opendaylight/md-sal/sal-akka-raft/src/test/java/org/opendaylight/controller/cluster/raft/MockRaftActor.java

   1 /*
   2  * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
   3  * Copyright (c) 2015 Brocade Communications Systems, Inc. and others.  All rights reserved.
   4  *
   5  * This program and the accompanying materials are made available under the
   6  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   7  * and is available at http://www.eclipse.org/legal/epl-v10.html
   8  */
   9 package org.opendaylight.controller.cluster.raft;
  10
  11 import static org.junit.Assert.assertEquals;
  12 import static org.mockito.Mockito.mock;
  13 import akka.actor.ActorRef;
  14 import akka.actor.Props;
  15 import akka.japi.Creator;
  16 import com.google.common.base.Optional;
  17 import com.google.common.util.concurrent.Uninterruptibles;
  18 import java.io.ByteArrayInputStream;
  19 import java.io.IOException;
  20 import java.io.ObjectInputStream;
  21 import java.util.ArrayList;
  22 import java.util.List;
  23 import java.util.Map;
  24 import java.util.concurrent.CountDownLatch;
  25 import java.util.concurrent.TimeUnit;
  26 import javax.annotation.Nonnull;
  27 import org.opendaylight.controller.cluster.DataPersistenceProvider;
  28 import org.opendaylight.controller.cluster.raft.protobuff.client.messages.Payload;
  29
  30 public class MockRaftActor extends RaftActor implements RaftActorRecoveryCohort, RaftActorSnapshotCohort {
  31
  32     final RaftActor actorDelegate;
  33     final RaftActorRecoveryCohort recoveryCohortDelegate;
  34     final RaftActorSnapshotCohort snapshotCohortDelegate;
  35     private final CountDownLatch recoveryComplete = new CountDownLatch(1);
  36     private final List<Object> state;
  37     private ActorRef roleChangeNotifier;
  38     private final CountDownLatch initializeBehaviorComplete = new CountDownLatch(1);
  39     private RaftActorRecoverySupport raftActorRecoverySupport;
  40     private RaftActorSnapshotMessageSupport snapshotMessageSupport;
  41
  42     public static final class MockRaftActorCreator implements Creator<MockRaftActor> {
  43         private static final long serialVersionUID = 1L;
  44         private final Map<String, String> peerAddresses;
  45         private final String id;
  46         private final Optional<ConfigParams> config;
  47         private final DataPersistenceProvider dataPersistenceProvider;
  48         private final ActorRef roleChangeNotifier;
  49         private RaftActorSnapshotMessageSupport snapshotMessageSupport;
  50
  51         private MockRaftActorCreator(Map<String, String> peerAddresses, String id,
  52             Optional<ConfigParams> config, DataPersistenceProvider dataPersistenceProvider,
  53             ActorRef roleChangeNotifier) {
  54             this.peerAddresses = peerAddresses;
  55             this.id = id;
  56             this.config = config;
  57             this.dataPersistenceProvider = dataPersistenceProvider;
  58             this.roleChangeNotifier = roleChangeNotifier;
  59         }
  60
  61         @Override
  62         public MockRaftActor create() throws Exception {
  63             MockRaftActor mockRaftActor = new MockRaftActor(id, peerAddresses, config,
  64                 dataPersistenceProvider);
  65             mockRaftActor.roleChangeNotifier = this.roleChangeNotifier;
  66             mockRaftActor.snapshotMessageSupport = snapshotMessageSupport;
  67             return mockRaftActor;
  68         }
  69     }
  70
  71     public MockRaftActor(String id, Map<String, String> peerAddresses, Optional<ConfigParams> config,
  72                          DataPersistenceProvider dataPersistenceProvider) {
  73         super(id, peerAddresses, config);
  74         state = new ArrayList<>();
  75         this.actorDelegate = mock(RaftActor.class);
  76         this.recoveryCohortDelegate = mock(RaftActorRecoveryCohort.class);
  77         this.snapshotCohortDelegate = mock(RaftActorSnapshotCohort.class);
  78         if(dataPersistenceProvider == null){
  79             setPersistence(true);
  80         } else {
  81             setPersistence(dataPersistenceProvider);
  82         }
  83     }
  84
  85     public void setRaftActorRecoverySupport(RaftActorRecoverySupport support) {
  86         raftActorRecoverySupport = support;
  87     }
  88
  89     @Override
  90     public RaftActorRecoverySupport newRaftActorRecoverySupport() {
  91         return raftActorRecoverySupport != null ? raftActorRecoverySupport : super.newRaftActorRecoverySupport();
  92     }
  93
  94     @Override
  95     protected RaftActorSnapshotMessageSupport newRaftActorSnapshotMessageSupport() {
  96         return snapshotMessageSupport != null ? snapshotMessageSupport : super.newRaftActorSnapshotMessageSupport();
  97     }
  98
  99     public void waitForRecoveryComplete() {
 100         try {
 101             assertEquals("Recovery complete", true, recoveryComplete.await(5,  TimeUnit.SECONDS));
 102         } catch (InterruptedException e) {
 103             e.printStackTrace();
 104         }
 105     }
 106
 107     public void waitForInitializeBehaviorComplete() {
 108         try {
 109             assertEquals("Behavior initialized", true, initializeBehaviorComplete.await(5,  TimeUnit.SECONDS));
 110         } catch (InterruptedException e) {
 111             e.printStackTrace();
 112         }
 113     }
 114
 115
 116     public void waitUntilLeader(){
 117         for(int i = 0;i < 10; i++){
 118             if(isLeader()){
 119                 break;
 120             }
 121             Uninterruptibles.sleepUninterruptibly(100, TimeUnit.MILLISECONDS);
 122         }
 123     }
 124
 125     public List<Object> getState() {
 126         return state;
 127     }
 128
 129     public static Props props(final String id, final Map<String, String> peerAddresses,
 130             Optional<ConfigParams> config){
 131         return Props.create(new MockRaftActorCreator(peerAddresses, id, config, null, null));
 132     }
 133
 134     public static Props props(final String id, final Map<String, String> peerAddresses,
 135             Optional<ConfigParams> config, RaftActorSnapshotMessageSupport snapshotMessageSupport){
 136         MockRaftActorCreator creator = new MockRaftActorCreator(peerAddresses, id, config, null, null);
 137         creator.snapshotMessageSupport = snapshotMessageSupport;
 138         return Props.create(creator);
 139     }
 140
 141     public static Props props(final String id, final Map<String, String> peerAddresses,
 142                               Optional<ConfigParams> config, DataPersistenceProvider dataPersistenceProvider){
 143         return Props.create(new MockRaftActorCreator(peerAddresses, id, config, dataPersistenceProvider, null));
 144     }
 145
 146     public static Props props(final String id, final Map<String, String> peerAddresses,
 147         Optional<ConfigParams> config, ActorRef roleChangeNotifier){
 148         return Props.create(new MockRaftActorCreator(peerAddresses, id, config, null, roleChangeNotifier));
 149     }
 150
 151     public static Props props(final String id, final Map<String, String> peerAddresses,
 152                               Optional<ConfigParams> config, ActorRef roleChangeNotifier,
 153                               DataPersistenceProvider dataPersistenceProvider){
 154         return Props.create(new MockRaftActorCreator(peerAddresses, id, config, dataPersistenceProvider, roleChangeNotifier));
 155     }
 156
 157
 158     @Override protected void applyState(ActorRef clientActor, String identifier, Object data) {
 159         actorDelegate.applyState(clientActor, identifier, data);
 160         LOG.info("{}: applyState called", persistenceId());
 161     }
 162
 163     @Override
 164     @Nonnull
 165     protected RaftActorRecoveryCohort getRaftActorRecoveryCohort() {
 166         return this;
 167     }
 168
 169     @Override
 170     protected RaftActorSnapshotCohort getRaftActorSnapshotCohort() {
 171         return this;
 172     }
 173
 174     @Override
 175     public void startLogRecoveryBatch(int maxBatchSize) {
 176     }
 177
 178     @Override
 179     public void appendRecoveredLogEntry(Payload data) {
 180         state.add(data);
 181     }
 182
 183     @Override
 184     public void applyCurrentLogRecoveryBatch() {
 185     }
 186
 187     @Override
 188     protected void onRecoveryComplete() {
 189         actorDelegate.onRecoveryComplete();
 190         recoveryComplete.countDown();
 191     }
 192
 193     @Override
 194     protected void initializeBehavior() {
 195         super.initializeBehavior();
 196         initializeBehaviorComplete.countDown();
 197     }
 198
 199     @Override
 200     public void applyRecoverySnapshot(byte[] bytes) {
 201         recoveryCohortDelegate.applyRecoverySnapshot(bytes);
 202         try {
 203             Object data = toObject(bytes);
 204             if (data instanceof List) {
 205                 state.addAll((List<?>) data);
 206             }
 207         } catch (Exception e) {
 208             e.printStackTrace();
 209         }
 210     }
 211
 212     @Override
 213     public void createSnapshot(ActorRef actorRef) {
 214         LOG.info("{}: createSnapshot called", persistenceId());
 215         snapshotCohortDelegate.createSnapshot(actorRef);
 216     }
 217
 218     @Override
 219     public void applySnapshot(byte [] snapshot) {
 220         LOG.info("{}: applySnapshot called", persistenceId());
 221         snapshotCohortDelegate.applySnapshot(snapshot);
 222     }
 223
 224     @Override
 225     protected void onStateChanged() {
 226         actorDelegate.onStateChanged();
 227     }
 228
 229     @Override
 230     protected Optional<ActorRef> getRoleChangeNotifier() {
 231         return Optional.fromNullable(roleChangeNotifier);
 232     }
 233
 234     @Override public String persistenceId() {
 235         return this.getId();
 236     }
 237
 238     private Object toObject(byte[] bs) throws ClassNotFoundException, IOException {
 239         Object obj = null;
 240         ByteArrayInputStream bis = null;
 241         ObjectInputStream ois = null;
 242         try {
 243             bis = new ByteArrayInputStream(bs);
 244             ois = new ObjectInputStream(bis);
 245             obj = ois.readObject();
 246         } finally {
 247             if (bis != null) {
 248                 bis.close();
 249             }
 250             if (ois != null) {
 251                 ois.close();
 252             }
 253         }
 254         return obj;
 255     }
 256
 257     public ReplicatedLog getReplicatedLog(){
 258         return this.getRaftActorContext().getReplicatedLog();
 259     }
 260 }