pcep/topology/topology-stats/src/test/java/org/opendaylight/bgpcep/pcep/topology/stats/rpc/TopologyStatsRpcServiceImplTest.java

   1 /*
   2  * Copyright (c) 2019 Lumina Networks, 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.bgpcep.pcep.topology.stats.rpc;
   9
  10 import static org.junit.Assert.assertEquals;
  11 import static org.junit.Assert.assertTrue;
  12
  13 import java.util.Arrays;
  14 import java.util.Collections;
  15 import java.util.List;
  16 import java.util.stream.Collectors;
  17 import org.junit.After;
  18 import org.junit.Before;
  19 import org.junit.Test;
  20 import org.opendaylight.mdsal.binding.api.WriteTransaction;
  21 import org.opendaylight.mdsal.binding.dom.adapter.test.AbstractConcurrentDataBrokerTest;
  22 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.stateful.stats.rev181109.PcepEntityIdRpcAug;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.stateful.stats.rev181109.PcepEntityIdRpcAugBuilder;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.stateful.stats.rev181109.PcepEntityIdStatsAug;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.stateful.stats.rev181109.PcepEntityIdStatsAugBuilder;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.stateful.stats.rev181109.StatefulCapabilitiesRpcAug;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.stateful.stats.rev181109.StatefulCapabilitiesRpcAugBuilder;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.stateful.stats.rev181109.StatefulCapabilitiesStatsAug;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.stateful.stats.rev181109.StatefulCapabilitiesStatsAugBuilder;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.stateful.stats.rev181109.StatefulMessagesRpcAug;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.stateful.stats.rev181109.StatefulMessagesRpcAugBuilder;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.stateful.stats.rev181109.StatefulMessagesStatsAug;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.stateful.stats.rev181109.StatefulMessagesStatsAugBuilder;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.stats.rev171113.error.messages.grouping.ErrorMessages;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.stats.rev171113.error.messages.grouping.ErrorMessagesBuilder;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.stats.rev171113.pcep.session.state.LocalPref;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.stats.rev171113.pcep.session.state.LocalPrefBuilder;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.stats.rev171113.pcep.session.state.Messages;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.stats.rev171113.pcep.session.state.MessagesBuilder;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.stats.rev171113.pcep.session.state.PeerCapabilities;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.stats.rev171113.pcep.session.state.PeerCapabilitiesBuilder;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.stats.rev171113.pcep.session.state.PeerPrefBuilder;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.stats.rev171113.pcep.session.state.grouping.PcepSessionState;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.stats.rev171113.pcep.session.state.grouping.PcepSessionStateBuilder;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.stats.rev171113.reply.time.grouping.ReplyTime;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.stats.rev171113.reply.time.grouping.ReplyTimeBuilder;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.topology.stats.rpc.rev190321.GetStatsInput;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.topology.stats.rpc.rev190321.GetStatsInputBuilder;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.topology.stats.rpc.rev190321.GetStatsOutput;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.topology.stats.rpc.rev190321.GetStatsOutputBuilder;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.stats.rev181109.PcepTopologyNodeStatsAug;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.stats.rev181109.PcepTopologyNodeStatsAugBuilder;
  54 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
  55 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopologyBuilder;
  56 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
  57 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.TopologyId;
  58 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
  59 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyBuilder;
  60 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  61 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeBuilder;
  62 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  63 import org.opendaylight.yangtools.yang.common.RpcResult;
  64 import org.opendaylight.yangtools.yang.common.Uint16;
  65 import org.opendaylight.yangtools.yang.common.Uint32;
  66 import org.opendaylight.yangtools.yang.common.Uint8;
  67
  68 public class TopologyStatsRpcServiceImplTest extends AbstractConcurrentDataBrokerTest {
  69     private static final String TOPOLOGY_ID1 = "pcep-topology-1";
  70     private static final String TOPOLOGY_ID2 = "pcep-topology-2";
  71     private static final String NONEXISTENT_TOPOLOGY = "nonexistent-topology";
  72     private static final String NONPCEP_TOPOLOGY = "nonpcep-topology";
  73     private static final String NODE_ID1 = "pcc://1.1.1.1";
  74     private static final String NODE_ID2 = "pcc://2.2.2.2";
  75     private static final String NODE_ID3 = "pcc://3.3.3.3";
  76     private static final String NONEXISTENT_NODE = "pcc://4.4.4.4";
  77     private static final String NONPCEP_NODE = "nonpcep-node";
  78
  79     TopologyStatsRpcServiceImpl rpcService;
  80
  81     @Before
  82     public void setUp() throws Exception {
  83         rpcService = new TopologyStatsRpcServiceImpl(getDataBroker());
  84         rpcService.init();
  85
  86         // PCEP topology with one PCC node
  87         final Topology t1 = createTopology(TOPOLOGY_ID1, Collections.singletonList(createPcepNode(NODE_ID1)));
  88
  89         // PCEP topology with two PCC node
  90         final Topology t2 =
  91                 createTopology(TOPOLOGY_ID2, Arrays.asList(createPcepNode(NODE_ID2), createPcepNode(NODE_ID3)));
  92
  93         // Non-PCEP topology with one non-PCC node
  94         final Topology t3 = createTopology(NONPCEP_TOPOLOGY,
  95                 Collections.singletonList(new NodeBuilder().setNodeId(new NodeId(NONPCEP_NODE)).build()));
  96
  97         final WriteTransaction wtx = getDataBroker().newWriteOnlyTransaction();
  98         final NetworkTopologyBuilder ntb = new NetworkTopologyBuilder();
  99         ntb.setTopology(Arrays.asList(t1, t2, t3));
 100         wtx.put(LogicalDatastoreType.OPERATIONAL, InstanceIdentifier.builder(NetworkTopology.class).build(),
 101                 ntb.build());
 102         wtx.commit().get();
 103     }
 104
 105     private static Topology createTopology(final String topologyId, final List<Node> nodes) {
 106         return new TopologyBuilder().setTopologyId(new TopologyId(topologyId)).setNode(nodes).build();
 107     }
 108
 109     private static Node createPcepNode(final String nodeId) {
 110         return new NodeBuilder().setNodeId(new NodeId(nodeId))
 111                 .addAugmentation(PcepTopologyNodeStatsAug.class,
 112                         new PcepTopologyNodeStatsAugBuilder().setPcepSessionState(createTopologySessionState()).build())
 113                 .build();
 114     }
 115
 116     private static PcepSessionState createTopologySessionState() {
 117         final ReplyTime replyTime = new ReplyTimeBuilder()
 118                 .setAverageTime(Uint32.ONE)
 119                 .setMaxTime(Uint32.valueOf(3))
 120                 .setMinTime(Uint32.TWO)
 121                 .build();
 122
 123         final ErrorMessages errorMsg = new ErrorMessagesBuilder()
 124                 .setReceivedErrorMsgCount(Uint32.ONE)
 125                 .setSentErrorMsgCount(Uint32.valueOf(2))
 126                 .build();
 127
 128         final StatefulMessagesStatsAug statefulMsg = new StatefulMessagesStatsAugBuilder()
 129                 .setLastReceivedRptMsgTimestamp(Uint32.valueOf(1553183614L))
 130                 .setSentUpdMsgCount(Uint32.ONE)
 131                 .setReceivedRptMsgCount(Uint32.TWO)
 132                 .setSentInitMsgCount(Uint32.valueOf(3))
 133                 .build();
 134
 135         final Messages messages = new MessagesBuilder()
 136                 .setLastSentMsgTimestamp(Uint32.valueOf(1553183734L))
 137                 .setUnknownMsgReceived(Uint16.ONE)
 138                 .setSentMsgCount(Uint32.valueOf(5))
 139                 .setReceivedMsgCount(Uint32.valueOf(4))
 140                 .setReplyTime(replyTime)
 141                 .setErrorMessages(errorMsg)
 142                 .addAugmentation(StatefulMessagesStatsAug.class, statefulMsg).build();
 143
 144         final PeerCapabilities capabilities = new PeerCapabilitiesBuilder()
 145                 .addAugmentation(StatefulCapabilitiesStatsAug.class, new StatefulCapabilitiesStatsAugBuilder()
 146                         .setStateful(true).setInstantiation(true).setActive(true).build())
 147                 .build();
 148
 149         final LocalPref localPref = new LocalPrefBuilder()
 150                 .setKeepalive(Uint8.valueOf(30))
 151                 .setDeadtimer(Uint8.valueOf(120))
 152                 .setIpAddress("127.0.0.1")
 153                 .setSessionId(Uint16.ZERO)
 154                 .addAugmentation(PcepEntityIdStatsAug.class, new PcepEntityIdStatsAugBuilder()
 155                     .setSpeakerEntityIdValue(new byte[] {0x01, 0x02, 0x03, 0x04})
 156                     .build())
 157                 .build();
 158
 159         return new PcepSessionStateBuilder().setSynchronized(true).setSessionDuration("0:00:05:18")
 160                 .setDelegatedLspsCount(Uint16.ONE).setLocalPref(localPref)
 161                 .setPeerPref(new PeerPrefBuilder(localPref).build())
 162                 .setPeerCapabilities(capabilities).setMessages(messages).build();
 163     }
 164
 165     private static PcepSessionState createRpcSessionState() {
 166         final ReplyTime replyTime = new ReplyTimeBuilder()
 167                 .setAverageTime(Uint32.ONE)
 168                 .setMaxTime(Uint32.valueOf(3))
 169                 .setMinTime(Uint32.TWO)
 170                 .build();
 171
 172         final ErrorMessages errorMsg = new ErrorMessagesBuilder()
 173                 .setReceivedErrorMsgCount(Uint32.ONE).setSentErrorMsgCount(Uint32.TWO).build();
 174
 175         final StatefulMessagesRpcAug statefulMsg = new StatefulMessagesRpcAugBuilder()
 176                 .setLastReceivedRptMsgTimestamp(Uint32.valueOf(1553183614L))
 177                 .setSentUpdMsgCount(Uint32.ONE)
 178                 .setReceivedRptMsgCount(Uint32.TWO)
 179                 .setSentInitMsgCount(Uint32.valueOf(3))
 180                 .build();
 181
 182         final Messages messages = new MessagesBuilder()
 183                 .setLastSentMsgTimestamp(Uint32.valueOf(1553183734L))
 184                 .setUnknownMsgReceived(Uint16.ONE)
 185                 .setSentMsgCount(Uint32.valueOf(5))
 186                 .setReceivedMsgCount(Uint32.valueOf(4))
 187                 .setReplyTime(replyTime)
 188                 .setErrorMessages(errorMsg)
 189                 .addAugmentation(StatefulMessagesRpcAug.class, statefulMsg).build();
 190
 191         final PeerCapabilities capabilities = new PeerCapabilitiesBuilder()
 192                 .addAugmentation(StatefulCapabilitiesRpcAug.class, new StatefulCapabilitiesRpcAugBuilder()
 193                         .setStateful(true).setInstantiation(true).setActive(true).build())
 194                 .build();
 195
 196         final LocalPref localPref = new LocalPrefBuilder()
 197                 .setKeepalive(Uint8.valueOf(30))
 198                 .setDeadtimer(Uint8.valueOf(120))
 199                 .setIpAddress("127.0.0.1")
 200                 .setSessionId(Uint16.ZERO)
 201                 .addAugmentation(PcepEntityIdRpcAug.class, new PcepEntityIdRpcAugBuilder()
 202                     .setSpeakerEntityIdValue(new byte[] {0x01, 0x02, 0x03, 0x04})
 203                     .build())
 204                 .build();
 205
 206         return new PcepSessionStateBuilder().setSynchronized(true).setSessionDuration("0:00:05:18")
 207                 .setDelegatedLspsCount(Uint16.ONE).setLocalPref(localPref)
 208                 .setPeerPref(new PeerPrefBuilder(localPref).build())
 209                 .setPeerCapabilities(capabilities).setMessages(messages)
 210                 .build();
 211     }
 212
 213     @Test
 214     public void testGetStatsNoMatch() throws Exception {
 215         GetStatsInput in;
 216         GetStatsOutput out;
 217
 218         // Non-existing topology
 219         in = createGetStatsInput(NONEXISTENT_TOPOLOGY, null);
 220         out = createGetStatsOutput(NONEXISTENT_TOPOLOGY, Collections.emptyList(), null);
 221         performTest(in, out);
 222
 223         // Non-existent node
 224         in = createGetStatsInput(TOPOLOGY_ID1, Collections.singletonList(NONEXISTENT_NODE));
 225         out = createGetStatsOutput(TOPOLOGY_ID1, Collections.singletonList(NONEXISTENT_NODE), null);
 226         performTest(in, out);
 227
 228         // Non-PCEP topology
 229         in = createGetStatsInput(NONPCEP_TOPOLOGY, Collections.singletonList(NONPCEP_NODE));
 230         out = createGetStatsOutput(NONPCEP_TOPOLOGY, Collections.singletonList(NONPCEP_NODE), null);
 231         performTest(in, out);
 232     }
 233
 234     @Test
 235     public void testGetStatsPartialMatch() throws Exception {
 236         GetStatsInput in;
 237         GetStatsOutput out;
 238
 239         // Match one PCEP topology
 240         in = createGetStatsInput(TOPOLOGY_ID1, null);
 241         out = createGetStatsOutput(TOPOLOGY_ID1, Collections.singletonList(NODE_ID1), createRpcSessionState());
 242         performTest(in, out);
 243
 244         // Match one PCEP node in one topology
 245         in = createGetStatsInput(TOPOLOGY_ID2, Collections.singletonList(NODE_ID3));
 246         out = createGetStatsOutput(TOPOLOGY_ID2, Collections.singletonList(NODE_ID3), createRpcSessionState());
 247         performTest(in, out);
 248
 249         // Match two PCEP nodes in one topology
 250         in = createGetStatsInput(TOPOLOGY_ID2, Arrays.asList(NODE_ID2, NODE_ID3));
 251         out = createGetStatsOutput(TOPOLOGY_ID2, Arrays.asList(NODE_ID2, NODE_ID3), createRpcSessionState());
 252         performCountTest(in, out);
 253     }
 254
 255     @Test
 256     @SuppressWarnings("checkstyle:LineLength")
 257     public void testGetStatsAllMatch() throws Exception {
 258         GetStatsInput in;
 259
 260         final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.topology.stats.rpc.rev190321.get.stats.output.Topology ot1 =
 261                 createGetStatsOutput(TOPOLOGY_ID1, Collections.singletonList(NODE_ID1), createRpcSessionState())
 262                         .getTopology().get(0);
 263         final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.topology.stats.rpc.rev190321.get.stats.output.Topology ot2 =
 264                 createGetStatsOutput(TOPOLOGY_ID2, Arrays.asList(NODE_ID2, NODE_ID3), createRpcSessionState())
 265                         .getTopology().get(0);
 266         final GetStatsOutput out = new GetStatsOutputBuilder().setTopology(Arrays.asList(ot1, ot2)).build();
 267
 268         // Implicitly match all PCEP topologies and nodes
 269         in = createGetStatsInput(null, null);
 270         performCountTest(in, out);
 271
 272         // Explicitly match all PCEP topologies and nodes
 273         final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.topology.stats.rpc.rev190321.get.stats.input.Topology it1 =
 274                 createGetStatsInput(TOPOLOGY_ID1, Collections.singletonList(NODE_ID1)).getTopology().get(0);
 275         final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.topology.stats.rpc.rev190321.get.stats.input.Topology it2 =
 276                 createGetStatsInput(TOPOLOGY_ID2, Arrays.asList(NODE_ID2, NODE_ID3)).getTopology().get(0);
 277         in = new GetStatsInputBuilder().setTopology(Arrays.asList(it1, it2)).build();
 278         performCountTest(in, out);
 279     }
 280
 281     private void performTest(final GetStatsInput in, final GetStatsOutput out) throws Exception {
 282         final RpcResult<GetStatsOutput> result = rpcService.getStats(in).get();
 283         assertEquals(result.getResult(), out);
 284         assertTrue(result.isSuccessful());
 285         assertTrue(result.getErrors().isEmpty());
 286     }
 287
 288     /*
 289      * When topology and/or node list is expected to contain more than one item,
 290      * direct comparison will fail due to potential list ordering differences. So
 291      * just compare the number of nodes
 292      */
 293     private void performCountTest(final GetStatsInput in, final GetStatsOutput out) throws Exception {
 294         final RpcResult<GetStatsOutput> result = rpcService.getStats(in).get();
 295         assertEquals(result.getResult().getTopology().size(), out.getTopology().size());
 296         assertTrue(result.isSuccessful());
 297         assertEquals(result.getResult().getTopology().stream().flatMap(t -> t.getNode().stream()).count(),
 298                 out.getTopology().stream().flatMap(t -> t.getNode().stream()).count());
 299         assertTrue(result.isSuccessful());
 300         assertTrue(result.getErrors().isEmpty());
 301     }
 302
 303     @SuppressWarnings("checkstyle:LineLength")
 304     private static GetStatsInput createGetStatsInput(final String topologyId, final List<String> nodeIds) {
 305         final List<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.topology.stats.rpc.rev190321.get.stats.input.topology.Node> nodes;
 306         if (nodeIds != null) {
 307             nodes = nodeIds.stream().map(
 308                 nodeId -> new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.topology.stats.rpc.rev190321.get.stats.input.topology.NodeBuilder()
 309                         .setNodeId(new NodeId(nodeId)).build())
 310                 .collect(Collectors.toList());
 311         } else {
 312             nodes = null;
 313         }
 314         final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.topology.stats.rpc.rev190321.get.stats.input.Topology topology;
 315         if (topologyId != null) {
 316             topology =
 317                     new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.topology.stats.rpc.rev190321.get.stats.input.TopologyBuilder()
 318                             .setTopologyId(new TopologyId(topologyId)).setNode(nodes).build();
 319         } else {
 320             topology = null;
 321         }
 322         return new GetStatsInputBuilder().setTopology(topology != null ? Collections.singletonList(topology) : null)
 323                 .build();
 324     }
 325
 326     @SuppressWarnings("checkstyle:LineLength")
 327     private static GetStatsOutput createGetStatsOutput(final String topologyId, final List<String> nodeIds,
 328             final PcepSessionState state) {
 329         final List<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.topology.stats.rpc.rev190321.get.stats.output.topology.Node> nodes;
 330         if (nodeIds != null) {
 331             nodes = nodeIds.stream().map(
 332                 nodeId -> new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.topology.stats.rpc.rev190321.get.stats.output.topology.NodeBuilder()
 333                         .setNodeId(new NodeId(nodeId)).setPcepSessionState(state).build())
 334                 .collect(Collectors.toList());
 335         } else {
 336             nodes = null;
 337         }
 338         final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.topology.stats.rpc.rev190321.get.stats.output.Topology topology;
 339         if (topologyId != null) {
 340             topology =
 341                     new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.topology.stats.rpc.rev190321.get.stats.output.TopologyBuilder()
 342                             .setTopologyId(new TopologyId(topologyId)).setNode(nodes).build();
 343         } else {
 344             topology = null;
 345         }
 346         return new GetStatsOutputBuilder().setTopology(topology != null ? Collections.singletonList(topology) : null)
 347                 .build();
 348     }
 349
 350     @After
 351     public void tearDown() {
 352         rpcService.close();
 353     }
 354 }