Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 1 | package net.onrc.onos.ofcontroller.flowmanager; |
| 2 | |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 3 | import java.util.ArrayList; |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 4 | import java.util.Collection; |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 5 | import java.util.HashMap; |
| 6 | import java.util.Iterator; |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 7 | import java.util.LinkedList; |
| 8 | import java.util.List; |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 9 | import java.util.Map; |
Pavlin Radoslavov | 5321980 | 2013-12-06 11:02:04 -0800 | [diff] [blame] | 10 | import java.util.SortedMap; |
| 11 | import java.util.TreeMap; |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 12 | import java.util.concurrent.BlockingQueue; |
| 13 | import java.util.concurrent.LinkedBlockingQueue; |
| 14 | |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 15 | import net.floodlightcontroller.core.IOFSwitch; |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 16 | import net.onrc.onos.datagrid.IDatagridService; |
Naoki Shiota | 0abe38d | 2014-01-07 15:31:22 -0800 | [diff] [blame] | 17 | import net.onrc.onos.graph.GraphDBOperation; |
Pavlin Radoslavov | a23e541 | 2013-10-27 19:56:40 -0700 | [diff] [blame] | 18 | import net.onrc.onos.ofcontroller.topology.Topology; |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 19 | import net.onrc.onos.ofcontroller.topology.TopologyElement; |
Pavlin Radoslavov | 3ecd41e | 2013-10-29 14:29:30 -0700 | [diff] [blame] | 20 | import net.onrc.onos.ofcontroller.topology.TopologyManager; |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 21 | import net.onrc.onos.ofcontroller.util.DataPath; |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 22 | import net.onrc.onos.ofcontroller.util.EventEntry; |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 23 | import net.onrc.onos.ofcontroller.util.FlowEntry; |
| 24 | import net.onrc.onos.ofcontroller.util.FlowEntryAction; |
| 25 | import net.onrc.onos.ofcontroller.util.FlowEntryActions; |
Pavlin Radoslavov | 1c24f22 | 2013-10-30 13:56:46 -0700 | [diff] [blame] | 26 | import net.onrc.onos.ofcontroller.util.FlowEntryId; |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 27 | import net.onrc.onos.ofcontroller.util.FlowEntryMatch; |
| 28 | import net.onrc.onos.ofcontroller.util.FlowEntrySwitchState; |
| 29 | import net.onrc.onos.ofcontroller.util.FlowEntryUserState; |
Pavlin Radoslavov | 1c24f22 | 2013-10-30 13:56:46 -0700 | [diff] [blame] | 30 | import net.onrc.onos.ofcontroller.util.FlowId; |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 31 | import net.onrc.onos.ofcontroller.util.FlowPath; |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 32 | import net.onrc.onos.ofcontroller.util.FlowPathUserState; |
Pavlin Radoslavov | 5321980 | 2013-12-06 11:02:04 -0800 | [diff] [blame] | 33 | import net.onrc.onos.ofcontroller.util.serializers.KryoFactory; |
| 34 | |
| 35 | import com.esotericsoftware.kryo2.Kryo; |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 36 | |
| 37 | import org.slf4j.Logger; |
| 38 | import org.slf4j.LoggerFactory; |
| 39 | |
| 40 | /** |
Yuta HIGUCHI | e1038fb | 2013-10-30 15:35:18 -0700 | [diff] [blame] | 41 | * Class for FlowPath Maintenance. |
| 42 | * This class listens for FlowEvents to: |
| 43 | * - Maintain a local cache of the Network Topology. |
| 44 | * - Detect FlowPaths impacted by Topology change. |
| 45 | * - Recompute impacted FlowPath using cached Topology. |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 46 | */ |
Pavlin Radoslavov | 9a85902 | 2013-10-30 10:08:24 -0700 | [diff] [blame] | 47 | class FlowEventHandler extends Thread implements IFlowEventHandlerService { |
Pavlin Radoslavov | 8252fee | 2014-01-07 17:24:29 -0800 | [diff] [blame] | 48 | |
Pavlin Radoslavov | db1f91c | 2014-01-08 16:04:17 -0800 | [diff] [blame^] | 49 | private boolean enableOnrc2014MeasurementsFlows = true; |
| 50 | private boolean enableOnrc2014MeasurementsTopology = true; |
Pavlin Radoslavov | 8252fee | 2014-01-07 17:24:29 -0800 | [diff] [blame] | 51 | |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 52 | /** The logger. */ |
Pavlin Radoslavov | 9a85902 | 2013-10-30 10:08:24 -0700 | [diff] [blame] | 53 | private final static Logger log = LoggerFactory.getLogger(FlowEventHandler.class); |
Naoki Shiota | 0abe38d | 2014-01-07 15:31:22 -0800 | [diff] [blame] | 54 | |
Naoki Shiota | 0abe38d | 2014-01-07 15:31:22 -0800 | [diff] [blame] | 55 | private GraphDBOperation dbHandler; |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 56 | private FlowManager flowManager; // The Flow Manager to use |
| 57 | private IDatagridService datagridService; // The Datagrid Service to use |
Pavlin Radoslavov | a23e541 | 2013-10-27 19:56:40 -0700 | [diff] [blame] | 58 | private Topology topology; // The network topology |
Pavlin Radoslavov | 5321980 | 2013-12-06 11:02:04 -0800 | [diff] [blame] | 59 | private KryoFactory kryoFactory = new KryoFactory(); |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 60 | |
| 61 | // The queue with Flow Path and Topology Element updates |
| 62 | private BlockingQueue<EventEntry<?>> networkEvents = |
| 63 | new LinkedBlockingQueue<EventEntry<?>>(); |
| 64 | |
Pavlin Radoslavov | b750684 | 2013-10-29 17:46:54 -0700 | [diff] [blame] | 65 | // The pending Topology, FlowPath, and FlowEntry events |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 66 | private List<EventEntry<TopologyElement>> topologyEvents = |
| 67 | new LinkedList<EventEntry<TopologyElement>>(); |
| 68 | private List<EventEntry<FlowPath>> flowPathEvents = |
| 69 | new LinkedList<EventEntry<FlowPath>>(); |
Pavlin Radoslavov | b750684 | 2013-10-29 17:46:54 -0700 | [diff] [blame] | 70 | private List<EventEntry<FlowEntry>> flowEntryEvents = |
| 71 | new LinkedList<EventEntry<FlowEntry>>(); |
Pavlin Radoslavov | 2004fa0 | 2014-01-07 14:46:42 -0800 | [diff] [blame] | 72 | private List<EventEntry<FlowId>> flowIdEvents = |
| 73 | new LinkedList<EventEntry<FlowId>>(); |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 74 | |
Pavlin Radoslavov | 2fca8d1 | 2013-12-04 09:39:06 -0800 | [diff] [blame] | 75 | // All internally computed Flow Paths |
| 76 | private Map<Long, FlowPath> allFlowPaths = new HashMap<Long, FlowPath>(); |
| 77 | |
| 78 | // The Flow Entries received as notifications with unmatched Flow Paths |
| 79 | private Map<Long, FlowEntry> unmatchedFlowEntryAdd = |
| 80 | new HashMap<Long, FlowEntry>(); |
| 81 | |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 82 | // |
| 83 | // Transient state for processing the Flow Paths: |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 84 | // - The Flow Paths that should be recomputed |
| 85 | // - The Flow Paths with modified Flow Entries |
Pavlin Radoslavov | 7208e9a | 2013-12-11 14:31:07 -0800 | [diff] [blame] | 86 | // - The Flow Paths that we should check if installed in all switches |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 87 | // |
Pavlin Radoslavov | 2fca8d1 | 2013-12-04 09:39:06 -0800 | [diff] [blame] | 88 | private Map<Long, FlowPath> shouldRecomputeFlowPaths = |
| 89 | new HashMap<Long, FlowPath>(); |
| 90 | private Map<Long, FlowPath> modifiedFlowPaths = |
| 91 | new HashMap<Long, FlowPath>(); |
Pavlin Radoslavov | 7208e9a | 2013-12-11 14:31:07 -0800 | [diff] [blame] | 92 | private Map<Long, FlowPath> checkIfInstalledFlowPaths = |
| 93 | new HashMap<Long, FlowPath>(); |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 94 | |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 95 | /** |
| 96 | * Constructor for a given Flow Manager and Datagrid Service. |
| 97 | * |
| 98 | * @param flowManager the Flow Manager to use. |
| 99 | * @param datagridService the Datagrid Service to use. |
| 100 | */ |
Pavlin Radoslavov | 9a85902 | 2013-10-30 10:08:24 -0700 | [diff] [blame] | 101 | FlowEventHandler(FlowManager flowManager, |
Pavlin Radoslavov | 8252fee | 2014-01-07 17:24:29 -0800 | [diff] [blame] | 102 | IDatagridService datagridService) { |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 103 | this.flowManager = flowManager; |
| 104 | this.datagridService = datagridService; |
Pavlin Radoslavov | a23e541 | 2013-10-27 19:56:40 -0700 | [diff] [blame] | 105 | this.topology = new Topology(); |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 106 | } |
| 107 | |
| 108 | /** |
Pavlin Radoslavov | ed0f4a8 | 2013-11-04 16:38:36 -0800 | [diff] [blame] | 109 | * Get the network topology. |
| 110 | * |
| 111 | * @return the network topology. |
| 112 | */ |
| 113 | protected Topology getTopology() { return this.topology; } |
| 114 | |
| 115 | /** |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 116 | * Startup processing. |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 117 | */ |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 118 | private void startup() { |
Pavlin Radoslavov | 8252fee | 2014-01-07 17:24:29 -0800 | [diff] [blame] | 119 | this.dbHandler = new GraphDBOperation(""); |
| 120 | |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 121 | // |
| 122 | // Obtain the initial Topology state |
| 123 | // |
| 124 | Collection<TopologyElement> topologyElements = |
| 125 | datagridService.getAllTopologyElements(); |
| 126 | for (TopologyElement topologyElement : topologyElements) { |
| 127 | EventEntry<TopologyElement> eventEntry = |
| 128 | new EventEntry<TopologyElement>(EventEntry.Type.ENTRY_ADD, topologyElement); |
| 129 | topologyEvents.add(eventEntry); |
| 130 | } |
| 131 | // |
| 132 | // Obtain the initial Flow Path state |
| 133 | // |
| 134 | Collection<FlowPath> flowPaths = datagridService.getAllFlows(); |
| 135 | for (FlowPath flowPath : flowPaths) { |
| 136 | EventEntry<FlowPath> eventEntry = |
| 137 | new EventEntry<FlowPath>(EventEntry.Type.ENTRY_ADD, flowPath); |
| 138 | flowPathEvents.add(eventEntry); |
| 139 | } |
Pavlin Radoslavov | b750684 | 2013-10-29 17:46:54 -0700 | [diff] [blame] | 140 | // |
| 141 | // Obtain the initial FlowEntry state |
| 142 | // |
| 143 | Collection<FlowEntry> flowEntries = datagridService.getAllFlowEntries(); |
| 144 | for (FlowEntry flowEntry : flowEntries) { |
| 145 | EventEntry<FlowEntry> eventEntry = |
| 146 | new EventEntry<FlowEntry>(EventEntry.Type.ENTRY_ADD, flowEntry); |
| 147 | flowEntryEvents.add(eventEntry); |
| 148 | } |
| 149 | |
Pavlin Radoslavov | 2004fa0 | 2014-01-07 14:46:42 -0800 | [diff] [blame] | 150 | // |
| 151 | // Obtain the initial FlowId state |
| 152 | // |
| 153 | Collection<FlowId> flowIds = datagridService.getAllFlowIds(); |
| 154 | for (FlowId flowId : flowIds) { |
| 155 | EventEntry<FlowId> eventEntry = |
| 156 | new EventEntry<FlowId>(EventEntry.Type.ENTRY_ADD, flowId); |
| 157 | flowIdEvents.add(eventEntry); |
| 158 | } |
| 159 | |
Pavlin Radoslavov | fb94edc | 2013-11-04 16:29:40 -0800 | [diff] [blame] | 160 | // Process the initial events (if any) |
Pavlin Radoslavov | 5321980 | 2013-12-06 11:02:04 -0800 | [diff] [blame] | 161 | synchronized (allFlowPaths) { |
| 162 | processEvents(); |
| 163 | } |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 164 | } |
| 165 | |
| 166 | /** |
| 167 | * Run the thread. |
| 168 | */ |
Pavlin Radoslavov | 4839f6d | 2013-12-11 12:49:45 -0800 | [diff] [blame] | 169 | @Override |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 170 | public void run() { |
Yuta HIGUCHI | 61509a4 | 2013-12-17 10:41:04 -0800 | [diff] [blame] | 171 | this.setName("FlowEventHandler " + this.getId()); |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 172 | startup(); |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 173 | |
| 174 | // |
| 175 | // The main loop |
| 176 | // |
| 177 | Collection<EventEntry<?>> collection = new LinkedList<EventEntry<?>>(); |
| 178 | try { |
| 179 | while (true) { |
| 180 | EventEntry<?> eventEntry = networkEvents.take(); |
| 181 | collection.add(eventEntry); |
| 182 | networkEvents.drainTo(collection); |
| 183 | |
Pavlin Radoslavov | ed4c7a9 | 2013-10-26 21:36:21 -0700 | [diff] [blame] | 184 | // |
| 185 | // Demultiplex all events: |
| 186 | // - EventEntry<TopologyElement> |
| 187 | // - EventEntry<FlowPath> |
Pavlin Radoslavov | b750684 | 2013-10-29 17:46:54 -0700 | [diff] [blame] | 188 | // - EventEntry<FlowEntry> |
Pavlin Radoslavov | 2004fa0 | 2014-01-07 14:46:42 -0800 | [diff] [blame] | 189 | // - EventEntry<FlowId> |
Pavlin Radoslavov | ed4c7a9 | 2013-10-26 21:36:21 -0700 | [diff] [blame] | 190 | // |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 191 | for (EventEntry<?> event : collection) { |
Pavlin Radoslavov | c8038a8 | 2013-12-02 17:43:20 -0800 | [diff] [blame] | 192 | // Topology event |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 193 | if (event.eventData() instanceof TopologyElement) { |
| 194 | EventEntry<TopologyElement> topologyEventEntry = |
| 195 | (EventEntry<TopologyElement>)event; |
Naoki Shiota | 0abe38d | 2014-01-07 15:31:22 -0800 | [diff] [blame] | 196 | |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 197 | topologyEvents.add(topologyEventEntry); |
Pavlin Radoslavov | c8038a8 | 2013-12-02 17:43:20 -0800 | [diff] [blame] | 198 | continue; |
| 199 | } |
| 200 | |
| 201 | // FlowPath event |
| 202 | if (event.eventData() instanceof FlowPath) { |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 203 | EventEntry<FlowPath> flowPathEventEntry = |
| 204 | (EventEntry<FlowPath>)event; |
| 205 | flowPathEvents.add(flowPathEventEntry); |
Pavlin Radoslavov | c8038a8 | 2013-12-02 17:43:20 -0800 | [diff] [blame] | 206 | continue; |
| 207 | } |
| 208 | |
| 209 | // FlowEntry event |
| 210 | if (event.eventData() instanceof FlowEntry) { |
Pavlin Radoslavov | b750684 | 2013-10-29 17:46:54 -0700 | [diff] [blame] | 211 | EventEntry<FlowEntry> flowEntryEventEntry = |
| 212 | (EventEntry<FlowEntry>)event; |
| 213 | flowEntryEvents.add(flowEntryEventEntry); |
Pavlin Radoslavov | c8038a8 | 2013-12-02 17:43:20 -0800 | [diff] [blame] | 214 | continue; |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 215 | } |
Pavlin Radoslavov | 2004fa0 | 2014-01-07 14:46:42 -0800 | [diff] [blame] | 216 | |
| 217 | // FlowId event |
| 218 | if (event.eventData() instanceof FlowId) { |
| 219 | EventEntry<FlowId> flowIdEventEntry = |
| 220 | (EventEntry<FlowId>)event; |
| 221 | flowIdEvents.add(flowIdEventEntry); |
| 222 | continue; |
| 223 | } |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 224 | } |
| 225 | collection.clear(); |
Pavlin Radoslavov | ed4c7a9 | 2013-10-26 21:36:21 -0700 | [diff] [blame] | 226 | |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 227 | // Process the events (if any) |
Pavlin Radoslavov | 5321980 | 2013-12-06 11:02:04 -0800 | [diff] [blame] | 228 | synchronized (allFlowPaths) { |
| 229 | processEvents(); |
| 230 | } |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 231 | } |
| 232 | } catch (Exception exception) { |
| 233 | log.debug("Exception processing Network Events: ", exception); |
| 234 | } |
| 235 | } |
Naoki Shiota | 0abe38d | 2014-01-07 15:31:22 -0800 | [diff] [blame] | 236 | |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 237 | /** |
| 238 | * Process the events (if any) |
| 239 | */ |
| 240 | private void processEvents() { |
Pavlin Radoslavov | afc4aa9 | 2013-12-04 12:44:23 -0800 | [diff] [blame] | 241 | Collection<FlowEntry> modifiedFlowEntries; |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 242 | |
Pavlin Radoslavov | 80bc3cf | 2014-01-08 11:17:30 -0800 | [diff] [blame] | 243 | if (enableOnrc2014MeasurementsFlows) { |
| 244 | |
| 245 | if (topologyEvents.isEmpty() && flowIdEvents.isEmpty()) { |
| 246 | return; // Nothing to do |
| 247 | } |
| 248 | |
| 249 | Map<Long, IOFSwitch> mySwitches = flowManager.getMySwitches(); |
| 250 | |
| 251 | // Fetch and prepare my flows |
| 252 | prepareMyFlows(mySwitches); |
| 253 | |
| 254 | // Fetch the topology |
| 255 | processTopologyEvents(); |
| 256 | |
| 257 | // Recompute all affected Flow Paths and keep only the modified |
| 258 | for (FlowPath flowPath : shouldRecomputeFlowPaths.values()) { |
| 259 | if (recomputeFlowPath(flowPath)) |
| 260 | modifiedFlowPaths.put(flowPath.flowId().value(), flowPath); |
| 261 | } |
| 262 | |
| 263 | // Assign the Flow Entry ID as needed |
| 264 | for (FlowPath flowPath : modifiedFlowPaths.values()) { |
| 265 | for (FlowEntry flowEntry : flowPath.flowEntries()) { |
| 266 | if (! flowEntry.isValidFlowEntryId()) { |
| 267 | long id = flowManager.getNextFlowEntryId(); |
| 268 | flowEntry.setFlowEntryId(new FlowEntryId(id)); |
| 269 | } |
| 270 | } |
| 271 | } |
| 272 | |
| 273 | // Extract my modified Flow Entries |
| 274 | modifiedFlowEntries = processFlowIdEvents(mySwitches); |
| 275 | |
| 276 | // |
| 277 | // Push the modified state to the Flow Manager |
| 278 | // |
| 279 | flowManager.pushModifiedFlowState(modifiedFlowPaths.values(), |
| 280 | modifiedFlowEntries); |
| 281 | |
| 282 | // Cleanup |
| 283 | topologyEvents.clear(); |
| 284 | flowIdEvents.clear(); |
| 285 | // |
| 286 | allFlowPaths.clear(); |
| 287 | shouldRecomputeFlowPaths.clear(); |
| 288 | modifiedFlowPaths.clear(); |
| 289 | |
| 290 | return; |
| 291 | } |
| 292 | |
Pavlin Radoslavov | b750684 | 2013-10-29 17:46:54 -0700 | [diff] [blame] | 293 | if (topologyEvents.isEmpty() && flowPathEvents.isEmpty() && |
Pavlin Radoslavov | 80bc3cf | 2014-01-08 11:17:30 -0800 | [diff] [blame] | 294 | flowEntryEvents.isEmpty()) { |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 295 | return; // Nothing to do |
Pavlin Radoslavov | b750684 | 2013-10-29 17:46:54 -0700 | [diff] [blame] | 296 | } |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 297 | |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 298 | processFlowPathEvents(); |
| 299 | processTopologyEvents(); |
Pavlin Radoslavov | 9bb4055 | 2013-12-18 21:08:30 -0800 | [diff] [blame] | 300 | processUnmatchedFlowEntryAdd(); |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 301 | processFlowEntryEvents(); |
| 302 | |
| 303 | // Recompute all affected Flow Paths and keep only the modified |
Pavlin Radoslavov | 2fca8d1 | 2013-12-04 09:39:06 -0800 | [diff] [blame] | 304 | for (FlowPath flowPath : shouldRecomputeFlowPaths.values()) { |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 305 | if (recomputeFlowPath(flowPath)) |
Pavlin Radoslavov | 2fca8d1 | 2013-12-04 09:39:06 -0800 | [diff] [blame] | 306 | modifiedFlowPaths.put(flowPath.flowId().value(), flowPath); |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 307 | } |
| 308 | |
Pavlin Radoslavov | 2fca8d1 | 2013-12-04 09:39:06 -0800 | [diff] [blame] | 309 | // Extract the modified Flow Entries |
Pavlin Radoslavov | afc4aa9 | 2013-12-04 12:44:23 -0800 | [diff] [blame] | 310 | modifiedFlowEntries = extractModifiedFlowEntries(modifiedFlowPaths.values()); |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 311 | |
| 312 | // Assign missing Flow Entry IDs |
| 313 | assignFlowEntryId(modifiedFlowEntries); |
| 314 | |
| 315 | // |
Pavlin Radoslavov | a0c1636 | 2013-12-04 13:18:08 -0800 | [diff] [blame] | 316 | // Push the modified state to the Flow Manager |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 317 | // |
Pavlin Radoslavov | a0c1636 | 2013-12-04 13:18:08 -0800 | [diff] [blame] | 318 | flowManager.pushModifiedFlowState(modifiedFlowPaths.values(), |
| 319 | modifiedFlowEntries); |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 320 | |
| 321 | // |
| 322 | // Remove Flow Entries that were deleted |
| 323 | // |
Pavlin Radoslavov | 2fca8d1 | 2013-12-04 09:39:06 -0800 | [diff] [blame] | 324 | for (FlowPath flowPath : modifiedFlowPaths.values()) |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 325 | flowPath.dataPath().removeDeletedFlowEntries(); |
| 326 | |
Pavlin Radoslavov | 7208e9a | 2013-12-11 14:31:07 -0800 | [diff] [blame] | 327 | // |
| 328 | // Check if Flow Paths have been installed into all switches, |
| 329 | // and generate the appropriate events. |
| 330 | // |
| 331 | checkInstalledFlowPaths(checkIfInstalledFlowPaths.values()); |
| 332 | |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 333 | // Cleanup |
| 334 | topologyEvents.clear(); |
| 335 | flowPathEvents.clear(); |
| 336 | flowEntryEvents.clear(); |
| 337 | // |
Pavlin Radoslavov | 2fca8d1 | 2013-12-04 09:39:06 -0800 | [diff] [blame] | 338 | shouldRecomputeFlowPaths.clear(); |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 339 | modifiedFlowPaths.clear(); |
Pavlin Radoslavov | 7208e9a | 2013-12-11 14:31:07 -0800 | [diff] [blame] | 340 | checkIfInstalledFlowPaths.clear(); |
| 341 | } |
| 342 | |
| 343 | /** |
| 344 | * Check if Flow Paths have been installed into all switches, |
| 345 | * and generate the appropriate events. |
| 346 | * |
| 347 | * @param flowPaths the flowPaths to process. |
| 348 | */ |
| 349 | private void checkInstalledFlowPaths(Collection<FlowPath> flowPaths) { |
| 350 | List<FlowPath> installedFlowPaths = new LinkedList<FlowPath>(); |
| 351 | |
| 352 | Kryo kryo = kryoFactory.newKryo(); |
| 353 | |
| 354 | for (FlowPath flowPath : flowPaths) { |
| 355 | boolean isInstalled = true; |
| 356 | |
| 357 | // |
| 358 | // Check whether all Flow Entries have been installed |
| 359 | // |
| 360 | for (FlowEntry flowEntry : flowPath.flowEntries()) { |
| 361 | if (flowEntry.flowEntrySwitchState() != |
| 362 | FlowEntrySwitchState.FE_SWITCH_UPDATED) { |
| 363 | isInstalled = false; |
| 364 | break; |
| 365 | } |
| 366 | } |
| 367 | |
| 368 | if (isInstalled) { |
| 369 | // Create a copy and add it to the list |
| 370 | FlowPath copyFlowPath = kryo.copy(flowPath); |
| 371 | installedFlowPaths.add(copyFlowPath); |
| 372 | } |
| 373 | } |
| 374 | kryoFactory.deleteKryo(kryo); |
| 375 | |
| 376 | // Generate an event for the installed Flow Path. |
| 377 | flowManager.notificationFlowPathsInstalled(installedFlowPaths); |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 378 | } |
| 379 | |
| 380 | /** |
| 381 | * Extract the modified Flow Entries. |
Pavlin Radoslavov | afc4aa9 | 2013-12-04 12:44:23 -0800 | [diff] [blame] | 382 | * |
| 383 | * @param modifiedFlowPaths the Flow Paths to process. |
| 384 | * @return a collection with the modified Flow Entries. |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 385 | */ |
Pavlin Radoslavov | afc4aa9 | 2013-12-04 12:44:23 -0800 | [diff] [blame] | 386 | private Collection<FlowEntry> extractModifiedFlowEntries( |
| 387 | Collection<FlowPath> modifiedFlowPaths) { |
| 388 | List<FlowEntry> modifiedFlowEntries = new LinkedList<FlowEntry>(); |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 389 | |
| 390 | // Extract only the modified Flow Entries |
Pavlin Radoslavov | afc4aa9 | 2013-12-04 12:44:23 -0800 | [diff] [blame] | 391 | for (FlowPath flowPath : modifiedFlowPaths) { |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 392 | for (FlowEntry flowEntry : flowPath.flowEntries()) { |
| 393 | if (flowEntry.flowEntrySwitchState() == |
| 394 | FlowEntrySwitchState.FE_SWITCH_NOT_UPDATED) { |
Pavlin Radoslavov | afc4aa9 | 2013-12-04 12:44:23 -0800 | [diff] [blame] | 395 | modifiedFlowEntries.add(flowEntry); |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 396 | } |
| 397 | } |
| 398 | } |
| 399 | return modifiedFlowEntries; |
| 400 | } |
| 401 | |
| 402 | /** |
| 403 | * Assign the Flow Entry ID as needed. |
Pavlin Radoslavov | afc4aa9 | 2013-12-04 12:44:23 -0800 | [diff] [blame] | 404 | * |
| 405 | * @param modifiedFlowEnries the collection of Flow Entries that need |
| 406 | * Flow Entry ID assigned. |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 407 | */ |
Pavlin Radoslavov | afc4aa9 | 2013-12-04 12:44:23 -0800 | [diff] [blame] | 408 | private void assignFlowEntryId(Collection<FlowEntry> modifiedFlowEntries) { |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 409 | if (modifiedFlowEntries.isEmpty()) |
| 410 | return; |
| 411 | |
| 412 | Map<Long, IOFSwitch> mySwitches = flowManager.getMySwitches(); |
| 413 | |
| 414 | // |
| 415 | // Assign the Flow Entry ID only for Flow Entries for my switches |
| 416 | // |
Pavlin Radoslavov | afc4aa9 | 2013-12-04 12:44:23 -0800 | [diff] [blame] | 417 | for (FlowEntry flowEntry : modifiedFlowEntries) { |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 418 | IOFSwitch mySwitch = mySwitches.get(flowEntry.dpid().value()); |
| 419 | if (mySwitch == null) |
| 420 | continue; |
| 421 | if (! flowEntry.isValidFlowEntryId()) { |
| 422 | long id = flowManager.getNextFlowEntryId(); |
| 423 | flowEntry.setFlowEntryId(new FlowEntryId(id)); |
| 424 | } |
| 425 | } |
| 426 | } |
| 427 | |
| 428 | /** |
Pavlin Radoslavov | 80bc3cf | 2014-01-08 11:17:30 -0800 | [diff] [blame] | 429 | * Prepare my flows. |
| 430 | * |
| 431 | * @param mySwitches the collection of my switches. |
Pavlin Radoslavov | 2004fa0 | 2014-01-07 14:46:42 -0800 | [diff] [blame] | 432 | */ |
Pavlin Radoslavov | 80bc3cf | 2014-01-08 11:17:30 -0800 | [diff] [blame] | 433 | private void prepareMyFlows(Map<Long, IOFSwitch> mySwitches) { |
Pavlin Radoslavov | db1f91c | 2014-01-08 16:04:17 -0800 | [diff] [blame^] | 434 | // Fetch my flows from the database |
Pavlin Radoslavov | 80bc3cf | 2014-01-08 11:17:30 -0800 | [diff] [blame] | 435 | ArrayList<FlowPath> myFlows = flowManager.getAllMyFlows(mySwitches); |
| 436 | for (FlowPath flowPath : myFlows) { |
| 437 | allFlowPaths.put(flowPath.flowId().value(), flowPath); |
| 438 | } |
Pavlin Radoslavov | db1f91c | 2014-01-08 16:04:17 -0800 | [diff] [blame^] | 439 | |
| 440 | // |
| 441 | // Automatically add all Flow ID events (for the Flows this instance |
| 442 | // is responsible for) to the collection of Flows to recompute. |
| 443 | // |
| 444 | for (EventEntry<FlowId> eventEntry : flowIdEvents) { |
| 445 | FlowId flowId = eventEntry.eventData(); |
| 446 | FlowPath flowPath = allFlowPaths.get(flowId.value()); |
| 447 | if (flowPath != null) { |
| 448 | shouldRecomputeFlowPaths.put(flowPath.flowId().value(), |
| 449 | flowPath); |
| 450 | } |
| 451 | } |
Pavlin Radoslavov | 80bc3cf | 2014-01-08 11:17:30 -0800 | [diff] [blame] | 452 | } |
| 453 | |
| 454 | /** |
| 455 | * Process the Flow ID events. |
| 456 | * |
| 457 | * @param mySwitches the collection of my switches. |
| 458 | * @return a collection of modified Flow Entries this instance needs |
| 459 | * to push to its own switches. |
| 460 | */ |
| 461 | private Collection<FlowEntry> processFlowIdEvents(Map<Long, IOFSwitch> mySwitches) { |
| 462 | List<FlowEntry> modifiedFlowEntries = new LinkedList<FlowEntry>(); |
| 463 | |
Pavlin Radoslavov | 2004fa0 | 2014-01-07 14:46:42 -0800 | [diff] [blame] | 464 | // |
| 465 | // Process all Flow ID events and update the appropriate state |
| 466 | // |
| 467 | for (EventEntry<FlowId> eventEntry : flowIdEvents) { |
| 468 | FlowId flowId = eventEntry.eventData(); |
| 469 | |
| 470 | log.debug("Flow ID Event: {} {}", eventEntry.eventType(), flowId); |
| 471 | |
Pavlin Radoslavov | 80bc3cf | 2014-01-08 11:17:30 -0800 | [diff] [blame] | 472 | // |
| 473 | // Lookup the Flow ID in the Flows that were read from the |
| 474 | // database in in a previous step. If not found, read from |
| 475 | // the database. |
| 476 | // |
| 477 | FlowPath flowPath = allFlowPaths.get(flowId.value()); |
| 478 | if (flowPath == null) |
| 479 | flowPath = flowManager.getFlow(flowId); |
| 480 | if (flowPath == null) { |
| 481 | log.debug("Flow ID {} : Flow not found!", flowId); |
| 482 | continue; |
Pavlin Radoslavov | 2004fa0 | 2014-01-07 14:46:42 -0800 | [diff] [blame] | 483 | } |
| 484 | |
Pavlin Radoslavov | 80bc3cf | 2014-01-08 11:17:30 -0800 | [diff] [blame] | 485 | // Collect only my flow entries that are not updated. |
| 486 | for (FlowEntry flowEntry : flowPath.flowEntries()) { |
| 487 | if (flowEntry.flowEntrySwitchState() != |
| 488 | FlowEntrySwitchState.FE_SWITCH_NOT_UPDATED) { |
| 489 | continue; |
| 490 | } |
| 491 | IOFSwitch mySwitch = mySwitches.get(flowEntry.dpid().value()); |
| 492 | if (mySwitch == null) |
| 493 | continue; |
| 494 | modifiedFlowEntries.add(flowEntry); |
Pavlin Radoslavov | 2004fa0 | 2014-01-07 14:46:42 -0800 | [diff] [blame] | 495 | } |
| 496 | } |
Pavlin Radoslavov | 2004fa0 | 2014-01-07 14:46:42 -0800 | [diff] [blame] | 497 | |
Pavlin Radoslavov | 80bc3cf | 2014-01-08 11:17:30 -0800 | [diff] [blame] | 498 | return modifiedFlowEntries; |
| 499 | } |
Pavlin Radoslavov | 2004fa0 | 2014-01-07 14:46:42 -0800 | [diff] [blame] | 500 | |
| 501 | /** |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 502 | * Process the Flow Path events. |
| 503 | */ |
| 504 | private void processFlowPathEvents() { |
| 505 | // |
| 506 | // Process all Flow Path events and update the appropriate state |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 507 | // |
| 508 | for (EventEntry<FlowPath> eventEntry : flowPathEvents) { |
| 509 | FlowPath flowPath = eventEntry.eventData(); |
| 510 | |
Yuta HIGUCHI | 5302ddf | 2014-01-06 12:53:35 -0800 | [diff] [blame] | 511 | log.debug("Flow Event: {} {}", eventEntry.eventType(), flowPath); |
Pavlin Radoslavov | fb94edc | 2013-11-04 16:29:40 -0800 | [diff] [blame] | 512 | |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 513 | switch (eventEntry.eventType()) { |
| 514 | case ENTRY_ADD: { |
| 515 | // |
| 516 | // Add a new Flow Path |
| 517 | // |
| 518 | if (allFlowPaths.get(flowPath.flowId().value()) != null) { |
| 519 | // |
| 520 | // TODO: What to do if the Flow Path already exists? |
Pavlin Radoslavov | 2fca8d1 | 2013-12-04 09:39:06 -0800 | [diff] [blame] | 521 | // Fow now, we just re-add it. |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 522 | // |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 523 | } |
| 524 | |
| 525 | switch (flowPath.flowPathType()) { |
| 526 | case FP_TYPE_SHORTEST_PATH: |
| 527 | // |
| 528 | // Reset the Data Path, in case it was set already, because |
| 529 | // we are going to recompute it anyway. |
| 530 | // |
| 531 | flowPath.flowEntries().clear(); |
Pavlin Radoslavov | 2fca8d1 | 2013-12-04 09:39:06 -0800 | [diff] [blame] | 532 | shouldRecomputeFlowPaths.put(flowPath.flowId().value(), |
| 533 | flowPath); |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 534 | break; |
| 535 | case FP_TYPE_EXPLICIT_PATH: |
| 536 | // |
| 537 | // Mark all Flow Entries for installation in the switches. |
| 538 | // |
| 539 | for (FlowEntry flowEntry : flowPath.flowEntries()) { |
| 540 | flowEntry.setFlowEntrySwitchState(FlowEntrySwitchState.FE_SWITCH_NOT_UPDATED); |
| 541 | } |
Pavlin Radoslavov | 2fca8d1 | 2013-12-04 09:39:06 -0800 | [diff] [blame] | 542 | modifiedFlowPaths.put(flowPath.flowId().value(), flowPath); |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 543 | break; |
Pavlin Radoslavov | 4839f6d | 2013-12-11 12:49:45 -0800 | [diff] [blame] | 544 | case FP_TYPE_UNKNOWN: |
| 545 | log.error("FlowPath event with unknown type"); |
| 546 | break; |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 547 | } |
Pavlin Radoslavov | 2fca8d1 | 2013-12-04 09:39:06 -0800 | [diff] [blame] | 548 | allFlowPaths.put(flowPath.flowId().value(), flowPath); |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 549 | |
| 550 | break; |
| 551 | } |
| 552 | |
| 553 | case ENTRY_REMOVE: { |
| 554 | // |
| 555 | // Remove an existing Flow Path. |
| 556 | // |
| 557 | // Find the Flow Path, and mark the Flow and its Flow Entries |
| 558 | // for deletion. |
| 559 | // |
| 560 | FlowPath existingFlowPath = |
| 561 | allFlowPaths.get(flowPath.flowId().value()); |
| 562 | if (existingFlowPath == null) |
| 563 | continue; // Nothing to do |
| 564 | |
| 565 | existingFlowPath.setFlowPathUserState(FlowPathUserState.FP_USER_DELETE); |
| 566 | for (FlowEntry flowEntry : existingFlowPath.flowEntries()) { |
| 567 | flowEntry.setFlowEntryUserState(FlowEntryUserState.FE_USER_DELETE); |
| 568 | flowEntry.setFlowEntrySwitchState(FlowEntrySwitchState.FE_SWITCH_NOT_UPDATED); |
| 569 | } |
| 570 | |
Pavlin Radoslavov | 2fca8d1 | 2013-12-04 09:39:06 -0800 | [diff] [blame] | 571 | // Remove the Flow Path from the internal state |
| 572 | Long key = existingFlowPath.flowId().value(); |
| 573 | allFlowPaths.remove(key); |
| 574 | shouldRecomputeFlowPaths.remove(key); |
| 575 | modifiedFlowPaths.put(key, existingFlowPath); |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 576 | |
| 577 | break; |
| 578 | } |
| 579 | } |
| 580 | } |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 581 | } |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 582 | |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 583 | /** |
| 584 | * Process the Topology events. |
| 585 | */ |
| 586 | private void processTopologyEvents() { |
Pavlin Radoslavov | 80bc3cf | 2014-01-08 11:17:30 -0800 | [diff] [blame] | 587 | if (enableOnrc2014MeasurementsTopology) { |
| 588 | if (topologyEvents.isEmpty()) |
| 589 | return; |
| 590 | log.debug("[BEFORE] {}", topology.toString()); |
| 591 | topology.readFromDatabase(dbHandler); |
| 592 | log.debug("[AFTER] {}", topology.toString()); |
| 593 | shouldRecomputeFlowPaths.putAll(allFlowPaths); |
| 594 | return; |
| 595 | } |
| 596 | |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 597 | // |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 598 | // Process all Topology events and update the appropriate state |
Pavlin Radoslavov | a23e541 | 2013-10-27 19:56:40 -0700 | [diff] [blame] | 599 | // |
| 600 | boolean isTopologyModified = false; |
Pavlin Radoslavov | 80bc3cf | 2014-01-08 11:17:30 -0800 | [diff] [blame] | 601 | for (EventEntry<TopologyElement> eventEntry : topologyEvents) { |
| 602 | TopologyElement topologyElement = eventEntry.eventData(); |
Naoki Shiota | 0abe38d | 2014-01-07 15:31:22 -0800 | [diff] [blame] | 603 | |
Pavlin Radoslavov | 80bc3cf | 2014-01-08 11:17:30 -0800 | [diff] [blame] | 604 | log.debug("Topology Event: {} {}", eventEntry.eventType(), |
| 605 | topologyElement.toString()); |
Pavlin Radoslavov | fb94edc | 2013-11-04 16:29:40 -0800 | [diff] [blame] | 606 | |
Pavlin Radoslavov | 80bc3cf | 2014-01-08 11:17:30 -0800 | [diff] [blame] | 607 | switch (eventEntry.eventType()) { |
| 608 | case ENTRY_ADD: |
| 609 | isTopologyModified |= topology.addTopologyElement(topologyElement); |
| 610 | break; |
| 611 | case ENTRY_REMOVE: |
| 612 | isTopologyModified |= topology.removeTopologyElement(topologyElement); |
| 613 | break; |
| 614 | } |
Pavlin Radoslavov | a23e541 | 2013-10-27 19:56:40 -0700 | [diff] [blame] | 615 | } |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 616 | if (isTopologyModified) { |
| 617 | // TODO: For now, if the topology changes, we recompute all Flows |
Pavlin Radoslavov | 2fca8d1 | 2013-12-04 09:39:06 -0800 | [diff] [blame] | 618 | shouldRecomputeFlowPaths.putAll(allFlowPaths); |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 619 | } |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 620 | } |
Pavlin Radoslavov | a23e541 | 2013-10-27 19:56:40 -0700 | [diff] [blame] | 621 | |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 622 | /** |
Pavlin Radoslavov | 9bb4055 | 2013-12-18 21:08:30 -0800 | [diff] [blame] | 623 | * Process previously received Flow Entries with unmatched Flow Paths. |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 624 | */ |
Pavlin Radoslavov | 9bb4055 | 2013-12-18 21:08:30 -0800 | [diff] [blame] | 625 | private void processUnmatchedFlowEntryAdd() { |
Pavlin Radoslavov | 6311717 | 2013-11-07 02:18:37 -0800 | [diff] [blame] | 626 | FlowPath flowPath; |
Pavlin Radoslavov | 237fde7 | 2013-12-17 22:21:06 -0800 | [diff] [blame] | 627 | FlowEntry localFlowEntry; |
Pavlin Radoslavov | 6311717 | 2013-11-07 02:18:37 -0800 | [diff] [blame] | 628 | |
Pavlin Radoslavov | 3ecd41e | 2013-10-29 14:29:30 -0700 | [diff] [blame] | 629 | // |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 630 | // Update Flow Entries with previously unmatched Flow Entry updates |
Pavlin Radoslavov | 1c24f22 | 2013-10-30 13:56:46 -0700 | [diff] [blame] | 631 | // |
Pavlin Radoslavov | 6311717 | 2013-11-07 02:18:37 -0800 | [diff] [blame] | 632 | if (! unmatchedFlowEntryAdd.isEmpty()) { |
| 633 | Map<Long, FlowEntry> remainingUpdates = new HashMap<Long, FlowEntry>(); |
| 634 | for (FlowEntry flowEntry : unmatchedFlowEntryAdd.values()) { |
Pavlin Radoslavov | 9bb4055 | 2013-12-18 21:08:30 -0800 | [diff] [blame] | 635 | // log.debug("Processing Unmatched Flow Entry: {}", |
| 636 | // flowEntry.toString()); |
| 637 | |
Pavlin Radoslavov | 6311717 | 2013-11-07 02:18:37 -0800 | [diff] [blame] | 638 | flowPath = allFlowPaths.get(flowEntry.flowId().value()); |
Pavlin Radoslavov | 9bb4055 | 2013-12-18 21:08:30 -0800 | [diff] [blame] | 639 | if (flowPath == null) { |
Pavlin Radoslavov | 6311717 | 2013-11-07 02:18:37 -0800 | [diff] [blame] | 640 | remainingUpdates.put(flowEntry.flowEntryId().value(), |
| 641 | flowEntry); |
| 642 | continue; |
| 643 | } |
Pavlin Radoslavov | 237fde7 | 2013-12-17 22:21:06 -0800 | [diff] [blame] | 644 | localFlowEntry = findFlowEntryAdd(flowPath, flowEntry); |
| 645 | if (localFlowEntry == null) { |
Pavlin Radoslavov | 6311717 | 2013-11-07 02:18:37 -0800 | [diff] [blame] | 646 | remainingUpdates.put(flowEntry.flowEntryId().value(), |
| 647 | flowEntry); |
| 648 | continue; |
| 649 | } |
Pavlin Radoslavov | 237fde7 | 2013-12-17 22:21:06 -0800 | [diff] [blame] | 650 | if (updateFlowEntryAdd(flowPath, localFlowEntry, flowEntry)) { |
| 651 | modifiedFlowPaths.put(flowPath.flowId().value(), flowPath); |
| 652 | } |
Pavlin Radoslavov | 1c24f22 | 2013-10-30 13:56:46 -0700 | [diff] [blame] | 653 | } |
Pavlin Radoslavov | 6311717 | 2013-11-07 02:18:37 -0800 | [diff] [blame] | 654 | unmatchedFlowEntryAdd = remainingUpdates; |
Pavlin Radoslavov | 1c24f22 | 2013-10-30 13:56:46 -0700 | [diff] [blame] | 655 | } |
Pavlin Radoslavov | 9bb4055 | 2013-12-18 21:08:30 -0800 | [diff] [blame] | 656 | } |
| 657 | |
| 658 | /** |
| 659 | * Process the Flow Entry events. |
| 660 | */ |
| 661 | private void processFlowEntryEvents() { |
| 662 | FlowPath flowPath; |
| 663 | FlowEntry localFlowEntry; |
Pavlin Radoslavov | 1c24f22 | 2013-10-30 13:56:46 -0700 | [diff] [blame] | 664 | |
| 665 | // |
Pavlin Radoslavov | 9f33edb | 2013-11-06 18:24:37 -0800 | [diff] [blame] | 666 | // Process all Flow Entry events and update the appropriate state |
Pavlin Radoslavov | 1c24f22 | 2013-10-30 13:56:46 -0700 | [diff] [blame] | 667 | // |
| 668 | for (EventEntry<FlowEntry> eventEntry : flowEntryEvents) { |
| 669 | FlowEntry flowEntry = eventEntry.eventData(); |
Pavlin Radoslavov | 6311717 | 2013-11-07 02:18:37 -0800 | [diff] [blame] | 670 | |
| 671 | log.debug("Flow Entry Event: {} {}", eventEntry.eventType(), |
Yuta HIGUCHI | 5302ddf | 2014-01-06 12:53:35 -0800 | [diff] [blame] | 672 | flowEntry); |
Pavlin Radoslavov | 6311717 | 2013-11-07 02:18:37 -0800 | [diff] [blame] | 673 | |
| 674 | if ((! flowEntry.isValidFlowId()) || |
| 675 | (! flowEntry.isValidFlowEntryId())) { |
| 676 | continue; |
| 677 | } |
| 678 | |
Pavlin Radoslavov | 1c24f22 | 2013-10-30 13:56:46 -0700 | [diff] [blame] | 679 | switch (eventEntry.eventType()) { |
| 680 | case ENTRY_ADD: |
Pavlin Radoslavov | 6311717 | 2013-11-07 02:18:37 -0800 | [diff] [blame] | 681 | flowPath = allFlowPaths.get(flowEntry.flowId().value()); |
| 682 | if (flowPath == null) { |
| 683 | // Flow Path not found: keep the entry for later matching |
| 684 | unmatchedFlowEntryAdd.put(flowEntry.flowEntryId().value(), |
| 685 | flowEntry); |
| 686 | break; |
| 687 | } |
Pavlin Radoslavov | 237fde7 | 2013-12-17 22:21:06 -0800 | [diff] [blame] | 688 | localFlowEntry = findFlowEntryAdd(flowPath, flowEntry); |
| 689 | if (localFlowEntry == null) { |
Pavlin Radoslavov | 6311717 | 2013-11-07 02:18:37 -0800 | [diff] [blame] | 690 | // Flow Entry not found: keep the entry for later matching |
| 691 | unmatchedFlowEntryAdd.put(flowEntry.flowEntryId().value(), |
| 692 | flowEntry); |
| 693 | break; |
| 694 | } |
Pavlin Radoslavov | 237fde7 | 2013-12-17 22:21:06 -0800 | [diff] [blame] | 695 | if (updateFlowEntryAdd(flowPath, localFlowEntry, flowEntry)) { |
| 696 | // Add the updated Flow Path to the list of updated paths |
| 697 | modifiedFlowPaths.put(flowPath.flowId().value(), flowPath); |
| 698 | } |
Pavlin Radoslavov | 1c24f22 | 2013-10-30 13:56:46 -0700 | [diff] [blame] | 699 | break; |
Pavlin Radoslavov | 6311717 | 2013-11-07 02:18:37 -0800 | [diff] [blame] | 700 | |
Pavlin Radoslavov | 1c24f22 | 2013-10-30 13:56:46 -0700 | [diff] [blame] | 701 | case ENTRY_REMOVE: |
Pavlin Radoslavov | 6311717 | 2013-11-07 02:18:37 -0800 | [diff] [blame] | 702 | flowEntry.setFlowEntryUserState(FlowEntryUserState.FE_USER_DELETE); |
| 703 | if (unmatchedFlowEntryAdd.remove(flowEntry.flowEntryId().value()) != null) { |
Pavlin Radoslavov | 2fca8d1 | 2013-12-04 09:39:06 -0800 | [diff] [blame] | 704 | continue; // Removed previously unmatched entry |
Pavlin Radoslavov | 6311717 | 2013-11-07 02:18:37 -0800 | [diff] [blame] | 705 | } |
Pavlin Radoslavov | 2fca8d1 | 2013-12-04 09:39:06 -0800 | [diff] [blame] | 706 | |
Pavlin Radoslavov | 6311717 | 2013-11-07 02:18:37 -0800 | [diff] [blame] | 707 | flowPath = allFlowPaths.get(flowEntry.flowId().value()); |
| 708 | if (flowPath == null) { |
| 709 | // Flow Path not found: ignore the update |
| 710 | break; |
| 711 | } |
Pavlin Radoslavov | 237fde7 | 2013-12-17 22:21:06 -0800 | [diff] [blame] | 712 | localFlowEntry = findFlowEntryRemove(flowPath, flowEntry); |
| 713 | if (localFlowEntry == null) { |
Pavlin Radoslavov | 2fca8d1 | 2013-12-04 09:39:06 -0800 | [diff] [blame] | 714 | // Flow Entry not found: ignore it |
Pavlin Radoslavov | 6311717 | 2013-11-07 02:18:37 -0800 | [diff] [blame] | 715 | break; |
| 716 | } |
Pavlin Radoslavov | 237fde7 | 2013-12-17 22:21:06 -0800 | [diff] [blame] | 717 | if (updateFlowEntryRemove(flowPath, localFlowEntry, |
| 718 | flowEntry)) { |
| 719 | // Add the updated Flow Path to the list of updated paths |
| 720 | modifiedFlowPaths.put(flowPath.flowId().value(), flowPath); |
| 721 | } |
Pavlin Radoslavov | 1c24f22 | 2013-10-30 13:56:46 -0700 | [diff] [blame] | 722 | break; |
| 723 | } |
| 724 | } |
Pavlin Radoslavov | 1c24f22 | 2013-10-30 13:56:46 -0700 | [diff] [blame] | 725 | } |
| 726 | |
| 727 | /** |
Pavlin Radoslavov | 237fde7 | 2013-12-17 22:21:06 -0800 | [diff] [blame] | 728 | * Find a Flow Entry that should be updated because of an external |
| 729 | * ENTRY_ADD event. |
Pavlin Radoslavov | 1c24f22 | 2013-10-30 13:56:46 -0700 | [diff] [blame] | 730 | * |
Pavlin Radoslavov | 6311717 | 2013-11-07 02:18:37 -0800 | [diff] [blame] | 731 | * @param flowPath the FlowPath for the Flow Entry to update. |
Pavlin Radoslavov | 237fde7 | 2013-12-17 22:21:06 -0800 | [diff] [blame] | 732 | * @param newFlowEntry the FlowEntry with the new state. |
| 733 | * @return the Flow Entry that should be updated if found, otherwise null. |
Pavlin Radoslavov | 1c24f22 | 2013-10-30 13:56:46 -0700 | [diff] [blame] | 734 | */ |
Pavlin Radoslavov | 237fde7 | 2013-12-17 22:21:06 -0800 | [diff] [blame] | 735 | private FlowEntry findFlowEntryAdd(FlowPath flowPath, |
| 736 | FlowEntry newFlowEntry) { |
Pavlin Radoslavov | 1c24f22 | 2013-10-30 13:56:46 -0700 | [diff] [blame] | 737 | // |
Pavlin Radoslavov | 6311717 | 2013-11-07 02:18:37 -0800 | [diff] [blame] | 738 | // Iterate over all Flow Entries and find a match. |
Pavlin Radoslavov | 1c24f22 | 2013-10-30 13:56:46 -0700 | [diff] [blame] | 739 | // |
| 740 | for (FlowEntry localFlowEntry : flowPath.flowEntries()) { |
Pavlin Radoslavov | 6311717 | 2013-11-07 02:18:37 -0800 | [diff] [blame] | 741 | if (! TopologyManager.isSameFlowEntryDataPath(localFlowEntry, |
Pavlin Radoslavov | 237fde7 | 2013-12-17 22:21:06 -0800 | [diff] [blame] | 742 | newFlowEntry)) { |
Pavlin Radoslavov | 1c24f22 | 2013-10-30 13:56:46 -0700 | [diff] [blame] | 743 | continue; |
Pavlin Radoslavov | 6311717 | 2013-11-07 02:18:37 -0800 | [diff] [blame] | 744 | } |
Pavlin Radoslavov | 1c24f22 | 2013-10-30 13:56:46 -0700 | [diff] [blame] | 745 | |
| 746 | // |
| 747 | // Local Flow Entry match found |
| 748 | // |
| 749 | if (localFlowEntry.isValidFlowEntryId()) { |
| 750 | if (localFlowEntry.flowEntryId().value() != |
Pavlin Radoslavov | 237fde7 | 2013-12-17 22:21:06 -0800 | [diff] [blame] | 751 | newFlowEntry.flowEntryId().value()) { |
Pavlin Radoslavov | 1c24f22 | 2013-10-30 13:56:46 -0700 | [diff] [blame] | 752 | // |
| 753 | // Find a local Flow Entry, but the Flow Entry ID doesn't |
Pavlin Radoslavov | 6311717 | 2013-11-07 02:18:37 -0800 | [diff] [blame] | 754 | // match. Keep looking. |
Pavlin Radoslavov | 1c24f22 | 2013-10-30 13:56:46 -0700 | [diff] [blame] | 755 | // |
Pavlin Radoslavov | 6311717 | 2013-11-07 02:18:37 -0800 | [diff] [blame] | 756 | continue; |
Pavlin Radoslavov | 1c24f22 | 2013-10-30 13:56:46 -0700 | [diff] [blame] | 757 | } |
Pavlin Radoslavov | 1c24f22 | 2013-10-30 13:56:46 -0700 | [diff] [blame] | 758 | } |
Pavlin Radoslavov | 237fde7 | 2013-12-17 22:21:06 -0800 | [diff] [blame] | 759 | return localFlowEntry; |
| 760 | } |
Pavlin Radoslavov | 1c24f22 | 2013-10-30 13:56:46 -0700 | [diff] [blame] | 761 | |
Pavlin Radoslavov | 237fde7 | 2013-12-17 22:21:06 -0800 | [diff] [blame] | 762 | return null; // Entry not found |
| 763 | } |
| 764 | |
| 765 | /** |
| 766 | * Update a Flow Entry because of an external ENTRY_ADD event. |
| 767 | * |
| 768 | * @param flowPath the FlowPath for the Flow Entry to update. |
| 769 | * @param localFlowEntry the local Flow Entry to update. |
| 770 | * @param newFlowEntry the FlowEntry with the new state. |
| 771 | * @return true if the local Flow Entry was updated, otherwise false. |
| 772 | */ |
| 773 | private boolean updateFlowEntryAdd(FlowPath flowPath, |
| 774 | FlowEntry localFlowEntry, |
| 775 | FlowEntry newFlowEntry) { |
| 776 | boolean updated = false; |
| 777 | |
| 778 | if (localFlowEntry.flowEntryUserState() == |
| 779 | FlowEntryUserState.FE_USER_DELETE) { |
| 780 | // Don't add-back a Flow Entry that is already deleted |
| 781 | return false; |
| 782 | } |
| 783 | |
| 784 | if (! localFlowEntry.isValidFlowEntryId()) { |
| 785 | // Update the Flow Entry ID |
| 786 | FlowEntryId flowEntryId = |
| 787 | new FlowEntryId(newFlowEntry.flowEntryId().value()); |
| 788 | localFlowEntry.setFlowEntryId(flowEntryId); |
| 789 | updated = true; |
| 790 | } |
| 791 | |
| 792 | // |
| 793 | // Update the local Flow Entry, and keep state to check |
| 794 | // if the Flow Path has been installed. |
| 795 | // |
| 796 | if (localFlowEntry.flowEntryUserState() != |
| 797 | newFlowEntry.flowEntryUserState()) { |
| 798 | localFlowEntry.setFlowEntryUserState( |
| 799 | newFlowEntry.flowEntryUserState()); |
| 800 | updated = true; |
| 801 | } |
| 802 | if (localFlowEntry.flowEntrySwitchState() != |
| 803 | newFlowEntry.flowEntrySwitchState()) { |
| 804 | localFlowEntry.setFlowEntrySwitchState( |
| 805 | newFlowEntry.flowEntrySwitchState()); |
Pavlin Radoslavov | 7208e9a | 2013-12-11 14:31:07 -0800 | [diff] [blame] | 806 | checkIfInstalledFlowPaths.put(flowPath.flowId().value(), flowPath); |
Pavlin Radoslavov | 237fde7 | 2013-12-17 22:21:06 -0800 | [diff] [blame] | 807 | updated = true; |
| 808 | } |
| 809 | |
| 810 | return updated; |
| 811 | } |
| 812 | |
| 813 | /** |
| 814 | * Find a Flow Entry that should be updated because of an external |
| 815 | * ENTRY_REMOVE event. |
| 816 | * |
| 817 | * @param flowPath the FlowPath for the Flow Entry to update. |
| 818 | * @param newFlowEntry the FlowEntry with the new state. |
| 819 | * @return the Flow Entry that should be updated if found, otherwise null. |
| 820 | */ |
| 821 | private FlowEntry findFlowEntryRemove(FlowPath flowPath, |
| 822 | FlowEntry newFlowEntry) { |
| 823 | // |
| 824 | // Iterate over all Flow Entries and find a match based on |
| 825 | // the Flow Entry ID. |
| 826 | // |
| 827 | for (FlowEntry localFlowEntry : flowPath.flowEntries()) { |
| 828 | if (! localFlowEntry.isValidFlowEntryId()) |
| 829 | continue; |
| 830 | if (localFlowEntry.flowEntryId().value() != |
| 831 | newFlowEntry.flowEntryId().value()) { |
| 832 | continue; |
| 833 | } |
Pavlin Radoslavov | 6311717 | 2013-11-07 02:18:37 -0800 | [diff] [blame] | 834 | return localFlowEntry; |
Pavlin Radoslavov | 1c24f22 | 2013-10-30 13:56:46 -0700 | [diff] [blame] | 835 | } |
| 836 | |
Pavlin Radoslavov | 6311717 | 2013-11-07 02:18:37 -0800 | [diff] [blame] | 837 | return null; // Entry not found |
| 838 | } |
| 839 | |
| 840 | /** |
| 841 | * Update a Flow Entry because of an external ENTRY_REMOVE event. |
| 842 | * |
| 843 | * @param flowPath the FlowPath for the Flow Entry to update. |
Pavlin Radoslavov | 237fde7 | 2013-12-17 22:21:06 -0800 | [diff] [blame] | 844 | * @param localFlowEntry the local Flow Entry to update. |
| 845 | * @param newFlowEntry the FlowEntry with the new state. |
| 846 | * @return true if the local Flow Entry was updated, otherwise false. |
Pavlin Radoslavov | 6311717 | 2013-11-07 02:18:37 -0800 | [diff] [blame] | 847 | */ |
Pavlin Radoslavov | 237fde7 | 2013-12-17 22:21:06 -0800 | [diff] [blame] | 848 | private boolean updateFlowEntryRemove(FlowPath flowPath, |
| 849 | FlowEntry localFlowEntry, |
| 850 | FlowEntry newFlowEntry) { |
| 851 | boolean updated = false; |
| 852 | |
Pavlin Radoslavov | 6311717 | 2013-11-07 02:18:37 -0800 | [diff] [blame] | 853 | // |
Pavlin Radoslavov | 237fde7 | 2013-12-17 22:21:06 -0800 | [diff] [blame] | 854 | // Update the local Flow Entry. |
Pavlin Radoslavov | 6311717 | 2013-11-07 02:18:37 -0800 | [diff] [blame] | 855 | // |
Pavlin Radoslavov | 237fde7 | 2013-12-17 22:21:06 -0800 | [diff] [blame] | 856 | if (localFlowEntry.flowEntryUserState() != |
| 857 | newFlowEntry.flowEntryUserState()) { |
| 858 | localFlowEntry.setFlowEntryUserState( |
| 859 | newFlowEntry.flowEntryUserState()); |
| 860 | updated = true; |
| 861 | } |
| 862 | if (localFlowEntry.flowEntrySwitchState() != |
| 863 | newFlowEntry.flowEntrySwitchState()) { |
| 864 | localFlowEntry.setFlowEntrySwitchState( |
| 865 | newFlowEntry.flowEntrySwitchState()); |
| 866 | updated = true; |
Pavlin Radoslavov | 6311717 | 2013-11-07 02:18:37 -0800 | [diff] [blame] | 867 | } |
| 868 | |
Pavlin Radoslavov | 237fde7 | 2013-12-17 22:21:06 -0800 | [diff] [blame] | 869 | return updated; |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 870 | } |
| 871 | |
| 872 | /** |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 873 | * Recompute a Flow Path. |
| 874 | * |
| 875 | * @param flowPath the Flow Path to recompute. |
| 876 | * @return true if the recomputed Flow Path has changed, otherwise false. |
| 877 | */ |
| 878 | private boolean recomputeFlowPath(FlowPath flowPath) { |
| 879 | boolean hasChanged = false; |
| 880 | |
| 881 | // |
| 882 | // Test whether the Flow Path needs to be recomputed |
| 883 | // |
| 884 | switch (flowPath.flowPathType()) { |
Yuta HIGUCHI | e1038fb | 2013-10-30 15:35:18 -0700 | [diff] [blame] | 885 | case FP_TYPE_UNKNOWN: |
| 886 | return false; // Can't recompute on Unknown FlowType |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 887 | case FP_TYPE_SHORTEST_PATH: |
| 888 | break; |
| 889 | case FP_TYPE_EXPLICIT_PATH: |
| 890 | return false; // An explicit path never changes |
| 891 | } |
| 892 | |
| 893 | DataPath oldDataPath = flowPath.dataPath(); |
| 894 | |
Pavlin Radoslavov | 3ecd41e | 2013-10-29 14:29:30 -0700 | [diff] [blame] | 895 | // Compute the new path |
| 896 | DataPath newDataPath = TopologyManager.computeNetworkPath(topology, |
| 897 | flowPath); |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 898 | if (newDataPath == null) { |
| 899 | // We need the DataPath to compare the paths |
| 900 | newDataPath = new DataPath(); |
| 901 | } |
| 902 | newDataPath.applyFlowPathFlags(flowPath.flowPathFlags()); |
| 903 | |
| 904 | // |
Pavlin Radoslavov | 3ecd41e | 2013-10-29 14:29:30 -0700 | [diff] [blame] | 905 | // Test whether the new path is same |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 906 | // |
| 907 | if (oldDataPath.flowEntries().size() != |
| 908 | newDataPath.flowEntries().size()) { |
| 909 | hasChanged = true; |
| 910 | } else { |
| 911 | Iterator<FlowEntry> oldIter = oldDataPath.flowEntries().iterator(); |
| 912 | Iterator<FlowEntry> newIter = newDataPath.flowEntries().iterator(); |
| 913 | while (oldIter.hasNext() && newIter.hasNext()) { |
| 914 | FlowEntry oldFlowEntry = oldIter.next(); |
| 915 | FlowEntry newFlowEntry = newIter.next(); |
Pavlin Radoslavov | 3ecd41e | 2013-10-29 14:29:30 -0700 | [diff] [blame] | 916 | if (! TopologyManager.isSameFlowEntryDataPath(oldFlowEntry, |
| 917 | newFlowEntry)) { |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 918 | hasChanged = true; |
| 919 | break; |
| 920 | } |
| 921 | } |
| 922 | } |
| 923 | if (! hasChanged) |
| 924 | return hasChanged; |
| 925 | |
| 926 | // |
Pavlin Radoslavov | 3ecd41e | 2013-10-29 14:29:30 -0700 | [diff] [blame] | 927 | // Merge the changes in the path: |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 928 | // - If a Flow Entry for a switch is in the old data path, but not |
| 929 | // in the new data path, then mark it for deletion. |
| 930 | // - If a Flow Entry for a switch is in the new data path, but not |
| 931 | // in the old data path, then mark it for addition. |
| 932 | // - If a Flow Entry for a switch is in both the old and the new |
| 933 | // data path, but it has changed, e.g., the incoming and/or outgoing |
| 934 | // port(s), then mark the old Flow Entry for deletion, and mark |
| 935 | // the new Flow Entry for addition. |
| 936 | // - If a Flow Entry for a switch is in both the old and the new |
| 937 | // data path, and it hasn't changed, then just keep it. |
| 938 | // |
| 939 | // NOTE: We use the Switch DPID of each entry to match the entries |
| 940 | // |
| 941 | Map<Long, FlowEntry> oldFlowEntriesMap = new HashMap<Long, FlowEntry>(); |
| 942 | Map<Long, FlowEntry> newFlowEntriesMap = new HashMap<Long, FlowEntry>(); |
| 943 | ArrayList<FlowEntry> finalFlowEntries = new ArrayList<FlowEntry>(); |
| 944 | List<FlowEntry> deletedFlowEntries = new LinkedList<FlowEntry>(); |
| 945 | |
| 946 | // Prepare maps with the Flow Entries, so they are fast to lookup |
| 947 | for (FlowEntry flowEntry : oldDataPath.flowEntries()) |
| 948 | oldFlowEntriesMap.put(flowEntry.dpid().value(), flowEntry); |
| 949 | for (FlowEntry flowEntry : newDataPath.flowEntries()) |
| 950 | newFlowEntriesMap.put(flowEntry.dpid().value(), flowEntry); |
| 951 | |
| 952 | // |
| 953 | // Find the old Flow Entries that should be deleted |
| 954 | // |
| 955 | for (FlowEntry oldFlowEntry : oldDataPath.flowEntries()) { |
| 956 | FlowEntry newFlowEntry = |
| 957 | newFlowEntriesMap.get(oldFlowEntry.dpid().value()); |
| 958 | if (newFlowEntry == null) { |
Pavlin Radoslavov | fb94edc | 2013-11-04 16:29:40 -0800 | [diff] [blame] | 959 | // The old Flow Entry should be deleted: not on the path |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 960 | oldFlowEntry.setFlowEntryUserState(FlowEntryUserState.FE_USER_DELETE); |
| 961 | oldFlowEntry.setFlowEntrySwitchState(FlowEntrySwitchState.FE_SWITCH_NOT_UPDATED); |
| 962 | deletedFlowEntries.add(oldFlowEntry); |
| 963 | } |
| 964 | } |
| 965 | |
| 966 | // |
| 967 | // Find the new Flow Entries that should be added or updated |
| 968 | // |
| 969 | int idx = 0; |
| 970 | for (FlowEntry newFlowEntry : newDataPath.flowEntries()) { |
| 971 | FlowEntry oldFlowEntry = |
| 972 | oldFlowEntriesMap.get(newFlowEntry.dpid().value()); |
| 973 | |
| 974 | if ((oldFlowEntry != null) && |
Pavlin Radoslavov | 3ecd41e | 2013-10-29 14:29:30 -0700 | [diff] [blame] | 975 | TopologyManager.isSameFlowEntryDataPath(oldFlowEntry, |
| 976 | newFlowEntry)) { |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 977 | // |
| 978 | // Both Flow Entries are same |
| 979 | // |
| 980 | finalFlowEntries.add(oldFlowEntry); |
| 981 | idx++; |
| 982 | continue; |
| 983 | } |
| 984 | |
| 985 | if (oldFlowEntry != null) { |
| 986 | // |
Pavlin Radoslavov | fb94edc | 2013-11-04 16:29:40 -0800 | [diff] [blame] | 987 | // The old Flow Entry should be deleted: path diverges |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 988 | // |
| 989 | oldFlowEntry.setFlowEntryUserState(FlowEntryUserState.FE_USER_DELETE); |
| 990 | oldFlowEntry.setFlowEntrySwitchState(FlowEntrySwitchState.FE_SWITCH_NOT_UPDATED); |
| 991 | deletedFlowEntries.add(oldFlowEntry); |
| 992 | } |
| 993 | |
| 994 | // |
| 995 | // Add the new Flow Entry |
| 996 | // |
Pavlin Radoslavov | 1c24f22 | 2013-10-30 13:56:46 -0700 | [diff] [blame] | 997 | // |
| 998 | // NOTE: Assign only the Flow ID. |
| 999 | // The Flow Entry ID is assigned later only for the Flow Entries |
| 1000 | // this instance is responsible for. |
| 1001 | // |
| 1002 | newFlowEntry.setFlowId(new FlowId(flowPath.flowId().value())); |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 1003 | |
Pavlin Radoslavov | a4df952 | 2013-12-03 11:03:04 -0800 | [diff] [blame] | 1004 | // |
Pavlin Radoslavov | 6fde217 | 2013-12-10 11:23:18 -0800 | [diff] [blame] | 1005 | // Copy the Flow timeouts |
| 1006 | // |
| 1007 | newFlowEntry.setIdleTimeout(flowPath.idleTimeout()); |
| 1008 | newFlowEntry.setHardTimeout(flowPath.hardTimeout()); |
| 1009 | |
| 1010 | // |
Pavlin Radoslavov | a4df952 | 2013-12-03 11:03:04 -0800 | [diff] [blame] | 1011 | // Allocate the FlowEntryMatch by copying the default one |
| 1012 | // from the FlowPath (if set). |
| 1013 | // |
| 1014 | FlowEntryMatch flowEntryMatch = null; |
| 1015 | if (flowPath.flowEntryMatch() != null) |
| 1016 | flowEntryMatch = new FlowEntryMatch(flowPath.flowEntryMatch()); |
| 1017 | else |
| 1018 | flowEntryMatch = new FlowEntryMatch(); |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 1019 | newFlowEntry.setFlowEntryMatch(flowEntryMatch); |
Pavlin Radoslavov | a4df952 | 2013-12-03 11:03:04 -0800 | [diff] [blame] | 1020 | |
| 1021 | // Set the incoming port matching |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 1022 | flowEntryMatch.enableInPort(newFlowEntry.inPort()); |
| 1023 | |
| 1024 | // |
| 1025 | // Set the actions: |
| 1026 | // If the first Flow Entry, copy the Flow Path actions to it. |
| 1027 | // |
| 1028 | FlowEntryActions flowEntryActions = newFlowEntry.flowEntryActions(); |
| 1029 | if ((idx == 0) && (flowPath.flowEntryActions() != null)) { |
| 1030 | FlowEntryActions flowActions = |
| 1031 | new FlowEntryActions(flowPath.flowEntryActions()); |
| 1032 | for (FlowEntryAction action : flowActions.actions()) |
| 1033 | flowEntryActions.addAction(action); |
| 1034 | } |
| 1035 | idx++; |
| 1036 | |
| 1037 | // |
| 1038 | // Add the outgoing port output action |
| 1039 | // |
| 1040 | FlowEntryAction flowEntryAction = new FlowEntryAction(); |
| 1041 | flowEntryAction.setActionOutput(newFlowEntry.outPort()); |
| 1042 | flowEntryActions.addAction(flowEntryAction); |
| 1043 | |
| 1044 | // |
| 1045 | // Set the state of the new Flow Entry |
| 1046 | // |
| 1047 | newFlowEntry.setFlowEntryUserState(FlowEntryUserState.FE_USER_ADD); |
| 1048 | newFlowEntry.setFlowEntrySwitchState(FlowEntrySwitchState.FE_SWITCH_NOT_UPDATED); |
| 1049 | finalFlowEntries.add(newFlowEntry); |
| 1050 | } |
| 1051 | |
| 1052 | // |
| 1053 | // Replace the old Flow Entries with the new Flow Entries. |
| 1054 | // Note that the Flow Entries that will be deleted are added at |
| 1055 | // the end. |
| 1056 | // |
Pavlin Radoslavov | fb94edc | 2013-11-04 16:29:40 -0800 | [diff] [blame] | 1057 | finalFlowEntries.addAll(deletedFlowEntries); |
Pavlin Radoslavov | fb06a9e | 2013-10-28 23:56:15 -0700 | [diff] [blame] | 1058 | flowPath.dataPath().setFlowEntries(finalFlowEntries); |
| 1059 | |
| 1060 | return hasChanged; |
| 1061 | } |
| 1062 | |
| 1063 | /** |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 1064 | * Receive a notification that a Flow is added. |
| 1065 | * |
Pavlin Radoslavov | b750684 | 2013-10-29 17:46:54 -0700 | [diff] [blame] | 1066 | * @param flowPath the Flow that is added. |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 1067 | */ |
| 1068 | @Override |
| 1069 | public void notificationRecvFlowAdded(FlowPath flowPath) { |
| 1070 | EventEntry<FlowPath> eventEntry = |
| 1071 | new EventEntry<FlowPath>(EventEntry.Type.ENTRY_ADD, flowPath); |
| 1072 | networkEvents.add(eventEntry); |
| 1073 | } |
| 1074 | |
| 1075 | /** |
| 1076 | * Receive a notification that a Flow is removed. |
| 1077 | * |
Pavlin Radoslavov | b750684 | 2013-10-29 17:46:54 -0700 | [diff] [blame] | 1078 | * @param flowPath the Flow that is removed. |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 1079 | */ |
| 1080 | @Override |
| 1081 | public void notificationRecvFlowRemoved(FlowPath flowPath) { |
| 1082 | EventEntry<FlowPath> eventEntry = |
| 1083 | new EventEntry<FlowPath>(EventEntry.Type.ENTRY_REMOVE, flowPath); |
| 1084 | networkEvents.add(eventEntry); |
| 1085 | } |
| 1086 | |
| 1087 | /** |
| 1088 | * Receive a notification that a Flow is updated. |
| 1089 | * |
Pavlin Radoslavov | b750684 | 2013-10-29 17:46:54 -0700 | [diff] [blame] | 1090 | * @param flowPath the Flow that is updated. |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 1091 | */ |
| 1092 | @Override |
| 1093 | public void notificationRecvFlowUpdated(FlowPath flowPath) { |
| 1094 | // NOTE: The ADD and UPDATE events are processed in same way |
| 1095 | EventEntry<FlowPath> eventEntry = |
| 1096 | new EventEntry<FlowPath>(EventEntry.Type.ENTRY_ADD, flowPath); |
| 1097 | networkEvents.add(eventEntry); |
| 1098 | } |
| 1099 | |
| 1100 | /** |
Pavlin Radoslavov | b750684 | 2013-10-29 17:46:54 -0700 | [diff] [blame] | 1101 | * Receive a notification that a FlowEntry is added. |
| 1102 | * |
| 1103 | * @param flowEntry the FlowEntry that is added. |
| 1104 | */ |
| 1105 | @Override |
| 1106 | public void notificationRecvFlowEntryAdded(FlowEntry flowEntry) { |
| 1107 | EventEntry<FlowEntry> eventEntry = |
| 1108 | new EventEntry<FlowEntry>(EventEntry.Type.ENTRY_ADD, flowEntry); |
| 1109 | networkEvents.add(eventEntry); |
| 1110 | } |
| 1111 | |
| 1112 | /** |
| 1113 | * Receive a notification that a FlowEntry is removed. |
| 1114 | * |
| 1115 | * @param flowEntry the FlowEntry that is removed. |
| 1116 | */ |
| 1117 | @Override |
| 1118 | public void notificationRecvFlowEntryRemoved(FlowEntry flowEntry) { |
| 1119 | EventEntry<FlowEntry> eventEntry = |
| 1120 | new EventEntry<FlowEntry>(EventEntry.Type.ENTRY_REMOVE, flowEntry); |
| 1121 | networkEvents.add(eventEntry); |
| 1122 | } |
| 1123 | |
| 1124 | /** |
| 1125 | * Receive a notification that a FlowEntry is updated. |
| 1126 | * |
| 1127 | * @param flowEntry the FlowEntry that is updated. |
| 1128 | */ |
| 1129 | @Override |
| 1130 | public void notificationRecvFlowEntryUpdated(FlowEntry flowEntry) { |
| 1131 | // NOTE: The ADD and UPDATE events are processed in same way |
| 1132 | EventEntry<FlowEntry> eventEntry = |
| 1133 | new EventEntry<FlowEntry>(EventEntry.Type.ENTRY_ADD, flowEntry); |
| 1134 | networkEvents.add(eventEntry); |
| 1135 | } |
| 1136 | |
| 1137 | /** |
Pavlin Radoslavov | 2004fa0 | 2014-01-07 14:46:42 -0800 | [diff] [blame] | 1138 | * Receive a notification that a FlowId is added. |
| 1139 | * |
| 1140 | * @param flowId the FlowId that is added. |
| 1141 | */ |
| 1142 | @Override |
| 1143 | public void notificationRecvFlowIdAdded(FlowId flowId) { |
| 1144 | EventEntry<FlowId> eventEntry = |
| 1145 | new EventEntry<FlowId>(EventEntry.Type.ENTRY_ADD, flowId); |
| 1146 | networkEvents.add(eventEntry); |
| 1147 | } |
| 1148 | |
| 1149 | /** |
| 1150 | * Receive a notification that a FlowId is removed. |
| 1151 | * |
| 1152 | * @param flowId the FlowId that is removed. |
| 1153 | */ |
| 1154 | @Override |
| 1155 | public void notificationRecvFlowIdRemoved(FlowId flowId) { |
| 1156 | EventEntry<FlowId> eventEntry = |
| 1157 | new EventEntry<FlowId>(EventEntry.Type.ENTRY_REMOVE, flowId); |
| 1158 | networkEvents.add(eventEntry); |
| 1159 | } |
| 1160 | |
| 1161 | /** |
| 1162 | * Receive a notification that a FlowId is updated. |
| 1163 | * |
| 1164 | * @param flowId the FlowId that is updated. |
| 1165 | */ |
| 1166 | @Override |
| 1167 | public void notificationRecvFlowIdUpdated(FlowId flowId) { |
| 1168 | // NOTE: The ADD and UPDATE events are processed in same way |
| 1169 | EventEntry<FlowId> eventEntry = |
| 1170 | new EventEntry<FlowId>(EventEntry.Type.ENTRY_ADD, flowId); |
| 1171 | networkEvents.add(eventEntry); |
| 1172 | } |
| 1173 | |
| 1174 | /** |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 1175 | * Receive a notification that a Topology Element is added. |
| 1176 | * |
| 1177 | * @param topologyElement the Topology Element that is added. |
| 1178 | */ |
| 1179 | @Override |
| 1180 | public void notificationRecvTopologyElementAdded(TopologyElement topologyElement) { |
| 1181 | EventEntry<TopologyElement> eventEntry = |
| 1182 | new EventEntry<TopologyElement>(EventEntry.Type.ENTRY_ADD, topologyElement); |
| 1183 | networkEvents.add(eventEntry); |
| 1184 | } |
| 1185 | |
| 1186 | /** |
| 1187 | * Receive a notification that a Topology Element is removed. |
| 1188 | * |
| 1189 | * @param topologyElement the Topology Element that is removed. |
| 1190 | */ |
| 1191 | @Override |
| 1192 | public void notificationRecvTopologyElementRemoved(TopologyElement topologyElement) { |
| 1193 | EventEntry<TopologyElement> eventEntry = |
| 1194 | new EventEntry<TopologyElement>(EventEntry.Type.ENTRY_REMOVE, topologyElement); |
| 1195 | networkEvents.add(eventEntry); |
| 1196 | } |
| 1197 | |
| 1198 | /** |
| 1199 | * Receive a notification that a Topology Element is updated. |
| 1200 | * |
| 1201 | * @param topologyElement the Topology Element that is updated. |
| 1202 | */ |
| 1203 | @Override |
| 1204 | public void notificationRecvTopologyElementUpdated(TopologyElement topologyElement) { |
| 1205 | // NOTE: The ADD and UPDATE events are processed in same way |
| 1206 | EventEntry<TopologyElement> eventEntry = |
| 1207 | new EventEntry<TopologyElement>(EventEntry.Type.ENTRY_ADD, topologyElement); |
| 1208 | networkEvents.add(eventEntry); |
| 1209 | } |
Pavlin Radoslavov | 5321980 | 2013-12-06 11:02:04 -0800 | [diff] [blame] | 1210 | |
| 1211 | /** |
| 1212 | * Get a sorted copy of all Flow Paths. |
| 1213 | * |
| 1214 | * @return a sorted copy of all Flow Paths. |
| 1215 | */ |
| 1216 | synchronized SortedMap<Long, FlowPath> getAllFlowPathsCopy() { |
| 1217 | SortedMap<Long, FlowPath> sortedFlowPaths = |
| 1218 | new TreeMap<Long, FlowPath>(); |
| 1219 | |
| 1220 | // |
| 1221 | // TODO: For now we use serialization/deserialization to create |
| 1222 | // a copy of each Flow Path. In the future, we should use proper |
| 1223 | // copy constructors. |
| 1224 | // |
| 1225 | Kryo kryo = kryoFactory.newKryo(); |
| 1226 | synchronized (allFlowPaths) { |
| 1227 | for (Map.Entry<Long, FlowPath> entry : allFlowPaths.entrySet()) { |
| 1228 | FlowPath origFlowPath = entry.getValue(); |
| 1229 | FlowPath copyFlowPath = kryo.copy(origFlowPath); |
| 1230 | sortedFlowPaths.put(entry.getKey(), copyFlowPath); |
| 1231 | } |
| 1232 | } |
| 1233 | kryoFactory.deleteKryo(kryo); |
| 1234 | |
| 1235 | return sortedFlowPaths; |
| 1236 | } |
Pavlin Radoslavov | 6b79f2b | 2013-10-26 21:31:10 -0700 | [diff] [blame] | 1237 | } |