Pavlin Radoslavov | a071b1e | 2014-11-17 13:37:57 -0800 | [diff] [blame] | 1 | /* |
Brian O'Connor | a09fe5b | 2017-08-03 21:12:30 -0700 | [diff] [blame] | 2 | * Copyright 2017-present Open Networking Foundation |
Pavlin Radoslavov | a071b1e | 2014-11-17 13:37:57 -0800 | [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 | */ |
Jonathan Hart | 6af92be | 2016-01-05 20:52:25 -0800 | [diff] [blame] | 16 | |
Jonathan Hart | 470ed4f | 2017-01-31 16:52:28 -0800 | [diff] [blame] | 17 | package org.onosproject.intentsync; |
Pavlin Radoslavov | a071b1e | 2014-11-17 13:37:57 -0800 | [diff] [blame] | 18 | |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 19 | import org.onosproject.cluster.ClusterService; |
| 20 | import org.onosproject.cluster.LeadershipEvent; |
| 21 | import org.onosproject.cluster.LeadershipEventListener; |
| 22 | import org.onosproject.cluster.LeadershipService; |
Madan Jampani | 620f70d | 2016-01-30 22:22:47 -0800 | [diff] [blame] | 23 | import org.onosproject.cluster.NodeId; |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 24 | import org.onosproject.core.ApplicationId; |
| 25 | import org.onosproject.core.CoreService; |
| 26 | import org.onosproject.net.intent.Intent; |
| 27 | import org.onosproject.net.intent.IntentService; |
| 28 | import org.onosproject.net.intent.IntentState; |
Jonathan Hart | 6af92be | 2016-01-05 20:52:25 -0800 | [diff] [blame] | 29 | import org.onosproject.net.intent.IntentUtils; |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 30 | import org.onosproject.net.intent.Key; |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 31 | import org.osgi.service.component.annotations.Activate; |
| 32 | import org.osgi.service.component.annotations.Component; |
| 33 | import org.osgi.service.component.annotations.Deactivate; |
| 34 | import org.osgi.service.component.annotations.Reference; |
| 35 | import org.osgi.service.component.annotations.ReferenceCardinality; |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 36 | import org.slf4j.Logger; |
| 37 | import org.slf4j.LoggerFactory; |
Pingping Lin | c07781f | 2015-10-30 00:44:41 -0700 | [diff] [blame] | 38 | |
| 39 | import java.util.HashMap; |
| 40 | import java.util.LinkedList; |
| 41 | import java.util.List; |
| 42 | import java.util.Map; |
| 43 | import java.util.Map.Entry; |
| 44 | import java.util.concurrent.ConcurrentHashMap; |
| 45 | import java.util.concurrent.ExecutorService; |
| 46 | |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 47 | import static java.util.concurrent.Executors.newSingleThreadExecutor; |
| 48 | import static org.onlab.util.Tools.groupedThreads; |
Jonathan Hart | 96c5a4a | 2015-07-31 14:23:33 -0700 | [diff] [blame] | 49 | |
Jonathan Hart | 5137218 | 2014-12-03 21:32:34 -0800 | [diff] [blame] | 50 | /** |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 51 | * Synchronizes intents between an in-memory intent store and the IntentService. |
Jonathan Hart | 5137218 | 2014-12-03 21:32:34 -0800 | [diff] [blame] | 52 | */ |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 53 | @Component(immediate = true, service = { IntentSynchronizationService.class, |
| 54 | IntentSynchronizationAdminService.class }) |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 55 | public class IntentSynchronizer implements IntentSynchronizationService, |
| 56 | IntentSynchronizationAdminService { |
Pavlin Radoslavov | 2aa1f32 | 2015-03-11 17:59:44 -0700 | [diff] [blame] | 57 | |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 58 | private static final Logger log = LoggerFactory.getLogger(IntentSynchronizer.class); |
Pavlin Radoslavov | a071b1e | 2014-11-17 13:37:57 -0800 | [diff] [blame] | 59 | |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 60 | private static final String APP_NAME = "org.onosproject.intentsynchronizer"; |
Jonathan Hart | 9a426f8 | 2015-09-03 15:43:13 +0200 | [diff] [blame] | 61 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 62 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 63 | protected CoreService coreService; |
Pavlin Radoslavov | a071b1e | 2014-11-17 13:37:57 -0800 | [diff] [blame] | 64 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 65 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 66 | protected LeadershipService leadershipService; |
| 67 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 68 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 69 | protected ClusterService clusterService; |
| 70 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 71 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 72 | protected IntentService intentService; |
| 73 | |
Madan Jampani | 620f70d | 2016-01-30 22:22:47 -0800 | [diff] [blame] | 74 | private NodeId localNodeId; |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 75 | private ApplicationId appId; |
| 76 | |
| 77 | private final InternalLeadershipListener leadershipEventListener = |
| 78 | new InternalLeadershipListener(); |
| 79 | |
| 80 | private final Map<Key, Intent> intents = new ConcurrentHashMap<>(); |
| 81 | |
| 82 | private ExecutorService intentsSynchronizerExecutor; |
| 83 | |
Pavlin Radoslavov | a071b1e | 2014-11-17 13:37:57 -0800 | [diff] [blame] | 84 | private volatile boolean isElectedLeader = false; |
| 85 | private volatile boolean isActivatedLeader = false; |
| 86 | |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 87 | @Activate |
| 88 | public void activate() { |
Madan Jampani | 620f70d | 2016-01-30 22:22:47 -0800 | [diff] [blame] | 89 | this.localNodeId = clusterService.getLocalNode().id(); |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 90 | this.appId = coreService.registerApplication(APP_NAME); |
Jonathan Hart | a2eb9ff | 2016-04-13 21:27:06 -0700 | [diff] [blame] | 91 | intentsSynchronizerExecutor = createExecutor(); |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 92 | |
| 93 | leadershipService.addListener(leadershipEventListener); |
| 94 | leadershipService.runForLeadership(appId.name()); |
| 95 | |
| 96 | log.info("Started"); |
Jonathan Hart | 9a426f8 | 2015-09-03 15:43:13 +0200 | [diff] [blame] | 97 | } |
| 98 | |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 99 | @Deactivate |
| 100 | public void deactivate() { |
| 101 | leadershipService.withdraw(appId.name()); |
| 102 | leadershipService.removeListener(leadershipEventListener); |
Pavlin Radoslavov | a071b1e | 2014-11-17 13:37:57 -0800 | [diff] [blame] | 103 | |
Pavlin Radoslavov | a7243cc | 2014-11-22 21:38:02 -0800 | [diff] [blame] | 104 | synchronized (this) { |
Luca Prete | 00043db | 2015-11-03 15:40:40 -0800 | [diff] [blame] | 105 | intentsSynchronizerExecutor.shutdownNow(); |
Pavlin Radoslavov | a7243cc | 2014-11-22 21:38:02 -0800 | [diff] [blame] | 106 | } |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 107 | |
| 108 | log.info("Stopped"); |
Pavlin Radoslavov | a071b1e | 2014-11-17 13:37:57 -0800 | [diff] [blame] | 109 | } |
| 110 | |
Pingping Lin | c07781f | 2015-10-30 00:44:41 -0700 | [diff] [blame] | 111 | /** |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 112 | * Creates an executor that will be used for synchronization tasks. |
| 113 | * <p> |
| 114 | * Can be overridden to change the type of executor used. |
| 115 | * </p> |
| 116 | * |
| 117 | * @return executor service |
Pingping Lin | c07781f | 2015-10-30 00:44:41 -0700 | [diff] [blame] | 118 | */ |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 119 | protected ExecutorService createExecutor() { |
HIGUCHI Yuta | d9e0105 | 2016-04-14 09:31:42 -0700 | [diff] [blame] | 120 | return newSingleThreadExecutor(groupedThreads("onos/" + appId, "sync", log)); |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 121 | } |
| 122 | |
| 123 | @Override |
Pingping Lin | c07781f | 2015-10-30 00:44:41 -0700 | [diff] [blame] | 124 | public void removeIntents() { |
| 125 | if (!isElectedLeader) { |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 126 | // Only leader will withdraw intents |
Pingping Lin | c07781f | 2015-10-30 00:44:41 -0700 | [diff] [blame] | 127 | return; |
| 128 | } |
| 129 | |
| 130 | log.debug("Intent Synchronizer shutdown: withdrawing all intents..."); |
| 131 | |
| 132 | for (Entry<Key, Intent> entry : intents.entrySet()) { |
| 133 | intentService.withdraw(entry.getValue()); |
| 134 | log.debug("Intent Synchronizer withdrawing intent: {}", |
| 135 | entry.getValue()); |
| 136 | } |
| 137 | |
| 138 | intents.clear(); |
| 139 | log.info("Tried to clean all intents"); |
| 140 | } |
| 141 | |
Jonathan Hart | 9a426f8 | 2015-09-03 15:43:13 +0200 | [diff] [blame] | 142 | @Override |
Luca Prete | 2705d66 | 2016-04-29 15:30:23 -0700 | [diff] [blame] | 143 | public void removeIntentsByAppId(ApplicationId appId) { |
| 144 | if (!isElectedLeader) { |
| 145 | // Only leader will withdraw intents |
| 146 | return; |
| 147 | } |
| 148 | |
| 149 | log.debug("Withdrawing intents for app {}...", |
| 150 | appId); |
| 151 | |
| 152 | intents.entrySet() |
| 153 | .stream() |
| 154 | .filter(intent -> intent.getValue().appId().equals(appId)) |
| 155 | .forEach(intent -> { |
| 156 | log.debug("Intent Synchronizer withdrawing intent: {}", |
| 157 | intent); |
| 158 | intentService.withdraw(intent.getValue()); |
| 159 | intents.remove(intent.getKey(), intent.getValue()); |
| 160 | log.info("Tried to clean intents for app: {}", appId); |
| 161 | }); |
| 162 | } |
| 163 | |
| 164 | @Override |
Jonathan Hart | 9a426f8 | 2015-09-03 15:43:13 +0200 | [diff] [blame] | 165 | public void submit(Intent intent) { |
| 166 | synchronized (this) { |
| 167 | intents.put(intent.key(), intent); |
| 168 | if (isElectedLeader && isActivatedLeader) { |
Luca Prete | 00043db | 2015-11-03 15:40:40 -0800 | [diff] [blame] | 169 | log.trace("Submitting intent: {}", intent); |
Jonathan Hart | 9a426f8 | 2015-09-03 15:43:13 +0200 | [diff] [blame] | 170 | intentService.submit(intent); |
| 171 | } |
| 172 | } |
| 173 | } |
| 174 | |
| 175 | @Override |
| 176 | public void withdraw(Intent intent) { |
| 177 | synchronized (this) { |
| 178 | intents.remove(intent.key(), intent); |
| 179 | if (isElectedLeader && isActivatedLeader) { |
Luca Prete | 00043db | 2015-11-03 15:40:40 -0800 | [diff] [blame] | 180 | log.trace("Withdrawing intent: {}", intent); |
Jonathan Hart | 9a426f8 | 2015-09-03 15:43:13 +0200 | [diff] [blame] | 181 | intentService.withdraw(intent); |
| 182 | } |
| 183 | } |
| 184 | } |
| 185 | |
Jonathan Hart | 5137218 | 2014-12-03 21:32:34 -0800 | [diff] [blame] | 186 | /** |
Luca Prete | 00043db | 2015-11-03 15:40:40 -0800 | [diff] [blame] | 187 | * Signals the synchronizer that the leadership has changed. |
Jonathan Hart | 5137218 | 2014-12-03 21:32:34 -0800 | [diff] [blame] | 188 | * |
| 189 | * @param isLeader true if this instance is now the leader, otherwise false |
| 190 | */ |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 191 | private void leaderChanged(boolean isLeader) { |
Luca Prete | 00043db | 2015-11-03 15:40:40 -0800 | [diff] [blame] | 192 | log.debug("Leader changed: {}", isLeader); |
Pavlin Radoslavov | a071b1e | 2014-11-17 13:37:57 -0800 | [diff] [blame] | 193 | |
| 194 | if (!isLeader) { |
| 195 | this.isElectedLeader = false; |
| 196 | this.isActivatedLeader = false; |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 197 | // Nothing to do |
| 198 | return; |
Pavlin Radoslavov | a071b1e | 2014-11-17 13:37:57 -0800 | [diff] [blame] | 199 | } |
| 200 | this.isActivatedLeader = false; |
| 201 | this.isElectedLeader = true; |
| 202 | |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 203 | // Run the synchronization task |
Luca Prete | 00043db | 2015-11-03 15:40:40 -0800 | [diff] [blame] | 204 | intentsSynchronizerExecutor.execute(this::synchronizeIntents); |
Pavlin Radoslavov | a071b1e | 2014-11-17 13:37:57 -0800 | [diff] [blame] | 205 | } |
| 206 | |
Jonathan Hart | 9a426f8 | 2015-09-03 15:43:13 +0200 | [diff] [blame] | 207 | private void synchronizeIntents() { |
| 208 | Map<Key, Intent> serviceIntents = new HashMap<>(); |
| 209 | intentService.getIntents().forEach(i -> { |
| 210 | if (i.appId().equals(appId)) { |
| 211 | serviceIntents.put(i.key(), i); |
Pavlin Radoslavov | a071b1e | 2014-11-17 13:37:57 -0800 | [diff] [blame] | 212 | } |
Jonathan Hart | 9a426f8 | 2015-09-03 15:43:13 +0200 | [diff] [blame] | 213 | }); |
Pavlin Radoslavov | a071b1e | 2014-11-17 13:37:57 -0800 | [diff] [blame] | 214 | |
Jonathan Hart | 9a426f8 | 2015-09-03 15:43:13 +0200 | [diff] [blame] | 215 | List<Intent> intentsToAdd = new LinkedList<>(); |
| 216 | List<Intent> intentsToRemove = new LinkedList<>(); |
Pavlin Radoslavov | a7243cc | 2014-11-22 21:38:02 -0800 | [diff] [blame] | 217 | |
Jonathan Hart | 9a426f8 | 2015-09-03 15:43:13 +0200 | [diff] [blame] | 218 | for (Intent localIntent : intents.values()) { |
| 219 | Intent serviceIntent = serviceIntents.remove(localIntent.key()); |
| 220 | if (serviceIntent == null) { |
| 221 | intentsToAdd.add(localIntent); |
Pavlin Radoslavov | a7243cc | 2014-11-22 21:38:02 -0800 | [diff] [blame] | 222 | } else { |
Jonathan Hart | 9a426f8 | 2015-09-03 15:43:13 +0200 | [diff] [blame] | 223 | IntentState state = intentService.getIntentState(serviceIntent.key()); |
Ray Milkey | 4fd3ceb | 2015-12-10 14:43:08 -0800 | [diff] [blame] | 224 | if (!IntentUtils.intentsAreEqual(serviceIntent, localIntent) || state == null || |
Jonathan Hart | 9a426f8 | 2015-09-03 15:43:13 +0200 | [diff] [blame] | 225 | state == IntentState.WITHDRAW_REQ || |
| 226 | state == IntentState.WITHDRAWING || |
| 227 | state == IntentState.WITHDRAWN) { |
| 228 | intentsToAdd.add(localIntent); |
Pavlin Radoslavov | a7243cc | 2014-11-22 21:38:02 -0800 | [diff] [blame] | 229 | } |
Pingping Lin | e28ae4c | 2015-03-13 11:37:03 -0700 | [diff] [blame] | 230 | } |
| 231 | } |
Jonathan Hart | 9a426f8 | 2015-09-03 15:43:13 +0200 | [diff] [blame] | 232 | |
| 233 | for (Intent serviceIntent : serviceIntents.values()) { |
| 234 | IntentState state = intentService.getIntentState(serviceIntent.key()); |
| 235 | if (state != null && state != IntentState.WITHDRAW_REQ |
| 236 | && state != IntentState.WITHDRAWING |
| 237 | && state != IntentState.WITHDRAWN) { |
| 238 | intentsToRemove.add(serviceIntent); |
| 239 | } |
| 240 | } |
| 241 | |
Luca Prete | 00043db | 2015-11-03 15:40:40 -0800 | [diff] [blame] | 242 | log.debug("Intent Synchronizer: submitting {}, withdrawing {}", |
Jonathan Hart | 9a426f8 | 2015-09-03 15:43:13 +0200 | [diff] [blame] | 243 | intentsToAdd.size(), intentsToRemove.size()); |
| 244 | |
| 245 | // Withdraw Intents |
| 246 | for (Intent intent : intentsToRemove) { |
| 247 | intentService.withdraw(intent); |
Luca Prete | 00043db | 2015-11-03 15:40:40 -0800 | [diff] [blame] | 248 | log.trace("Intent Synchronizer: withdrawing intent: {}", |
Jonathan Hart | 9a426f8 | 2015-09-03 15:43:13 +0200 | [diff] [blame] | 249 | intent); |
| 250 | } |
| 251 | if (!isElectedLeader) { |
Luca Prete | 00043db | 2015-11-03 15:40:40 -0800 | [diff] [blame] | 252 | log.debug("Intent Synchronizer: cannot withdraw intents: " + |
Jonathan Hart | 9a426f8 | 2015-09-03 15:43:13 +0200 | [diff] [blame] | 253 | "not elected leader anymore"); |
| 254 | isActivatedLeader = false; |
Pingping Lin | e28ae4c | 2015-03-13 11:37:03 -0700 | [diff] [blame] | 255 | return; |
| 256 | } |
| 257 | |
Jonathan Hart | 9a426f8 | 2015-09-03 15:43:13 +0200 | [diff] [blame] | 258 | // Add Intents |
| 259 | for (Intent intent : intentsToAdd) { |
| 260 | intentService.submit(intent); |
Luca Prete | 00043db | 2015-11-03 15:40:40 -0800 | [diff] [blame] | 261 | log.trace("Intent Synchronizer: submitting intent: {}", |
Jonathan Hart | 9a426f8 | 2015-09-03 15:43:13 +0200 | [diff] [blame] | 262 | intent); |
| 263 | } |
| 264 | if (!isElectedLeader) { |
Luca Prete | 00043db | 2015-11-03 15:40:40 -0800 | [diff] [blame] | 265 | log.debug("Intent Synchronizer: cannot submit intents: " + |
Jonathan Hart | 9a426f8 | 2015-09-03 15:43:13 +0200 | [diff] [blame] | 266 | "not elected leader anymore"); |
| 267 | isActivatedLeader = false; |
Pingping Lin | e28ae4c | 2015-03-13 11:37:03 -0700 | [diff] [blame] | 268 | return; |
Jonathan Hart | 9a426f8 | 2015-09-03 15:43:13 +0200 | [diff] [blame] | 269 | } |
| 270 | |
| 271 | if (isElectedLeader) { |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 272 | // Allow push of Intents |
| 273 | isActivatedLeader = true; |
Pingping Lin | e28ae4c | 2015-03-13 11:37:03 -0700 | [diff] [blame] | 274 | } else { |
Jonathan Hart | 9a426f8 | 2015-09-03 15:43:13 +0200 | [diff] [blame] | 275 | isActivatedLeader = false; |
Pingping Lin | e28ae4c | 2015-03-13 11:37:03 -0700 | [diff] [blame] | 276 | } |
Luca Prete | 00043db | 2015-11-03 15:40:40 -0800 | [diff] [blame] | 277 | log.debug("Intent synchronization completed"); |
Pingping Lin | e28ae4c | 2015-03-13 11:37:03 -0700 | [diff] [blame] | 278 | } |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 279 | |
| 280 | @Override |
| 281 | public void modifyPrimary(boolean isPrimary) { |
| 282 | leaderChanged(isPrimary); |
| 283 | } |
| 284 | |
| 285 | /** |
| 286 | * A listener for leadership events. |
| 287 | */ |
| 288 | private class InternalLeadershipListener implements LeadershipEventListener { |
| 289 | |
| 290 | @Override |
Madan Jampani | 620f70d | 2016-01-30 22:22:47 -0800 | [diff] [blame] | 291 | public boolean isRelevant(LeadershipEvent event) { |
| 292 | return event.subject().topic().equals(appId.name()); |
| 293 | } |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 294 | |
Madan Jampani | 620f70d | 2016-01-30 22:22:47 -0800 | [diff] [blame] | 295 | @Override |
| 296 | public void event(LeadershipEvent event) { |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 297 | switch (event.type()) { |
Madan Jampani | 620f70d | 2016-01-30 22:22:47 -0800 | [diff] [blame] | 298 | case LEADER_CHANGED: |
| 299 | case LEADER_AND_CANDIDATES_CHANGED: |
| 300 | if (localNodeId.equals(event.subject().leaderNodeId())) { |
| 301 | log.info("IntentSynchronizer gained leadership"); |
| 302 | leaderChanged(true); |
| 303 | } else { |
| 304 | log.info("IntentSynchronizer leader changed. New leader is {}", event.subject().leaderNodeId()); |
| 305 | leaderChanged(false); |
| 306 | } |
Ray Milkey | d6a67c3 | 2018-02-02 10:30:35 -0800 | [diff] [blame] | 307 | break; |
Jonathan Hart | 365335e | 2015-12-10 11:09:53 -0800 | [diff] [blame] | 308 | default: |
| 309 | break; |
| 310 | } |
| 311 | } |
| 312 | } |
Pavlin Radoslavov | a071b1e | 2014-11-17 13:37:57 -0800 | [diff] [blame] | 313 | } |