4f603808fa6400e745bb79db6f61ebf51c3f8ebc
[bgpcep.git] / 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.util.CheckUtil.readDataOperational;
13 import static org.opendaylight.protocol.util.CheckUtil.waitFutureSuccess;
14
15 import com.google.common.base.Optional;
16 import com.google.common.collect.ImmutableList;
17 import com.google.common.collect.Lists;
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 java.util.concurrent.TimeUnit;
27 import javassist.ClassPool;
28 import org.junit.After;
29 import org.junit.Assert;
30 import org.junit.Before;
31 import org.mockito.Mock;
32 import org.mockito.Mockito;
33 import org.mockito.MockitoAnnotations;
34 import org.opendaylight.controller.md.sal.binding.test.AbstractConcurrentDataBrokerTest;
35 import org.opendaylight.mdsal.binding.dom.adapter.BindingToNormalizedNodeCodec;
36 import org.opendaylight.mdsal.binding.dom.codec.gen.impl.StreamWriterGenerator;
37 import org.opendaylight.mdsal.binding.dom.codec.impl.BindingNormalizedNodeCodecRegistry;
38 import org.opendaylight.mdsal.binding.generator.impl.GeneratedClassLoadingStrategy;
39 import org.opendaylight.mdsal.binding.generator.impl.ModuleInfoBackedContext;
40 import org.opendaylight.mdsal.binding.generator.util.JavassistUtils;
41 import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonService;
42 import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceProvider;
43 import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceRegistration;
44 import org.opendaylight.protocol.bgp.inet.RIBActivator;
45 import org.opendaylight.protocol.bgp.parser.BGPError;
46 import org.opendaylight.protocol.bgp.parser.BgpTableTypeImpl;
47 import org.opendaylight.protocol.bgp.parser.impl.BGPActivator;
48 import org.opendaylight.protocol.bgp.parser.spi.BGPExtensionProviderContext;
49 import org.opendaylight.protocol.bgp.parser.spi.pojo.SimpleBGPExtensionProviderContext;
50 import org.opendaylight.protocol.bgp.rib.impl.spi.BGPPeerRegistry;
51 import org.opendaylight.protocol.bgp.rib.impl.spi.BGPSessionPreferences;
52 import org.opendaylight.protocol.bgp.rib.spi.RIBExtensionProviderContext;
53 import org.opendaylight.protocol.bgp.rib.spi.SimpleRIBExtensionProviderContext;
54 import org.opendaylight.protocol.util.InetSocketAddressUtil;
55 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.AsNumber;
56 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
57 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address;
58 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Prefix;
59 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev171207.bgp.rib.rib.loc.rib.tables.routes.Ipv4RoutesCase;
60 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev171207.ipv4.prefixes.DestinationIpv4Builder;
61 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev171207.ipv4.prefixes.destination.ipv4.Ipv4PrefixesBuilder;
62 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev171207.ipv4.routes.ipv4.routes.Ipv4Route;
63 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev171207.update.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationIpv4Case;
64 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev171207.update.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationIpv4CaseBuilder;
65 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.NotifyBuilder;
66 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.Open;
67 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.OpenBuilder;
68 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.PathId;
69 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.Update;
70 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.UpdateBuilder;
71 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.open.message.BgpParameters;
72 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.open.message.BgpParametersBuilder;
73 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.open.message.bgp.parameters.OptionalCapabilities;
74 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.open.message.bgp.parameters.OptionalCapabilitiesBuilder;
75 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.open.message.bgp.parameters.optional.capabilities.CParametersBuilder;
76 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.path.attributes.AttributesBuilder;
77 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.path.attributes.attributes.AsPathBuilder;
78 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.path.attributes.attributes.ClusterIdBuilder;
79 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.path.attributes.attributes.LocalPrefBuilder;
80 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.path.attributes.attributes.OriginBuilder;
81 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.path.attributes.attributes.OriginatorIdBuilder;
82 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.path.attributes.attributes.as.path.SegmentsBuilder;
83 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.update.message.WithdrawnRoutesBuilder;
84 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev171207.Attributes1;
85 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev171207.Attributes1Builder;
86 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev171207.BgpTableType;
87 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev171207.CParameters1;
88 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev171207.CParameters1Builder;
89 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev171207.SendReceive;
90 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev171207.mp.capabilities.AddPathCapabilityBuilder;
91 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev171207.mp.capabilities.MultiprotocolCapability;
92 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev171207.mp.capabilities.MultiprotocolCapabilityBuilder;
93 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev171207.mp.capabilities.add.path.capability.AddressFamiliesBuilder;
94 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev171207.update.attributes.MpReachNlri;
95 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev171207.update.attributes.MpReachNlriBuilder;
96 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev171207.update.attributes.mp.reach.nlri.AdvertizedRoutes;
97 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev171207.update.attributes.mp.reach.nlri.AdvertizedRoutesBuilder;
98 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev171207.BgpRib;
99 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev171207.PeerRole;
100 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev171207.rib.TablesKey;
101 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.BgpId;
102 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.BgpOrigin;
103 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.ClusterIdentifier;
104 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.Ipv4AddressFamily;
105 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.UnicastSubsequentAddressFamily;
106 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.c.next.hop.Ipv4NextHopCaseBuilder;
107 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;
108 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
109 import org.opendaylight.yangtools.yang.binding.Notification;
110 import org.opendaylight.yangtools.yang.binding.util.BindingReflections;
111 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
112
113 public abstract class AbstractAddPathTest extends AbstractConcurrentDataBrokerTest {
114     private static final int RETRY_TIMER = 10;
115     static final String RIB_ID = "127.0.0.1";
116     static final BgpId BGP_ID = new BgpId(RIB_ID);
117     static final Ipv4Address PEER1 = new Ipv4Address("127.0.0.2");
118     static final Ipv4Address PEER2 = new Ipv4Address("127.0.0.3");
119     static final Ipv4Address PEER3 = new Ipv4Address("127.0.0.4");
120     static final Ipv4Address PEER4 = new Ipv4Address("127.0.0.5");
121     static final Ipv4Address PEER5 = new Ipv4Address("127.0.0.6");
122     static final Ipv4Address PEER6 = new Ipv4Address("127.0.0.7");
123     static final AsNumber AS_NUMBER = new AsNumber(72L);
124     static final int PORT = InetSocketAddressUtil.getRandomPort();
125     static final Ipv4Prefix PREFIX1 = new Ipv4Prefix("1.1.1.1/32");
126     private static final ClusterIdentifier CLUSTER_ID = new ClusterIdentifier(RIB_ID);
127     static final int HOLDTIMER = 2180;
128     private static final Ipv4Address NH1 = new Ipv4Address("2.2.2.2");
129     static final Update UPD_100 = createSimpleUpdate(PREFIX1, new PathId(1L), CLUSTER_ID, 100);
130     static final Update UPD_50 = createSimpleUpdate(PREFIX1, new PathId(2L), CLUSTER_ID, 50);
131     static final Update UPD_200 = createSimpleUpdate(PREFIX1, new PathId(3L), CLUSTER_ID, 200);
132     static final Update UPD_20 = createSimpleUpdate(PREFIX1, new PathId(1L), CLUSTER_ID, 20);
133     static final Update UPD_NA_100 = createSimpleUpdate(PREFIX1, null, CLUSTER_ID, 100);
134     static final Update UPD_NA_100_EBGP = createSimpleUpdateEbgp(PREFIX1);
135     static final Update UPD_NA_200 = createSimpleUpdate(PREFIX1, null, CLUSTER_ID, 200);
136     static final Update UPD_NA_200_EBGP = createSimpleUpdateEbgp(PREFIX1);
137     static final TablesKey TABLES_KEY = new TablesKey(Ipv4AddressFamily.class, UnicastSubsequentAddressFamily.class);
138     static final List<BgpTableType> TABLES_TYPE = ImmutableList.of(new BgpTableTypeImpl(TABLES_KEY.getAfi(),
139         TABLES_KEY.getSafi()));
140     static final Set<TablesKey> AFI_SAFIS_ADVERTIZED = Collections.singleton(TABLES_KEY);
141     private BGPExtensionProviderContext context;
142     private static final InstanceIdentifier<BgpRib> BGP_IID = InstanceIdentifier.create(BgpRib.class);
143     protected SchemaContext schemaContext;
144     @Mock
145     protected ClusterSingletonServiceProvider clusterSingletonServiceProvider;
146     BindingToNormalizedNodeCodec mappingService;
147     BGPDispatcherImpl serverDispatcher;
148     RIBExtensionProviderContext ribExtension;
149     private RIBActivator ribActivator;
150     private BGPActivator bgpActivator;
151     private NioEventLoopGroup worker;
152     private NioEventLoopGroup boss;
153     private org.opendaylight.protocol.bgp.inet.BGPActivator inetActivator;
154     protected StrictBGPPeerRegistry serverRegistry;
155     protected BGPPeerTrackerImpl peerTracker = new BGPPeerTrackerImpl();
156     protected CodecsRegistryImpl codecsRegistry;
157
158     @Before
159     public void setUp() throws Exception {
160         MockitoAnnotations.initMocks(this);
161         this.ribActivator = new RIBActivator();
162         this.ribExtension = new SimpleRIBExtensionProviderContext();
163
164         this.ribActivator.startRIBExtensionProvider(this.ribExtension);
165
166         this.bgpActivator = new BGPActivator();
167         this.inetActivator = new org.opendaylight.protocol.bgp.inet.BGPActivator();
168         this.context = new SimpleBGPExtensionProviderContext();
169         this.bgpActivator.start(this.context);
170         this.inetActivator.start(this.context);
171
172         this.mappingService = new BindingToNormalizedNodeCodec(
173             GeneratedClassLoadingStrategy.getTCCLClassLoadingStrategy(),
174             new BindingNormalizedNodeCodecRegistry(StreamWriterGenerator.create(
175                 JavassistUtils.forClassPool(ClassPool.getDefault()))));
176         final ModuleInfoBackedContext moduleInfoBackedContext = ModuleInfoBackedContext.create();
177         moduleInfoBackedContext.registerModuleInfo(BindingReflections.getModuleInfo(BgpParameters.class));
178         moduleInfoBackedContext.registerModuleInfo(BindingReflections.getModuleInfo(MultiprotocolCapability.class));
179         moduleInfoBackedContext.registerModuleInfo(BindingReflections.getModuleInfo(DestinationIpv4Case.class));
180         moduleInfoBackedContext.registerModuleInfo(BindingReflections.getModuleInfo(AdvertizedRoutes.class));
181         moduleInfoBackedContext.registerModuleInfo(BindingReflections.getModuleInfo(BgpRib.class));
182         moduleInfoBackedContext.registerModuleInfo(BindingReflections.getModuleInfo(Attributes1.class));
183         moduleInfoBackedContext.registerModuleInfo(BindingReflections.getModuleInfo(MpReachNlri.class));
184         this.mappingService.onGlobalContextUpdated(moduleInfoBackedContext.tryToCreateSchemaContext().get());
185         this.schemaContext = moduleInfoBackedContext.getSchemaContext();
186         if (!Epoll.isAvailable()) {
187             this.worker = new NioEventLoopGroup();
188             this.boss = new NioEventLoopGroup();
189         }
190         this.serverRegistry = new StrictBGPPeerRegistry();
191         this.serverDispatcher = new BGPDispatcherImpl(this.context.getMessageRegistry(), this.boss, this.worker,
192             this.serverRegistry);
193         doReturn(Mockito.mock(ClusterSingletonServiceRegistration.class)).when(this.clusterSingletonServiceProvider)
194             .registerClusterSingletonService(any(ClusterSingletonService.class));
195
196         this.codecsRegistry = CodecsRegistryImpl.create(this.mappingService.getCodecFactory(),
197                 this.ribExtension.getClassLoadingStrategy());
198     }
199
200     @After
201     public void tearDown() throws ExecutionException, InterruptedException {
202         this.serverDispatcher.close();
203         if (!Epoll.isAvailable()) {
204             this.worker.shutdownGracefully(0, 0, TimeUnit.SECONDS);
205             this.boss.shutdownGracefully(0, 0, TimeUnit.SECONDS);
206         }
207         this.mappingService.close();
208         this.ribActivator.close();
209         this.inetActivator.close();
210         this.bgpActivator.close();
211     }
212
213     void sendRouteAndCheckIsOnLocRib(final BGPSessionImpl session, final Ipv4Prefix prefix, final long localPreference,
214         final int expectedRoutesOnDS) throws Exception {
215         waitFutureSuccess(session.writeAndFlush(createSimpleUpdate(prefix, null, null, localPreference)));
216         checkLocRib(expectedRoutesOnDS);
217     }
218
219     void sendWithdrawalRouteAndCheckIsOnLocRib(final BGPSessionImpl session, final Ipv4Prefix prefix,
220         final long localPreference, final int expectedRoutesOnDS) throws Exception {
221         waitFutureSuccess(session.writeAndFlush(createSimpleWithdrawalUpdate(prefix, localPreference)));
222         checkLocRib(expectedRoutesOnDS);
223     }
224
225     void sendNotification(final BGPSessionImpl session) {
226         final Notification notMsg = new NotifyBuilder().setErrorCode(BGPError.OPT_PARAM_NOT_SUPPORTED.getCode())
227             .setErrorSubcode(BGPError.OPT_PARAM_NOT_SUPPORTED.getSubcode()).setData(new byte[] { 4, 9 }).build();
228         waitFutureSuccess(session.writeAndFlush(notMsg));
229     }
230
231     void causeBGPError(final BGPSessionImpl session) {
232         final Open openObj = new OpenBuilder().setBgpIdentifier(new Ipv4Address("1.1.1.1"))
233             .setHoldTimer(50).setMyAsNumber(72).build();
234         waitFutureSuccess(session.writeAndFlush(openObj));
235     }
236
237     private void checkLocRib(final int expectedRoutesOnDS) throws Exception {
238         Thread.sleep(100);
239         readDataOperational(getDataBroker(), BGP_IID, bgpRib -> {
240             final Ipv4RoutesCase routes = (Ipv4RoutesCase) bgpRib.getRib().get(0).getLocRib().getTables().get(0)
241                 .getRoutes();
242             final List<Ipv4Route> routeList = routes.getIpv4Routes().getIpv4Route();
243             Assert.assertEquals(expectedRoutesOnDS, routeList.size());
244             return bgpRib;
245         });
246     }
247
248     void checkPeersPresentOnDataStore(final int numberOfPeers) throws Exception {
249         readDataOperational(getDataBroker(), BGP_IID, bgpRib -> {
250             Assert.assertEquals(numberOfPeers, bgpRib.getRib().get(0).getPeer().size());
251             return bgpRib;
252         });
253     }
254
255     BGPSessionImpl createPeerSession(final Ipv4Address peer, final BgpParameters bgpParameters,
256         final SimpleSessionListener sessionListener) throws InterruptedException {
257         final StrictBGPPeerRegistry clientRegistry = new StrictBGPPeerRegistry();
258         final BGPDispatcherImpl clientDispatcher = new BGPDispatcherImpl(this.context.getMessageRegistry(), this.boss,
259             this.worker, clientRegistry);
260         clientRegistry.addPeer(new IpAddress(new Ipv4Address(RIB_ID)), sessionListener,
261             new BGPSessionPreferences(AS_NUMBER, HOLDTIMER, new BgpId(peer),
262                 AS_NUMBER, Lists.newArrayList(bgpParameters), Optional.absent()));
263
264         return connectPeer(peer, clientDispatcher);
265     }
266
267     protected static BGPPeer configurePeer(final Ipv4Address peerAddress, final RIBImpl ribImpl,
268         final BgpParameters bgpParameters, final PeerRole peerRole, final BGPPeerRegistry bgpPeerRegistry) {
269         final IpAddress ipAddress = new IpAddress(peerAddress);
270
271         final BGPPeer bgpPeer = new BGPPeer(new IpAddress(peerAddress), ribImpl, peerRole, null,
272             AFI_SAFIS_ADVERTIZED, Collections.emptySet());
273         final List<BgpParameters> tlvs = Lists.newArrayList(bgpParameters);
274         bgpPeerRegistry.addPeer(ipAddress, bgpPeer,
275             new BGPSessionPreferences(AS_NUMBER, HOLDTIMER, new BgpId(RIB_ID), AS_NUMBER, tlvs, Optional.absent()));
276         bgpPeer.instantiateServiceInstance();
277         return bgpPeer;
278     }
279
280     private static BGPSessionImpl connectPeer(final Ipv4Address localAddress, final BGPDispatcherImpl dispatcherImpl)
281         throws InterruptedException {
282         final Future<BGPSessionImpl> future = dispatcherImpl.createClient(new InetSocketAddress(localAddress.getValue(), PORT),
283             new InetSocketAddress(RIB_ID, PORT), RETRY_TIMER, true);
284         Thread.sleep(200);
285         waitFutureSuccess(future);
286         Thread.sleep(100);
287         return future.getNow();
288     }
289
290     protected static BgpParameters createParameter(final boolean addPath) {
291         final OptionalCapabilities mp = new OptionalCapabilitiesBuilder().setCParameters(
292             new CParametersBuilder().addAugmentation(CParameters1.class,
293                 new CParameters1Builder().setMultiprotocolCapability(
294                     new MultiprotocolCapabilityBuilder().setAfi(Ipv4AddressFamily.class).setSafi(UnicastSubsequentAddressFamily.class)
295                         .build()).build()).build()).build();
296         final List<OptionalCapabilities> capabilities = Lists.newArrayList(mp);
297         if (addPath) {
298             final OptionalCapabilities addPathCapa = new OptionalCapabilitiesBuilder().setCParameters(
299                 new CParametersBuilder().addAugmentation(CParameters1.class,
300                     new CParameters1Builder().setAddPathCapability(
301                         new AddPathCapabilityBuilder().setAddressFamilies(Lists.newArrayList(
302                             new AddressFamiliesBuilder()
303                                 .setAfi(Ipv4AddressFamily.class)
304                                 .setSafi(UnicastSubsequentAddressFamily.class)
305                                 .setSendReceive(SendReceive.Both)
306                                 .build()))
307                             .build()).build()).build()).build();
308             capabilities.add(addPathCapa);
309         }
310         return new BgpParametersBuilder().setOptionalCapabilities(capabilities).build();
311     }
312
313     private static Update createSimpleUpdate(final Ipv4Prefix prefix, final PathId pathId, final ClusterIdentifier clusterId,
314         final long localPreference) {
315         final AttributesBuilder attBuilder = new AttributesBuilder();
316         attBuilder.setLocalPref(new LocalPrefBuilder().setPref(localPreference).build());
317         attBuilder.setOrigin(new OriginBuilder().setValue(BgpOrigin.Igp).build());
318         attBuilder.setAsPath(new AsPathBuilder().setSegments(Collections.emptyList()).build());
319         if (clusterId != null) {
320             attBuilder.setClusterId(new ClusterIdBuilder().setCluster(Collections.singletonList(clusterId)).build());
321             attBuilder.setOriginatorId(new OriginatorIdBuilder().setOriginator(new Ipv4Address(clusterId)).build());
322         }
323         addAttributeAugmentation(attBuilder, prefix, pathId);
324         return new UpdateBuilder().setAttributes(attBuilder.build()).build();
325     }
326
327     private static Update createSimpleUpdateEbgp(final Ipv4Prefix prefix) {
328         final AttributesBuilder attBuilder = new AttributesBuilder();
329         attBuilder.setOrigin(new OriginBuilder().setValue(BgpOrigin.Igp).build());
330         attBuilder.setAsPath(new AsPathBuilder().setSegments(Collections.singletonList(
331             new SegmentsBuilder().setAsSequence(Collections.singletonList(AS_NUMBER)).build())).build());
332         addAttributeAugmentation(attBuilder, prefix, null);
333
334         return new UpdateBuilder().setAttributes(attBuilder.build()).build();
335     }
336
337     private static void addAttributeAugmentation(final AttributesBuilder attBuilder, final Ipv4Prefix prefix,
338         final PathId pathId) {
339         attBuilder.setUnrecognizedAttributes(Collections.emptyList());
340         attBuilder.addAugmentation(Attributes1.class,
341             new Attributes1Builder().setMpReachNlri(
342                 new MpReachNlriBuilder()
343                     .setCNextHop(new Ipv4NextHopCaseBuilder().setIpv4NextHop(new Ipv4NextHopBuilder().setGlobal(NH1)
344                         .build()).build())
345                     .setAfi(Ipv4AddressFamily.class)
346                     .setSafi(UnicastSubsequentAddressFamily.class)
347                     .setAdvertizedRoutes(new AdvertizedRoutesBuilder().setDestinationType(
348                         new DestinationIpv4CaseBuilder().setDestinationIpv4(
349                             new DestinationIpv4Builder().setIpv4Prefixes(Collections.singletonList(
350                                 new Ipv4PrefixesBuilder().setPathId(pathId).setPrefix(new Ipv4Prefix(prefix)).build()))
351                                 .build())
352                             .build()).build())
353                     .build()).build());
354     }
355
356     private static Update createSimpleWithdrawalUpdate(final Ipv4Prefix prefix, final long localPreference) {
357         final AttributesBuilder attBuilder = new AttributesBuilder();
358         attBuilder.setLocalPref(new LocalPrefBuilder().setPref(localPreference).build());
359         attBuilder.setOrigin(new OriginBuilder().setValue(BgpOrigin.Igp).build());
360         attBuilder.setAsPath(new AsPathBuilder().setSegments(Collections.emptyList()).build());
361         attBuilder.setUnrecognizedAttributes(Collections.emptyList());
362         return new UpdateBuilder()
363                 .setWithdrawnRoutes(Collections.singletonList(new WithdrawnRoutesBuilder().setPrefix(prefix).build()))
364                 .build();
365     }
366 }