bgp/linkstate/src/main/java/org/opendaylight/protocol/bgp/linkstate/LinkstateAdjRIBsIn.java

   1 /*
   2  * Copyright (c) 2013 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 package org.opendaylight.protocol.bgp.linkstate;
   9
  10 import com.google.common.base.Objects.ToStringHelper;
  11 import com.google.common.base.Preconditions;
  12 import com.google.common.collect.Lists;
  13 import io.netty.buffer.ByteBuf;
  14 import io.netty.buffer.Unpooled;
  15 import java.util.List;
  16 import org.opendaylight.protocol.bgp.linkstate.nlri.LinkstateNlriParser;
  17 import org.opendaylight.protocol.bgp.parser.BGPParsingException;
  18 import org.opendaylight.protocol.bgp.rib.spi.AbstractAdjRIBs;
  19 import org.opendaylight.protocol.bgp.rib.spi.AdjRIBsTransaction;
  20 import org.opendaylight.protocol.bgp.rib.spi.Peer;
  21 import org.opendaylight.protocol.util.ByteArray;
  22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.IpPrefix;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.LinkstateDestination;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.NlriType;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.PathAttributes1;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.destination.CLinkstateDestination;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.destination.CLinkstateDestinationBuilder;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.LinkstateRoutes;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.linkstate.routes.LinkstateRoute;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.linkstate.routes.LinkstateRouteBuilder;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.linkstate.routes.LinkstateRouteKey;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.linkstate.routes.linkstate.route.Attributes1;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.linkstate.routes.linkstate.route.Attributes1Builder;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.linkstate.routes.linkstate.route.ObjectType;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.linkstate.routes.linkstate.route.attributes.AttributeType;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.linkstate.routes.linkstate.route.attributes.attribute.type.link._case.LinkAttributesBuilder;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.linkstate.routes.linkstate.route.attributes.attribute.type.node._case.NodeAttributesBuilder;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.linkstate.routes.linkstate.route.attributes.attribute.type.prefix._case.PrefixAttributesBuilder;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.linkstate.routes.linkstate.route.object.type.LinkCase;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.linkstate.routes.linkstate.route.object.type.LinkCaseBuilder;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.linkstate.routes.linkstate.route.object.type.NodeCase;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.linkstate.routes.linkstate.route.object.type.NodeCaseBuilder;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.linkstate.routes.linkstate.route.object.type.PrefixCase;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.linkstate.routes.linkstate.route.object.type.PrefixCaseBuilder;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.linkstate.routes.linkstate.route.object.type.link._case.LinkDescriptorsBuilder;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.linkstate.routes.linkstate.route.object.type.link._case.LocalNodeDescriptorsBuilder;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.linkstate.routes.linkstate.route.object.type.link._case.RemoteNodeDescriptorsBuilder;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.linkstate.routes.linkstate.route.object.type.node._case.NodeDescriptorsBuilder;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.linkstate.routes.linkstate.route.object.type.prefix._case.AdvertisingNodeDescriptorsBuilder;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.path.attributes.LinkstatePathAttribute;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.path.attributes.linkstate.path.attribute.LinkStateAttribute;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.path.attributes.linkstate.path.attribute.link.state.attribute.LinkAttributesCase;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.path.attributes.linkstate.path.attribute.link.state.attribute.NodeAttributesCase;
  54 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.path.attributes.linkstate.path.attribute.link.state.attribute.PrefixAttributesCase;
  55 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.path.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationLinkstateCase;
  56 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.path.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationLinkstateCaseBuilder;
  57 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.path.attributes.mp.reach.nlri.advertized.routes.destination.type.destination.linkstate._case.DestinationLinkstateBuilder;
  58 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.path.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.destination.linkstate._case.DestinationLinkstate;
  59 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.PathAttributes;
  60 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.MpReachNlri;
  61 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.MpReachNlriBuilder;
  62 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.MpUnreachNlri;
  63 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.MpUnreachNlriBuilder;
  64 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.mp.reach.nlri.AdvertizedRoutes;
  65 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.mp.reach.nlri.AdvertizedRoutesBuilder;
  66 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.mp.unreach.nlri.WithdrawnRoutes;
  67 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.mp.unreach.nlri.WithdrawnRoutesBuilder;
  68 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.Tables;
  69 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.TablesKey;
  70 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.route.Attributes;
  71 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.route.AttributesBuilder;
  72 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  73 import org.opendaylight.yangtools.yang.binding.KeyedInstanceIdentifier;
  74 import org.slf4j.Logger;
  75 import org.slf4j.LoggerFactory;
  76
  77 final class LinkstateAdjRIBsIn extends AbstractAdjRIBs<CLinkstateDestination, LinkstateRoute, LinkstateRouteKey> {
  78
  79     private abstract static class LinkstateRIBEntryData<A extends LinkStateAttribute> extends RIBEntryData<CLinkstateDestination, LinkstateRoute, LinkstateRouteKey> {
  80         private final A lsattr;
  81
  82         protected LinkstateRIBEntryData(final Peer peer, final PathAttributes attributes, final A lsattr) {
  83             super(peer, attributes);
  84             this.lsattr = lsattr;
  85         }
  86
  87         protected abstract AttributeType createAttributes(A lsattr);
  88
  89         protected abstract ObjectType createObject(CLinkstateDestination key);
  90
  91         @Override
  92         protected final LinkstateRoute getDataObject(final CLinkstateDestination key, final LinkstateRouteKey id) {
  93             final LinkstateRouteBuilder builder = new LinkstateRouteBuilder();
  94
  95             builder.setKey(id);
  96             builder.setIdentifier(key.getIdentifier());
  97             builder.setProtocolId(key.getProtocolId());
  98             builder.setDistinguisher(key.getDistinguisher());
  99             builder.setAttributes(new AttributesBuilder(getPathAttributes()).addAugmentation(Attributes1.class,
 100                 new Attributes1Builder().setAttributeType(Preconditions.checkNotNull(createAttributes(this.lsattr))).build()).build());
 101             builder.setObjectType(Preconditions.checkNotNull(createObject(key)));
 102
 103             return builder.build();
 104         }
 105
 106         @Override
 107         protected ToStringHelper addToStringAttributes(final ToStringHelper toStringHelper) {
 108             return toStringHelper.add("lsattr", this.lsattr);
 109         }
 110     }
 111
 112     private static final Logger LOG = LoggerFactory.getLogger(LinkstateAdjRIBsIn.class);
 113     private final InstanceIdentifier<LinkstateRoutes> routesBasePath;
 114
 115     LinkstateAdjRIBsIn(final KeyedInstanceIdentifier<Tables, TablesKey> basePath) {
 116         super(basePath);
 117         this.routesBasePath = basePath.builder().child((Class)LinkstateRoutes.class).build();
 118     }
 119
 120     @Override
 121     @Deprecated
 122     public KeyedInstanceIdentifier<LinkstateRoute, LinkstateRouteKey> identifierForKey(final InstanceIdentifier<Tables> basePath, final CLinkstateDestination key) {
 123         final ByteBuf keyBuf = Unpooled.buffer();
 124         LinkstateNlriParser.serializeNlri(key, keyBuf);
 125         return basePath.child((Class)LinkstateRoutes.class).child(LinkstateRoute.class,
 126             new LinkstateRouteKey(ByteArray.readAllBytes(keyBuf)));
 127     }
 128
 129     @Override
 130     public KeyedInstanceIdentifier<LinkstateRoute, LinkstateRouteKey> identifierForKey(final CLinkstateDestination key) {
 131         final ByteBuf keyBuf = Unpooled.buffer();
 132         LinkstateNlriParser.serializeNlri(key, keyBuf);
 133         return this.routesBasePath.child(LinkstateRoute.class,
 134             new LinkstateRouteKey(ByteArray.readAllBytes(keyBuf)));
 135     }
 136
 137     @Override
 138     public void addRoutes(final AdjRIBsTransaction trans, final Peer peer, final MpReachNlri nlri,
 139         final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.update.PathAttributes attributes) {
 140         LOG.debug("Passed nlri {}", nlri);
 141         final LinkstateDestination keys = ((DestinationLinkstateCase) nlri.getAdvertizedRoutes().getDestinationType()).getDestinationLinkstate();
 142         if (keys == null) {
 143             LOG.debug("No destinations present in advertized routes");
 144             return;
 145         }
 146
 147         LOG.debug("Iterating over route destinations {}", keys);
 148
 149         for (final CLinkstateDestination key : keys.getCLinkstateDestination()) {
 150             LOG.debug("Processing route key {}", key);
 151
 152             LinkStateAttribute lsattr = null;
 153             final PathAttributes1 pa = attributes.getAugmentation(PathAttributes1.class);
 154             if (pa != null) {
 155                 final LinkstatePathAttribute lpa = pa.getLinkstatePathAttribute();
 156                 if (lpa != null) {
 157                     lsattr = lpa.getLinkStateAttribute();
 158                 }
 159             }
 160
 161             RIBEntryData<CLinkstateDestination, LinkstateRoute, LinkstateRouteKey> data = null;
 162             switch (key.getNlriType()) {
 163             case Ipv4Prefix:
 164             case Ipv6Prefix:
 165                 data = new LinkstateRIBEntryData<PrefixAttributesCase>(peer, attributes, (PrefixAttributesCase) lsattr) {
 166                     @Override
 167                     protected AttributeType createAttributes(final PrefixAttributesCase lsattr) {
 168                         final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.linkstate.routes.linkstate.route.attributes.attribute.type.PrefixCaseBuilder b = new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.linkstate.routes.linkstate.route.attributes.attribute.type.PrefixCaseBuilder();
 169                         if (lsattr != null && lsattr.getPrefixAttributes() != null) {
 170                             b.setPrefixAttributes(new PrefixAttributesBuilder(lsattr.getPrefixAttributes()).build());
 171                         }
 172                         return b.build();
 173                     }
 174
 175                     @Override
 176                     protected PrefixCase createObject(final CLinkstateDestination key) {
 177                         final PrefixCaseBuilder b = new PrefixCaseBuilder(key.getPrefixDescriptors());
 178                         b.setAdvertisingNodeDescriptors(new AdvertisingNodeDescriptorsBuilder(key.getLocalNodeDescriptors()).build());
 179                         return b.build();
 180                     }
 181                 };
 182                 break;
 183             case Link:
 184                 data = new LinkstateRIBEntryData<LinkAttributesCase>(peer, attributes, (LinkAttributesCase) lsattr) {
 185                     @Override
 186                     protected AttributeType createAttributes(final LinkAttributesCase lsattr) {
 187                         final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.linkstate.routes.linkstate.route.attributes.attribute.type.LinkCaseBuilder b = new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.linkstate.routes.linkstate.route.attributes.attribute.type.LinkCaseBuilder();
 188                         if (lsattr != null && lsattr.getLinkAttributes() != null) {
 189                             b.setLinkAttributes(new LinkAttributesBuilder(lsattr.getLinkAttributes()).build());
 190                         }
 191                         return b.build();
 192                     }
 193
 194                     @Override
 195                     protected LinkCase createObject(final CLinkstateDestination key) {
 196                         final LinkCaseBuilder b = new LinkCaseBuilder();
 197                         b.setLinkDescriptors(new LinkDescriptorsBuilder(key.getLinkDescriptors()).build());
 198                         b.setLocalNodeDescriptors(new LocalNodeDescriptorsBuilder(key.getLocalNodeDescriptors()).build());
 199                         b.setRemoteNodeDescriptors(new RemoteNodeDescriptorsBuilder(key.getRemoteNodeDescriptors()).build());
 200                         return b.build();
 201                     }
 202                 };
 203                 break;
 204             case Node:
 205                 data = new LinkstateRIBEntryData<NodeAttributesCase>(peer, attributes, (NodeAttributesCase) lsattr) {
 206                     @Override
 207                     protected AttributeType createAttributes(final NodeAttributesCase lsattr) {
 208                         final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.linkstate.routes.linkstate.route.attributes.attribute.type.NodeCaseBuilder b = new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.linkstate.routes.linkstate.route.attributes.attribute.type.NodeCaseBuilder();
 209                         if (lsattr != null && lsattr.getNodeAttributes() != null) {
 210                             b.setNodeAttributes(new NodeAttributesBuilder(lsattr.getNodeAttributes()).build());
 211                         }
 212                         return b.build();
 213                     }
 214
 215                     @Override
 216                     protected NodeCase createObject(final CLinkstateDestination key) {
 217                         return new NodeCaseBuilder().setNodeDescriptors(new NodeDescriptorsBuilder(key.getLocalNodeDescriptors()).build()).build();
 218                     }
 219                 };
 220                 break;
 221             default:
 222                 break;
 223             }
 224             super.add(trans, peer, key, data);
 225         }
 226     }
 227
 228     @Override
 229     public void removeRoutes(final AdjRIBsTransaction trans, final Peer peer, final MpUnreachNlri nlri) {
 230         final DestinationLinkstate keys = ((org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.path.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationLinkstateCase) nlri.getWithdrawnRoutes().getDestinationType()).getDestinationLinkstate();
 231
 232         for (final CLinkstateDestination key : keys.getCLinkstateDestination()) {
 233             super.remove(trans, peer, key);
 234         }
 235     }
 236
 237     @Override
 238     public void addAdvertisement(final MpReachNlriBuilder builder, final LinkstateRoute data) {
 239         final CLinkstateDestinationBuilder nlri = new CLinkstateDestinationBuilder();
 240         nlri.setProtocolId(data.getProtocolId());
 241         nlri.setIdentifier(data.getIdentifier());
 242         final Attributes a = data.getAttributes();
 243         if (a != null && a.getCNextHop() != null) {
 244             builder.setCNextHop(a.getCNextHop());
 245         }
 246         final ObjectType type = data.getObjectType();
 247         if (type instanceof PrefixCase) {
 248             final PrefixCase prefix = (PrefixCase) type;
 249             final IpPrefix ip = prefix.getIpReachabilityInformation();
 250
 251             if (ip.getIpv4Prefix() != null) {
 252                 nlri.setNlriType(NlriType.Ipv4Prefix);
 253             } else if (ip.getIpv6Prefix() != null) {
 254                 nlri.setNlriType(NlriType.Ipv6Prefix);
 255             } else {
 256                 throw new IllegalArgumentException("Unsupported reachability type " + ip);
 257             }
 258             nlri.setLocalNodeDescriptors(new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.destination.c.linkstate.destination.LocalNodeDescriptorsBuilder(prefix.getAdvertisingNodeDescriptors()).build());
 259
 260         } else if (type instanceof NodeCase) {
 261             final NodeCase node = (NodeCase) type;
 262
 263             nlri.setNlriType(NlriType.Node);
 264             nlri.setLocalNodeDescriptors(new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.destination.c.linkstate.destination.LocalNodeDescriptorsBuilder(node.getNodeDescriptors()).build());
 265         } else if (type instanceof LinkCase) {
 266             final LinkCase link = (LinkCase) type;
 267
 268             nlri.setNlriType(NlriType.Link);
 269             nlri.setLinkDescriptors(new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.destination.c.linkstate.destination.LinkDescriptorsBuilder(link.getLinkDescriptors()).build());
 270             nlri.setLocalNodeDescriptors(new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.destination.c.linkstate.destination.LocalNodeDescriptorsBuilder(link.getLocalNodeDescriptors()).build());
 271             nlri.setRemoteNodeDescriptors(new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.destination.c.linkstate.destination.RemoteNodeDescriptorsBuilder(link.getRemoteNodeDescriptors()).build());
 272         } else {
 273             throw new IllegalArgumentException("Unhandled linkstate route type " + type);
 274         }
 275
 276         final AdvertizedRoutes ar = builder.getAdvertizedRoutes();
 277         if (ar == null) {
 278             builder.setAdvertizedRoutes(new AdvertizedRoutesBuilder().setDestinationType(
 279                 new DestinationLinkstateCaseBuilder().setDestinationLinkstate(new DestinationLinkstateBuilder()
 280                     .setCLinkstateDestination(Lists.newArrayList(nlri.build())).build()).build()).build());
 281         } else {
 282             ((DestinationLinkstateCase) ar.getDestinationType()).getDestinationLinkstate().getCLinkstateDestination().add(nlri.build());
 283         }
 284     }
 285
 286     @Override
 287     public void addWithdrawal(final MpUnreachNlriBuilder builder, final CLinkstateDestination id) {
 288         final WithdrawnRoutes wr = builder.getWithdrawnRoutes();
 289         if (wr == null) {
 290             builder.setWithdrawnRoutes(new WithdrawnRoutesBuilder().setDestinationType(
 291                 new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.path.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationLinkstateCaseBuilder().setDestinationLinkstate(
 292                     new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.path.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.destination.linkstate._case.DestinationLinkstateBuilder()
 293                         .setCLinkstateDestination(Lists.newArrayList(id)).build()).build()).build());
 294         } else {
 295             ((org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.path.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationLinkstateCase) wr.getDestinationType())
 296             .getDestinationLinkstate().getCLinkstateDestination().add(id);
 297         }
 298     }
 299
 300     @SuppressWarnings("unchecked")
 301     @Override
 302     public KeyedInstanceIdentifier<LinkstateRoute, LinkstateRouteKey> routeIdentifier(final InstanceIdentifier<?> id) {
 303         return (KeyedInstanceIdentifier<LinkstateRoute, LinkstateRouteKey>)id.firstIdentifierOf(LinkstateRoute.class);
 304     }
 305
 306     @Override
 307     public CLinkstateDestination keyForIdentifier(final KeyedInstanceIdentifier<LinkstateRoute, LinkstateRouteKey> id) {
 308         final LinkstateRouteKey route = id.getKey();
 309         List<CLinkstateDestination> dests = null;
 310         try {
 311             dests = LinkstateNlriParser.parseNlri(Unpooled.wrappedBuffer(route.getRouteKey()), false);
 312         } catch (final BGPParsingException e) {
 313             LOG.warn("Unable to parse LinkstateRoute Key {}", route, e);
 314         }
 315         if (dests == null || dests.size() != 1) {
 316             LOG.warn("Null or more than one LinkstateRoute Key was parsed");
 317             return null;
 318         }
 319         return dests.get(0);
 320     }
 321 }