Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 1 | package net.onrc.onos.ofcontroller.networkgraph; |
| 2 | |
Yuta HIGUCHI | 1c70010 | 2014-02-12 16:30:52 -0800 | [diff] [blame] | 3 | import java.net.InetAddress; |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 4 | import java.util.ArrayList; |
Pavlin Radoslavov | 721a2e0 | 2014-02-14 23:40:14 -0800 | [diff] [blame] | 5 | import java.util.Collection; |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 6 | import java.util.HashSet; |
Pavlin Radoslavov | 721a2e0 | 2014-02-14 23:40:14 -0800 | [diff] [blame] | 7 | import java.util.LinkedList; |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 8 | import java.util.List; |
| 9 | import java.util.Set; |
Pavlin Radoslavov | 721a2e0 | 2014-02-14 23:40:14 -0800 | [diff] [blame] | 10 | import java.util.concurrent.BlockingQueue; |
Yuta HIGUCHI | a536e76 | 2014-02-17 21:47:28 -0800 | [diff] [blame] | 11 | import java.util.concurrent.CopyOnWriteArrayList; |
Pavlin Radoslavov | 721a2e0 | 2014-02-14 23:40:14 -0800 | [diff] [blame] | 12 | import java.util.concurrent.LinkedBlockingQueue; |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 13 | |
Pavlin Radoslavov | 721a2e0 | 2014-02-14 23:40:14 -0800 | [diff] [blame] | 14 | import net.onrc.onos.datagrid.IDatagridService; |
| 15 | import net.onrc.onos.datagrid.IEventChannel; |
| 16 | import net.onrc.onos.datagrid.IEventChannelListener; |
Yuta HIGUCHI | 765cd0d | 2014-02-06 12:46:41 -0800 | [diff] [blame] | 17 | import net.onrc.onos.datastore.topology.RCLink; |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 18 | import net.onrc.onos.datastore.topology.RCPort; |
| 19 | import net.onrc.onos.datastore.topology.RCSwitch; |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 20 | import net.onrc.onos.ofcontroller.networkgraph.PortEvent.SwitchPort; |
Pavlin Radoslavov | 721a2e0 | 2014-02-14 23:40:14 -0800 | [diff] [blame] | 21 | import net.onrc.onos.ofcontroller.util.EventEntry; |
Yuta HIGUCHI | 765cd0d | 2014-02-06 12:46:41 -0800 | [diff] [blame] | 22 | import net.onrc.onos.ofcontroller.util.Dpid; |
Yuta HIGUCHI | 170229f | 2014-02-17 15:47:54 -0800 | [diff] [blame] | 23 | import net.onrc.onos.registry.controller.IControllerRegistryService; |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 24 | |
| 25 | import org.slf4j.Logger; |
| 26 | import org.slf4j.LoggerFactory; |
| 27 | |
Yuta HIGUCHI | 181d34d | 2014-02-05 15:05:46 -0800 | [diff] [blame] | 28 | /** |
| 29 | * The "NB" read-only Network Map. |
| 30 | * |
Yuta HIGUCHI | 4bfdd53 | 2014-02-07 13:47:36 -0800 | [diff] [blame] | 31 | * - Maintain Invariant/Relationships between Topology Objects. |
| 32 | * |
Yuta HIGUCHI | 765cd0d | 2014-02-06 12:46:41 -0800 | [diff] [blame] | 33 | * TODO To be synchronized based on TopologyEvent Notification. |
Yuta HIGUCHI | 181d34d | 2014-02-05 15:05:46 -0800 | [diff] [blame] | 34 | * |
Yuta HIGUCHI | cb95198 | 2014-02-11 13:31:44 -0800 | [diff] [blame] | 35 | * TODO TBD: Caller is expected to maintain parent/child calling order. Parent |
Yuta HIGUCHI | 1c70010 | 2014-02-12 16:30:52 -0800 | [diff] [blame] | 36 | * Object must exist before adding sub component(Add Switch -> Port). |
Yuta HIGUCHI | cb95198 | 2014-02-11 13:31:44 -0800 | [diff] [blame] | 37 | * |
Yuta HIGUCHI | 4bfdd53 | 2014-02-07 13:47:36 -0800 | [diff] [blame] | 38 | * TODO TBD: This class may delay the requested change to handle event |
| 39 | * re-ordering. e.g.) Link Add came in, but Switch was not there. |
Yuta HIGUCHI | cb95198 | 2014-02-11 13:31:44 -0800 | [diff] [blame] | 40 | * |
Yuta HIGUCHI | 181d34d | 2014-02-05 15:05:46 -0800 | [diff] [blame] | 41 | */ |
Yuta HIGUCHI | 928fa68 | 2014-02-11 19:07:57 -0800 | [diff] [blame] | 42 | public class NetworkGraphImpl extends AbstractNetworkGraph implements |
| 43 | NetworkGraphDiscoveryInterface, NetworkGraphReplicationInterface { |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 44 | |
Yuta HIGUCHI | 80829d1 | 2014-02-05 20:16:56 -0800 | [diff] [blame] | 45 | private static final Logger log = LoggerFactory |
| 46 | .getLogger(NetworkGraphImpl.class); |
Yuta HIGUCHI | cd922f4 | 2014-02-11 18:59:11 -0800 | [diff] [blame] | 47 | |
Pavlin Radoslavov | 721a2e0 | 2014-02-14 23:40:14 -0800 | [diff] [blame] | 48 | private IEventChannel<byte[], TopologyEvent> eventChannel; |
| 49 | private static final String EVENT_CHANNEL_NAME = "onos.topology"; |
| 50 | private EventHandler eventHandler = new EventHandler(); |
| 51 | |
Jonathan Hart | 22eb988 | 2014-02-11 15:52:59 -0800 | [diff] [blame] | 52 | private final NetworkGraphDatastore datastore; |
Yuta HIGUCHI | 170229f | 2014-02-17 15:47:54 -0800 | [diff] [blame] | 53 | private final IControllerRegistryService registryService; |
Yuta HIGUCHI | a536e76 | 2014-02-17 21:47:28 -0800 | [diff] [blame] | 54 | private CopyOnWriteArrayList<INetworkGraphListener> networkGraphListeners; |
Yuta HIGUCHI | 181d34d | 2014-02-05 15:05:46 -0800 | [diff] [blame] | 55 | |
Yuta HIGUCHI | a536e76 | 2014-02-17 21:47:28 -0800 | [diff] [blame] | 56 | public NetworkGraphImpl(IControllerRegistryService registryService, CopyOnWriteArrayList<INetworkGraphListener> networkGraphListeners) { |
Yuta HIGUCHI | 80829d1 | 2014-02-05 20:16:56 -0800 | [diff] [blame] | 57 | super(); |
Jonathan Hart | 22eb988 | 2014-02-11 15:52:59 -0800 | [diff] [blame] | 58 | datastore = new NetworkGraphDatastore(this); |
Yuta HIGUCHI | 170229f | 2014-02-17 15:47:54 -0800 | [diff] [blame] | 59 | this.registryService = registryService; |
Yuta HIGUCHI | a536e76 | 2014-02-17 21:47:28 -0800 | [diff] [blame] | 60 | this.networkGraphListeners = networkGraphListeners; |
Yuta HIGUCHI | 80829d1 | 2014-02-05 20:16:56 -0800 | [diff] [blame] | 61 | } |
Yuta HIGUCHI | 181d34d | 2014-02-05 15:05:46 -0800 | [diff] [blame] | 62 | |
Yuta HIGUCHI | 4bfdd53 | 2014-02-07 13:47:36 -0800 | [diff] [blame] | 63 | /** |
Pavlin Radoslavov | 721a2e0 | 2014-02-14 23:40:14 -0800 | [diff] [blame] | 64 | * Event handler class. |
| 65 | */ |
| 66 | private class EventHandler extends Thread implements |
| 67 | IEventChannelListener<byte[], TopologyEvent> { |
| 68 | private BlockingQueue<EventEntry<TopologyEvent>> topologyEvents = |
| 69 | new LinkedBlockingQueue<EventEntry<TopologyEvent>>(); |
| 70 | |
| 71 | /** |
| 72 | * Startup processing. |
| 73 | */ |
| 74 | private void startup() { |
| 75 | // |
| 76 | // TODO: Read all state from the database |
| 77 | // For now, as a shortcut we read it from the datagrid |
| 78 | // |
| 79 | Collection<TopologyEvent> topologyEvents = |
| 80 | eventChannel.getAllEntries(); |
| 81 | Collection<EventEntry<TopologyEvent>> collection = |
| 82 | new LinkedList<EventEntry<TopologyEvent>>(); |
| 83 | |
| 84 | for (TopologyEvent topologyEvent : topologyEvents) { |
| 85 | EventEntry<TopologyEvent> eventEntry = |
| 86 | new EventEntry<TopologyEvent>(EventEntry.Type.ENTRY_ADD, |
| 87 | topologyEvent); |
| 88 | collection.add(eventEntry); |
| 89 | } |
| 90 | processEvents(collection); |
| 91 | } |
| 92 | |
| 93 | /** |
| 94 | * Run the thread. |
| 95 | */ |
Yuta HIGUCHI | 240bf07 | 2014-02-17 10:55:21 -0800 | [diff] [blame] | 96 | @Override |
Pavlin Radoslavov | 721a2e0 | 2014-02-14 23:40:14 -0800 | [diff] [blame] | 97 | public void run() { |
| 98 | Collection<EventEntry<TopologyEvent>> collection = |
| 99 | new LinkedList<EventEntry<TopologyEvent>>(); |
| 100 | |
| 101 | this.setName("NetworkGraphImpl.EventHandler " + this.getId()); |
| 102 | startup(); |
| 103 | |
| 104 | // |
| 105 | // The main loop |
| 106 | // |
| 107 | try { |
| 108 | while (true) { |
| 109 | EventEntry<TopologyEvent> eventEntry = topologyEvents.take(); |
| 110 | collection.add(eventEntry); |
| 111 | topologyEvents.drainTo(collection); |
| 112 | |
| 113 | processEvents(collection); |
| 114 | collection.clear(); |
| 115 | } |
| 116 | } catch (Exception exception) { |
| 117 | log.debug("Exception processing Topology Events: ", exception); |
| 118 | } |
| 119 | } |
| 120 | |
| 121 | /** |
| 122 | * Process all topology events. |
| 123 | * |
| 124 | * @param events the events to process. |
| 125 | */ |
| 126 | private void processEvents(Collection<EventEntry<TopologyEvent>> events) { |
| 127 | for (EventEntry<TopologyEvent> event : events) { |
Yuta HIGUCHI | 170229f | 2014-02-17 15:47:54 -0800 | [diff] [blame] | 128 | if (event.eventData().getOriginID().equals(registryService.getControllerId())) { |
| 129 | // ignore event triggered by myself |
| 130 | continue; |
| 131 | } |
Pavlin Radoslavov | 721a2e0 | 2014-02-14 23:40:14 -0800 | [diff] [blame] | 132 | TopologyEvent topologyEvent = event.eventData(); |
| 133 | switch (event.eventType()) { |
| 134 | case ENTRY_ADD: |
| 135 | log.debug("Topology event ENTRY_ADD: {}", topologyEvent); |
| 136 | if (topologyEvent.switchEvent != null) |
| 137 | putSwitchReplicationEvent(topologyEvent.switchEvent); |
| 138 | if (topologyEvent.portEvent != null) |
| 139 | putPortReplicationEvent(topologyEvent.portEvent); |
| 140 | if (topologyEvent.linkEvent != null) |
| 141 | putLinkReplicationEvent(topologyEvent.linkEvent); |
| 142 | if (topologyEvent.deviceEvent != null) |
| 143 | putDeviceReplicationEvent(topologyEvent.deviceEvent); |
| 144 | break; |
| 145 | case ENTRY_REMOVE: |
| 146 | log.debug("Topology event ENTRY_REMOVE: {}", topologyEvent); |
| 147 | if (topologyEvent.switchEvent != null) |
| 148 | removeSwitchReplicationEvent(topologyEvent.switchEvent); |
| 149 | if (topologyEvent.portEvent != null) |
| 150 | removePortReplicationEvent(topologyEvent.portEvent); |
| 151 | if (topologyEvent.linkEvent != null) |
| 152 | removeLinkReplicationEvent(topologyEvent.linkEvent); |
| 153 | if (topologyEvent.deviceEvent != null) |
| 154 | removeDeviceReplicationEvent(topologyEvent.deviceEvent); |
| 155 | break; |
| 156 | } |
| 157 | } |
| 158 | } |
| 159 | |
| 160 | /** |
| 161 | * Receive a notification that an entry is added. |
| 162 | * |
| 163 | * @param value the value for the entry. |
| 164 | */ |
| 165 | @Override |
| 166 | public void entryAdded(TopologyEvent value) { |
| 167 | EventEntry<TopologyEvent> eventEntry = |
| 168 | new EventEntry<TopologyEvent>(EventEntry.Type.ENTRY_ADD, |
| 169 | value); |
| 170 | topologyEvents.add(eventEntry); |
| 171 | } |
| 172 | |
| 173 | /** |
| 174 | * Receive a notification that an entry is removed. |
| 175 | * |
| 176 | * @param value the value for the entry. |
| 177 | */ |
| 178 | @Override |
| 179 | public void entryRemoved(TopologyEvent value) { |
| 180 | EventEntry<TopologyEvent> eventEntry = |
| 181 | new EventEntry<TopologyEvent>(EventEntry.Type.ENTRY_REMOVE, |
| 182 | value); |
| 183 | topologyEvents.add(eventEntry); |
| 184 | } |
| 185 | |
| 186 | /** |
| 187 | * Receive a notification that an entry is updated. |
| 188 | * |
| 189 | * @param value the value for the entry. |
| 190 | */ |
| 191 | @Override |
| 192 | public void entryUpdated(TopologyEvent value) { |
| 193 | // NOTE: The ADD and UPDATE events are processed in same way |
| 194 | entryAdded(value); |
| 195 | } |
| 196 | } |
| 197 | |
| 198 | /** |
| 199 | * Startup processing. |
| 200 | * |
| 201 | * @param datagridService the datagrid service to use. |
| 202 | */ |
| 203 | void startup(IDatagridService datagridService) { |
| 204 | eventChannel = datagridService.addListener(EVENT_CHANNEL_NAME, |
| 205 | eventHandler, |
| 206 | byte[].class, |
| 207 | TopologyEvent.class); |
| 208 | eventHandler.start(); |
| 209 | } |
| 210 | |
| 211 | /** |
Yuta HIGUCHI | cb95198 | 2014-02-11 13:31:44 -0800 | [diff] [blame] | 212 | * Exception to be thrown when Modification to the Network Graph cannot be continued due to broken invariant. |
| 213 | * |
| 214 | * XXX Should this be checked exception or RuntimeException |
| 215 | */ |
| 216 | public static class BrokenInvariantException extends RuntimeException { |
| 217 | private static final long serialVersionUID = 1L; |
| 218 | |
| 219 | public BrokenInvariantException() { |
| 220 | super(); |
| 221 | } |
| 222 | |
| 223 | public BrokenInvariantException(String message) { |
| 224 | super(message); |
| 225 | } |
| 226 | } |
Jonathan Hart | 22eb988 | 2014-02-11 15:52:59 -0800 | [diff] [blame] | 227 | |
| 228 | /* ****************************** |
| 229 | * NetworkGraphDiscoveryInterface methods |
| 230 | * ******************************/ |
Yuta HIGUCHI | cd922f4 | 2014-02-11 18:59:11 -0800 | [diff] [blame] | 231 | |
Jonathan Hart | 22eb988 | 2014-02-11 15:52:59 -0800 | [diff] [blame] | 232 | @Override |
| 233 | public void putSwitchEvent(SwitchEvent switchEvent) { |
Yuta HIGUCHI | d02e928 | 2014-02-12 09:24:41 -0800 | [diff] [blame] | 234 | if (prepareForAddSwitchEvent(switchEvent)) { |
Jonathan Hart | 22eb988 | 2014-02-11 15:52:59 -0800 | [diff] [blame] | 235 | datastore.addSwitch(switchEvent); |
| 236 | putSwitch(switchEvent); |
Pavlin Radoslavov | 721a2e0 | 2014-02-14 23:40:14 -0800 | [diff] [blame] | 237 | // Send out notification |
| 238 | TopologyEvent topologyEvent = |
Yuta HIGUCHI | 170229f | 2014-02-17 15:47:54 -0800 | [diff] [blame] | 239 | new TopologyEvent(switchEvent, registryService.getControllerId()); |
Pavlin Radoslavov | 721a2e0 | 2014-02-14 23:40:14 -0800 | [diff] [blame] | 240 | eventChannel.addEntry(topologyEvent.getID(), |
| 241 | topologyEvent); |
Jonathan Hart | 22eb988 | 2014-02-11 15:52:59 -0800 | [diff] [blame] | 242 | } |
| 243 | // TODO handle invariant violation |
| 244 | } |
| 245 | |
| 246 | @Override |
| 247 | public void removeSwitchEvent(SwitchEvent switchEvent) { |
Yuta HIGUCHI | d02e928 | 2014-02-12 09:24:41 -0800 | [diff] [blame] | 248 | if (prepareForRemoveSwitchEvent(switchEvent)) { |
Jonathan Hart | 22eb988 | 2014-02-11 15:52:59 -0800 | [diff] [blame] | 249 | datastore.deactivateSwitch(switchEvent); |
| 250 | removeSwitch(switchEvent); |
Pavlin Radoslavov | 721a2e0 | 2014-02-14 23:40:14 -0800 | [diff] [blame] | 251 | // Send out notification |
| 252 | eventChannel.removeEntry(switchEvent.getID()); |
Jonathan Hart | 22eb988 | 2014-02-11 15:52:59 -0800 | [diff] [blame] | 253 | } |
| 254 | // TODO handle invariant violation |
| 255 | } |
| 256 | |
| 257 | @Override |
| 258 | public void putPortEvent(PortEvent portEvent) { |
Jonathan Hart | 4c26327 | 2014-02-13 17:41:05 -0800 | [diff] [blame] | 259 | if (prepareForAddPortEvent(portEvent)) { |
| 260 | datastore.addPort(portEvent); |
| 261 | putPort(portEvent); |
Pavlin Radoslavov | 721a2e0 | 2014-02-14 23:40:14 -0800 | [diff] [blame] | 262 | // Send out notification |
| 263 | TopologyEvent topologyEvent = |
Yuta HIGUCHI | 170229f | 2014-02-17 15:47:54 -0800 | [diff] [blame] | 264 | new TopologyEvent(portEvent, registryService.getControllerId()); |
Pavlin Radoslavov | 721a2e0 | 2014-02-14 23:40:14 -0800 | [diff] [blame] | 265 | eventChannel.addEntry(topologyEvent.getID(), |
| 266 | topologyEvent); |
Jonathan Hart | 4c26327 | 2014-02-13 17:41:05 -0800 | [diff] [blame] | 267 | } |
Yuta HIGUCHI | 75c51ed | 2014-02-13 17:02:26 -0800 | [diff] [blame] | 268 | // TODO handle invariant violation |
Jonathan Hart | 22eb988 | 2014-02-11 15:52:59 -0800 | [diff] [blame] | 269 | } |
| 270 | |
| 271 | @Override |
| 272 | public void removePortEvent(PortEvent portEvent) { |
Jonathan Hart | 4c26327 | 2014-02-13 17:41:05 -0800 | [diff] [blame] | 273 | if (prepareForRemovePortEvent(portEvent)) { |
| 274 | datastore.deactivatePort(portEvent); |
| 275 | removePort(portEvent); |
Pavlin Radoslavov | 721a2e0 | 2014-02-14 23:40:14 -0800 | [diff] [blame] | 276 | // Send out notification |
| 277 | eventChannel.removeEntry(portEvent.getID()); |
Jonathan Hart | 4c26327 | 2014-02-13 17:41:05 -0800 | [diff] [blame] | 278 | } |
Yuta HIGUCHI | 75c51ed | 2014-02-13 17:02:26 -0800 | [diff] [blame] | 279 | // TODO handle invariant violation |
Jonathan Hart | 22eb988 | 2014-02-11 15:52:59 -0800 | [diff] [blame] | 280 | } |
| 281 | |
| 282 | @Override |
| 283 | public void putLinkEvent(LinkEvent linkEvent) { |
Yuta HIGUCHI | d02e928 | 2014-02-12 09:24:41 -0800 | [diff] [blame] | 284 | if (prepareForAddLinkEvent(linkEvent)) { |
Jonathan Hart | 22eb988 | 2014-02-11 15:52:59 -0800 | [diff] [blame] | 285 | datastore.addLink(linkEvent); |
| 286 | putLink(linkEvent); |
Pavlin Radoslavov | 721a2e0 | 2014-02-14 23:40:14 -0800 | [diff] [blame] | 287 | // Send out notification |
| 288 | TopologyEvent topologyEvent = |
Yuta HIGUCHI | 170229f | 2014-02-17 15:47:54 -0800 | [diff] [blame] | 289 | new TopologyEvent(linkEvent, registryService.getControllerId()); |
Pavlin Radoslavov | 721a2e0 | 2014-02-14 23:40:14 -0800 | [diff] [blame] | 290 | eventChannel.addEntry(topologyEvent.getID(), |
| 291 | topologyEvent); |
Jonathan Hart | 22eb988 | 2014-02-11 15:52:59 -0800 | [diff] [blame] | 292 | } |
| 293 | // TODO handle invariant violation |
| 294 | } |
| 295 | |
| 296 | @Override |
| 297 | public void removeLinkEvent(LinkEvent linkEvent) { |
Yuta HIGUCHI | 71e7a05 | 2014-02-17 22:14:15 -0800 | [diff] [blame] | 298 | removeLinkEvent(linkEvent, false); |
| 299 | |
| 300 | } |
| 301 | |
| 302 | private void removeLinkEvent(LinkEvent linkEvent, boolean dstCheckBeforeDBmodify) { |
Yuta HIGUCHI | d02e928 | 2014-02-12 09:24:41 -0800 | [diff] [blame] | 303 | if (prepareForRemoveLinkEvent(linkEvent)) { |
Yuta HIGUCHI | 71e7a05 | 2014-02-17 22:14:15 -0800 | [diff] [blame] | 304 | if (dstCheckBeforeDBmodify) { |
| 305 | // write to DB only if it is owner of the dst dpid |
| 306 | if (registryService.hasControl(linkEvent.getDst().dpid)) { |
| 307 | datastore.removeLink(linkEvent); |
| 308 | } |
| 309 | } else { |
| 310 | datastore.removeLink(linkEvent); |
| 311 | } |
Jonathan Hart | 22eb988 | 2014-02-11 15:52:59 -0800 | [diff] [blame] | 312 | removeLink(linkEvent); |
Pavlin Radoslavov | 721a2e0 | 2014-02-14 23:40:14 -0800 | [diff] [blame] | 313 | // Send out notification |
| 314 | eventChannel.removeEntry(linkEvent.getID()); |
Jonathan Hart | 22eb988 | 2014-02-11 15:52:59 -0800 | [diff] [blame] | 315 | } |
| 316 | // TODO handle invariant violation |
| 317 | } |
| 318 | |
| 319 | @Override |
Yuta HIGUCHI | 586d33e | 2014-02-13 17:05:08 -0800 | [diff] [blame] | 320 | public void putDeviceEvent(DeviceEvent deviceEvent) { |
| 321 | if (prepareForAddDeviceEvent(deviceEvent)) { |
| 322 | // datastore.addDevice(deviceEvent); |
Yuta HIGUCHI | d457c05 | 2014-02-14 18:33:04 -0800 | [diff] [blame] | 323 | // putDevice(deviceEvent); |
Pavlin Radoslavov | 721a2e0 | 2014-02-14 23:40:14 -0800 | [diff] [blame] | 324 | // Send out notification |
| 325 | TopologyEvent topologyEvent = |
Yuta HIGUCHI | 170229f | 2014-02-17 15:47:54 -0800 | [diff] [blame] | 326 | new TopologyEvent(deviceEvent, registryService.getControllerId()); |
Pavlin Radoslavov | 721a2e0 | 2014-02-14 23:40:14 -0800 | [diff] [blame] | 327 | eventChannel.addEntry(topologyEvent.getID(), |
| 328 | topologyEvent); |
Yuta HIGUCHI | 586d33e | 2014-02-13 17:05:08 -0800 | [diff] [blame] | 329 | } |
| 330 | // TODO handle invariant violation |
| 331 | // XXX if prepareFor~ method returned false, event should be dropped |
Jonathan Hart | 22eb988 | 2014-02-11 15:52:59 -0800 | [diff] [blame] | 332 | } |
| 333 | |
| 334 | @Override |
| 335 | public void removeDeviceEvent(DeviceEvent deviceEvent) { |
Yuta HIGUCHI | 586d33e | 2014-02-13 17:05:08 -0800 | [diff] [blame] | 336 | if (prepareForRemoveDeviceEvent(deviceEvent)) { |
| 337 | // datastore.removeDevice(deviceEvent); |
Yuta HIGUCHI | d457c05 | 2014-02-14 18:33:04 -0800 | [diff] [blame] | 338 | // removeDevice(deviceEvent); |
Pavlin Radoslavov | 721a2e0 | 2014-02-14 23:40:14 -0800 | [diff] [blame] | 339 | // Send out notification |
| 340 | eventChannel.removeEntry(deviceEvent.getID()); |
Yuta HIGUCHI | 586d33e | 2014-02-13 17:05:08 -0800 | [diff] [blame] | 341 | } |
| 342 | // TODO handle invariant violation |
| 343 | // XXX if prepareFor~ method returned false, event should be dropped |
Jonathan Hart | 22eb988 | 2014-02-11 15:52:59 -0800 | [diff] [blame] | 344 | } |
Yuta HIGUCHI | cd922f4 | 2014-02-11 18:59:11 -0800 | [diff] [blame] | 345 | |
Jonathan Hart | 22eb988 | 2014-02-11 15:52:59 -0800 | [diff] [blame] | 346 | /* ***************** |
Yuta HIGUCHI | d02e928 | 2014-02-12 09:24:41 -0800 | [diff] [blame] | 347 | * Internal methods to maintain invariants of the network graph |
Jonathan Hart | 22eb988 | 2014-02-11 15:52:59 -0800 | [diff] [blame] | 348 | * *****************/ |
Yuta HIGUCHI | cd922f4 | 2014-02-11 18:59:11 -0800 | [diff] [blame] | 349 | |
Yuta HIGUCHI | d02e928 | 2014-02-12 09:24:41 -0800 | [diff] [blame] | 350 | /** |
| 351 | * |
| 352 | * @param swEvt |
| 353 | * @return true if ready to accept event. |
| 354 | */ |
| 355 | private boolean prepareForAddSwitchEvent(SwitchEvent swEvt) { |
Yuta HIGUCHI | 76df247 | 2014-02-12 22:36:51 -0800 | [diff] [blame] | 356 | // No show stopping precondition |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 357 | // Prep: remove(deactivate) Ports on Switch, which is not on event |
| 358 | removePortsNotOnEvent(swEvt); |
| 359 | return true; |
Jonathan Hart | 22eb988 | 2014-02-11 15:52:59 -0800 | [diff] [blame] | 360 | } |
Yuta HIGUCHI | cd922f4 | 2014-02-11 18:59:11 -0800 | [diff] [blame] | 361 | |
Yuta HIGUCHI | d02e928 | 2014-02-12 09:24:41 -0800 | [diff] [blame] | 362 | private boolean prepareForRemoveSwitchEvent(SwitchEvent swEvt) { |
Yuta HIGUCHI | 76df247 | 2014-02-12 22:36:51 -0800 | [diff] [blame] | 363 | // No show stopping precondition |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 364 | // Prep: remove(deactivate) Ports on Switch, which is not on event |
| 365 | // XXX may be remove switch should imply wipe all ports |
| 366 | removePortsNotOnEvent(swEvt); |
| 367 | return true; |
| 368 | } |
Yuta HIGUCHI | d02e928 | 2014-02-12 09:24:41 -0800 | [diff] [blame] | 369 | |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 370 | private void removePortsNotOnEvent(SwitchEvent swEvt) { |
| 371 | Switch sw = switches.get( swEvt.getDpid() ); |
| 372 | if ( sw != null ) { |
| 373 | Set<Long> port_noOnEvent = new HashSet<>(); |
| 374 | for( PortEvent portEvent : swEvt.getPorts()) { |
| 375 | port_noOnEvent.add(portEvent.getNumber()); |
| 376 | } |
| 377 | // Existing ports not on event should be removed. |
| 378 | // TODO Should batch eventually for performance? |
Jonathan Hart | 480c557 | 2014-02-14 18:28:16 -0800 | [diff] [blame] | 379 | List<Port> portsToRemove = new ArrayList<Port>(); |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 380 | for( Port p : sw.getPorts() ) { |
| 381 | if ( !port_noOnEvent.contains(p.getNumber()) ) { |
Jonathan Hart | 480c557 | 2014-02-14 18:28:16 -0800 | [diff] [blame] | 382 | //PortEvent rmEvent = new PortEvent(p.getSwitch().getDpid(), p.getNumber()); |
| 383 | // calling Discovery removePort() API to wipe from DB, etc. |
| 384 | //removePortEvent(rmEvent); |
Yuta HIGUCHI | 240bf07 | 2014-02-17 10:55:21 -0800 | [diff] [blame] | 385 | |
Jonathan Hart | 480c557 | 2014-02-14 18:28:16 -0800 | [diff] [blame] | 386 | // We can't remove ports here because this will trigger a remove |
| 387 | // from the switch's port list, which we are currently iterating |
| 388 | // over. |
| 389 | portsToRemove.add(p); |
| 390 | } |
| 391 | } |
| 392 | for (Port p : portsToRemove) { |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 393 | PortEvent rmEvent = new PortEvent(p.getSwitch().getDpid(), p.getNumber()); |
| 394 | // calling Discovery removePort() API to wipe from DB, etc. |
| 395 | removePortEvent(rmEvent); |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 396 | } |
| 397 | } |
Jonathan Hart | 22eb988 | 2014-02-11 15:52:59 -0800 | [diff] [blame] | 398 | } |
Yuta HIGUCHI | cd922f4 | 2014-02-11 18:59:11 -0800 | [diff] [blame] | 399 | |
Yuta HIGUCHI | d02e928 | 2014-02-12 09:24:41 -0800 | [diff] [blame] | 400 | private boolean prepareForAddPortEvent(PortEvent portEvt) { |
Yuta HIGUCHI | d02e928 | 2014-02-12 09:24:41 -0800 | [diff] [blame] | 401 | // Parent Switch must exist |
| 402 | if ( getSwitch(portEvt.getDpid()) == null) { |
Jonathan Hart | 0a4846e | 2014-02-18 11:03:40 -0800 | [diff] [blame^] | 403 | log.warn("Dropping add port event because switch doesn't exist: {}", |
| 404 | portEvt); |
Yuta HIGUCHI | d02e928 | 2014-02-12 09:24:41 -0800 | [diff] [blame] | 405 | return false; |
| 406 | } |
| 407 | // Prep: None |
Jonathan Hart | 22eb988 | 2014-02-11 15:52:59 -0800 | [diff] [blame] | 408 | return true; |
| 409 | } |
Yuta HIGUCHI | cd922f4 | 2014-02-11 18:59:11 -0800 | [diff] [blame] | 410 | |
Yuta HIGUCHI | d02e928 | 2014-02-12 09:24:41 -0800 | [diff] [blame] | 411 | private boolean prepareForRemovePortEvent(PortEvent portEvt) { |
Yuta HIGUCHI | d02e928 | 2014-02-12 09:24:41 -0800 | [diff] [blame] | 412 | // Parent Switch must exist |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 413 | Switch sw = getSwitch(portEvt.getDpid()); |
| 414 | if ( sw == null ) { |
Yuta HIGUCHI | 88be0f2 | 2014-02-14 17:20:43 -0800 | [diff] [blame] | 415 | log.debug("Switch already removed? {}", portEvt); |
Yuta HIGUCHI | d02e928 | 2014-02-12 09:24:41 -0800 | [diff] [blame] | 416 | return false; |
| 417 | } |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 418 | Port port = sw.getPort(portEvt.getNumber()); |
| 419 | if ( port == null ) { |
| 420 | log.debug("Port already removed? {}", portEvt); |
| 421 | // let it pass |
| 422 | return true; |
| 423 | } |
| 424 | |
| 425 | // Prep: Remove Link and Device Attachment |
Yuta HIGUCHI | 240bf07 | 2014-02-17 10:55:21 -0800 | [diff] [blame] | 426 | ArrayList<DeviceEvent> deviceEvts = new ArrayList<>(); |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 427 | for (Device device : port.getDevices()) { |
Yuta HIGUCHI | 88be0f2 | 2014-02-14 17:20:43 -0800 | [diff] [blame] | 428 | log.debug("Removing Device {} on Port {}", device, portEvt); |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 429 | DeviceEvent devEvt = new DeviceEvent(device.getMacAddress()); |
| 430 | devEvt.addAttachmentPoint(new SwitchPort(port.getSwitch().getDpid(), port.getNumber())); |
Yuta HIGUCHI | 240bf07 | 2014-02-17 10:55:21 -0800 | [diff] [blame] | 431 | deviceEvts.add(devEvt); |
| 432 | } |
| 433 | for (DeviceEvent devEvt : deviceEvts) { |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 434 | // calling Discovery API to wipe from DB, etc. |
| 435 | removeDeviceEvent(devEvt); |
| 436 | } |
Yuta HIGUCHI | 240bf07 | 2014-02-17 10:55:21 -0800 | [diff] [blame] | 437 | |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 438 | Set<Link> links = new HashSet<>(); |
| 439 | links.add(port.getOutgoingLink()); |
| 440 | links.add(port.getIncomingLink()); |
| 441 | for ( Link link : links) { |
| 442 | if (link == null ) { |
| 443 | continue; |
| 444 | } |
Yuta HIGUCHI | 88be0f2 | 2014-02-14 17:20:43 -0800 | [diff] [blame] | 445 | log.debug("Removing Link {} on Port {}", link, portEvt); |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 446 | LinkEvent linkEvent = new LinkEvent(link.getSourceSwitchDpid(), link.getSourcePortNumber(), link.getDestinationSwitchDpid(), link.getDestinationPortNumber()); |
| 447 | // calling Discovery API to wipe from DB, etc. |
Yuta HIGUCHI | 71e7a05 | 2014-02-17 22:14:15 -0800 | [diff] [blame] | 448 | |
| 449 | // Call internal remove Link, which will check |
| 450 | // ownership of DST dpid and modify DB only if it is the owner |
| 451 | removeLinkEvent(linkEvent, true); |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 452 | } |
Jonathan Hart | 22eb988 | 2014-02-11 15:52:59 -0800 | [diff] [blame] | 453 | return true; |
| 454 | } |
Yuta HIGUCHI | cd922f4 | 2014-02-11 18:59:11 -0800 | [diff] [blame] | 455 | |
Yuta HIGUCHI | d02e928 | 2014-02-12 09:24:41 -0800 | [diff] [blame] | 456 | private boolean prepareForAddLinkEvent(LinkEvent linkEvt) { |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 457 | // Src/Dst Switch must exist |
| 458 | Switch srcSw = getSwitch(linkEvt.getSrc().dpid); |
| 459 | Switch dstSw = getSwitch(linkEvt.getDst().dpid); |
| 460 | if ( srcSw == null || dstSw == null ) { |
Jonathan Hart | 0a4846e | 2014-02-18 11:03:40 -0800 | [diff] [blame^] | 461 | log.warn("Dropping add link event because switch doesn't exist: {}", |
| 462 | linkEvt); |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 463 | return false; |
| 464 | } |
| 465 | // Src/Dst Port must exist |
| 466 | Port srcPort = srcSw.getPort(linkEvt.getSrc().number); |
Jonathan Hart | 4c26327 | 2014-02-13 17:41:05 -0800 | [diff] [blame] | 467 | Port dstPort = dstSw.getPort(linkEvt.getDst().number); |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 468 | if ( srcPort == null || dstPort == null ) { |
Jonathan Hart | 0a4846e | 2014-02-18 11:03:40 -0800 | [diff] [blame^] | 469 | log.warn("Dropping add link event because port doesn't exist: {}", |
| 470 | linkEvt); |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 471 | return false; |
| 472 | } |
| 473 | |
| 474 | // Prep: remove Device attachment on both Ports |
Yuta HIGUCHI | 240bf07 | 2014-02-17 10:55:21 -0800 | [diff] [blame] | 475 | ArrayList<DeviceEvent> deviceEvents = new ArrayList<>(); |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 476 | for (Device device : srcPort.getDevices()) { |
| 477 | DeviceEvent devEvt = new DeviceEvent(device.getMacAddress()); |
| 478 | devEvt.addAttachmentPoint(new SwitchPort(srcPort.getSwitch().getDpid(), srcPort.getNumber())); |
Yuta HIGUCHI | 240bf07 | 2014-02-17 10:55:21 -0800 | [diff] [blame] | 479 | deviceEvents.add(devEvt); |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 480 | } |
| 481 | for (Device device : dstPort.getDevices()) { |
| 482 | DeviceEvent devEvt = new DeviceEvent(device.getMacAddress()); |
| 483 | devEvt.addAttachmentPoint(new SwitchPort(dstPort.getSwitch().getDpid(), dstPort.getNumber())); |
Yuta HIGUCHI | 240bf07 | 2014-02-17 10:55:21 -0800 | [diff] [blame] | 484 | deviceEvents.add(devEvt); |
| 485 | } |
| 486 | for (DeviceEvent devEvt : deviceEvents) { |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 487 | // calling Discovery API to wipe from DB, etc. |
| 488 | removeDeviceEvent(devEvt); |
| 489 | } |
| 490 | |
| 491 | return true; |
Jonathan Hart | 22eb988 | 2014-02-11 15:52:59 -0800 | [diff] [blame] | 492 | } |
Yuta HIGUCHI | cd922f4 | 2014-02-11 18:59:11 -0800 | [diff] [blame] | 493 | |
Yuta HIGUCHI | d02e928 | 2014-02-12 09:24:41 -0800 | [diff] [blame] | 494 | private boolean prepareForRemoveLinkEvent(LinkEvent linkEvt) { |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 495 | // Src/Dst Switch must exist |
| 496 | Switch srcSw = getSwitch(linkEvt.getSrc().dpid); |
| 497 | Switch dstSw = getSwitch(linkEvt.getDst().dpid); |
| 498 | if ( srcSw == null || dstSw == null ) { |
Jonathan Hart | 0a4846e | 2014-02-18 11:03:40 -0800 | [diff] [blame^] | 499 | log.warn("Dropping remove link event because switch doesn't exist: {}", linkEvt); |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 500 | return false; |
| 501 | } |
| 502 | // Src/Dst Port must exist |
| 503 | Port srcPort = srcSw.getPort(linkEvt.getSrc().number); |
Yuta HIGUCHI | 125c7df | 2014-02-14 12:28:10 -0800 | [diff] [blame] | 504 | Port dstPort = dstSw.getPort(linkEvt.getDst().number); |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 505 | if ( srcPort == null || dstPort == null ) { |
Jonathan Hart | 0a4846e | 2014-02-18 11:03:40 -0800 | [diff] [blame^] | 506 | log.warn("Dropping remove link event because port doesn't exist {}", linkEvt); |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 507 | return false; |
| 508 | } |
| 509 | |
Yuta HIGUCHI | 125c7df | 2014-02-14 12:28:10 -0800 | [diff] [blame] | 510 | Link link = srcPort.getOutgoingLink(); |
| 511 | |
| 512 | // Link is already gone, or different Link exist in memory |
| 513 | // XXX Check if we should reject or just accept these cases. |
| 514 | // it should be harmless to remove the Link on event from DB anyways |
| 515 | if (link == null || |
| 516 | !link.getDestinationPortNumber().equals(linkEvt.getDst().number) |
| 517 | || !link.getDestinationSwitchDpid().equals(linkEvt.getDst().dpid)) { |
Jonathan Hart | 0a4846e | 2014-02-18 11:03:40 -0800 | [diff] [blame^] | 518 | log.warn("Dropping remove link event because link doesn't exist: {}", linkEvt); |
Yuta HIGUCHI | 125c7df | 2014-02-14 12:28:10 -0800 | [diff] [blame] | 519 | return false; |
| 520 | } |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 521 | // Prep: None |
| 522 | return true; |
Jonathan Hart | 22eb988 | 2014-02-11 15:52:59 -0800 | [diff] [blame] | 523 | } |
Yuta HIGUCHI | cd922f4 | 2014-02-11 18:59:11 -0800 | [diff] [blame] | 524 | |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 525 | /** |
| 526 | * |
| 527 | * @param deviceEvt Event will be modified to remove inapplicable attachemntPoints/ipAddress |
| 528 | * @return false if this event should be dropped. |
| 529 | */ |
Yuta HIGUCHI | d02e928 | 2014-02-12 09:24:41 -0800 | [diff] [blame] | 530 | private boolean prepareForAddDeviceEvent(DeviceEvent deviceEvt) { |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 531 | boolean preconditionBroken = false; |
| 532 | ArrayList<PortEvent.SwitchPort> failedSwitchPort = new ArrayList<>(); |
| 533 | for ( PortEvent.SwitchPort swp : deviceEvt.getAttachmentPoints() ) { |
Yuta HIGUCHI | d02e928 | 2014-02-12 09:24:41 -0800 | [diff] [blame] | 534 | // Attached Ports' Parent Switch must exist |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 535 | Switch sw = getSwitch(swp.dpid); |
| 536 | if ( sw == null ) { |
| 537 | preconditionBroken = true; |
| 538 | failedSwitchPort.add(swp); |
| 539 | continue; |
| 540 | } |
Yuta HIGUCHI | d02e928 | 2014-02-12 09:24:41 -0800 | [diff] [blame] | 541 | // Attached Ports must exist |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 542 | Port port = sw.getPort(swp.number); |
| 543 | if ( port == null ) { |
| 544 | preconditionBroken = true; |
| 545 | failedSwitchPort.add(swp); |
| 546 | continue; |
| 547 | } |
Yuta HIGUCHI | d02e928 | 2014-02-12 09:24:41 -0800 | [diff] [blame] | 548 | // Attached Ports must not have Link |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 549 | if ( port.getOutgoingLink() != null || port.getIncomingLink() != null ) { |
| 550 | preconditionBroken = true; |
| 551 | failedSwitchPort.add(swp); |
| 552 | continue; |
| 553 | } |
| 554 | } |
Yuta HIGUCHI | d02e928 | 2014-02-12 09:24:41 -0800 | [diff] [blame] | 555 | |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 556 | // Rewriting event to exclude failed attachmentPoint |
| 557 | // XXX Assumption behind this is that inapplicable device event should |
| 558 | // be dropped, not deferred. If we decide to defer Device event, |
| 559 | // rewriting can become a problem |
| 560 | List<SwitchPort> attachmentPoints = deviceEvt.getAttachmentPoints(); |
| 561 | attachmentPoints.removeAll(failedSwitchPort); |
| 562 | deviceEvt.setAttachmentPoints(attachmentPoints); |
| 563 | |
| 564 | if ( deviceEvt.getAttachmentPoints().isEmpty() && deviceEvt.getIpAddresses().isEmpty() ) { |
Yuta HIGUCHI | 125c7df | 2014-02-14 12:28:10 -0800 | [diff] [blame] | 565 | // return false to represent: Nothing left to do for this event. Caller should drop event |
Yuta HIGUCHI | 8d762e9 | 2014-02-12 14:10:25 -0800 | [diff] [blame] | 566 | return false; |
| 567 | } |
| 568 | |
| 569 | // Should we return false to tell caller that the event was trimmed? |
| 570 | // if ( preconditionBroken ) { |
| 571 | // return false; |
| 572 | // } |
| 573 | |
| 574 | return true; |
Jonathan Hart | 22eb988 | 2014-02-11 15:52:59 -0800 | [diff] [blame] | 575 | } |
Yuta HIGUCHI | cd922f4 | 2014-02-11 18:59:11 -0800 | [diff] [blame] | 576 | |
Yuta HIGUCHI | d02e928 | 2014-02-12 09:24:41 -0800 | [diff] [blame] | 577 | private boolean prepareForRemoveDeviceEvent(DeviceEvent deviceEvt) { |
Yuta HIGUCHI | d02e928 | 2014-02-12 09:24:41 -0800 | [diff] [blame] | 578 | // No show stopping precondition? |
| 579 | // Prep: none |
Jonathan Hart | 22eb988 | 2014-02-11 15:52:59 -0800 | [diff] [blame] | 580 | return true; |
| 581 | } |
Yuta HIGUCHI | 928fa68 | 2014-02-11 19:07:57 -0800 | [diff] [blame] | 582 | |
Yuta HIGUCHI | 76df247 | 2014-02-12 22:36:51 -0800 | [diff] [blame] | 583 | /* ****************************** |
| 584 | * NetworkGraphReplicationInterface methods |
| 585 | * ******************************/ |
| 586 | |
Yuta HIGUCHI | 928fa68 | 2014-02-11 19:07:57 -0800 | [diff] [blame] | 587 | @Override |
| 588 | public void putSwitchReplicationEvent(SwitchEvent switchEvent) { |
Yuta HIGUCHI | 9fc10ac | 2014-02-12 17:18:57 -0800 | [diff] [blame] | 589 | if (prepareForAddSwitchEvent(switchEvent)) { |
| 590 | putSwitch(switchEvent); |
| 591 | } |
| 592 | // TODO handle invariant violation |
Yuta HIGUCHI | a536e76 | 2014-02-17 21:47:28 -0800 | [diff] [blame] | 593 | // trigger instance local topology event handler |
| 594 | dispatchPutSwitchEvent(switchEvent); |
Yuta HIGUCHI | 928fa68 | 2014-02-11 19:07:57 -0800 | [diff] [blame] | 595 | } |
| 596 | |
| 597 | @Override |
| 598 | public void removeSwitchReplicationEvent(SwitchEvent switchEvent) { |
Yuta HIGUCHI | 9fc10ac | 2014-02-12 17:18:57 -0800 | [diff] [blame] | 599 | if (prepareForRemoveSwitchEvent(switchEvent)) { |
| 600 | removeSwitch(switchEvent); |
| 601 | } |
Yuta HIGUCHI | 125c7df | 2014-02-14 12:28:10 -0800 | [diff] [blame] | 602 | // TODO handle invariant violation |
Yuta HIGUCHI | a536e76 | 2014-02-17 21:47:28 -0800 | [diff] [blame] | 603 | // trigger instance local topology event handler |
| 604 | dispatchRemoveSwitchEvent(switchEvent); |
Yuta HIGUCHI | 928fa68 | 2014-02-11 19:07:57 -0800 | [diff] [blame] | 605 | } |
| 606 | |
| 607 | @Override |
| 608 | public void putPortReplicationEvent(PortEvent portEvent) { |
Yuta HIGUCHI | 9fc10ac | 2014-02-12 17:18:57 -0800 | [diff] [blame] | 609 | if (prepareForAddPortEvent(portEvent)) { |
| 610 | putPort(portEvent); |
| 611 | } |
Yuta HIGUCHI | 125c7df | 2014-02-14 12:28:10 -0800 | [diff] [blame] | 612 | // TODO handle invariant violation |
Yuta HIGUCHI | a536e76 | 2014-02-17 21:47:28 -0800 | [diff] [blame] | 613 | // trigger instance local topology event handler |
| 614 | dispatchPutPortEvent(portEvent); |
Yuta HIGUCHI | 928fa68 | 2014-02-11 19:07:57 -0800 | [diff] [blame] | 615 | } |
| 616 | |
| 617 | @Override |
| 618 | public void removePortReplicationEvent(PortEvent portEvent) { |
Yuta HIGUCHI | 9fc10ac | 2014-02-12 17:18:57 -0800 | [diff] [blame] | 619 | if (prepareForRemovePortEvent(portEvent)) { |
| 620 | removePort(portEvent); |
| 621 | } |
Yuta HIGUCHI | 125c7df | 2014-02-14 12:28:10 -0800 | [diff] [blame] | 622 | // TODO handle invariant violation |
Yuta HIGUCHI | a536e76 | 2014-02-17 21:47:28 -0800 | [diff] [blame] | 623 | // trigger instance local topology event handler |
| 624 | dispatchRemovePortEvent(portEvent); |
Yuta HIGUCHI | 928fa68 | 2014-02-11 19:07:57 -0800 | [diff] [blame] | 625 | } |
| 626 | |
| 627 | @Override |
| 628 | public void putLinkReplicationEvent(LinkEvent linkEvent) { |
Yuta HIGUCHI | 9fc10ac | 2014-02-12 17:18:57 -0800 | [diff] [blame] | 629 | if (prepareForAddLinkEvent(linkEvent)) { |
| 630 | putLink(linkEvent); |
| 631 | } |
Yuta HIGUCHI | 125c7df | 2014-02-14 12:28:10 -0800 | [diff] [blame] | 632 | // TODO handle invariant violation |
Yuta HIGUCHI | a536e76 | 2014-02-17 21:47:28 -0800 | [diff] [blame] | 633 | // trigger instance local topology event handler |
| 634 | dispatchPutLinkEvent(linkEvent); |
Yuta HIGUCHI | 928fa68 | 2014-02-11 19:07:57 -0800 | [diff] [blame] | 635 | } |
| 636 | |
| 637 | @Override |
| 638 | public void removeLinkReplicationEvent(LinkEvent linkEvent) { |
Yuta HIGUCHI | 9fc10ac | 2014-02-12 17:18:57 -0800 | [diff] [blame] | 639 | if (prepareForRemoveLinkEvent(linkEvent)) { |
| 640 | removeLink(linkEvent); |
| 641 | } |
Yuta HIGUCHI | 125c7df | 2014-02-14 12:28:10 -0800 | [diff] [blame] | 642 | // TODO handle invariant violation |
Yuta HIGUCHI | a536e76 | 2014-02-17 21:47:28 -0800 | [diff] [blame] | 643 | // trigger instance local topology event handler |
| 644 | dispatchRemoveLinkEvent(linkEvent); |
Yuta HIGUCHI | 928fa68 | 2014-02-11 19:07:57 -0800 | [diff] [blame] | 645 | } |
| 646 | |
| 647 | @Override |
| 648 | public void putDeviceReplicationEvent(DeviceEvent deviceEvent) { |
Yuta HIGUCHI | 9fc10ac | 2014-02-12 17:18:57 -0800 | [diff] [blame] | 649 | if (prepareForAddDeviceEvent(deviceEvent)) { |
| 650 | putDevice(deviceEvent); |
| 651 | } |
Yuta HIGUCHI | 125c7df | 2014-02-14 12:28:10 -0800 | [diff] [blame] | 652 | // TODO handle invariant violation |
Yuta HIGUCHI | a536e76 | 2014-02-17 21:47:28 -0800 | [diff] [blame] | 653 | // trigger instance local topology event handler |
| 654 | dispatchPutDeviceEvent(deviceEvent); |
Yuta HIGUCHI | 928fa68 | 2014-02-11 19:07:57 -0800 | [diff] [blame] | 655 | } |
| 656 | |
| 657 | @Override |
| 658 | public void removeDeviceReplicationEvent(DeviceEvent deviceEvent) { |
Yuta HIGUCHI | 9fc10ac | 2014-02-12 17:18:57 -0800 | [diff] [blame] | 659 | if (prepareForRemoveDeviceEvent(deviceEvent)) { |
| 660 | removeDevice(deviceEvent); |
| 661 | } |
Yuta HIGUCHI | 125c7df | 2014-02-14 12:28:10 -0800 | [diff] [blame] | 662 | // TODO handle invariant violation |
Yuta HIGUCHI | a536e76 | 2014-02-17 21:47:28 -0800 | [diff] [blame] | 663 | // trigger instance local topology event handler |
| 664 | dispatchRemoveDeviceEvent(deviceEvent); |
Yuta HIGUCHI | 928fa68 | 2014-02-11 19:07:57 -0800 | [diff] [blame] | 665 | } |
Yuta HIGUCHI | 76df247 | 2014-02-12 22:36:51 -0800 | [diff] [blame] | 666 | |
| 667 | /* ************************************************ |
| 668 | * Internal In-memory object mutation methods. |
| 669 | * ************************************************/ |
| 670 | |
| 671 | void putSwitch(SwitchEvent swEvt) { |
| 672 | if (swEvt == null) { |
| 673 | throw new IllegalArgumentException("Switch cannot be null"); |
| 674 | } |
| 675 | |
| 676 | Switch sw = switches.get(swEvt.getDpid()); |
| 677 | |
| 678 | if (sw == null) { |
| 679 | sw = new SwitchImpl(this, swEvt.getDpid()); |
| 680 | Switch existing = switches.putIfAbsent(swEvt.getDpid(), sw); |
| 681 | if (existing != null) { |
| 682 | log.warn( |
| 683 | "Concurrent putSwitch not expected. Continuing updating {}", |
| 684 | existing); |
| 685 | sw = existing; |
| 686 | } |
| 687 | } |
| 688 | |
| 689 | // Update when more attributes are added to Event object |
| 690 | // no attribute to update for now |
| 691 | |
| 692 | // TODO handle child Port event properly for performance |
| 693 | for (PortEvent portEvt : swEvt.getPorts() ) { |
| 694 | putPort(portEvt); |
| 695 | } |
| 696 | |
| 697 | } |
| 698 | |
| 699 | void removeSwitch(SwitchEvent swEvt) { |
| 700 | if (swEvt == null) { |
| 701 | throw new IllegalArgumentException("Switch cannot be null"); |
| 702 | } |
| 703 | |
| 704 | // TODO handle child Port event properly for performance |
| 705 | for (PortEvent portEvt : swEvt.getPorts() ) { |
| 706 | removePort(portEvt); |
| 707 | } |
| 708 | |
| 709 | Switch sw = switches.get(swEvt.getDpid()); |
| 710 | |
| 711 | if (sw == null) { |
| 712 | log.warn("Switch {} already removed, ignoring", swEvt); |
| 713 | return; |
| 714 | } |
| 715 | |
Yuta HIGUCHI | 317bf54 | 2014-02-17 11:02:39 -0800 | [diff] [blame] | 716 | // remove all ports if there still exist |
| 717 | ArrayList<PortEvent> portsToRemove = new ArrayList<>(); |
| 718 | for (Port port : sw.getPorts()) { |
Yuta HIGUCHI | 76df247 | 2014-02-12 22:36:51 -0800 | [diff] [blame] | 719 | log.warn( |
Yuta HIGUCHI | 317bf54 | 2014-02-17 11:02:39 -0800 | [diff] [blame] | 720 | "Port {} on Switch {} should be removed prior to removing Switch. Removing Port now", |
| 721 | port, swEvt); |
| 722 | PortEvent portEvt = new PortEvent(port.getDpid(), port.getNumber()); |
| 723 | portsToRemove.add(portEvt); |
Yuta HIGUCHI | 76df247 | 2014-02-12 22:36:51 -0800 | [diff] [blame] | 724 | } |
Yuta HIGUCHI | 0a4bd19 | 2014-02-17 13:52:34 -0800 | [diff] [blame] | 725 | for (PortEvent portEvt : portsToRemove) { |
Yuta HIGUCHI | 317bf54 | 2014-02-17 11:02:39 -0800 | [diff] [blame] | 726 | // XXX calling removePortEvent() may trigger duplicate event, once at prepare phase, second time here |
| 727 | // If event can be squashed, ignored etc. at receiver side it shouldn't be a problem, but if not |
| 728 | // need to re-visit this issue. |
| 729 | |
| 730 | // Note: removePortEvent() implies removal of attached Device, etc. |
| 731 | // if we decide not to call removePortEvent(), Device needs to be handled properly |
| 732 | removePortEvent(portEvt); |
Yuta HIGUCHI | 76df247 | 2014-02-12 22:36:51 -0800 | [diff] [blame] | 733 | } |
| 734 | |
| 735 | boolean removed = switches.remove(swEvt.getDpid(), sw); |
| 736 | if (removed) { |
| 737 | log.warn( |
| 738 | "Switch instance was replaced concurrently while removing {}. Something is not right.", |
| 739 | sw); |
| 740 | } |
| 741 | } |
| 742 | |
| 743 | void putPort(PortEvent portEvt) { |
| 744 | if (portEvt == null) { |
| 745 | throw new IllegalArgumentException("Port cannot be null"); |
| 746 | } |
| 747 | Switch sw = switches.get(portEvt.getDpid()); |
| 748 | if (sw == null) { |
| 749 | throw new BrokenInvariantException(String.format( |
| 750 | "Switch with dpid %s did not exist.", |
| 751 | new Dpid(portEvt.getDpid()))); |
| 752 | } |
| 753 | Port p = sw.getPort(portEvt.getNumber()); |
| 754 | PortImpl port = null; |
| 755 | if (p != null) { |
| 756 | port = getPortImpl(p); |
| 757 | } |
| 758 | |
| 759 | if (port == null) { |
| 760 | port = new PortImpl(this, sw, portEvt.getNumber()); |
| 761 | } |
| 762 | |
| 763 | // TODO update attributes |
| 764 | |
| 765 | SwitchImpl s = getSwitchImpl(sw); |
| 766 | s.addPort(port); |
| 767 | } |
| 768 | |
| 769 | void removePort(PortEvent portEvt) { |
| 770 | if (portEvt == null) { |
| 771 | throw new IllegalArgumentException("Port cannot be null"); |
| 772 | } |
| 773 | |
| 774 | Switch sw = switches.get(portEvt.getDpid()); |
| 775 | if (sw == null) { |
| 776 | log.warn("Parent Switch for Port {} already removed, ignoring", portEvt); |
| 777 | return; |
| 778 | } |
| 779 | |
| 780 | Port p = sw.getPort(portEvt.getNumber()); |
| 781 | if (p == null) { |
| 782 | log.warn("Port {} already removed, ignoring", portEvt); |
| 783 | return; |
| 784 | } |
| 785 | |
Yuta HIGUCHI | de04064 | 2014-02-17 11:03:39 -0800 | [diff] [blame] | 786 | // Remove Link and Device Attachment |
| 787 | for (Device device : p.getDevices()) { |
| 788 | log.debug("Removing Device {} on Port {}", device, portEvt); |
| 789 | DeviceEvent devEvt = new DeviceEvent(device.getMacAddress()); |
| 790 | devEvt.addAttachmentPoint(new SwitchPort(p.getSwitch().getDpid(), p.getNumber())); |
Yuta HIGUCHI | 76df247 | 2014-02-12 22:36:51 -0800 | [diff] [blame] | 791 | |
Yuta HIGUCHI | de04064 | 2014-02-17 11:03:39 -0800 | [diff] [blame] | 792 | // XXX calling removeDeviceEvent() may trigger duplicate event, once at prepare phase, second time here |
| 793 | // If event can be squashed, ignored etc. at receiver side it shouldn't be a problem, but if not |
| 794 | // need to re-visit |
| 795 | |
| 796 | // calling Discovery API to wipe from DB, etc. |
| 797 | removeDeviceEvent(devEvt); |
Yuta HIGUCHI | 76df247 | 2014-02-12 22:36:51 -0800 | [diff] [blame] | 798 | } |
Yuta HIGUCHI | de04064 | 2014-02-17 11:03:39 -0800 | [diff] [blame] | 799 | Set<Link> links = new HashSet<>(); |
| 800 | links.add(p.getOutgoingLink()); |
| 801 | links.add(p.getIncomingLink()); |
| 802 | ArrayList<LinkEvent> linksToRemove = new ArrayList<>(); |
| 803 | for (Link link : links) { |
| 804 | if (link == null) { |
| 805 | continue; |
| 806 | } |
| 807 | log.debug("Removing Link {} on Port {}", link, portEvt); |
| 808 | LinkEvent linkEvent = new LinkEvent(link.getSourceSwitchDpid(), link.getSourcePortNumber(), link.getDestinationSwitchDpid(), link.getDestinationPortNumber()); |
| 809 | linksToRemove.add(linkEvent); |
Yuta HIGUCHI | 76df247 | 2014-02-12 22:36:51 -0800 | [diff] [blame] | 810 | } |
Yuta HIGUCHI | de04064 | 2014-02-17 11:03:39 -0800 | [diff] [blame] | 811 | for (LinkEvent linkEvent : linksToRemove) { |
| 812 | // XXX calling removeLinkEvent() may trigger duplicate event, once at prepare phase, second time here |
| 813 | // If event can be squashed, ignored etc. at receiver side it shouldn't be a problem, but if not |
| 814 | // need to re-visit |
| 815 | |
| 816 | // calling Discovery API to wipe from DB, etc. |
| 817 | removeLinkEvent(linkEvent); |
Yuta HIGUCHI | 76df247 | 2014-02-12 22:36:51 -0800 | [diff] [blame] | 818 | } |
| 819 | |
| 820 | // remove Port from Switch |
| 821 | SwitchImpl s = getSwitchImpl(sw); |
| 822 | s.removePort(p); |
| 823 | } |
| 824 | |
| 825 | void putLink(LinkEvent linkEvt) { |
| 826 | if (linkEvt == null) { |
| 827 | throw new IllegalArgumentException("Link cannot be null"); |
| 828 | } |
| 829 | |
| 830 | Switch srcSw = switches.get(linkEvt.getSrc().dpid); |
| 831 | if (srcSw == null) { |
| 832 | throw new BrokenInvariantException( |
| 833 | String.format( |
| 834 | "Switch with dpid %s did not exist.", |
| 835 | new Dpid(linkEvt.getSrc().dpid))); |
| 836 | } |
| 837 | |
| 838 | Switch dstSw = switches.get(linkEvt.getDst().dpid); |
| 839 | if (dstSw == null) { |
| 840 | throw new BrokenInvariantException( |
| 841 | String.format( |
| 842 | "Switch with dpid %s did not exist.", |
| 843 | new Dpid(linkEvt.getDst().dpid))); |
| 844 | } |
| 845 | |
| 846 | Port srcPort = srcSw.getPort(linkEvt.getSrc().number); |
| 847 | if (srcPort == null) { |
| 848 | throw new BrokenInvariantException( |
| 849 | String.format( |
| 850 | "Src Port %s of a Link did not exist.", |
| 851 | linkEvt.getSrc() )); |
| 852 | } |
| 853 | |
| 854 | Port dstPort = dstSw.getPort(linkEvt.getDst().number); |
| 855 | if (dstPort == null) { |
| 856 | throw new BrokenInvariantException( |
| 857 | String.format( |
| 858 | "Dst Port %s of a Link did not exist.", |
| 859 | linkEvt.getDst() )); |
| 860 | } |
| 861 | |
| 862 | // getting Link instance from destination port incoming Link |
| 863 | Link l = dstPort.getIncomingLink(); |
| 864 | LinkImpl link = null; |
| 865 | assert( l == srcPort.getOutgoingLink() ); |
| 866 | if (l != null) { |
| 867 | link = getLinkImpl(l); |
| 868 | } |
| 869 | |
| 870 | if (link == null) { |
| 871 | link = new LinkImpl(this, srcPort, dstPort); |
| 872 | } |
| 873 | |
| 874 | |
| 875 | PortImpl dstPortMem = getPortImpl(dstPort); |
| 876 | PortImpl srcPortMem = getPortImpl(srcPort); |
| 877 | |
| 878 | // Add Link first to avoid further Device addition |
| 879 | |
| 880 | // add Link to Port |
| 881 | dstPortMem.setIncomingLink(link); |
| 882 | srcPortMem.setOutgoingLink(link); |
| 883 | |
| 884 | // remove Device Pointing to Port if any |
| 885 | for(Device d : dstPortMem.getDevices() ) { |
| 886 | log.error("Device {} on Port {} should have been removed prior to adding Link {}", d, dstPort, linkEvt); |
| 887 | DeviceImpl dev = getDeviceImpl(d); |
| 888 | dev.removeAttachmentPoint(dstPort); |
Yuta HIGUCHI | 407261a | 2014-02-13 16:34:06 -0800 | [diff] [blame] | 889 | // This implies that change is made to Device Object. |
| 890 | // sending Device attachment point removed event |
| 891 | DeviceEvent rmEvent = new DeviceEvent(d.getMacAddress()); |
| 892 | rmEvent.addAttachmentPoint(new SwitchPort(dstPort.getDpid(), dstPort.getNumber())); |
| 893 | removeDeviceEvent(rmEvent); |
Yuta HIGUCHI | 76df247 | 2014-02-12 22:36:51 -0800 | [diff] [blame] | 894 | } |
| 895 | dstPortMem.removeAllDevice(); |
| 896 | for(Device d : srcPortMem.getDevices() ) { |
| 897 | log.error("Device {} on Port {} should have been removed prior to adding Link {}", d, srcPort, linkEvt); |
| 898 | DeviceImpl dev = getDeviceImpl(d); |
| 899 | dev.removeAttachmentPoint(srcPort); |
Yuta HIGUCHI | 407261a | 2014-02-13 16:34:06 -0800 | [diff] [blame] | 900 | // This implies that change is made to Device Object. |
| 901 | // sending Device attachment point removed event |
| 902 | DeviceEvent rmEvent = new DeviceEvent(d.getMacAddress()); |
| 903 | rmEvent.addAttachmentPoint(new SwitchPort(dstPort.getDpid(), dstPort.getNumber())); |
| 904 | removeDeviceEvent(rmEvent); |
Yuta HIGUCHI | 76df247 | 2014-02-12 22:36:51 -0800 | [diff] [blame] | 905 | } |
| 906 | srcPortMem.removeAllDevice(); |
| 907 | |
| 908 | } |
| 909 | |
| 910 | void removeLink(LinkEvent linkEvt) { |
| 911 | if (linkEvt == null) { |
| 912 | throw new IllegalArgumentException("Link cannot be null"); |
| 913 | } |
| 914 | |
| 915 | Switch srcSw = switches.get(linkEvt.getSrc().dpid); |
| 916 | if (srcSw == null) { |
| 917 | log.warn("Src Switch for Link {} already removed, ignoring", linkEvt); |
| 918 | return; |
| 919 | } |
| 920 | |
| 921 | Switch dstSw = switches.get(linkEvt.getDst().dpid); |
| 922 | if (dstSw == null) { |
| 923 | log.warn("Dst Switch for Link {} already removed, ignoring", linkEvt); |
| 924 | return; |
| 925 | } |
| 926 | |
| 927 | Port srcPort = srcSw.getPort(linkEvt.getSrc().number); |
| 928 | if (srcPort == null) { |
| 929 | log.warn("Src Port for Link {} already removed, ignoring", linkEvt); |
| 930 | return; |
| 931 | } |
| 932 | |
| 933 | Port dstPort = dstSw.getPort(linkEvt.getDst().number); |
| 934 | if (dstPort == null) { |
| 935 | log.warn("Dst Port for Link {} already removed, ignoring", linkEvt); |
| 936 | return; |
| 937 | } |
| 938 | |
| 939 | Link l = dstPort.getIncomingLink(); |
| 940 | if ( l == null ) { |
| 941 | log.warn("Link {} already removed on destination Port", linkEvt); |
| 942 | } |
| 943 | l = srcPort.getOutgoingLink(); |
| 944 | if ( l == null ) { |
| 945 | log.warn("Link {} already removed on src Port", linkEvt); |
| 946 | } |
| 947 | |
| 948 | getPortImpl(dstPort).setIncomingLink(null); |
| 949 | getPortImpl(srcPort).setOutgoingLink(null); |
| 950 | } |
| 951 | |
| 952 | // XXX Need to rework Device related |
| 953 | void putDevice(DeviceEvent deviceEvt) { |
| 954 | if (deviceEvt == null) { |
| 955 | throw new IllegalArgumentException("Device cannot be null"); |
| 956 | } |
| 957 | |
| 958 | Device device = getDeviceByMac(deviceEvt.getMac()); |
| 959 | if ( device == null ) { |
| 960 | device = new DeviceImpl(this, deviceEvt.getMac()); |
| 961 | Device existing = mac2Device.putIfAbsent(deviceEvt.getMac(), device); |
| 962 | if (existing != null) { |
| 963 | log.warn( |
| 964 | "Concurrent putDevice seems to be in action. Continuing updating {}", |
| 965 | existing); |
| 966 | device = existing; |
| 967 | } |
| 968 | } |
| 969 | DeviceImpl memDevice = getDeviceImpl(device); |
| 970 | |
| 971 | // for each attachment point |
| 972 | for (SwitchPort swp : deviceEvt.getAttachmentPoints() ) { |
| 973 | // Attached Ports' Parent Switch must exist |
| 974 | Switch sw = getSwitch(swp.dpid); |
| 975 | if ( sw == null ) { |
Yuta HIGUCHI | 2571905 | 2014-02-13 14:42:06 -0800 | [diff] [blame] | 976 | log.warn("Switch for the attachment point {} did not exist. skipping mutation", swp); |
Yuta HIGUCHI | 76df247 | 2014-02-12 22:36:51 -0800 | [diff] [blame] | 977 | continue; |
| 978 | } |
| 979 | // Attached Ports must exist |
| 980 | Port port = sw.getPort(swp.number); |
| 981 | if ( port == null ) { |
Yuta HIGUCHI | 2571905 | 2014-02-13 14:42:06 -0800 | [diff] [blame] | 982 | log.warn("Port for the attachment point {} did not exist. skipping mutation", swp); |
Yuta HIGUCHI | 76df247 | 2014-02-12 22:36:51 -0800 | [diff] [blame] | 983 | continue; |
| 984 | } |
| 985 | // Attached Ports must not have Link |
| 986 | if ( port.getOutgoingLink() != null || port.getIncomingLink() != null ) { |
| 987 | log.warn("Link (Out:{},In:{}) exist on the attachment point, skipping mutation.", port.getOutgoingLink(), port.getIncomingLink()); |
| 988 | continue; |
| 989 | } |
| 990 | |
| 991 | // finally add Device <-> Port on In-memory structure |
| 992 | PortImpl memPort = getPortImpl(port); |
| 993 | memPort.addDevice(device); |
| 994 | memDevice.addAttachmentPoint(port); |
| 995 | } |
| 996 | |
| 997 | // for each IP address |
| 998 | for( InetAddress ipAddr : deviceEvt.getIpAddresses() ) { |
| 999 | // Add Device -> IP |
| 1000 | memDevice.addIpAddress(ipAddr); |
| 1001 | |
| 1002 | // Add IP -> Set<Device> |
| 1003 | boolean updated = false; |
| 1004 | do { |
| 1005 | Set<Device> devices = this.addr2Device.get(ipAddr); |
| 1006 | if ( devices == null ) { |
| 1007 | devices = new HashSet<>(); |
| 1008 | Set<Device> existing = this.addr2Device.putIfAbsent(ipAddr, devices); |
| 1009 | if ( existing == null ) { |
| 1010 | // success |
| 1011 | updated = true; |
| 1012 | } |
| 1013 | } else { |
| 1014 | Set<Device> updateDevices = new HashSet<>(devices); |
| 1015 | updateDevices.add(device); |
| 1016 | updated = this.addr2Device.replace(ipAddr, devices, updateDevices); |
| 1017 | } |
| 1018 | if (!updated) { |
| 1019 | log.debug("Collision detected, updating IP to Device mapping retrying."); |
| 1020 | } |
| 1021 | } while( !updated ); |
| 1022 | } |
| 1023 | } |
| 1024 | |
| 1025 | void removeDevice(DeviceEvent deviceEvt) { |
| 1026 | if (deviceEvt == null) { |
| 1027 | throw new IllegalArgumentException("Device cannot be null"); |
| 1028 | } |
| 1029 | |
| 1030 | Device device = getDeviceByMac(deviceEvt.getMac()); |
| 1031 | if ( device == null ) { |
| 1032 | log.warn("Device {} already removed, ignoring", deviceEvt); |
| 1033 | return; |
| 1034 | } |
| 1035 | DeviceImpl memDevice = getDeviceImpl(device); |
| 1036 | |
| 1037 | // for each attachment point |
| 1038 | for (SwitchPort swp : deviceEvt.getAttachmentPoints() ) { |
| 1039 | // Attached Ports' Parent Switch must exist |
| 1040 | Switch sw = getSwitch(swp.dpid); |
| 1041 | if ( sw == null ) { |
Yuta HIGUCHI | 2571905 | 2014-02-13 14:42:06 -0800 | [diff] [blame] | 1042 | log.warn("Switch for the attachment point {} did not exist. skipping attachment point mutation", swp); |
Yuta HIGUCHI | 76df247 | 2014-02-12 22:36:51 -0800 | [diff] [blame] | 1043 | continue; |
| 1044 | } |
| 1045 | // Attached Ports must exist |
| 1046 | Port port = sw.getPort(swp.number); |
| 1047 | if ( port == null ) { |
Yuta HIGUCHI | 2571905 | 2014-02-13 14:42:06 -0800 | [diff] [blame] | 1048 | log.warn("Port for the attachment point {} did not exist. skipping attachment point mutation", swp); |
Yuta HIGUCHI | 76df247 | 2014-02-12 22:36:51 -0800 | [diff] [blame] | 1049 | continue; |
| 1050 | } |
| 1051 | |
| 1052 | // finally remove Device <-> Port on In-memory structure |
| 1053 | PortImpl memPort = getPortImpl(port); |
| 1054 | memPort.removeDevice(device); |
| 1055 | memDevice.removeAttachmentPoint(port); |
| 1056 | } |
| 1057 | |
| 1058 | // for each IP address |
| 1059 | for( InetAddress ipAddr : deviceEvt.getIpAddresses() ) { |
| 1060 | // Remove Device -> IP |
| 1061 | memDevice.removeIpAddress(ipAddr); |
| 1062 | |
| 1063 | // Remove IP -> Set<Device> |
| 1064 | boolean updated = false; |
| 1065 | do { |
| 1066 | Set<Device> devices = this.addr2Device.get(ipAddr); |
| 1067 | if ( devices == null ) { |
| 1068 | // already empty set, nothing to do |
| 1069 | updated = true; |
| 1070 | } else { |
| 1071 | Set<Device> updateDevices = new HashSet<>(devices); |
| 1072 | updateDevices.remove(device); |
| 1073 | updated = this.addr2Device.replace(ipAddr, devices, updateDevices); |
| 1074 | } |
| 1075 | if (!updated) { |
| 1076 | log.debug("Collision detected, updating IP to Device mapping retrying."); |
| 1077 | } |
| 1078 | } while( !updated ); |
| 1079 | } |
| 1080 | } |
| 1081 | |
Yuta HIGUCHI | a536e76 | 2014-02-17 21:47:28 -0800 | [diff] [blame] | 1082 | private void dispatchPutSwitchEvent(SwitchEvent switchEvent) { |
| 1083 | for (INetworkGraphListener listener : this.networkGraphListeners) { |
| 1084 | // TODO Should copy before handing them over to listener |
| 1085 | listener.putSwitchEvent(switchEvent); |
| 1086 | } |
| 1087 | } |
| 1088 | |
| 1089 | private void dispatchRemoveSwitchEvent(SwitchEvent switchEvent) { |
| 1090 | for (INetworkGraphListener listener : this.networkGraphListeners) { |
| 1091 | // TODO Should copy before handing them over to listener |
| 1092 | listener.removeSwitchEvent(switchEvent); |
| 1093 | } |
| 1094 | } |
| 1095 | |
| 1096 | private void dispatchPutPortEvent(PortEvent portEvent) { |
| 1097 | for (INetworkGraphListener listener : this.networkGraphListeners) { |
| 1098 | // TODO Should copy before handing them over to listener |
| 1099 | listener.putPortEvent(portEvent); |
| 1100 | } |
| 1101 | } |
| 1102 | |
| 1103 | private void dispatchRemovePortEvent(PortEvent portEvent) { |
| 1104 | for (INetworkGraphListener listener : this.networkGraphListeners) { |
| 1105 | // TODO Should copy before handing them over to listener |
| 1106 | listener.removePortEvent(portEvent); |
| 1107 | } |
| 1108 | } |
| 1109 | |
| 1110 | private void dispatchPutLinkEvent(LinkEvent linkEvent) { |
| 1111 | for (INetworkGraphListener listener : this.networkGraphListeners) { |
| 1112 | // TODO Should copy before handing them over to listener |
| 1113 | listener.putLinkEvent(linkEvent); |
| 1114 | } |
| 1115 | } |
| 1116 | |
| 1117 | private void dispatchRemoveLinkEvent(LinkEvent linkEvent) { |
| 1118 | for (INetworkGraphListener listener : this.networkGraphListeners) { |
| 1119 | // TODO Should copy before handing them over to listener |
| 1120 | listener.removeLinkEvent(linkEvent); |
| 1121 | } |
| 1122 | } |
| 1123 | |
| 1124 | private void dispatchPutDeviceEvent(DeviceEvent deviceEvent) { |
| 1125 | for (INetworkGraphListener listener : this.networkGraphListeners) { |
| 1126 | // TODO Should copy before handing them over to listener |
| 1127 | listener.putDeviceEvent(deviceEvent);; |
| 1128 | } |
| 1129 | } |
| 1130 | |
| 1131 | private void dispatchRemoveDeviceEvent(DeviceEvent deviceEvent) { |
| 1132 | for (INetworkGraphListener listener : this.networkGraphListeners) { |
| 1133 | // TODO Should copy before handing them over to listener |
| 1134 | listener.removeDeviceEvent(deviceEvent); |
| 1135 | } |
| 1136 | } |
| 1137 | |
Yuta HIGUCHI | 76df247 | 2014-02-12 22:36:51 -0800 | [diff] [blame] | 1138 | private SwitchImpl getSwitchImpl(Switch sw) { |
| 1139 | if (sw instanceof SwitchImpl) { |
| 1140 | return (SwitchImpl) sw; |
| 1141 | } |
| 1142 | throw new ClassCastException("SwitchImpl expected, but found: " + sw); |
| 1143 | } |
| 1144 | |
| 1145 | private PortImpl getPortImpl(Port p) { |
| 1146 | if (p instanceof PortImpl) { |
| 1147 | return (PortImpl) p; |
| 1148 | } |
| 1149 | throw new ClassCastException("PortImpl expected, but found: " + p); |
| 1150 | } |
| 1151 | |
| 1152 | private LinkImpl getLinkImpl(Link l) { |
| 1153 | if (l instanceof LinkImpl) { |
| 1154 | return (LinkImpl) l; |
| 1155 | } |
| 1156 | throw new ClassCastException("LinkImpl expected, but found: " + l); |
| 1157 | } |
| 1158 | |
| 1159 | private DeviceImpl getDeviceImpl(Device d) { |
| 1160 | if (d instanceof DeviceImpl) { |
| 1161 | return (DeviceImpl) d; |
| 1162 | } |
| 1163 | throw new ClassCastException("DeviceImpl expected, but found: " + d); |
| 1164 | } |
| 1165 | |
| 1166 | @Deprecated |
| 1167 | public void loadWholeTopologyFromDB() { |
Yuta HIGUCHI | 0a4bd19 | 2014-02-17 13:52:34 -0800 | [diff] [blame] | 1168 | // XXX May need to clear whole topology first, depending on |
| 1169 | // how we initially subscribe to replication events |
Yuta HIGUCHI | 76df247 | 2014-02-12 22:36:51 -0800 | [diff] [blame] | 1170 | |
| 1171 | for (RCSwitch sw : RCSwitch.getAllSwitches()) { |
| 1172 | if ( sw.getStatus() != RCSwitch.STATUS.ACTIVE ) { |
| 1173 | continue; |
| 1174 | } |
| 1175 | putSwitchReplicationEvent(new SwitchEvent(sw.getDpid())); |
| 1176 | } |
| 1177 | |
| 1178 | for (RCPort p : RCPort.getAllPorts()) { |
| 1179 | if (p.getStatus() != RCPort.STATUS.ACTIVE) { |
| 1180 | continue; |
| 1181 | } |
| 1182 | putPortReplicationEvent(new PortEvent(p.getDpid(), p.getNumber() )); |
| 1183 | } |
| 1184 | |
| 1185 | // TODO Is Device going to be in DB? If so, read from DB. |
| 1186 | // for (RCDevice d : RCDevice.getAllDevices()) { |
| 1187 | // DeviceEvent devEvent = new DeviceEvent( MACAddress.valueOf(d.getMac()) ); |
| 1188 | // for (byte[] portId : d.getAllPortIds() ) { |
| 1189 | // devEvent.addAttachmentPoint( new SwitchPort( RCPort.getDpidFromKey(portId), RCPort.getNumberFromKey(portId) )); |
| 1190 | // } |
| 1191 | // } |
| 1192 | |
| 1193 | for (RCLink l : RCLink.getAllLinks()) { |
Yuta HIGUCHI | dab9469 | 2014-02-18 09:12:02 -0800 | [diff] [blame] | 1194 | // check if src/dst switch/port exist before triggering event |
| 1195 | // Src/Dst Switch must exist |
| 1196 | Switch srcSw = getSwitch(l.getSrc().dpid); |
| 1197 | Switch dstSw = getSwitch(l.getDst().dpid); |
| 1198 | if ( srcSw == null || dstSw == null ) { |
| 1199 | continue; |
| 1200 | } |
| 1201 | // Src/Dst Port must exist |
| 1202 | Port srcPort = srcSw.getPort(l.getSrc().number); |
| 1203 | Port dstPort = dstSw.getPort(l.getDst().number); |
| 1204 | if ( srcPort == null || dstPort == null ) { |
| 1205 | continue; |
| 1206 | } |
Yuta HIGUCHI | 76df247 | 2014-02-12 22:36:51 -0800 | [diff] [blame] | 1207 | putLinkReplicationEvent( new LinkEvent(l.getSrc().dpid, l.getSrc().number, l.getDst().dpid, l.getDst().number)); |
| 1208 | } |
| 1209 | } |
Jonathan Hart | 062a2e8 | 2014-02-03 09:41:57 -0800 | [diff] [blame] | 1210 | } |