Andrea Campanella | 545edb4 | 2018-03-20 16:37:29 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2015-present Open Networking Foundation |
| 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.mcast.impl; |
| 17 | |
| 18 | import com.google.common.collect.ImmutableSet; |
| 19 | import org.apache.felix.scr.annotations.Activate; |
| 20 | import org.apache.felix.scr.annotations.Component; |
| 21 | import org.apache.felix.scr.annotations.Deactivate; |
| 22 | import org.apache.felix.scr.annotations.Reference; |
| 23 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
| 24 | import org.apache.felix.scr.annotations.Service; |
| 25 | import org.onlab.packet.IpAddress; |
| 26 | import org.onosproject.event.AbstractListenerManager; |
| 27 | import org.onosproject.mcast.api.McastEvent; |
| 28 | import org.onosproject.mcast.api.McastListener; |
| 29 | import org.onosproject.mcast.api.McastRoute; |
| 30 | import org.onosproject.mcast.api.McastRouteData; |
| 31 | import org.onosproject.mcast.api.McastStore; |
| 32 | import org.onosproject.mcast.api.McastStoreDelegate; |
| 33 | import org.onosproject.mcast.api.MulticastRouteService; |
| 34 | import org.onosproject.net.ConnectPoint; |
| 35 | import org.onosproject.net.Host; |
| 36 | import org.onosproject.net.HostId; |
| 37 | import org.onosproject.net.host.HostEvent; |
| 38 | import org.onosproject.net.host.HostListener; |
| 39 | import org.onosproject.net.host.HostService; |
| 40 | import org.slf4j.Logger; |
| 41 | |
| 42 | import java.util.HashSet; |
| 43 | import java.util.Optional; |
| 44 | import java.util.Set; |
| 45 | |
| 46 | import static com.google.common.base.Preconditions.checkNotNull; |
| 47 | import static org.slf4j.LoggerFactory.getLogger; |
| 48 | |
| 49 | /** |
| 50 | * An implementation of a multicast route table. |
| 51 | */ |
| 52 | @Component(immediate = true) |
| 53 | @Service |
| 54 | public class MulticastRouteManager |
| 55 | extends AbstractListenerManager<McastEvent, McastListener> |
| 56 | implements MulticastRouteService { |
| 57 | //TODO: add MulticastRouteAdminService |
| 58 | |
| 59 | private Logger log = getLogger(getClass()); |
| 60 | |
| 61 | private final McastStoreDelegate delegate = new InternalMcastStoreDelegate(); |
| 62 | |
| 63 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 64 | protected McastStore store; |
| 65 | |
| 66 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 67 | protected HostService hostService; |
| 68 | |
| 69 | private HostListener hostListener = new InternalHostListener(); |
| 70 | |
| 71 | @Activate |
| 72 | public void activate() { |
| 73 | hostService.addListener(hostListener); |
| 74 | eventDispatcher.addSink(McastEvent.class, listenerRegistry); |
| 75 | store.setDelegate(delegate); |
| 76 | log.info("Started"); |
| 77 | } |
| 78 | |
| 79 | @Deactivate |
| 80 | public void deactivate() { |
| 81 | hostService.removeListener(hostListener); |
| 82 | store.unsetDelegate(delegate); |
| 83 | eventDispatcher.removeSink(McastEvent.class); |
| 84 | log.info("Stopped"); |
| 85 | } |
| 86 | |
| 87 | @Override |
| 88 | public void add(McastRoute route) { |
| 89 | checkNotNull(route, "Route cannot be null"); |
| 90 | store.storeRoute(route); |
| 91 | } |
| 92 | |
| 93 | @Override |
| 94 | public void remove(McastRoute route) { |
| 95 | checkNotNull(route, "Route cannot be null"); |
| 96 | if (checkRoute(route)) { |
| 97 | store.removeRoute(route); |
| 98 | } |
| 99 | } |
| 100 | |
| 101 | @Override |
| 102 | public Set<McastRoute> getRoutes() { |
| 103 | return store.getRoutes(); |
| 104 | } |
| 105 | |
| 106 | @Override |
| 107 | public Optional<McastRoute> getRoute(IpAddress groupIp, IpAddress sourceIp) { |
| 108 | return store.getRoutes().stream().filter(route -> |
| 109 | route.group().equals(groupIp) && |
| 110 | route.source().isPresent() && |
| 111 | route.source().get().equals(sourceIp)).findAny(); |
| 112 | } |
| 113 | |
| 114 | @Override |
| 115 | public void addSources(McastRoute route, Set<ConnectPoint> connectPoints) { |
| 116 | checkNotNull(route, "Route cannot be null"); |
| 117 | checkNotNull(connectPoints, "Source cannot be null"); |
| 118 | if (checkRoute(route)) { |
| 119 | store.storeSources(route, connectPoints); |
| 120 | } |
| 121 | } |
| 122 | |
| 123 | @Override |
| 124 | public void removeSources(McastRoute route) { |
| 125 | checkNotNull(route, "Route cannot be null"); |
| 126 | if (checkRoute(route)) { |
| 127 | store.removeSources(route); |
| 128 | } |
| 129 | } |
| 130 | |
| 131 | @Override |
| 132 | public void removeSources(McastRoute route, Set<ConnectPoint> sources) { |
| 133 | checkNotNull(route, "Route cannot be null"); |
| 134 | checkNotNull(sources, "Source cannot be null"); |
| 135 | if (checkRoute(route)) { |
| 136 | store.removeSources(route, sources); |
| 137 | } |
| 138 | } |
| 139 | |
| 140 | @Override |
| 141 | public void addSink(McastRoute route, HostId hostId) { |
| 142 | if (checkRoute(route)) { |
| 143 | Set<ConnectPoint> sinks = new HashSet<>(); |
| 144 | Host host = hostService.getHost(hostId); |
| 145 | if (host != null) { |
| 146 | host.locations().forEach(hostLocation -> sinks.add( |
| 147 | ConnectPoint.deviceConnectPoint(hostLocation.deviceId() + "/" + hostLocation.port()))); |
| 148 | } |
| 149 | store.addSink(route, hostId, sinks); |
| 150 | } |
| 151 | |
| 152 | } |
| 153 | |
| 154 | @Override |
| 155 | public void addSink(McastRoute route, Set<ConnectPoint> sinks) { |
| 156 | checkNotNull(route, "Route cannot be null"); |
| 157 | checkNotNull(sinks, "Sinks cannot be null"); |
| 158 | if (checkRoute(route)) { |
| 159 | store.addSinks(route, sinks); |
| 160 | } |
| 161 | } |
| 162 | |
| 163 | @Override |
| 164 | public void removeSinks(McastRoute route) { |
| 165 | checkNotNull(route, "Route cannot be null"); |
| 166 | if (checkRoute(route)) { |
| 167 | store.removeSinks(route); |
| 168 | } |
| 169 | } |
| 170 | |
| 171 | @Override |
| 172 | public void removeSink(McastRoute route, HostId hostId) { |
| 173 | checkNotNull(route, "Route cannot be null"); |
| 174 | checkNotNull(hostId, "Host cannot be null"); |
| 175 | if (checkRoute(route)) { |
| 176 | store.removeSink(route, hostId); |
| 177 | } |
| 178 | } |
| 179 | |
| 180 | @Override |
| 181 | public void removeSinks(McastRoute route, HostId hostId, Set<ConnectPoint> connectPoints) { |
| 182 | checkNotNull(route, "Route cannot be null"); |
| 183 | if (checkRoute(route)) { |
| 184 | store.removeSinks(route, hostId, connectPoints); |
| 185 | } |
| 186 | |
| 187 | } |
| 188 | |
| 189 | @Override |
| 190 | public void removeSinks(McastRoute route, Set<ConnectPoint> connectPoints) { |
| 191 | checkNotNull(route, "Route cannot be null"); |
| 192 | if (checkRoute(route)) { |
| 193 | store.removeSinks(route, HostId.NONE, connectPoints); |
| 194 | } |
| 195 | } |
| 196 | |
| 197 | @Override |
| 198 | public McastRouteData routeData(McastRoute route) { |
| 199 | checkNotNull(route, "Route cannot be null"); |
| 200 | return checkRoute(route) ? store.getRouteData(route) : null; |
| 201 | } |
| 202 | |
| 203 | @Override |
| 204 | public Set<ConnectPoint> sources(McastRoute route) { |
| 205 | checkNotNull(route, "Route cannot be null"); |
| 206 | return checkRoute(route) ? store.sourcesFor(route) : ImmutableSet.of(); |
| 207 | } |
| 208 | |
| 209 | @Override |
| 210 | public Set<ConnectPoint> sinks(McastRoute route) { |
| 211 | checkNotNull(route, "Route cannot be null"); |
| 212 | return checkRoute(route) ? store.sinksFor(route) : ImmutableSet.of(); |
| 213 | } |
| 214 | |
| 215 | @Override |
| 216 | public Set<ConnectPoint> sinks(McastRoute route, HostId hostId) { |
| 217 | checkNotNull(route, "Route cannot be null"); |
| 218 | return checkRoute(route) ? store.sinksFor(route, hostId) : ImmutableSet.of(); |
| 219 | } |
| 220 | |
| 221 | @Override |
| 222 | public Set<ConnectPoint> nonHostSinks(McastRoute route) { |
| 223 | checkNotNull(route, "Route cannot be null"); |
| 224 | return checkRoute(route) ? store.sinksFor(route, HostId.NONE) : ImmutableSet.of(); |
| 225 | } |
| 226 | |
| 227 | private class InternalMcastStoreDelegate implements McastStoreDelegate { |
| 228 | @Override |
| 229 | public void notify(McastEvent event) { |
| 230 | log.debug("Event: {}", event); |
| 231 | post(event); |
| 232 | } |
| 233 | } |
| 234 | |
| 235 | private boolean checkRoute(McastRoute route) { |
| 236 | if (store.getRoutes().contains(route)) { |
| 237 | return true; |
| 238 | } else { |
| 239 | log.warn("Route {} is not present in the store, please add it", route); |
| 240 | } |
| 241 | return false; |
| 242 | } |
| 243 | |
| 244 | private class InternalHostListener implements HostListener { |
| 245 | |
| 246 | @Override |
| 247 | public void event(HostEvent event) { |
| 248 | HostId hostId = event.subject().id(); |
| 249 | Set<ConnectPoint> sinks = new HashSet<>(); |
| 250 | log.debug("{} event", event); |
| 251 | //FIXME ther must be a better way |
| 252 | event.subject().locations().forEach(hostLocation -> sinks.add( |
| 253 | ConnectPoint.deviceConnectPoint(hostLocation.deviceId() + "/" + hostLocation.port()))); |
| 254 | switch (event.type()) { |
| 255 | case HOST_ADDED: |
| 256 | case HOST_UPDATED: |
| 257 | case HOST_MOVED: |
| 258 | if ((event.prevSubject() == null && event.subject() != null) |
| 259 | || (event.prevSubject().locations().size() > event.subject().locations().size())) { |
| 260 | store.getRoutes().stream().filter(mcastRoute -> { |
| 261 | return store.getRouteData(mcastRoute).sinks().get(hostId) != null; |
| 262 | }).forEach(route -> { |
| 263 | store.removeSinks(route, hostId, sinks); |
| 264 | }); |
| 265 | } else if (event.prevSubject().locations().size() < event.subject().locations().size()) { |
| 266 | store.getRoutes().stream().filter(mcastRoute -> { |
| 267 | return store.getRouteData(mcastRoute).sinks().get(hostId) != null; |
| 268 | }).forEach(route -> { |
| 269 | store.addSink(route, hostId, sinks); |
| 270 | }); |
| 271 | } |
| 272 | break; |
| 273 | case HOST_REMOVED: |
| 274 | store.getRoutes().stream().filter(mcastRoute -> { |
| 275 | return store.getRouteData(mcastRoute).sinks().get(hostId) != null; |
| 276 | }).forEach(route -> { |
| 277 | store.removeSink(route, hostId); |
| 278 | }); |
| 279 | default: |
| 280 | log.debug("Host event {} not supported", event.type()); |
| 281 | } |
| 282 | } |
| 283 | } |
| 284 | } |