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
  14 import java.util.LinkedList;
  15 import java.util.Map;
  16 import java.util.concurrent.ConcurrentHashMap;
  17 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  18 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  19 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  20 import org.opendaylight.genius.interfacemanager.IfmConstants;
  21 import org.opendaylight.genius.interfacemanager.IfmUtil;
  22 import org.opendaylight.genius.interfacemanager.globals.InterfaceInfo;
  23 import org.opendaylight.genius.interfacemanager.servicebindings.flowbased.utilities.FlowBasedServicesUtils;
  24 import org.opendaylight.genius.mdsalutil.*;
  25 import org.opendaylight.genius.mdsalutil.interfaces.IMdsalApiManager;
  26 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.Interfaces;
  27 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
  28 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.InterfaceKey;
  29 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.InterfaceBuilder;
  30 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.PhysAddress;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNodeConnector;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.*;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnectorKey;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeKey;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.idmanager.rev160406.IdManagerService;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406._interface.child.info.InterfaceParentEntry;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406._interface.child.info.InterfaceParentEntryKey;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406._interface.child.info._interface.parent.entry.InterfaceChildEntry;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406._interface.child.info._interface.parent.entry.InterfaceChildEntryBuilder;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406._interface.child.info._interface.parent.entry.InterfaceChildEntryKey;
  46
  47 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  48 import org.slf4j.Logger;
  49 import org.slf4j.LoggerFactory;
  50
  51 import java.math.BigInteger;
  52 import java.util.ArrayList;
  53 import java.util.List;
  54
  55 public class InterfaceManagerCommonUtils {
  56     private static final Logger LOG = LoggerFactory.getLogger(InterfaceManagerCommonUtils.class);
  57     private static ConcurrentHashMap<String, Interface> interfaceConfigMap = new ConcurrentHashMap<String, Interface>();
  58     private static ConcurrentHashMap<String, org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface>
  59
  60             interfaceStateMap = new ConcurrentHashMap<String, org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface>();
  61
  62     public static NodeConnector getNodeConnectorFromInventoryOperDS(NodeConnectorId nodeConnectorId,
  63                                                                     DataBroker dataBroker) {
  64         NodeId nodeId = IfmUtil.getNodeIdFromNodeConnectorId(nodeConnectorId);
  65         InstanceIdentifier<NodeConnector> ncIdentifier = InstanceIdentifier.builder(Nodes.class)
  66                 .child(Node.class, new NodeKey(nodeId))
  67                 .child(NodeConnector.class, new NodeConnectorKey(nodeConnectorId)).build();
  68
  69         Optional<NodeConnector> nodeConnectorOptional = IfmUtil.read(LogicalDatastoreType.OPERATIONAL,
  70                 ncIdentifier, dataBroker);
  71         if (!nodeConnectorOptional.isPresent()) {
  72             return null;
  73         }
  74         return nodeConnectorOptional.get();
  75     }
  76
  77     public static boolean isNodePresent(DataBroker dataBroker, NodeConnectorId nodeConnectorId) {
  78         NodeId nodeID = IfmUtil.getNodeIdFromNodeConnectorId(nodeConnectorId);
  79         InstanceIdentifier<Node> nodeInstanceIdentifier = InstanceIdentifier.builder(Nodes.class).child(Node.class, new NodeKey(nodeID)).build();
  80         Optional<Node> node = IfmUtil.read(LogicalDatastoreType.OPERATIONAL, nodeInstanceIdentifier, dataBroker);
  81
  82         if (node.isPresent()) {
  83             return true;
  84         }
  85         return false;
  86     }
  87
  88     public static InstanceIdentifier<Interface> getInterfaceIdentifier(InterfaceKey interfaceKey) {
  89         InstanceIdentifier.InstanceIdentifierBuilder<Interface> interfaceInstanceIdentifierBuilder =
  90                 InstanceIdentifier.builder(Interfaces.class).child(Interface.class, interfaceKey);
  91         return interfaceInstanceIdentifierBuilder.build();
  92     }
  93
  94     public static List<Interface> getAllTunnelInterfaces(DataBroker dataBroker, InterfaceInfo.InterfaceType interfaceType) {
  95         List<Interface> vxlanList = new ArrayList<Interface>();
  96         InstanceIdentifier<Interfaces> interfacesInstanceIdentifier = InstanceIdentifier.builder(Interfaces.class).build();
  97         Optional<Interfaces> interfacesOptional = IfmUtil.read(LogicalDatastoreType.CONFIGURATION, interfacesInstanceIdentifier, dataBroker);
  98         if (!interfacesOptional.isPresent()) {
  99             return vxlanList;
 100         }
 101         Interfaces interfaces = interfacesOptional.get();
 102         List<Interface> interfacesList = interfaces.getInterface();
 103         for (Interface iface : interfacesList) {
 104             if (IfmUtil.getInterfaceType(iface) == InterfaceInfo.InterfaceType.VXLAN_TRUNK_INTERFACE &&
 105                     iface.getAugmentation(IfTunnel.class).isInternal()) {
 106                 vxlanList.add(iface);
 107             }
 108         }
 109         return vxlanList;
 110     }
 111
 112     public static Interface getInterfaceFromConfigDS(String interfaceName, DataBroker dataBroker) {
 113         Interface iface = null;
 114         iface = interfaceConfigMap.get(interfaceName);
 115         if (iface != null) {
 116             return iface;
 117         }
 118         InstanceIdentifier<Interface> interfaceId = getInterfaceIdentifier(new InterfaceKey(interfaceName));
 119         Optional<Interface> interfaceOptional =
 120                 IfmUtil.read(LogicalDatastoreType.CONFIGURATION, interfaceId, dataBroker);
 121         if (interfaceOptional.isPresent()) {
 122             iface = interfaceOptional.get();
 123             interfaceConfigMap.put(iface.getName(), iface);
 124         }
 125
 126         return iface;
 127     }
 128
 129     @Deprecated
 130     public static Interface getInterfaceFromConfigDS(InterfaceKey interfaceKey, DataBroker dataBroker) {
 131         return getInterfaceFromConfigDS(interfaceKey.getName(), dataBroker);
 132     }
 133
 134     public static org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface getInterfaceStateFromOperDS(String interfaceName, DataBroker dataBroker) {
 135         org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface
 136                 ifState =
 137                 interfaceStateMap.get(interfaceName);
 138         if (ifState != null) {
 139             return ifState;
 140         }
 141         Optional<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface> ifStateOptional =
 142                 IfmUtil.read(LogicalDatastoreType.OPERATIONAL,
 143                         IfmUtil.buildStateInterfaceId(interfaceName), dataBroker);
 144         if (ifStateOptional.isPresent()) {
 145             ifState = ifStateOptional.get();
 146             interfaceStateMap.put(ifState.getName(), ifState);
 147         }
 148         return ifState;
 149     }
 150
 151     @Deprecated
 152     public static org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface getInterfaceStateFromOperDS
 153             (InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface> ifStateId, DataBroker dataBroker) {
 154         Optional<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface> ifStateOptional =
 155                 IfmUtil.read(LogicalDatastoreType.OPERATIONAL, ifStateId, dataBroker);
 156         if (!ifStateOptional.isPresent()) {
 157             return null;
 158         }
 159
 160         return ifStateOptional.get();
 161     }
 162
 163     public static void makeTunnelIngressFlow(List<ListenableFuture<Void>> futures, IMdsalApiManager mdsalApiManager,
 164                                              IfTunnel tunnel, BigInteger dpnId, long portNo, String interfaceName, int ifIndex, int addOrRemoveFlow) {
 165         LOG.debug("make tunnel ingress flow for {}", interfaceName);
 166         String flowRef = InterfaceManagerCommonUtils.getTunnelInterfaceFlowRef(dpnId, NwConstants.VLAN_INTERFACE_INGRESS_TABLE, interfaceName);
 167         List<MatchInfo> matches = new ArrayList<MatchInfo>();
 168         List<InstructionInfo> mkInstructions = new ArrayList<InstructionInfo>();
 169         if (NwConstants.ADD_FLOW == addOrRemoveFlow) {
 170             matches.add(new MatchInfo(MatchFieldType.in_port, new BigInteger[]{
 171                     dpnId, BigInteger.valueOf(portNo)}));
 172             mkInstructions.add(new InstructionInfo(
 173                     InstructionType.write_metadata, new BigInteger[]{
 174                     MetaDataUtil.getLportTagMetaData(ifIndex).or(BigInteger.ONE),
 175                     MetaDataUtil.METADATA_MASK_LPORT_TAG_SH_FLAG}));
 176             short tableId = (tunnel.getTunnelInterfaceType().isAssignableFrom(TunnelTypeMplsOverGre.class)) ? NwConstants.L3_LFIB_TABLE :
 177                     tunnel.isInternal() ? NwConstants.INTERNAL_TUNNEL_TABLE : NwConstants.DHCP_TABLE_EXTERNAL_TUNNEL;
 178             mkInstructions.add(new InstructionInfo(InstructionType.goto_table, new long[]{tableId}));
 179         }
 180
 181         BigInteger COOKIE_VM_INGRESS_TABLE = new BigInteger("8000001", 16);
 182         FlowEntity flowEntity = MDSALUtil.buildFlowEntity(dpnId, NwConstants.VLAN_INTERFACE_INGRESS_TABLE, flowRef,
 183                 IfmConstants.DEFAULT_FLOW_PRIORITY, interfaceName, 0, 0, COOKIE_VM_INGRESS_TABLE, matches, mkInstructions);
 184         if (NwConstants.ADD_FLOW == addOrRemoveFlow) {
 185             futures.add(mdsalApiManager.installFlow(dpnId, flowEntity));
 186         } else {
 187             futures.add(mdsalApiManager.removeFlow(dpnId, flowEntity));
 188         }
 189     }
 190
 191     public static String getTunnelInterfaceFlowRef(BigInteger dpnId, short tableId, String ifName) {
 192         return new StringBuilder().append(dpnId).append(tableId).append(ifName).toString();
 193     }
 194
 195     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) {
 196         InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface> interfaceId = IfmUtil.buildStateInterfaceId(interfaceName);
 197         InterfaceBuilder ifaceBuilder = new InterfaceBuilder().setKey(new org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.InterfaceKey(interfaceName));
 198         org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface interfaceData = ifaceBuilder.setOperStatus(opStatus).build();
 199         MDSALUtil.syncUpdate(broker, LogicalDatastoreType.OPERATIONAL, interfaceId, interfaceData);
 200     }
 201
 202     public static void createInterfaceChildEntry(WriteTransaction t,
 203                                                  String parentInterface, String childInterface) {
 204         InterfaceParentEntryKey interfaceParentEntryKey = new InterfaceParentEntryKey(parentInterface);
 205         InterfaceChildEntryKey interfaceChildEntryKey = new InterfaceChildEntryKey(childInterface);
 206         InstanceIdentifier<InterfaceChildEntry> intfId =
 207                 InterfaceMetaUtils.getInterfaceChildEntryIdentifier(interfaceParentEntryKey, interfaceChildEntryKey);
 208         InterfaceChildEntryBuilder entryBuilder = new InterfaceChildEntryBuilder().setKey(interfaceChildEntryKey)
 209                 .setChildInterface(childInterface);
 210         t.put(LogicalDatastoreType.CONFIGURATION, intfId, entryBuilder.build(), true);
 211     }
 212
 213     public static org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus
 214     updateStateEntry(Interface interfaceNew, DataBroker dataBroker, WriteTransaction transaction,
 215                      org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface ifState) {
 216         org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus operStatus;
 217         if (!interfaceNew.isEnabled()) {
 218             operStatus = org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus.Down;
 219         } else {
 220             String ncStr = ifState.getLowerLayerIf().get(0);
 221             NodeConnectorId nodeConnectorId = new NodeConnectorId(ncStr);
 222             NodeConnector nodeConnector =
 223                     InterfaceManagerCommonUtils.getNodeConnectorFromInventoryOperDS(nodeConnectorId, dataBroker);
 224             FlowCapableNodeConnector flowCapableNodeConnector =
 225                     nodeConnector.getAugmentation(FlowCapableNodeConnector.class);
 226             //State state = flowCapableNodeConnector.getState();
 227             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;
 228         }
 229
 230         String ifName = interfaceNew.getName();
 231         InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface> ifStateId =
 232                 IfmUtil.buildStateInterfaceId(interfaceNew.getName());
 233         InterfaceBuilder ifaceBuilder = new InterfaceBuilder();
 234         ifaceBuilder.setOperStatus(operStatus);
 235         ifaceBuilder.setKey(IfmUtil.getStateInterfaceKeyFromName(ifName));
 236         transaction.merge(LogicalDatastoreType.OPERATIONAL, ifStateId, ifaceBuilder.build());
 237         return operStatus;
 238     }
 239
 240     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,
 241                                         WriteTransaction transaction) {
 242         LOG.debug("updating operational status for interface {}", interfaceName);
 243         InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface> ifChildStateId =
 244                 IfmUtil.buildStateInterfaceId(interfaceName);
 245         InterfaceBuilder ifaceBuilderChild = new InterfaceBuilder();
 246         ifaceBuilderChild.setOperStatus(operStatus);
 247         ifaceBuilderChild.setKey(IfmUtil.getStateInterfaceKeyFromName(interfaceName));
 248         transaction.merge(LogicalDatastoreType.OPERATIONAL, ifChildStateId, ifaceBuilderChild.build());
 249     }
 250
 251     public static void addStateEntry(String interfaceName, WriteTransaction transaction, DataBroker dataBroker, IdManagerService idManager,
 252                                      org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface ifState) {
 253         // allocate lport tag and create interface-if-index map.
 254         // This is done even if interface-state is not present, so that there is no throttling
 255         // on id allocation even when multiple southbound port_up events come in one shot
 256         Integer ifIndex = IfmUtil.allocateId(idManager, IfmConstants.IFM_IDPOOL_NAME, interfaceName);
 257         InterfaceMetaUtils.createLportTagInterfaceMap(transaction, interfaceName, ifIndex);
 258         if (ifState == null) {
 259             LOG.debug("could not retrieve interface state corresponding to {}", interfaceName);
 260             return;
 261         }
 262         LOG.debug("adding interface state for {}", interfaceName);
 263         org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus operStatus = ifState.getOperStatus();
 264         PhysAddress physAddress = ifState.getPhysAddress();
 265         org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.AdminStatus adminStatus = ifState.getAdminStatus();
 266         NodeConnectorId nodeConnectorId = new NodeConnectorId(ifState.getLowerLayerIf().get(0));
 267         InterfaceKey interfaceKey = new InterfaceKey(interfaceName);
 268         org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface interfaceInfo =
 269                 InterfaceManagerCommonUtils.getInterfaceFromConfigDS(interfaceKey, dataBroker);
 270
 271         if (interfaceInfo != null && !interfaceInfo.isEnabled()) {
 272             operStatus = org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus.Down;
 273         }
 274
 275         InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface> ifStateId =
 276                 IfmUtil.buildStateInterfaceId(interfaceName);
 277         List<String> childLowerLayerIfList = new ArrayList<>();
 278         childLowerLayerIfList.add(0, nodeConnectorId.getValue());
 279         InterfaceBuilder ifaceBuilder = new InterfaceBuilder().setAdminStatus(adminStatus)
 280                 .setOperStatus(operStatus).setPhysAddress(physAddress).setLowerLayerIf(childLowerLayerIfList);
 281         ifaceBuilder.setIfIndex(ifIndex);
 282
 283         if (interfaceInfo != null) {
 284             ifaceBuilder.setType(interfaceInfo.getType());
 285         }
 286         ifaceBuilder.setKey(IfmUtil.getStateInterfaceKeyFromName(interfaceName));
 287         transaction.put(LogicalDatastoreType.OPERATIONAL, ifStateId, ifaceBuilder.build(), true);
 288
 289         // install ingress flow
 290         BigInteger dpId = new BigInteger(IfmUtil.getDpnFromNodeConnectorId(nodeConnectorId));
 291         long portNo = Long.valueOf(IfmUtil.getPortNoFromNodeConnectorId(nodeConnectorId));
 292         if (interfaceInfo != null && interfaceInfo.isEnabled() &&
 293                 ifState.getOperStatus() == org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus.Up) {
 294             List<MatchInfo> matches = FlowBasedServicesUtils.getMatchInfoForVlanPortAtIngressTable(dpId, portNo, interfaceInfo);
 295             FlowBasedServicesUtils.installVlanFlow(dpId, portNo, interfaceInfo, transaction, matches, ifIndex);
 296         }
 297     }
 298
 299     public static org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface addStateEntry(Interface interfaceInfo, String interfaceName, WriteTransaction transaction, IdManagerService idManager,
 300                                                                                                                                               PhysAddress physAddress, org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus operStatus,
 301                                                                                                                                               org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.AdminStatus adminStatus,
 302                                                                                                                                               NodeConnectorId nodeConnectorId) {
 303         LOG.debug("adding interface state for {}", interfaceName);
 304         InterfaceBuilder ifaceBuilder = new InterfaceBuilder();
 305         Integer ifIndex = null;
 306         if (interfaceInfo != null) {
 307             if (!interfaceInfo.isEnabled()) {
 308                 operStatus = org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus.Down;
 309             }
 310
 311             ifaceBuilder.setType(interfaceInfo.getType());
 312             // retrieve if-index only for northbound configured interfaces
 313             ifIndex = IfmUtil.allocateId(idManager, IfmConstants.IFM_IDPOOL_NAME, interfaceName);
 314             ifaceBuilder.setIfIndex(ifIndex);
 315             InterfaceMetaUtils.createLportTagInterfaceMap(transaction, interfaceName, ifIndex);
 316         }
 317         InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface> ifStateId =
 318                 IfmUtil.buildStateInterfaceId(interfaceName);
 319         List<String> childLowerLayerIfList = new ArrayList<>();
 320         childLowerLayerIfList.add(0, nodeConnectorId.getValue());
 321         ifaceBuilder.setAdminStatus(adminStatus)
 322                 .setOperStatus(operStatus).setPhysAddress(physAddress).setLowerLayerIf(childLowerLayerIfList);
 323         ifaceBuilder.setKey(IfmUtil.getStateInterfaceKeyFromName(interfaceName));
 324         org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface ifState = ifaceBuilder.build();
 325         transaction.put(LogicalDatastoreType.OPERATIONAL, ifStateId, ifState, true);
 326         return ifState;
 327     }
 328
 329     public static void deleteStateEntry(String interfaceName, WriteTransaction transaction) {
 330         LOG.debug("removing interface state entry for {}", interfaceName);
 331         InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface> ifChildStateId =
 332                 IfmUtil.buildStateInterfaceId(interfaceName);
 333         transaction.delete(LogicalDatastoreType.OPERATIONAL, ifChildStateId);
 334     }
 335
 336     public static void deleteInterfaceStateInformation(String interfaceName, WriteTransaction transaction, IdManagerService idManagerService) {
 337         LOG.debug("removing interface state information for {}", interfaceName);
 338         InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface> ifStateId =
 339                 IfmUtil.buildStateInterfaceId(interfaceName);
 340         transaction.delete(LogicalDatastoreType.OPERATIONAL, ifStateId);
 341         InterfaceMetaUtils.removeLportTagInterfaceMap(idManagerService, transaction, interfaceName);
 342     }
 343
 344     // For trunk interfaces, binding to a parent interface which is already bound to another trunk interface should not
 345     // be allowed
 346     public static boolean createInterfaceChildEntryIfNotPresent(DataBroker dataBroker, WriteTransaction t,
 347                                                                 String parentInterface, String childInterface) {
 348         InterfaceParentEntryKey interfaceParentEntryKey = new InterfaceParentEntryKey(parentInterface);
 349         InstanceIdentifier<InterfaceParentEntry> interfaceParentEntryIdentifier =
 350                 InterfaceMetaUtils.getInterfaceParentEntryIdentifier(interfaceParentEntryKey);
 351         InterfaceParentEntry interfaceParentEntry =
 352                 InterfaceMetaUtils.getInterfaceParentEntryFromConfigDS(interfaceParentEntryIdentifier, dataBroker);
 353
 354         if (interfaceParentEntry != null) {
 355             LOG.error("Trying to bind the same parent interface {} to multiple trunk interfaces. ", parentInterface);
 356             return false;
 357         }
 358
 359         LOG.info("First vlan trunk {} bound on parent-interface {}", childInterface, parentInterface);
 360         InterfaceChildEntryKey interfaceChildEntryKey = new InterfaceChildEntryKey(childInterface);
 361         InstanceIdentifier<InterfaceChildEntry> intfId =
 362                 InterfaceMetaUtils.getInterfaceChildEntryIdentifier(interfaceParentEntryKey, interfaceChildEntryKey);
 363         InterfaceChildEntryBuilder entryBuilder = new InterfaceChildEntryBuilder().setKey(interfaceChildEntryKey)
 364                 .setChildInterface(childInterface);
 365         t.put(LogicalDatastoreType.CONFIGURATION, intfId, entryBuilder.build(), true);
 366         return true;
 367     }
 368
 369     public static boolean deleteParentInterfaceEntry(WriteTransaction t, String parentInterface) {
 370         InterfaceParentEntryKey interfaceParentEntryKey = new InterfaceParentEntryKey(parentInterface);
 371         InstanceIdentifier<InterfaceParentEntry> interfaceParentEntryIdentifier = InterfaceMetaUtils.getInterfaceParentEntryIdentifier(interfaceParentEntryKey);
 372         t.delete(LogicalDatastoreType.CONFIGURATION, interfaceParentEntryIdentifier);
 373         return true;
 374     }
 375
 376     /*
 377      * update operational state of interface based on events like tunnel monitoring
 378      */
 379     public static void updateOpState(WriteTransaction transaction, String interfaceName,
 380                                      org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus operStatus) {
 381         InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface> ifStateId =
 382                 IfmUtil.buildStateInterfaceId(interfaceName);
 383         LOG.debug("updating tep interface state as {} for {}", operStatus.name(), interfaceName);
 384         InterfaceBuilder ifaceBuilder = new InterfaceBuilder().setOperStatus(operStatus);
 385         ifaceBuilder.setKey(IfmUtil.getStateInterfaceKeyFromName(interfaceName));
 386         transaction.merge(LogicalDatastoreType.OPERATIONAL, ifStateId, ifaceBuilder.build(), false);
 387     }
 388
 389     public static boolean isTunnelInterface(Interface interfaceInfo) {
 390         if (interfaceInfo != null && interfaceInfo.getAugmentation(IfTunnel.class) != null) {
 391             return true;
 392         }
 393         return false;
 394     }
 395
 396     public static boolean isVlanInterface(Interface interfaceInfo) {
 397         if (interfaceInfo != null && interfaceInfo.getAugmentation(IfL2vlan.class) != null) {
 398             return true;
 399         }
 400         return false;
 401     }
 402
 403     // Cache Util methods
 404     public static void addInterfaceToCache(Interface iface) {
 405         interfaceConfigMap.put(iface.getName(), iface);
 406     }
 407
 408     public static void removeFromInterfaceCache(Interface iface) {
 409         interfaceConfigMap.remove(iface.getName());
 410     }
 411
 412     public static void addInterfaceStateToCache(org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface iface) {
 413         interfaceStateMap.put(iface.getName(), iface);
 414     }
 415
 416     public static void removeFromInterfaceStateCache(org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface iface) {
 417         interfaceStateMap.remove(iface.getName());
 418     }
 419
 420     public static List<BigInteger> getListOfDpns(DataBroker broker) {
 421         List<BigInteger> dpnsList = new LinkedList<>();
 422         InstanceIdentifier<Nodes> nodesInstanceIdentifier = InstanceIdentifier.builder(Nodes.class).build();
 423         Optional<Nodes> nodesOptional = MDSALUtil.read(broker, LogicalDatastoreType.OPERATIONAL, nodesInstanceIdentifier);
 424         if (!nodesOptional.isPresent()) {
 425             return dpnsList;
 426         }
 427         Nodes nodes = nodesOptional.get();
 428         List<Node> nodeList = nodes.getNode();
 429         for (Node node : nodeList) {
 430             NodeId nodeId = node.getId();
 431             if (nodeId == null) {
 432                 continue;
 433             }
 434             BigInteger dpnId = MDSALUtil.getDpnIdFromNodeName(nodeId);
 435             dpnsList.add(dpnId);
 436         }
 437         return dpnsList;
 438     }
 439
 440     public static org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface getInterfaceStateForUnknownDpn(
 441             String interfaceName, DataBroker dataBroker) {
 442         String parentInterface;
 443         org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface ifState = null;
 444         List<BigInteger> listOfDpns = InterfaceManagerCommonUtils.getListOfDpns(dataBroker);
 445         for (BigInteger dpnId : listOfDpns) {
 446             parentInterface = new StringBuilder().append(dpnId).append(IfmConstants.OF_URI_SEPARATOR).append(interfaceName).toString();
 447             ifState = InterfaceManagerCommonUtils.getInterfaceStateFromOperDS(parentInterface, dataBroker);
 448             if (ifState != null) {
 449                 break;
 450             }
 451         }
 452         return ifState;
 453     }
 454
 455     public static org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface getInterfaceStateFromDS(
 456             String interfaceName) {
 457         org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface ifState = null;
 458         for (Map.Entry<String, org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface>
 459                 entry : interfaceStateMap.entrySet()) {
 460             if (entry.getKey().contains(interfaceName)) {
 461                 ifState = entry.getValue();
 462             }
 463         }
 464         return ifState;
 465     }
 466 }