alshabib | 7bb0501 | 2015-08-05 10:15:09 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2015 Open Networking Laboratory |
| 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.incubator.store.meter.impl; |
| 17 | |
| 18 | import org.apache.felix.scr.annotations.Activate; |
| 19 | import org.apache.felix.scr.annotations.Deactivate; |
| 20 | import org.apache.felix.scr.annotations.Property; |
| 21 | import org.apache.felix.scr.annotations.Reference; |
| 22 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
| 23 | import org.onlab.util.KryoNamespace; |
| 24 | import org.onlab.util.Tools; |
| 25 | import org.onosproject.cluster.ClusterService; |
| 26 | import org.onosproject.cluster.NodeId; |
| 27 | import org.onosproject.incubator.net.meter.DefaultBand; |
| 28 | import org.onosproject.incubator.net.meter.DefaultMeter; |
| 29 | import org.onosproject.incubator.net.meter.Meter; |
| 30 | import org.onosproject.incubator.net.meter.MeterEvent; |
| 31 | import org.onosproject.incubator.net.meter.MeterFailReason; |
| 32 | import org.onosproject.incubator.net.meter.MeterId; |
| 33 | import org.onosproject.incubator.net.meter.MeterOperation; |
| 34 | import org.onosproject.incubator.net.meter.MeterStore; |
| 35 | import org.onosproject.incubator.net.meter.MeterStoreDelegate; |
| 36 | import org.onosproject.mastership.MastershipService; |
| 37 | import org.onosproject.store.AbstractStore; |
| 38 | import org.onosproject.store.cluster.messaging.ClusterCommunicationService; |
| 39 | import org.onosproject.store.cluster.messaging.MessageSubject; |
| 40 | import org.onosproject.store.service.ConsistentMap; |
| 41 | import org.onosproject.store.service.Serializer; |
| 42 | import org.onosproject.store.service.StorageService; |
| 43 | import org.slf4j.Logger; |
| 44 | |
| 45 | import java.util.Collection; |
| 46 | import java.util.Objects; |
| 47 | import java.util.concurrent.ExecutorService; |
| 48 | import java.util.concurrent.Executors; |
| 49 | import java.util.stream.Collectors; |
| 50 | |
| 51 | import static org.slf4j.LoggerFactory.getLogger; |
| 52 | |
| 53 | /** |
| 54 | * A distributed meter store implementation. Meters are stored consistently |
| 55 | * across the cluster. |
| 56 | */ |
| 57 | public class DistributedMeterStore extends AbstractStore<MeterEvent, MeterStoreDelegate> |
| 58 | implements MeterStore { |
| 59 | |
| 60 | private Logger log = getLogger(getClass()); |
| 61 | |
| 62 | private static final String METERSTORE = "onos-meter-store"; |
| 63 | private static final int MESSAGE_HANDLER_THREAD_POOL_SIZE = 8; |
| 64 | |
| 65 | private static final MessageSubject UPDATE_METER = new MessageSubject("peer-mod-meter"); |
| 66 | |
| 67 | |
| 68 | @Property(name = "msgHandlerPoolSize", intValue = MESSAGE_HANDLER_THREAD_POOL_SIZE, |
| 69 | label = "Number of threads in the message handler pool") |
| 70 | private int msgPoolSize; |
| 71 | |
| 72 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 73 | private StorageService storageService; |
| 74 | |
| 75 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 76 | private ClusterCommunicationService clusterCommunicationService; |
| 77 | |
| 78 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 79 | private MastershipService mastershipService; |
| 80 | |
| 81 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 82 | private ClusterService clusterService; |
| 83 | |
| 84 | private ConsistentMap<MeterId, Meter> meters; |
| 85 | private NodeId local; |
| 86 | private KryoNamespace kryoNameSpace; |
| 87 | |
| 88 | private Serializer serializer; |
| 89 | |
| 90 | @Activate |
| 91 | public void activate() { |
| 92 | |
| 93 | local = clusterService.getLocalNode().id(); |
| 94 | |
| 95 | kryoNameSpace = |
| 96 | KryoNamespace.newBuilder() |
| 97 | .register(DefaultMeter.class) |
| 98 | .register(DefaultBand.class) |
| 99 | .build(); |
| 100 | |
| 101 | serializer = Serializer.using(kryoNameSpace); |
| 102 | |
| 103 | meters = storageService.<MeterId, Meter>consistentMapBuilder() |
| 104 | .withName(METERSTORE) |
| 105 | .withSerializer(serializer) |
| 106 | .build(); |
| 107 | |
| 108 | ExecutorService executors = Executors.newFixedThreadPool( |
| 109 | msgPoolSize, Tools.groupedThreads("onos/store/meter", "message-handlers")); |
| 110 | registerMessageHandlers(executors); |
| 111 | |
| 112 | log.info("Started"); |
| 113 | } |
| 114 | |
| 115 | @Deactivate |
| 116 | public void deactivate() { |
| 117 | |
| 118 | |
| 119 | log.info("Stopped"); |
| 120 | } |
| 121 | |
| 122 | private void registerMessageHandlers(ExecutorService executor) { |
| 123 | clusterCommunicationService.<MeterEvent>addSubscriber(UPDATE_METER, kryoNameSpace::deserialize, |
| 124 | this::notifyDelegate, executor); |
| 125 | |
| 126 | } |
| 127 | |
| 128 | |
| 129 | @Override |
| 130 | public void storeMeter(Meter meter) { |
| 131 | NodeId master = mastershipService.getMasterFor(meter.deviceId()); |
| 132 | |
| 133 | meters.put(meter.id(), meter); |
| 134 | |
| 135 | MeterEvent event = new MeterEvent(MeterEvent.Type.METER_OP_REQ, |
| 136 | new MeterOperation(meter, MeterOperation.Type.ADD)); |
| 137 | if (Objects.equals(local, master)) { |
| 138 | notifyDelegate(event); |
| 139 | } else { |
| 140 | clusterCommunicationService.unicast( |
| 141 | event, |
| 142 | UPDATE_METER, |
| 143 | serializer::encode, |
| 144 | master |
| 145 | ).whenComplete((result, error) -> { |
| 146 | if (error != null) { |
| 147 | log.warn("Failed to install meter {} because {} on {}", |
| 148 | meter, error, master); |
| 149 | |
| 150 | // notify app of failure |
| 151 | meter.context().ifPresent(c -> c.onError( |
| 152 | event.subject(), MeterFailReason.UNKNOWN)); |
| 153 | } |
| 154 | }); |
| 155 | } |
| 156 | |
| 157 | } |
| 158 | |
| 159 | @Override |
| 160 | public void deleteMeter(Meter meter) { |
| 161 | |
| 162 | NodeId master = mastershipService.getMasterFor(meter.deviceId()); |
| 163 | |
| 164 | // update the state of the meter. It will be pruned by observing |
| 165 | // that it has been removed from the dataplane. |
| 166 | meters.put(meter.id(), meter); |
| 167 | |
| 168 | MeterEvent event = new MeterEvent(MeterEvent.Type.METER_OP_REQ, |
| 169 | new MeterOperation(meter, MeterOperation.Type.REMOVE)); |
| 170 | if (Objects.equals(local, master)) { |
| 171 | notifyDelegate(event); |
| 172 | } else { |
| 173 | clusterCommunicationService.unicast( |
| 174 | event, |
| 175 | UPDATE_METER, |
| 176 | serializer::encode, |
| 177 | master |
| 178 | ).whenComplete((result, error) -> { |
| 179 | if (error != null) { |
| 180 | log.warn("Failed to delete meter {} because {} on {}", |
| 181 | meter, error, master); |
| 182 | |
| 183 | // notify app of failure |
| 184 | meter.context().ifPresent(c -> c.onError( |
| 185 | event.subject(), MeterFailReason.UNKNOWN)); |
| 186 | } |
| 187 | }); |
| 188 | } |
| 189 | |
| 190 | } |
| 191 | |
| 192 | @Override |
| 193 | public void updateMeter(Meter meter) { |
| 194 | |
| 195 | NodeId master = mastershipService.getMasterFor(meter.deviceId()); |
| 196 | |
| 197 | meters.put(meter.id(), meter); |
| 198 | |
| 199 | MeterEvent event = new MeterEvent(MeterEvent.Type.METER_OP_REQ, |
| 200 | new MeterOperation(meter, MeterOperation.Type.MODIFY)); |
| 201 | if (Objects.equals(local, master)) { |
| 202 | notifyDelegate(event); |
| 203 | } else { |
| 204 | clusterCommunicationService.unicast( |
| 205 | event, |
| 206 | UPDATE_METER, |
| 207 | serializer::encode, |
| 208 | master |
| 209 | ).whenComplete((result, error) -> { |
| 210 | if (error != null) { |
| 211 | log.warn("Failed to update meter {} because {} on {}", |
| 212 | meter, error, master); |
| 213 | |
| 214 | // notify app of failure |
| 215 | meter.context().ifPresent(c -> c.onError( |
| 216 | event.subject(), MeterFailReason.UNKNOWN)); |
| 217 | } |
| 218 | }); |
| 219 | } |
| 220 | |
| 221 | } |
| 222 | |
| 223 | @Override |
| 224 | public void updateMeterState(Meter meter) { |
| 225 | meters.compute(meter.id(), (id, v) -> { |
| 226 | DefaultMeter m = (DefaultMeter) v; |
| 227 | m.setState(meter.state()); |
| 228 | m.setProcessedPackets(meter.packetsSeen()); |
| 229 | m.setProcessedBytes(meter.bytesSeen()); |
| 230 | m.setLife(meter.life()); |
| 231 | m.setReferenceCount(meter.referenceCount()); |
| 232 | return m; |
| 233 | }); |
| 234 | } |
| 235 | |
| 236 | @Override |
| 237 | public Meter getMeter(MeterId meterId) { |
| 238 | return meters.get(meterId).value(); |
| 239 | } |
| 240 | |
| 241 | @Override |
| 242 | public Collection<Meter> getAllMeters() { |
| 243 | return meters.values().stream() |
| 244 | .map(v -> v.value()).collect(Collectors.toSet()); |
| 245 | } |
| 246 | |
| 247 | @Override |
| 248 | public void failedMeter(MeterOperation op, MeterFailReason reason) { |
| 249 | NodeId master = mastershipService.getMasterFor(op.meter().deviceId()); |
| 250 | meters.remove(op.meter().id()); |
| 251 | |
| 252 | MeterEvent event = new MeterEvent(MeterEvent.Type.METER_OP_FAILED, op, reason); |
| 253 | if (Objects.equals(local, master)) { |
| 254 | notifyDelegate(event); |
| 255 | } else { |
| 256 | clusterCommunicationService.unicast( |
| 257 | event, |
| 258 | UPDATE_METER, |
| 259 | serializer::encode, |
| 260 | master |
| 261 | ).whenComplete((result, error) -> { |
| 262 | if (error != null) { |
| 263 | log.warn("Failed to delete failed meter {} because {} on {}", |
| 264 | op.meter(), error, master); |
| 265 | |
| 266 | // Can't do any more... |
| 267 | } |
| 268 | }); |
| 269 | } |
| 270 | |
| 271 | } |
| 272 | |
| 273 | } |