interfacemanager/interfacemanager-impl/src/main/java/org/opendaylight/genius/interfacemanager/commons/InterfaceManagerCommonUtils.java

   1 /*
   2  * Copyright (c) 2016 Ericsson India Global Services Pvt Ltd. 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
   9 package org.opendaylight.genius.interfacemanager.commons;
  10
  11 import com.google.common.base.Optional;
  12 import com.google.common.util.concurrent.ListenableFuture;
  13 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  14 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  15 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  16 import org.opendaylight.genius.interfacemanager.IfmConstants;
  17 import org.opendaylight.genius.interfacemanager.IfmUtil;
  18 import org.opendaylight.genius.interfacemanager.globals.InterfaceInfo;
  19 import org.opendaylight.genius.interfacemanager.servicebindings.flowbased.utilities.FlowBasedServicesUtils;
  20 import org.opendaylight.genius.mdsalutil.*;
  21 import org.opendaylight.genius.mdsalutil.interfaces.IMdsalApiManager;
  22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.Interfaces;
  23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
  24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.InterfaceKey;
  25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.InterfaceBuilder;
  26 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.PhysAddress;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNodeConnector;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.IfL2vlan;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnectorKey;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeKey;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.idmanager.rev160406.IdManagerService;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406._interface.child.info.InterfaceParentEntry;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406._interface.child.info.InterfaceParentEntryKey;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406._interface.child.info._interface.parent.entry.InterfaceChildEntry;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406._interface.child.info._interface.parent.entry.InterfaceChildEntryBuilder;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406._interface.child.info._interface.parent.entry.InterfaceChildEntryKey;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.IfTunnel;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.IfTunnelBuilder;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.TunnelTypeMplsOverGre;
  45 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  46 import org.slf4j.Logger;
  47 import org.slf4j.LoggerFactory;
  48
  49 import java.math.BigInteger;
  50 import java.util.ArrayList;
  51 import java.util.List;
  52
  53 public class InterfaceManagerCommonUtils {
  54     private static final Logger LOG = LoggerFactory.getLogger(InterfaceManagerCommonUtils.class);
  55     public static NodeConnector getNodeConnectorFromInventoryOperDS(NodeConnectorId nodeConnectorId,
  56                                                                     DataBroker dataBroker) {
  57         NodeId nodeId = IfmUtil.getNodeIdFromNodeConnectorId(nodeConnectorId);
  58         InstanceIdentifier<NodeConnector> ncIdentifier = InstanceIdentifier.builder(Nodes.class)
  59                 .child(Node.class, new NodeKey(nodeId))
  60                 .child(NodeConnector.class, new NodeConnectorKey(nodeConnectorId)).build();
  61
  62         Optional<NodeConnector> nodeConnectorOptional = IfmUtil.read(LogicalDatastoreType.OPERATIONAL,
  63                 ncIdentifier, dataBroker);
  64         if (!nodeConnectorOptional.isPresent()) {
  65             return null;
  66         }
  67         return nodeConnectorOptional.get();
  68     }
  69
  70     public static boolean isNodePresent(DataBroker dataBroker, NodeConnectorId nodeConnectorId){
  71         NodeId nodeID = IfmUtil.getNodeIdFromNodeConnectorId(nodeConnectorId);
  72         InstanceIdentifier<Node> nodeInstanceIdentifier = InstanceIdentifier.builder(Nodes.class).child(Node.class, new NodeKey(nodeID)).build();
  73         Optional<Node> node = IfmUtil.read(LogicalDatastoreType.OPERATIONAL, nodeInstanceIdentifier, dataBroker);
  74
  75         if(node.isPresent()){
  76             return true;
  77         }
  78         return false;
  79     }
  80
  81     public static InstanceIdentifier<Interface> getInterfaceIdentifier(InterfaceKey interfaceKey) {
  82         InstanceIdentifier.InstanceIdentifierBuilder<Interface> interfaceInstanceIdentifierBuilder =
  83                 InstanceIdentifier.builder(Interfaces.class).child(Interface.class, interfaceKey);
  84         return interfaceInstanceIdentifierBuilder.build();
  85     }
  86
  87     public static List<Interface> getAllTunnelInterfaces(DataBroker dataBroker, InterfaceInfo.InterfaceType interfaceType) {
  88         List<Interface> vxlanList = new ArrayList<Interface>();
  89         InstanceIdentifier<Interfaces> interfacesInstanceIdentifier =  InstanceIdentifier.builder(Interfaces.class).build();
  90         Optional<Interfaces> interfacesOptional  = IfmUtil.read(LogicalDatastoreType.CONFIGURATION, interfacesInstanceIdentifier, dataBroker);
  91         if (!interfacesOptional.isPresent()) {
  92             return vxlanList;
  93         }
  94         Interfaces interfaces = interfacesOptional.get();
  95         List<Interface> interfacesList = interfaces.getInterface();
  96         for (Interface iface : interfacesList) {
  97             if(IfmUtil.getInterfaceType(iface) == InterfaceInfo.InterfaceType.VXLAN_TRUNK_INTERFACE &&
  98                     iface.getAugmentation(IfTunnel.class).isInternal()) {
  99                 vxlanList.add(iface);
 100             }
 101         }
 102         return vxlanList;
 103     }
 104
 105     public static Interface getInterfaceFromConfigDS(String interfaceName, DataBroker dataBroker) {
 106         InterfaceKey interfaceKey = new InterfaceKey(interfaceName);
 107         return getInterfaceFromConfigDS(interfaceKey, dataBroker);
 108     }
 109
 110     public static Interface getInterfaceFromConfigDS(InterfaceKey interfaceKey, DataBroker dataBroker) {
 111         InstanceIdentifier<Interface> interfaceId = getInterfaceIdentifier(interfaceKey);
 112         Optional<Interface> interfaceOptional = IfmUtil.read(LogicalDatastoreType.CONFIGURATION, interfaceId, dataBroker);
 113         if (!interfaceOptional.isPresent()) {
 114             return null;
 115         }
 116
 117         return interfaceOptional.get();
 118     }
 119
 120     public static org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface getInterfaceStateFromOperDS(String interfaceName, DataBroker dataBroker) {
 121         InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface> ifStateId =
 122                 IfmUtil.buildStateInterfaceId(interfaceName);
 123         return getInterfaceStateFromOperDS(ifStateId, dataBroker);
 124     }
 125
 126     public static org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface getInterfaceStateFromOperDS
 127             (InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface> ifStateId, DataBroker dataBroker) {
 128         Optional<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface> ifStateOptional =
 129                 IfmUtil.read(LogicalDatastoreType.OPERATIONAL, ifStateId, dataBroker);
 130         if (!ifStateOptional.isPresent()) {
 131             return null;
 132         }
 133
 134         return ifStateOptional.get();
 135     }
 136     public static void makeTunnelIngressFlow(List<ListenableFuture<Void>> futures, IMdsalApiManager mdsalApiManager,
 137                                              IfTunnel tunnel, BigInteger dpnId, long portNo, String interfaceName, int ifIndex, int addOrRemoveFlow) {
 138         LOG.debug("make tunnel ingress flow for {}",interfaceName);
 139         String flowRef = InterfaceManagerCommonUtils.getTunnelInterfaceFlowRef(dpnId, NwConstants.VLAN_INTERFACE_INGRESS_TABLE, interfaceName);
 140         List<MatchInfo> matches = new ArrayList<MatchInfo>();
 141         List<InstructionInfo> mkInstructions = new ArrayList<InstructionInfo>();
 142         if (NwConstants.ADD_FLOW == addOrRemoveFlow) {
 143             matches.add(new MatchInfo(MatchFieldType.in_port, new BigInteger[] {
 144                     dpnId, BigInteger.valueOf(portNo) }));
 145             mkInstructions.add(new InstructionInfo(
 146                     InstructionType.write_metadata, new BigInteger[] {
 147                     MetaDataUtil.getLportTagMetaData(ifIndex).or(BigInteger.ONE),
 148                     MetaDataUtil.METADATA_MASK_LPORT_TAG_SH_FLAG}));
 149             short tableId = (tunnel.getTunnelInterfaceType().isAssignableFrom(TunnelTypeMplsOverGre.class)) ? NwConstants.L3_LFIB_TABLE :
 150                     tunnel.isInternal() ? NwConstants.INTERNAL_TUNNEL_TABLE : NwConstants.DHCP_TABLE_EXTERNAL_TUNNEL;
 151             mkInstructions.add(new InstructionInfo(InstructionType.goto_table, new long[] {tableId}));
 152         }
 153
 154         BigInteger COOKIE_VM_INGRESS_TABLE = new BigInteger("8000001", 16);
 155         FlowEntity flowEntity = MDSALUtil.buildFlowEntity(dpnId, NwConstants.VLAN_INTERFACE_INGRESS_TABLE, flowRef,
 156                 IfmConstants.DEFAULT_FLOW_PRIORITY, interfaceName, 0, 0, COOKIE_VM_INGRESS_TABLE, matches, mkInstructions);
 157         if (NwConstants.ADD_FLOW == addOrRemoveFlow) {
 158             futures.add(mdsalApiManager.installFlow(dpnId, flowEntity));
 159         } else {
 160             futures.add(mdsalApiManager.removeFlow(dpnId, flowEntity));
 161         }
 162     }
 163     public static String getTunnelInterfaceFlowRef(BigInteger dpnId, short tableId, String ifName) {
 164         return new StringBuilder().append(dpnId).append(tableId).append(ifName).toString();
 165     }
 166
 167     public static void setOpStateForInterface(DataBroker broker, String interfaceName, org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus opStatus) {
 168         InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface> interfaceId = IfmUtil.buildStateInterfaceId(interfaceName);
 169         InterfaceBuilder ifaceBuilder = new InterfaceBuilder().setKey(new org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.InterfaceKey(interfaceName));
 170         org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface interfaceData = ifaceBuilder.setOperStatus(opStatus).build();
 171         MDSALUtil.syncUpdate(broker, LogicalDatastoreType.OPERATIONAL, interfaceId, interfaceData);
 172     }
 173
 174     public static void createInterfaceChildEntry( WriteTransaction t,
 175                                                   String parentInterface, String childInterface){
 176         InterfaceParentEntryKey interfaceParentEntryKey = new InterfaceParentEntryKey(parentInterface);
 177         InterfaceChildEntryKey interfaceChildEntryKey = new InterfaceChildEntryKey(childInterface);
 178         InstanceIdentifier<InterfaceChildEntry> intfId =
 179                 InterfaceMetaUtils.getInterfaceChildEntryIdentifier(interfaceParentEntryKey, interfaceChildEntryKey);
 180         InterfaceChildEntryBuilder entryBuilder = new InterfaceChildEntryBuilder().setKey(interfaceChildEntryKey)
 181                 .setChildInterface(childInterface);
 182         t.put(LogicalDatastoreType.CONFIGURATION, intfId, entryBuilder.build(),true);
 183     }
 184
 185     public static org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus
 186     updateStateEntry(Interface interfaceNew, DataBroker dataBroker, WriteTransaction transaction,
 187                      org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface ifState) {
 188         org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus operStatus;
 189         if (!interfaceNew.isEnabled()) {
 190             operStatus = org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus.Down;
 191         } else {
 192             String ncStr = ifState.getLowerLayerIf().get(0);
 193             NodeConnectorId nodeConnectorId = new NodeConnectorId(ncStr);
 194             NodeConnector nodeConnector =
 195                     InterfaceManagerCommonUtils.getNodeConnectorFromInventoryOperDS(nodeConnectorId, dataBroker);
 196             FlowCapableNodeConnector flowCapableNodeConnector =
 197                     nodeConnector.getAugmentation(FlowCapableNodeConnector.class);
 198             //State state = flowCapableNodeConnector.getState();
 199             operStatus = flowCapableNodeConnector == null ? org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus.Down : org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus.Up;
 200         }
 201
 202         String ifName = interfaceNew.getName();
 203         InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface> ifStateId =
 204                 IfmUtil.buildStateInterfaceId(interfaceNew.getName());
 205         InterfaceBuilder ifaceBuilder = new InterfaceBuilder();
 206         ifaceBuilder.setOperStatus(operStatus);
 207         ifaceBuilder.setKey(IfmUtil.getStateInterfaceKeyFromName(ifName));
 208         transaction.merge(LogicalDatastoreType.OPERATIONAL, ifStateId, ifaceBuilder.build());
 209         return operStatus;
 210     }
 211
 212     public static void updateOperStatus(String interfaceName, org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus operStatus,
 213                                         WriteTransaction transaction) {
 214         LOG.debug("updating operational status for interface {}",interfaceName);
 215         InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface> ifChildStateId =
 216                 IfmUtil.buildStateInterfaceId(interfaceName);
 217         InterfaceBuilder ifaceBuilderChild = new InterfaceBuilder();
 218         ifaceBuilderChild.setOperStatus(operStatus);
 219         ifaceBuilderChild.setKey(IfmUtil.getStateInterfaceKeyFromName(interfaceName));
 220         transaction.merge(LogicalDatastoreType.OPERATIONAL, ifChildStateId, ifaceBuilderChild.build());
 221     }
 222
 223     public static void addStateEntry(String interfaceName, WriteTransaction transaction, DataBroker dataBroker, IdManagerService idManager,
 224                                      org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface ifState) {
 225         // allocate lport tag and create interface-if-index map.
 226         // This is done even if interface-state is not present, so that there is no throttling
 227         // on id allocation even when multiple southbound port_up events come in one shot
 228         Integer ifIndex = IfmUtil.allocateId(idManager, IfmConstants.IFM_IDPOOL_NAME, interfaceName);
 229         InterfaceMetaUtils.createLportTagInterfaceMap(transaction, interfaceName, ifIndex);
 230         if(ifState == null){
 231             LOG.debug("could not retrieve interface state corresponding to {}",interfaceName);
 232             return;
 233         }
 234         LOG.debug("adding interface state for {}",interfaceName);
 235         org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus operStatus = ifState.getOperStatus();
 236         PhysAddress physAddress = ifState.getPhysAddress();
 237         org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.AdminStatus adminStatus = ifState.getAdminStatus();
 238         NodeConnectorId nodeConnectorId = new NodeConnectorId(ifState.getLowerLayerIf().get(0));
 239         InterfaceKey interfaceKey = new InterfaceKey(interfaceName);
 240         org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface interfaceInfo =
 241                 InterfaceManagerCommonUtils.getInterfaceFromConfigDS(interfaceKey, dataBroker);
 242
 243         if (interfaceInfo != null && !interfaceInfo.isEnabled()) {
 244             operStatus = org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus.Down;
 245         }
 246
 247         InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface> ifStateId =
 248                 IfmUtil.buildStateInterfaceId(interfaceName);
 249         List<String> childLowerLayerIfList = new ArrayList<>();
 250         childLowerLayerIfList.add(0, nodeConnectorId.getValue());
 251         InterfaceBuilder ifaceBuilder = new InterfaceBuilder().setAdminStatus(adminStatus)
 252                 .setOperStatus(operStatus).setPhysAddress(physAddress).setLowerLayerIf(childLowerLayerIfList);
 253         ifaceBuilder.setIfIndex(ifIndex);
 254
 255         if(interfaceInfo != null){
 256             ifaceBuilder.setType(interfaceInfo.getType());
 257         }
 258         ifaceBuilder.setKey(IfmUtil.getStateInterfaceKeyFromName(interfaceName));
 259         transaction.put(LogicalDatastoreType.OPERATIONAL, ifStateId, ifaceBuilder.build(), true);
 260
 261         // install ingress flow
 262         BigInteger dpId = new BigInteger(IfmUtil.getDpnFromNodeConnectorId(nodeConnectorId));
 263         long portNo = Long.valueOf(IfmUtil.getPortNoFromNodeConnectorId(nodeConnectorId));
 264         if(interfaceInfo != null && interfaceInfo.isEnabled() &&
 265                 ifState.getOperStatus() == org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus.Up) {
 266             List<MatchInfo> matches = FlowBasedServicesUtils.getMatchInfoForVlanPortAtIngressTable(dpId, portNo, interfaceInfo);
 267             FlowBasedServicesUtils.installVlanFlow(dpId, portNo, interfaceInfo, transaction, matches, ifIndex);
 268         }
 269     }
 270
 271     public static org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface addStateEntry(Interface interfaceInfo, String portName, WriteTransaction transaction, IdManagerService idManager,
 272                                                                                                                                               PhysAddress physAddress, org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus operStatus,
 273                                                                                                                                               org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.AdminStatus adminStatus,
 274                                                                                                                                               NodeConnectorId nodeConnectorId) {
 275         LOG.debug("adding interface state for {}",portName);
 276         InterfaceBuilder ifaceBuilder = new InterfaceBuilder();
 277         Integer ifIndex = null;
 278         if (interfaceInfo != null){
 279             if(!interfaceInfo.isEnabled()){
 280                 operStatus = org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus.Down;
 281             }
 282
 283             ifaceBuilder.setType(interfaceInfo.getType());
 284             // retrieve if-index only for northbound configured interfaces
 285             ifIndex = IfmUtil.allocateId(idManager, IfmConstants.IFM_IDPOOL_NAME, portName);
 286             ifaceBuilder.setIfIndex(ifIndex);
 287         }
 288         InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface> ifStateId =
 289                 IfmUtil.buildStateInterfaceId(portName);
 290         List<String> childLowerLayerIfList = new ArrayList<>();
 291         childLowerLayerIfList.add(0, nodeConnectorId.getValue());
 292         ifaceBuilder.setAdminStatus(adminStatus)
 293                 .setOperStatus(operStatus).setPhysAddress(physAddress).setLowerLayerIf(childLowerLayerIfList);
 294         ifaceBuilder.setKey(IfmUtil.getStateInterfaceKeyFromName(portName));
 295         org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface ifState = ifaceBuilder.build();
 296         transaction.put(LogicalDatastoreType.OPERATIONAL, ifStateId, ifState , true);
 297         return ifState;
 298     }
 299
 300     public static void deleteStateEntry(String interfaceName, WriteTransaction transaction) {
 301         LOG.debug("removing interface state entry for {}",interfaceName);
 302         InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface> ifChildStateId =
 303                 IfmUtil.buildStateInterfaceId(interfaceName);
 304         transaction.delete(LogicalDatastoreType.OPERATIONAL, ifChildStateId);
 305     }
 306
 307     public static void deleteInterfaceStateInformation(String interfaceName, WriteTransaction transaction, IdManagerService idManagerService) {
 308         LOG.debug("removing interface state information for {}",interfaceName);
 309         InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface> ifStateId =
 310                 IfmUtil.buildStateInterfaceId(interfaceName);
 311         transaction.delete(LogicalDatastoreType.OPERATIONAL, ifStateId);
 312         InterfaceMetaUtils.removeLportTagInterfaceMap(idManagerService, transaction, interfaceName);
 313     }
 314
 315     // For trunk interfaces, binding to a parent interface which is already bound to another trunk interface should not
 316     // be allowed
 317     public static boolean createInterfaceChildEntryIfNotPresent( DataBroker dataBroker, WriteTransaction t,
 318                                                                  String parentInterface, String childInterface){
 319         InterfaceParentEntryKey interfaceParentEntryKey = new InterfaceParentEntryKey(parentInterface);
 320         InstanceIdentifier<InterfaceParentEntry> interfaceParentEntryIdentifier =
 321                 InterfaceMetaUtils.getInterfaceParentEntryIdentifier(interfaceParentEntryKey);
 322         InterfaceParentEntry interfaceParentEntry =
 323                 InterfaceMetaUtils.getInterfaceParentEntryFromConfigDS(interfaceParentEntryIdentifier, dataBroker);
 324
 325         if(interfaceParentEntry != null){
 326             LOG.error("Trying to bind the same parent interface {} to multiple trunk interfaces. ", parentInterface);
 327             return false;
 328         }
 329
 330         LOG.info("First vlan trunk {} bound on parent-interface {}", childInterface, parentInterface);
 331         InterfaceChildEntryKey interfaceChildEntryKey = new InterfaceChildEntryKey(childInterface);
 332         InstanceIdentifier<InterfaceChildEntry> intfId =
 333                 InterfaceMetaUtils.getInterfaceChildEntryIdentifier(interfaceParentEntryKey, interfaceChildEntryKey);
 334         InterfaceChildEntryBuilder entryBuilder = new InterfaceChildEntryBuilder().setKey(interfaceChildEntryKey)
 335                 .setChildInterface(childInterface);
 336         t.put(LogicalDatastoreType.CONFIGURATION, intfId, entryBuilder.build(),true);
 337         return true;
 338     }
 339
 340     public static boolean deleteParentInterfaceEntry( WriteTransaction t, String parentInterface){
 341         InterfaceParentEntryKey interfaceParentEntryKey = new InterfaceParentEntryKey(parentInterface);
 342         InstanceIdentifier<InterfaceParentEntry> interfaceParentEntryIdentifier = InterfaceMetaUtils.getInterfaceParentEntryIdentifier(interfaceParentEntryKey);
 343         t.delete(LogicalDatastoreType.CONFIGURATION, interfaceParentEntryIdentifier);
 344         return true;
 345     }
 346
 347     /*
 348      * update operational state of interface based on events like tunnel monitoring
 349      */
 350     public static void updateOpState(WriteTransaction transaction, String interfaceName,
 351                                      org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus operStatus){
 352         InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface> ifStateId =
 353                 IfmUtil.buildStateInterfaceId(interfaceName);
 354         LOG.debug("updating tep interface state as {} for {}", operStatus.name(), interfaceName);
 355         InterfaceBuilder ifaceBuilder = new InterfaceBuilder().setOperStatus(operStatus);
 356         ifaceBuilder.setKey(IfmUtil.getStateInterfaceKeyFromName(interfaceName));
 357         transaction.merge(LogicalDatastoreType.OPERATIONAL, ifStateId, ifaceBuilder.build());
 358     }
 359
 360     public static boolean isTunnelInterface(Interface interfaceInfo){
 361         if(interfaceInfo != null && interfaceInfo.getAugmentation(IfTunnel.class) != null){
 362             return true;
 363         }
 364         return false;
 365     }
 366
 367     public static boolean isVlanInterface(Interface interfaceInfo){
 368         if(interfaceInfo != null && interfaceInfo.getAugmentation(IfL2vlan.class) != null){
 369             return true;
 370         }
 371         return false;
 372     }
 373
 374 }