Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 1 | /* |
Brian O'Connor | 5ab426f | 2016-04-09 01:19:45 -0700 | [diff] [blame] | 2 | * Copyright 2015-present Open Networking Laboratory |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -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 | package org.onosproject.store.link.impl; |
| 17 | |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 18 | import java.util.Collection; |
| 19 | import java.util.Map; |
| 20 | import java.util.Objects; |
| 21 | import java.util.Set; |
| 22 | import java.util.concurrent.atomic.AtomicReference; |
| 23 | import java.util.function.Predicate; |
| 24 | import java.util.stream.Collectors; |
| 25 | |
| 26 | import org.apache.felix.scr.annotations.Activate; |
| 27 | import org.apache.felix.scr.annotations.Component; |
| 28 | import org.apache.felix.scr.annotations.Deactivate; |
| 29 | import org.apache.felix.scr.annotations.Reference; |
| 30 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
| 31 | import org.apache.felix.scr.annotations.Service; |
| 32 | import org.onlab.util.KryoNamespace; |
| 33 | import org.onlab.util.SharedExecutors; |
| 34 | import org.onosproject.cluster.ClusterService; |
| 35 | import org.onosproject.cluster.NodeId; |
Ray Milkey | b7f0f64 | 2016-01-22 16:08:14 -0800 | [diff] [blame] | 36 | import org.onosproject.core.ApplicationId; |
| 37 | import org.onosproject.core.CoreService; |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 38 | import org.onosproject.mastership.MastershipService; |
| 39 | import org.onosproject.net.AnnotationKeys; |
| 40 | import org.onosproject.net.AnnotationsUtil; |
| 41 | import org.onosproject.net.ConnectPoint; |
| 42 | import org.onosproject.net.DefaultAnnotations; |
| 43 | import org.onosproject.net.DefaultLink; |
| 44 | import org.onosproject.net.DeviceId; |
| 45 | import org.onosproject.net.Link; |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 46 | import org.onosproject.net.Link.Type; |
Ray Milkey | b7f0f64 | 2016-01-22 16:08:14 -0800 | [diff] [blame] | 47 | import org.onosproject.net.LinkKey; |
| 48 | import org.onosproject.net.config.ConfigFactory; |
| 49 | import org.onosproject.net.config.NetworkConfigEvent; |
| 50 | import org.onosproject.net.config.NetworkConfigListener; |
| 51 | import org.onosproject.net.config.NetworkConfigRegistry; |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 52 | import org.onosproject.net.device.DeviceClockService; |
| 53 | import org.onosproject.net.link.DefaultLinkDescription; |
| 54 | import org.onosproject.net.link.LinkDescription; |
| 55 | import org.onosproject.net.link.LinkEvent; |
| 56 | import org.onosproject.net.link.LinkStore; |
| 57 | import org.onosproject.net.link.LinkStoreDelegate; |
| 58 | import org.onosproject.net.provider.ProviderId; |
| 59 | import org.onosproject.store.AbstractStore; |
| 60 | import org.onosproject.store.cluster.messaging.ClusterCommunicationService; |
| 61 | import org.onosproject.store.cluster.messaging.MessageSubject; |
| 62 | import org.onosproject.store.impl.MastershipBasedTimestamp; |
| 63 | import org.onosproject.store.serializers.KryoNamespaces; |
HIGUCHI Yuta | e729065 | 2016-05-18 11:29:01 -0700 | [diff] [blame] | 64 | import org.onosproject.store.serializers.StoreSerializer; |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 65 | import org.onosproject.store.serializers.custom.DistributedStoreSerializers; |
| 66 | import org.onosproject.store.service.EventuallyConsistentMap; |
| 67 | import org.onosproject.store.service.EventuallyConsistentMapEvent; |
| 68 | import org.onosproject.store.service.EventuallyConsistentMapListener; |
| 69 | import org.onosproject.store.service.StorageService; |
| 70 | import org.slf4j.Logger; |
| 71 | |
| 72 | import com.google.common.collect.Iterables; |
| 73 | import com.google.common.collect.Maps; |
kircaali | 28d6768 | 2016-04-11 15:08:14 +0000 | [diff] [blame] | 74 | import com.google.common.collect.Sets; |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 75 | import com.google.common.util.concurrent.Futures; |
| 76 | |
Ray Milkey | b7f0f64 | 2016-01-22 16:08:14 -0800 | [diff] [blame] | 77 | import static org.onosproject.net.DefaultAnnotations.merge; |
| 78 | import static org.onosproject.net.DefaultAnnotations.union; |
| 79 | import static org.onosproject.net.Link.State.ACTIVE; |
| 80 | import static org.onosproject.net.Link.State.INACTIVE; |
| 81 | import static org.onosproject.net.Link.Type.DIRECT; |
| 82 | import static org.onosproject.net.Link.Type.INDIRECT; |
| 83 | import static org.onosproject.net.LinkKey.linkKey; |
| 84 | import static org.onosproject.net.config.basics.SubjectFactories.APP_SUBJECT_FACTORY; |
| 85 | import static org.onosproject.net.link.LinkEvent.Type.LINK_ADDED; |
| 86 | import static org.onosproject.net.link.LinkEvent.Type.LINK_REMOVED; |
| 87 | import static org.onosproject.net.link.LinkEvent.Type.LINK_UPDATED; |
| 88 | import static org.onosproject.store.service.EventuallyConsistentMapEvent.Type.PUT; |
| 89 | import static org.onosproject.store.service.EventuallyConsistentMapEvent.Type.REMOVE; |
| 90 | import static org.slf4j.LoggerFactory.getLogger; |
| 91 | |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 92 | /** |
| 93 | * Manages the inventory of links using a {@code EventuallyConsistentMap}. |
| 94 | */ |
Sho SHIMIZU | 5c396e3 | 2016-08-12 15:19:12 -0700 | [diff] [blame] | 95 | @Component(immediate = true) |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 96 | @Service |
| 97 | public class ECLinkStore |
kircaali | 28d6768 | 2016-04-11 15:08:14 +0000 | [diff] [blame] | 98 | extends AbstractStore<LinkEvent, LinkStoreDelegate> |
| 99 | implements LinkStore { |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 100 | |
Ray Milkey | b7f0f64 | 2016-01-22 16:08:14 -0800 | [diff] [blame] | 101 | /** |
| 102 | * Modes for dealing with newly discovered links. |
| 103 | */ |
| 104 | protected enum LinkDiscoveryMode { |
| 105 | /** |
| 106 | * Permissive mode - all newly discovered links are valid. |
| 107 | */ |
| 108 | PERMISSIVE, |
| 109 | |
| 110 | /** |
| 111 | * Strict mode - all newly discovered links must be defined in |
| 112 | * the network config. |
| 113 | */ |
| 114 | STRICT |
| 115 | } |
| 116 | |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 117 | private final Logger log = getLogger(getClass()); |
| 118 | |
| 119 | private final Map<LinkKey, Link> links = Maps.newConcurrentMap(); |
kircaali | 28d6768 | 2016-04-11 15:08:14 +0000 | [diff] [blame] | 120 | private final Map<LinkKey, Set<ProviderId>> linkProviders = Maps.newConcurrentMap(); |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 121 | private EventuallyConsistentMap<Provided<LinkKey>, LinkDescription> linkDescriptions; |
| 122 | |
kircaali | 28d6768 | 2016-04-11 15:08:14 +0000 | [diff] [blame] | 123 | |
Ray Milkey | b7f0f64 | 2016-01-22 16:08:14 -0800 | [diff] [blame] | 124 | private ApplicationId appId; |
| 125 | |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 126 | private static final MessageSubject LINK_INJECT_MESSAGE = new MessageSubject("inject-link-request"); |
| 127 | |
| 128 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 129 | protected StorageService storageService; |
| 130 | |
| 131 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 132 | protected MastershipService mastershipService; |
| 133 | |
| 134 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 135 | protected DeviceClockService deviceClockService; |
| 136 | |
| 137 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 138 | protected ClusterCommunicationService clusterCommunicator; |
| 139 | |
| 140 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 141 | protected ClusterService clusterService; |
| 142 | |
Ray Milkey | b7f0f64 | 2016-01-22 16:08:14 -0800 | [diff] [blame] | 143 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 144 | protected NetworkConfigRegistry netCfgService; |
| 145 | |
| 146 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 147 | protected CoreService coreService; |
| 148 | |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 149 | private EventuallyConsistentMapListener<Provided<LinkKey>, LinkDescription> linkTracker = |
| 150 | new InternalLinkTracker(); |
| 151 | |
Ray Milkey | b7f0f64 | 2016-01-22 16:08:14 -0800 | [diff] [blame] | 152 | // Listener for config changes |
| 153 | private final InternalConfigListener cfgListener = new InternalConfigListener(); |
| 154 | |
| 155 | protected LinkDiscoveryMode linkDiscoveryMode = LinkDiscoveryMode.STRICT; |
| 156 | |
HIGUCHI Yuta | e729065 | 2016-05-18 11:29:01 -0700 | [diff] [blame] | 157 | protected static final StoreSerializer SERIALIZER = StoreSerializer.using( |
| 158 | KryoNamespace.newBuilder() |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 159 | .register(DistributedStoreSerializers.STORE_COMMON) |
| 160 | .nextId(DistributedStoreSerializers.STORE_CUSTOM_BEGIN) |
| 161 | .register(Provided.class) |
HIGUCHI Yuta | e729065 | 2016-05-18 11:29:01 -0700 | [diff] [blame] | 162 | .build("ECLink")); |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 163 | |
| 164 | @Activate |
| 165 | public void activate() { |
Ray Milkey | b7f0f64 | 2016-01-22 16:08:14 -0800 | [diff] [blame] | 166 | appId = coreService.registerApplication("org.onosproject.core"); |
| 167 | netCfgService.registerConfigFactory(factory); |
| 168 | netCfgService.addListener(cfgListener); |
| 169 | |
| 170 | cfgListener.reconfigure(netCfgService.getConfig(appId, CoreConfig.class)); |
| 171 | |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 172 | KryoNamespace.Builder serializer = KryoNamespace.newBuilder() |
| 173 | .register(KryoNamespaces.API) |
| 174 | .register(MastershipBasedTimestamp.class) |
| 175 | .register(Provided.class); |
| 176 | |
| 177 | linkDescriptions = storageService.<Provided<LinkKey>, LinkDescription>eventuallyConsistentMapBuilder() |
| 178 | .withName("onos-link-descriptions") |
| 179 | .withSerializer(serializer) |
| 180 | .withTimestampProvider((k, v) -> { |
| 181 | try { |
| 182 | return v == null ? null : deviceClockService.getTimestamp(v.dst().deviceId()); |
| 183 | } catch (IllegalStateException e) { |
| 184 | return null; |
| 185 | } |
| 186 | }).build(); |
| 187 | |
| 188 | clusterCommunicator.addSubscriber(LINK_INJECT_MESSAGE, |
kircaali | 28d6768 | 2016-04-11 15:08:14 +0000 | [diff] [blame] | 189 | SERIALIZER::decode, |
| 190 | this::injectLink, |
| 191 | SERIALIZER::encode, |
| 192 | SharedExecutors.getPoolThreadExecutor()); |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 193 | |
| 194 | linkDescriptions.addListener(linkTracker); |
| 195 | |
| 196 | log.info("Started"); |
| 197 | } |
| 198 | |
| 199 | @Deactivate |
| 200 | public void deactivate() { |
| 201 | linkDescriptions.removeListener(linkTracker); |
| 202 | linkDescriptions.destroy(); |
kircaali | 28d6768 | 2016-04-11 15:08:14 +0000 | [diff] [blame] | 203 | linkProviders.clear(); |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 204 | links.clear(); |
| 205 | clusterCommunicator.removeSubscriber(LINK_INJECT_MESSAGE); |
Ray Milkey | b7f0f64 | 2016-01-22 16:08:14 -0800 | [diff] [blame] | 206 | netCfgService.removeListener(cfgListener); |
| 207 | netCfgService.unregisterConfigFactory(factory); |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 208 | |
| 209 | log.info("Stopped"); |
| 210 | } |
| 211 | |
| 212 | @Override |
| 213 | public int getLinkCount() { |
| 214 | return links.size(); |
| 215 | } |
| 216 | |
| 217 | @Override |
| 218 | public Iterable<Link> getLinks() { |
| 219 | return links.values(); |
| 220 | } |
| 221 | |
| 222 | @Override |
| 223 | public Set<Link> getDeviceEgressLinks(DeviceId deviceId) { |
| 224 | return filter(links.values(), link -> deviceId.equals(link.src().deviceId())); |
| 225 | } |
| 226 | |
| 227 | @Override |
| 228 | public Set<Link> getDeviceIngressLinks(DeviceId deviceId) { |
| 229 | return filter(links.values(), link -> deviceId.equals(link.dst().deviceId())); |
| 230 | } |
| 231 | |
| 232 | @Override |
| 233 | public Link getLink(ConnectPoint src, ConnectPoint dst) { |
| 234 | return links.get(linkKey(src, dst)); |
| 235 | } |
| 236 | |
| 237 | @Override |
| 238 | public Set<Link> getEgressLinks(ConnectPoint src) { |
| 239 | return filter(links.values(), link -> src.equals(link.src())); |
| 240 | } |
| 241 | |
| 242 | @Override |
| 243 | public Set<Link> getIngressLinks(ConnectPoint dst) { |
| 244 | return filter(links.values(), link -> dst.equals(link.dst())); |
| 245 | } |
| 246 | |
| 247 | @Override |
| 248 | public LinkEvent createOrUpdateLink(ProviderId providerId, |
| 249 | LinkDescription linkDescription) { |
| 250 | final DeviceId dstDeviceId = linkDescription.dst().deviceId(); |
| 251 | final NodeId dstNodeId = mastershipService.getMasterFor(dstDeviceId); |
| 252 | |
| 253 | // Process link update only if we're the master of the destination node, |
| 254 | // otherwise signal the actual master. |
| 255 | if (clusterService.getLocalNode().id().equals(dstNodeId)) { |
| 256 | LinkKey linkKey = linkKey(linkDescription.src(), linkDescription.dst()); |
Ayaka Koshibe | 2c59acf | 2015-09-08 15:37:47 -0700 | [diff] [blame] | 257 | Provided<LinkKey> internalLinkKey = getProvided(linkKey, providerId); |
| 258 | if (internalLinkKey == null) { |
| 259 | return null; |
| 260 | } |
Jian Li | 68c4fc4 | 2016-01-11 16:07:03 -0800 | [diff] [blame] | 261 | linkDescriptions.compute(internalLinkKey, (k, v) -> createOrUpdateLinkInternal(v, linkDescription)); |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 262 | return refreshLinkCache(linkKey); |
| 263 | } else { |
HIGUCHI Yuta | 1979f55 | 2015-12-28 21:24:26 -0800 | [diff] [blame] | 264 | // Only forward for ConfigProvider |
| 265 | // Forwarding was added as a workaround for ONOS-490 |
HIGUCHI Yuta | 4ea4e42 | 2016-01-13 16:40:34 -0800 | [diff] [blame] | 266 | if (!providerId.scheme().equals("cfg")) { |
HIGUCHI Yuta | 1979f55 | 2015-12-28 21:24:26 -0800 | [diff] [blame] | 267 | return null; |
| 268 | } |
| 269 | // Temporary hack for NPE (ONOS-1171). |
| 270 | // Proper fix is to implement forwarding to master on ConfigProvider |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 271 | if (dstNodeId == null) { |
| 272 | return null; |
| 273 | } |
| 274 | return Futures.getUnchecked(clusterCommunicator.sendAndReceive(new Provided<>(linkDescription, providerId), |
kircaali | 28d6768 | 2016-04-11 15:08:14 +0000 | [diff] [blame] | 275 | LINK_INJECT_MESSAGE, |
| 276 | SERIALIZER::encode, |
| 277 | SERIALIZER::decode, |
| 278 | dstNodeId)); |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 279 | } |
| 280 | } |
| 281 | |
Ayaka Koshibe | 2c59acf | 2015-09-08 15:37:47 -0700 | [diff] [blame] | 282 | private Provided<LinkKey> getProvided(LinkKey linkKey, ProviderId provId) { |
| 283 | ProviderId bpid = getBaseProviderId(linkKey); |
| 284 | if (provId == null) { |
| 285 | // The LinkService didn't know who this LinkKey belongs to. |
| 286 | // A fix is to either modify the getProvider() in LinkService classes |
| 287 | // or expose the contents of linkDescriptions to the LinkService. |
| 288 | return (bpid == null) ? null : new Provided<>(linkKey, bpid); |
| 289 | } else { |
| 290 | return new Provided<>(linkKey, provId); |
| 291 | } |
| 292 | } |
| 293 | |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 294 | private LinkDescription createOrUpdateLinkInternal(LinkDescription current, LinkDescription updated) { |
| 295 | if (current != null) { |
| 296 | // we only allow transition from INDIRECT -> DIRECT |
kircaali | 28d6768 | 2016-04-11 15:08:14 +0000 | [diff] [blame] | 297 | return new DefaultLinkDescription( |
| 298 | current.src(), |
| 299 | current.dst(), |
| 300 | current.type() == DIRECT ? DIRECT : updated.type(), |
| 301 | current.isExpected(), |
| 302 | union(current.annotations(), updated.annotations())); |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 303 | } |
| 304 | return updated; |
| 305 | } |
| 306 | |
kircaali | 28d6768 | 2016-04-11 15:08:14 +0000 | [diff] [blame] | 307 | private Set<ProviderId> createOrUpdateLinkProviders(Set<ProviderId> current, ProviderId providerId) { |
| 308 | if (current == null) { |
| 309 | current = Sets.newConcurrentHashSet(); |
| 310 | } |
| 311 | current.add(providerId); |
| 312 | return current; |
| 313 | } |
| 314 | |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 315 | private LinkEvent refreshLinkCache(LinkKey linkKey) { |
| 316 | AtomicReference<LinkEvent.Type> eventType = new AtomicReference<>(); |
| 317 | Link link = links.compute(linkKey, (key, existingLink) -> { |
| 318 | Link newLink = composeLink(linkKey); |
Madan Jampani | 1159186 | 2016-06-27 13:58:07 -0700 | [diff] [blame] | 319 | if (newLink == null) { |
| 320 | return null; |
| 321 | } |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 322 | if (existingLink == null) { |
| 323 | eventType.set(LINK_ADDED); |
| 324 | return newLink; |
| 325 | } else if (existingLink.state() != newLink.state() || |
kircaali | 28d6768 | 2016-04-11 15:08:14 +0000 | [diff] [blame] | 326 | existingLink.isExpected() != newLink.isExpected() || |
| 327 | (existingLink.type() == INDIRECT && newLink.type() == DIRECT) || |
| 328 | !AnnotationsUtil.isEqual(existingLink.annotations(), newLink.annotations())) { |
| 329 | eventType.set(LINK_UPDATED); |
| 330 | return newLink; |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 331 | } else { |
| 332 | return existingLink; |
| 333 | } |
| 334 | }); |
| 335 | return eventType.get() != null ? new LinkEvent(eventType.get(), link) : null; |
| 336 | } |
| 337 | |
| 338 | private Set<ProviderId> getAllProviders(LinkKey linkKey) { |
kircaali | 28d6768 | 2016-04-11 15:08:14 +0000 | [diff] [blame] | 339 | return linkProviders.getOrDefault(linkKey, Sets.newConcurrentHashSet()); |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 340 | } |
| 341 | |
| 342 | private ProviderId getBaseProviderId(LinkKey linkKey) { |
| 343 | Set<ProviderId> allProviders = getAllProviders(linkKey); |
| 344 | if (allProviders.size() > 0) { |
| 345 | return allProviders.stream() |
kircaali | 28d6768 | 2016-04-11 15:08:14 +0000 | [diff] [blame] | 346 | .filter(p -> !p.isAncillary()) |
| 347 | .findFirst() |
| 348 | .orElse(Iterables.getFirst(allProviders, null)); |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 349 | } |
| 350 | return null; |
| 351 | } |
| 352 | |
| 353 | private Link composeLink(LinkKey linkKey) { |
| 354 | |
Ray Milkey | 1bce6fb | 2016-07-15 13:38:53 -0700 | [diff] [blame] | 355 | ProviderId baseProviderId = getBaseProviderId(linkKey); |
| 356 | if (baseProviderId == null) { |
| 357 | // provider was not found, this means it was already removed by the |
| 358 | // parent component. |
| 359 | return null; |
| 360 | } |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 361 | LinkDescription base = linkDescriptions.get(new Provided<>(linkKey, baseProviderId)); |
Madan Jampani | 1159186 | 2016-06-27 13:58:07 -0700 | [diff] [blame] | 362 | // short circuit if link description no longer exists |
| 363 | if (base == null) { |
| 364 | return null; |
| 365 | } |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 366 | ConnectPoint src = base.src(); |
| 367 | ConnectPoint dst = base.dst(); |
| 368 | Type type = base.type(); |
| 369 | AtomicReference<DefaultAnnotations> annotations = new AtomicReference<>(DefaultAnnotations.builder().build()); |
| 370 | annotations.set(merge(annotations.get(), base.annotations())); |
| 371 | |
| 372 | getAllProviders(linkKey).stream() |
kircaali | 28d6768 | 2016-04-11 15:08:14 +0000 | [diff] [blame] | 373 | .map(p -> new Provided<>(linkKey, p)) |
| 374 | .forEach(key -> { |
| 375 | LinkDescription linkDescription = linkDescriptions.get(key); |
| 376 | if (linkDescription != null) { |
| 377 | annotations.set(merge(annotations.get(), |
| 378 | linkDescription.annotations())); |
| 379 | } |
| 380 | }); |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 381 | |
Ray Milkey | b7f0f64 | 2016-01-22 16:08:14 -0800 | [diff] [blame] | 382 | Link.State initialLinkState; |
| 383 | |
| 384 | boolean isExpected; |
| 385 | if (linkDiscoveryMode == LinkDiscoveryMode.PERMISSIVE) { |
| 386 | initialLinkState = ACTIVE; |
| 387 | isExpected = |
| 388 | Objects.equals(annotations.get().value(AnnotationKeys.DURABLE), "true"); |
| 389 | } else { |
| 390 | initialLinkState = base.isExpected() ? ACTIVE : INACTIVE; |
| 391 | isExpected = base.isExpected(); |
| 392 | } |
| 393 | |
| 394 | |
Ray Milkey | 2693bda | 2016-01-22 16:08:14 -0800 | [diff] [blame] | 395 | return DefaultLink.builder() |
| 396 | .providerId(baseProviderId) |
| 397 | .src(src) |
| 398 | .dst(dst) |
| 399 | .type(type) |
Ray Milkey | b7f0f64 | 2016-01-22 16:08:14 -0800 | [diff] [blame] | 400 | .state(initialLinkState) |
| 401 | .isExpected(isExpected) |
Ray Milkey | 2693bda | 2016-01-22 16:08:14 -0800 | [diff] [blame] | 402 | .annotations(annotations.get()) |
| 403 | .build(); |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 404 | } |
| 405 | |
| 406 | // Updates, if necessary the specified link and returns the appropriate event. |
| 407 | // Guarded by linkDescs value (=locking each Link) |
| 408 | private LinkEvent updateLink(LinkKey key, Link oldLink, Link newLink) { |
| 409 | // Note: INDIRECT -> DIRECT transition only |
| 410 | // so that BDDP discovered Link will not overwrite LDDP Link |
| 411 | if (oldLink.state() != newLink.state() || |
kircaali | 28d6768 | 2016-04-11 15:08:14 +0000 | [diff] [blame] | 412 | (oldLink.type() == INDIRECT && newLink.type() == DIRECT) || |
| 413 | !AnnotationsUtil.isEqual(oldLink.annotations(), newLink.annotations())) { |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 414 | |
| 415 | links.put(key, newLink); |
| 416 | return new LinkEvent(LINK_UPDATED, newLink); |
| 417 | } |
| 418 | return null; |
| 419 | } |
| 420 | |
| 421 | @Override |
| 422 | public LinkEvent removeOrDownLink(ConnectPoint src, ConnectPoint dst) { |
| 423 | Link link = getLink(src, dst); |
| 424 | if (link == null) { |
| 425 | return null; |
| 426 | } |
| 427 | |
Ray Milkey | b7f0f64 | 2016-01-22 16:08:14 -0800 | [diff] [blame] | 428 | if (linkDiscoveryMode == LinkDiscoveryMode.PERMISSIVE && link.isExpected()) { |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 429 | // FIXME: this will not sync link state!!! |
| 430 | return link.state() == INACTIVE ? null : |
| 431 | updateLink(linkKey(link.src(), link.dst()), link, |
Ray Milkey | 2693bda | 2016-01-22 16:08:14 -0800 | [diff] [blame] | 432 | DefaultLink.builder() |
| 433 | .providerId(link.providerId()) |
| 434 | .src(link.src()) |
| 435 | .dst(link.dst()) |
| 436 | .type(link.type()) |
| 437 | .state(INACTIVE) |
| 438 | .isExpected(link.isExpected()) |
| 439 | .annotations(link.annotations()) |
| 440 | .build()); |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 441 | } |
| 442 | return removeLink(src, dst); |
| 443 | } |
| 444 | |
| 445 | @Override |
| 446 | public LinkEvent removeLink(ConnectPoint src, ConnectPoint dst) { |
| 447 | final LinkKey linkKey = LinkKey.linkKey(src, dst); |
Madan Jampani | 5d4396f | 2015-09-02 16:04:20 -0700 | [diff] [blame] | 448 | ProviderId primaryProviderId = getBaseProviderId(linkKey); |
| 449 | // Stop if there is no base provider. |
| 450 | if (primaryProviderId == null) { |
| 451 | return null; |
| 452 | } |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 453 | LinkDescription removedLinkDescription = |
Madan Jampani | 5d4396f | 2015-09-02 16:04:20 -0700 | [diff] [blame] | 454 | linkDescriptions.remove(new Provided<>(linkKey, primaryProviderId)); |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 455 | if (removedLinkDescription != null) { |
| 456 | return purgeLinkCache(linkKey); |
| 457 | } |
| 458 | return null; |
| 459 | } |
| 460 | |
| 461 | private LinkEvent purgeLinkCache(LinkKey linkKey) { |
| 462 | Link removedLink = links.remove(linkKey); |
| 463 | if (removedLink != null) { |
| 464 | getAllProviders(linkKey).forEach(p -> linkDescriptions.remove(new Provided<>(linkKey, p))); |
kircaali | 28d6768 | 2016-04-11 15:08:14 +0000 | [diff] [blame] | 465 | linkProviders.remove(linkKey); |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 466 | return new LinkEvent(LINK_REMOVED, removedLink); |
| 467 | } |
| 468 | return null; |
| 469 | } |
| 470 | |
| 471 | private Set<Link> filter(Collection<Link> links, Predicate<Link> predicate) { |
| 472 | return links.stream().filter(predicate).collect(Collectors.toSet()); |
| 473 | } |
| 474 | |
| 475 | private LinkEvent injectLink(Provided<LinkDescription> linkInjectRequest) { |
| 476 | log.trace("Received request to inject link {}", linkInjectRequest); |
| 477 | |
| 478 | ProviderId providerId = linkInjectRequest.providerId(); |
| 479 | LinkDescription linkDescription = linkInjectRequest.key(); |
| 480 | |
| 481 | final DeviceId deviceId = linkDescription.dst().deviceId(); |
| 482 | if (!deviceClockService.isTimestampAvailable(deviceId)) { |
| 483 | // workaround for ONOS-1208 |
| 484 | log.warn("Not ready to accept update. Dropping {}", linkInjectRequest); |
| 485 | return null; |
| 486 | } |
| 487 | return createOrUpdateLink(providerId, linkDescription); |
| 488 | } |
| 489 | |
| 490 | private class InternalLinkTracker implements EventuallyConsistentMapListener<Provided<LinkKey>, LinkDescription> { |
| 491 | @Override |
| 492 | public void event(EventuallyConsistentMapEvent<Provided<LinkKey>, LinkDescription> event) { |
| 493 | if (event.type() == PUT) { |
kircaali | 28d6768 | 2016-04-11 15:08:14 +0000 | [diff] [blame] | 494 | linkProviders.compute(event.key().key(), (k, v) -> |
| 495 | createOrUpdateLinkProviders(v, event.key().providerId())); |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 496 | notifyDelegate(refreshLinkCache(event.key().key())); |
| 497 | } else if (event.type() == REMOVE) { |
| 498 | notifyDelegate(purgeLinkCache(event.key().key())); |
kircaali | 28d6768 | 2016-04-11 15:08:14 +0000 | [diff] [blame] | 499 | linkProviders.remove(event.key().key()); |
Madan Jampani | bad538c | 2015-08-19 17:35:27 -0700 | [diff] [blame] | 500 | } |
| 501 | } |
| 502 | } |
Ray Milkey | b7f0f64 | 2016-01-22 16:08:14 -0800 | [diff] [blame] | 503 | |
| 504 | private class InternalConfigListener implements NetworkConfigListener { |
| 505 | |
| 506 | void reconfigure(CoreConfig coreConfig) { |
| 507 | if (coreConfig == null) { |
| 508 | linkDiscoveryMode = LinkDiscoveryMode.PERMISSIVE; |
| 509 | } else { |
| 510 | linkDiscoveryMode = coreConfig.linkDiscoveryMode(); |
| 511 | } |
| 512 | if (linkDiscoveryMode == LinkDiscoveryMode.STRICT) { |
| 513 | // Remove any previous links to force them to go through the strict |
| 514 | // discovery process |
Ray Milkey | 1555127 | 2016-02-10 16:22:02 -0800 | [diff] [blame] | 515 | if (linkDescriptions != null) { |
| 516 | linkDescriptions.clear(); |
| 517 | } |
| 518 | if (links != null) { |
| 519 | links.clear(); |
| 520 | } |
Ray Milkey | b7f0f64 | 2016-01-22 16:08:14 -0800 | [diff] [blame] | 521 | } |
| 522 | log.debug("config set link discovery mode to {}", |
| 523 | linkDiscoveryMode.name()); |
| 524 | } |
| 525 | |
| 526 | @Override |
| 527 | public void event(NetworkConfigEvent event) { |
| 528 | |
| 529 | if ((event.type() == NetworkConfigEvent.Type.CONFIG_ADDED || |
| 530 | event.type() == NetworkConfigEvent.Type.CONFIG_UPDATED) && |
| 531 | event.configClass().equals(CoreConfig.class)) { |
| 532 | |
| 533 | CoreConfig cfg = netCfgService.getConfig(appId, CoreConfig.class); |
| 534 | reconfigure(cfg); |
| 535 | log.info("Reconfigured"); |
| 536 | } |
| 537 | } |
| 538 | } |
| 539 | |
| 540 | // Configuration properties factory |
| 541 | private final ConfigFactory factory = |
| 542 | new ConfigFactory<ApplicationId, CoreConfig>(APP_SUBJECT_FACTORY, |
kircaali | 28d6768 | 2016-04-11 15:08:14 +0000 | [diff] [blame] | 543 | CoreConfig.class, |
| 544 | "core") { |
Ray Milkey | b7f0f64 | 2016-01-22 16:08:14 -0800 | [diff] [blame] | 545 | @Override |
| 546 | public CoreConfig createConfig() { |
| 547 | return new CoreConfig(); |
| 548 | } |
| 549 | }; |
Ray Milkey | d0dd135 | 2016-01-19 10:58:41 -0800 | [diff] [blame] | 550 | } |