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 java.util.ArrayList;
  11 import java.util.Arrays;
  12 import java.util.Collection;
  13 import java.util.Collections;
  14 import java.util.HashMap;
  15 import java.util.HashSet;
  16 import java.util.List;
  17 import java.util.Map;
  18 import java.util.Set;
  19
  20 import javax.annotation.Nonnull;
  21
  22 import org.opendaylight.controller.config.yang.config.neutron_ovsdb.impl.IntegrationBridgeSetting;
  23 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  24 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification;
  25 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
  26 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  27 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  28 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
  29 import org.opendaylight.groupbasedpolicy.neutron.ovsdb.util.InventoryHelper;
  30 import org.opendaylight.groupbasedpolicy.neutron.ovsdb.util.NeutronOvsdbIidFactory;
  31 import org.opendaylight.groupbasedpolicy.neutron.ovsdb.util.OvsdbHelper;
  32 import org.opendaylight.groupbasedpolicy.util.DataStoreHelper;
  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.rev100924.Uri;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.SubnetId;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.forwarding.context.Subnet;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.DatapathTypeBase;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.DatapathTypeSystem;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeAugmentation;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeAugmentationBuilder;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeName;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeProtocolOpenflow13;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeRef;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbFailModeSecure;
  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.OvsdbNodeRef;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbTerminationPointAugmentation;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.bridge.attributes.ControllerEntry;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.bridge.attributes.ControllerEntryBuilder;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.bridge.attributes.ControllerEntryKey;
  54 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.bridge.attributes.ProtocolEntry;
  55 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.bridge.attributes.ProtocolEntryBuilder;
  56 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.ManagedNodeEntry;
  57 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.ManagerEntry;
  58 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.OpenvswitchOtherConfigs;
  59 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.OpenvswitchOtherConfigsKey;
  60 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
  61 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
  62 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
  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.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPoint;
  67 import org.opendaylight.yangtools.yang.binding.DataObject;
  68 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  69 import org.opendaylight.yangtools.yang.binding.KeyedInstanceIdentifier;
  70 import org.slf4j.Logger;
  71 import org.slf4j.LoggerFactory;
  72
  73 import com.google.common.base.Function;
  74 import com.google.common.base.Predicate;
  75 import com.google.common.base.Predicates;
  76 import com.google.common.base.Strings;
  77 import com.google.common.collect.Collections2;
  78 import com.google.common.collect.ImmutableList;
  79 import com.google.common.collect.Lists;
  80 import com.google.common.util.concurrent.CheckedFuture;
  81 import com.google.common.util.concurrent.FutureCallback;
  82 import com.google.common.util.concurrent.Futures;
  83
  84 public class OvsdbNodeListener extends DataTreeChangeHandler<Node> {
  85
  86     private static final Logger LOG = LoggerFactory.getLogger(OvsdbNodeListener.class);
  87     public static final String NEUTRON_PROVIDER_MAPPINGS_KEY = "provider_mappings";
  88     private static final String OF_SEPARATOR = ":";
  89     private static final String OF_INVENTORY_PREFIX = "openflow";
  90     private static final String BRIDGE_SEPARATOR = "/bridge/";
  91     private static IntegrationBridgeSetting intBrSettings;
  92
  93     private final Map<OvsdbBridgeRef, String> providerPortNameByBridgeRef = new HashMap<>();
  94     private final Map<InstanceIdentifier<Node>, NeutronBridgeWithExtPort> bridgeByNodeIid = new HashMap<>();
  95
  96     public OvsdbNodeListener(DataBroker dataProvider, IntegrationBridgeSetting brSettings) {
  97         super(dataProvider,
  98                 new DataTreeIdentifier<>(LogicalDatastoreType.OPERATIONAL,
  99                         InstanceIdentifier.create(NetworkTopology.class)
 100                             .child(Topology.class, new TopologyKey(SouthboundConstants.OVSDB_TOPOLOGY_ID))
 101                             .child(Node.class)));
 102         intBrSettings = brSettings;
 103     }
 104
 105     @Override
 106     protected void onWrite(DataObjectModification<Node> rootNode, InstanceIdentifier<Node> rootIdentifier) {
 107         Node node = rootNode.getDataAfter();
 108         OvsdbNodeAugmentation ovsdbNode = node.getAugmentation(OvsdbNodeAugmentation.class);
 109         if (ovsdbNode != null) {
 110             LOG.trace("OVSDB node created: {} \n {}", rootIdentifier, node);
 111             DataObjectModification<OpenvswitchOtherConfigs> ovsOtherConfigModification = getProviderMappingsModification(rootNode);
 112             boolean integrationBridgePresent = false;
 113             if (isProviderPortNameChanged(ovsOtherConfigModification) && ovsdbNode.getManagedNodeEntry() != null) {
 114                 String newProviderPortName = getProviderPortName(ovsOtherConfigModification.getDataAfter());
 115                 LOG.debug("provider_mappings created {} on node {}", newProviderPortName, node.getNodeId().getValue());
 116                 for (ManagedNodeEntry mngdNodeEntry : ovsdbNode.getManagedNodeEntry()) {
 117                     OvsdbBridgeRef bridgeRef = mngdNodeEntry.getBridgeRef();
 118                     providerPortNameByBridgeRef.put(bridgeRef, newProviderPortName);
 119                     LOG.trace("Added Provider port name {} by OVSDB bridge ref {}", newProviderPortName,
 120                             mngdNodeEntry.getBridgeRef());
 121                     NodeKey managedNodeKey = bridgeRef.getValue().firstKeyOf(Node.class);
 122                     if (intBrSettings != null && managedNodeKey.getNodeId().getValue().equals(intBrSettings.getName())) {
 123                         integrationBridgePresent = true;
 124                     }
 125                 }
 126             }
 127             if (intBrSettings != null && integrationBridgePresent == false) {
 128                 final Node bridge = createBridge(rootIdentifier,
 129                         managerToControllerEntries(ovsdbNode.getManagerEntry()), intBrSettings.getName());
 130                 InstanceIdentifier<Node> bridgeNodeIid = NeutronOvsdbIidFactory.nodeIid(
 131                         rootIdentifier.firstKeyOf(Topology.class).getTopologyId(), bridge.getNodeId());
 132                 WriteTransaction wTx = dataProvider.newWriteOnlyTransaction();
 133                 wTx.merge(LogicalDatastoreType.CONFIGURATION, bridgeNodeIid, bridge, true);
 134                 Futures.addCallback(wTx.submit(), new FutureCallback<Void>() {
 135
 136                     @Override
 137                     public void onSuccess(Void result) {
 138                         LOG.info("Bridge {} written to datastore." + bridge.getNodeId().getValue());
 139                     }
 140
 141                     @Override
 142                     public void onFailure(Throwable t) {
 143                         LOG.error("Failed to write bridge {}. Message: {}" + bridge.getNodeId().getValue(),
 144                                 t.getMessage());
 145                     }
 146                 });
 147             }
 148         }
 149         OvsdbBridgeAugmentation ovsdbBridge = node.getAugmentation(OvsdbBridgeAugmentation.class);
 150         if (ovsdbBridge != null) {
 151             LOG.trace("OVSDB bridge created: {} \n {}", rootIdentifier, node);
 152             Set<DataObjectModification<OvsdbTerminationPointAugmentation>> ovsdbTpModifications =
 153                     getOvsdbTpModifications(rootNode);
 154             NodeId ofNodeId = buildOfNodeId(ovsdbBridge);
 155             if (!ovsdbTpModifications.isEmpty() && ofNodeId != null) {
 156                 NeutronBridgeWithExtPort bridge = getBridge(rootIdentifier);
 157                 bridge.ofNodeId = ofNodeId;
 158                 LOG.trace("OF node {} representing OVSDB bridge {}", ofNodeId.getValue(), node.getNodeId().getValue());
 159             }
 160             for (DataObjectModification<OvsdbTerminationPointAugmentation> ovsdbTpModification : ovsdbTpModifications) {
 161                 OvsdbTerminationPointAugmentation newOvsdbTp = ovsdbTpModification.getDataAfter();
 162                 if (ovsdbBridge.getBridgeName().getValue().equals(newOvsdbTp.getName())) {
 163                     LOG.trace("Termination Point {} same as Bridge {}. Not processing", newOvsdbTp.getName(),
 164                             ovsdbBridge.getBridgeName().getValue());
 165                     continue;
 166                 }
 167                 String portName = newOvsdbTp.getName();
 168                 Long ofport = newOvsdbTp.getOfport();
 169                 if (isOfportOrNameChanged(ovsdbTpModification) && portName != null && ofport != null) {
 170                     NeutronBridgeWithExtPort bridge = getBridge(rootIdentifier);
 171                     bridge.ofportByName.put(ofport, portName);
 172                     LOG.trace("OVSDB termination point with ofport {} and port-name {} created.", ofport, portName);
 173                     // port name is same as provider port name so the termination point represents
 174                     // external port
 175                     if (portName.equals(providerPortNameByBridgeRef.get(new OvsdbBridgeRef(rootIdentifier)))) {
 176                         NodeConnectorId ofNcId = buildOfNodeConnectorId(newOvsdbTp, ofNodeId);
 177                         bridge.externalIfaces.add(ofNcId);
 178                         InventoryHelper.addOfOverlayExternalPort(bridge.ofNodeId, ofNcId, dataProvider);
 179                         LOG.debug("Added of-overlay external-interface {} to node {}", ofNcId.getValue(),
 180                                 bridge.ofNodeId);
 181                         traceBridge(rootIdentifier);
 182                     }
 183                 }
 184             }
 185         }
 186     }
 187
 188     @Override
 189     protected void onDelete(DataObjectModification<Node> rootNode, InstanceIdentifier<Node> rootIdentifier) {
 190         LOG.trace("Not implemented - OVSDB element deleted: {} \n {}", rootIdentifier, rootNode.getDataBefore());
 191     }
 192
 193     @Override
 194     protected void onSubtreeModified(DataObjectModification<Node> rootNode, InstanceIdentifier<Node> rootIdentifier) {
 195         Node node = rootNode.getDataAfter();
 196         OvsdbBridgeAugmentation ovsdbBridge = node.getAugmentation(OvsdbBridgeAugmentation.class);
 197         if (ovsdbBridge != null) {
 198             LOG.trace("OVSDB bridge updated: {} \n before {} \n after {}", rootIdentifier, rootNode.getDataBefore(),
 199                     rootNode.getDataAfter());
 200             Set<DataObjectModification<OvsdbTerminationPointAugmentation>> ovsdbTpModifications =
 201                     getOvsdbTpModifications(rootNode);
 202             NodeId ofNodeId = buildOfNodeId(ovsdbBridge);
 203             if (!ovsdbTpModifications.isEmpty() && ofNodeId != null) {
 204                 NeutronBridgeWithExtPort bridge = getBridge(rootIdentifier);
 205                 if (bridge.ofNodeId != null && !bridge.ofNodeId.equals(ofNodeId)) {
 206                     LOG.debug("OVSDB bridge {} has changed datapath-id. \n  Old: {} \n  New: {}",
 207                             node.getNodeId().getValue(), bridge.ofNodeId.getValue(), ofNodeId.getValue());
 208                     bridge.ofNodeId = ofNodeId;
 209                 }
 210             }
 211             for (DataObjectModification<OvsdbTerminationPointAugmentation> ovsdbTpModification : ovsdbTpModifications) {
 212                 OvsdbTerminationPointAugmentation newOvsdbTp = ovsdbTpModification.getDataAfter();
 213
 214                 if (newOvsdbTp == null) {
 215                     LOG.trace("Termination Point is null. Not processing");
 216                     continue;
 217                 }
 218
 219                 if (ovsdbBridge.getBridgeName().getValue().equals(newOvsdbTp.getName())) {
 220                     LOG.trace("Termination Point {} same as Bridge {}. Not processing", newOvsdbTp.getName(),
 221                             ovsdbBridge.getBridgeName().getValue());
 222                     continue;
 223                 }
 224                 String portName = newOvsdbTp.getName();
 225                 Long ofport = newOvsdbTp.getOfport();
 226                 if (isOfportOrNameChanged(ovsdbTpModification) && portName != null && ofport != null) {
 227                     NeutronBridgeWithExtPort bridge = getBridge(rootIdentifier);
 228                     bridge.ofportByName.put(ofport, portName);
 229                     LOG.trace("OVSDB termination point with ofport {} and port-name {} created.", ofport, portName);
 230                     // port name is same as provider port name so the termination point represents
 231                     // external port
 232                     if (portName.equals(providerPortNameByBridgeRef.get(new OvsdbBridgeRef(rootIdentifier)))) {
 233                         NodeConnectorId ofNcId = buildOfNodeConnectorId(newOvsdbTp, ofNodeId);
 234                         bridge.externalIfaces.add(ofNcId);
 235                         InventoryHelper.addOfOverlayExternalPort(bridge.ofNodeId, ofNcId, dataProvider);
 236                         LOG.debug("Added of-overlay external-interface {} to node {}", ofNcId.getValue(),
 237                                 bridge.ofNodeId);
 238                         traceBridge(rootIdentifier);
 239                     }
 240                 }
 241             }
 242         }
 243     }
 244
 245     private NeutronBridgeWithExtPort getBridge(InstanceIdentifier<Node> nodeIid) {
 246         NeutronBridgeWithExtPort bridge = bridgeByNodeIid.get(nodeIid);
 247         if (bridge == null) {
 248             bridge = new NeutronBridgeWithExtPort();
 249             bridgeByNodeIid.put(nodeIid, bridge);
 250         }
 251         return bridge;
 252     }
 253
 254     @SuppressWarnings("unchecked")
 255     private static Set<DataObjectModification<OvsdbTerminationPointAugmentation>> getOvsdbTpModifications(
 256             DataObjectModification<Node> rootNode) {
 257         Set<DataObjectModification<OvsdbTerminationPointAugmentation>> modifications = new HashSet<>();
 258         for (DataObjectModification<? extends DataObject> modifiedChild : rootNode.getModifiedChildren()) {
 259             if (TerminationPoint.class.isAssignableFrom(modifiedChild.getDataType())) {
 260                 DataObjectModification<OvsdbTerminationPointAugmentation> modifiedAugmentation =
 261                         ((DataObjectModification<TerminationPoint>) modifiedChild)
 262                             .getModifiedAugmentation(OvsdbTerminationPointAugmentation.class);
 263                 if (modifiedAugmentation != null) {
 264                     modifications.add(modifiedAugmentation);
 265                 }
 266             }
 267         }
 268         return modifications;
 269     }
 270
 271     private static boolean isOfportOrNameChanged(
 272             DataObjectModification<OvsdbTerminationPointAugmentation> ovsdbTpModification) {
 273         if (ovsdbTpModification == null) {
 274             return false;
 275         }
 276         OvsdbTerminationPointAugmentation oldTp = ovsdbTpModification.getDataBefore();
 277         OvsdbTerminationPointAugmentation newTp = ovsdbTpModification.getDataAfter();
 278         if (oldTp != null && newTp != null) {
 279             if (oldTp.getOfport() != null && newTp.getOfport() != null && oldTp.getOfport() != newTp.getOfport()) {
 280                 return true;
 281             }
 282             if (!(Strings.nullToEmpty(oldTp.getName())).equals(Strings.nullToEmpty(newTp.getName()))) {
 283                 return true;
 284             }
 285         }
 286         if (isOfportOrNameNotNull(oldTp)) {
 287             return true;
 288         }
 289         if (isOfportOrNameNotNull(newTp)) {
 290             return true;
 291         }
 292         return false;
 293     }
 294
 295     private static boolean isOfportOrNameNotNull(OvsdbTerminationPointAugmentation tp) {
 296         if (tp != null) {
 297             if (tp.getOfport() != null) {
 298                 return true;
 299             }
 300             if (tp.getName() != null) {
 301                 return true;
 302             }
 303         }
 304         return false;
 305     }
 306
 307     private static DataObjectModification<OpenvswitchOtherConfigs> getProviderMappingsModification(
 308             DataObjectModification<Node> rootNode) {
 309         DataObjectModification<OvsdbNodeAugmentation> modifiedOvsdbNode =
 310                 rootNode.getModifiedAugmentation(OvsdbNodeAugmentation.class);
 311         if (modifiedOvsdbNode == null) {
 312             return null;
 313         }
 314         return modifiedOvsdbNode.getModifiedChildListItem(OpenvswitchOtherConfigs.class,
 315                 new OpenvswitchOtherConfigsKey(NEUTRON_PROVIDER_MAPPINGS_KEY));
 316     }
 317
 318     private static boolean isProviderPortNameChanged(DataObjectModification<OpenvswitchOtherConfigs> ovsConfig) {
 319         if (ovsConfig == null) {
 320             return false;
 321         }
 322         OpenvswitchOtherConfigs oldConfig = ovsConfig.getDataBefore();
 323         OpenvswitchOtherConfigs newConfig = ovsConfig.getDataAfter();
 324         if (oldConfig != null && newConfig != null) {
 325             if (!(Strings.nullToEmpty(oldConfig.getOtherConfigValue())
 326                 .equals(Strings.nullToEmpty(newConfig.getOtherConfigValue())))) {
 327                 return true;
 328             }
 329         } else if (oldConfig != null && !Strings.isNullOrEmpty(oldConfig.getOtherConfigValue())) {
 330             return true;
 331         } else if (newConfig != null && !Strings.isNullOrEmpty(newConfig.getOtherConfigValue())) {
 332             return true;
 333         }
 334         return false;
 335     }
 336
 337     private static @Nonnull String getProviderPortName(OpenvswitchOtherConfigs config) {
 338         if (NEUTRON_PROVIDER_MAPPINGS_KEY.equals(config.getOtherConfigKey()) && config.getOtherConfigValue() != null) {
 339             String otherConfig = config.getOtherConfigValue();
 340             String[] elements = otherConfig.split(":");
 341             if (elements.length == 2) {
 342                 return elements[1];
 343             }
 344         }
 345         return "";
 346     }
 347
 348     /**
 349      * Extracts IP address from URI
 350      *
 351      * @param uri in format protocol:ip:port
 352      * @return IPv4 or IPv6 address as {@link String}.
 353      */
 354     private static @Nonnull String getIpAddrFromUri(Uri uri) {
 355         String otherConfig = uri.getValue();
 356         String[] elements = otherConfig.split(":");
 357         // IPv6 expression also contains colons
 358         if (elements.length < 3) {
 359             return "";
 360         }
 361         StringBuilder sb = new StringBuilder();
 362         // first (protocol) and last (port) elements are filtered
 363         for (int i = 1; i < elements.length - 1; i++) {
 364             sb.append(elements[i]);
 365         }
 366         return sb.toString();
 367     }
 368
 369     private List<ControllerEntry> managerToControllerEntries(List<ManagerEntry> managerEntries) {
 370         return Lists.transform(managerEntries, new Function<ManagerEntry, ControllerEntry>() {
 371
 372             @Override
 373             public ControllerEntry apply(ManagerEntry managerEntry) {
 374                 String ipAddr = getIpAddrFromUri(managerEntry.getTarget());
 375                 Uri uri = new Uri(intBrSettings.getOpenflowProtocol() + OF_SEPARATOR + ipAddr + OF_SEPARATOR
 376                         + intBrSettings.getOpenflowPort());
 377                 return new ControllerEntryBuilder().setTarget(new Uri(uri)).build();
 378             }
 379         });
 380     }
 381
 382     private Node createBridge(InstanceIdentifier<Node> managedByIid, List<ControllerEntry> controllerEntries,
 383             String bridgeName) {
 384         OvsdbBridgeAugmentation br = new OvsdbBridgeAugmentationBuilder()
 385             .setBridgeName(new OvsdbBridgeName(bridgeName))
 386             .setManagedBy(new OvsdbNodeRef(managedByIid))
 387             .setControllerEntry(controllerEntries)
 388             .setDatapathType(DatapathTypeSystem.class)
 389             .setProtocolEntry(
 390                     ImmutableList.<ProtocolEntry>of(new ProtocolEntryBuilder().setProtocol(
 391                             OvsdbBridgeProtocolOpenflow13.class).build()))
 392             .build();
 393         NodeKey managerNodeKey = managedByIid.firstKeyOf(Node.class);
 394         return new NodeBuilder().setNodeId(
 395                 new org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId(
 396                         managerNodeKey.getNodeId().getValue() + BRIDGE_SEPARATOR + bridgeName))
 397             .addAugmentation(OvsdbBridgeAugmentation.class, br)
 398             .build();
 399     }
 400
 401     private static NodeId buildOfNodeId(OvsdbBridgeAugmentation ovsdbBridge) {
 402         if (ovsdbBridge.getDatapathId() == null) {
 403             return null;
 404         }
 405         Long macLong = InventoryHelper.getLongFromDpid(ovsdbBridge.getDatapathId().getValue());
 406         return new NodeId(OF_INVENTORY_PREFIX + OF_SEPARATOR + String.valueOf(macLong));
 407     }
 408
 409     private static NodeConnectorId buildOfNodeConnectorId(OvsdbTerminationPointAugmentation terminationPoint,
 410             NodeId nodeId) {
 411         if (terminationPoint.getOfport() == null) {
 412             return null;
 413         }
 414         return new NodeConnectorId(nodeId.getValue() + OF_SEPARATOR + String.valueOf(terminationPoint.getOfport()));
 415     }
 416
 417     private void traceBridge(InstanceIdentifier<Node> identifier) {
 418         if (LOG.isTraceEnabled()) {
 419             NeutronBridgeWithExtPort bridge = bridgeByNodeIid.get(identifier);
 420             if (bridge == null) {
 421                 LOG.trace("Bridge does not exist: {}", identifier);
 422                 return;
 423             }
 424             String providerPortName = providerPortNameByBridgeRef.get(new OvsdbBridgeRef(identifier));
 425             LOG.trace("State of bridge:\n  ID: {} \n  providerPortName: {} \n  {}", identifier, providerPortName,
 426                     bridge);
 427         }
 428     }
 429
 430     private class NeutronBridgeWithExtPort {
 431
 432         NodeId ofNodeId;
 433         Set<NodeConnectorId> externalIfaces = new HashSet<>();
 434         Map<Long, String> ofportByName = new HashMap<>();
 435
 436         @Override
 437         public String toString() {
 438             return "NeutronBridgeWithExtPort:\n  ofNodeId=" + ofNodeId + "\n  externalIfaces=" + externalIfaces
 439                     + ",\n  ofportByName=" + ofportByName;
 440         }
 441     }
 442
 443 }