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.UnsignedInteger;
  12 import com.google.common.primitives.UnsignedLong;
  13 import java.math.BigDecimal;
  14 import java.math.BigInteger;
  15 import java.util.ArrayList;
  16 import java.util.HashSet;
  17 import java.util.List;
  18 import java.util.Objects;
  19 import java.util.Optional;
  20 import java.util.Set;
  21 import java.util.stream.Collectors;
  22 import org.eclipse.jdt.annotation.NonNull;
  23 import org.eclipse.jdt.annotation.Nullable;
  24 import org.opendaylight.protocol.bgp.openconfig.spi.BGPTableTypeRegistryConsumer;
  25 import org.opendaylight.protocol.bgp.rib.spi.state.BGPAfiSafiState;
  26 import org.opendaylight.protocol.bgp.rib.spi.state.BGPErrorHandlingState;
  27 import org.opendaylight.protocol.bgp.rib.spi.state.BGPGracelfulRestartState;
  28 import org.opendaylight.protocol.bgp.rib.spi.state.BGPLlGracelfulRestartState;
  29 import org.opendaylight.protocol.bgp.rib.spi.state.BGPPeerMessagesState;
  30 import org.opendaylight.protocol.bgp.rib.spi.state.BGPPeerState;
  31 import org.opendaylight.protocol.bgp.rib.spi.state.BGPSessionState;
  32 import org.opendaylight.protocol.bgp.rib.spi.state.BGPTimersState;
  33 import org.opendaylight.protocol.bgp.rib.spi.state.BGPTransportState;
  34 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.multiprotocol.rev151009.bgp.common.afi.safi.list.AfiSafi;
  35 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.multiprotocol.rev151009.bgp.common.afi.safi.list.AfiSafiBuilder;
  36 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.operational.rev151009.BgpNeighborState.SessionState;
  37 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.operational.rev151009.bgp.neighbor.prefix.counters_state.PrefixesBuilder;
  38 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.graceful.restart.GracefulRestart;
  39 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.graceful.restart.GracefulRestartBuilder;
  40 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.neighbor.group.AfiSafis;
  41 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.neighbor.group.AfiSafisBuilder;
  42 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.neighbor.group.ErrorHandling;
  43 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.neighbor.group.ErrorHandlingBuilder;
  44 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.neighbor.group.State;
  45 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.neighbor.group.StateBuilder;
  46 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.neighbor.group.Timers;
  47 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.neighbor.group.TimersBuilder;
  48 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.neighbor.group.Transport;
  49 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.neighbor.group.TransportBuilder;
  50 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.neighbors.Neighbor;
  51 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.neighbors.NeighborBuilder;
  52 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.top.bgp.Neighbors;
  53 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.top.bgp.NeighborsBuilder;
  54 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.types.rev151009.ADDPATHS;
  55 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.types.rev151009.ASN32;
  56 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.types.rev151009.AfiSafiType;
  57 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.types.rev151009.BgpCapability;
  58 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.types.rev151009.GRACEFULRESTART;
  59 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.types.rev151009.MPBGP;
  60 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.types.rev151009.ROUTEREFRESH;
  61 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
  62 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddressNoZone;
  63 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4AddressNoZone;
  64 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Timeticks;
  65 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.BgpNeighborStateAugmentation;
  66 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.BgpNeighborStateAugmentationBuilder;
  67 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.NeighborAfiSafiGracefulRestartStateAugmentation;
  68 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.NeighborAfiSafiGracefulRestartStateAugmentationBuilder;
  69 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.NeighborAfiSafiStateAugmentation;
  70 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.NeighborAfiSafiStateAugmentationBuilder;
  71 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.NeighborErrorHandlingStateAugmentation;
  72 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.NeighborErrorHandlingStateAugmentationBuilder;
  73 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.NeighborGracefulRestartStateAugmentation;
  74 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.NeighborGracefulRestartStateAugmentationBuilder;
  75 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.NeighborStateAugmentation;
  76 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.NeighborStateAugmentationBuilder;
  77 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.NeighborTimersStateAugmentation;
  78 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.NeighborTimersStateAugmentationBuilder;
  79 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.NeighborTransportStateAugmentation;
  80 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.openconfig.extensions.rev180329.NeighborTransportStateAugmentationBuilder;
  81 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;
  82 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;
  83 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;
  84 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;
  85 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;
  86 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.rib.TablesKey;
  87 import org.opendaylight.yangtools.yang.common.Uint32;
  88
  89 /**
  90  * Util for create OpenConfig Neighbor with corresponding openConfig state.
  91  */
  92 public final class NeighborUtil {
  93     private static final long TIMETICK_ROLLOVER_VALUE = UnsignedInteger.MAX_VALUE.longValue() + 1;
  94
  95     private NeighborUtil() {
  96         // Hidden on purpose
  97     }
  98
  99     /**
 100      * Build a Openconfig Neighbors container with all Neighbors Stats from a list of
 101      * BGPPeerGroupState.
 102      *
 103      * @param peerStats            List of BGPPeerState containing Neighbor state counters
 104      * @param bgpTableTypeRegistry BGP TableType Registry
 105      * @return Openconfig Neighbors Stats
 106      */
 107     public static @Nullable Neighbors buildNeighbors(final @NonNull List<BGPPeerState> peerStats,
 108             final @NonNull BGPTableTypeRegistryConsumer bgpTableTypeRegistry) {
 109         if (peerStats.isEmpty()) {
 110             return null;
 111         }
 112         return new NeighborsBuilder().setNeighbor(peerStats.stream()
 113                 .filter(Objects::nonNull)
 114                 .map(neighbor -> buildNeighbor(neighbor, bgpTableTypeRegistry))
 115                 .collect(Collectors.toList())).build();
 116     }
 117
 118     /**
 119      * Build a list of neighbors containing Operational State from a list of BGPPeerState.
 120      *
 121      * @param neighbor containing Neighbor state counters
 122      * @return neighbor containing Neighbor State
 123      */
 124     public static @NonNull Neighbor buildNeighbor(final @NonNull BGPPeerState neighbor,
 125             final @NonNull BGPTableTypeRegistryConsumer bgpTableTypeRegistry) {
 126         return new NeighborBuilder()
 127                 .setNeighborAddress(convertIpAddress(neighbor.getNeighborAddress()))
 128                 .setState(buildNeighborState(neighbor.getBGPSessionState(), neighbor.getBGPPeerMessagesState()))
 129                 .setTimers(buildTimer(neighbor.getBGPTimersState()))
 130                 .setTransport(buildTransport(neighbor.getBGPTransportState()))
 131                 .setErrorHandling(buildErrorHandling(neighbor.getBGPErrorHandlingState()))
 132                 .setGracefulRestart(buildGracefulRestart(neighbor.getBGPGracelfulRestart()))
 133                 .setAfiSafis(buildAfisSafis(neighbor, bgpTableTypeRegistry))
 134                 .build();
 135     }
 136
 137     private static IpAddress convertIpAddress(final IpAddressNoZone addr) {
 138         if (addr == null) {
 139             return null;
 140         }
 141         final Ipv4AddressNoZone ipv4 = addr.getIpv4AddressNoZone();
 142         if (ipv4 != null) {
 143             return new IpAddress(ipv4);
 144         }
 145         return new IpAddress(addr.getIpv6AddressNoZone());
 146     }
 147
 148     /**
 149      * Builds Neighbor State from BGPPeerState counters.
 150      *
 151      * @param sessionState         BGPPeerState containing Operational state counters
 152      * @param bgpPeerMessagesState message state
 153      * @return Neighbor State
 154      */
 155     public static @Nullable State buildNeighborState(final @Nullable BGPSessionState sessionState,
 156             final BGPPeerMessagesState bgpPeerMessagesState) {
 157         if (sessionState == null && bgpPeerMessagesState == null) {
 158             return null;
 159         }
 160         final StateBuilder builder = new StateBuilder();
 161         if (sessionState != null) {
 162             builder.addAugmentation(NeighborStateAugmentation.class, buildCapabilityState(sessionState));
 163         }
 164         if (bgpPeerMessagesState != null) {
 165             builder.addAugmentation(BgpNeighborStateAugmentation.class, buildMessageState(bgpPeerMessagesState));
 166         }
 167         return builder.build();
 168     }
 169
 170     /**
 171      * Builds Neighbor State from BGPPeerState counters.
 172      *
 173      * @param neighbor BGPPeerState containing Operational state counters
 174      * @return Timer State
 175      */
 176     public static @Nullable Timers buildTimer(final @Nullable BGPTimersState neighbor) {
 177         if (neighbor == null) {
 178             return null;
 179         }
 180         // convert neighbor uptime which is in milliseconds to time-ticks which is
 181         // hundredth of a second, and handle roll-over scenario
 182         final long uptimeTicks = neighbor.getUpTime() / 10 % TIMETICK_ROLLOVER_VALUE;
 183         final NeighborTimersStateAugmentation timerState = new NeighborTimersStateAugmentationBuilder()
 184                 .setNegotiatedHoldTime(BigDecimal.valueOf(neighbor.getNegotiatedHoldTime()))
 185                 .setUptime(new Timeticks(Uint32.valueOf(uptimeTicks))).build();
 186
 187         return new TimersBuilder().setState(new org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp
 188                 .neighbor.group.timers.StateBuilder()
 189                 .addAugmentation(NeighborTimersStateAugmentation.class, timerState).build()).build();
 190     }
 191
 192     /**
 193      * Builds Transport State from BGPTransportState counters.
 194      *
 195      * @param neighbor BGPPeerState containing Operational state counters
 196      * @return Transport State
 197      */
 198     public static @Nullable Transport buildTransport(final @Nullable BGPTransportState neighbor) {
 199         if (neighbor == null) {
 200             return null;
 201         }
 202         final NeighborTransportStateAugmentation transportState = new NeighborTransportStateAugmentationBuilder()
 203                 .setLocalPort(neighbor.getLocalPort()).setRemoteAddress(convertIpAddress(neighbor.getRemoteAddress()))
 204                 .setRemotePort(neighbor.getRemotePort()).build();
 205
 206         return new TransportBuilder().setState(new org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009
 207                 .bgp.neighbor.group.transport.StateBuilder()
 208                 .addAugmentation(NeighborTransportStateAugmentation.class, transportState).build()).build();
 209     }
 210
 211     /**
 212      * Builds Error Handling State from BGPPeerState counters.
 213      *
 214      * @param errorHandlingState BGPErrorHandlingState containing ErrorHandlingState Operational state counters
 215      * @return Error Handling State
 216      */
 217     public static ErrorHandling buildErrorHandling(final @Nullable BGPErrorHandlingState errorHandlingState) {
 218         if (errorHandlingState == null) {
 219             return null;
 220         }
 221         return new ErrorHandlingBuilder().setState(new org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp
 222                 .rev151009.bgp.neighbor.group.error.handling.StateBuilder()
 223                 .addAugmentation(NeighborErrorHandlingStateAugmentation.class,
 224                         buildErrorHandlingState(errorHandlingState.getErroneousUpdateReceivedCount())).build()).build();
 225     }
 226
 227     /**
 228      * Builds Graceful Restart containing Graceful Restart State from BGPGracelfulRestartState counters.
 229      *
 230      * @param neighbor BGPPeerState containing Operational state counters
 231      * @return Graceful Restart
 232      */
 233     public static @NonNull GracefulRestart buildGracefulRestart(final @NonNull BGPGracelfulRestartState neighbor) {
 234         final NeighborGracefulRestartStateAugmentation gracefulRestartState =
 235                 new NeighborGracefulRestartStateAugmentationBuilder()
 236                         .setLocalRestarting(neighbor.isLocalRestarting())
 237                         .setPeerRestartTime(neighbor.getPeerRestartTime())
 238                         .setMode(neighbor.getMode())
 239                         .setPeerRestarting(neighbor.isPeerRestarting()).build();
 240
 241         return new GracefulRestartBuilder().setState(new org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp
 242                 .rev151009.bgp.graceful.restart.graceful.restart.StateBuilder()
 243                 .addAugmentation(NeighborGracefulRestartStateAugmentation.class, gracefulRestartState).build()).build();
 244     }
 245
 246     /**
 247      * Builds  Neighbor Afi Safi containing AfiSafi State.
 248      *
 249      * @param neighbor BGPPeerState containing Operational state counters
 250      * @return Afi Safis
 251      */
 252     public static AfiSafis buildAfisSafis(final @NonNull BGPPeerState neighbor,
 253             final @NonNull BGPTableTypeRegistryConsumer bgpTableTypeRegistry) {
 254         return new AfiSafisBuilder().setAfiSafi(buildAfisSafisState(neighbor.getBGPAfiSafiState(),
 255                 bgpTableTypeRegistry)).build();
 256     }
 257
 258     /**
 259      * Builds  Neighbor State containing Capabilities State, session State.
 260      *
 261      * @return Neighbor State
 262      */
 263     public static NeighborStateAugmentation buildCapabilityState(final @NonNull BGPSessionState neighbor) {
 264
 265         final List<Class<? extends BgpCapability>> supportedCapabilities = buildSupportedCapabilities(neighbor);
 266         SessionState sessionState = null;
 267         switch (neighbor.getSessionState()) {
 268             case IDLE:
 269                 sessionState = SessionState.IDLE;
 270                 break;
 271             case UP:
 272                 sessionState = SessionState.ESTABLISHED;
 273                 break;
 274             case OPEN_CONFIRM:
 275                 sessionState = SessionState.OPENCONFIRM;
 276                 break;
 277             default:
 278         }
 279         return new NeighborStateAugmentationBuilder().setSupportedCapabilities(supportedCapabilities)
 280                 .setSessionState(sessionState).build();
 281     }
 282
 283     /**
 284      * Builds Bgp Neighbor State containing Message State.
 285      *
 286      * @return BgpNeighborState containing Message State
 287      */
 288     public static @NonNull BgpNeighborStateAugmentation buildMessageState(
 289             final @NonNull BGPPeerMessagesState neighbor) {
 290         return new BgpNeighborStateAugmentationBuilder()
 291                 .setMessages(new MessagesBuilder()
 292                         .setReceived(buildMessagesReceived(neighbor))
 293                         .setSent(buildMessagesSent(neighbor)).build()).build();
 294     }
 295
 296     private static Received buildMessagesReceived(final @NonNull BGPPeerMessagesState neighbor) {
 297         return new ReceivedBuilder()
 298                 .setUPDATE(toBigInteger(neighbor.getUpdateMessagesReceivedCount()))
 299                 .setNOTIFICATION(toBigInteger(neighbor.getNotificationMessagesReceivedCount()))
 300                 .build();
 301     }
 302
 303     public static BigInteger toBigInteger(final long updateReceivedCounter) {
 304         return UnsignedLong.valueOf(updateReceivedCounter).bigIntegerValue();
 305     }
 306
 307     private static Sent buildMessagesSent(final @NonNull BGPPeerMessagesState neighbor) {
 308         return new SentBuilder()
 309                 .setUPDATE(toBigInteger(neighbor.getUpdateMessagesSentCount()))
 310                 .setNOTIFICATION(toBigInteger(neighbor.getNotificationMessagesSentCount()))
 311                 .build();
 312     }
 313
 314     /**
 315      * Builds Neighbor Error Handling State.
 316      *
 317      * @param erroneousUpdateCount erroneous Update Count
 318      * @return Error Handling State
 319      */
 320     public static @NonNull NeighborErrorHandlingStateAugmentation buildErrorHandlingState(
 321             final long erroneousUpdateCount) {
 322         return new NeighborErrorHandlingStateAugmentationBuilder()
 323                 .setErroneousUpdateMessages(erroneousUpdateCount).build();
 324     }
 325
 326     /**
 327      * Build List of afi safi containing State per Afi Safi.
 328      *
 329      * @return AfiSafi List
 330      */
 331     public static @NonNull List<AfiSafi> buildAfisSafisState(final @NonNull BGPAfiSafiState neighbor,
 332             final @NonNull BGPTableTypeRegistryConsumer bgpTableTypeRegistry) {
 333         final Set<TablesKey> afiSafiJoin = new HashSet<>(neighbor.getAfiSafisAdvertized());
 334         afiSafiJoin.addAll(neighbor.getAfiSafisReceived());
 335         return afiSafiJoin.stream().map(tableKey -> buildAfiSafi(neighbor, tableKey, bgpTableTypeRegistry))
 336                 .filter(Objects::nonNull)
 337                 .collect(Collectors.toList());
 338     }
 339
 340     private static AfiSafi buildAfiSafi(final @NonNull BGPAfiSafiState neighbor,
 341             final @NonNull TablesKey tablesKey, final @NonNull BGPTableTypeRegistryConsumer bgpTableTypeRegistry) {
 342         final Optional<Class<? extends AfiSafiType>> afiSafi = bgpTableTypeRegistry.getAfiSafiType(tablesKey);
 343         return afiSafi.map(aClass -> new AfiSafiBuilder().setAfiSafiName(aClass)
 344                 .setState(buildAfiSafiState(neighbor, tablesKey, neighbor.isAfiSafiSupported(tablesKey)))
 345                 .setGracefulRestart(buildAfiSafiGracefulRestartState(neighbor, tablesKey)).build()).orElse(null);
 346
 347     }
 348
 349     private static org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.multiprotocol.rev151009.bgp.common.afi
 350             .safi.list.afi.safi.State buildAfiSafiState(final @NonNull BGPAfiSafiState neighbor,
 351             final @NonNull TablesKey tablesKey, final boolean afiSafiSupported) {
 352         final NeighborAfiSafiStateAugmentationBuilder builder = new NeighborAfiSafiStateAugmentationBuilder();
 353         builder.setActive(afiSafiSupported);
 354         if (afiSafiSupported) {
 355             builder.setPrefixes(new PrefixesBuilder()
 356                     .setInstalled(neighbor.getPrefixesInstalledCount(tablesKey))
 357                     .setReceived(neighbor.getPrefixesReceivedCount(tablesKey))
 358                     .setSent(neighbor.getPrefixesSentCount(tablesKey)).build());
 359         }
 360         return new org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.multiprotocol.rev151009.bgp.common.afi
 361                 .safi.list.afi.safi.StateBuilder().addAugmentation(NeighborAfiSafiStateAugmentation.class,
 362                 builder.build()).build();
 363     }
 364
 365     private static org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.multiprotocol.rev151009.bgp.common.afi
 366             .safi.list.afi.safi.GracefulRestart buildAfiSafiGracefulRestartState(
 367             final @NonNull BGPLlGracelfulRestartState neighbor, final @NonNull TablesKey tablesKey) {
 368         final NeighborAfiSafiGracefulRestartStateAugmentation builder =
 369                 new NeighborAfiSafiGracefulRestartStateAugmentationBuilder()
 370                         .setAdvertised(neighbor.isGracefulRestartAdvertized(tablesKey))
 371                         .setReceived(neighbor.isGracefulRestartReceived(tablesKey))
 372                         .setLlAdvertised(neighbor.isLlGracefulRestartAdvertised(tablesKey))
 373                         .setLlReceived(neighbor.isLlGracefulRestartReceived(tablesKey))
 374                         .setLlStaleTimer(Uint32.valueOf(neighbor.getLlGracefulRestartTimer(tablesKey))).build();
 375         return new org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.multiprotocol.rev151009.bgp.common.afi
 376                 .safi.list.afi.safi.GracefulRestartBuilder().setState(new org.opendaylight.yang.gen.v1.http.openconfig
 377                 .net.yang.bgp.multiprotocol.rev151009.bgp.common.afi.safi.list.afi.safi.graceful.restart.StateBuilder()
 378                 .addAugmentation(NeighborAfiSafiGracefulRestartStateAugmentation.class, builder).build()).build();
 379     }
 380
 381     /**
 382      * Builds List of BgpCapability supported capabilities.
 383      *
 384      * @return List containing supported capabilities
 385      */
 386     public static @NonNull List<Class<? extends BgpCapability>> buildSupportedCapabilities(
 387             final @NonNull BGPSessionState neighbor) {
 388         final List<Class<? extends BgpCapability>> supportedCapabilities = new ArrayList<>();
 389         if (neighbor.isAddPathCapabilitySupported()) {
 390             supportedCapabilities.add(ADDPATHS.class);
 391         }
 392         if (neighbor.isAsn32CapabilitySupported()) {
 393             supportedCapabilities.add(ASN32.class);
 394         }
 395         if (neighbor.isGracefulRestartCapabilitySupported()) {
 396             supportedCapabilities.add(GRACEFULRESTART.class);
 397         }
 398         if (neighbor.isMultiProtocolCapabilitySupported()) {
 399             supportedCapabilities.add(MPBGP.class);
 400         }
 401         if (neighbor.isRouterRefreshCapabilitySupported()) {
 402             supportedCapabilities.add(ROUTEREFRESH.class);
 403         }
 404         return supportedCapabilities;
 405     }
 406 }