opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/MemberNode.java

   1 /*
   2  * Copyright (c) 2015 Brocade Communications 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.controller.cluster.datastore;
   9
  10 import static org.junit.Assert.assertEquals;
  11 import static org.junit.Assert.fail;
  12 import akka.actor.ActorRef;
  13 import akka.actor.ActorSystem;
  14 import akka.actor.Address;
  15 import akka.actor.AddressFromURIString;
  16 import akka.cluster.Cluster;
  17 import akka.cluster.ClusterEvent.CurrentClusterState;
  18 import akka.cluster.Member;
  19 import akka.cluster.MemberStatus;
  20 import com.google.common.base.Optional;
  21 import com.google.common.base.Preconditions;
  22 import com.google.common.base.Stopwatch;
  23 import com.google.common.collect.Sets;
  24 import com.google.common.util.concurrent.Uninterruptibles;
  25 import com.typesafe.config.ConfigFactory;
  26 import java.util.List;
  27 import java.util.Set;
  28 import java.util.concurrent.TimeUnit;
  29 import org.opendaylight.controller.cluster.access.concepts.MemberName;
  30 import org.opendaylight.controller.cluster.datastore.identifiers.ShardIdentifier;
  31 import org.opendaylight.controller.cluster.datastore.utils.ActorContext;
  32 import org.opendaylight.controller.cluster.raft.client.messages.GetOnDemandRaftState;
  33 import org.opendaylight.controller.cluster.raft.client.messages.OnDemandRaftState;
  34 import org.opendaylight.controller.md.cluster.datastore.model.SchemaContextHelper;
  35 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  36 import scala.concurrent.Await;
  37 import scala.concurrent.Future;
  38 import scala.concurrent.duration.Duration;
  39
  40 /**
  41  * Class that represents a cluster member node for unit tests. It encapsulates an actor system with
  42  * config and (optional) operational data store instances. The Builder is used to specify the setup
  43  * parameters and create the data store instances. The actor system is automatically joined to address
  44  * 127.0.0.1:2558 so one member must specify an akka cluster configuration with that address.
  45  *
  46  * @author Thomas Pantelis
  47  */
  48 public class MemberNode {
  49     static final Address MEMBER_1_ADDRESS = AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558");
  50
  51     private IntegrationTestKit kit;
  52     private DistributedDataStore configDataStore;
  53     private DistributedDataStore operDataStore;
  54     private DatastoreContext.Builder datastoreContextBuilder;
  55     private boolean cleanedUp;
  56
  57     /**
  58      * Constructs a Builder.
  59      *
  60      * @param members the list to which the resulting MemberNode will be added. This makes it easier for
  61      *                callers to cleanup instances on test completion.
  62      * @return a Builder instance
  63      */
  64     public static Builder builder(List<MemberNode> members) {
  65         return new Builder(members);
  66     }
  67
  68     public IntegrationTestKit kit() {
  69         return kit;
  70     }
  71
  72
  73     public DistributedDataStore configDataStore() {
  74         return configDataStore;
  75     }
  76
  77
  78     public DistributedDataStore operDataStore() {
  79         return operDataStore;
  80     }
  81
  82     public DatastoreContext.Builder datastoreContextBuilder() {
  83         return datastoreContextBuilder;
  84     }
  85
  86     public void waitForMembersUp(String... otherMembers) {
  87         kit.waitForMembersUp(otherMembers);
  88     }
  89
  90     public void waitForMemberDown(String member) {
  91         Stopwatch sw = Stopwatch.createStarted();
  92         while(sw.elapsed(TimeUnit.SECONDS) <= 10) {
  93             CurrentClusterState state = Cluster.get(kit.getSystem()).state();
  94             for(Member m: state.getUnreachable()) {
  95                 if(member.equals(m.getRoles().iterator().next())) {
  96                     return;
  97                 }
  98             }
  99
 100             for(Member m: state.getMembers()) {
 101                 if(m.status() != MemberStatus.up() && member.equals(m.getRoles().iterator().next())) {
 102                     return;
 103                 }
 104             }
 105
 106             Uninterruptibles.sleepUninterruptibly(100, TimeUnit.MILLISECONDS);
 107         }
 108
 109         fail("Member " + member + " is now down");
 110     }
 111
 112     public void cleanup() {
 113         if(!cleanedUp) {
 114             cleanedUp = true;
 115             kit.cleanup(configDataStore);
 116             kit.cleanup(operDataStore);
 117             IntegrationTestKit.shutdownActorSystem(kit.getSystem(), Boolean.TRUE);
 118         }
 119     }
 120
 121     public static void verifyRaftState(DistributedDataStore datastore, String shardName, RaftStateVerifier verifier)
 122             throws Exception {
 123         ActorContext actorContext = datastore.getActorContext();
 124
 125         Future<ActorRef> future = actorContext.findLocalShardAsync(shardName);
 126         ActorRef shardActor = Await.result(future, Duration.create(10, TimeUnit.SECONDS));
 127
 128         AssertionError lastError = null;
 129         Stopwatch sw = Stopwatch.createStarted();
 130         while(sw.elapsed(TimeUnit.SECONDS) <= 5) {
 131             OnDemandRaftState raftState = (OnDemandRaftState)actorContext.
 132                     executeOperation(shardActor, GetOnDemandRaftState.INSTANCE);
 133
 134             try {
 135                 verifier.verify(raftState);
 136                 return;
 137             } catch (AssertionError e) {
 138                 lastError = e;
 139                 Uninterruptibles.sleepUninterruptibly(50, TimeUnit.MILLISECONDS);
 140             }
 141         }
 142
 143         throw lastError;
 144     }
 145
 146     public static void verifyRaftPeersPresent(DistributedDataStore datastore, final String shardName,
 147             String... peerMemberNames) throws Exception {
 148         final Set<String> peerIds = Sets.newHashSet();
 149         for(String p: peerMemberNames) {
 150             peerIds.add(ShardIdentifier.create(shardName, MemberName.forName(p),
 151                 datastore.getActorContext().getDataStoreName()).toString());
 152         }
 153
 154         verifyRaftState(datastore, shardName, raftState -> assertEquals("Peers for shard " + shardName, peerIds,
 155             raftState.getPeerAddresses().keySet()));
 156     }
 157
 158     public static void verifyNoShardPresent(DistributedDataStore datastore, String shardName) {
 159         Stopwatch sw = Stopwatch.createStarted();
 160         while(sw.elapsed(TimeUnit.SECONDS) <= 5) {
 161             Optional<ActorRef> shardReply = datastore.getActorContext().findLocalShard(shardName);
 162             if(!shardReply.isPresent()) {
 163                 return;
 164             }
 165
 166             Uninterruptibles.sleepUninterruptibly(50, TimeUnit.MILLISECONDS);
 167         }
 168
 169         fail("Shard " + shardName + " is present");
 170     }
 171
 172     public static class Builder {
 173         private final List<MemberNode> members;
 174         private String moduleShardsConfig;
 175         private String akkaConfig;
 176         private String[] waitForshardLeader = new String[0];
 177         private String testName;
 178         private SchemaContext schemaContext;
 179         private boolean createOperDatastore = true;
 180         private DatastoreContext.Builder datastoreContextBuilder = DatastoreContext.newBuilder().
 181                 shardHeartbeatIntervalInMillis(300).shardElectionTimeoutFactor(30);
 182
 183         Builder(List<MemberNode> members) {
 184             this.members = members;
 185         }
 186
 187         /**
 188          * Specifies the name of the module shards config file. This is required.
 189          *
 190          * @return this Builder
 191          */
 192         public Builder moduleShardsConfig(String moduleShardsConfig) {
 193             this.moduleShardsConfig = moduleShardsConfig;
 194             return this;
 195         }
 196
 197         /**
 198          * Specifies the name of the akka configuration. This is required.
 199          *
 200          * @return this Builder
 201          */
 202         public Builder akkaConfig(String akkaConfig) {
 203             this.akkaConfig = akkaConfig;
 204             return this;
 205         }
 206
 207         /**
 208          * Specifies the name of the test that is appended to the data store names. This is required.
 209          *
 210          * @return this Builder
 211          */
 212         public Builder testName(String testName) {
 213             this.testName = testName;
 214             return this;
 215         }
 216
 217         /**
 218          * Specifies the optional names of the shards to initially wait for a leader to be elected.
 219          *
 220          * @return this Builder
 221          */
 222         public Builder waitForShardLeader(String... shardNames) {
 223             this.waitForshardLeader = shardNames;
 224             return this;
 225         }
 226
 227         /**
 228          * Specifies whether or not to create an operational data store. Defaults to true.
 229          *
 230          * @return this Builder
 231          */
 232         public Builder createOperDatastore(boolean value) {
 233             this.createOperDatastore = value;
 234             return this;
 235         }
 236
 237         /**
 238          * Specifies the SchemaContext for the data stores. Defaults to SchemaContextHelper.full().
 239          *
 240          * @return this Builder
 241          */
 242         public Builder schemaContext(SchemaContext schemaContext) {
 243             this.schemaContext = schemaContext;
 244             return this;
 245         }
 246
 247         /**
 248          * Specifies the DatastoreContext Builder. If not specified, a default instance is used.
 249          *
 250          * @return this Builder
 251          */
 252         public Builder datastoreContextBuilder(DatastoreContext.Builder builder) {
 253             datastoreContextBuilder = builder;
 254             return this;
 255         }
 256
 257         public MemberNode build() {
 258             Preconditions.checkNotNull(moduleShardsConfig, "moduleShardsConfig must be specified");
 259             Preconditions.checkNotNull(akkaConfig, "akkaConfig must be specified");
 260             Preconditions.checkNotNull(testName, "testName must be specified");
 261
 262             if(schemaContext == null) {
 263                 schemaContext = SchemaContextHelper.full();
 264             }
 265
 266             MemberNode node = new MemberNode();
 267             node.datastoreContextBuilder = datastoreContextBuilder;
 268
 269             ActorSystem system = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig(akkaConfig));
 270             Cluster.get(system).join(MEMBER_1_ADDRESS);
 271
 272             node.kit = new IntegrationTestKit(system, datastoreContextBuilder);
 273
 274             String memberName = new ClusterWrapperImpl(system).getCurrentMemberName().getName();
 275             node.kit.getDatastoreContextBuilder().shardManagerPersistenceId("shard-manager-config-" + memberName);
 276             node.configDataStore = node.kit.setupDistributedDataStore("config_" + testName, moduleShardsConfig,
 277                     true, schemaContext, waitForshardLeader);
 278
 279             if(createOperDatastore) {
 280                 node.kit.getDatastoreContextBuilder().shardManagerPersistenceId("shard-manager-oper-" + memberName);
 281                 node.operDataStore = node.kit.setupDistributedDataStore("oper_" + testName, moduleShardsConfig,
 282                         true, schemaContext, waitForshardLeader);
 283             }
 284
 285             members.add(node);
 286             return node;
 287         }
 288     }
 289
 290     public static interface RaftStateVerifier {
 291         void verify(OnDemandRaftState raftState);
 292     }
 293 }