2 * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
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
8 package org.opendaylight.ovsdb.southbound;
10 import static org.opendaylight.ovsdb.southbound.SouthboundUtil.schemaMismatchLog;
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;
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.rev100924.IetfInetUtil;
38 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.IpAddress;
39 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv6Address;
40 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.PortNumber;
41 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.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;
68 public class SouthboundMapper {
69 private static final Logger LOG = LoggerFactory.getLogger(SouthboundMapper.class);
70 private static final String N_CONNECTIONS_STR = "n_connections";
72 public static IpAddress createIpAddress(InetAddress address) {
74 if (address instanceof Inet4Address) {
75 ip = createIpAddress((Inet4Address)address);
76 } else if (address instanceof Inet6Address) {
77 ip = createIpAddress((Inet6Address)address);
82 public static IpAddress createIpAddress(Inet4Address address) {
83 return IetfInetUtil.INSTANCE.ipAddressFor(address);
86 public static IpAddress createIpAddress(Inet6Address address) {
87 Ipv6Address ipv6 = new Ipv6Address(address.getHostAddress());
88 return new IpAddress(ipv6);
91 public static InstanceIdentifier<Topology> createTopologyInstanceIdentifier() {
92 return InstanceIdentifier
93 .create(NetworkTopology.class)
94 .child(Topology.class, new TopologyKey(SouthboundConstants.OVSDB_TOPOLOGY_ID));
97 public static InstanceIdentifier<OvsdbBridgeAugmentation>
98 createBridgeInstanceIdentifier(OvsdbConnectionInstance client, String bridgeName) {
99 return createInstanceIdentifier(client, bridgeName).augmentation(OvsdbBridgeAugmentation.class);
102 public static InstanceIdentifier<Node> createInstanceIdentifier(NodeId nodeId) {
103 return createTopologyInstanceIdentifier()
104 .child(Node.class,new NodeKey(nodeId));
107 @SuppressWarnings("unchecked")
108 public static InstanceIdentifier<Node> createInstanceIdentifier(OvsdbConnectionInstance client,Bridge bridge) {
109 InstanceIdentifier<Node> iid;
110 if (bridge.getExternalIdsColumn() != null
111 && bridge.getExternalIdsColumn().getData() != null
112 && bridge.getExternalIdsColumn().getData().containsKey(SouthboundConstants.IID_EXTERNAL_ID_KEY)) {
113 String iidString = bridge.getExternalIdsColumn().getData().get(SouthboundConstants.IID_EXTERNAL_ID_KEY);
114 iid = (InstanceIdentifier<Node>) SouthboundUtil.deserializeInstanceIdentifier(iidString);
116 iid = createInstanceIdentifier(client, bridge.getName());
121 @SuppressWarnings("unchecked")
122 public static InstanceIdentifier<Node> createInstanceIdentifier(
123 OvsdbConnectionInstance client, Controller controller, String bridgeName) {
124 InstanceIdentifier<Node> iid;
125 if (controller.getExternalIdsColumn() != null
126 && controller.getExternalIdsColumn().getData() != null
127 && controller.getExternalIdsColumn().getData().containsKey(SouthboundConstants.IID_EXTERNAL_ID_KEY)) {
128 String iidString = controller.getExternalIdsColumn().getData().get(SouthboundConstants.IID_EXTERNAL_ID_KEY);
129 iid = (InstanceIdentifier<Node>) SouthboundUtil.deserializeInstanceIdentifier(iidString);
131 iid = createInstanceIdentifier(client, bridgeName);
136 public static InstanceIdentifier<Node> createInstanceIdentifier(
137 OvsdbConnectionInstance client, String bridgeName) {
138 String nodeString = client.getNodeKey().getNodeId().getValue()
139 + "/bridge/" + bridgeName;
140 NodeId nodeId = new NodeId(new Uri(nodeString));
141 return createInstanceIdentifier(nodeId);
145 public static NodeId createManagedNodeId(InstanceIdentifier<Node> iid) {
146 NodeKey nodeKey = iid.firstKeyOf(Node.class, NodeKey.class);
147 return nodeKey.getNodeId();
150 public static InetAddress createInetAddress(IpAddress ip) throws UnknownHostException {
151 if (ip.getIpv4Address() != null) {
152 return InetAddresses.forString(ip.getIpv4Address().getValue());
153 } else if (ip.getIpv6Address() != null) {
154 return InetAddress.getByName(ip.getIpv6Address().getValue());
156 throw new UnknownHostException("IP Address has no value");
160 public static DatapathId createDatapathId(Bridge bridge) {
161 Preconditions.checkNotNull(bridge);
162 if (bridge.getDatapathIdColumn() == null) {
165 return createDatapathId(bridge.getDatapathIdColumn().getData());
169 public static DatapathId createDatapathId(Set<String> dpids) {
170 Preconditions.checkNotNull(dpids);
171 if (dpids.isEmpty()) {
174 String[] dpidArray = new String[dpids.size()];
175 dpids.toArray(dpidArray);
176 return createDatapathId(dpidArray[0]);
180 public static DatapathId createDatapathId(String dpid) {
181 Preconditions.checkNotNull(dpid);
183 if (dpid.matches("^[0-9a-fA-F]{16}")) {
184 Splitter splitter = Splitter.fixedLength(2);
185 Joiner joiner = Joiner.on(":");
186 datapath = new DatapathId(joiner.join(splitter.split(dpid)));
188 datapath = new DatapathId(dpid);
193 public static String createDatapathType(OvsdbBridgeAugmentation mdsalbridge) {
194 String datapathtype = SouthboundConstants.DATAPATH_TYPE_MAP.get(DatapathTypeSystem.class);
196 if (mdsalbridge.getDatapathType() != null && !mdsalbridge.getDatapathType().equals(DatapathTypeBase.class)) {
197 datapathtype = SouthboundConstants.DATAPATH_TYPE_MAP.get(mdsalbridge.getDatapathType());
198 if (datapathtype == null) {
199 throw new IllegalArgumentException("Unknown datapath type " + mdsalbridge.getDatapathType().getName());
205 public static Class<? extends DatapathTypeBase> createDatapathType(String type) {
206 Preconditions.checkNotNull(type);
207 if (type.isEmpty()) {
208 return DatapathTypeSystem.class;
210 ImmutableBiMap<String, Class<? extends DatapathTypeBase>> mapper =
211 SouthboundConstants.DATAPATH_TYPE_MAP.inverse();
212 return mapper.get(type);
216 public static Set<String> createOvsdbBridgeProtocols(OvsdbBridgeAugmentation ovsdbBridgeNode) {
217 Set<String> protocols = new HashSet<>();
218 if (ovsdbBridgeNode.getProtocolEntry() != null && ovsdbBridgeNode.getProtocolEntry().size() > 0) {
219 for (ProtocolEntry protocol : ovsdbBridgeNode.getProtocolEntry()) {
220 if (SouthboundConstants.OVSDB_PROTOCOL_MAP.get(protocol.getProtocol()) != null) {
221 protocols.add(SouthboundConstants.OVSDB_PROTOCOL_MAP.get(protocol.getProtocol()));
223 throw new IllegalArgumentException("Unknown protocol " + protocol.getProtocol());
230 public static Class<? extends InterfaceTypeBase> createInterfaceType(String type) {
231 Preconditions.checkNotNull(type);
232 return SouthboundConstants.OVSDB_INTERFACE_TYPE_MAP.get(type);
235 public static String createOvsdbInterfaceType(Class<? extends InterfaceTypeBase> mdsaltype) {
236 Preconditions.checkNotNull(mdsaltype);
237 ImmutableBiMap<Class<? extends InterfaceTypeBase>, String> mapper =
238 SouthboundConstants.OVSDB_INTERFACE_TYPE_MAP.inverse();
239 return mapper.get(mdsaltype);
242 public static List<ProtocolEntry> createMdsalProtocols(Bridge bridge) {
243 Set<String> protocols = null;
245 protocols = bridge.getProtocolsColumn().getData();
246 } catch (SchemaVersionMismatchException e) {
247 schemaMismatchLog("protocols", "Bridge", e);
249 List<ProtocolEntry> protocolList = new ArrayList<>();
250 if (protocols != null && protocols.size() > 0) {
251 ImmutableBiMap<String, Class<? extends OvsdbBridgeProtocolBase>> mapper =
252 SouthboundConstants.OVSDB_PROTOCOL_MAP.inverse();
253 for (String protocol : protocols) {
254 if (protocol != null && mapper.get(protocol) != null) {
255 protocolList.add(new ProtocolEntryBuilder().setProtocol(mapper.get(protocol)).build());
263 * Create the {@link ControllerEntry} list given an OVSDB {@link Bridge}
264 * and {@link Controller} rows.
266 * @param bridge the {@link Bridge} to update
267 * @param updatedControllerRows the list of {@link Controller} controllers with updates
268 * @return list of {@link ControllerEntry} entries
270 public static List<ControllerEntry> createControllerEntries(Bridge bridge,
271 Map<UUID, Controller> updatedControllerRows) {
273 LOG.debug("createControllerEntries Bridge: {}\n, updatedControllerRows: {}",
274 bridge, updatedControllerRows);
275 final Set<UUID> controllerUuids = bridge.getControllerColumn().getData();
276 final List<ControllerEntry> controllerEntries = new ArrayList<>();
277 for (UUID controllerUuid : controllerUuids ) {
278 final Controller controller = updatedControllerRows.get(controllerUuid);
279 addControllerEntries(controllerEntries, controller);
281 LOG.debug("controllerEntries: {}", controllerEntries);
282 return controllerEntries;
286 * Create the {@link ControllerEntry} list given an MDSAL {@link Node} bridge
287 * and {@link Controller} rows.
289 * @param bridgeNode the {@link Node} to update
290 * @param updatedControllerRows the list of {@link Controller} controllers with updates
291 * @return list of {@link ControllerEntry} entries
293 public static List<ControllerEntry> createControllerEntries(Node bridgeNode,
294 Map<UUID, Controller> updatedControllerRows) {
296 LOG.debug("createControllerEntries Bridge 2: {}\n, updatedControllerRows: {}",
297 bridgeNode, updatedControllerRows);
298 final List<ControllerEntry> controllerEntriesCreated = new ArrayList<>();
299 final OvsdbBridgeAugmentation ovsdbBridgeAugmentation =
300 bridgeNode.getAugmentation(OvsdbBridgeAugmentation.class);
301 if (ovsdbBridgeAugmentation == null) {
302 return controllerEntriesCreated;
305 final List<ControllerEntry> controllerEntries = ovsdbBridgeAugmentation.getControllerEntry();
306 if (controllerEntries != null) {
307 for (ControllerEntry controllerEntry : controllerEntries) {
308 final Controller controller = updatedControllerRows.get(
309 new UUID(controllerEntry.getControllerUuid().getValue()));
310 addControllerEntries(controllerEntriesCreated, controller);
313 LOG.debug("controllerEntries: {}", controllerEntriesCreated);
314 return controllerEntriesCreated;
318 * Add the OVSDB {@link Controller} updates to the MDSAL {@link ControllerEntry} list.
320 * @param controllerEntries the list of {@link ControllerEntry} to update
321 * @param controller the updated OVSDB {@link Controller}
323 public static void addControllerEntries(List<ControllerEntry> controllerEntries,
324 final Controller controller) {
326 if (controller != null && controller.getTargetColumn() != null) {
327 final String targetString = controller.getTargetColumn().getData();
328 final org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid uuid =
329 new org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang
330 .ietf.yang.types.rev130715.Uuid(controller.getUuid().toString());
332 controllerEntries.add(new ControllerEntryBuilder()
333 .setTarget(new Uri(targetString))
334 .setIsConnected(controller.getIsConnectedColumn().getData())
335 .setControllerUuid(uuid).build());
339 public static Map<UUID, Controller> createOvsdbController(OvsdbBridgeAugmentation omn,DatabaseSchema dbSchema) {
340 List<ControllerEntry> controllerEntries = omn.getControllerEntry();
341 Map<UUID,Controller> controllerMap = new HashMap<>();
342 if (controllerEntries != null && !controllerEntries.isEmpty()) {
343 for (ControllerEntry controllerEntry : controllerEntries) {
344 String controllerNamedUuid = "Controller_" + getRandomUuid();
345 Controller controller = TyperUtils.getTypedRowWrapper(dbSchema, Controller.class);
346 controller.setTarget(controllerEntry.getTarget().getValue());
347 controllerMap.put(new UUID(controllerNamedUuid), controller);
350 return controllerMap;
353 public static String getRandomUuid() {
354 return "Random_" + java.util.UUID.randomUUID().toString().replace("-", "");
357 public static ConnectionInfo createConnectionInfo(OvsdbClient client) {
358 ConnectionInfoBuilder connectionInfoBuilder = new ConnectionInfoBuilder();
359 connectionInfoBuilder.setRemoteIp(createIpAddress(client.getConnectionInfo().getRemoteAddress()));
360 connectionInfoBuilder.setRemotePort(new PortNumber(client.getConnectionInfo().getRemotePort()));
361 connectionInfoBuilder.setLocalIp(createIpAddress(client.getConnectionInfo().getLocalAddress()));
362 connectionInfoBuilder.setLocalPort(new PortNumber(client.getConnectionInfo().getLocalPort()));
363 return connectionInfoBuilder.build();
366 public static ConnectionInfo suppressLocalIpPort(ConnectionInfo connectionInfo) {
367 ConnectionInfoBuilder connectionInfoBuilder = new ConnectionInfoBuilder();
368 connectionInfoBuilder.setRemoteIp(connectionInfo.getRemoteIp());
369 connectionInfoBuilder.setRemotePort(connectionInfo.getRemotePort());
370 return connectionInfoBuilder.build();
374 * Create the {@link ManagerEntry} list given an OVSDB {@link OpenVSwitch}
375 * and {@link Manager} rows.
377 * @param ovsdbNode the {@link OpenVSwitch} to update
378 * @param updatedManagerRows the list of {@link Manager} managers with updates
379 * @return list of {@link ManagerEntry} entries
381 public static List<ManagerEntry> createManagerEntries(OpenVSwitch ovsdbNode,
382 Map<UUID, Manager> updatedManagerRows) {
384 LOG.debug("createManagerEntries OpenVSwitch: {}\n, updatedManagerRows: {}",
385 ovsdbNode, updatedManagerRows);
386 final Set<UUID> managerUuids = ovsdbNode.getManagerOptionsColumn().getData();
387 final List<ManagerEntry> managerEntries = new ArrayList<>();
388 for (UUID managerUuid : managerUuids) {
389 final Manager manager = updatedManagerRows.get(managerUuid);
390 addManagerEntries(managerEntries, manager);
392 LOG.debug("managerEntries: {}", managerEntries);
393 return managerEntries;
397 * Create the {@link ManagerEntry} list given an MDSAL {@link Node} ovsdbNode
398 * and {@link Manager} rows.
400 * @param ovsdbNode the {@link Node} to update
401 * @param updatedManagerRows the list of {@link Manager} managers with updates
402 * @return list of {@link ManagerEntry} entries
404 public static List<ManagerEntry> createManagerEntries(Node ovsdbNode,
405 Map<Uri, Manager> updatedManagerRows) {
407 LOG.debug("createManagerEntries based on OVSDB Node: {}\n, updatedManagerRows: {}",
408 ovsdbNode, updatedManagerRows);
409 final List<ManagerEntry> managerEntriesCreated = new ArrayList<>();
410 final OvsdbNodeAugmentation ovsdbNodeAugmentation =
411 ovsdbNode.getAugmentation(OvsdbNodeAugmentation.class);
412 if (ovsdbNodeAugmentation == null) {
413 return managerEntriesCreated;
416 final List<ManagerEntry> managerEntries = ovsdbNodeAugmentation.getManagerEntry();
417 if (managerEntries != null) {
418 for (ManagerEntry managerEntry : managerEntries) {
419 final Manager manager = updatedManagerRows.get(managerEntry.getTarget());
420 addManagerEntries(managerEntriesCreated, manager);
423 LOG.debug("managerEntries: {}", managerEntriesCreated);
424 return managerEntriesCreated;
428 * Add the OVSDB {@link Manager} updates to the MDSAL {@link ManagerEntry} list.
430 * @param managerEntries the list of {@link ManagerEntry} to update
431 * @param manager the updated OVSDB {@link Manager}
433 public static void addManagerEntries(List<ManagerEntry> managerEntries,
434 final Manager manager) {
436 if (manager != null && manager.getTargetColumn() != null) {
437 long numberOfConnections = 0;
438 final String targetString = manager.getTargetColumn().getData();
440 final Map<String, String> statusAttributeMap = manager.getStatusColumn().getData();
441 if (statusAttributeMap.containsKey(N_CONNECTIONS_STR)) {
442 String numberOfConnectionValueStr = statusAttributeMap.get(N_CONNECTIONS_STR);
443 numberOfConnections = Integer.parseInt(numberOfConnectionValueStr);
445 final boolean isConnected = manager.getIsConnectedColumn().getData();
447 numberOfConnections = 1;
450 managerEntries.add(new ManagerEntryBuilder()
451 .setTarget(new Uri(targetString))
452 .setNumberOfConnections(numberOfConnections)
453 .setConnected(manager.getIsConnectedColumn().getData()).build());
458 * Return the MD-SAL QoS type class corresponding to the QoS type {@link Qos}.
460 * @param type the QoS type to match {@link String}
461 * @return class matching the input QoS type {@link QosTypeBase}
463 public static Class<? extends QosTypeBase> createQosType(String type) {
464 Preconditions.checkNotNull(type);
465 if (type.isEmpty()) {
466 LOG.info("QoS type not supplied");
467 return QosTypeBase.class;
469 ImmutableBiMap<String, Class<? extends QosTypeBase>> mapper =
470 SouthboundConstants.QOS_TYPE_MAP.inverse();
471 if (mapper.get(type) == null) {
472 LOG.info("QoS type not found in model: {}", type);
473 return QosTypeBase.class;
475 return mapper.get(type);
480 public static String createQosType(Class<? extends QosTypeBase> qosTypeClass) {
481 String qosType = SouthboundConstants.QOS_TYPE_MAP.get(QosTypeBase.class);
483 if (qosTypeClass != null && !qosTypeClass.equals(QosTypeBase.class)) {
484 qosType = SouthboundConstants.QOS_TYPE_MAP.get(qosTypeClass);
485 if (qosType == null) {
486 throw new IllegalArgumentException("Unknown QoS type" + qosTypeClass.getName());
493 public static InstanceIdentifier<Node> getInstanceIdentifier(OpenVSwitch ovs) {
494 if (ovs.getExternalIdsColumn() != null
495 && ovs.getExternalIdsColumn().getData() != null
496 && ovs.getExternalIdsColumn().getData().containsKey(SouthboundConstants.IID_EXTERNAL_ID_KEY)) {
497 String iidString = ovs.getExternalIdsColumn().getData().get(SouthboundConstants.IID_EXTERNAL_ID_KEY);
498 return (InstanceIdentifier<Node>) SouthboundUtil.deserializeInstanceIdentifier(iidString);
500 String nodeString = SouthboundConstants.OVSDB_URI_PREFIX + "://" + SouthboundConstants.UUID + "/"
501 + ovs.getUuid().toString();
502 NodeId nodeId = new NodeId(new Uri(nodeString));
503 NodeKey nodeKey = new NodeKey(nodeId);
504 return InstanceIdentifier.builder(NetworkTopology.class)
505 .child(Topology.class,new TopologyKey(SouthboundConstants.OVSDB_TOPOLOGY_ID))
506 .child(Node.class,nodeKey)