renderers/vpp/src/main/java/org/opendaylight/groupbasedpolicy/renderer/vpp/iface/InterfaceManager.java

   1 /*
   2  * Copyright (c) 2016 Cisco Systems, Inc. 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.groupbasedpolicy.renderer.vpp.iface;
  10
  11 import java.util.concurrent.ExecutionException;
  12 import java.util.concurrent.ExecutorService;
  13
  14 import javax.annotation.Nonnull;
  15 import javax.annotation.Nullable;
  16
  17 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  18 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
  19 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  20 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  21 import org.opendaylight.groupbasedpolicy.renderer.vpp.commands.ConfigCommand;
  22 import org.opendaylight.groupbasedpolicy.renderer.vpp.commands.TapPortCommand;
  23 import org.opendaylight.groupbasedpolicy.renderer.vpp.commands.VhostUserCommand;
  24 import org.opendaylight.groupbasedpolicy.renderer.vpp.commands.VhostUserCommand.VhostUserCommandBuilder;
  25 import org.opendaylight.groupbasedpolicy.renderer.vpp.event.NodeOperEvent;
  26 import org.opendaylight.groupbasedpolicy.renderer.vpp.event.VppEndpointConfEvent;
  27 import org.opendaylight.groupbasedpolicy.renderer.vpp.util.General.Operations;
  28 import org.opendaylight.groupbasedpolicy.renderer.vpp.util.MountedDataBrokerProvider;
  29 import org.opendaylight.groupbasedpolicy.util.DataStoreHelper;
  30 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.has.absolute.location.absolute.location.LocationType;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.has.absolute.location.absolute.location.location.type.ExternalLocationCase;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.has.absolute.location.absolute.location.location.type.ExternalLocationCaseBuilder;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.renderer.rev151103.renderers.renderer.renderer.policy.configuration.endpoints.AddressEndpointWithLocation;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.vpp_renderer.rev160425.config.VppEndpoint;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.vpp_renderer.rev160425.config.vpp.endpoint.InterfaceTypeChoice;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.vpp_renderer.rev160425.config.vpp.endpoint._interface.type.choice.TapCase;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.vpp_renderer.rev160425.config.vpp.endpoint._interface.type.choice.VhostUserCase;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.VhostUserRole;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.VppInterfaceAugmentation;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.interfaces._interface.L2;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.interfaces._interface.L2Builder;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.l2.base.attributes.Interconnection;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.l2.base.attributes.interconnection.BridgeBased;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.l2.base.attributes.interconnection.BridgeBasedBuilder;
  46 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  47 import org.slf4j.Logger;
  48 import org.slf4j.LoggerFactory;
  49
  50 import com.google.common.base.Optional;
  51 import com.google.common.base.Preconditions;
  52 import com.google.common.base.Strings;
  53 import com.google.common.eventbus.Subscribe;
  54 import com.google.common.util.concurrent.AsyncFunction;
  55 import com.google.common.util.concurrent.CheckedFuture;
  56 import com.google.common.util.concurrent.Futures;
  57 import com.google.common.util.concurrent.ListenableFuture;
  58
  59 public class InterfaceManager implements AutoCloseable {
  60
  61     private static final Logger LOG = LoggerFactory.getLogger(InterfaceManager.class);
  62     private final MountedDataBrokerProvider mountDataProvider;
  63     private final VppEndpointLocationProvider vppEndpointLocationProvider;
  64     private final ExecutorService netconfWorker;
  65
  66     public InterfaceManager(@Nonnull MountedDataBrokerProvider mountDataProvider, @Nonnull DataBroker dataProvider,
  67             @Nonnull ExecutorService netconfWorker) {
  68         this.mountDataProvider = Preconditions.checkNotNull(mountDataProvider);
  69         this.netconfWorker = Preconditions.checkNotNull(netconfWorker);
  70         this.vppEndpointLocationProvider = new VppEndpointLocationProvider(dataProvider);
  71     }
  72
  73     @Subscribe
  74     public synchronized void vppEndpointChanged(VppEndpointConfEvent event) {
  75         try {
  76             switch (event.getDtoModificationType()) {
  77                 case CREATED:
  78                     vppEndpointCreated(event.getAfter().get()).get();
  79                     break;
  80                 case UPDATED:
  81                     vppEndpointDeleted(event.getBefore().get()).get();
  82                     vppEndpointCreated(event.getAfter().get()).get();
  83                     break;
  84                 case DELETED:
  85                     vppEndpointDeleted(event.getBefore().get()).get();
  86                     break;
  87             }
  88         } catch (InterruptedException | ExecutionException e) {
  89             LOG.error("Failed to update Vpp Endpoint. {}", event, e);
  90         }
  91     }
  92
  93     private ListenableFuture<Void> vppEndpointCreated(VppEndpoint vppEndpoint) {
  94         InterfaceTypeChoice interfaceTypeChoice = vppEndpoint.getInterfaceTypeChoice();
  95         Optional<ConfigCommand> potentialIfaceCommand = Optional.absent();
  96         if (interfaceTypeChoice instanceof VhostUserCase) {
  97             potentialIfaceCommand = createInterfaceWithoutBdCommand(vppEndpoint, Operations.PUT);
  98         } else if (interfaceTypeChoice instanceof TapCase) {
  99             potentialIfaceCommand = createTapInterfaceWithoutBdCommand(vppEndpoint, Operations.PUT);
 100         }
 101
 102         if (!potentialIfaceCommand.isPresent()) {
 103             LOG.debug("Interface/PUT command was not created for VppEndpoint point {}", vppEndpoint);
 104             return Futures.immediateFuture(null);
 105         }
 106         ConfigCommand ifaceWithoutBdCommand = potentialIfaceCommand.get();
 107         InstanceIdentifier<?> vppNodeIid = vppEndpoint.getVppNodePath();
 108         Optional<DataBroker> potentialVppDataProvider = mountDataProvider.getDataBrokerForMountPoint(vppNodeIid);
 109         if (!potentialVppDataProvider.isPresent()) {
 110             LOG.debug("Cannot get data broker for mount point {}", vppNodeIid);
 111             return Futures.immediateFuture(null);
 112         }
 113         DataBroker vppDataBroker = potentialVppDataProvider.get();
 114         return createIfaceOnVpp(ifaceWithoutBdCommand, vppDataBroker, vppEndpoint, vppNodeIid);
 115     }
 116
 117     private ListenableFuture<Void> createIfaceOnVpp(ConfigCommand createIfaceWithoutBdCommand,
 118             DataBroker vppDataBroker, VppEndpoint vppEndpoint, InstanceIdentifier<?> vppNodeIid) {
 119         ReadWriteTransaction rwTx = vppDataBroker.newReadWriteTransaction();
 120         createIfaceWithoutBdCommand.execute(rwTx);
 121         return Futures.transform(rwTx.submit(), new AsyncFunction<Void, Void>() {
 122
 123             @Override
 124             public ListenableFuture<Void> apply(Void input) {
 125                 LOG.debug("Create interface on VPP command was successful:\nVPP: {}\nCommand: {}", vppNodeIid,
 126                         createIfaceWithoutBdCommand);
 127                 return vppEndpointLocationProvider.createLocationForVppEndpoint(vppEndpoint);
 128             }
 129         }, netconfWorker);
 130     }
 131
 132     private ListenableFuture<Void> vppEndpointDeleted(@Nonnull VppEndpoint vppEndpoint) {
 133         InterfaceTypeChoice interfaceTypeChoice = vppEndpoint.getInterfaceTypeChoice();
 134         Optional<ConfigCommand> potentialIfaceCommand = Optional.absent();
 135         if (interfaceTypeChoice instanceof VhostUserCase) {
 136             potentialIfaceCommand = createInterfaceWithoutBdCommand(vppEndpoint, Operations.DELETE);
 137         } else if (interfaceTypeChoice instanceof TapCase) {
 138             potentialIfaceCommand = createTapInterfaceWithoutBdCommand(vppEndpoint, Operations.DELETE);
 139         }
 140
 141         if (!potentialIfaceCommand.isPresent()) {
 142             LOG.debug("Interface/DELETE command was not created for VppEndpoint point {}", vppEndpoint);
 143             return Futures.immediateFuture(null);
 144         }
 145         ConfigCommand ifaceWithoutBdCommand = potentialIfaceCommand.get();
 146         InstanceIdentifier<?> vppNodeIid = vppEndpoint.getVppNodePath();
 147         Optional<DataBroker> potentialVppDataProvider = mountDataProvider.getDataBrokerForMountPoint(vppNodeIid);
 148         if (!potentialVppDataProvider.isPresent()) {
 149             LOG.debug("Cannot get data broker for mount point {}", vppNodeIid);
 150             return Futures.immediateFuture(null);
 151         }
 152         DataBroker vppDataBroker = potentialVppDataProvider.get();
 153         return deleteIfaceOnVpp(ifaceWithoutBdCommand, vppDataBroker, vppEndpoint, vppNodeIid);
 154     }
 155
 156     private ListenableFuture<Void> deleteIfaceOnVpp(ConfigCommand deleteIfaceWithoutBdCommand,
 157             DataBroker vppDataBroker, VppEndpoint vppEndpoint, InstanceIdentifier<?> vppNodeIid) {
 158         ReadWriteTransaction rwTx = vppDataBroker.newReadWriteTransaction();
 159         deleteIfaceWithoutBdCommand.execute(rwTx);
 160
 161         return Futures.transform(rwTx.submit(), new AsyncFunction<Void, Void>() {
 162
 163             @Override
 164             public ListenableFuture<Void> apply(Void input) {
 165                 LOG.debug("Delete interface on VPP command was successful:\nVPP: {}\nCommand: {}", vppNodeIid,
 166                         deleteIfaceWithoutBdCommand);
 167                 return vppEndpointLocationProvider.deleteLocationForVppEndpoint(vppEndpoint);
 168             }
 169         }, netconfWorker);
 170     }
 171
 172     @Subscribe
 173     public synchronized void vppNodeChanged(NodeOperEvent event) {
 174         switch (event.getDtoModificationType()) {
 175             case CREATED:
 176                 if (event.isAfterConnected()) {
 177                     // TODO read VppEndpoints or cache them during vppEndpointChanged()
 178                 }
 179                 break;
 180             case UPDATED:
 181                 if (!event.isBeforeConnected() && event.isAfterConnected()) {
 182                     // TODO reconciliation - diff between disconnected snapshot and current snapshot
 183                 }
 184                 break;
 185             case DELETED:
 186                 if (event.isBeforeConnected()) {
 187                     // TODO we could do snapshot of VppEndpoints
 188                     // which can be used for reconciliation
 189                 }
 190                 break;
 191         }
 192     }
 193
 194     private static Optional<ConfigCommand> createInterfaceWithoutBdCommand(@Nonnull VppEndpoint vppEp,
 195             @Nonnull Operations operations) {
 196         if (!hasNodeAndInterface(vppEp)) {
 197             LOG.debug("Interface command is not created for {}", vppEp);
 198             return Optional.absent();
 199         }
 200         VhostUserCommandBuilder builder = VhostUserCommand.builder();
 201         builder.setName(vppEp.getVppInterfaceName());
 202         InterfaceTypeChoice interfaceTypeChoice = vppEp.getInterfaceTypeChoice();
 203         if (interfaceTypeChoice instanceof VhostUserCase) {
 204             VhostUserCase vhostUserIface = (VhostUserCase) interfaceTypeChoice;
 205             String socket = vhostUserIface.getSocket();
 206             if (Strings.isNullOrEmpty(socket)) {
 207                 LOG.debug("Vhost user interface command is not created because socket is missing. {}", vppEp);
 208                 return Optional.absent();
 209             }
 210             builder.setSocket(socket);
 211             builder.setRole(VhostUserRole.Client);
 212         }
 213         VhostUserCommand vhostUserCommand =
 214                 builder.setOperation(operations).setDescription(vppEp.getDescription()).build();
 215         return Optional.of(vhostUserCommand);
 216     }
 217
 218     private static Optional<ConfigCommand> createTapInterfaceWithoutBdCommand(@Nonnull VppEndpoint vppEp,
 219             @Nonnull Operations operation) {
 220         if (!hasNodeAndInterface(vppEp)) {
 221             LOG.debug("Interface command is not created for {}", vppEp);
 222             return Optional.absent();
 223         }
 224         TapPortCommand.TapPortCommandBuilder builder = TapPortCommand.builder();
 225         InterfaceTypeChoice interfaceTypeChoice = vppEp.getInterfaceTypeChoice();
 226         if (interfaceTypeChoice instanceof TapCase) {
 227             TapCase tapIface = (TapCase) interfaceTypeChoice;
 228             String name = tapIface.getName();
 229             if (Strings.isNullOrEmpty(name)) {
 230                 LOG.debug("Tap interface command is not created because name is missing. {}", vppEp);
 231                 return Optional.absent();
 232             }
 233             builder.setTapName(name);
 234             builder.setPhysAddress(tapIface.getPhysicalAddress());
 235         }
 236         TapPortCommand tapPortCommand = builder
 237                 .setOperation(operation)
 238                 .setDescription(vppEp.getDescription())
 239                 .setInterfaceName(vppEp.getVppInterfaceName())
 240                 .build();
 241         return Optional.of(tapPortCommand);
 242     }
 243
 244     /**
 245      * Adds bridge domain to an interface if the interface exist.<br>
 246      * It rewrites bridge domain in case it already exist.<br>
 247      * {@link VppEndpointLocationProvider#VPP_ENDPOINT_LOCATION_PROVIDER} will update location
 248      * when the interface is created successfully.<br>
 249      * If the interface does not exist or other problems occur {@link ListenableFuture} will fail
 250      * as {@link Futures#immediateFailedFuture(Throwable)} with {@link Exception}
 251      * containing message in {@link Exception#getMessage()}
 252      *
 253      * @param bridgeDomainName bridge domain
 254      * @param addrEpWithLoc {@link AddressEndpointWithLocation} containing
 255      *        {@link ExternalLocationCase} where
 256      *        {@link ExternalLocationCase#getExternalNodeMountPoint()} MUST NOT be {@code null}
 257      *        and {@link ExternalLocationCase#getExternalNodeConnector()} MUST NOT be {@code null}
 258      * @return {@link ListenableFuture}
 259      */
 260     public synchronized @Nonnull ListenableFuture<Void> addBridgeDomainToInterface(@Nonnull String bridgeDomainName,
 261             @Nonnull AddressEndpointWithLocation addrEpWithLoc) {
 262         ExternalLocationCase epLoc = resolveAndValidateLocation(addrEpWithLoc);
 263         InstanceIdentifier<?> vppNodeIid = epLoc.getExternalNodeMountPoint();
 264         String interfacePath = epLoc.getExternalNodeConnector();
 265
 266         Optional<InstanceIdentifier<Interface>> optInterfaceIid =
 267                 VppPathMapper.interfaceToInstanceIdentifier(interfacePath);
 268         if (!optInterfaceIid.isPresent()) {
 269             return Futures.immediateFailedFuture(
 270                     new Exception("Cannot resolve interface instance-identifier for interface path" + interfacePath));
 271         }
 272         InstanceIdentifier<Interface> interfaceIid = optInterfaceIid.get();
 273
 274         Optional<DataBroker> potentialVppDataProvider = mountDataProvider.getDataBrokerForMountPoint(vppNodeIid);
 275         if (!potentialVppDataProvider.isPresent()) {
 276             return Futures.immediateFailedFuture(new Exception("Cannot get data broker for mount point " + vppNodeIid));
 277         }
 278
 279         ReadWriteTransaction rwTx = potentialVppDataProvider.get().newReadWriteTransaction();
 280         CheckedFuture<Optional<Interface>, ReadFailedException> futureIface =
 281                 rwTx.read(LogicalDatastoreType.CONFIGURATION, interfaceIid);
 282         return Futures.transform(futureIface, new AsyncFunction<Optional<Interface>, Void>() {
 283
 284             @Override
 285             public ListenableFuture<Void> apply(Optional<Interface> optIface) throws Exception {
 286                 if (!optIface.isPresent()) {
 287                     return Futures.immediateFailedFuture(new Exception("Iterface "
 288                             + interfaceIid.firstKeyOf(Interface.class) + " does not exist on node " + vppNodeIid));
 289                 }
 290
 291                 String existingBridgeDomain = resolveBridgeDomain(optIface.get());
 292                 if (bridgeDomainName.equals(existingBridgeDomain)) {
 293                     LOG.debug("Bridge domain {} already exists on interface {}", bridgeDomainName, interfacePath);
 294                     String bridgeDomainPath = VppPathMapper.bridgeDomainToRestPath(bridgeDomainName);
 295                     if (!bridgeDomainPath.equals(epLoc.getExternalNode())) {
 296                         return vppEndpointLocationProvider.replaceLocationForEndpoint(new ExternalLocationCaseBuilder()
 297                             .setExternalNode(bridgeDomainPath)
 298                             .setExternalNodeMountPoint(vppNodeIid)
 299                             .setExternalNodeConnector(interfacePath)
 300                             .build(), addrEpWithLoc.getKey());
 301                     }
 302                     return Futures.immediateFuture(null);
 303                 }
 304
 305                 InstanceIdentifier<L2> l2Iid =
 306                         interfaceIid.builder().augmentation(VppInterfaceAugmentation.class).child(L2.class).build();
 307                 Optional<L2> optL2 = DataStoreHelper.readFromDs(LogicalDatastoreType.CONFIGURATION, l2Iid, rwTx);
 308                 L2Builder l2Builder = (optL2.isPresent()) ? new L2Builder(optL2.get()) : new L2Builder();
 309                 L2 l2 = l2Builder.setInterconnection(new BridgeBasedBuilder().setBridgeDomain(bridgeDomainName).build()).build();
 310                 rwTx.put(LogicalDatastoreType.CONFIGURATION, l2Iid, l2);
 311                 LOG.debug("Adding bridge domain {} to interface {}", bridgeDomainName, interfacePath);
 312                 return Futures.transform(rwTx.submit(), new AsyncFunction<Void, Void>() {
 313
 314                     @Override
 315                     public ListenableFuture<Void> apply(Void input) {
 316                         String bridgeDomainPath = VppPathMapper.bridgeDomainToRestPath(bridgeDomainName);
 317                         return vppEndpointLocationProvider.replaceLocationForEndpoint(new ExternalLocationCaseBuilder()
 318                                 .setExternalNode(bridgeDomainPath)
 319                                 .setExternalNodeMountPoint(vppNodeIid)
 320                                 .setExternalNodeConnector(interfacePath)
 321                                 .build(), addrEpWithLoc.getKey());
 322                     }
 323                 }, netconfWorker);
 324             }
 325         }, netconfWorker);
 326     }
 327
 328     /**
 329      * Removes bridge domain (if exist) from an interface (if exist).<br>
 330      * {@link VppEndpointLocationProvider#VPP_ENDPOINT_LOCATION_PROVIDER} will update endpoint
 331      * location.
 332      * <p>
 333      * If the interface does not exist or other problems occur {@link ListenableFuture} will fail
 334      * as {@link Futures#immediateFailedFuture(Throwable)} with {@link Exception}
 335      * containing message in {@link Exception#getMessage()}
 336      *
 337      * @param addrEpWithLoc {@link AddressEndpointWithLocation} containing
 338      *        {@link ExternalLocationCase} where
 339      *        {@link ExternalLocationCase#getExternalNodeMountPoint()} MUST NOT be {@code null}
 340      *        and {@link ExternalLocationCase#getExternalNodeConnector()} MUST NOT be {@code null}
 341      * @return {@link ListenableFuture}
 342      */
 343     public synchronized @Nonnull ListenableFuture<Void> deleteBridgeDomainFromInterface(
 344             @Nonnull AddressEndpointWithLocation addrEpWithLoc) {
 345         ExternalLocationCase epLoc = resolveAndValidateLocation(addrEpWithLoc);
 346         InstanceIdentifier<?> vppNodeIid = epLoc.getExternalNodeMountPoint();
 347         String interfacePath = epLoc.getExternalNodeConnector();
 348
 349         Optional<InstanceIdentifier<Interface>> optInterfaceIid =
 350                 VppPathMapper.interfaceToInstanceIdentifier(interfacePath);
 351         if (!optInterfaceIid.isPresent()) {
 352             return Futures.immediateFailedFuture(
 353                     new Exception("Cannot resolve interface instance-identifier for interface path" + interfacePath));
 354         }
 355         InstanceIdentifier<Interface> interfaceIid = optInterfaceIid.get();
 356
 357         Optional<DataBroker> potentialVppDataProvider = mountDataProvider.getDataBrokerForMountPoint(vppNodeIid);
 358         if (!potentialVppDataProvider.isPresent()) {
 359             return Futures.immediateFailedFuture(new Exception("Cannot get data broker for mount point " + vppNodeIid));
 360         }
 361
 362         ReadWriteTransaction rwTx = potentialVppDataProvider.get().newReadWriteTransaction();
 363         CheckedFuture<Optional<Interface>, ReadFailedException> futureIface =
 364                 rwTx.read(LogicalDatastoreType.CONFIGURATION, interfaceIid);
 365         return Futures.transform(futureIface, new AsyncFunction<Optional<Interface>, Void>() {
 366
 367             @Override
 368             public ListenableFuture<Void> apply(Optional<Interface> optIface) throws Exception {
 369                 if (!optIface.isPresent()) {
 370                     // interface does not exist so we consider job done
 371                     return Futures.immediateFuture(null);
 372                 }
 373
 374                 String existingBridgeDomain = resolveBridgeDomain(optIface.get());
 375                 if (Strings.isNullOrEmpty(existingBridgeDomain)) {
 376                     LOG.debug("Bridge domain does not exist therefore it is cosidered as"
 377                             + "deleted for interface {}", interfacePath);
 378                     // bridge domain does not exist on interface so we consider job done
 379                     return vppEndpointLocationProvider.replaceLocationForEndpoint(new ExternalLocationCaseBuilder()
 380                             .setExternalNode(null)
 381                             .setExternalNodeMountPoint(vppNodeIid)
 382                             .setExternalNodeConnector(interfacePath)
 383                             .build(), addrEpWithLoc.getKey());
 384                 }
 385
 386                 InstanceIdentifier<L2> l2Iid =
 387                         interfaceIid.builder().augmentation(VppInterfaceAugmentation.class).child(L2.class).build();
 388                 rwTx.delete(LogicalDatastoreType.CONFIGURATION, l2Iid);
 389                 LOG.debug("Deleting bridge domain from interface {}", interfacePath);
 390                 return Futures.transform(rwTx.submit(), new AsyncFunction<Void, Void>() {
 391
 392                     @Override
 393                     public ListenableFuture<Void> apply(Void input) {
 394                         return vppEndpointLocationProvider.replaceLocationForEndpoint(new ExternalLocationCaseBuilder()
 395                                 .setExternalNode(null)
 396                                 .setExternalNodeMountPoint(vppNodeIid)
 397                                 .setExternalNodeConnector(interfacePath)
 398                                 .build(), addrEpWithLoc.getKey());
 399                     }
 400                 }, netconfWorker);
 401             }
 402         }, netconfWorker);
 403     }
 404
 405     private static ExternalLocationCase resolveAndValidateLocation(AddressEndpointWithLocation addrEpWithLoc) {
 406         LocationType locationType = addrEpWithLoc.getAbsoluteLocation().getLocationType();
 407         if (!(locationType instanceof ExternalLocationCase)) {
 408             throw new IllegalArgumentException("Endpoint does not have external location " + addrEpWithLoc);
 409         }
 410         ExternalLocationCase result = (ExternalLocationCase) locationType;
 411         if (result.getExternalNodeMountPoint() == null || result.getExternalNodeConnector() == null) {
 412             throw new IllegalArgumentException(
 413                     "Endpoint does not have external-node-mount-point or external-node-connector " + addrEpWithLoc);
 414         }
 415         return result;
 416     }
 417
 418     private static @Nullable String resolveBridgeDomain(@Nonnull Interface iface) {
 419         VppInterfaceAugmentation vppInterfaceAugmentation = iface.getAugmentation(VppInterfaceAugmentation.class);
 420         L2 existingL2 = vppInterfaceAugmentation.getL2();
 421         if (existingL2 != null) {
 422             Interconnection interconnection = existingL2.getInterconnection();
 423             if (interconnection instanceof BridgeBased) {
 424                 return ((BridgeBased) interconnection).getBridgeDomain();
 425             }
 426         }
 427         return null;
 428     }
 429
 430     private static boolean hasNodeAndInterface(VppEndpoint vppEp) {
 431         if (vppEp.getVppNodePath() == null) {
 432             LOG.debug("vpp-node is missing. {}", vppEp);
 433             return false;
 434         }
 435         if (Strings.isNullOrEmpty(vppEp.getVppInterfaceName())) {
 436             LOG.debug("vpp-interface-name is missing. {}", vppEp);
 437             return false;
 438         }
 439         return true;
 440     }
 441
 442     @Override
 443     public void close() throws Exception {
 444         vppEndpointLocationProvider.close();
 445     }
 446
 447 }