Pavlin Radoslavov | 1eee2c8 | 2013-10-15 02:30:32 -0700 | [diff] [blame] | 1 | package net.onrc.onos.datagrid; |
| 2 | |
| 3 | import java.io.FileNotFoundException; |
| 4 | import java.util.ArrayList; |
| 5 | import java.util.Collection; |
| 6 | import java.util.HashMap; |
Pavlin Radoslavov | 1308dc6 | 2013-10-25 15:54:31 -0700 | [diff] [blame^] | 7 | import java.util.LinkedList; |
Pavlin Radoslavov | 1eee2c8 | 2013-10-15 02:30:32 -0700 | [diff] [blame] | 8 | import java.util.Map; |
Pavlin Radoslavov | 1308dc6 | 2013-10-25 15:54:31 -0700 | [diff] [blame^] | 9 | import java.util.Set; |
| 10 | |
| 11 | import com.esotericsoftware.kryo2.Kryo; |
| 12 | import com.esotericsoftware.kryo2.io.Input; |
| 13 | import com.esotericsoftware.kryo2.io.Output; |
Pavlin Radoslavov | 1eee2c8 | 2013-10-15 02:30:32 -0700 | [diff] [blame] | 14 | |
| 15 | import net.floodlightcontroller.core.IFloodlightProviderService; |
| 16 | import net.floodlightcontroller.core.module.FloodlightModuleContext; |
| 17 | import net.floodlightcontroller.core.module.FloodlightModuleException; |
| 18 | import net.floodlightcontroller.core.module.IFloodlightModule; |
| 19 | import net.floodlightcontroller.core.module.IFloodlightService; |
| 20 | |
Pavlin Radoslavov | 1308dc6 | 2013-10-25 15:54:31 -0700 | [diff] [blame^] | 21 | import net.onrc.onos.ofcontroller.flowmanager.IFlowService; |
| 22 | import net.onrc.onos.ofcontroller.util.FlowId; |
| 23 | import net.onrc.onos.ofcontroller.util.FlowPath; |
| 24 | import net.onrc.onos.ofcontroller.util.serializers.KryoFactory; |
| 25 | |
Pavlin Radoslavov | 1eee2c8 | 2013-10-15 02:30:32 -0700 | [diff] [blame] | 26 | import org.slf4j.Logger; |
| 27 | import org.slf4j.LoggerFactory; |
| 28 | |
| 29 | import com.hazelcast.config.Config; |
| 30 | import com.hazelcast.config.FileSystemXmlConfig; |
Pavlin Radoslavov | 1308dc6 | 2013-10-25 15:54:31 -0700 | [diff] [blame^] | 31 | import com.hazelcast.core.EntryEvent; |
| 32 | import com.hazelcast.core.EntryListener; |
Pavlin Radoslavov | 1eee2c8 | 2013-10-15 02:30:32 -0700 | [diff] [blame] | 33 | import com.hazelcast.core.Hazelcast; |
| 34 | import com.hazelcast.core.HazelcastInstance; |
Pavlin Radoslavov | 1308dc6 | 2013-10-25 15:54:31 -0700 | [diff] [blame^] | 35 | import com.hazelcast.core.IMap; |
Pavlin Radoslavov | 1eee2c8 | 2013-10-15 02:30:32 -0700 | [diff] [blame] | 36 | import com.hazelcast.instance.GroupProperties; |
| 37 | |
| 38 | /** |
| 39 | * A datagrid service that uses Hazelcast as a datagrid. |
| 40 | * The relevant data is stored in the Hazelcast datagrid and shared as |
| 41 | * appropriate in a multi-node cluster. |
| 42 | */ |
| 43 | public class HazelcastDatagrid implements IFloodlightModule, IDatagridService { |
Pavlin Radoslavov | 1308dc6 | 2013-10-25 15:54:31 -0700 | [diff] [blame^] | 44 | private final static int MAX_BUFFER_SIZE = 64*1024; |
| 45 | |
Yuta HIGUCHI | 6ac8d18 | 2013-10-22 15:24:56 -0700 | [diff] [blame] | 46 | protected final static Logger log = LoggerFactory.getLogger(HazelcastDatagrid.class); |
Pavlin Radoslavov | 1eee2c8 | 2013-10-15 02:30:32 -0700 | [diff] [blame] | 47 | protected IFloodlightProviderService floodlightProvider; |
| 48 | |
| 49 | protected static final String HazelcastConfigFile = "datagridConfig"; |
Pavlin Radoslavov | 1308dc6 | 2013-10-25 15:54:31 -0700 | [diff] [blame^] | 50 | private HazelcastInstance hazelcastInstance = null; |
Pavlin Radoslavov | 1eee2c8 | 2013-10-15 02:30:32 -0700 | [diff] [blame] | 51 | private Config hazelcastConfig = null; |
| 52 | |
Pavlin Radoslavov | 1308dc6 | 2013-10-25 15:54:31 -0700 | [diff] [blame^] | 53 | private KryoFactory kryoFactory = new KryoFactory(); |
| 54 | |
| 55 | // State related to the Flow map |
| 56 | protected static final String mapFlowName = "mapFlow"; |
| 57 | private IFlowService flowService = null; |
| 58 | private IMap<Long, byte[]> mapFlow = null; |
| 59 | private MapFlowListener mapFlowListener = null; |
| 60 | private String mapFlowListenerId = null; |
| 61 | |
| 62 | /** |
| 63 | * Class for receiving notifications for Flow state. |
| 64 | * |
| 65 | * The datagrid map is: |
| 66 | * - Key : Flow ID (Long) |
| 67 | * - Value : Serialized Flow (byte[]) |
| 68 | */ |
| 69 | class MapFlowListener implements EntryListener<Long, byte[]> { |
| 70 | /** |
| 71 | * Receive a notification that an entry is added. |
| 72 | * |
| 73 | * @param event the notification event for the entry. |
| 74 | */ |
| 75 | public void entryAdded(EntryEvent event) { |
| 76 | Long keyLong = (Long)event.getKey(); |
| 77 | byte[] valueBytes = (byte[])event.getValue(); |
| 78 | |
| 79 | // |
| 80 | // Decode the value and deliver the notification |
| 81 | // |
| 82 | Kryo kryo = kryoFactory.newKryo(); |
| 83 | Input input = new Input(valueBytes); |
| 84 | FlowPath flowPath = kryo.readObject(input, FlowPath.class); |
| 85 | kryoFactory.deleteKryo(kryo); |
| 86 | flowService.notificationRecvFlowAdded(flowPath); |
| 87 | } |
| 88 | |
| 89 | /** |
| 90 | * Receive a notification that an entry is removed. |
| 91 | * |
| 92 | * @param event the notification event for the entry. |
| 93 | */ |
| 94 | public void entryRemoved(EntryEvent event) { |
| 95 | Long keyLong = (Long)event.getKey(); |
| 96 | byte[] valueBytes = (byte[])event.getValue(); |
| 97 | |
| 98 | // |
| 99 | // Decode the value and deliver the notification |
| 100 | // |
| 101 | Kryo kryo = kryoFactory.newKryo(); |
| 102 | Input input = new Input(valueBytes); |
| 103 | FlowPath flowPath = kryo.readObject(input, FlowPath.class); |
| 104 | kryoFactory.deleteKryo(kryo); |
| 105 | flowService.notificationRecvFlowRemoved(flowPath); |
| 106 | } |
| 107 | |
| 108 | /** |
| 109 | * Receive a notification that an entry is updated. |
| 110 | * |
| 111 | * @param event the notification event for the entry. |
| 112 | */ |
| 113 | public void entryUpdated(EntryEvent event) { |
| 114 | Long keyLong = (Long)event.getKey(); |
| 115 | byte[] valueBytes = (byte[])event.getValue(); |
| 116 | |
| 117 | // |
| 118 | // Decode the value and deliver the notification |
| 119 | // |
| 120 | Kryo kryo = kryoFactory.newKryo(); |
| 121 | Input input = new Input(valueBytes); |
| 122 | FlowPath flowPath = kryo.readObject(input, FlowPath.class); |
| 123 | kryoFactory.deleteKryo(kryo); |
| 124 | flowService.notificationRecvFlowUpdated(flowPath); |
| 125 | } |
| 126 | |
| 127 | /** |
| 128 | * Receive a notification that an entry is evicted. |
| 129 | * |
| 130 | * @param event the notification event for the entry. |
| 131 | */ |
| 132 | public void entryEvicted(EntryEvent event) { |
| 133 | // NOTE: We don't use eviction for this map |
| 134 | } |
| 135 | } |
| 136 | |
Pavlin Radoslavov | 1eee2c8 | 2013-10-15 02:30:32 -0700 | [diff] [blame] | 137 | /** |
| 138 | * Initialize the Hazelcast Datagrid operation. |
| 139 | * |
| 140 | * @param conf the configuration filename. |
| 141 | */ |
| 142 | public void init(String configFilename) { |
| 143 | /* |
| 144 | System.setProperty("hazelcast.socket.receive.buffer.size", "32"); |
| 145 | System.setProperty("hazelcast.socket.send.buffer.size", "32"); |
| 146 | */ |
| 147 | // System.setProperty("hazelcast.heartbeat.interval.seconds", "100"); |
| 148 | |
| 149 | // Init from configuration file |
| 150 | try { |
| 151 | hazelcastConfig = new FileSystemXmlConfig(configFilename); |
| 152 | } catch (FileNotFoundException e) { |
| 153 | log.error("Error opening Hazelcast XML configuration. File not found: " + configFilename, e); |
| 154 | } |
| 155 | /* |
| 156 | hazelcastConfig.setProperty(GroupProperties.PROP_IO_THREAD_COUNT, "1"); |
| 157 | hazelcastConfig.setProperty(GroupProperties.PROP_OPERATION_THREAD_COUNT, "1"); |
| 158 | hazelcastConfig.setProperty(GroupProperties.PROP_EVENT_THREAD_COUNT, "1"); |
| 159 | */ |
| 160 | // |
| 161 | hazelcastConfig.setProperty(GroupProperties.PROP_EVENT_QUEUE_CAPACITY, "4000000"); |
| 162 | hazelcastConfig.setProperty(GroupProperties.PROP_SOCKET_RECEIVE_BUFFER_SIZE, "4096"); |
| 163 | hazelcastConfig.setProperty(GroupProperties.PROP_SOCKET_SEND_BUFFER_SIZE, "4096"); |
| 164 | } |
| 165 | |
| 166 | /** |
| 167 | * Shutdown the Hazelcast Datagrid operation. |
| 168 | */ |
| 169 | public void finalize() { |
| 170 | close(); |
| 171 | } |
| 172 | |
| 173 | /** |
| 174 | * Shutdown the Hazelcast Datagrid operation. |
| 175 | */ |
| 176 | public void close() { |
| 177 | Hazelcast.shutdownAll(); |
| 178 | } |
| 179 | |
| 180 | /** |
| 181 | * Get the collection of offered module services. |
| 182 | * |
| 183 | * @return the collection of offered module services. |
| 184 | */ |
| 185 | @Override |
| 186 | public Collection<Class<? extends IFloodlightService>> getModuleServices() { |
| 187 | Collection<Class<? extends IFloodlightService>> l = |
| 188 | new ArrayList<Class<? extends IFloodlightService>>(); |
| 189 | l.add(IDatagridService.class); |
| 190 | return l; |
| 191 | } |
| 192 | |
| 193 | /** |
| 194 | * Get the collection of implemented services. |
| 195 | * |
| 196 | * @return the collection of implemented services. |
| 197 | */ |
| 198 | @Override |
| 199 | public Map<Class<? extends IFloodlightService>, IFloodlightService> |
| 200 | getServiceImpls() { |
| 201 | Map<Class<? extends IFloodlightService>, |
Pavlin Radoslavov | 27da753 | 2013-10-18 18:41:50 -0700 | [diff] [blame] | 202 | IFloodlightService> m = |
Pavlin Radoslavov | 1eee2c8 | 2013-10-15 02:30:32 -0700 | [diff] [blame] | 203 | new HashMap<Class<? extends IFloodlightService>, |
| 204 | IFloodlightService>(); |
| 205 | m.put(IDatagridService.class, this); |
| 206 | return m; |
| 207 | } |
| 208 | |
| 209 | /** |
| 210 | * Get the collection of modules this module depends on. |
| 211 | * |
| 212 | * @return the collection of modules this module depends on. |
| 213 | */ |
| 214 | @Override |
| 215 | public Collection<Class<? extends IFloodlightService>> |
| 216 | getModuleDependencies() { |
| 217 | Collection<Class<? extends IFloodlightService>> l = |
| 218 | new ArrayList<Class<? extends IFloodlightService>>(); |
| 219 | l.add(IFloodlightProviderService.class); |
| 220 | return l; |
| 221 | } |
| 222 | |
| 223 | /** |
| 224 | * Initialize the module. |
| 225 | * |
| 226 | * @param context the module context to use for the initialization. |
| 227 | */ |
| 228 | @Override |
| 229 | public void init(FloodlightModuleContext context) |
| 230 | throws FloodlightModuleException { |
| 231 | floodlightProvider = context.getServiceImpl(IFloodlightProviderService.class); |
| 232 | |
| 233 | // Get the configuration file name and configure the Datagrid |
| 234 | Map<String, String> configMap = context.getConfigParams(this); |
| 235 | String configFilename = configMap.get(HazelcastConfigFile); |
| 236 | this.init(configFilename); |
| 237 | } |
| 238 | |
| 239 | /** |
| 240 | * Startup module operation. |
| 241 | * |
| 242 | * @param context the module context to use for the startup. |
| 243 | */ |
| 244 | @Override |
| 245 | public void startUp(FloodlightModuleContext context) { |
Pavlin Radoslavov | 1308dc6 | 2013-10-25 15:54:31 -0700 | [diff] [blame^] | 246 | hazelcastInstance = Hazelcast.newHazelcastInstance(hazelcastConfig); |
| 247 | } |
| 248 | |
| 249 | /** |
| 250 | * Register Flow Service for receiving Flow-related notifications. |
| 251 | * |
| 252 | * NOTE: Only a single Flow Service can be registered. |
| 253 | * |
| 254 | * @param flowService the Flow Service to register. |
| 255 | */ |
| 256 | @Override |
| 257 | public void registerFlowService(IFlowService flowService) { |
| 258 | this.flowService = flowService; |
| 259 | mapFlowListener = new MapFlowListener(); |
| 260 | mapFlow = hazelcastInstance.getMap(mapFlowName); |
| 261 | mapFlowListenerId = mapFlow.addEntryListener(mapFlowListener, true); |
| 262 | } |
| 263 | |
| 264 | /** |
| 265 | * De-register Flow Service for receiving Flow-related notifications. |
| 266 | * |
| 267 | * NOTE: Only a single Flow Service can be registered. |
| 268 | * |
| 269 | * @param flowService the Flow Service to de-register. |
| 270 | */ |
| 271 | @Override |
| 272 | public void deregisterFlowService(IFlowService flowService) { |
| 273 | mapFlow.removeEntryListener(mapFlowListenerId); |
| 274 | mapFlow = null; |
| 275 | mapFlowListener = null; |
| 276 | this.flowService = null; |
| 277 | } |
| 278 | |
| 279 | /** |
| 280 | * Get all Flows that are currently in the datagrid. |
| 281 | * |
| 282 | * @return all Flows that are currently in the datagrid. |
| 283 | */ |
| 284 | @Override |
| 285 | public Collection<FlowPath> getAllFlows() { |
| 286 | Collection<FlowPath> allFlows = new LinkedList<FlowPath>(); |
| 287 | |
| 288 | // |
| 289 | // Get all current entries |
| 290 | // |
| 291 | Collection<byte[]> values = mapFlow.values(); |
| 292 | Kryo kryo = kryoFactory.newKryo(); |
| 293 | for (byte[] valueBytes : values) { |
| 294 | // |
| 295 | // Decode the value |
| 296 | // |
| 297 | Input input = new Input(valueBytes); |
| 298 | FlowPath flowPath = kryo.readObject(input, FlowPath.class); |
| 299 | allFlows.add(flowPath); |
| 300 | } |
| 301 | kryoFactory.deleteKryo(kryo); |
| 302 | |
| 303 | return allFlows; |
| 304 | } |
| 305 | |
| 306 | /** |
| 307 | * Send a notification that a Flow is added. |
| 308 | * |
| 309 | * @param flowPath the flow that is added. |
| 310 | */ |
| 311 | @Override |
| 312 | public void notificationSendFlowAdded(FlowPath flowPath) { |
| 313 | // |
| 314 | // Encode the value |
| 315 | // |
| 316 | byte[] buffer = new byte[MAX_BUFFER_SIZE]; |
| 317 | Kryo kryo = kryoFactory.newKryo(); |
| 318 | Output output = new Output(buffer, -1); |
| 319 | kryo.writeObject(output, flowPath); |
| 320 | byte[] valueBytes = output.toBytes(); |
| 321 | kryoFactory.deleteKryo(kryo); |
| 322 | |
| 323 | // |
| 324 | // Put the entry: |
| 325 | // - Key : Flow ID (Long) |
| 326 | // - Value : Serialized Flow (byte[]) |
| 327 | // |
| 328 | mapFlow.putAsync(flowPath.flowId().value(), valueBytes); |
| 329 | } |
| 330 | |
| 331 | /** |
| 332 | * Send a notification that a Flow is removed. |
| 333 | * |
| 334 | * @param flowId the Flow ID of the flow that is removed. |
| 335 | */ |
| 336 | @Override |
| 337 | public void notificationSendFlowRemoved(FlowId flowId) { |
| 338 | // |
| 339 | // Remove the entry: |
| 340 | // - Key : Flow ID (Long) |
| 341 | // - Value : Serialized Flow (byte[]) |
| 342 | // |
| 343 | mapFlow.removeAsync(flowId.value()); |
| 344 | } |
| 345 | |
| 346 | /** |
| 347 | * Send a notification that a Flow is updated. |
| 348 | * |
| 349 | * @param flowPath the flow that is updated. |
| 350 | */ |
| 351 | @Override |
| 352 | public void notificationSendFlowUpdated(FlowPath flowPath) { |
| 353 | // NOTE: Adding an entry with an existing key automatically updates it |
| 354 | notificationSendFlowAdded(flowPath); |
| 355 | } |
| 356 | |
| 357 | /** |
| 358 | * Send a notification that all Flows are removed. |
| 359 | */ |
| 360 | @Override |
| 361 | public void notificationSendAllFlowsRemoved() { |
| 362 | // |
| 363 | // Remove all entries |
| 364 | // NOTE: We remove the entries one-by-one so the per-entry |
| 365 | // notifications will be delivered. |
| 366 | // |
| 367 | // mapFlow.clear(); |
| 368 | Set<Long> keySet = mapFlow.keySet(); |
| 369 | for (Long key : keySet) { |
| 370 | mapFlow.removeAsync(key); |
| 371 | } |
Pavlin Radoslavov | 1eee2c8 | 2013-10-15 02:30:32 -0700 | [diff] [blame] | 372 | } |
| 373 | } |