bgp/openconfig-state/src/main/java/org/opendaylight/protocol/bgp/state/NeighborUtil.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.protocol.bgp.state;
  10
  11 import com.google.common.primitives.UnsignedLong;
  12 import java.math.BigDecimal;
  13 import java.math.BigInteger;
  14 import java.util.ArrayList;
  15 import java.util.HashSet;
  16 import java.util.List;
  17 import java.util.Objects;
  18 import java.util.Optional;
  19 import java.util.Set;
  20 import java.util.stream.Collectors;
  21 import javax.annotation.Nonnull;
  22 import javax.annotation.Nullable;
  23 import org.opendaylight.protocol.bgp.openconfig.spi.BGPTableTypeRegistryConsumer;
  24 import org.opendaylight.protocol.bgp.rib.spi.state.BGPAfiSafiState;
  25 import org.opendaylight.protocol.bgp.rib.spi.state.BGPErrorHandlingState;
  26 import org.opendaylight.protocol.bgp.rib.spi.state.BGPGracelfulRestartState;
  27 import org.opendaylight.protocol.bgp.rib.spi.state.BGPPeerMessagesState;
  28 import org.opendaylight.protocol.bgp.rib.spi.state.BGPPeerState;
  29 import org.opendaylight.protocol.bgp.rib.spi.state.BGPSessionState;
  30 import org.opendaylight.protocol.bgp.rib.spi.state.BGPTimersState;
  31 import org.opendaylight.protocol.bgp.rib.spi.state.BGPTransportState;
  32 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.multiprotocol.rev151009.bgp.common.afi.safi.list.AfiSafi;
  33 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.multiprotocol.rev151009.bgp.common.afi.safi.list.AfiSafiBuilder;
  34 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.operational.rev151009.BgpNeighborState.SessionState;
  35 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.operational.rev151009.bgp.neighbor.prefix.counters_state.PrefixesBuilder;
  36 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.graceful.restart.GracefulRestart;
  37 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.graceful.restart.GracefulRestartBuilder;
  38 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.neighbor.group.AfiSafis;
  39 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.neighbor.group.AfiSafisBuilder;
  40 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.neighbor.group.ErrorHandling;
  41 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.neighbor.group.ErrorHandlingBuilder;
  42 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.neighbor.group.State;
  43 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.neighbor.group.StateBuilder;
  44 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.neighbor.group.Timers;
  45 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.neighbor.group.TimersBuilder;
  46 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.neighbor.group.Transport;
  47 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.neighbor.group.TransportBuilder;
  48 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.neighbors.Neighbor;
  49 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.neighbors.NeighborBuilder;
  50 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.top.bgp.Neighbors;
  51 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.top.bgp.NeighborsBuilder;
  52 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.types.rev151009.ADDPATHS;
  53 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.types.rev151009.ASN32;
  54 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.types.rev151009.AfiSafiType;
  55 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.types.rev151009.BgpCapability;
  56 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.types.rev151009.GRACEFULRESTART;
  57 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.types.rev151009.MPBGP;
  58 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.types.rev151009.ROUTEREFRESH;
  59 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Timeticks;
  60 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.BgpNeighborStateAugmentation;
  61 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.BgpNeighborStateAugmentationBuilder;
  62 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.NeighborAfiSafiGracefulRestartStateAugmentation;
  63 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.NeighborAfiSafiGracefulRestartStateAugmentationBuilder;
  64 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.NeighborAfiSafiStateAugmentation;
  65 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.NeighborAfiSafiStateAugmentationBuilder;
  66 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.NeighborErrorHandlingStateAugmentation;
  67 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.NeighborErrorHandlingStateAugmentationBuilder;
  68 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.NeighborGracefulRestartStateAugmentation;
  69 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.NeighborGracefulRestartStateAugmentationBuilder;
  70 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.NeighborStateAugmentation;
  71 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.NeighborStateAugmentationBuilder;
  72 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.NeighborTimersStateAugmentation;
  73 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.NeighborTimersStateAugmentationBuilder;
  74 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.NeighborTransportStateAugmentation;
  75 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.NeighborTransportStateAugmentationBuilder;
  76 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.network.instances.network.instance.protocols.protocol.bgp.neighbors.neighbor.state.MessagesBuilder;
  77 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.network.instances.network.instance.protocols.protocol.bgp.neighbors.neighbor.state.messages.Received;
  78 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.network.instances.network.instance.protocols.protocol.bgp.neighbors.neighbor.state.messages.ReceivedBuilder;
  79 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.network.instances.network.instance.protocols.protocol.bgp.neighbors.neighbor.state.messages.Sent;
  80 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.network.instances.network.instance.protocols.protocol.bgp.neighbors.neighbor.state.messages.SentBuilder;
  81 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.rib.TablesKey;
  82
  83 /**
  84  * Util for create OpenConfig Neighbor with corresponding openConfig state.
  85  */
  86 public final class NeighborUtil {
  87     private NeighborUtil() {
  88         throw new UnsupportedOperationException();
  89     }
  90
  91     /**
  92      * Build a Openconfig Neighbors container with all Neighbors Stats from a list of
  93      * BGPPeerGroupState.
  94      *
  95      * @param peerStats            List of BGPPeerState containing Neighbor state counters
  96      * @param bgpTableTypeRegistry BGP TableType Registry
  97      * @return Openconfig Neighbors Stats
  98      */
  99     @Nullable
 100     public static Neighbors buildNeighbors(@Nonnull final List<BGPPeerState> peerStats,
 101             @Nonnull final BGPTableTypeRegistryConsumer bgpTableTypeRegistry) {
 102         if (peerStats.isEmpty()) {
 103             return null;
 104         }
 105         return new NeighborsBuilder().setNeighbor(peerStats.stream()
 106                 .filter(Objects::nonNull)
 107                 .map(neighbor -> buildNeighbor(neighbor, bgpTableTypeRegistry))
 108                 .collect(Collectors.toList())).build();
 109     }
 110
 111     /**
 112      * Build a list of neighbors containing Operational State from a list of BGPPeerState.
 113      *
 114      * @param neighbor containing Neighbor state counters
 115      * @return neighbor containing Neighbor State
 116      */
 117     @Nullable
 118     public static Neighbor buildNeighbor(@Nonnull final BGPPeerState neighbor,
 119             @Nonnull final BGPTableTypeRegistryConsumer bgpTableTypeRegistry) {
 120         return new NeighborBuilder()
 121                 .setNeighborAddress(neighbor.getNeighborAddress())
 122                 .setState(buildNeighborState(neighbor.getBGPSessionState(), neighbor.getBGPPeerMessagesState()))
 123                 .setTimers(buildTimer(neighbor.getBGPTimersState()))
 124                 .setTransport(buildTransport(neighbor.getBGPTransportState()))
 125                 .setErrorHandling(buildErrorHandling(neighbor.getBGPErrorHandlingState()))
 126                 .setGracefulRestart(buildGracefulRestart(neighbor.getBGPGracelfulRestart()))
 127                 .setAfiSafis(buildAfisSafis(neighbor, bgpTableTypeRegistry))
 128                 .build();
 129     }
 130
 131     /**
 132      * Builds Neighbor State from BGPPeerState counters.
 133      *
 134      * @param sessionState         BGPPeerState containing Operational state counters
 135      * @param bgpPeerMessagesState message state
 136      * @return Neighbor State
 137      */
 138     @Nullable
 139     public static State buildNeighborState(@Nullable final BGPSessionState sessionState,
 140             final BGPPeerMessagesState bgpPeerMessagesState) {
 141         if (sessionState == null && bgpPeerMessagesState == null) {
 142             return null;
 143         }
 144         final StateBuilder builder = new StateBuilder();
 145         if (sessionState != null) {
 146             builder.addAugmentation(NeighborStateAugmentation.class, buildCapabilityState(sessionState));
 147         }
 148         if (bgpPeerMessagesState != null) {
 149             builder.addAugmentation(BgpNeighborStateAugmentation.class, buildMessageState(bgpPeerMessagesState));
 150         }
 151         return builder.build();
 152     }
 153
 154     /**
 155      * Builds Neighbor State from BGPPeerState counters.
 156      *
 157      * @param neighbor BGPPeerState containing Operational state counters
 158      * @return Timer State
 159      */
 160     @Nullable
 161     public static Timers buildTimer(@Nullable final BGPTimersState neighbor) {
 162         if (neighbor == null) {
 163             return null;
 164         }
 165         final NeighborTimersStateAugmentation timerState = new NeighborTimersStateAugmentationBuilder()
 166                 .setNegotiatedHoldTime(BigDecimal.valueOf(neighbor.getNegotiatedHoldTime()))
 167                 .setUptime(new Timeticks(neighbor.getUpTime())).build();
 168
 169         return new TimersBuilder().setState(new org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp
 170                 .neighbor.group.timers.StateBuilder()
 171                 .addAugmentation(NeighborTimersStateAugmentation.class, timerState).build()).build();
 172     }
 173
 174     /**
 175      * Builds Transport State from BGPTransportState counters.
 176      *
 177      * @param neighbor BGPPeerState containing Operational state counters
 178      * @return Transport State
 179      */
 180     @Nullable
 181     public static Transport buildTransport(@Nullable final BGPTransportState neighbor) {
 182         if (neighbor == null) {
 183             return null;
 184         }
 185         final NeighborTransportStateAugmentation transportState = new NeighborTransportStateAugmentationBuilder()
 186                 .setLocalPort(neighbor.getLocalPort()).setRemoteAddress(neighbor.getRemoteAddress())
 187                 .setRemotePort(neighbor.getRemotePort()).build();
 188
 189         return new TransportBuilder().setState(new org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009
 190                 .bgp.neighbor.group.transport.StateBuilder()
 191                 .addAugmentation(NeighborTransportStateAugmentation.class, transportState).build()).build();
 192     }
 193
 194     /**
 195      * Builds Error Handling State from BGPPeerState counters.
 196      *
 197      * @param errorHandlingState BGPErrorHandlingState containing ErrorHandlingState Operational state counters
 198      * @return Error Handling State
 199      */
 200     public static ErrorHandling buildErrorHandling(@Nullable final BGPErrorHandlingState errorHandlingState) {
 201         if (errorHandlingState == null) {
 202             return null;
 203         }
 204         return new ErrorHandlingBuilder().setState(new org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp
 205                 .rev151009.bgp.neighbor.group.error.handling.StateBuilder()
 206                 .addAugmentation(NeighborErrorHandlingStateAugmentation.class,
 207                         buildErrorHandlingState(errorHandlingState.getErroneousUpdateReceivedCount())).build()).build();
 208     }
 209
 210     /**
 211      * Builds Graceful Restart containing Graceful Restart State from BGPGracelfulRestartState counters.
 212      *
 213      * @param neighbor BGPPeerState containing Operational state counters
 214      * @return Graceful Restart
 215      */
 216     @Nonnull
 217     public static GracefulRestart buildGracefulRestart(@Nonnull final BGPGracelfulRestartState neighbor) {
 218         final NeighborGracefulRestartStateAugmentation gracefulRestartState =
 219                 new NeighborGracefulRestartStateAugmentationBuilder()
 220                         .setLocalRestarting(neighbor.isLocalRestarting())
 221                         .setPeerRestartTime(neighbor.getPeerRestartTime())
 222                         //.setMode(mode) TBD once implemented
 223                         .setPeerRestarting(neighbor.isPeerRestarting()).build();
 224
 225         return new GracefulRestartBuilder().setState(new org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp
 226                 .rev151009.bgp.graceful.restart.graceful.restart.StateBuilder()
 227                 .addAugmentation(NeighborGracefulRestartStateAugmentation.class, gracefulRestartState).build()).build();
 228     }
 229
 230     /**
 231      * Builds  Neighbor Afi Safi containing AfiSafi State.
 232      *
 233      * @param neighbor BGPPeerState containing Operational state counters
 234      * @return Afi Safis
 235      */
 236     public static AfiSafis buildAfisSafis(@Nonnull final BGPPeerState neighbor,
 237             @Nonnull final BGPTableTypeRegistryConsumer bgpTableTypeRegistry) {
 238         return new AfiSafisBuilder().setAfiSafi(buildAfisSafisState(neighbor.getBGPAfiSafiState(),
 239                 bgpTableTypeRegistry)).build();
 240     }
 241
 242     /**
 243      * Builds  Neighbor State containing Capabilities State, session State.
 244      *
 245      * @return Neighbor State
 246      */
 247     public static NeighborStateAugmentation buildCapabilityState(@Nonnull final BGPSessionState neighbor) {
 248
 249         final List<Class<? extends BgpCapability>> supportedCapabilities = buildSupportedCapabilities(neighbor);
 250         SessionState sessionState = null;
 251         switch (neighbor.getSessionState()) {
 252             case IDLE:
 253                 sessionState = SessionState.IDLE;
 254                 break;
 255             case UP:
 256                 sessionState = SessionState.ESTABLISHED;
 257                 break;
 258             case OPEN_CONFIRM:
 259                 sessionState = SessionState.OPENCONFIRM;
 260                 break;
 261             default:
 262         }
 263         return new NeighborStateAugmentationBuilder().setSupportedCapabilities(supportedCapabilities)
 264                 .setSessionState(sessionState).build();
 265     }
 266
 267     /**
 268      * Builds Bgp Neighbor State containing Message State.
 269      *
 270      * @return BgpNeighborState containing Message State
 271      */
 272     @Nonnull
 273     public static BgpNeighborStateAugmentation buildMessageState(@Nonnull final BGPPeerMessagesState neighbor) {
 274         return new BgpNeighborStateAugmentationBuilder()
 275                 .setMessages(new MessagesBuilder()
 276                         .setReceived(buildMessagesReceived(neighbor))
 277                         .setSent(buildMessagesSent(neighbor)).build()).build();
 278     }
 279
 280     private static Received buildMessagesReceived(@Nonnull final BGPPeerMessagesState neighbor) {
 281         return new ReceivedBuilder()
 282                 .setUPDATE(toBigInteger(neighbor.getUpdateMessagesReceivedCount()))
 283                 .setNOTIFICATION(toBigInteger(neighbor.getNotificationMessagesReceivedCount()))
 284                 .build();
 285     }
 286
 287     public static BigInteger toBigInteger(final long updateReceivedCounter) {
 288         return UnsignedLong.valueOf(updateReceivedCounter).bigIntegerValue();
 289     }
 290
 291     private static Sent buildMessagesSent(@Nonnull final BGPPeerMessagesState neighbor) {
 292         return new SentBuilder()
 293                 .setUPDATE(toBigInteger(neighbor.getUpdateMessagesSentCount()))
 294                 .setNOTIFICATION(toBigInteger(neighbor.getNotificationMessagesSentCount()))
 295                 .build();
 296     }
 297
 298     /**
 299      * Builds Neighbor Error Handling State.
 300      *
 301      * @param erroneousUpdateCount erroneous Update Count
 302      * @return Error Handling State
 303      */
 304     @Nonnull
 305     public static NeighborErrorHandlingStateAugmentation buildErrorHandlingState(final long erroneousUpdateCount) {
 306         return new NeighborErrorHandlingStateAugmentationBuilder()
 307                 .setErroneousUpdateMessages(erroneousUpdateCount).build();
 308     }
 309
 310     /**
 311      * Build List of afi safi containing State per Afi Safi.
 312      *
 313      * @return AfiSafi List
 314      */
 315     @Nonnull
 316     public static List<AfiSafi> buildAfisSafisState(@Nonnull final BGPAfiSafiState neighbor,
 317             @Nonnull final BGPTableTypeRegistryConsumer bgpTableTypeRegistry) {
 318         final Set<TablesKey> afiSafiJoin = new HashSet<>(neighbor.getAfiSafisAdvertized());
 319         afiSafiJoin.addAll(neighbor.getAfiSafisReceived());
 320         return afiSafiJoin.stream().map(tableKey -> buildAfiSafi(neighbor, tableKey, bgpTableTypeRegistry))
 321                 .filter(Objects::nonNull)
 322                 .collect(Collectors.toList());
 323     }
 324
 325     private static AfiSafi buildAfiSafi(@Nonnull final BGPAfiSafiState neighbor,
 326             @Nonnull final TablesKey tablesKey, @Nonnull final BGPTableTypeRegistryConsumer bgpTableTypeRegistry) {
 327         final Optional<Class<? extends AfiSafiType>> afiSafi = bgpTableTypeRegistry.getAfiSafiType(tablesKey);
 328         return afiSafi.map(aClass -> new AfiSafiBuilder().setAfiSafiName(aClass)
 329                 .setState(buildAfiSafiState(neighbor, tablesKey, neighbor.isAfiSafiSupported(tablesKey)))
 330                 .setGracefulRestart(buildAfiSafiGracefulRestartState(neighbor, tablesKey)).build()).orElse(null);
 331
 332     }
 333
 334     private static org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.multiprotocol.rev151009.bgp.common.afi
 335             .safi.list.afi.safi.State buildAfiSafiState(@Nonnull final BGPAfiSafiState neighbor,
 336             @Nonnull final TablesKey tablesKey, final boolean afiSafiSupported) {
 337         final NeighborAfiSafiStateAugmentationBuilder builder = new NeighborAfiSafiStateAugmentationBuilder();
 338         builder.setActive(afiSafiSupported);
 339         if (afiSafiSupported) {
 340             builder.setPrefixes(new PrefixesBuilder()
 341                     .setInstalled(neighbor.getPrefixesInstalledCount(tablesKey))
 342                     .setReceived(neighbor.getPrefixesReceivedCount(tablesKey))
 343                     .setSent(neighbor.getPrefixesSentCount(tablesKey)).build());
 344         }
 345         return new org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.multiprotocol.rev151009.bgp.common.afi
 346                 .safi.list.afi.safi.StateBuilder().addAugmentation(NeighborAfiSafiStateAugmentation.class,
 347                 builder.build()).build();
 348     }
 349
 350     private static org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.multiprotocol.rev151009.bgp.common.afi
 351             .safi.list.afi.safi.GracefulRestart buildAfiSafiGracefulRestartState(
 352             @Nonnull final BGPGracelfulRestartState neighbor, @Nonnull final TablesKey tablesKey) {
 353         final NeighborAfiSafiGracefulRestartStateAugmentation builder =
 354                 new NeighborAfiSafiGracefulRestartStateAugmentationBuilder()
 355                         .setAdvertised(neighbor.isGracefulRestartAdvertized(tablesKey))
 356                         .setReceived(neighbor.isGracefulRestartReceived(tablesKey)).build();
 357         return new org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.multiprotocol.rev151009.bgp.common.afi
 358                 .safi.list.afi.safi.GracefulRestartBuilder().setState(new org.opendaylight.yang.gen.v1.http.openconfig
 359                 .net.yang.bgp.multiprotocol.rev151009.bgp.common.afi.safi.list.afi.safi.graceful.restart.StateBuilder()
 360                 .addAugmentation(NeighborAfiSafiGracefulRestartStateAugmentation.class, builder).build()).build();
 361     }
 362
 363     /**
 364      * Builds List of BgpCapability supported capabilities.
 365      *
 366      * @return List containing supported capabilities
 367      */
 368     @Nonnull
 369     public static List<Class<? extends BgpCapability>> buildSupportedCapabilities(
 370             @Nonnull final BGPSessionState neighbor) {
 371         final List<Class<? extends BgpCapability>> supportedCapabilities = new ArrayList<>();
 372         if (neighbor.isAddPathCapabilitySupported()) {
 373             supportedCapabilities.add(ADDPATHS.class);
 374         }
 375         if (neighbor.isAsn32CapabilitySupported()) {
 376             supportedCapabilities.add(ASN32.class);
 377         }
 378         if (neighbor.isGracefulRestartCapabilitySupported()) {
 379             supportedCapabilities.add(GRACEFULRESTART.class);
 380         }
 381         if (neighbor.isMultiProtocolCapabilitySupported()) {
 382             supportedCapabilities.add(MPBGP.class);
 383         }
 384         if (neighbor.isRouterRefreshCapabilitySupported()) {
 385             supportedCapabilities.add(ROUTEREFRESH.class);
 386         }
 387         return supportedCapabilities;
 388     }
 389 }