Mohammad Shahid | aa7c123 | 2017-08-09 11:13:15 +0530 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2017-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 | |
Ray Milkey | a95193c | 2017-08-10 15:35:36 -0700 | [diff] [blame] | 17 | package org.onosproject.evpnrouteservice.store; |
Mohammad Shahid | aa7c123 | 2017-08-09 11:13:15 +0530 | [diff] [blame] | 18 | |
| 19 | import org.onlab.packet.IpAddress; |
| 20 | import org.onlab.packet.IpPrefix; |
| 21 | import org.onlab.packet.MacAddress; |
| 22 | import org.onlab.util.KryoNamespace; |
Ray Milkey | a95193c | 2017-08-10 15:35:36 -0700 | [diff] [blame] | 23 | import org.onosproject.evpnrouteservice.EvpnInternalRouteEvent; |
| 24 | import org.onosproject.evpnrouteservice.EvpnPrefix; |
| 25 | import org.onosproject.evpnrouteservice.EvpnRoute; |
| 26 | import org.onosproject.evpnrouteservice.EvpnRouteSet; |
| 27 | import org.onosproject.evpnrouteservice.EvpnRouteStoreDelegate; |
| 28 | import org.onosproject.evpnrouteservice.EvpnRouteTableId; |
| 29 | import org.onosproject.evpnrouteservice.EvpnTable; |
| 30 | import org.onosproject.evpnrouteservice.Label; |
| 31 | import org.onosproject.evpnrouteservice.RouteDistinguisher; |
| 32 | import org.onosproject.evpnrouteservice.VpnRouteTarget; |
Mohammad Shahid | aa7c123 | 2017-08-09 11:13:15 +0530 | [diff] [blame] | 33 | import org.onosproject.store.serializers.KryoNamespaces; |
| 34 | import org.onosproject.store.service.ConsistentMap; |
| 35 | import org.onosproject.store.service.DistributedPrimitive; |
| 36 | import org.onosproject.store.service.MapEvent; |
| 37 | import org.onosproject.store.service.MapEventListener; |
| 38 | import org.onosproject.store.service.Serializer; |
| 39 | import org.onosproject.store.service.StorageService; |
| 40 | import org.onosproject.store.service.Versioned; |
| 41 | |
| 42 | import java.util.Collection; |
| 43 | import java.util.Collections; |
| 44 | import java.util.HashSet; |
| 45 | import java.util.Set; |
| 46 | import java.util.concurrent.ExecutorService; |
| 47 | import java.util.function.Consumer; |
| 48 | import java.util.stream.Collectors; |
| 49 | |
| 50 | import static com.google.common.base.Preconditions.checkNotNull; |
| 51 | |
| 52 | /** |
| 53 | * Default implementation of a route table based on a consistent map. |
| 54 | */ |
| 55 | public class EvpnRouteTable implements EvpnTable { |
| 56 | |
Jonathan Hart | e9c0c6e | 2017-08-09 16:44:13 -0700 | [diff] [blame] | 57 | private final EvpnRouteTableId id; |
Mohammad Shahid | aa7c123 | 2017-08-09 11:13:15 +0530 | [diff] [blame] | 58 | private final ConsistentMap<EvpnPrefix, Set<EvpnRoute>> routes; |
| 59 | private final EvpnRouteStoreDelegate delegate; |
| 60 | private final ExecutorService executor; |
| 61 | private final RouteTableListener listener = new RouteTableListener(); |
| 62 | |
| 63 | private final Consumer<DistributedPrimitive.Status> statusChangeListener; |
| 64 | |
| 65 | /** |
| 66 | * Creates a new route table. |
| 67 | * |
| 68 | * @param id route table ID |
| 69 | * @param delegate route store delegate to notify of events |
| 70 | * @param storageService storage service |
| 71 | * @param executor executor service |
| 72 | */ |
Jonathan Hart | e9c0c6e | 2017-08-09 16:44:13 -0700 | [diff] [blame] | 73 | public EvpnRouteTable(EvpnRouteTableId id, EvpnRouteStoreDelegate delegate, |
Mohammad Shahid | aa7c123 | 2017-08-09 11:13:15 +0530 | [diff] [blame] | 74 | StorageService storageService, ExecutorService executor) { |
| 75 | this.delegate = checkNotNull(delegate); |
| 76 | this.id = checkNotNull(id); |
| 77 | this.routes = buildRouteMap(checkNotNull(storageService)); |
| 78 | this.executor = checkNotNull(executor); |
| 79 | |
| 80 | statusChangeListener = status -> { |
| 81 | if (status.equals(DistributedPrimitive.Status.ACTIVE)) { |
| 82 | executor.execute(this::notifyExistingRoutes); |
| 83 | } |
| 84 | }; |
| 85 | routes.addStatusChangeListener(statusChangeListener); |
| 86 | |
| 87 | notifyExistingRoutes(); |
| 88 | |
| 89 | routes.addListener(listener); |
| 90 | } |
| 91 | |
| 92 | private void notifyExistingRoutes() { |
| 93 | routes.entrySet().stream() |
| 94 | .map(e -> new EvpnInternalRouteEvent( |
| 95 | EvpnInternalRouteEvent.Type.ROUTE_ADDED, |
| 96 | new EvpnRouteSet(id, e.getKey(), e.getValue().value()))) |
| 97 | .forEach(delegate::notify); |
| 98 | } |
| 99 | |
| 100 | private ConsistentMap<EvpnPrefix, Set<EvpnRoute>> buildRouteMap(StorageService |
| 101 | storageService) { |
| 102 | KryoNamespace routeTableSerializer = KryoNamespace.newBuilder() |
| 103 | .register(KryoNamespaces.API) |
| 104 | .register(KryoNamespaces.MISC) |
Mohammad Shahid | aa7c123 | 2017-08-09 11:13:15 +0530 | [diff] [blame] | 105 | .register(EvpnRoute.class) |
| 106 | .register(EvpnPrefix.class) |
| 107 | .register(RouteDistinguisher.class) |
| 108 | .register(MacAddress.class) |
| 109 | .register(IpPrefix.class) |
| 110 | .register(EvpnRoute.Source.class) |
| 111 | .register(IpAddress.class) |
| 112 | .register(VpnRouteTarget.class) |
| 113 | .register(Label.class) |
Jonathan Hart | e9c0c6e | 2017-08-09 16:44:13 -0700 | [diff] [blame] | 114 | .register(EvpnRouteTableId.class) |
Mohammad Shahid | aa7c123 | 2017-08-09 11:13:15 +0530 | [diff] [blame] | 115 | .build(); |
| 116 | return storageService.<EvpnPrefix, Set<EvpnRoute>>consistentMapBuilder() |
| 117 | .withName("onos-evpn-routes-" + id.name()) |
| 118 | .withRelaxedReadConsistency() |
| 119 | .withSerializer(Serializer.using(routeTableSerializer)) |
| 120 | .build(); |
| 121 | } |
| 122 | |
| 123 | @Override |
Jonathan Hart | e9c0c6e | 2017-08-09 16:44:13 -0700 | [diff] [blame] | 124 | public EvpnRouteTableId id() { |
Mohammad Shahid | aa7c123 | 2017-08-09 11:13:15 +0530 | [diff] [blame] | 125 | return id; |
| 126 | } |
| 127 | |
| 128 | @Override |
| 129 | public void shutdown() { |
| 130 | routes.removeStatusChangeListener(statusChangeListener); |
| 131 | routes.removeListener(listener); |
| 132 | } |
| 133 | |
| 134 | @Override |
| 135 | public void destroy() { |
| 136 | shutdown(); |
| 137 | routes.destroy(); |
| 138 | } |
| 139 | |
| 140 | @Override |
| 141 | public void update(EvpnRoute route) { |
| 142 | routes.compute(route.evpnPrefix(), (prefix, set) -> { |
| 143 | if (set == null) { |
| 144 | set = new HashSet<>(); |
| 145 | } |
| 146 | set.add(route); |
| 147 | return set; |
| 148 | }); |
| 149 | } |
| 150 | |
| 151 | @Override |
| 152 | public void remove(EvpnRoute route) { |
| 153 | routes.compute(route.evpnPrefix(), (prefix, set) -> { |
| 154 | if (set != null) { |
| 155 | set.remove(route); |
| 156 | if (set.isEmpty()) { |
| 157 | return null; |
| 158 | } |
| 159 | return set; |
| 160 | } |
| 161 | return null; |
| 162 | }); |
| 163 | } |
| 164 | |
| 165 | @Override |
| 166 | public Collection<EvpnRouteSet> getRoutes() { |
| 167 | return routes.entrySet().stream() |
| 168 | .map(e -> new EvpnRouteSet(id, e.getKey(), e.getValue().value())) |
| 169 | .collect(Collectors.toSet()); |
| 170 | } |
| 171 | |
| 172 | @Override |
| 173 | public EvpnRouteSet getRoutes(EvpnPrefix prefix) { |
| 174 | Versioned<Set<EvpnRoute>> routeSet = routes.get(prefix); |
| 175 | |
| 176 | if (routeSet != null) { |
| 177 | return new EvpnRouteSet(id, prefix, routeSet.value()); |
| 178 | } |
| 179 | return null; |
| 180 | } |
| 181 | |
| 182 | @Override |
| 183 | public Collection<EvpnRoute> getRoutesForNextHop(IpAddress nextHop) { |
| 184 | // TODO index |
| 185 | return routes.values().stream() |
| 186 | .flatMap(v -> v.value().stream()) |
| 187 | .filter(r -> r.nextHop().equals(nextHop)) |
| 188 | .collect(Collectors.toSet()); |
| 189 | } |
| 190 | |
| 191 | private class RouteTableListener |
| 192 | implements MapEventListener<EvpnPrefix, Set<EvpnRoute>> { |
| 193 | |
| 194 | private EvpnInternalRouteEvent createRouteEvent( |
| 195 | EvpnInternalRouteEvent.Type type, MapEvent<EvpnPrefix, Set<EvpnRoute>> |
| 196 | event) { |
| 197 | Set<EvpnRoute> currentRoutes = |
| 198 | (event.newValue() == null) ? Collections.emptySet() : event.newValue().value(); |
| 199 | return new EvpnInternalRouteEvent(type, new EvpnRouteSet(id, event |
| 200 | .key(), currentRoutes)); |
| 201 | } |
| 202 | |
| 203 | @Override |
| 204 | public void event(MapEvent<EvpnPrefix, Set<EvpnRoute>> event) { |
| 205 | EvpnInternalRouteEvent ire = null; |
| 206 | switch (event.type()) { |
| 207 | case INSERT: |
| 208 | ire = createRouteEvent(EvpnInternalRouteEvent.Type.ROUTE_ADDED, event); |
| 209 | break; |
| 210 | case UPDATE: |
| 211 | if (event.newValue().value().size() > event.oldValue().value().size()) { |
| 212 | ire = createRouteEvent(EvpnInternalRouteEvent.Type.ROUTE_ADDED, event); |
| 213 | } else { |
| 214 | ire = createRouteEvent(EvpnInternalRouteEvent.Type.ROUTE_REMOVED, event); |
| 215 | } |
| 216 | break; |
| 217 | case REMOVE: |
| 218 | ire = createRouteEvent(EvpnInternalRouteEvent.Type.ROUTE_REMOVED, event); |
| 219 | break; |
| 220 | default: |
| 221 | break; |
| 222 | } |
| 223 | if (ire != null) { |
| 224 | delegate.notify(ire); |
| 225 | } |
| 226 | } |
| 227 | } |
| 228 | |
| 229 | } |
| 230 | |