ovsdb enable checkstyle on error
[ovsdb.git] / southbound / southbound-impl / src / main / java / org / opendaylight / ovsdb / southbound / transactions / md / OvsdbPortUpdateCommand.java
index 5eb52cadc66c49c74328308f07698fca9535d3b6..148f3cdde536884954eda008453fe0787665f76b 100644 (file)
@@ -8,16 +8,21 @@
 
 package org.opendaylight.ovsdb.southbound.transactions.md;
 
+import static org.opendaylight.ovsdb.southbound.SouthboundUtil.schemaMismatchLog;
+
+import com.google.common.base.Optional;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
+import java.util.Map.Entry;
 import java.util.Set;
-
 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
+import org.opendaylight.ovsdb.lib.error.ColumnSchemaNotFoundException;
+import org.opendaylight.ovsdb.lib.error.SchemaVersionMismatchException;
 import org.opendaylight.ovsdb.lib.message.TableUpdates;
 import org.opendaylight.ovsdb.lib.notation.Column;
 import org.opendaylight.ovsdb.lib.notation.UUID;
@@ -27,193 +32,660 @@ import org.opendaylight.ovsdb.lib.schema.typed.TyperUtils;
 import org.opendaylight.ovsdb.schema.openvswitch.Bridge;
 import org.opendaylight.ovsdb.schema.openvswitch.Interface;
 import org.opendaylight.ovsdb.schema.openvswitch.Port;
-import org.opendaylight.ovsdb.southbound.OvsdbClientKey;
+import org.opendaylight.ovsdb.schema.openvswitch.Qos;
+import org.opendaylight.ovsdb.southbound.OvsdbConnectionInstance;
+import org.opendaylight.ovsdb.southbound.SouthboundConstants;
 import org.opendaylight.ovsdb.southbound.SouthboundMapper;
+import org.opendaylight.ovsdb.southbound.SouthboundUtil;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Uri;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.l2.types.rev130827.VlanId;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeAugmentation;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeName;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbNodeAugmentation;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbPortInterfaceAttributes;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbQosRef;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbTerminationPointAugmentation;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbTerminationPointAugmentationBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.external.ids.attributes.ExternalIds;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.external.ids.attributes.ExternalIdsBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.ManagedNodeEntry;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.QosEntries;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.QosEntriesKey;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.InterfaceBfd;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.InterfaceBfdBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.InterfaceBfdKey;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.InterfaceBfdStatus;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.InterfaceBfdStatusBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.InterfaceBfdStatusKey;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.InterfaceExternalIds;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.InterfaceExternalIdsBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.InterfaceLldp;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.InterfaceLldpBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.InterfaceLldpKey;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.InterfaceOtherConfigs;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.InterfaceOtherConfigsBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.Options;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.OptionsBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.OptionsKey;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.PortExternalIds;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.PortExternalIdsBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.PortOtherConfigs;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.PortOtherConfigsBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.QosEntry;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.QosEntryBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.QosEntryKey;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.Trunks;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.TrunksBuilder;
+import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.TpId;
+import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
+import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
-import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeBuilder;
+import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeKey;
 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPoint;
 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPointBuilder;
+import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPointKey;
 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import com.google.common.base.Optional;
-
 public class OvsdbPortUpdateCommand extends AbstractTransactionCommand {
     private static final Logger LOG = LoggerFactory.getLogger(OvsdbPortUpdateCommand.class);
+    private Map<UUID, Port> portUpdatedRows;
+    private Map<UUID, Port> portOldRows;
+    private Map<UUID, Interface> interfaceUpdatedRows;
+    private Map<UUID, Interface> interfaceOldRows;
+    private Map<UUID, Bridge> bridgeUpdatedRows;
+    private Map<UUID, Qos> qosUpdatedRows;
 
-    public OvsdbPortUpdateCommand(OvsdbClientKey key, TableUpdates updates,
+    public OvsdbPortUpdateCommand(OvsdbConnectionInstance key, TableUpdates updates,
             DatabaseSchema dbSchema) {
         super(key, updates, dbSchema);
+        portUpdatedRows = TyperUtils.extractRowsUpdated(Port.class, updates, dbSchema);
+        portOldRows = TyperUtils.extractRowsOld(Port.class, updates, dbSchema);
+        interfaceUpdatedRows = TyperUtils.extractRowsUpdated(Interface.class, updates, dbSchema);
+        interfaceOldRows = TyperUtils.extractRowsOld(Interface.class, updates, dbSchema);
+        bridgeUpdatedRows = TyperUtils.extractRowsUpdated(Bridge.class, updates, dbSchema);
+        qosUpdatedRows = TyperUtils.extractRowsUpdated(Qos.class, updates, dbSchema);
     }
 
     @Override
     public void execute(ReadWriteTransaction transaction) {
-        String bridgeName = null;
-        Collection<Port> portUpdatedRows = TyperUtils.extractRowsUpdated(
-                Port.class, getUpdates(), getDbSchema()).values();
-        Collection<Bridge> bridgeUpdatedRows = TyperUtils.extractRowsUpdated(
-                Bridge.class, getUpdates(), getDbSchema()).values();
-        for (Bridge bridge : bridgeUpdatedRows) {
-            Iterator<UUID> bridgePorts = bridge.getPortsColumn().getData()
-                    .iterator();
-            while (bridgePorts.hasNext()) {
-                UUID portUUID = bridgePorts.next();
-                for (Port port : portUpdatedRows) {
-                    if (portUUID.equals(port.getUuid())) {
-                        Collection<Long> vlanId = port.getTagColumn().getData();
-                        Set<Long> portTrunks = port.getTrunksColumn().getData();
-                        bridgeName = bridge.getName();
-                        NodeId bridgeId = SouthboundMapper.createManagedNodeId(
-                                getKey(), new OvsdbBridgeName(bridgeName));
-                        final InstanceIdentifier<Node> nodePath = SouthboundMapper
-                                .createInstanceIdentifier(bridgeId);
-                        Optional<Node> node = Optional.absent();
-                        try {
-                            node = transaction.read(
-                                    LogicalDatastoreType.OPERATIONAL, nodePath)
-                                    .checkedGet();
-                        } catch (final ReadFailedException e) {
-                            LOG.warn("Read Operational/DS for Node fail! {}",
-                                    nodePath, e);
-                        }
-                        if (node.isPresent()) {
-                            NodeBuilder nodeBuilder = new NodeBuilder();
-                            nodeBuilder.setNodeId(bridgeId);
-
-                            OvsdbTerminationPointAugmentationBuilder ovsdbTerminationPointBuilder
-                                = new OvsdbTerminationPointAugmentationBuilder();
-                            List<TerminationPoint> tpList = new ArrayList<TerminationPoint>();
-                            TerminationPointBuilder entry = new TerminationPointBuilder();
-                            TpId tpId = SouthboundMapper
-                                    .createTerminationPointId(getKey(),
-                                            new OvsdbBridgeName(bridgeName),
-                                            port.getName());
-                            entry.setTpId(tpId);
-                            ovsdbTerminationPointBuilder
-                                    .setName(port.getName());
-                            ovsdbTerminationPointBuilder.setPortUuid(new Uuid(
-                                    port.getUuid().toString()));
-                            if (vlanId.size() > 0) {
-                                Iterator<Long> itr = vlanId.iterator();
-                                // There are no loops here, just get the first element.
-                                int id = itr.next().intValue();
-                                ovsdbTerminationPointBuilder.setVlanTag(new VlanId(id));
-                            }
-                            List<Trunks> modelTrunks = new ArrayList<Trunks>();
-                            for (Long trunk: portTrunks) {
-                                if (trunk != null) {
-                                    modelTrunks.add(new TrunksBuilder().setTrunk(new VlanId(trunk.intValue())).build());
-                                }
-                            }
-                            ovsdbTerminationPointBuilder.setTrunks(modelTrunks);
-                            Column<GenericTableSchema, Set<UUID>> iface = port.getInterfacesColumn();
-                            Set<UUID> ifUuid = iface.getData();
-                            Collection<Interface> ifUpdateRows = TyperUtils.extractRowsUpdated(
-                                    Interface.class, getUpdates(),  getDbSchema()).values();
-                            for (UUID ifIter : ifUuid) {
-                                for (Interface interfIter : ifUpdateRows) {
-                                    Column<GenericTableSchema, String> typeColumn = interfIter.getTypeColumn();
-                                    String type = typeColumn.getData();
-                                    if ((interfIter.getUuid()).equals(ifIter)) {
-                                        ovsdbTerminationPointBuilder.setInterfaceUuid(
-                                                new Uuid(interfIter.getUuid().toString()));
-                                        ovsdbTerminationPointBuilder.setInterfaceType(
-                                                SouthboundMapper.createInterfaceType(type));
-                                        Set<Long> ofPorts = interfIter.getOpenFlowPortColumn().getData();
-                                        if (ofPorts != null && !ofPorts.isEmpty()) {
-                                            Iterator<Long> ofPortsIter = ofPorts.iterator();
-                                            long ofPort = ofPortsIter.next();
-                                            if (ofPort >= 0) {
-                                                ovsdbTerminationPointBuilder
-                                                    .setOfport(ofPort);
-                                            } else {
-                                                LOG.debug("Received negative value for ofPort from ovsdb for {} {} {}",
-                                                        bridge.getName(), interfIter.getName(),ofPort);
-                                            }
-                                        }
-                                        Set<Long> ofPortRequests = interfIter
-                                                .getOpenFlowPortRequestColumn().getData();
-                                        if (ofPortRequests != null && !ofPortRequests.isEmpty()) {
-                                            Iterator<Long> ofPortRequestsIter = ofPortRequests.iterator();
-                                            int ofPort = ofPortRequestsIter.next().intValue();
-                                            if (ofPort >= 0) {
-                                                ovsdbTerminationPointBuilder
-                                                    .setOfportRequest(ofPort);
-                                            } else {
-                                                LOG.debug("Received negative value for ofPort from ovsdb for {} {} {}",
-                                                        bridge.getName(), interfIter.getName(),ofPort);
-                                            }
-                                        }
-
-                                        Map<String, String> externalIds = interfIter.getExternalIdsColumn().getData();
-                                        if (externalIds != null && !externalIds.isEmpty()) {
-                                            Set<String> externalIdKeys = externalIds.keySet();
-                                            ArrayList<ExternalIds> externalIdsList = new ArrayList<ExternalIds>();
-                                            String externalIdValue;
-                                            for (String externalIdKey : externalIdKeys) {
-                                                externalIdValue = externalIds.get(externalIdKey);
-                                                if (externalIdKey != null && externalIdValue != null) {
-                                                    externalIdsList.add(new ExternalIdsBuilder()
-                                                            .setExternalIdKey(externalIdKey)
-                                                            .setExternalIdValue(externalIdValue).build());
-                                                }
-                                            }
-                                            ovsdbTerminationPointBuilder.setExternalIds(externalIdsList);
-                                        }
-
-                                        Map<String, String> optionsMap = interfIter.getOptionsColumn().getData();
-                                        if (optionsMap != null && !optionsMap.isEmpty()) {
-                                            List<Options> options = new ArrayList<Options>();
-                                            String optionsValueString;
-                                            OptionsKey optionsKey;
-                                            for (String optionsKeyString : optionsMap.keySet()) {
-                                                optionsValueString = optionsMap.get(optionsKeyString);
-                                                if (optionsKeyString != null && optionsValueString != null) {
-                                                    optionsKey = new OptionsKey(optionsKeyString);
-                                                    options.add(new OptionsBuilder()
-                                                        .setKey(optionsKey)
-                                                        .setValue(optionsValueString).build());
-                                                }
-                                            }
-                                            ovsdbTerminationPointBuilder.setOptions(options);
-                                        }
-
-                                        break;
-                                    }
-                                }
-                            }
-                            entry.addAugmentation(
-                                    OvsdbTerminationPointAugmentation.class,
-                                    ovsdbTerminationPointBuilder.build());
-
-                            tpList.add(entry.build());
-                            nodeBuilder.setTerminationPoint(tpList);
-                            nodeBuilder.addAugmentation(
-                                    OvsdbBridgeAugmentation.class,
-                                    node.get().getAugmentation(
-                                            OvsdbBridgeAugmentation.class));
-                            transaction.merge(LogicalDatastoreType.OPERATIONAL,
-                                    nodePath, nodeBuilder.build());
+        final InstanceIdentifier<Node> connectionIId = getOvsdbConnectionInstance().getInstanceIdentifier();
+        if ( (portUpdatedRows == null && interfaceOldRows == null )
+                || ( interfaceOldRows.isEmpty() && portUpdatedRows.isEmpty())) {
+            return;
+        }
+        Optional<Node> node = readNode(transaction, connectionIId);
+        if (node.isPresent()) {
+            updateTerminationPoints(transaction, node.get());
+        }
+    }
+
+    private void updateTerminationPoints(ReadWriteTransaction transaction, Node node) {
+        for (Entry<UUID, Port> portUpdate : portUpdatedRows.entrySet()) {
+            String portName = null;
+            portName = portUpdate.getValue().getNameColumn().getData();
+            Optional<InstanceIdentifier<Node>> bridgeIid = getTerminationPointBridge(portUpdate.getKey());
+            if (!bridgeIid.isPresent()) {
+                bridgeIid = getTerminationPointBridge( transaction, node, portName);
+            }
+            if (bridgeIid.isPresent()) {
+                NodeId bridgeId = SouthboundMapper.createManagedNodeId(bridgeIid.get());
+                TerminationPointKey tpKey = new TerminationPointKey(new TpId(portName));
+                TerminationPointBuilder tpBuilder = new TerminationPointBuilder();
+                tpBuilder.setKey(tpKey);
+                tpBuilder.setTpId(tpKey.getTpId());
+                InstanceIdentifier<TerminationPoint> tpPath =
+                        getInstanceIdentifier(bridgeIid.get(), portUpdate.getValue());
+                OvsdbTerminationPointAugmentationBuilder tpAugmentationBuilder =
+                        new OvsdbTerminationPointAugmentationBuilder();
+                buildTerminationPoint(transaction, tpPath, tpAugmentationBuilder, node, portUpdate);
+                UUID interfaceUuid = (UUID)portUpdate.getValue().getInterfacesColumn().getData().toArray()[0];
+                if (interfaceUpdatedRows.containsKey(interfaceUuid)) {
+                    buildTerminationPoint(tpAugmentationBuilder, interfaceUpdatedRows.get(interfaceUuid));
+                    interfaceUpdatedRows.remove(interfaceUuid);
+                    interfaceOldRows.remove(interfaceUuid);
+                }
+                tpBuilder.addAugmentation(OvsdbTerminationPointAugmentation.class, tpAugmentationBuilder.build());
+                if (portOldRows.containsKey(portUpdate.getKey()) && !portQosCleared(portUpdate)) {
+                    transaction.merge(LogicalDatastoreType.OPERATIONAL,
+                            tpPath, tpBuilder.build());
+                } else {
+                    transaction.put(LogicalDatastoreType.OPERATIONAL,
+                            tpPath, tpBuilder.build());
+                }
+            }
+        }
+        for (Entry<UUID, Interface> interfaceUpdate : interfaceUpdatedRows.entrySet()) {
+            String interfaceName = null;
+            interfaceName = interfaceUpdatedRows.get(interfaceUpdate.getKey()).getNameColumn().getData();
+            Optional<InstanceIdentifier<Node>> bridgeIid = getTerminationPointBridge( transaction, node, interfaceName);
+            if (bridgeIid.isPresent()) {
+                TerminationPointKey tpKey = new TerminationPointKey(new TpId(interfaceName));
+                TerminationPointBuilder tpBuilder = new TerminationPointBuilder();
+                tpBuilder.setKey(tpKey);
+                tpBuilder.setTpId(tpKey.getTpId());
+                OvsdbTerminationPointAugmentationBuilder tpAugmentationBuilder =
+                        new OvsdbTerminationPointAugmentationBuilder();
+                buildTerminationPoint(tpAugmentationBuilder, interfaceUpdate.getValue());
+                tpBuilder.addAugmentation(OvsdbTerminationPointAugmentation.class, tpAugmentationBuilder.build());
+                NodeId bridgeId = SouthboundMapper.createManagedNodeId(bridgeIid.get());
+                InstanceIdentifier<TerminationPoint> tpPath = InstanceIdentifier
+                        .create(NetworkTopology.class)
+                        .child(Topology.class, new TopologyKey(SouthboundConstants.OVSDB_TOPOLOGY_ID))
+                        .child(Node.class,new NodeKey(bridgeId))
+                        .child(TerminationPoint.class,tpKey);
+                transaction.merge(LogicalDatastoreType.OPERATIONAL,
+                        tpPath, tpBuilder.build());
+            }
+        }
+
+    }
+
+    private void buildTerminationPoint(ReadWriteTransaction transaction,
+            InstanceIdentifier<TerminationPoint> tpPath,
+            OvsdbTerminationPointAugmentationBuilder tpAugmentationBuilder,
+            Node node, Entry<UUID, Port> portUpdate) {
+
+        tpAugmentationBuilder
+                .setName(portUpdate.getValue().getName());
+        tpAugmentationBuilder.setPortUuid(new Uuid(
+                portUpdate.getValue().getUuid().toString()));
+        updatePort(transaction, node, tpPath, portUpdate, tpAugmentationBuilder);
+    }
+
+    private void buildTerminationPoint(OvsdbTerminationPointAugmentationBuilder tpAugmentationBuilder,
+            Interface interfaceUpdate) {
+
+        tpAugmentationBuilder
+                .setName(interfaceUpdate.getName());
+        tpAugmentationBuilder.setInterfaceUuid(new Uuid(
+                interfaceUpdate.getUuid().toString()));
+        updateInterfaces(interfaceUpdate, tpAugmentationBuilder);
+    }
+
+    private Optional<Node> readNode(final ReadWriteTransaction transaction, final InstanceIdentifier<Node> nodePath) {
+        Optional<Node> node = Optional.absent();
+        try {
+            node = transaction.read(
+                    LogicalDatastoreType.OPERATIONAL, nodePath)
+                    .checkedGet();
+        } catch (final ReadFailedException e) {
+            LOG.warn("Read Operational/DS for Node fail! {}",
+                    nodePath, e);
+        }
+        return node;
+    }
+
+    private Optional<InstanceIdentifier<Node>> getTerminationPointBridge(UUID portUuid) {
+        for (UUID bridgeUuid : this.bridgeUpdatedRows.keySet()) {
+            if (this.bridgeUpdatedRows.get(bridgeUuid).getPortsColumn().getData().contains(portUuid)) {
+                return Optional.of(SouthboundMapper.createInstanceIdentifier(getOvsdbConnectionInstance(),
+                        this.bridgeUpdatedRows.get(bridgeUuid)));
+            }
+        }
+        return Optional.absent();
+    }
+
+    @SuppressWarnings("unchecked")
+    private Optional<InstanceIdentifier<Node>> getTerminationPointBridge(
+            final ReadWriteTransaction transaction, Node node, String tpName) {
+        OvsdbNodeAugmentation ovsdbNode = node.getAugmentation(OvsdbNodeAugmentation.class);
+        List<ManagedNodeEntry> managedNodes = ovsdbNode.getManagedNodeEntry();
+        TpId tpId = new TpId(tpName);
+        for ( ManagedNodeEntry managedNodeEntry : managedNodes ) {
+            Node managedNode = readNode(transaction,
+                    (InstanceIdentifier<Node>)managedNodeEntry.getBridgeRef().getValue()).get();
+            for (TerminationPoint tpEntry : managedNode.getTerminationPoint()) {
+                if (tpId.equals(tpEntry.getTpId())) {
+                    return Optional.of((InstanceIdentifier<Node>)managedNodeEntry.getBridgeRef().getValue());
+                }
+            }
+        }
+        return Optional.absent();
+    }
+
+    private void updateInterfaces(Interface interfaceUpdate,
+            final OvsdbTerminationPointAugmentationBuilder ovsdbTerminationPointBuilder) {
+
+        Column<GenericTableSchema, String> typeColumn = interfaceUpdate.getTypeColumn();
+        String type = typeColumn.getData();
+        updateInterface(interfaceUpdate, type,ovsdbTerminationPointBuilder);
+    }
+
+    private void updatePort(final ReadWriteTransaction transaction, final Node node,
+            final InstanceIdentifier<TerminationPoint> tpPath, final Entry<UUID, Port> port,
+            final OvsdbTerminationPointAugmentationBuilder ovsdbTerminationPointBuilder) {
+
+        updateVlan(port.getValue(), ovsdbTerminationPointBuilder);
+        updateVlanTrunks(port.getValue(), ovsdbTerminationPointBuilder);
+        updateVlanMode(port.getValue(), ovsdbTerminationPointBuilder);
+        updateQos(transaction, node, tpPath, port, ovsdbTerminationPointBuilder);
+        updatePortExternalIds(port.getValue(), ovsdbTerminationPointBuilder);
+        updatePortOtherConfig(port.getValue(), ovsdbTerminationPointBuilder);
+    }
+
+    private void updateInterface(final Interface interf,
+            final String type,
+            final OvsdbTerminationPointAugmentationBuilder ovsdbTerminationPointBuilder) {
+
+        ovsdbTerminationPointBuilder.setInterfaceUuid(
+                new Uuid(interf.getUuid().toString()));
+        ovsdbTerminationPointBuilder.setInterfaceType(
+                SouthboundMapper.createInterfaceType(type));
+        updateOfPort(interf, ovsdbTerminationPointBuilder);
+        updateOfPortRequest(interf, ovsdbTerminationPointBuilder);
+        updateInterfaceExternalIds(interf, ovsdbTerminationPointBuilder);
+        updateOptions(interf, ovsdbTerminationPointBuilder);
+        updateInterfaceOtherConfig(interf, ovsdbTerminationPointBuilder);
+        updateInterfaceLldp(interf, ovsdbTerminationPointBuilder);
+        updateInterfaceBfd(interf, ovsdbTerminationPointBuilder);
+        updateInterfaceBfdStatus(interf, ovsdbTerminationPointBuilder);
+        updateInterfacePolicing(interf, ovsdbTerminationPointBuilder);
+    }
+
+    private void updateVlan(final Port port,
+            final OvsdbTerminationPointAugmentationBuilder ovsdbTerminationPointBuilder) {
+
+        Collection<Long> vlanId = port.getTagColumn().getData();
+        if (vlanId.size() > 0) {
+            Iterator<Long> itr = vlanId.iterator();
+            // There are no loops here, just get the first element.
+            int id = itr.next().intValue();
+            ovsdbTerminationPointBuilder.setVlanTag(new VlanId(id));
+        }
+    }
+
+    private void updateVlanTrunks(final Port port,
+            final OvsdbTerminationPointAugmentationBuilder ovsdbTerminationPointBuilder) {
+
+        Set<Long> portTrunks = port.getTrunksColumn().getData();
+        List<Trunks> modelTrunks = new ArrayList<>();
+        if (!portTrunks.isEmpty()) {
+            for (Long trunk: portTrunks) {
+                if (trunk != null) {
+                    modelTrunks.add(new TrunksBuilder()
+                        .setTrunk(new VlanId(trunk.intValue())).build());
+                }
+            }
+            ovsdbTerminationPointBuilder.setTrunks(modelTrunks);
+        }
+    }
+
+    private void updateVlanMode(final Port port,
+            final OvsdbTerminationPointAugmentationBuilder ovsdbTerminationPointBuilder) {
+
+        Collection<String> vlanMode = port.getVlanModeColumn().getData();
+        if (!vlanMode.isEmpty()) {
+            Iterator<String> itr = vlanMode.iterator();
+            String vlanType = itr.next();
+            if (vlanType.equals(SouthboundConstants.VlanModes.ACCESS.getMode())) {
+                ovsdbTerminationPointBuilder
+                    .setVlanMode(OvsdbPortInterfaceAttributes.VlanMode.Access);
+            } else if (vlanType.equals(SouthboundConstants.VlanModes.NATIVE_TAGGED.getMode())) {
+                ovsdbTerminationPointBuilder
+                    .setVlanMode(OvsdbPortInterfaceAttributes.VlanMode.NativeTagged);
+            } else if (vlanType.equals(SouthboundConstants.VlanModes.NATIVE_UNTAGGED.getMode())) {
+                ovsdbTerminationPointBuilder
+                    .setVlanMode(OvsdbPortInterfaceAttributes.VlanMode.NativeUntagged);
+            } else if (vlanType.equals(SouthboundConstants.VlanModes.TRUNK.getMode())) {
+                ovsdbTerminationPointBuilder
+                    .setVlanMode(OvsdbPortInterfaceAttributes.VlanMode.Trunk);
+            } else {
+                LOG.debug("Invalid vlan mode {}.", vlanType);
+            }
+        }
+    }
+
+    @SuppressWarnings("unchecked")
+    private void updateQos(final ReadWriteTransaction transaction, final Node node,
+                           InstanceIdentifier<TerminationPoint> tpPath, final Entry<UUID, Port> port,
+                           final OvsdbTerminationPointAugmentationBuilder ovsdbTerminationPointBuilder) {
+        if (port.getValue() == null) {
+            return;
+        }
+        Collection<UUID> qosUuidCol = port.getValue().getQosColumn().getData();
+        if (!qosUuidCol.isEmpty()) {
+            UUID qosUuid = qosUuidCol.iterator().next();
+            ovsdbTerminationPointBuilder.setQos(new Uuid(qosUuid.toString()));
+
+            NodeId nodeId = node.getNodeId();
+            OvsdbNodeAugmentation ovsdbNode = node.getAugmentation(OvsdbNodeAugmentation.class);
+
+            // Delete an older QoS entry
+            if (portOldRows.containsKey(port.getKey()) && portOldRows.get(port.getKey()).getQosColumn() != null) {
+                Collection<UUID> oldQos = portOldRows.get(port.getKey()).getQosColumn().getData();
+                if (!oldQos.isEmpty()) {
+                    UUID oldQosUuid = oldQos.iterator().next();
+                    if (!oldQosUuid.equals(qosUuid)) {
+                        InstanceIdentifier<QosEntries> oldQosIid = getQosIid(nodeId, ovsdbNode, oldQosUuid);
+                        if (oldQosIid != null) {
+                            InstanceIdentifier<QosEntry> oldPortQosIid = tpPath
+                                .augmentation(OvsdbTerminationPointAugmentation.class)
+                                .child(QosEntry.class,
+                                      new QosEntryKey(new Long(SouthboundConstants.PORT_QOS_LIST_KEY)));
+//                                    new QosEntryKey(new OvsdbQosRef(oldQosIid)));
+                            transaction.delete(LogicalDatastoreType.OPERATIONAL, oldPortQosIid);
                         }
                     }
                 }
             }
+
+            InstanceIdentifier<QosEntries> qosIid = getQosIid(nodeId, ovsdbNode, qosUuid);
+            if (qosIid != null) {
+                List<QosEntry> qosList = new ArrayList<>();
+                OvsdbQosRef qosRef = new OvsdbQosRef(qosIid);
+                qosList.add(new QosEntryBuilder()
+                    .setKey(new QosEntryKey(new Long(SouthboundConstants.PORT_QOS_LIST_KEY)))
+                    .setQosRef(qosRef).build());
+                ovsdbTerminationPointBuilder.setQosEntry(qosList);
+            }
+        }
+    }
+
+    @SuppressWarnings("unchecked")
+    private InstanceIdentifier<QosEntries> getQosIid(NodeId nodeId, OvsdbNodeAugmentation ovsdbNode, UUID qosUuid) {
+        // Search for the QoS entry first in the operational datastore
+        for (QosEntries qosEntry : ovsdbNode.getQosEntries()) {
+            if (qosEntry.getQosUuid().equals(new Uuid(qosUuid.toString()))) {
+                return SouthboundMapper.createInstanceIdentifier(nodeId)
+                        .augmentation(OvsdbNodeAugmentation.class)
+                        .child(QosEntries.class, new QosEntriesKey(qosEntry.getQosId()));
+            }
+        }
+
+        // Search for the QoS entry in the current OVS updates
+        for (Entry<UUID, Qos> qosUpdate : qosUpdatedRows.entrySet()) {
+            Qos qos = qosUpdate.getValue();
+            if (qos.getUuid().equals(qosUuid)) {
+                if (qos.getExternalIdsColumn().getData().containsKey(SouthboundConstants.IID_EXTERNAL_ID_KEY)) {
+                    return (InstanceIdentifier<QosEntries>) SouthboundUtil.deserializeInstanceIdentifier(
+                            qos.getExternalIdsColumn().getData().get(SouthboundConstants.IID_EXTERNAL_ID_KEY));
+                } else {
+                    return SouthboundMapper.createInstanceIdentifier(nodeId)
+                            .augmentation(OvsdbNodeAugmentation.class)
+                            .child(QosEntries.class, new QosEntriesKey(
+                                    new Uri(SouthboundConstants.QOS_URI_PREFIX + "://" + qosUuid.toString())));
+                }
+            }
+        }
+        LOG.debug("QoS UUID {} assigned to port not found in operational node {} or QoS updates", qosUuid, ovsdbNode);
+        return SouthboundMapper.createInstanceIdentifier(nodeId)
+                .augmentation(OvsdbNodeAugmentation.class)
+                .child(QosEntries.class, new QosEntriesKey(
+                        new Uri(SouthboundConstants.QOS_URI_PREFIX + "://" + qosUuid.toString())));
+    }
+
+    private void updateOfPort(final Interface interf,
+            final OvsdbTerminationPointAugmentationBuilder ovsdbTerminationPointBuilder) {
+
+        Set<Long> ofPorts = interf.getOpenFlowPortColumn().getData();
+        if (ofPorts != null && !ofPorts.isEmpty()) {
+            Iterator<Long> ofPortsIter = ofPorts.iterator();
+            long ofPort = ofPortsIter.next();
+            if (ofPort >= 0) {
+                ovsdbTerminationPointBuilder
+                    .setOfport(ofPort);
+            } else {
+                LOG.debug("Received negative value for ofPort from ovsdb for {} {} {}",
+                        interf.getName(),ofPort);
+            }
+        }
+    }
+
+    private void updateOfPortRequest(final Interface interf,
+            final OvsdbTerminationPointAugmentationBuilder ovsdbTerminationPointBuilder) {
+
+        Set<Long> ofPortRequests = null;
+        try {
+            ofPortRequests = interf.getOpenFlowPortRequestColumn().getData();
+        } catch (ColumnSchemaNotFoundException e) {
+            LOG.warn("Cannot find openflow column", e);
+        }
+        if (ofPortRequests != null && !ofPortRequests.isEmpty()) {
+            Iterator<Long> ofPortRequestsIter = ofPortRequests.iterator();
+            int ofPort = ofPortRequestsIter.next().intValue();
+            if (ofPort >= 0) {
+                ovsdbTerminationPointBuilder
+                    .setOfportRequest(ofPort);
+            } else {
+                LOG.debug("Received negative value for ofPort from ovsdb for {} {} {}",
+                        interf.getName(),ofPort);
+            }
+        }
+    }
+
+    private void updateInterfaceExternalIds(final Interface interf,
+            final OvsdbTerminationPointAugmentationBuilder ovsdbTerminationPointBuilder) {
+
+        Map<String, String> interfaceExternalIds =
+                interf.getExternalIdsColumn().getData();
+        if (interfaceExternalIds != null && !interfaceExternalIds.isEmpty()) {
+            Set<String> externalIdKeys = interfaceExternalIds.keySet();
+            List<InterfaceExternalIds> externalIdsList =
+                    new ArrayList<>();
+            String externalIdValue;
+            for (String externalIdKey : externalIdKeys) {
+                externalIdValue = interfaceExternalIds.get(externalIdKey);
+                if (externalIdKey != null && externalIdValue != null) {
+                    externalIdsList.add(new InterfaceExternalIdsBuilder()
+                            .setExternalIdKey(externalIdKey)
+                            .setExternalIdValue(externalIdValue).build());
+                }
+            }
+            ovsdbTerminationPointBuilder.setInterfaceExternalIds(externalIdsList);
+        }
+    }
+
+    private void updatePortExternalIds(final Port port,
+            final OvsdbTerminationPointAugmentationBuilder ovsdbTerminationPointBuilder) {
+
+        Map<String, String> portExternalIds = port.getExternalIdsColumn().getData();
+        if (portExternalIds != null && !portExternalIds.isEmpty()) {
+            Set<String> externalIdKeys = portExternalIds.keySet();
+            List<PortExternalIds> externalIdsList = new ArrayList<>();
+            String externalIdValue;
+            for (String externalIdKey : externalIdKeys) {
+                externalIdValue = portExternalIds.get(externalIdKey);
+                if (externalIdKey != null && externalIdValue != null) {
+                    externalIdsList.add(new PortExternalIdsBuilder()
+                            .setExternalIdKey(externalIdKey)
+                            .setExternalIdValue(externalIdValue).build());
+                }
+            }
+            ovsdbTerminationPointBuilder.setPortExternalIds(externalIdsList);
+        }
+    }
+
+    private void updateOptions(final Interface interf,
+            final OvsdbTerminationPointAugmentationBuilder ovsdbTerminationPointBuilder) {
+
+        Map<String, String> optionsMap = interf.getOptionsColumn().getData();
+        if (optionsMap != null && !optionsMap.isEmpty()) {
+            List<Options> options = new ArrayList<>();
+            String optionsValueString;
+            OptionsKey optionsKey;
+            for (String optionsKeyString : optionsMap.keySet()) {
+                optionsValueString = optionsMap.get(optionsKeyString);
+                if (optionsKeyString != null && optionsValueString != null) {
+                    optionsKey = new OptionsKey(optionsKeyString);
+                    options.add(new OptionsBuilder()
+                        .setKey(optionsKey)
+                        .setValue(optionsValueString).build());
+                }
+            }
+            ovsdbTerminationPointBuilder.setOptions(options);
+        }
+    }
+
+    private void updatePortOtherConfig(final Port port,
+            final OvsdbTerminationPointAugmentationBuilder ovsdbTerminationPointBuilder) {
+
+        Map<String, String> portOtherConfigMap = port.getOtherConfigColumn().getData();
+        if (portOtherConfigMap != null && !portOtherConfigMap.isEmpty()) {
+            List<PortOtherConfigs> portOtherConfigs = new ArrayList<>();
+            String portOtherConfigValueString;
+            for (String portOtherConfigKeyString : portOtherConfigMap.keySet()) {
+                portOtherConfigValueString = portOtherConfigMap.get(portOtherConfigKeyString);
+                if (portOtherConfigKeyString != null && portOtherConfigValueString != null) {
+                    portOtherConfigs.add(new PortOtherConfigsBuilder()
+                        .setOtherConfigKey(portOtherConfigKeyString)
+                        .setOtherConfigValue(portOtherConfigValueString).build());
+                }
+            }
+            ovsdbTerminationPointBuilder.setPortOtherConfigs(portOtherConfigs);
+        }
+    }
+
+    private void updateInterfaceLldp(final Interface interf,
+            final OvsdbTerminationPointAugmentationBuilder ovsdbTerminationPointBuilder) {
+
+        try {
+            Map<String, String> interfaceLldpMap = interf.getLldpColumn().getData();
+            if (interfaceLldpMap != null && !interfaceLldpMap.isEmpty()) {
+                List<InterfaceLldp> interfaceLldpList = new ArrayList<>();
+                for (String interfaceLldpKeyString : interfaceLldpMap.keySet()) {
+                    String interfaceLldpValueString = interfaceLldpMap.get(interfaceLldpKeyString);
+                    if (interfaceLldpKeyString != null && interfaceLldpValueString != null) {
+                        interfaceLldpList.add(new InterfaceLldpBuilder()
+                                .setKey(new InterfaceLldpKey(interfaceLldpKeyString))
+                                .setLldpKey(interfaceLldpKeyString)
+                                .setLldpValue(interfaceLldpValueString)
+                                .build());
+                    }
+                }
+                ovsdbTerminationPointBuilder.setInterfaceLldp(interfaceLldpList);
+            }
+        } catch (SchemaVersionMismatchException e) {
+            schemaMismatchLog("lldp", "Interface", e);
+        }
+    }
+
+    private void updateInterfaceOtherConfig(final Interface interf,
+            final OvsdbTerminationPointAugmentationBuilder ovsdbTerminationPointBuilder) {
+
+        Map<String, String> interfaceOtherConfigMap = interf.getOtherConfigColumn().getData();
+        if (interfaceOtherConfigMap != null && !interfaceOtherConfigMap.isEmpty()) {
+            List<InterfaceOtherConfigs> interfaceOtherConfigs = new ArrayList<>();
+            String interfaceOtherConfigValueString;
+            for (String interfaceOtherConfigKeyString : interfaceOtherConfigMap.keySet()) {
+                interfaceOtherConfigValueString = interfaceOtherConfigMap.get(interfaceOtherConfigKeyString);
+                if (interfaceOtherConfigKeyString != null && interfaceOtherConfigValueString != null) {
+                    interfaceOtherConfigs.add(new InterfaceOtherConfigsBuilder()
+                        .setOtherConfigKey(interfaceOtherConfigKeyString)
+                        .setOtherConfigValue(interfaceOtherConfigValueString).build());
+                }
+            }
+            ovsdbTerminationPointBuilder.setInterfaceOtherConfigs(interfaceOtherConfigs);
+        }
+    }
+
+    private void updateInterfaceBfdStatus(final Interface interf,
+            final OvsdbTerminationPointAugmentationBuilder ovsdbTerminationPointBuilder) {
+
+        try {
+            Map<String, String> interfaceBfdStatusMap = interf.getBfdStatusColumn().getData();
+            if (interfaceBfdStatusMap != null && !interfaceBfdStatusMap.isEmpty()) {
+                List<InterfaceBfdStatus> interfaceBfdStatusList = new ArrayList<>();
+                for (String interfaceBfdStatusKeyString : interfaceBfdStatusMap.keySet()) {
+                    String interfaceBfdStatusValueString = interfaceBfdStatusMap.get(interfaceBfdStatusKeyString);
+                    if (interfaceBfdStatusKeyString != null && interfaceBfdStatusValueString != null) {
+                        interfaceBfdStatusList.add(new InterfaceBfdStatusBuilder()
+                                .setKey(new InterfaceBfdStatusKey(interfaceBfdStatusKeyString))
+                                .setBfdStatusKey(interfaceBfdStatusKeyString)
+                                .setBfdStatusValue(interfaceBfdStatusValueString)
+                                .build());
+                    }
+                }
+                ovsdbTerminationPointBuilder.setInterfaceBfdStatus(interfaceBfdStatusList);
+            }
+        } catch (SchemaVersionMismatchException e) {
+            schemaMismatchLog("bfd", "Interface", e);
+        }
+    }
+
+    private void updateInterfaceBfd(final Interface interf,
+            final OvsdbTerminationPointAugmentationBuilder ovsdbTerminationPointBuilder) {
+
+        try {
+            Map<String, String> interfaceBfdMap = interf.getBfdColumn().getData();
+            if (interfaceBfdMap != null && !interfaceBfdMap.isEmpty()) {
+                List<InterfaceBfd> interfaceBfdList = new ArrayList<>();
+                for (String interfaceBfdKeyString : interfaceBfdMap.keySet()) {
+                    String interfaceBfdValueString = interfaceBfdMap.get(interfaceBfdKeyString);
+                    if (interfaceBfdKeyString != null && interfaceBfdValueString != null) {
+                        interfaceBfdList.add(new InterfaceBfdBuilder()
+                                .setKey(new InterfaceBfdKey(interfaceBfdKeyString))
+                                .setBfdKey(interfaceBfdKeyString)
+                                .setBfdValue(interfaceBfdValueString)
+                                .build());
+                    }
+                }
+                ovsdbTerminationPointBuilder.setInterfaceBfd(interfaceBfdList);
+            }
+        } catch (SchemaVersionMismatchException e) {
+            schemaMismatchLog("bfd", "Interface", e);
+
+        }
+    }
+
+    private void updateInterfacePolicing(final Interface interf,
+            final OvsdbTerminationPointAugmentationBuilder ovsdbTerminationPointBuilder) {
+
+        Long ingressPolicingRate = null;
+        if (interf.getIngressPolicingRateColumn() != null) {
+            ingressPolicingRate = interf.getIngressPolicingRateColumn().getData();
+        }
+        if (ingressPolicingRate != null) {
+            if (ingressPolicingRate >= 0) {
+                ovsdbTerminationPointBuilder
+                    .setIngressPolicingRate(ingressPolicingRate);
+            } else {
+                LOG.debug("Received negative value for ingressPolicingRate from ovsdb for {} {}",
+                        interf.getName(),ingressPolicingRate);
+            }
+        }
+
+        Long ingressPolicingBurst = null;
+        if (interf.getIngressPolicingBurstColumn() != null) {
+            ingressPolicingBurst = interf.getIngressPolicingBurstColumn().getData();
+        }
+        if (ingressPolicingBurst != null) {
+            if (ingressPolicingBurst >= 0) {
+                ovsdbTerminationPointBuilder
+                    .setIngressPolicingBurst(ingressPolicingBurst);
+            } else {
+                LOG.debug("Received negative value for ingressPolicingBurst from ovsdb for {} {}",
+                        interf.getName(),ingressPolicingBurst);
+            }
+        }
+    }
+
+    private boolean portQosCleared(Entry<UUID, Port> portUpdate) {
+        if (portUpdate.getValue().getQosColumn() == null) {
+            return false;
+        }
+        Collection<UUID> newQos = portUpdate.getValue().getQosColumn().getData();
+        if (portOldRows.get(portUpdate.getKey()).getQosColumn() == null) {
+            return false;
+        }
+        Collection<UUID> oldQos = portOldRows.get(portUpdate.getKey()).getQosColumn().getData();
+
+        if (newQos.isEmpty() && !oldQos.isEmpty()) {
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    @SuppressWarnings("unchecked")
+    private InstanceIdentifier<TerminationPoint> getInstanceIdentifier(InstanceIdentifier<Node> bridgeIid,Port port) {
+        if (port.getExternalIdsColumn() != null
+                && port.getExternalIdsColumn().getData() != null
+                && port.getExternalIdsColumn().getData().containsKey(SouthboundConstants.IID_EXTERNAL_ID_KEY)) {
+            String iidString = port.getExternalIdsColumn().getData().get(SouthboundConstants.IID_EXTERNAL_ID_KEY);
+            return (InstanceIdentifier<TerminationPoint>) SouthboundUtil.deserializeInstanceIdentifier(iidString);
+        } else {
+            return bridgeIid.child(TerminationPoint.class, new TerminationPointKey(new TpId(port.getName())));
         }
     }
 }