vpnmanager/impl/src/main/java/org/opendaylight/netvirt/vpnmanager/VpnInstanceListener.java

   1 /*
   2  * Copyright (c) 2015 - 2017 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 package org.opendaylight.netvirt.vpnmanager;
   9
  10 import com.google.common.base.Optional;
  11 import com.google.common.util.concurrent.FutureCallback;
  12 import com.google.common.util.concurrent.Futures;
  13 import com.google.common.util.concurrent.ListenableFuture;
  14 import com.google.common.util.concurrent.MoreExecutors;
  15 import java.math.BigInteger;
  16 import java.util.ArrayList;
  17 import java.util.Arrays;
  18 import java.util.Collections;
  19 import java.util.List;
  20 import java.util.concurrent.Callable;
  21 import javax.annotation.PostConstruct;
  22 import javax.inject.Inject;
  23 import javax.inject.Singleton;
  24 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  25 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  26 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  27 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  28 import org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase;
  29 import org.opendaylight.genius.datastoreutils.SingleTransactionDataBroker;
  30 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
  31 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
  32 import org.opendaylight.genius.mdsalutil.FlowEntity;
  33 import org.opendaylight.genius.mdsalutil.InstructionInfo;
  34 import org.opendaylight.genius.mdsalutil.MDSALUtil;
  35 import org.opendaylight.genius.mdsalutil.MatchInfo;
  36 import org.opendaylight.genius.mdsalutil.MetaDataUtil;
  37 import org.opendaylight.genius.mdsalutil.NWUtil;
  38 import org.opendaylight.genius.mdsalutil.NwConstants;
  39 import org.opendaylight.genius.mdsalutil.instructions.InstructionGotoTable;
  40 import org.opendaylight.genius.mdsalutil.instructions.InstructionWriteMetadata;
  41 import org.opendaylight.genius.mdsalutil.interfaces.IMdsalApiManager;
  42 import org.opendaylight.genius.mdsalutil.matches.MatchTunnelId;
  43 import org.opendaylight.genius.utils.SystemPropertyReader;
  44 import org.opendaylight.infrautils.jobcoordinator.JobCoordinator;
  45 import org.opendaylight.infrautils.utils.concurrent.ListenableFutures;
  46 import org.opendaylight.netvirt.fibmanager.api.IFibManager;
  47 import org.opendaylight.yang.gen.v1.urn.huawei.params.xml.ns.yang.l3vpn.rev140815.VpnAfConfig;
  48 import org.opendaylight.yang.gen.v1.urn.huawei.params.xml.ns.yang.l3vpn.rev140815.VpnInstances;
  49 import org.opendaylight.yang.gen.v1.urn.huawei.params.xml.ns.yang.l3vpn.rev140815.vpn.af.config.VpnTargets;
  50 import org.opendaylight.yang.gen.v1.urn.huawei.params.xml.ns.yang.l3vpn.rev140815.vpn.af.config.vpntargets.VpnTarget;
  51 import org.opendaylight.yang.gen.v1.urn.huawei.params.xml.ns.yang.l3vpn.rev140815.vpn.instances.VpnInstance;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.idmanager.rev160406.IdManagerService;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.ExternalTunnelList;
  54 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.external.tunnel.list.ExternalTunnel;
  55 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.rev160406.DcGatewayIpList;
  56 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.rev160406.dc.gateway.ip.list.DcGatewayIp;
  57 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.vpn.id.to.vpn.instance.VpnIds;
  58 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.vpn.instance.op.data.VpnInstanceOpDataEntry;
  59 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.vpn.instance.op.data.VpnInstanceOpDataEntryBuilder;
  60 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.vpn.instance.op.data.vpn.instance.op.data.entry.VpnTargetsBuilder;
  61 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.vpn.instance.op.data.vpn.instance.op.data.entry.vpntargets.VpnTargetBuilder;
  62 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.vpn.instance.op.data.vpn.instance.op.data.entry.vpntargets.VpnTargetKey;
  63 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  64 import org.slf4j.Logger;
  65 import org.slf4j.LoggerFactory;
  66
  67 @Singleton
  68 public class VpnInstanceListener extends AsyncDataTreeChangeListenerBase<VpnInstance, VpnInstanceListener> {
  69     private static final Logger LOG = LoggerFactory.getLogger(VpnInstanceListener.class);
  70     private static final String LOGGING_PREFIX_ADD = "VPN-ADD:";
  71     private static final String LOGGING_PREFIX_DELETE = "VPN-REMOVE:";
  72     private final DataBroker dataBroker;
  73     private final ManagedNewTransactionRunner txRunner;
  74     private final IdManagerService idManager;
  75     private final VpnInterfaceManager vpnInterfaceManager;
  76     private final IFibManager fibManager;
  77     private final VpnOpDataSyncer vpnOpDataNotifier;
  78     private final IMdsalApiManager mdsalManager;
  79     private final JobCoordinator jobCoordinator;
  80
  81     @Inject
  82     public VpnInstanceListener(final DataBroker dataBroker, final IdManagerService idManager,
  83             final VpnInterfaceManager vpnInterfaceManager, final IFibManager fibManager,
  84             final VpnOpDataSyncer vpnOpDataSyncer, final IMdsalApiManager mdsalManager,
  85             final JobCoordinator jobCoordinator) {
  86         super(VpnInstance.class, VpnInstanceListener.class);
  87         this.dataBroker = dataBroker;
  88         this.txRunner = new ManagedNewTransactionRunnerImpl(dataBroker);
  89         this.idManager = idManager;
  90         this.vpnInterfaceManager = vpnInterfaceManager;
  91         this.fibManager = fibManager;
  92         this.vpnOpDataNotifier = vpnOpDataSyncer;
  93         this.mdsalManager = mdsalManager;
  94         this.jobCoordinator = jobCoordinator;
  95     }
  96
  97     @PostConstruct
  98     public void start() {
  99         LOG.info("{} start", getClass().getSimpleName());
 100         registerListener(LogicalDatastoreType.CONFIGURATION, dataBroker);
 101     }
 102
 103     @Override
 104     protected InstanceIdentifier<VpnInstance> getWildCardPath() {
 105         return InstanceIdentifier.create(VpnInstances.class).child(VpnInstance.class);
 106     }
 107
 108     @Override
 109     protected VpnInstanceListener getDataTreeChangeListener() {
 110         return VpnInstanceListener.this;
 111     }
 112
 113     @Override
 114     protected void remove(InstanceIdentifier<VpnInstance> identifier, VpnInstance del) {
 115         LOG.trace("{} remove: VPN event key: {}, value: {}", LOGGING_PREFIX_DELETE, identifier, del);
 116         final String vpnName = del.getVpnInstanceName();
 117         Optional<VpnInstanceOpDataEntry> vpnOpValue;
 118         String primaryRd = VpnUtil.getPrimaryRd(del);
 119
 120         //TODO(vpnteam): Entire code would need refactoring to listen only on the parent object - VPNInstance
 121         try {
 122             vpnOpValue = SingleTransactionDataBroker.syncReadOptional(dataBroker, LogicalDatastoreType.OPERATIONAL,
 123                     VpnUtil.getVpnInstanceOpDataIdentifier(primaryRd));
 124         } catch (ReadFailedException e) {
 125             LOG.error("{} remove: Exception when attempting to retrieve VpnInstanceOpDataEntry for VPN {}. ",
 126                     LOGGING_PREFIX_DELETE,  vpnName, e);
 127             return;
 128         }
 129
 130         if (!vpnOpValue.isPresent()) {
 131             LOG.error("{} remove: Unable to retrieve VpnInstanceOpDataEntry for VPN {}. ", LOGGING_PREFIX_DELETE,
 132                     vpnName);
 133             return;
 134         } else {
 135             jobCoordinator.enqueueJob("VPN-" + vpnName, () ->
 136                 Collections.singletonList(txRunner.callWithNewWriteOnlyTransactionAndSubmit(tx -> {
 137                     VpnInstanceOpDataEntryBuilder builder = new VpnInstanceOpDataEntryBuilder().setVrfId(primaryRd)
 138                             .setVpnState(VpnInstanceOpDataEntry.VpnState.PendingDelete);
 139                     InstanceIdentifier<VpnInstanceOpDataEntry> id =
 140                             VpnUtil.getVpnInstanceOpDataIdentifier(primaryRd);
 141                     tx.merge(LogicalDatastoreType.OPERATIONAL, id, builder.build());
 142
 143                     LOG.info("{} call: Operational status set to PENDING_DELETE for vpn {} with rd {}",
 144                             LOGGING_PREFIX_DELETE, vpnName, primaryRd);
 145                 })), SystemPropertyReader.getDataStoreJobCoordinatorMaxRetries());
 146         }
 147     }
 148
 149     @Override
 150     protected void update(InstanceIdentifier<VpnInstance> identifier,
 151         VpnInstance original, VpnInstance update) {
 152         LOG.trace("VPN-UPDATE: update: VPN event key: {}, value: {}. Ignoring", identifier, update);
 153         String vpnName = update.getVpnInstanceName();
 154         vpnInterfaceManager.updateVpnInterfacesForUnProcessAdjancencies(vpnName);
 155     }
 156
 157     @Override
 158     protected void add(final InstanceIdentifier<VpnInstance> identifier, final VpnInstance value) {
 159         LOG.trace("{} add: Add VPN event key: {}, value: {}", LOGGING_PREFIX_ADD, identifier, value);
 160         final String vpnName = value.getVpnInstanceName();
 161         jobCoordinator.enqueueJob("VPN-" + vpnName, new AddVpnInstanceWorker(dataBroker, value),
 162                 SystemPropertyReader.getDataStoreJobCoordinatorMaxRetries());
 163     }
 164
 165     private class AddVpnInstanceWorker implements Callable<List<ListenableFuture<Void>>> {
 166         private final Logger log = LoggerFactory.getLogger(AddVpnInstanceWorker.class);
 167         VpnInstance vpnInstance;
 168         DataBroker broker;
 169
 170         AddVpnInstanceWorker(DataBroker broker,
 171                 VpnInstance value) {
 172             this.broker = broker;
 173             this.vpnInstance = value;
 174         }
 175
 176         @Override
 177         public List<ListenableFuture<Void>> call() {
 178             // If another renderer(for eg : CSS) needs to be supported, check can be performed here
 179             // to call the respective helpers.
 180             List<ListenableFuture<Void>> futures = new ArrayList<>(2);
 181             futures.add(txRunner.callWithNewWriteOnlyTransactionAndSubmit(confTx -> {
 182                 ListenableFuture<Void> future = txRunner.callWithNewWriteOnlyTransactionAndSubmit(operTx ->
 183                         addVpnInstance(vpnInstance, confTx, operTx));
 184                 ListenableFutures.addErrorLogging(future, LOG, "{} call: error creating VPN {}", LOGGING_PREFIX_ADD,
 185                         vpnInstance.getVpnInstanceName());
 186                 futures.add(future);
 187             }));
 188             Futures.addCallback(Futures.allAsList(futures),
 189                                 new PostAddVpnInstanceWorker(vpnInstance , vpnInstance.getVpnInstanceName()),
 190                                 MoreExecutors.directExecutor());
 191             return futures;
 192         }
 193     }
 194
 195     // TODO Clean up the exception handling
 196     @SuppressWarnings("checkstyle:IllegalCatch")
 197     private void addVpnInstance(VpnInstance value, WriteTransaction writeConfigTxn,
 198         WriteTransaction writeOperTxn) {
 199         if (writeConfigTxn == null) {
 200             ListenableFutures.addErrorLogging(txRunner.callWithNewWriteOnlyTransactionAndSubmit(tx ->
 201                 addVpnInstance(value, tx, writeOperTxn)), LOG, "Error adding VPN instance {}", value);
 202             return;
 203         }
 204         if (writeOperTxn == null) {
 205             ListenableFutures.addErrorLogging(txRunner.callWithNewWriteOnlyTransactionAndSubmit(tx ->
 206                 addVpnInstance(value, writeConfigTxn, tx)), LOG, "Error adding VPN instance {}", value);
 207             return;
 208         }
 209         VpnAfConfig config = value.getIpv4Family();
 210         String vpnInstanceName = value.getVpnInstanceName();
 211
 212         long vpnId = VpnUtil.getUniqueId(idManager, VpnConstants.VPN_IDPOOL_NAME, vpnInstanceName);
 213         if (vpnId == 0) {
 214             LOG.error("{} addVpnInstance: Unable to fetch label from Id Manager. Bailing out of adding operational"
 215                     + " data for Vpn Instance {}", LOGGING_PREFIX_ADD, value.getVpnInstanceName());
 216             return;
 217         }
 218         LOG.info("{} addVpnInstance: VPN Id {} generated for VpnInstanceName {}", LOGGING_PREFIX_ADD, vpnId,
 219                 vpnInstanceName);
 220         String primaryRd = VpnUtil.getPrimaryRd(value);
 221         org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.vpn.instance.to.vpn.id.VpnInstance
 222             vpnInstanceToVpnId = VpnUtil.getVpnInstanceToVpnId(vpnInstanceName, vpnId, primaryRd);
 223
 224         writeConfigTxn.put(LogicalDatastoreType.CONFIGURATION,
 225             VpnOperDsUtils.getVpnInstanceToVpnIdIdentifier(vpnInstanceName),
 226             vpnInstanceToVpnId, WriteTransaction.CREATE_MISSING_PARENTS);
 227
 228         VpnIds vpnIdToVpnInstance = VpnUtil.getVpnIdToVpnInstance(vpnId, value.getVpnInstanceName(),
 229             primaryRd, VpnUtil.isBgpVpn(vpnInstanceName, primaryRd));
 230
 231         writeConfigTxn.put(LogicalDatastoreType.CONFIGURATION,
 232             VpnUtil.getVpnIdToVpnInstanceIdentifier(vpnId),
 233             vpnIdToVpnInstance, WriteTransaction.CREATE_MISSING_PARENTS);
 234
 235         try {
 236             String cachedTransType = fibManager.getConfTransType();
 237             if (cachedTransType.equals("Invalid")) {
 238                 try {
 239                     fibManager.setConfTransType("L3VPN", "VXLAN");
 240                 } catch (Exception e) {
 241                     LOG.error("{} addVpnInstance: Exception caught setting the L3VPN tunnel transportType for vpn {}",
 242                             LOGGING_PREFIX_ADD, vpnInstanceName, e);
 243                 }
 244             } else {
 245                 LOG.debug("{} addVpnInstance: Configured tunnel transport type for L3VPN {} as {}", LOGGING_PREFIX_ADD,
 246                         vpnInstanceName, cachedTransType);
 247             }
 248         } catch (Exception e) {
 249             LOG.error("{} addVpnInstance: Error when trying to retrieve tunnel transport type for L3VPN {}",
 250                     LOGGING_PREFIX_ADD, vpnInstanceName, e);
 251         }
 252
 253         VpnInstanceOpDataEntryBuilder builder =
 254                 new VpnInstanceOpDataEntryBuilder().setVrfId(primaryRd).setVpnId(vpnId)
 255                         .setVpnInstanceName(vpnInstanceName)
 256                         .setVpnState(VpnInstanceOpDataEntry.VpnState.Created)
 257                         .setIpv4Configured(false).setIpv6Configured(false);
 258         if (VpnUtil.isBgpVpn(vpnInstanceName, primaryRd)) {
 259             List<org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.vpn.instance.op.data.vpn
 260                 .instance.op.data.entry.vpntargets.VpnTarget> opVpnTargetList = new ArrayList<>();
 261             builder.setBgpvpnType(VpnInstanceOpDataEntry.BgpvpnType.BGPVPNExternal);
 262             if (value.getL3vni() != null) {
 263                 builder.setL3vni(value.getL3vni());
 264             }
 265             if (value.getType() == VpnInstance.Type.L2) {
 266                 builder.setType(VpnInstanceOpDataEntry.Type.L2);
 267             }
 268             VpnTargets vpnTargets = config.getVpnTargets();
 269             if (vpnTargets != null) {
 270                 List<VpnTarget> vpnTargetList = vpnTargets.getVpnTarget();
 271                 if (vpnTargetList != null) {
 272                     for (VpnTarget vpnTarget : vpnTargetList) {
 273                         VpnTargetBuilder vpnTargetBuilder =
 274                             new VpnTargetBuilder().withKey(new VpnTargetKey(vpnTarget.key().getVrfRTValue()))
 275                                 .setVrfRTType(org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.vpn
 276                                     .instance.op.data.vpn.instance.op.data.entry.vpntargets.VpnTarget.VrfRTType
 277                                     .forValue(vpnTarget.getVrfRTType().getIntValue())).setVrfRTValue(
 278                                 vpnTarget.getVrfRTValue());
 279                         opVpnTargetList.add(vpnTargetBuilder.build());
 280                     }
 281                 }
 282             }
 283             VpnTargetsBuilder vpnTargetsBuilder = new VpnTargetsBuilder().setVpnTarget(opVpnTargetList);
 284             builder.setVpnTargets(vpnTargetsBuilder.build());
 285
 286             List<String> rds = config.getRouteDistinguisher();
 287             builder.setRd(rds);
 288         } else {
 289             builder.setBgpvpnType(VpnInstanceOpDataEntry.BgpvpnType.VPN);
 290         }
 291         writeOperTxn.merge(LogicalDatastoreType.OPERATIONAL,
 292             VpnUtil.getVpnInstanceOpDataIdentifier(primaryRd),
 293             builder.build(), true);
 294         LOG.info("{} addVpnInstance: VpnInstanceOpData populated successfully for vpn {} rd {}", LOGGING_PREFIX_ADD,
 295                 vpnInstanceName, primaryRd);
 296     }
 297
 298     private class PostAddVpnInstanceWorker implements FutureCallback<List<Void>> {
 299         private final Logger log = LoggerFactory.getLogger(PostAddVpnInstanceWorker.class);
 300         VpnInstance vpnInstance;
 301         String vpnName;
 302
 303         PostAddVpnInstanceWorker(VpnInstance vpnInstance, String vpnName) {
 304             this.vpnInstance = vpnInstance;
 305             this.vpnName = vpnName;
 306         }
 307
 308         /**
 309          * This implies that all the future instances have returned success. -- TODO: Confirm this
 310          */
 311         @Override
 312         public void onSuccess(List<Void> voids) {
 313             /*
 314             if rd is null, then its either a router vpn instance (or) a vlan external network vpn instance.
 315             if rd is non-null, then it is a bgpvpn instance
 316              */
 317             VpnAfConfig config = vpnInstance.getIpv4Family();
 318             List<String> rd = config.getRouteDistinguisher();
 319             if (rd == null || addBgpVrf()) {
 320                 notifyTask();
 321                 vpnInterfaceManager.vpnInstanceIsReady(vpnName);
 322             }
 323             log.info("{} onSuccess: Vpn Instance Op Data addition for {} successful.", LOGGING_PREFIX_ADD, vpnName);
 324             VpnInstanceOpDataEntry vpnInstanceOpDataEntry = VpnUtil.getVpnInstanceOpData(dataBroker,
 325                     VpnUtil.getPrimaryRd(vpnInstance));
 326
 327             // bind service on each tunnel interface
 328             //TODO (KIRAN): Add a new listener to handle creation of new DC-GW binding and deletion of existing DC-GW.
 329             if (VpnUtil.isL3VpnOverVxLan(vpnInstance.getL3vni())) { //Handled for L3VPN Over VxLAN
 330                 for (String tunnelInterfaceName: getDcGatewayTunnelInterfaceNameList()) {
 331                     VpnUtil.bindService(vpnInstance.getVpnInstanceName(), tunnelInterfaceName, dataBroker,
 332                             true/*isTunnelInterface*/, jobCoordinator);
 333                 }
 334
 335                 // install flow
 336                 List<MatchInfo> mkMatches = new ArrayList<>();
 337                 mkMatches.add(new MatchTunnelId(BigInteger.valueOf(vpnInstance.getL3vni())));
 338
 339                 List<InstructionInfo> instructions =
 340                         Arrays.asList(new InstructionWriteMetadata(MetaDataUtil.getVpnIdMetadata(vpnInstanceOpDataEntry
 341                                 .getVpnId()), MetaDataUtil.METADATA_MASK_VRFID),
 342                                 new InstructionGotoTable(NwConstants.L3_GW_MAC_TABLE));
 343
 344                 for (BigInteger dpnId: NWUtil.getOperativeDPNs(dataBroker)) {
 345                     String flowRef = getFibFlowRef(dpnId, NwConstants.L3VNI_EXTERNAL_TUNNEL_DEMUX_TABLE,
 346                             vpnName, VpnConstants.DEFAULT_FLOW_PRIORITY);
 347                     FlowEntity flowEntity = MDSALUtil.buildFlowEntity(dpnId,
 348                             NwConstants.L3VNI_EXTERNAL_TUNNEL_DEMUX_TABLE, flowRef, VpnConstants.DEFAULT_FLOW_PRIORITY,
 349                             "VxLAN VPN Tunnel Bind Service", 0, 0, NwConstants.COOKIE_VM_FIB_TABLE,
 350                             mkMatches, instructions);
 351                     mdsalManager.installFlow(dpnId, flowEntity);
 352                 }
 353
 354                 ///////////////////////
 355             }
 356         }
 357
 358         // TODO Clean up the exception handling
 359         @SuppressWarnings("checkstyle:IllegalCatch")
 360         private boolean addBgpVrf() {
 361             VpnAfConfig config = vpnInstance.getIpv4Family();
 362             String primaryRd = VpnUtil.getPrimaryRd(dataBroker, vpnName);
 363             List<VpnTarget> vpnTargetList = config.getVpnTargets().getVpnTarget();
 364
 365             if (vpnTargetList == null) {
 366                 log.error("{} addBgpVrf: vpn target list is empty for vpn {} RD {}", LOGGING_PREFIX_ADD,
 367                         this.vpnName, primaryRd);
 368                 return false;
 369             }
 370             synchronized (vpnName.intern()) {
 371                 fibManager.addVrfTable(primaryRd, null);
 372             }
 373             vpnInterfaceManager.handleVpnsExportingRoutes(this.vpnName, primaryRd);
 374             return true;
 375         }
 376
 377         private void notifyTask() {
 378             vpnOpDataNotifier.notifyVpnOpDataReady(VpnOpDataSyncer.VpnOpDataType.vpnInstanceToId, vpnName);
 379             vpnOpDataNotifier.notifyVpnOpDataReady(VpnOpDataSyncer.VpnOpDataType.vpnOpData, vpnName);
 380         }
 381
 382         /**
 383          * This method is used to handle failure callbacks.
 384          * If more retry needed, the retrycount is decremented and mainworker is executed again.
 385          * After retries completed, rollbackworker is executed.
 386          * If rollbackworker fails, this is a double-fault. Double fault is logged and ignored.
 387          */
 388
 389         @Override
 390         public void onFailure(Throwable throwable) {
 391             log.error("{} onFailure: Job for vpnInstance: {} failed with exception:", LOGGING_PREFIX_ADD, vpnName,
 392                     throwable);
 393             vpnInterfaceManager.vpnInstanceFailed(vpnName);
 394         }
 395     }
 396
 397     protected VpnInstanceOpDataEntry getVpnInstanceOpData(String rd) {
 398         InstanceIdentifier<VpnInstanceOpDataEntry> id = VpnUtil.getVpnInstanceOpDataIdentifier(rd);
 399         try {
 400             return SingleTransactionDataBroker.syncReadOptional(dataBroker, LogicalDatastoreType.OPERATIONAL,
 401                     id).orNull();
 402         } catch (ReadFailedException e) {
 403             throw new RuntimeException("Error reading VPN instance data for " + rd, e);
 404         }
 405     }
 406
 407     private List<String> getDcGatewayTunnelInterfaceNameList() {
 408         List<String> tunnelInterfaceNameList = new ArrayList<>();
 409
 410         InstanceIdentifier<DcGatewayIpList> dcGatewayIpListInstanceIdentifier = InstanceIdentifier
 411                 .create(DcGatewayIpList.class);
 412         Optional<DcGatewayIpList> dcGatewayIpListOptional = VpnUtil.read(dataBroker,
 413                 LogicalDatastoreType.CONFIGURATION, dcGatewayIpListInstanceIdentifier);
 414         if (!dcGatewayIpListOptional.isPresent()) {
 415             LOG.info("No DC gateways configured.");
 416             return tunnelInterfaceNameList;
 417         }
 418         List<DcGatewayIp> dcGatewayIps = dcGatewayIpListOptional.get().getDcGatewayIp();
 419
 420         InstanceIdentifier<ExternalTunnelList> externalTunnelListId = InstanceIdentifier
 421                 .create(ExternalTunnelList.class);
 422
 423         Optional<ExternalTunnelList> externalTunnelListOptional = VpnUtil.read(dataBroker,
 424                 LogicalDatastoreType.OPERATIONAL, externalTunnelListId);
 425         if (externalTunnelListOptional.isPresent()) {
 426             List<ExternalTunnel> externalTunnels = externalTunnelListOptional.get().getExternalTunnel();
 427
 428             List<String> externalTunnelIpList = new ArrayList<>();
 429             for (ExternalTunnel externalTunnel: externalTunnels) {
 430                 externalTunnelIpList.add(externalTunnel.getDestinationDevice());
 431             }
 432
 433             List<String> dcGatewayIpList = new ArrayList<>();
 434             for (DcGatewayIp dcGatewayIp: dcGatewayIps) {
 435                 dcGatewayIpList.add(dcGatewayIp.getIpAddress().getIpv4Address().toString());
 436             }
 437
 438             // Find all externalTunnelIps present in dcGateWayIpList
 439             List<String> externalTunnelIpsInDcGatewayIpList = new ArrayList<>();
 440             for (String externalTunnelIp: externalTunnelIpList) {
 441                 for (String dcGateWayIp: dcGatewayIpList) {
 442                     if (externalTunnelIp.contentEquals(dcGateWayIp)) {
 443                         externalTunnelIpsInDcGatewayIpList.add(externalTunnelIp);
 444                     }
 445                 }
 446             }
 447
 448
 449             for (String externalTunnelIpsInDcGatewayIp: externalTunnelIpsInDcGatewayIpList) {
 450                 for (ExternalTunnel externalTunnel: externalTunnels) {
 451                     if (externalTunnel.getDestinationDevice().contentEquals(externalTunnelIpsInDcGatewayIp)) {
 452                         tunnelInterfaceNameList.add(externalTunnel.getTunnelInterfaceName());
 453                     }
 454                 }
 455             }
 456
 457         }
 458         return tunnelInterfaceNameList;
 459     }
 460
 461     private String getFibFlowRef(BigInteger dpnId, short tableId, String vpnName, int priority) {
 462         return VpnConstants.FLOWID_PREFIX + dpnId + NwConstants.FLOWID_SEPARATOR + tableId
 463                 + NwConstants.FLOWID_SEPARATOR + vpnName + NwConstants.FLOWID_SEPARATOR + priority;
 464     }
 465 }