yoonseon | 9467211 | 2017-01-31 13:46:21 -0800 | [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 | |
| 17 | package org.onosproject.incubator.net.virtual.impl; |
| 18 | |
| 19 | import com.google.common.collect.Maps; |
| 20 | import org.apache.commons.lang3.tuple.Pair; |
| 21 | import org.onlab.util.TriConsumer; |
| 22 | import org.onosproject.incubator.net.virtual.NetworkId; |
| 23 | import org.onosproject.incubator.net.virtual.VirtualNetworkMeterStore; |
| 24 | import org.onosproject.incubator.net.virtual.VirtualNetworkService; |
| 25 | import org.onosproject.incubator.net.virtual.event.AbstractVirtualListenerManager; |
| 26 | import org.onosproject.incubator.net.virtual.provider.AbstractVirtualProviderService; |
| 27 | import org.onosproject.incubator.net.virtual.provider.VirtualMeterProvider; |
| 28 | import org.onosproject.incubator.net.virtual.provider.VirtualMeterProviderService; |
| 29 | import org.onosproject.incubator.net.virtual.provider.VirtualProviderRegistryService; |
| 30 | import org.onosproject.net.DeviceId; |
| 31 | import org.onosproject.net.meter.DefaultMeter; |
| 32 | import org.onosproject.net.meter.Meter; |
| 33 | import org.onosproject.net.meter.MeterEvent; |
| 34 | import org.onosproject.net.meter.MeterFailReason; |
| 35 | import org.onosproject.net.meter.MeterFeatures; |
| 36 | import org.onosproject.net.meter.MeterFeaturesKey; |
| 37 | import org.onosproject.net.meter.MeterId; |
| 38 | import org.onosproject.net.meter.MeterKey; |
| 39 | import org.onosproject.net.meter.MeterListener; |
| 40 | import org.onosproject.net.meter.MeterOperation; |
| 41 | import org.onosproject.net.meter.MeterRequest; |
| 42 | import org.onosproject.net.meter.MeterService; |
| 43 | import org.onosproject.net.meter.MeterState; |
| 44 | import org.onosproject.net.meter.MeterStoreDelegate; |
| 45 | import org.onosproject.net.meter.MeterStoreResult; |
| 46 | import org.onosproject.net.provider.ProviderId; |
| 47 | import org.onosproject.store.service.AtomicCounter; |
| 48 | import org.onosproject.store.service.StorageService; |
| 49 | import org.slf4j.Logger; |
| 50 | |
| 51 | import java.util.Collection; |
| 52 | import java.util.Map; |
| 53 | import java.util.Set; |
| 54 | import java.util.function.Function; |
| 55 | import java.util.stream.Collectors; |
| 56 | |
| 57 | import static org.slf4j.LoggerFactory.getLogger; |
| 58 | |
| 59 | public class VirtualNetworkMeterManager |
| 60 | extends AbstractVirtualListenerManager<MeterEvent, MeterListener> |
| 61 | implements MeterService { |
| 62 | |
| 63 | private static final String METERCOUNTERIDENTIFIER = "meter-id-counter-%s"; |
| 64 | private final Logger log = getLogger(getClass()); |
| 65 | |
| 66 | protected StorageService coreStorageService; |
| 67 | |
| 68 | protected VirtualNetworkMeterStore store; |
| 69 | private final MeterStoreDelegate storeDelegate = new InternalMeterStoreDelegate(); |
| 70 | |
| 71 | private VirtualProviderRegistryService providerRegistryService; |
| 72 | private InternalMeterProviderService innerProviderService; |
| 73 | |
| 74 | private Map<DeviceId, AtomicCounter> meterIdCounters |
| 75 | = Maps.newConcurrentMap(); |
| 76 | |
| 77 | private TriConsumer<MeterRequest, MeterStoreResult, Throwable> onComplete; |
| 78 | |
| 79 | /** |
| 80 | * Creates a new VirtualNetworkMeterManager object. |
| 81 | * |
| 82 | * @param manager virtual network manager service |
| 83 | * @param networkId a virtual network identifier |
| 84 | */ |
| 85 | public VirtualNetworkMeterManager(VirtualNetworkService manager, |
| 86 | NetworkId networkId) { |
| 87 | super(manager, networkId, MeterEvent.class); |
| 88 | |
| 89 | coreStorageService = serviceDirectory.get(StorageService.class); |
| 90 | providerRegistryService = |
| 91 | serviceDirectory.get(VirtualProviderRegistryService.class); |
| 92 | |
| 93 | store = serviceDirectory.get(VirtualNetworkMeterStore.class); |
| 94 | store.setDelegate(networkId, this.storeDelegate); |
| 95 | |
| 96 | innerProviderService = new InternalMeterProviderService(); |
| 97 | providerRegistryService.registerProviderService(networkId(), innerProviderService); |
| 98 | |
| 99 | |
| 100 | onComplete = (request, result, error) -> { |
| 101 | request.context().ifPresent(c -> { |
| 102 | if (error != null) { |
| 103 | c.onError(request, MeterFailReason.UNKNOWN); |
| 104 | } else { |
| 105 | if (result.reason().isPresent()) { |
| 106 | c.onError(request, result.reason().get()); |
| 107 | } else { |
| 108 | c.onSuccess(request); |
| 109 | } |
| 110 | } |
| 111 | }); |
| 112 | |
| 113 | }; |
| 114 | |
| 115 | log.info("Started"); |
| 116 | } |
| 117 | |
| 118 | @Override |
| 119 | public Meter submit(MeterRequest request) { |
| 120 | |
| 121 | MeterId id = allocateMeterId(request.deviceId()); |
| 122 | |
| 123 | Meter.Builder mBuilder = DefaultMeter.builder() |
| 124 | .forDevice(request.deviceId()) |
| 125 | .fromApp(request.appId()) |
| 126 | .withBands(request.bands()) |
| 127 | .withId(id) |
| 128 | .withUnit(request.unit()); |
| 129 | |
| 130 | if (request.isBurst()) { |
| 131 | mBuilder.burst(); |
| 132 | } |
| 133 | DefaultMeter m = (DefaultMeter) mBuilder.build(); |
| 134 | m.setState(MeterState.PENDING_ADD); |
| 135 | store.storeMeter(networkId(), m).whenComplete((result, error) -> |
| 136 | onComplete.accept(request, result, error)); |
| 137 | return m; |
| 138 | } |
| 139 | |
| 140 | @Override |
| 141 | public void withdraw(MeterRequest request, MeterId meterId) { |
| 142 | Meter.Builder mBuilder = DefaultMeter.builder() |
| 143 | .forDevice(request.deviceId()) |
| 144 | .fromApp(request.appId()) |
| 145 | .withBands(request.bands()) |
| 146 | .withId(meterId) |
| 147 | .withUnit(request.unit()); |
| 148 | |
| 149 | if (request.isBurst()) { |
| 150 | mBuilder.burst(); |
| 151 | } |
| 152 | |
| 153 | DefaultMeter m = (DefaultMeter) mBuilder.build(); |
| 154 | m.setState(MeterState.PENDING_REMOVE); |
| 155 | store.deleteMeter(networkId(), m).whenComplete((result, error) -> |
| 156 | onComplete.accept(request, result, error)); |
| 157 | } |
| 158 | |
| 159 | @Override |
| 160 | public Meter getMeter(DeviceId deviceId, MeterId id) { |
| 161 | MeterKey key = MeterKey.key(deviceId, id); |
| 162 | return store.getMeter(networkId(), key); |
| 163 | } |
| 164 | |
| 165 | @Override |
| 166 | public Collection<Meter> getMeters(DeviceId deviceId) { |
| 167 | return store.getAllMeters(networkId()).stream() |
| 168 | .filter(m -> m.deviceId().equals(deviceId)).collect(Collectors.toList()); |
| 169 | } |
| 170 | |
| 171 | @Override |
| 172 | public Collection<Meter> getAllMeters() { |
| 173 | return store.getAllMeters(networkId()); |
| 174 | } |
| 175 | |
| 176 | private long queryMeters(DeviceId device) { |
| 177 | //FIXME: how to decide maximum number of meters per virtual device? |
| 178 | return 1; |
| 179 | } |
| 180 | |
| 181 | private AtomicCounter allocateCounter(DeviceId deviceId) { |
| 182 | return coreStorageService |
| 183 | .getAtomicCounter(String.format(METERCOUNTERIDENTIFIER, deviceId)); |
| 184 | } |
| 185 | |
Pier Luigi | bdcd967 | 2017-10-13 13:54:48 +0200 | [diff] [blame] | 186 | public MeterId allocateMeterId(DeviceId deviceId) { |
yoonseon | 9467211 | 2017-01-31 13:46:21 -0800 | [diff] [blame] | 187 | long maxMeters = store.getMaxMeters(networkId(), MeterFeaturesKey.key(deviceId)); |
| 188 | if (maxMeters == 0L) { |
| 189 | // MeterFeatures couldn't be retrieved, trying with queryMeters |
| 190 | maxMeters = queryMeters(deviceId); |
| 191 | } |
| 192 | |
| 193 | if (maxMeters == 0L) { |
| 194 | throw new IllegalStateException("Meters not supported by device " + deviceId); |
| 195 | } |
| 196 | |
| 197 | final long mmeters = maxMeters; |
| 198 | long id = meterIdCounters.compute(deviceId, (k, v) -> { |
| 199 | if (v == null) { |
| 200 | return allocateCounter(k); |
| 201 | } |
| 202 | if (v.get() >= mmeters) { |
| 203 | throw new IllegalStateException("Maximum number of meters " + |
| 204 | meterIdCounters.get(deviceId).get() + |
| 205 | " reached for device " + deviceId + |
| 206 | " virtual network " + networkId()); |
| 207 | } |
| 208 | return v; |
| 209 | }).incrementAndGet(); |
| 210 | |
| 211 | return MeterId.meterId(id); |
| 212 | } |
| 213 | |
Pier Luigi | bdcd967 | 2017-10-13 13:54:48 +0200 | [diff] [blame] | 214 | @Override |
| 215 | public void freeMeterId(DeviceId deviceId, MeterId meterId) { |
| 216 | // Do nothing |
| 217 | } |
| 218 | |
yoonseon | 9467211 | 2017-01-31 13:46:21 -0800 | [diff] [blame] | 219 | private class InternalMeterProviderService |
| 220 | extends AbstractVirtualProviderService<VirtualMeterProvider> |
| 221 | implements VirtualMeterProviderService { |
| 222 | |
| 223 | /** |
| 224 | * Creates a provider service on behalf of the specified provider. |
| 225 | */ |
| 226 | protected InternalMeterProviderService() { |
| 227 | Set<ProviderId> providerIds = |
| 228 | providerRegistryService.getProvidersByService(this); |
| 229 | ProviderId providerId = providerIds.stream().findFirst().get(); |
| 230 | VirtualMeterProvider provider = (VirtualMeterProvider) |
| 231 | providerRegistryService.getProvider(providerId); |
| 232 | setProvider(provider); |
| 233 | } |
| 234 | |
| 235 | @Override |
| 236 | public void meterOperationFailed(MeterOperation operation, |
| 237 | MeterFailReason reason) { |
| 238 | store.failedMeter(networkId(), operation, reason); |
| 239 | } |
| 240 | |
| 241 | @Override |
| 242 | public void pushMeterMetrics(DeviceId deviceId, Collection<Meter> meterEntries) { |
| 243 | //FIXME: FOLLOWING CODE CANNOT BE TESTED UNTIL SOMETHING THAT |
| 244 | //FIXME: IMPLEMENTS METERS EXISTS |
| 245 | Map<Pair<DeviceId, MeterId>, Meter> storedMeterMap = |
| 246 | store.getAllMeters(networkId()).stream() |
| 247 | .collect(Collectors.toMap(m -> Pair.of(m.deviceId(), m.id()), Function.identity())); |
| 248 | |
| 249 | meterEntries.stream() |
| 250 | .filter(m -> storedMeterMap.remove(Pair.of(m.deviceId(), m.id())) != null) |
| 251 | .forEach(m -> store.updateMeterState(networkId(), m)); |
| 252 | |
| 253 | storedMeterMap.values().forEach(m -> { |
| 254 | if (m.state() == MeterState.PENDING_ADD) { |
| 255 | provider().performMeterOperation(networkId(), m.deviceId(), |
| 256 | new MeterOperation(m, |
| 257 | MeterOperation.Type.MODIFY)); |
| 258 | } else if (m.state() == MeterState.PENDING_REMOVE) { |
| 259 | store.deleteMeterNow(networkId(), m); |
| 260 | } |
| 261 | }); |
| 262 | } |
| 263 | |
| 264 | @Override |
| 265 | public void pushMeterFeatures(DeviceId deviceId, MeterFeatures meterfeatures) { |
| 266 | store.storeMeterFeatures(networkId(), meterfeatures); |
| 267 | } |
| 268 | |
| 269 | @Override |
| 270 | public void deleteMeterFeatures(DeviceId deviceId) { |
| 271 | store.deleteMeterFeatures(networkId(), deviceId); |
| 272 | } |
| 273 | } |
| 274 | |
| 275 | private class InternalMeterStoreDelegate implements MeterStoreDelegate { |
| 276 | |
| 277 | @Override |
| 278 | public void notify(MeterEvent event) { |
| 279 | DeviceId deviceId = event.subject().deviceId(); |
| 280 | VirtualMeterProvider p = innerProviderService.provider(); |
| 281 | |
| 282 | switch (event.type()) { |
| 283 | case METER_ADD_REQ: |
| 284 | p.performMeterOperation(networkId(), deviceId, |
| 285 | new MeterOperation(event.subject(), |
| 286 | MeterOperation.Type.ADD)); |
| 287 | break; |
| 288 | case METER_REM_REQ: |
| 289 | p.performMeterOperation(networkId(), deviceId, |
| 290 | new MeterOperation(event.subject(), |
| 291 | MeterOperation.Type.REMOVE)); |
| 292 | break; |
| 293 | default: |
| 294 | log.warn("Unknown meter event {}", event.type()); |
| 295 | } |
| 296 | } |
| 297 | } |
| 298 | } |