southbound/southbound-impl/src/main/java/org/opendaylight/ovsdb/southbound/transactions/md/OvsdbBridgeUpdateCommand.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
   9 package org.opendaylight.ovsdb.southbound.transactions.md;
  10
  11 import static org.opendaylight.ovsdb.southbound.SouthboundUtil.schemaMismatchLog;
  12
  13 import com.google.common.base.Optional;
  14 import com.google.common.base.Preconditions;
  15 import com.google.common.net.InetAddresses;
  16 import java.net.InetAddress;
  17 import java.net.NetworkInterface;
  18 import java.net.SocketException;
  19 import java.util.ArrayList;
  20 import java.util.Enumeration;
  21 import java.util.List;
  22 import java.util.Map;
  23 import java.util.Map.Entry;
  24 import java.util.Set;
  25 import org.apache.commons.lang3.math.NumberUtils;
  26 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
  27 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  28 import org.opendaylight.ovsdb.lib.error.SchemaVersionMismatchException;
  29 import org.opendaylight.ovsdb.lib.message.TableUpdates;
  30 import org.opendaylight.ovsdb.lib.notation.UUID;
  31 import org.opendaylight.ovsdb.lib.schema.DatabaseSchema;
  32 import org.opendaylight.ovsdb.lib.schema.typed.TyperUtils;
  33 import org.opendaylight.ovsdb.schema.openvswitch.Bridge;
  34 import org.opendaylight.ovsdb.schema.openvswitch.Controller;
  35 import org.opendaylight.ovsdb.southbound.OvsdbConnectionInstance;
  36 import org.opendaylight.ovsdb.southbound.SouthboundConstants;
  37 import org.opendaylight.ovsdb.southbound.SouthboundMapper;
  38 import org.opendaylight.ovsdb.southbound.SouthboundUtil;
  39 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
  40 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.PortNumber;
  41 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.DatapathId;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeAugmentation;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeAugmentationBuilder;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeName;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeProtocolBase;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeRef;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbNodeAugmentation;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbNodeAugmentationBuilder;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbNodeRef;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.bridge.attributes.BridgeExternalIds;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.bridge.attributes.BridgeExternalIdsBuilder;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.bridge.attributes.BridgeExternalIdsKey;
  54 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.bridge.attributes.BridgeOtherConfigs;
  55 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.bridge.attributes.BridgeOtherConfigsBuilder;
  56 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.bridge.attributes.BridgeOtherConfigsKey;
  57 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.bridge.attributes.ControllerEntry;
  58 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.bridge.attributes.ProtocolEntry;
  59 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.bridge.attributes.ProtocolEntryKey;
  60 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.ManagedNodeEntry;
  61 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.ManagedNodeEntryBuilder;
  62 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
  63 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  64 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeBuilder;
  65 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeKey;
  66 import org.opendaylight.yangtools.yang.binding.DataObject;
  67 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  68 import org.slf4j.Logger;
  69 import org.slf4j.LoggerFactory;
  70
  71 public class OvsdbBridgeUpdateCommand extends AbstractTransactionCommand {
  72     private static final Logger LOG = LoggerFactory.getLogger(OvsdbBridgeUpdateCommand.class);
  73     private Map<UUID,Bridge> updatedBridgeRows;
  74     private Map<UUID, Bridge> oldBridgeRows;
  75
  76     public OvsdbBridgeUpdateCommand(OvsdbConnectionInstance key, TableUpdates updates,
  77             DatabaseSchema dbSchema) {
  78         super(key,updates,dbSchema);
  79         updatedBridgeRows = TyperUtils.extractRowsUpdated(Bridge.class, getUpdates(), getDbSchema());
  80         oldBridgeRows = TyperUtils.extractRowsOld(Bridge.class, getUpdates(), getDbSchema());
  81     }
  82
  83     @Override
  84     public void execute(ReadWriteTransaction transaction) {
  85         if (updatedBridgeRows == null || updatedBridgeRows.isEmpty()) {
  86             return;
  87         }
  88
  89         final InstanceIdentifier<Node> connectionIId = getOvsdbConnectionInstance().getInstanceIdentifier();
  90         Optional<Node> connection = SouthboundUtil.readNode(transaction, connectionIId);
  91         if (!connection.isPresent()) {
  92             return;
  93         }
  94
  95         for (Entry<UUID, Bridge> entry : updatedBridgeRows.entrySet()) {
  96             updateBridge(transaction, entry.getValue(), connectionIId);
  97         }
  98     }
  99
 100     private void updateBridge(ReadWriteTransaction transaction,
 101             Bridge bridge, InstanceIdentifier<Node> connectionIId) {
 102         // Update the connection node to let it know it manages this bridge
 103         Node connectionNode = buildConnectionNode(bridge);
 104         transaction.merge(LogicalDatastoreType.OPERATIONAL, connectionIId, connectionNode);
 105
 106         // Update the bridge node with whatever data we are getting
 107         InstanceIdentifier<Node> bridgeIid = getInstanceIdentifier(bridge);
 108         Node bridgeNode = buildBridgeNode(bridge);
 109         transaction.merge(LogicalDatastoreType.OPERATIONAL, bridgeIid, bridgeNode);
 110         deleteEntries(transaction, protocolEntriesToRemove(bridgeIid,bridge));
 111         deleteEntries(transaction, externalIdsToRemove(bridgeIid,bridge));
 112         deleteEntries(transaction, bridgeOtherConfigsToRemove(bridgeIid,bridge));
 113     }
 114
 115     private <T extends DataObject> void deleteEntries(ReadWriteTransaction transaction,
 116             List<InstanceIdentifier<T>> entryIids) {
 117         for (InstanceIdentifier<T> entryIid: entryIids) {
 118             transaction.delete(LogicalDatastoreType.OPERATIONAL, entryIid);
 119         }
 120     }
 121
 122     private List<InstanceIdentifier<BridgeOtherConfigs>> bridgeOtherConfigsToRemove(
 123             InstanceIdentifier<Node> bridgeIid, Bridge bridge) {
 124         Preconditions.checkNotNull(bridgeIid);
 125         Preconditions.checkNotNull(bridge);
 126         List<InstanceIdentifier<BridgeOtherConfigs>> result = new ArrayList<>();
 127
 128         Bridge oldBridge = oldBridgeRows.get(bridge.getUuid());
 129
 130         if (oldBridge != null && oldBridge.getOtherConfigColumn() != null) {
 131             for (Entry<String, String> otherConfig:
 132                 oldBridge.getOtherConfigColumn().getData().entrySet()) {
 133                 if (bridge.getOtherConfigColumn() == null
 134                         || !bridge.getOtherConfigColumn().getData().containsKey(otherConfig.getKey())) {
 135                     InstanceIdentifier<BridgeOtherConfigs> iid = bridgeIid
 136                             .augmentation(OvsdbBridgeAugmentation.class)
 137                             .child(BridgeOtherConfigs.class,
 138                                     new BridgeOtherConfigsKey(otherConfig.getKey()));
 139                     result.add(iid);
 140                 }
 141             }
 142         }
 143         return result;
 144     }
 145
 146     private List<InstanceIdentifier<BridgeExternalIds>> externalIdsToRemove(
 147             InstanceIdentifier<Node> bridgeIid, Bridge bridge) {
 148         Preconditions.checkNotNull(bridgeIid);
 149         Preconditions.checkNotNull(bridge);
 150         List<InstanceIdentifier<BridgeExternalIds>> result = new ArrayList<>();
 151
 152         Bridge oldBridge = oldBridgeRows.get(bridge.getUuid());
 153
 154         if (oldBridge != null && oldBridge.getExternalIdsColumn() != null) {
 155             for (Entry<String, String> externalId:
 156                 oldBridge.getExternalIdsColumn().getData().entrySet()) {
 157                 if (bridge.getExternalIdsColumn() == null
 158                         || !bridge.getExternalIdsColumn().getData().containsKey(externalId.getKey())) {
 159                     InstanceIdentifier<BridgeExternalIds> iid = bridgeIid
 160                             .augmentation(OvsdbBridgeAugmentation.class)
 161                             .child(BridgeExternalIds.class,
 162                                     new BridgeExternalIdsKey(externalId.getKey()));
 163                     result.add(iid);
 164                 }
 165             }
 166         }
 167         return result;
 168     }
 169
 170     private List<InstanceIdentifier<ProtocolEntry>> protocolEntriesToRemove(
 171             InstanceIdentifier<Node> bridgeIid, Bridge bridge) {
 172         Preconditions.checkNotNull(bridgeIid);
 173         Preconditions.checkNotNull(bridge);
 174         List<InstanceIdentifier<ProtocolEntry>> result = new ArrayList<>();
 175         Bridge oldBridge = oldBridgeRows.get(bridge.getUuid());
 176
 177         try {
 178             if (oldBridge != null && oldBridge.getProtocolsColumn() != null) {
 179                 for (String protocol : oldBridge.getProtocolsColumn().getData()) {
 180                     if (bridge.getProtocolsColumn() == null || !bridge.getProtocolsColumn().getData()
 181                                 .contains(protocol)) {
 182                         Class<? extends OvsdbBridgeProtocolBase> proto = SouthboundConstants.OVSDB_PROTOCOL_MAP
 183                                 .inverse().get(protocol);
 184                         InstanceIdentifier<ProtocolEntry> iid = bridgeIid
 185                                 .augmentation(OvsdbBridgeAugmentation.class)
 186                                 .child(ProtocolEntry.class,
 187                                         new ProtocolEntryKey(proto));
 188                         result.add(iid);
 189                     }
 190                 }
 191             }
 192         } catch (SchemaVersionMismatchException e) {
 193             schemaMismatchLog("protocols", "Bridge", e);
 194         }
 195         return result;
 196     }
 197
 198     private Node buildConnectionNode(
 199             Bridge bridge) {
 200         //Update node with managed node reference
 201         NodeBuilder connectionNode = new NodeBuilder();
 202         connectionNode.setNodeId(getOvsdbConnectionInstance().getNodeId());
 203
 204         OvsdbNodeAugmentationBuilder ovsdbConnectionAugmentationBuilder = new OvsdbNodeAugmentationBuilder();
 205         List<ManagedNodeEntry> managedBridges = new ArrayList<>();
 206         InstanceIdentifier<Node> bridgeIid = SouthboundMapper.createInstanceIdentifier(getOvsdbConnectionInstance(),
 207                 bridge);
 208         ManagedNodeEntry managedBridge = new ManagedNodeEntryBuilder().setBridgeRef(
 209                 new OvsdbBridgeRef(bridgeIid)).build();
 210         managedBridges.add(managedBridge);
 211         ovsdbConnectionAugmentationBuilder.setManagedNodeEntry(managedBridges);
 212
 213         connectionNode.addAugmentation(OvsdbNodeAugmentation.class, ovsdbConnectionAugmentationBuilder.build());
 214
 215         LOG.debug("Update node with bridge node ref {}",
 216                 ovsdbConnectionAugmentationBuilder.getManagedNodeEntry().iterator().next());
 217         return connectionNode.build();
 218     }
 219
 220     private Node buildBridgeNode(Bridge bridge) {
 221         NodeBuilder bridgeNodeBuilder = new NodeBuilder();
 222         NodeId bridgeNodeId = getNodeId(bridge);
 223         bridgeNodeBuilder.setNodeId(bridgeNodeId);
 224         OvsdbBridgeAugmentationBuilder ovsdbBridgeAugmentationBuilder = new OvsdbBridgeAugmentationBuilder();
 225         ovsdbBridgeAugmentationBuilder.setBridgeName(new OvsdbBridgeName(bridge.getName()));
 226         ovsdbBridgeAugmentationBuilder.setBridgeUuid(new Uuid(bridge.getUuid().toString()));
 227         setDataPath(ovsdbBridgeAugmentationBuilder, bridge);
 228         setDataPathType(ovsdbBridgeAugmentationBuilder, bridge);
 229         setProtocol(ovsdbBridgeAugmentationBuilder, bridge);
 230         setExternalIds(ovsdbBridgeAugmentationBuilder, bridge);
 231         setOtherConfig(ovsdbBridgeAugmentationBuilder, bridge);
 232         setFailMode(ovsdbBridgeAugmentationBuilder, bridge);
 233         setOpenFlowNodeRef(ovsdbBridgeAugmentationBuilder, bridge);
 234         setManagedBy(ovsdbBridgeAugmentationBuilder);
 235         setAutoAttach(ovsdbBridgeAugmentationBuilder, bridge);
 236         setStpEnalbe(ovsdbBridgeAugmentationBuilder,bridge);
 237         bridgeNodeBuilder.addAugmentation(OvsdbBridgeAugmentation.class, ovsdbBridgeAugmentationBuilder.build());
 238
 239         LOG.debug("Built with the intent to store bridge data {}",
 240                 ovsdbBridgeAugmentationBuilder.build());
 241         return bridgeNodeBuilder.build();
 242     }
 243
 244     private void setAutoAttach(OvsdbBridgeAugmentationBuilder ovsdbBridgeAugmentationBuilder,
 245             Bridge bridge) {
 246         try {
 247             if (bridge.getAutoAttachColumn() != null
 248                     && bridge.getAutoAttachColumn().getData() != null
 249                     && !bridge.getAutoAttachColumn().getData().isEmpty()) {
 250                 Set<UUID> uuids = bridge.getAutoAttachColumn().getData();
 251                 for (UUID uuid : uuids) {
 252                     ovsdbBridgeAugmentationBuilder.setAutoAttach(new Uuid(uuid.toString()));
 253                 }
 254             }
 255         } catch (SchemaVersionMismatchException e) {
 256             schemaMismatchLog("auto_attach", "Bridge", e);
 257         }
 258     }
 259
 260     private void setManagedBy(OvsdbBridgeAugmentationBuilder ovsdbBridgeAugmentationBuilder) {
 261         InstanceIdentifier<Node> connectionNodePath = getOvsdbConnectionInstance().getInstanceIdentifier();
 262         ovsdbBridgeAugmentationBuilder.setManagedBy(new OvsdbNodeRef(connectionNodePath));
 263     }
 264
 265     private void setDataPathType(OvsdbBridgeAugmentationBuilder ovsdbBridgeAugmentationBuilder,
 266             Bridge bridge) {
 267         ovsdbBridgeAugmentationBuilder.setDatapathType(
 268                 SouthboundMapper.createDatapathType(bridge.getDatapathTypeColumn().getData()));
 269     }
 270
 271     private void setFailMode(OvsdbBridgeAugmentationBuilder ovsdbBridgeAugmentationBuilder,
 272             Bridge bridge) {
 273         if (bridge.getFailModeColumn() != null
 274                 && bridge.getFailModeColumn().getData() != null
 275                 && !bridge.getFailModeColumn().getData().isEmpty()) {
 276             String[] failmodeArray = new String[bridge.getFailModeColumn().getData().size()];
 277             bridge.getFailModeColumn().getData().toArray(failmodeArray);
 278             ovsdbBridgeAugmentationBuilder.setFailMode(
 279                     SouthboundConstants.OVSDB_FAIL_MODE_MAP.inverse().get(failmodeArray[0]));
 280         }
 281     }
 282
 283     private void setOtherConfig(OvsdbBridgeAugmentationBuilder ovsdbBridgeAugmentationBuilder,
 284             Bridge bridge) {
 285         Map<String, String> otherConfigs = bridge
 286                 .getOtherConfigColumn().getData();
 287         if (otherConfigs != null && !otherConfigs.isEmpty()) {
 288             Set<String> otherConfigKeys = otherConfigs.keySet();
 289             List<BridgeOtherConfigs> otherConfigList = new ArrayList<>();
 290             String otherConfigValue;
 291             for (String otherConfigKey : otherConfigKeys) {
 292                 otherConfigValue = otherConfigs.get(otherConfigKey);
 293                 if (otherConfigKey != null && otherConfigValue != null) {
 294                     otherConfigList.add(new BridgeOtherConfigsBuilder()
 295                             .setBridgeOtherConfigKey(otherConfigKey)
 296                             .setBridgeOtherConfigValue(otherConfigValue)
 297                             .build());
 298                 }
 299             }
 300             ovsdbBridgeAugmentationBuilder.setBridgeOtherConfigs(otherConfigList);
 301         }
 302     }
 303
 304     private void setExternalIds(OvsdbBridgeAugmentationBuilder ovsdbBridgeAugmentationBuilder,
 305             Bridge bridge) {
 306         Map<String, String> externalIds = bridge.getExternalIdsColumn()
 307                 .getData();
 308         if (externalIds != null && !externalIds.isEmpty()) {
 309             Set<String> externalIdKeys = externalIds.keySet();
 310             List<BridgeExternalIds> externalIdsList = new ArrayList<>();
 311             String externalIdValue;
 312             for (String externalIdKey : externalIdKeys) {
 313                 externalIdValue = externalIds.get(externalIdKey);
 314                 if (externalIdKey != null && externalIdValue != null) {
 315                     externalIdsList.add(new BridgeExternalIdsBuilder()
 316                             .setBridgeExternalIdKey(externalIdKey)
 317                             .setBridgeExternalIdValue(externalIdValue)
 318                             .build());
 319                 }
 320             }
 321             ovsdbBridgeAugmentationBuilder.setBridgeExternalIds(externalIdsList);
 322         }
 323     }
 324
 325     private void setProtocol(OvsdbBridgeAugmentationBuilder ovsdbBridgeAugmentationBuilder,
 326             Bridge bridge) {
 327         if (SouthboundMapper.createMdsalProtocols(bridge) != null
 328                 && SouthboundMapper.createMdsalProtocols(bridge).size() > 0) {
 329             ovsdbBridgeAugmentationBuilder.setProtocolEntry(SouthboundMapper.createMdsalProtocols(bridge));
 330         }
 331     }
 332
 333     private void setDataPath(OvsdbBridgeAugmentationBuilder ovsdbBridgeAugmentationBuilder,
 334             Bridge bridge) {
 335         DatapathId dpid = SouthboundMapper.createDatapathId(bridge);
 336         if (dpid != null) {
 337             ovsdbBridgeAugmentationBuilder.setDatapathId(dpid);
 338         }
 339     }
 340
 341     private void setStpEnalbe(OvsdbBridgeAugmentationBuilder ovsdbBridgeAugmentationBuilder,
 342                               Bridge bridge) {
 343         if (bridge.getStpEnableColumn() != null) {
 344             Boolean stpEnable = bridge.getStpEnableColumn().getData();
 345             if (stpEnable != null) {
 346                 ovsdbBridgeAugmentationBuilder.setStpEnable(stpEnable);
 347             }
 348         }
 349     }
 350
 351     private void setOpenFlowNodeRef(OvsdbBridgeAugmentationBuilder ovsdbBridgeAugmentationBuilder,
 352             Bridge bridge) {
 353         Map<UUID, Controller> updatedControllerRows =
 354                 TyperUtils.extractRowsUpdated(Controller.class, getUpdates(), getDbSchema());
 355         LOG.debug("setOpenFlowNodeRef: updatedControllerRows: {}", updatedControllerRows);
 356         for (ControllerEntry controllerEntry: SouthboundMapper.createControllerEntries(bridge, updatedControllerRows)) {
 357             if (controllerEntry != null
 358                 && controllerEntry.isIsConnected() != null && controllerEntry.isIsConnected()) {
 359                 String [] controllerTarget = controllerEntry.getTarget().getValue().split(":");
 360                 IpAddress bridgeControllerIpAddress = null;
 361                 PortNumber bridgeControllerPortNumber = null;
 362                 for (String targetElement : controllerTarget) {
 363                     if (InetAddresses.isInetAddress(targetElement)) {
 364                         bridgeControllerIpAddress = new IpAddress(targetElement.toCharArray());
 365                         continue;
 366                     }
 367                     if (NumberUtils.isNumber(targetElement)) {
 368                         bridgeControllerPortNumber = new PortNumber(
 369                                 Integer.valueOf(String.valueOf(targetElement)));
 370                         continue;
 371                     }
 372                 }
 373                 try {
 374                     Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();
 375                 networkInterfacesLoop:
 376                     while (networkInterfaces.hasMoreElements()) {
 377                         NetworkInterface networkInterface = networkInterfaces.nextElement();
 378                         Enumeration<InetAddress> networkInterfaceAddresses = networkInterface.getInetAddresses();
 379                         while (networkInterfaceAddresses.hasMoreElements()) {
 380                             InetAddress networkInterfaceAddress = networkInterfaceAddresses.nextElement();
 381                             if (bridgeControllerIpAddress.getIpv4Address().getValue()
 382                                     .equals(networkInterfaceAddress.getHostAddress())) {
 383                                 ovsdbBridgeAugmentationBuilder.setBridgeOpenflowNodeRef(
 384                                         getOvsdbConnectionInstance().getInstanceIdentifier());
 385                                 break networkInterfacesLoop;
 386                             }
 387                         }
 388                     }
 389                 } catch (SocketException e) {
 390                     LOG.warn("Error getting local ip address", e);
 391                 }
 392             }
 393         }
 394     }
 395
 396     private InstanceIdentifier<Node> getInstanceIdentifier(Bridge bridge) {
 397         return SouthboundMapper.createInstanceIdentifier(getOvsdbConnectionInstance(),
 398                 bridge);
 399     }
 400
 401     private NodeId getNodeId(Bridge bridge) {
 402         NodeKey nodeKey = getInstanceIdentifier(bridge).firstKeyOf(Node.class, NodeKey.class);
 403         return nodeKey.getNodeId();
 404     }
 405 }