 92 | private NodeId localNodeId; |
| 93 | |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 94 | @Activate |
Shravan Ambati | 5a11e17 | 2016-07-21 15:55:28 -0700 | [diff] [blame] | 95 | protected void activate() { |
| 96 | |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 97 | eventExecutor = newSingleThreadScheduledExecutor(groupedThreads("onos/onosEvents", "events-%d", log)); |
| 98 | deviceService.addListener(deviceListener); |
| 99 | linkService.addListener(linkListener); |
Aaron Dunlap | ee83f26 | 2019-01-14 12:32:38 -0600 | [diff] [blame] | 100 | hostService.addListener(hostListener); |
Shravan Ambati | 5a11e17 | 2016-07-21 15:55:28 -0700 | [diff] [blame] | 101 | |
Shravan Ambati | a4875d8 | 2017-01-09 13:06:51 -0800 | [diff] [blame] | 102 | localNodeId = clusterService.getLocalNode().id(); |
| 103 | |
| 104 | leadershipService.runForLeadership(PUBLISHER_TOPIC); |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 105 | |
| 106 | log.info("Started"); |
| 107 | } |
| 108 | |
| 109 | @Deactivate |
| 110 | protected void deactivate() { |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 111 | deviceService.removeListener(deviceListener); |
| 112 | linkService.removeListener(linkListener); |
Aaron Dunlap | ee83f26 | 2019-01-14 12:32:38 -0600 | [diff] [blame] | 113 | hostService.removeListener(hostListener); |
Shravan Ambati | 5a11e17 | 2016-07-21 15:55:28 -0700 | [diff] [blame] | 114 | |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 115 | eventExecutor.shutdownNow(); |
| 116 | eventExecutor = null; |
| 117 | |
| 118 | log.info("Stopped"); |
| 119 | } |
| 120 | |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 121 | private class InternalDeviceListener implements DeviceListener { |
| 122 | |
| 123 | @Override |
| 124 | public void event(DeviceEvent event) { |
Shravan Ambati | 5a11e17 | 2016-07-21 15:55:28 -0700 | [diff] [blame] | 125 | |
Shravan Ambati | a4875d8 | 2017-01-09 13:06:51 -0800 | [diff] [blame] | 126 | // do not allow to proceed without leadership |
| 127 | NodeId leaderNodeId = leadershipService.getLeader(PUBLISHER_TOPIC); |
| 128 | if (!Objects.equals(localNodeId, leaderNodeId)) { |
| 129 | log.debug("Not a Leader, cannot publish!"); |
| 130 | return; |
| 131 | } |
| 132 | |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 133 | if (!eventSubscriptionService.getEventSubscribers(DEVICE).isEmpty()) { |
Shravan Ambati | 5a11e17 | 2016-07-21 15:55:28 -0700 | [diff] [blame] | 134 | OnosEvent onosEvent = eventConversionService.convertEvent(event); |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 135 | eventExecutor.execute(() -> { |
Shravan Ambati | a4875d8 | 2017-01-09 13:06:51 -0800 | [diff] [blame] | 136 | kafkaStoreService.publishEvent(onosEvent); |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 137 | }); |
Shravan Ambati | a4875d8 | 2017-01-09 13:06:51 -0800 | [diff] [blame] | 138 | log.debug("Pushed event {} to kafka storage", onosEvent); |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 139 | } |
Shravan Ambati | a4875d8 | 2017-01-09 13:06:51 -0800 | [diff] [blame] | 140 | |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 141 | } |
| 142 | } |
| 143 | |
| 144 | private class InternalLinkListener implements LinkListener { |
| 145 | |
| 146 | @Override |
| 147 | public void event(LinkEvent event) { |
Shravan Ambati | 5a11e17 | 2016-07-21 15:55:28 -0700 | [diff] [blame] | 148 | |
Shravan Ambati | a4875d8 | 2017-01-09 13:06:51 -0800 | [diff] [blame] | 149 | // do not allow to proceed without leadership |
| 150 | NodeId leaderNodeId = leadershipService.getLeader(PUBLISHER_TOPIC); |
| 151 | if (!Objects.equals(localNodeId, leaderNodeId)) { |
| 152 | log.debug("Not a Leader, cannot publish!"); |
| 153 | return; |
| 154 | } |
| 155 | |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 156 | if (!eventSubscriptionService.getEventSubscribers(LINK).isEmpty()) { |
Shravan Ambati | 5a11e17 | 2016-07-21 15:55:28 -0700 | [diff] [blame] | 157 | OnosEvent onosEvent = eventConversionService.convertEvent(event); |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 158 | eventExecutor.execute(() -> { |
Shravan Ambati | a4875d8 | 2017-01-09 13:06:51 -0800 | [diff] [blame] | 159 | kafkaStoreService.publishEvent(onosEvent); |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 160 | }); |
Shravan Ambati | a4875d8 | 2017-01-09 13:06:51 -0800 | [diff] [blame] | 161 | log.debug("Pushed event {} to kafka storage", onosEvent); |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 162 | } |
Shravan Ambati | a4875d8 | 2017-01-09 13:06:51 -0800 | [diff] [blame] | 163 | |
Sanjana Agarwal | cb4a3db | 2016-07-14 11:42:48 -0700 | [diff] [blame] | 164 | } |
| 165 | } |
Aaron Dunlap | ee83f26 | 2019-01-14 12:32:38 -0600 | [diff] [blame] | 166 | |
| 167 | private class InternalHostListener implements HostListener { |
| 168 | |
| 169 | @Override |
| 170 | public void event(HostEvent event) { |
| 171 | |
| 172 | // do not allow to proceed without leadership |
| 173 | NodeId leaderNodeId = leadershipService.getLeader(PUBLISHER_TOPIC); |
| 174 | if (!Objects.equals(localNodeId, leaderNodeId)) { |
| 175 | log.debug("Not a Leader, cannot publish!"); |
| 176 | return; |
| 177 | } |
| 178 | |
| 179 | if (!eventSubscriptionService.getEventSubscribers(HOST).isEmpty()) { |
| 180 | OnosEvent onosEvent = eventConversionService.convertEvent(event); |
| 181 | eventExecutor.execute(() -> { |
| 182 | kafkaStoreService.publishEvent(onosEvent); |
| 183 | }); |
| 184 | log.debug("Pushed event {} to kafka storage", onosEvent); |
| 185 | } |
| 186 | |
| 187 | } |
| 188 | } |
Shravan Ambati | a4875d8 | 2017-01-09 13:06:51 -0800 | [diff] [blame] | 189 | } |