neutron-ovsdb/src/main/java/org/opendaylight/groupbasedpolicy/neutron/ovsdb/OvsdbNodeListener.java

   1 /*
   2  * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.groupbasedpolicy.neutron.ovsdb;
   9
  10 import javax.annotation.Nonnull;
  11 import java.util.HashMap;
  12 import java.util.HashSet;
  13 import java.util.List;
  14 import java.util.Map;
  15 import java.util.Objects;
  16 import java.util.Set;
  17
  18
  19 import com.google.common.base.Function;
  20 import com.google.common.base.Strings;
  21 import com.google.common.collect.ImmutableList;
  22 import com.google.common.collect.Lists;
  23 import com.google.common.util.concurrent.FutureCallback;
  24 import com.google.common.util.concurrent.Futures;
  25
  26 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  27 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification;
  28 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
  29 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  30 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  31 import org.opendaylight.groupbasedpolicy.neutron.ovsdb.util.InventoryHelper;
  32 import org.opendaylight.groupbasedpolicy.neutron.ovsdb.util.NeutronOvsdbIidFactory;
  33 import org.opendaylight.groupbasedpolicy.util.DataTreeChangeHandler;
  34 import org.opendaylight.ovsdb.southbound.SouthboundConstants;
  35 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Uri;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.neutron.ovsdb.params.rev160812.IntegrationBridgeSetting;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.DatapathTypeSystem;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeAugmentation;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeAugmentationBuilder;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeName;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeProtocolOpenflow13;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeRef;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbNodeAugmentation;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbNodeRef;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbTerminationPointAugmentation;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.bridge.attributes.ControllerEntry;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.bridge.attributes.ControllerEntryBuilder;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.bridge.attributes.ProtocolEntryBuilder;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.ManagedNodeEntry;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.ManagerEntry;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.OpenvswitchOtherConfigs;
  54 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.OpenvswitchOtherConfigsKey;
  55 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
  56 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
  57 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
  58 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  59 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeBuilder;
  60 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeKey;
  61 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPoint;
  62 import org.opendaylight.yangtools.yang.binding.DataObject;
  63 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  64 import org.slf4j.Logger;
  65 import org.slf4j.LoggerFactory;
  66
  67 public class OvsdbNodeListener extends DataTreeChangeHandler<Node> {
  68
  69     static final String BRIDGE_SEPARATOR = "/bridge/";
  70     static final String NEUTRON_PROVIDER_MAPPINGS_KEY = "provider_mappings";
  71     private static final Logger LOG = LoggerFactory.getLogger(OvsdbNodeListener.class);
  72     private static final String OF_SEPARATOR = ":";
  73     private static final String OF_INVENTORY_PREFIX = "openflow";
  74     private static IntegrationBridgeSetting intBrSettings;
  75
  76     private final Map<OvsdbBridgeRef, String> providerPortNameByBridgeRef = new HashMap<>();
  77     private final Map<InstanceIdentifier<Node>, NeutronBridgeWithExtPort> bridgeByNodeIid = new HashMap<>();
  78
  79     public OvsdbNodeListener(DataBroker dataProvider, IntegrationBridgeSetting brSettings) {
  80         super(dataProvider);
  81         intBrSettings = brSettings;
  82         this.registerDataTreeChangeListener(new DataTreeIdentifier<>(LogicalDatastoreType.OPERATIONAL,
  83                 InstanceIdentifier.create(NetworkTopology.class)
  84                     .child(Topology.class, new TopologyKey(SouthboundConstants.OVSDB_TOPOLOGY_ID))
  85                     .child(Node.class)));
  86     }
  87
  88     @Override
  89     protected void onWrite(DataObjectModification<Node> rootNode, InstanceIdentifier<Node> rootIdentifier) {
  90         Node node = rootNode.getDataAfter();
  91         OvsdbNodeAugmentation ovsdbNode = node.getAugmentation(OvsdbNodeAugmentation.class);
  92         if (ovsdbNode != null) {
  93             LOG.trace("OVSDB node created: {} \n {}", rootIdentifier, node);
  94             DataObjectModification<OpenvswitchOtherConfigs> ovsOtherConfigModification = getProviderMappingsModification(rootNode);
  95             boolean integrationBridgePresent = false;
  96             if (isProviderPortNameChanged(ovsOtherConfigModification) && ovsdbNode.getManagedNodeEntry() != null) {
  97                 String newProviderPortName = getProviderPortName(ovsOtherConfigModification.getDataAfter());
  98                 LOG.debug("provider_mappings created {} on node {}", newProviderPortName, node.getNodeId().getValue());
  99                 for (ManagedNodeEntry mngdNodeEntry : ovsdbNode.getManagedNodeEntry()) {
 100                     OvsdbBridgeRef bridgeRef = mngdNodeEntry.getBridgeRef();
 101                     providerPortNameByBridgeRef.put(bridgeRef, newProviderPortName);
 102                     LOG.trace("Added Provider port name {} by OVSDB bridge ref {}", newProviderPortName,
 103                             mngdNodeEntry.getBridgeRef());
 104                     NodeKey managedNodeKey = bridgeRef.getValue().firstKeyOf(Node.class);
 105                     if (intBrSettings != null && managedNodeKey.getNodeId().getValue().equals(intBrSettings.getName())) {
 106                         integrationBridgePresent = true;
 107                     }
 108                 }
 109             }
 110             if (intBrSettings != null && !integrationBridgePresent) {
 111                 final Node bridge = createBridge(rootIdentifier,
 112                         managerToControllerEntries(ovsdbNode.getManagerEntry()), intBrSettings.getName());
 113                 InstanceIdentifier<Node> bridgeNodeIid = NeutronOvsdbIidFactory.nodeIid(
 114                         rootIdentifier.firstKeyOf(Topology.class).getTopologyId(), bridge.getNodeId());
 115                 WriteTransaction wTx = dataProvider.newWriteOnlyTransaction();
 116                 wTx.merge(LogicalDatastoreType.CONFIGURATION, bridgeNodeIid, bridge, true);
 117                 Futures.addCallback(wTx.submit(), new FutureCallback<Void>() {
 118
 119                     @Override
 120                     public void onSuccess(Void result) {
 121                         LOG.info("Bridge {} written to datastore." + bridge.getNodeId().getValue());
 122                     }
 123
 124                     @Override
 125                     public void onFailure(Throwable t) {
 126                         LOG.error("Failed to write bridge {}. Message: {}" + bridge.getNodeId().getValue(),
 127                                 t.getMessage());
 128                     }
 129                 });
 130             }
 131         }
 132         OvsdbBridgeAugmentation ovsdbBridge = node.getAugmentation(OvsdbBridgeAugmentation.class);
 133         if (ovsdbBridge != null) {
 134             LOG.trace("OVSDB bridge created: {} \n {}", rootIdentifier, node);
 135             Set<DataObjectModification<OvsdbTerminationPointAugmentation>> ovsdbTpModifications =
 136                     getOvsdbTpModifications(rootNode);
 137             NodeId ofNodeId = buildOfNodeId(ovsdbBridge);
 138             if (!ovsdbTpModifications.isEmpty() && ofNodeId != null) {
 139                 NeutronBridgeWithExtPort bridge = getBridge(rootIdentifier);
 140                 bridge.ofNodeId = ofNodeId;
 141                 LOG.trace("OF node {} representing OVSDB bridge {}", ofNodeId.getValue(), node.getNodeId().getValue());
 142             }
 143             for (DataObjectModification<OvsdbTerminationPointAugmentation> ovsdbTpModification : ovsdbTpModifications) {
 144                 OvsdbTerminationPointAugmentation newOvsdbTp = ovsdbTpModification.getDataAfter();
 145                 if (ovsdbBridge.getBridgeName().getValue().equals(newOvsdbTp.getName())) {
 146                     LOG.trace("Termination Point {} same as Bridge {}. Not processing", newOvsdbTp.getName(),
 147                             ovsdbBridge.getBridgeName().getValue());
 148                     continue;
 149                 }
 150                 String portName = newOvsdbTp.getName();
 151                 Long ofport = newOvsdbTp.getOfport();
 152                 if (isOfportOrNameChanged(ovsdbTpModification) && portName != null && ofport != null) {
 153                     NeutronBridgeWithExtPort bridge = getBridge(rootIdentifier);
 154                     bridge.ofportByName.put(ofport, portName);
 155                     LOG.trace("OVSDB termination point with ofport {} and port-name {} created.", ofport, portName);
 156                     // port name is same as provider port name so the termination point represents
 157                     // external port
 158                     if (portName.equals(providerPortNameByBridgeRef.get(new OvsdbBridgeRef(rootIdentifier)))) {
 159                         NodeConnectorId ofNcId = buildOfNodeConnectorId(newOvsdbTp, ofNodeId);
 160                         bridge.externalIfaces.add(ofNcId);
 161                         InventoryHelper.addOfOverlayExternalPort(bridge.ofNodeId, ofNcId, dataProvider);
 162                         LOG.debug("Added of-overlay external-interface {} to node {}", ofNcId.getValue(),
 163                                 bridge.ofNodeId);
 164                         traceBridge(rootIdentifier);
 165                     }
 166                 }
 167             }
 168         }
 169     }
 170
 171     @Override
 172     protected void onDelete(DataObjectModification<Node> rootNode, InstanceIdentifier<Node> rootIdentifier) {
 173         LOG.trace("Not implemented - OVSDB element deleted: {} \n {}", rootIdentifier, rootNode.getDataBefore());
 174     }
 175
 176     @Override
 177     protected void onSubtreeModified(DataObjectModification<Node> rootNode, InstanceIdentifier<Node> rootIdentifier) {
 178         Node node = rootNode.getDataAfter();
 179         OvsdbBridgeAugmentation ovsdbBridge = node.getAugmentation(OvsdbBridgeAugmentation.class);
 180         if (ovsdbBridge != null) {
 181             LOG.trace("OVSDB bridge updated: {} \n before {} \n after {}", rootIdentifier, rootNode.getDataBefore(),
 182                     rootNode.getDataAfter());
 183             Set<DataObjectModification<OvsdbTerminationPointAugmentation>> ovsdbTpModifications =
 184                     getOvsdbTpModifications(rootNode);
 185             NodeId ofNodeId = buildOfNodeId(ovsdbBridge);
 186             if (!ovsdbTpModifications.isEmpty() && ofNodeId != null) {
 187                 NeutronBridgeWithExtPort bridge = getBridge(rootIdentifier);
 188                 if (bridge.ofNodeId != null && !bridge.ofNodeId.equals(ofNodeId)) {
 189                     LOG.debug("OVSDB bridge {} has changed datapath-id. \n  Old: {} \n  New: {}",
 190                             node.getNodeId().getValue(), bridge.ofNodeId.getValue(), ofNodeId.getValue());
 191                     bridge.ofNodeId = ofNodeId;
 192                 }
 193             }
 194             for (DataObjectModification<OvsdbTerminationPointAugmentation> ovsdbTpModification : ovsdbTpModifications) {
 195                 OvsdbTerminationPointAugmentation newOvsdbTp = ovsdbTpModification.getDataAfter();
 196
 197                 if (newOvsdbTp == null) {
 198                     LOG.trace("Termination Point is null. Not processing");
 199                     continue;
 200                 }
 201
 202                 if (ovsdbBridge.getBridgeName().getValue().equals(newOvsdbTp.getName())) {
 203                     LOG.trace("Termination Point {} same as Bridge {}. Not processing", newOvsdbTp.getName(),
 204                             ovsdbBridge.getBridgeName().getValue());
 205                     continue;
 206                 }
 207                 String portName = newOvsdbTp.getName();
 208                 Long ofport = newOvsdbTp.getOfport();
 209                 if (isOfportOrNameChanged(ovsdbTpModification) && portName != null && ofport != null) {
 210                     NeutronBridgeWithExtPort bridge = getBridge(rootIdentifier);
 211                     bridge.ofportByName.put(ofport, portName);
 212                     LOG.trace("OVSDB termination point with ofport {} and port-name {} created.", ofport, portName);
 213                     // port name is same as provider port name so the termination point represents
 214                     // external port
 215                     if (portName.equals(providerPortNameByBridgeRef.get(new OvsdbBridgeRef(rootIdentifier)))) {
 216                         NodeConnectorId ofNcId = buildOfNodeConnectorId(newOvsdbTp, ofNodeId);
 217                         bridge.externalIfaces.add(ofNcId);
 218                         InventoryHelper.addOfOverlayExternalPort(bridge.ofNodeId, ofNcId, dataProvider);
 219                         LOG.debug("Added of-overlay external-interface {} to node {}", ofNcId.getValue(),
 220                                 bridge.ofNodeId);
 221                         traceBridge(rootIdentifier);
 222                     }
 223                 }
 224             }
 225         }
 226     }
 227
 228     private NeutronBridgeWithExtPort getBridge(InstanceIdentifier<Node> nodeIid) {
 229         NeutronBridgeWithExtPort bridge = bridgeByNodeIid.get(nodeIid);
 230         if (bridge == null) {
 231             bridge = new NeutronBridgeWithExtPort();
 232             bridgeByNodeIid.put(nodeIid, bridge);
 233         }
 234         return bridge;
 235     }
 236
 237     @SuppressWarnings("unchecked")
 238     private static Set<DataObjectModification<OvsdbTerminationPointAugmentation>> getOvsdbTpModifications(
 239             DataObjectModification<Node> rootNode) {
 240         Set<DataObjectModification<OvsdbTerminationPointAugmentation>> modifications = new HashSet<>();
 241         for (DataObjectModification<? extends DataObject> modifiedChild : rootNode.getModifiedChildren()) {
 242             if (TerminationPoint.class.isAssignableFrom(modifiedChild.getDataType())) {
 243                 DataObjectModification<OvsdbTerminationPointAugmentation> modifiedAugmentation =
 244                         ((DataObjectModification<TerminationPoint>) modifiedChild)
 245                             .getModifiedAugmentation(OvsdbTerminationPointAugmentation.class);
 246                 if (modifiedAugmentation != null) {
 247                     modifications.add(modifiedAugmentation);
 248                 }
 249             }
 250         }
 251         return modifications;
 252     }
 253
 254     private static boolean isOfportOrNameChanged(
 255             DataObjectModification<OvsdbTerminationPointAugmentation> ovsdbTpModification) {
 256         if (ovsdbTpModification == null) {
 257             return false;
 258         }
 259         OvsdbTerminationPointAugmentation oldTp = ovsdbTpModification.getDataBefore();
 260         OvsdbTerminationPointAugmentation newTp = ovsdbTpModification.getDataAfter();
 261         if (oldTp != null && newTp != null) {
 262             if (oldTp.getOfport() != null && newTp.getOfport() != null && !Objects.equals(oldTp.getOfport(),
 263                 newTp.getOfport())) {
 264                 return true;
 265             }
 266             if (!(Strings.nullToEmpty(oldTp.getName())).equals(Strings.nullToEmpty(newTp.getName()))) {
 267                 return true;
 268             }
 269         }
 270         if (isOfportOrNameNotNull(oldTp)) {
 271             return true;
 272         }
 273         if (isOfportOrNameNotNull(newTp)) {
 274             return true;
 275         }
 276         return false;
 277     }
 278
 279     private static boolean isOfportOrNameNotNull(OvsdbTerminationPointAugmentation tp) {
 280         if (tp != null) {
 281             if (tp.getOfport() != null) {
 282                 return true;
 283             }
 284             if (tp.getName() != null) {
 285                 return true;
 286             }
 287         }
 288         return false;
 289     }
 290
 291     private static DataObjectModification<OpenvswitchOtherConfigs> getProviderMappingsModification(
 292             DataObjectModification<Node> rootNode) {
 293         DataObjectModification<OvsdbNodeAugmentation> modifiedOvsdbNode =
 294                 rootNode.getModifiedAugmentation(OvsdbNodeAugmentation.class);
 295         if (modifiedOvsdbNode == null) {
 296             return null;
 297         }
 298         return modifiedOvsdbNode.getModifiedChildListItem(OpenvswitchOtherConfigs.class,
 299                 new OpenvswitchOtherConfigsKey(NEUTRON_PROVIDER_MAPPINGS_KEY));
 300     }
 301
 302     private static boolean isProviderPortNameChanged(DataObjectModification<OpenvswitchOtherConfigs> ovsConfig) {
 303         if (ovsConfig == null) {
 304             return false;
 305         }
 306         OpenvswitchOtherConfigs oldConfig = ovsConfig.getDataBefore();
 307         OpenvswitchOtherConfigs newConfig = ovsConfig.getDataAfter();
 308         if (oldConfig != null && newConfig != null) {
 309             if (!(Strings.nullToEmpty(oldConfig.getOtherConfigValue())
 310                 .equals(Strings.nullToEmpty(newConfig.getOtherConfigValue())))) {
 311                 return true;
 312             }
 313         } else if (oldConfig != null && !Strings.isNullOrEmpty(oldConfig.getOtherConfigValue())) {
 314             return true;
 315         } else if (newConfig != null && !Strings.isNullOrEmpty(newConfig.getOtherConfigValue())) {
 316             return true;
 317         }
 318         return false;
 319     }
 320
 321     private static @Nonnull String getProviderPortName(OpenvswitchOtherConfigs config) {
 322         if (NEUTRON_PROVIDER_MAPPINGS_KEY.equals(config.getOtherConfigKey()) && config.getOtherConfigValue() != null) {
 323             String otherConfig = config.getOtherConfigValue();
 324             String[] elements = otherConfig.split(":");
 325             if (elements.length == 2) {
 326                 return elements[1];
 327             }
 328         }
 329         return "";
 330     }
 331
 332     /**
 333      * Extracts IP address from URI
 334      *
 335      * @param uri in format protocol:ip:port
 336      * @return IPv4 or IPv6 address as {@link String}.
 337      */
 338     private static @Nonnull String getIpAddrFromUri(Uri uri) {
 339         String otherConfig = uri.getValue();
 340         String[] elements = otherConfig.split(":");
 341         // IPv6 expression also contains colons
 342         if (elements.length < 3) {
 343             return "";
 344         }
 345         StringBuilder sb = new StringBuilder();
 346         // first (protocol) and last (port) elements are filtered
 347         for (int i = 1; i < elements.length - 1; i++) {
 348             sb.append(elements[i]);
 349         }
 350         return sb.toString();
 351     }
 352
 353     private List<ControllerEntry> managerToControllerEntries(List<ManagerEntry> managerEntries) {
 354         return Lists.transform(managerEntries, new Function<ManagerEntry, ControllerEntry>() {
 355
 356             @Override
 357             public ControllerEntry apply(ManagerEntry managerEntry) {
 358                 String ipAddr = getIpAddrFromUri(managerEntry.getTarget());
 359                 Uri uri = new Uri(intBrSettings.getOpenflowProtocol() + OF_SEPARATOR + ipAddr + OF_SEPARATOR
 360                         + intBrSettings.getOpenflowPort());
 361                 return new ControllerEntryBuilder().setTarget(new Uri(uri)).build();
 362             }
 363         });
 364     }
 365
 366     private Node createBridge(InstanceIdentifier<Node> managedByIid, List<ControllerEntry> controllerEntries,
 367             String bridgeName) {
 368         OvsdbBridgeAugmentation br = new OvsdbBridgeAugmentationBuilder()
 369             .setBridgeName(new OvsdbBridgeName(bridgeName))
 370             .setManagedBy(new OvsdbNodeRef(managedByIid))
 371             .setControllerEntry(controllerEntries)
 372             .setDatapathType(DatapathTypeSystem.class)
 373             .setProtocolEntry(
 374                     ImmutableList.of(new ProtocolEntryBuilder().setProtocol(
 375                             OvsdbBridgeProtocolOpenflow13.class).build()))
 376             .build();
 377         NodeKey managerNodeKey = managedByIid.firstKeyOf(Node.class);
 378         return new NodeBuilder().setNodeId(
 379                 new org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId(
 380                         managerNodeKey.getNodeId().getValue() + BRIDGE_SEPARATOR + bridgeName))
 381             .addAugmentation(OvsdbBridgeAugmentation.class, br)
 382             .build();
 383     }
 384
 385     private static NodeId buildOfNodeId(OvsdbBridgeAugmentation ovsdbBridge) {
 386         if (ovsdbBridge.getDatapathId() == null) {
 387             return null;
 388         }
 389         Long macLong = InventoryHelper.getLongFromDpid(ovsdbBridge.getDatapathId().getValue());
 390         return new NodeId(OF_INVENTORY_PREFIX + OF_SEPARATOR + String.valueOf(macLong));
 391     }
 392
 393     private static NodeConnectorId buildOfNodeConnectorId(OvsdbTerminationPointAugmentation terminationPoint,
 394             NodeId nodeId) {
 395         if (terminationPoint.getOfport() == null) {
 396             return null;
 397         }
 398         return new NodeConnectorId(nodeId.getValue() + OF_SEPARATOR + String.valueOf(terminationPoint.getOfport()));
 399     }
 400
 401     private void traceBridge(InstanceIdentifier<Node> identifier) {
 402         if (LOG.isTraceEnabled()) {
 403             NeutronBridgeWithExtPort bridge = bridgeByNodeIid.get(identifier);
 404             if (bridge == null) {
 405                 LOG.trace("Bridge does not exist: {}", identifier);
 406                 return;
 407             }
 408             String providerPortName = providerPortNameByBridgeRef.get(new OvsdbBridgeRef(identifier));
 409             LOG.trace("State of bridge:\n  ID: {} \n  providerPortName: {} \n  {}", identifier, providerPortName,
 410                     bridge);
 411         }
 412     }
 413
 414     private class NeutronBridgeWithExtPort {
 415
 416         NodeId ofNodeId;
 417         Set<NodeConnectorId> externalIfaces = new HashSet<>();
 418         Map<Long, String> ofportByName = new HashMap<>();
 419
 420         @Override
 421         public String toString() {
 422             return "NeutronBridgeWithExtPort:\n  ofNodeId=" + ofNodeId + "\n  externalIfaces=" + externalIfaces
 423                     + ",\n  ofportByName=" + ofportByName;
 424         }
 425     }
 426
 427 }