Jonghwan Hyun | 13a430d | 2018-07-22 17:02:51 +0900 | [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.inbandtelemetry.impl; |
| 17 | |
| 18 | import org.apache.felix.scr.annotations.Activate; |
| 19 | import org.apache.felix.scr.annotations.Component; |
| 20 | import org.apache.felix.scr.annotations.Deactivate; |
| 21 | import org.apache.felix.scr.annotations.Reference; |
| 22 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
| 23 | import org.apache.felix.scr.annotations.Service; |
| 24 | import org.onlab.util.KryoNamespace; |
| 25 | import org.onosproject.core.ApplicationId; |
| 26 | import org.onosproject.core.CoreService; |
| 27 | import org.onosproject.inbandtelemetry.api.IntConfig; |
| 28 | import org.onosproject.inbandtelemetry.api.IntIntent; |
| 29 | import org.onosproject.inbandtelemetry.api.IntIntentId; |
| 30 | import org.onosproject.inbandtelemetry.api.IntObjective; |
| 31 | import org.onosproject.inbandtelemetry.api.IntProgrammable; |
| 32 | import org.onosproject.inbandtelemetry.api.IntService; |
| 33 | import org.onosproject.net.Device; |
| 34 | import org.onosproject.net.DeviceId; |
| 35 | import org.onosproject.net.device.DeviceService; |
| 36 | import org.onosproject.net.flow.FlowRuleService; |
| 37 | import org.onosproject.net.host.HostEvent; |
| 38 | import org.onosproject.net.host.HostListener; |
| 39 | import org.onosproject.net.host.HostService; |
| 40 | import org.onosproject.store.serializers.KryoNamespaces; |
| 41 | import org.onosproject.store.service.AtomicIdGenerator; |
| 42 | import org.onosproject.store.service.ConsistentMap; |
| 43 | import org.onosproject.store.service.Serializer; |
| 44 | import org.onosproject.store.service.StorageService; |
| 45 | import org.slf4j.Logger; |
| 46 | |
| 47 | import java.util.Map; |
| 48 | import java.util.Optional; |
| 49 | import java.util.Set; |
| 50 | |
| 51 | import static org.slf4j.LoggerFactory.getLogger; |
| 52 | |
| 53 | /** |
| 54 | * Implementation of IntService, for controlling INT-capable pipelines. |
| 55 | */ |
| 56 | @Component(immediate = true) |
| 57 | @Service |
| 58 | public class IntManager implements IntService { |
| 59 | private final String appName = "org.onosproject.inbandtelemetry"; |
| 60 | private ApplicationId appId; |
| 61 | private final Logger log = getLogger(getClass()); |
| 62 | private ConsistentMap<IntIntentId, IntIntent> intentConsistentMap; |
| 63 | private ConsistentMap<DeviceId, IntDeviceRole> deviceRoleConsistentMap; |
| 64 | private IntConfig cfg; |
| 65 | private AtomicIdGenerator intentIds; |
| 66 | |
| 67 | private InternalHostListener hostListener = new InternalHostListener(); |
| 68 | |
| 69 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 70 | private CoreService coreService; |
| 71 | |
| 72 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 73 | private DeviceService deviceService; |
| 74 | |
| 75 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 76 | private StorageService storageService; |
| 77 | |
| 78 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 79 | private HostService hostService; |
| 80 | |
| 81 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 82 | private FlowRuleService flowRuleService; |
| 83 | |
| 84 | @Activate |
| 85 | public void activate() { |
| 86 | appId = coreService.registerApplication(appName); |
| 87 | |
| 88 | KryoNamespace.Builder serializer = KryoNamespace.newBuilder() |
| 89 | .register(KryoNamespaces.API) |
| 90 | .register(IntIntent.class) |
| 91 | .register(IntIntentId.class) |
| 92 | .register(IntDeviceRole.class) |
| 93 | .register(IntIntent.IntHeaderType.class) |
| 94 | .register(IntIntent.IntMetadataType.class) |
| 95 | .register(IntIntent.IntReportType.class) |
| 96 | .register(IntIntent.TelemetryMode.class); |
| 97 | |
| 98 | intentConsistentMap = storageService.<IntIntentId, IntIntent>consistentMapBuilder() |
| 99 | .withSerializer(Serializer.using(serializer.build())) |
| 100 | .withName("int-intents") |
| 101 | .withApplicationId(appId) |
| 102 | .withPurgeOnUninstall() |
| 103 | .build(); |
| 104 | |
| 105 | deviceRoleConsistentMap = storageService.<DeviceId, IntDeviceRole>consistentMapBuilder() |
| 106 | .withSerializer(Serializer.using(serializer.build())) |
| 107 | .withName("int-device-roles") |
| 108 | .withApplicationId(appId) |
| 109 | .withPurgeOnUninstall() |
| 110 | .build(); |
| 111 | |
| 112 | // Assign IntDeviceRole to each device |
| 113 | deviceService.getAvailableDevices().forEach(device -> |
| 114 | deviceRoleConsistentMap.put(device.id(), |
| 115 | hostService.getConnectedHosts(device.id()).isEmpty() ? |
| 116 | IntDeviceRole.TRANSIT : |
| 117 | IntDeviceRole.SOURCE_SINK) |
| 118 | ); |
| 119 | hostService.addListener(hostListener); |
| 120 | intentIds = storageService.getAtomicIdGenerator("int-intent-id-generator"); |
| 121 | startInt(); |
| 122 | log.info("Started", appId.id()); |
| 123 | } |
| 124 | |
| 125 | @Deactivate |
| 126 | public void deactivate() { |
| 127 | hostService.removeListener(hostListener); |
| 128 | log.info("Deactivated"); |
| 129 | } |
| 130 | |
| 131 | @Override |
| 132 | public void startInt() { |
| 133 | deviceService.getAvailableDevices().forEach(device -> { |
| 134 | if (device.is(IntProgrammable.class)) { |
| 135 | IntProgrammable intDevice = device.as(IntProgrammable.class); |
| 136 | intDevice.init(); |
| 137 | } |
| 138 | }); |
| 139 | } |
| 140 | |
| 141 | @Override |
| 142 | public void startInt(Set<DeviceId> deviceIds) { |
| 143 | deviceIds.forEach(deviceId -> { |
| 144 | Device device = deviceService.getDevice(deviceId); |
| 145 | if (device.is(IntProgrammable.class) && |
| 146 | getIntRole(deviceId) == IntDeviceRole.TRANSIT) { |
| 147 | IntProgrammable intDevice = device.as(IntProgrammable.class); |
| 148 | intDevice.init(); |
| 149 | } |
| 150 | }); |
| 151 | } |
| 152 | |
| 153 | @Override |
| 154 | public void stopInt() { |
| 155 | flowRuleService.removeFlowRulesById(appId); |
| 156 | } |
| 157 | |
| 158 | @Override |
| 159 | public void stopInt(Set<DeviceId> deviceIds) { |
| 160 | |
| 161 | } |
| 162 | |
| 163 | @Override |
| 164 | public void setConfig(IntConfig cfg) { |
| 165 | this.cfg = cfg; |
| 166 | deviceService.getAvailableDevices().forEach(device -> { |
| 167 | if (device.is(IntProgrammable.class)) { |
| 168 | IntProgrammable intDevice = device.as(IntProgrammable.class); |
| 169 | intDevice.setupIntConfig(cfg); |
| 170 | } |
| 171 | }); |
| 172 | } |
| 173 | |
| 174 | @Override |
| 175 | public IntConfig getConfig() { |
| 176 | return cfg; |
| 177 | } |
| 178 | |
| 179 | @Override |
| 180 | public IntIntentId installIntIntent(IntIntent intent) { |
| 181 | Integer intentId = (int) intentIds.nextId(); |
| 182 | IntIntentId intIntentId = IntIntentId.valueOf(intentId); |
| 183 | intentConsistentMap.put(intIntentId, intent); |
| 184 | |
| 185 | // Convert IntIntent into an IntObjective |
| 186 | IntObjective obj = new IntObjective.Builder() |
| 187 | .withSelector(intent.selector()) |
| 188 | .withMetadataTypes(intent.metadataTypes()) |
| 189 | .withHeaderType(intent.headerType()) |
| 190 | .build(); |
| 191 | |
| 192 | // Install IntObjective on each INT source device |
| 193 | deviceService.getAvailableDevices().forEach(device -> { |
| 194 | if (device.is(IntProgrammable.class) |
| 195 | && deviceRoleConsistentMap.get(device.id()).value() == IntDeviceRole.SOURCE_SINK) { |
| 196 | IntProgrammable intDevice = device.as(IntProgrammable.class); |
| 197 | intDevice.addIntObjective(obj); |
| 198 | } |
| 199 | }); |
| 200 | return intIntentId; |
| 201 | } |
| 202 | |
| 203 | @Override |
| 204 | public void removeIntIntent(IntIntentId intentId) { |
| 205 | IntIntent intent = intentConsistentMap.remove(intentId).value(); |
| 206 | |
| 207 | // Convert IntIntent into an IntObjective |
| 208 | IntObjective obj = new IntObjective.Builder() |
| 209 | .withSelector(intent.selector()) |
| 210 | .withMetadataTypes(intent.metadataTypes()) |
| 211 | .withHeaderType(intent.headerType()) |
| 212 | .build(); |
| 213 | |
| 214 | // Remove IntObjective on each INT source device |
| 215 | deviceService.getAvailableDevices().forEach(device -> { |
| 216 | if (device.is(IntProgrammable.class) |
| 217 | && deviceRoleConsistentMap.get(device.id()).value() == IntDeviceRole.SOURCE_SINK) { |
| 218 | IntProgrammable intDevice = device.as(IntProgrammable.class); |
| 219 | intDevice.removeIntObjective(obj); |
| 220 | } |
| 221 | }); |
| 222 | } |
| 223 | |
| 224 | @Override |
| 225 | public IntIntent getIntIntent(IntIntentId intentId) { |
| 226 | return Optional.ofNullable(intentConsistentMap.get(intentId).value()).orElse(null); |
| 227 | } |
| 228 | |
| 229 | @Override |
| 230 | public Map<IntIntentId, IntIntent> getIntIntents() { |
| 231 | return intentConsistentMap.asJavaMap(); |
| 232 | } |
| 233 | |
| 234 | private IntDeviceRole getIntRole(DeviceId deviceId) { |
| 235 | return deviceRoleConsistentMap.get(deviceId).value(); |
| 236 | } |
| 237 | |
| 238 | private void setIntRole(DeviceId deviceId, IntDeviceRole role) { |
| 239 | deviceRoleConsistentMap.put(deviceId, role); |
| 240 | } |
| 241 | |
| 242 | private class InternalHostListener implements HostListener { |
| 243 | @Override |
| 244 | public void event(HostEvent event) { |
| 245 | DeviceId deviceId = event.subject().location().deviceId(); |
| 246 | if (!deviceService.getDevice(deviceId).is(IntProgrammable.class)) { |
| 247 | return; |
| 248 | } |
| 249 | switch (event.type()) { |
| 250 | case HOST_ADDED: |
| 251 | // When a host is attached to the switch, we can configure it |
| 252 | // to work as SOURCE_SINK switch. |
| 253 | if (deviceRoleConsistentMap.getOrDefault(deviceId, IntDeviceRole.TRANSIT).value() |
| 254 | != IntDeviceRole.SOURCE_SINK) { |
| 255 | setIntRole(deviceId, IntDeviceRole.SOURCE_SINK); |
| 256 | } |
| 257 | break; |
| 258 | default: |
| 259 | break; |
| 260 | } |
| 261 | } |
| 262 | } |
| 263 | |
| 264 | } |