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