bgp/rib-impl/src/test/java/org/opendaylight/protocol/bgp/rib/impl/AbstractAddPathTest.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 package org.opendaylight.protocol.bgp.rib.impl;
   9
  10 import static org.mockito.Matchers.any;
  11 import static org.mockito.Mockito.doReturn;
  12 import static org.opendaylight.protocol.bgp.rib.impl.CheckUtil.readData;
  13 import static org.opendaylight.protocol.bgp.rib.impl.CheckUtil.waitFutureSuccess;
  14
  15 import com.google.common.base.Optional;
  16 import com.google.common.collect.Lists;
  17 import com.google.common.net.InetAddresses;
  18 import io.netty.channel.epoll.Epoll;
  19 import io.netty.channel.nio.NioEventLoopGroup;
  20 import io.netty.util.concurrent.Future;
  21 import java.net.InetSocketAddress;
  22 import java.util.Collections;
  23 import java.util.List;
  24 import java.util.Set;
  25 import java.util.concurrent.ExecutionException;
  26 import javassist.ClassPool;
  27 import org.junit.After;
  28 import org.junit.Assert;
  29 import org.junit.Before;
  30 import org.mockito.Mock;
  31 import org.mockito.Mockito;
  32 import org.mockito.MockitoAnnotations;
  33 import org.opendaylight.controller.md.sal.binding.impl.BindingToNormalizedNodeCodec;
  34 import org.opendaylight.controller.md.sal.binding.test.AbstractDataBrokerTest;
  35 import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonService;
  36 import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceProvider;
  37 import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceRegistration;
  38 import org.opendaylight.protocol.bgp.inet.RIBActivator;
  39 import org.opendaylight.protocol.bgp.parser.impl.BGPActivator;
  40 import org.opendaylight.protocol.bgp.parser.spi.BGPExtensionProviderContext;
  41 import org.opendaylight.protocol.bgp.parser.spi.pojo.SimpleBGPExtensionProviderContext;
  42 import org.opendaylight.protocol.bgp.rib.impl.spi.BGPPeerRegistry;
  43 import org.opendaylight.protocol.bgp.rib.impl.spi.BGPSessionPreferences;
  44 import org.opendaylight.protocol.bgp.rib.spi.BGPSessionListener;
  45 import org.opendaylight.protocol.bgp.rib.spi.RIBExtensionProviderContext;
  46 import org.opendaylight.protocol.bgp.rib.spi.SimpleRIBExtensionProviderContext;
  47 import org.opendaylight.protocol.util.InetSocketAddressUtil;
  48 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.AsNumber;
  49 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
  50 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address;
  51 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Prefix;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.bgp.rib.rib.loc.rib.tables.routes.Ipv4RoutesCase;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv4.prefixes.DestinationIpv4Builder;
  54 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv4.prefixes.destination.ipv4.Ipv4PrefixesBuilder;
  55 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv4.routes.ipv4.routes.Ipv4Route;
  56 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.update.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationIpv4Case;
  57 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.update.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationIpv4CaseBuilder;
  58 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.PathId;
  59 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.Update;
  60 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.UpdateBuilder;
  61 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.BgpParameters;
  62 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.BgpParametersBuilder;
  63 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.OptionalCapabilities;
  64 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.OptionalCapabilitiesBuilder;
  65 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.optional.capabilities.CParametersBuilder;
  66 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.AttributesBuilder;
  67 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.attributes.AsPathBuilder;
  68 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.attributes.ClusterIdBuilder;
  69 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.attributes.LocalPrefBuilder;
  70 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.attributes.OriginBuilder;
  71 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.attributes.OriginatorIdBuilder;
  72 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.attributes.as.path.SegmentsBuilder;
  73 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.update.message.WithdrawnRoutesBuilder;
  74 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.Attributes1;
  75 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.Attributes1Builder;
  76 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.CParameters1;
  77 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.CParameters1Builder;
  78 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.SendReceive;
  79 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.mp.capabilities.AddPathCapabilityBuilder;
  80 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.mp.capabilities.MultiprotocolCapability;
  81 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.mp.capabilities.MultiprotocolCapabilityBuilder;
  82 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.mp.capabilities.add.path.capability.AddressFamiliesBuilder;
  83 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpReachNlri;
  84 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpReachNlriBuilder;
  85 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.mp.reach.nlri.AdvertizedRoutes;
  86 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.mp.reach.nlri.AdvertizedRoutesBuilder;
  87 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.BgpRib;
  88 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.PeerRole;
  89 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.bgp.rib.rib.Peer;
  90 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.TablesKey;
  91 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.BgpId;
  92 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.BgpOrigin;
  93 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.ClusterIdentifier;
  94 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.Ipv4AddressFamily;
  95 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.UnicastSubsequentAddressFamily;
  96 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.c.next.hop.Ipv4NextHopCaseBuilder;
  97 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.c.next.hop.ipv4.next.hop._case.Ipv4NextHopBuilder;
  98 import org.opendaylight.yangtools.binding.data.codec.gen.impl.StreamWriterGenerator;
  99 import org.opendaylight.yangtools.binding.data.codec.impl.BindingNormalizedNodeCodecRegistry;
 100 import org.opendaylight.yangtools.sal.binding.generator.impl.GeneratedClassLoadingStrategy;
 101 import org.opendaylight.yangtools.sal.binding.generator.impl.ModuleInfoBackedContext;
 102 import org.opendaylight.yangtools.sal.binding.generator.util.JavassistUtils;
 103 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
 104 import org.opendaylight.yangtools.yang.binding.util.BindingReflections;
 105 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
 106
 107 class AbstractAddPathTest extends AbstractDataBrokerTest {
 108     private static final int RETRY_TIMER = 10;
 109     static final String RIB_ID = "127.0.0.1";
 110     static final Ipv4Address PEER1 = new Ipv4Address("127.0.0.2");
 111     static final Ipv4Address PEER2 = new Ipv4Address("127.0.0.3");
 112     static final Ipv4Address PEER3 = new Ipv4Address("127.0.0.4");
 113     static final Ipv4Address PEER4 = new Ipv4Address("127.0.0.5");
 114     static final Ipv4Address PEER5 = new Ipv4Address("127.0.0.6");
 115     static final Ipv4Address PEER6 = new Ipv4Address("127.0.0.7");
 116     static final AsNumber AS_NUMBER = new AsNumber(72L);
 117     static final int PORT = InetSocketAddressUtil.getRandomPort();
 118     static final Ipv4Prefix PREFIX1 = new Ipv4Prefix("1.1.1.1/32");
 119     private static final ClusterIdentifier CLUSTER_ID = new ClusterIdentifier(RIB_ID);
 120     private static final int HOLDTIMER = 2180;
 121     private static final Ipv4Address NH1 = new Ipv4Address("2.2.2.2");
 122     static final Update UPD_100 = createSimpleUpdate(PREFIX1, new PathId(1L), CLUSTER_ID, 100);
 123     static final Update UPD_50 = createSimpleUpdate(PREFIX1, new PathId(2L), CLUSTER_ID, 50);
 124     static final Update UPD_200 = createSimpleUpdate(PREFIX1, new PathId(3L), CLUSTER_ID, 200);
 125     static final Update UPD_20 = createSimpleUpdate(PREFIX1, new PathId(1L), CLUSTER_ID, 20);
 126     static final Update UPD_NA_100 = createSimpleUpdate(PREFIX1, null, CLUSTER_ID, 100);
 127     static final Update UPD_NA_100_EBGP = createSimpleUpdateEbgp(PREFIX1, null);
 128     static final Update UPD_NA_200 = createSimpleUpdate(PREFIX1, null, CLUSTER_ID, 200);
 129     static final Update UPD_NA_200_EBGP = createSimpleUpdateEbgp(PREFIX1, null);
 130     static final TablesKey TABLES_KEY = new TablesKey(Ipv4AddressFamily.class, UnicastSubsequentAddressFamily.class);
 131     static final Set<TablesKey> AFI_SAFIS_ADVERTIZED = Collections.singleton(TABLES_KEY);
 132     protected BGPExtensionProviderContext context;
 133     private static final InstanceIdentifier<BgpRib> BGP_IID = InstanceIdentifier.create(BgpRib.class);
 134     protected SchemaContext schemaContext;
 135     @Mock
 136     protected ClusterSingletonServiceProvider clusterSingletonServiceProvider;
 137     BindingToNormalizedNodeCodec mappingService;
 138     BGPDispatcherImpl dispatcher;
 139     RIBExtensionProviderContext ribExtension;
 140     private RIBActivator ribActivator;
 141     private BGPActivator bgpActivator;
 142     private NioEventLoopGroup worker;
 143     private NioEventLoopGroup boss;
 144     private org.opendaylight.protocol.bgp.inet.BGPActivator inetActivator;
 145
 146     @Before
 147     public void setUp() throws Exception {
 148         MockitoAnnotations.initMocks(this);
 149         this.ribActivator = new RIBActivator();
 150         this.ribExtension = new SimpleRIBExtensionProviderContext();
 151
 152         this.ribActivator.startRIBExtensionProvider(this.ribExtension);
 153
 154         this.bgpActivator = new BGPActivator();
 155         this.inetActivator = new org.opendaylight.protocol.bgp.inet.BGPActivator();
 156         this.context = new SimpleBGPExtensionProviderContext();
 157         this.bgpActivator.start(this.context);
 158         this.inetActivator.start(this.context);
 159
 160         this.mappingService = new BindingToNormalizedNodeCodec(GeneratedClassLoadingStrategy.getTCCLClassLoadingStrategy(),
 161             new BindingNormalizedNodeCodecRegistry(StreamWriterGenerator.create(JavassistUtils.forClassPool(ClassPool.getDefault()))));
 162         final ModuleInfoBackedContext moduleInfoBackedContext = ModuleInfoBackedContext.create();
 163         moduleInfoBackedContext.registerModuleInfo(BindingReflections.getModuleInfo(BgpParameters.class));
 164         moduleInfoBackedContext.registerModuleInfo(BindingReflections.getModuleInfo(MultiprotocolCapability.class));
 165         moduleInfoBackedContext.registerModuleInfo(BindingReflections.getModuleInfo(DestinationIpv4Case.class));
 166         moduleInfoBackedContext.registerModuleInfo(BindingReflections.getModuleInfo(AdvertizedRoutes.class));
 167         moduleInfoBackedContext.registerModuleInfo(BindingReflections.getModuleInfo(BgpRib.class));
 168         moduleInfoBackedContext.registerModuleInfo(BindingReflections.getModuleInfo(Attributes1.class));
 169         moduleInfoBackedContext.registerModuleInfo(BindingReflections.getModuleInfo(MpReachNlri.class));
 170         this.mappingService.onGlobalContextUpdated(moduleInfoBackedContext.tryToCreateSchemaContext().get());
 171         this.schemaContext = moduleInfoBackedContext.getSchemaContext();
 172         if (!Epoll.isAvailable()) {
 173             this.worker = new NioEventLoopGroup();
 174             this.boss = new NioEventLoopGroup();
 175         }
 176         this.dispatcher = new BGPDispatcherImpl(this.context.getMessageRegistry(), this.boss, this.worker);
 177         doReturn(Mockito.mock(ClusterSingletonServiceRegistration.class)).when(this.clusterSingletonServiceProvider)
 178             .registerClusterSingletonService(any(ClusterSingletonService.class));
 179     }
 180
 181     @After
 182     public void tearDown() {
 183         this.dispatcher.close();
 184         if (!Epoll.isAvailable()) {
 185             this.worker.shutdownGracefully().awaitUninterruptibly();
 186             this.boss.shutdownGracefully().awaitUninterruptibly();
 187         }
 188         this.mappingService.close();
 189         this.ribActivator.close();
 190         this.inetActivator.close();
 191         this.bgpActivator.close();
 192     }
 193
 194     void sendRouteAndCheckIsOnLocRib(final BGPSessionImpl session, final Ipv4Prefix prefix, final long localPreference, final int expectedRoutesOnDS)
 195         throws Exception {
 196         waitFutureSuccess(session.writeAndFlush(createSimpleUpdate(prefix, null, null, localPreference)));
 197         checkLocRib(expectedRoutesOnDS);
 198     }
 199
 200     void sendWithdrawalRouteAndCheckIsOnLocRib(final BGPSessionImpl session, final Ipv4Prefix prefix, final long localPreference, final int expectedRoutesOnDS)
 201         throws Exception {
 202         waitFutureSuccess(session.writeAndFlush(createSimpleWithdrawalUpdate(prefix, localPreference)));
 203         checkLocRib(expectedRoutesOnDS);
 204     }
 205
 206     private void checkLocRib(final int expectedRoutesOnDS) throws Exception {
 207         Thread.sleep(100);
 208         readData(getDataBroker(), BGP_IID, bgpRib -> {
 209             final Ipv4RoutesCase routes = ((Ipv4RoutesCase) bgpRib.getRib().get(0).getLocRib().getTables().get(0).getRoutes());
 210             final List<Ipv4Route> routeList = routes.getIpv4Routes().getIpv4Route();
 211             Assert.assertEquals(expectedRoutesOnDS, routeList.size());
 212             return bgpRib;
 213         });
 214     }
 215
 216     void checkPeersPresentOnDataStore(final int numberOfPeers) throws Exception {
 217         readData(getDataBroker(), BGP_IID, bgpRib -> {
 218             Assert.assertEquals(numberOfPeers, bgpRib.getRib().get(0).getPeer().size());
 219             return bgpRib;
 220         });
 221     }
 222
 223     BGPSessionImpl createPeerSession(final Ipv4Address peer, final PeerRole peerRole, final BgpParameters nonAddPathParams, final RIBImpl ribImpl,
 224         final SimpleSessionListener sessionListener) throws InterruptedException, ExecutionException {
 225         configurePeer(peer, ribImpl, nonAddPathParams, peerRole);
 226         return connectPeer(peer, nonAddPathParams, this.dispatcher, sessionListener);
 227     }
 228
 229     private static int getPeerRibOutSize(final Peer peer) {
 230         return ((org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.bgp.rib.rib.peer.adj.rib.out.tables.routes.Ipv4RoutesCase) peer.getAdjRibOut().getTables().get(0).getRoutes()).getIpv4Routes().getIpv4Route().size();
 231     }
 232
 233     private static void configurePeer(final Ipv4Address localAddress, final RIBImpl ribImpl, final BgpParameters bgpParameters, final PeerRole peerRole) {
 234         final IpAddress ipAddress = new IpAddress(new Ipv4Address(InetAddresses.forString(localAddress.getValue())
 235             .getHostAddress()));
 236
 237
 238         final BGPPeer bgpPeer = new BGPPeer(localAddress.getValue(), ribImpl, peerRole, null, AFI_SAFIS_ADVERTIZED,
 239             Collections.emptySet());
 240         final List<BgpParameters> tlvs = Lists.newArrayList(bgpParameters);
 241         StrictBGPPeerRegistry.GLOBAL.addPeer(ipAddress, bgpPeer,
 242             new BGPSessionPreferences(AS_NUMBER, HOLDTIMER, new BgpId(RIB_ID), AS_NUMBER, tlvs, Optional.absent()));
 243         bgpPeer.instantiateServiceInstance();
 244     }
 245
 246     private static BGPSessionImpl connectPeer(final Ipv4Address localAddress, final BgpParameters bgpParameters,
 247         final BGPDispatcherImpl dispatcherImpl, final BGPSessionListener sessionListener) throws InterruptedException {
 248         final BGPPeerRegistry peerRegistry = new StrictBGPPeerRegistry();
 249         peerRegistry.addPeer(new IpAddress(new Ipv4Address(RIB_ID)), sessionListener,
 250             new BGPSessionPreferences(AS_NUMBER, HOLDTIMER, new BgpId(localAddress),
 251                 AS_NUMBER, Lists.newArrayList(bgpParameters), Optional.absent()));
 252
 253         final Future<BGPSessionImpl> future = dispatcherImpl.createClient(new InetSocketAddress(localAddress.getValue(), PORT),
 254             new InetSocketAddress(RIB_ID, PORT), peerRegistry, RETRY_TIMER, true);
 255         Thread.sleep(200);
 256         waitFutureSuccess(future);
 257         final BGPSessionImpl client = future.getNow();
 258         return client;
 259     }
 260
 261     protected static BgpParameters createParameter(final boolean addPath) {
 262         final OptionalCapabilities mp = new OptionalCapabilitiesBuilder().setCParameters(
 263             new CParametersBuilder().addAugmentation(CParameters1.class,
 264                 new CParameters1Builder().setMultiprotocolCapability(
 265                     new MultiprotocolCapabilityBuilder().setAfi(Ipv4AddressFamily.class).setSafi(UnicastSubsequentAddressFamily.class)
 266                         .build()).build()).build()).build();
 267         final List<OptionalCapabilities> capabilities = Lists.newArrayList(mp);
 268         if (addPath) {
 269             final OptionalCapabilities addPathCapa = new OptionalCapabilitiesBuilder().setCParameters(
 270                 new CParametersBuilder().addAugmentation(CParameters1.class,
 271                     new CParameters1Builder().setAddPathCapability(
 272                         new AddPathCapabilityBuilder().setAddressFamilies(Lists.newArrayList(
 273                             new AddressFamiliesBuilder()
 274                                 .setAfi(Ipv4AddressFamily.class)
 275                                 .setSafi(UnicastSubsequentAddressFamily.class)
 276                                 .setSendReceive(SendReceive.Both)
 277                                 .build()))
 278                             .build()).build()).build()).build();
 279             capabilities.add(addPathCapa);
 280         }
 281         return new BgpParametersBuilder().setOptionalCapabilities(capabilities).build();
 282     }
 283
 284     private static Update createSimpleUpdate(final Ipv4Prefix prefix, final PathId pathId, final ClusterIdentifier clusterId,
 285         final long localPreference) {
 286         final AttributesBuilder attBuilder = new AttributesBuilder();
 287         attBuilder.setLocalPref(new LocalPrefBuilder().setPref(localPreference).build());
 288         attBuilder.setOrigin(new OriginBuilder().setValue(BgpOrigin.Igp).build());
 289         attBuilder.setAsPath(new AsPathBuilder().setSegments(Collections.emptyList()).build());
 290         if (clusterId != null) {
 291             attBuilder.setClusterId(new ClusterIdBuilder().setCluster(Collections.singletonList(clusterId)).build());
 292             attBuilder.setOriginatorId(new OriginatorIdBuilder().setOriginator(new Ipv4Address(clusterId)).build());
 293         }
 294         addAttributeAugmentation(attBuilder, prefix, pathId);
 295         return new UpdateBuilder().setAttributes(attBuilder.build()).build();
 296     }
 297
 298     private static Update createSimpleUpdateEbgp(final Ipv4Prefix prefix, final PathId pathId) {
 299         final AttributesBuilder attBuilder = new AttributesBuilder();
 300         attBuilder.setOrigin(new OriginBuilder().setValue(BgpOrigin.Igp).build());
 301         attBuilder.setAsPath(new AsPathBuilder().setSegments(Collections.singletonList(
 302             new SegmentsBuilder().setAsSequence(Collections.singletonList(AS_NUMBER)).build())).build());
 303         addAttributeAugmentation(attBuilder, prefix, pathId);
 304
 305         return new UpdateBuilder().setAttributes(attBuilder.build()).build();
 306     }
 307
 308     private static void addAttributeAugmentation(final AttributesBuilder attBuilder, final Ipv4Prefix prefix, final PathId pathId) {
 309         attBuilder.setUnrecognizedAttributes(Collections.emptyList());
 310         attBuilder.addAugmentation(Attributes1.class,
 311             new Attributes1Builder().setMpReachNlri(
 312                 new MpReachNlriBuilder()
 313                     .setCNextHop(new Ipv4NextHopCaseBuilder().setIpv4NextHop(new Ipv4NextHopBuilder().setGlobal(NH1).build()).build())
 314                     .setAfi(Ipv4AddressFamily.class)
 315                     .setSafi(UnicastSubsequentAddressFamily.class)
 316                     .setAdvertizedRoutes(new AdvertizedRoutesBuilder().setDestinationType(
 317                         new DestinationIpv4CaseBuilder().setDestinationIpv4(
 318                             new DestinationIpv4Builder().setIpv4Prefixes(Collections.singletonList(
 319                                 new Ipv4PrefixesBuilder().setPathId(pathId).setPrefix(new Ipv4Prefix(prefix)).build())).build())
 320                             .build()).build())
 321                     .build()).build());
 322     }
 323
 324     private static Update createSimpleWithdrawalUpdate(final Ipv4Prefix prefix, final long localPreference) {
 325         final AttributesBuilder attBuilder = new AttributesBuilder();
 326         attBuilder.setLocalPref(new LocalPrefBuilder().setPref(localPreference).build());
 327         attBuilder.setOrigin(new OriginBuilder().setValue(BgpOrigin.Igp).build());
 328         attBuilder.setAsPath(new AsPathBuilder().setSegments(Collections.emptyList()).build());
 329         attBuilder.setUnrecognizedAttributes(Collections.emptyList());
 330         return new UpdateBuilder().setWithdrawnRoutes(new WithdrawnRoutesBuilder().setWithdrawnRoutes(Collections.singletonList(prefix)).build()).build();
 331     }
 332 }