southbound/southbound-impl/src/main/java/org/opendaylight/ovsdb/southbound/SouthboundMapper.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.ovsdb.southbound;
   9
  10 import static org.opendaylight.ovsdb.southbound.SouthboundUtil.schemaMismatchLog;
  11
  12 import com.google.common.base.Joiner;
  13 import com.google.common.base.Preconditions;
  14 import com.google.common.base.Splitter;
  15 import com.google.common.collect.ImmutableBiMap;
  16 import com.google.common.net.InetAddresses;
  17 import java.net.Inet4Address;
  18 import java.net.Inet6Address;
  19 import java.net.InetAddress;
  20 import java.net.UnknownHostException;
  21 import java.util.ArrayList;
  22 import java.util.HashMap;
  23 import java.util.HashSet;
  24 import java.util.List;
  25 import java.util.Map;
  26 import java.util.Set;
  27 import org.opendaylight.ovsdb.lib.OvsdbClient;
  28 import org.opendaylight.ovsdb.lib.error.SchemaVersionMismatchException;
  29 import org.opendaylight.ovsdb.lib.notation.UUID;
  30 import org.opendaylight.ovsdb.lib.schema.DatabaseSchema;
  31 import org.opendaylight.ovsdb.lib.schema.typed.TypedDatabaseSchema;
  32 import org.opendaylight.ovsdb.schema.openvswitch.Bridge;
  33 import org.opendaylight.ovsdb.schema.openvswitch.Controller;
  34 import org.opendaylight.ovsdb.schema.openvswitch.Manager;
  35 import org.opendaylight.ovsdb.schema.openvswitch.OpenVSwitch;
  36 import org.opendaylight.ovsdb.schema.openvswitch.Qos;
  37 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IetfInetUtil;
  38 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
  39 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Address;
  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.inet.types.rev130715.Uri;
  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.DatapathTypeBase;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.DatapathTypeSystem;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.InterfaceTypeBase;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeAugmentation;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeProtocolBase;
  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.OvsdbTerminationPointAugmentation;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.QosTypeBase;
  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.ProtocolEntry;
  54 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.bridge.attributes.ProtocolEntryBuilder;
  55 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.ConnectionInfo;
  56 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.ConnectionInfoBuilder;
  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.ManagerEntryBuilder;
  59 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
  60 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
  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.NodeKey;
  65 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPoint;
  66 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPointKey;
  67 import org.opendaylight.yangtools.yang.binding.DataObject;
  68 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  69 import org.slf4j.Logger;
  70 import org.slf4j.LoggerFactory;
  71
  72 public final class SouthboundMapper {
  73     private static final Logger LOG = LoggerFactory.getLogger(SouthboundMapper.class);
  74     private static final String N_CONNECTIONS_STR = "n_connections";
  75
  76     private SouthboundMapper() {
  77
  78     }
  79
  80     public static IpAddress createIpAddress(final InetAddress address) {
  81         IpAddress ip = null;
  82         if (address instanceof Inet4Address) {
  83             ip = createIpAddress((Inet4Address)address);
  84         } else if (address instanceof Inet6Address) {
  85             ip = createIpAddress((Inet6Address)address);
  86         }
  87         return ip;
  88     }
  89
  90     public static IpAddress createIpAddress(final Inet4Address address) {
  91         return IetfInetUtil.INSTANCE.ipAddressFor(address);
  92     }
  93
  94     public static IpAddress createIpAddress(final Inet6Address address) {
  95         Ipv6Address ipv6 = new Ipv6Address(address.getHostAddress());
  96         return new IpAddress(ipv6);
  97     }
  98
  99     public static InstanceIdentifier<Topology> createTopologyInstanceIdentifier() {
 100         return InstanceIdentifier
 101                 .create(NetworkTopology.class)
 102                 .child(Topology.class, new TopologyKey(SouthboundConstants.OVSDB_TOPOLOGY_ID));
 103     }
 104
 105     public static InstanceIdentifier<Node> createInstanceIdentifier(final NodeId nodeId) {
 106         return createTopologyInstanceIdentifier()
 107                 .child(Node.class,new NodeKey(nodeId));
 108     }
 109
 110     @SuppressWarnings("unchecked")
 111     public static InstanceIdentifier<Node> createInstanceIdentifier(
 112             final InstanceIdentifierCodec instanceIdentifierCodec, final OvsdbConnectionInstance client,
 113             final Bridge bridge) {
 114         InstanceIdentifier<Node> iid;
 115         if (bridge.getExternalIdsColumn() != null
 116                 && bridge.getExternalIdsColumn().getData() != null
 117                 && bridge.getExternalIdsColumn().getData().containsKey(SouthboundConstants.IID_EXTERNAL_ID_KEY)) {
 118             String iidString = bridge.getExternalIdsColumn().getData().get(SouthboundConstants.IID_EXTERNAL_ID_KEY);
 119             iid = (InstanceIdentifier<Node>) instanceIdentifierCodec.bindingDeserializerOrNull(iidString);
 120         } else {
 121             iid = createInstanceIdentifier(client, bridge.getName());
 122         }
 123         return iid;
 124     }
 125
 126     @SuppressWarnings("unchecked")
 127     public static InstanceIdentifier<Node> createInstanceIdentifier(
 128             final InstanceIdentifierCodec instanceIdentifierCodec, final OvsdbConnectionInstance client,
 129             final Controller controller, final String bridgeName) {
 130         InstanceIdentifier<Node> iid;
 131         if (controller.getExternalIdsColumn() != null
 132                 && controller.getExternalIdsColumn().getData() != null
 133                 && controller.getExternalIdsColumn().getData().containsKey(SouthboundConstants.IID_EXTERNAL_ID_KEY)) {
 134             String iidString = controller.getExternalIdsColumn().getData().get(SouthboundConstants.IID_EXTERNAL_ID_KEY);
 135             iid = (InstanceIdentifier<Node>) instanceIdentifierCodec.bindingDeserializerOrNull(iidString);
 136         } else {
 137             iid = createInstanceIdentifier(client, bridgeName);
 138         }
 139         return iid;
 140     }
 141
 142     public static InstanceIdentifier<Node> createInstanceIdentifier(
 143             final OvsdbConnectionInstance client, final String bridgeName) {
 144         String nodeString = client.getNodeKey().getNodeId().getValue()
 145                 + "/bridge/" + bridgeName;
 146         NodeId nodeId = new NodeId(new Uri(nodeString));
 147         return createInstanceIdentifier(nodeId);
 148
 149     }
 150
 151     public static NodeId createManagedNodeId(final InstanceIdentifier<Node> iid) {
 152         NodeKey nodeKey = iid.firstKeyOf(Node.class);
 153         return nodeKey.getNodeId();
 154     }
 155
 156     public static InetAddress createInetAddress(final IpAddress ip) throws UnknownHostException {
 157         if (ip.getIpv4Address() != null) {
 158             return InetAddresses.forString(ip.getIpv4Address().getValue());
 159         } else if (ip.getIpv6Address() != null) {
 160             return InetAddress.getByName(ip.getIpv6Address().getValue());
 161         } else {
 162             throw new UnknownHostException("IP Address has no value");
 163         }
 164     }
 165
 166     public static DatapathId createDatapathId(final Bridge bridge) {
 167         Preconditions.checkNotNull(bridge);
 168         if (bridge.getDatapathIdColumn() == null) {
 169             return null;
 170         } else {
 171             return createDatapathId(bridge.getDatapathIdColumn().getData());
 172         }
 173     }
 174
 175     public static DatapathId createDatapathId(final Set<String> dpids) {
 176         Preconditions.checkNotNull(dpids);
 177         if (dpids.isEmpty()) {
 178             return null;
 179         } else {
 180             String[] dpidArray = new String[dpids.size()];
 181             dpids.toArray(dpidArray);
 182             return createDatapathId(dpidArray[0]);
 183         }
 184     }
 185
 186     public static DatapathId createDatapathId(final String dpid) {
 187         Preconditions.checkNotNull(dpid);
 188         DatapathId datapath;
 189         if (dpid.matches("^[0-9a-fA-F]{16}")) {
 190             Splitter splitter = Splitter.fixedLength(2);
 191             Joiner joiner = Joiner.on(":");
 192             datapath = new DatapathId(joiner.join(splitter.split(dpid)));
 193         } else {
 194             datapath = new DatapathId(dpid);
 195         }
 196         return datapath;
 197     }
 198
 199     public static String createDatapathType(final OvsdbBridgeAugmentation mdsalbridge) {
 200         String datapathtype = SouthboundConstants.DATAPATH_TYPE_MAP.get(DatapathTypeSystem.class);
 201
 202         if (mdsalbridge.getDatapathType() != null && !mdsalbridge.getDatapathType().equals(DatapathTypeBase.class)) {
 203             datapathtype = SouthboundConstants.DATAPATH_TYPE_MAP.get(mdsalbridge.getDatapathType());
 204             if (datapathtype == null) {
 205                 throw new IllegalArgumentException("Unknown datapath type " + mdsalbridge.getDatapathType().getName());
 206             }
 207         }
 208         return datapathtype;
 209     }
 210
 211     public static  Class<? extends DatapathTypeBase> createDatapathType(final String type) {
 212         Preconditions.checkNotNull(type);
 213         if (type.isEmpty()) {
 214             return DatapathTypeSystem.class;
 215         } else {
 216             ImmutableBiMap<String, Class<? extends DatapathTypeBase>> mapper =
 217                     SouthboundConstants.DATAPATH_TYPE_MAP.inverse();
 218             return mapper.get(type);
 219         }
 220     }
 221
 222     public static Set<String> createOvsdbBridgeProtocols(final OvsdbBridgeAugmentation ovsdbBridgeNode) {
 223         Set<String> protocols = new HashSet<>();
 224         if (ovsdbBridgeNode.getProtocolEntry() != null && ovsdbBridgeNode.getProtocolEntry().size() > 0) {
 225             for (ProtocolEntry protocol : ovsdbBridgeNode.getProtocolEntry()) {
 226                 if (SouthboundConstants.OVSDB_PROTOCOL_MAP.get(protocol.getProtocol()) != null) {
 227                     protocols.add(SouthboundConstants.OVSDB_PROTOCOL_MAP.get(protocol.getProtocol()));
 228                 } else {
 229                     throw new IllegalArgumentException("Unknown protocol " + protocol.getProtocol());
 230                 }
 231             }
 232         }
 233         return protocols;
 234     }
 235
 236     public static  Class<? extends InterfaceTypeBase> createInterfaceType(final String type) {
 237         Preconditions.checkNotNull(type);
 238         return SouthboundConstants.OVSDB_INTERFACE_TYPE_MAP.get(type);
 239     }
 240
 241     public static String createOvsdbInterfaceType(final Class<? extends InterfaceTypeBase> mdsaltype) {
 242         Preconditions.checkNotNull(mdsaltype);
 243         ImmutableBiMap<Class<? extends InterfaceTypeBase>, String> mapper =
 244                 SouthboundConstants.OVSDB_INTERFACE_TYPE_MAP.inverse();
 245         return mapper.get(mdsaltype);
 246     }
 247
 248     public static List<ProtocolEntry> createMdsalProtocols(final Bridge bridge) {
 249         Set<String> protocols = null;
 250         try {
 251             protocols = bridge.getProtocolsColumn().getData();
 252         } catch (SchemaVersionMismatchException e) {
 253             schemaMismatchLog("protocols", "Bridge", e);
 254         }
 255         List<ProtocolEntry> protocolList = new ArrayList<>();
 256         if (protocols != null && protocols.size() > 0) {
 257             ImmutableBiMap<String, Class<? extends OvsdbBridgeProtocolBase>> mapper =
 258                     SouthboundConstants.OVSDB_PROTOCOL_MAP.inverse();
 259             for (String protocol : protocols) {
 260                 if (protocol != null && mapper.get(protocol) != null) {
 261                     protocolList.add(new ProtocolEntryBuilder().setProtocol(mapper.get(protocol)).build());
 262                 }
 263             }
 264         }
 265         return protocolList;
 266     }
 267
 268     /**
 269      * Create the {@link ControllerEntry} list given an OVSDB {@link Bridge}
 270      * and {@link Controller} rows.
 271      *
 272      * @param bridge the {@link Bridge} to update
 273      * @param updatedControllerRows the list of {@link Controller} controllers with updates
 274      * @return list of {@link ControllerEntry} entries
 275      */
 276     public static List<ControllerEntry> createControllerEntries(final Bridge bridge,
 277                                                                 final Map<UUID, Controller> updatedControllerRows) {
 278
 279         LOG.debug("createControllerEntries Bridge: {}\n, updatedControllerRows: {}",
 280                 bridge, updatedControllerRows);
 281         final Set<UUID> controllerUuids = bridge.getControllerColumn().getData();
 282         final List<ControllerEntry> controllerEntries = new ArrayList<>();
 283         for (UUID controllerUuid : controllerUuids) {
 284             final Controller controller = updatedControllerRows.get(controllerUuid);
 285             addControllerEntries(controllerEntries, controller);
 286         }
 287         LOG.debug("controllerEntries: {}", controllerEntries);
 288         return controllerEntries;
 289     }
 290
 291     /**
 292      * Create the {@link ControllerEntry} list given an MDSAL {@link Node} bridge
 293      * and {@link Controller} rows.
 294      *
 295      * @param bridgeNode the {@link Node} to update
 296      * @param updatedControllerRows the list of {@link Controller} controllers with updates
 297      * @return list of {@link ControllerEntry} entries
 298      */
 299     public static List<ControllerEntry> createControllerEntries(final Node bridgeNode,
 300                                                                 final Map<UUID, Controller> updatedControllerRows) {
 301
 302         LOG.debug("createControllerEntries Bridge 2: {}\n, updatedControllerRows: {}",
 303                 bridgeNode, updatedControllerRows);
 304         final List<ControllerEntry> controllerEntriesCreated = new ArrayList<>();
 305         final OvsdbBridgeAugmentation ovsdbBridgeAugmentation =
 306                 bridgeNode.augmentation(OvsdbBridgeAugmentation.class);
 307         if (ovsdbBridgeAugmentation == null) {
 308             return controllerEntriesCreated;
 309         }
 310
 311         final List<ControllerEntry> controllerEntries = ovsdbBridgeAugmentation.getControllerEntry();
 312         if (controllerEntries != null) {
 313             for (ControllerEntry controllerEntry : controllerEntries) {
 314                 final Controller controller = updatedControllerRows.get(
 315                         new UUID(controllerEntry.getControllerUuid().getValue()));
 316                 addControllerEntries(controllerEntriesCreated, controller);
 317             }
 318         }
 319         LOG.debug("controllerEntries: {}", controllerEntriesCreated);
 320         return controllerEntriesCreated;
 321     }
 322
 323     /**
 324      * Add the OVSDB {@link Controller} updates to the MDSAL {@link ControllerEntry} list.
 325      *
 326      * @param controllerEntries the list of {@link ControllerEntry} to update
 327      * @param controller the updated OVSDB {@link Controller}
 328      */
 329     public static void addControllerEntries(final List<ControllerEntry> controllerEntries,
 330                                             final Controller controller) {
 331
 332         if (controller != null && controller.getTargetColumn() != null) {
 333             final String targetString = controller.getTargetColumn().getData();
 334             final org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid uuid =
 335                     new org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang
 336                             .ietf.yang.types.rev130715.Uuid(controller.getUuid().toString());
 337             ControllerEntryBuilder builder = new ControllerEntryBuilder();
 338
 339             if (controller.getMaxBackoffColumn() != null && controller.getMaxBackoffColumn().getData() != null
 340                     && !controller.getMaxBackoffColumn().getData().isEmpty()) {
 341                 builder.setMaxBackoff(controller.getMaxBackoffColumn().getData().iterator().next());
 342             }
 343             if (controller.getInactivityProbeColumn() != null && controller.getInactivityProbeColumn().getData() != null
 344                     && !controller.getInactivityProbeColumn().getData().isEmpty()) {
 345                 builder.setInactivityProbe(controller.getInactivityProbeColumn().getData().iterator().next());
 346             }
 347             controllerEntries.add(builder
 348                     .setTarget(new Uri(targetString))
 349                     .setIsConnected(controller.getIsConnectedColumn().getData())
 350                     .setControllerUuid(uuid).build());
 351         }
 352     }
 353
 354     // This is not called from anywhere but test. Do we need this?
 355     public static Map<UUID, Controller> createOvsdbController(final OvsdbBridgeAugmentation omn,
 356             final DatabaseSchema dbSchema) {
 357         List<ControllerEntry> controllerEntries = omn.getControllerEntry();
 358         Map<UUID,Controller> controllerMap = new HashMap<>();
 359         if (controllerEntries != null && !controllerEntries.isEmpty()) {
 360             for (ControllerEntry controllerEntry : controllerEntries) {
 361                 String controllerNamedUuid = "Controller_" + getRandomUuid();
 362                 Controller controller = TypedDatabaseSchema.of(dbSchema).getTypedRowWrapper(Controller.class);
 363                 controller.setTarget(controllerEntry.getTarget().getValue());
 364                 controllerMap.put(new UUID(controllerNamedUuid), controller);
 365             }
 366         }
 367         return controllerMap;
 368     }
 369
 370     public static String getRandomUuid() {
 371         return "Random_" + java.util.UUID.randomUUID().toString().replace("-", "");
 372     }
 373
 374     public static ConnectionInfo createConnectionInfo(final OvsdbClient client) {
 375         ConnectionInfoBuilder connectionInfoBuilder = new ConnectionInfoBuilder();
 376         connectionInfoBuilder.setRemoteIp(createIpAddress(client.getConnectionInfo().getRemoteAddress()));
 377         connectionInfoBuilder.setRemotePort(new PortNumber(client.getConnectionInfo().getRemotePort()));
 378         connectionInfoBuilder.setLocalIp(createIpAddress(client.getConnectionInfo().getLocalAddress()));
 379         connectionInfoBuilder.setLocalPort(new PortNumber(client.getConnectionInfo().getLocalPort()));
 380         return connectionInfoBuilder.build();
 381     }
 382
 383     public static ConnectionInfo suppressLocalIpPort(final ConnectionInfo connectionInfo) {
 384         ConnectionInfoBuilder connectionInfoBuilder = new ConnectionInfoBuilder();
 385         connectionInfoBuilder.setRemoteIp(connectionInfo.getRemoteIp());
 386         connectionInfoBuilder.setRemotePort(connectionInfo.getRemotePort());
 387         return connectionInfoBuilder.build();
 388     }
 389
 390     /**
 391      * Create the {@link ManagerEntry} list given an OVSDB {@link OpenVSwitch}
 392      * and {@link Manager} rows.
 393      *
 394      * @param ovsdbNode the {@link OpenVSwitch} to update
 395      * @param updatedManagerRows the list of {@link Manager} managers with updates
 396      * @return list of {@link ManagerEntry} entries
 397      */
 398     public static List<ManagerEntry> createManagerEntries(final OpenVSwitch ovsdbNode,
 399                                                                 final Map<UUID, Manager> updatedManagerRows) {
 400
 401         LOG.debug("createManagerEntries OpenVSwitch: {}\n, updatedManagerRows: {}",
 402                 ovsdbNode, updatedManagerRows);
 403         final Set<UUID> managerUuids = ovsdbNode.getManagerOptionsColumn().getData();
 404         final List<ManagerEntry> managerEntries = new ArrayList<>();
 405         for (UUID managerUuid : managerUuids) {
 406             final Manager manager = updatedManagerRows.get(managerUuid);
 407             addManagerEntries(managerEntries, manager);
 408         }
 409         LOG.debug("managerEntries: {}", managerEntries);
 410         return managerEntries;
 411     }
 412
 413     /**
 414      * Create the {@link ManagerEntry} list given an MDSAL {@link Node} ovsdbNode
 415      * and {@link Manager} rows.
 416      *
 417      * @param ovsdbNode the {@link Node} to update
 418      * @param updatedManagerRows the list of {@link Manager} managers with updates
 419      * @return list of {@link ManagerEntry} entries
 420      */
 421     public static List<ManagerEntry> createManagerEntries(final Node ovsdbNode,
 422                                                                 final Map<Uri, Manager> updatedManagerRows) {
 423
 424         LOG.debug("createManagerEntries based on OVSDB Node: {}\n, updatedManagerRows: {}",
 425                 ovsdbNode, updatedManagerRows);
 426         final List<ManagerEntry> managerEntriesCreated = new ArrayList<>();
 427         final OvsdbNodeAugmentation ovsdbNodeAugmentation =
 428                 ovsdbNode.augmentation(OvsdbNodeAugmentation.class);
 429         if (ovsdbNodeAugmentation == null) {
 430             return managerEntriesCreated;
 431         }
 432
 433         final List<ManagerEntry> managerEntries = ovsdbNodeAugmentation.getManagerEntry();
 434         if (managerEntries != null) {
 435             for (ManagerEntry managerEntry : managerEntries) {
 436                 final Manager manager = updatedManagerRows.get(managerEntry.getTarget());
 437                 addManagerEntries(managerEntriesCreated, manager);
 438             }
 439         }
 440         LOG.debug("managerEntries: {}", managerEntriesCreated);
 441         return managerEntriesCreated;
 442     }
 443
 444     /**
 445      * Add the OVSDB {@link Manager} updates to the MDSAL {@link ManagerEntry} list.
 446      *
 447      * @param managerEntries the list of {@link ManagerEntry} to update
 448      * @param manager the updated OVSDB {@link Manager}
 449      */
 450     public static void addManagerEntries(final List<ManagerEntry> managerEntries,
 451                                             final Manager manager) {
 452
 453         if (manager != null && manager.getTargetColumn() != null) {
 454             long numberOfConnections = 0;
 455             final String targetString = manager.getTargetColumn().getData();
 456
 457             final Map<String, String> statusAttributeMap =
 458                             manager.getStatusColumn() == null ? null : manager.getStatusColumn().getData();
 459             if (statusAttributeMap != null && statusAttributeMap.containsKey(N_CONNECTIONS_STR)) {
 460                 String numberOfConnectionValueStr = statusAttributeMap.get(N_CONNECTIONS_STR);
 461                 numberOfConnections = Integer.parseInt(numberOfConnectionValueStr);
 462             } else {
 463                 final boolean isConnected = manager.getIsConnectedColumn().getData();
 464                 if (isConnected) {
 465                     numberOfConnections = 1;
 466                 }
 467             }
 468             managerEntries.add(new ManagerEntryBuilder()
 469                     .setTarget(new Uri(targetString))
 470                     .setNumberOfConnections(numberOfConnections)
 471                     .setConnected(manager.getIsConnectedColumn().getData()).build());
 472         }
 473     }
 474
 475     /**
 476      * Return the MD-SAL QoS type class corresponding to the QoS type {@link Qos}.
 477      *
 478      * @param type the QoS type to match {@link String}
 479      * @return class matching the input QoS type {@link QosTypeBase}
 480      */
 481     public static  Class<? extends QosTypeBase> createQosType(final String type) {
 482         Preconditions.checkNotNull(type);
 483         if (type.isEmpty()) {
 484             LOG.info("QoS type not supplied");
 485             return QosTypeBase.class;
 486         } else {
 487             ImmutableBiMap<String, Class<? extends QosTypeBase>> mapper =
 488                     SouthboundConstants.QOS_TYPE_MAP.inverse();
 489             if (mapper.get(type) == null) {
 490                 LOG.info("QoS type not found in model: {}", type);
 491                 return QosTypeBase.class;
 492             } else {
 493                 return mapper.get(type);
 494             }
 495         }
 496     }
 497
 498     public static String createQosType(final Class<? extends QosTypeBase> qosTypeClass) {
 499         String qosType = SouthboundConstants.QOS_TYPE_MAP.get(QosTypeBase.class);
 500
 501         if (qosTypeClass != null && !qosTypeClass.equals(QosTypeBase.class)) {
 502             qosType = SouthboundConstants.QOS_TYPE_MAP.get(qosTypeClass);
 503             if (qosType == null) {
 504                 throw new IllegalArgumentException("Unknown QoS type" + qosTypeClass.getName());
 505             }
 506         }
 507         return qosType;
 508     }
 509
 510
 511     public static InstanceIdentifier<Node> getInstanceIdentifier(final InstanceIdentifierCodec instanceIdentifierCodec,
 512             final OpenVSwitch ovs) {
 513         if (ovs.getExternalIdsColumn() != null
 514                 && ovs.getExternalIdsColumn().getData() != null
 515                 && ovs.getExternalIdsColumn().getData().containsKey(SouthboundConstants.IID_EXTERNAL_ID_KEY)) {
 516             String iidString = ovs.getExternalIdsColumn().getData().get(SouthboundConstants.IID_EXTERNAL_ID_KEY);
 517             return (InstanceIdentifier<Node>) instanceIdentifierCodec.bindingDeserializerOrNull(iidString);
 518         } else {
 519             String nodeString = SouthboundConstants.OVSDB_URI_PREFIX + "://" + SouthboundConstants.UUID + "/"
 520                     + ovs.getUuid().toString();
 521             NodeId nodeId = new NodeId(new Uri(nodeString));
 522             NodeKey nodeKey = new NodeKey(nodeId);
 523             return InstanceIdentifier.builder(NetworkTopology.class)
 524                     .child(Topology.class,new TopologyKey(SouthboundConstants.OVSDB_TOPOLOGY_ID))
 525                     .child(Node.class,nodeKey)
 526                     .build();
 527         }
 528     }
 529
 530     public static Map<InstanceIdentifier<?>, DataObject> extractTerminationPointConfigurationChanges(
 531             final Node bridgeNode) {
 532         Map<InstanceIdentifier<?>, DataObject> changes = new HashMap<>();
 533         final InstanceIdentifier<Node> bridgeNodeIid =
 534                 SouthboundMapper.createInstanceIdentifier(bridgeNode.getNodeId());
 535         changes.put(bridgeNodeIid, bridgeNode);
 536
 537         List<TerminationPoint> terminationPoints = bridgeNode.getTerminationPoint();
 538         if (terminationPoints != null && !terminationPoints.isEmpty()) {
 539             for (TerminationPoint tp : terminationPoints) {
 540                 OvsdbTerminationPointAugmentation ovsdbTerminationPointAugmentation =
 541                         tp.augmentation(OvsdbTerminationPointAugmentation.class);
 542                 if (ovsdbTerminationPointAugmentation != null) {
 543                     final InstanceIdentifier<OvsdbTerminationPointAugmentation> tpIid =
 544                             bridgeNodeIid
 545                                     .child(TerminationPoint.class, new TerminationPointKey(tp.getTpId()))
 546                                     .builder()
 547                                     .augmentation(OvsdbTerminationPointAugmentation.class)
 548                                     .build();
 549                     changes.put(tpIid, ovsdbTerminationPointAugmentation);
 550                 }
 551             }
 552         }
 553         return changes;
 554     }
 555 }