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

   1 /*
   2  * Copyright (c) 2014 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
   9 package org.opendaylight.controller.cluster.raft;
  10
  11 import akka.actor.ActorRef;
  12 import akka.actor.ActorSelection;
  13 import akka.actor.ActorSystem;
  14 import akka.actor.Props;
  15 import akka.event.Logging;
  16 import akka.event.LoggingAdapter;
  17 import com.google.common.base.Preconditions;
  18 import com.google.protobuf.GeneratedMessage;
  19 import java.io.Serializable;
  20 import java.util.HashMap;
  21 import java.util.Map;
  22 import org.opendaylight.controller.cluster.raft.protobuff.client.messages.Payload;
  23 import org.opendaylight.controller.protobuff.messages.cluster.raft.AppendEntriesMessages;
  24 import org.opendaylight.controller.protobuff.messages.cluster.raft.test.MockPayloadMessages;
  25
  26 public class MockRaftActorContext implements RaftActorContext {
  27
  28     private String id;
  29     private ActorSystem system;
  30     private ActorRef actor;
  31     private long index = 0;
  32     private long lastApplied = 0;
  33     private final ElectionTerm electionTerm;
  34     private ReplicatedLog replicatedLog;
  35     private Map<String, String> peerAddresses = new HashMap<>();
  36     private ConfigParams configParams;
  37
  38     public MockRaftActorContext(){
  39         electionTerm = null;
  40
  41         initReplicatedLog();
  42     }
  43
  44     public MockRaftActorContext(String id, ActorSystem system, ActorRef actor){
  45         this.id = id;
  46         this.system = system;
  47         this.actor = actor;
  48
  49         final String id1 = id;
  50         electionTerm = new ElectionTerm() {
  51             /**
  52              * Identifier of the actor whose election term information this is
  53              */
  54             private final String id = id1;
  55             private long currentTerm = 0;
  56             private String votedFor = "";
  57
  58             @Override
  59             public long getCurrentTerm() {
  60                 return currentTerm;
  61             }
  62
  63             @Override
  64             public String getVotedFor() {
  65                 return votedFor;
  66             }
  67
  68             @Override
  69             public void update(long currentTerm, String votedFor){
  70                 this.currentTerm = currentTerm;
  71                 this.votedFor = votedFor;
  72
  73                 // TODO : Write to some persistent state
  74             }
  75
  76             @Override public void updateAndPersist(long currentTerm,
  77                 String votedFor) {
  78                 update(currentTerm, votedFor);
  79             }
  80         };
  81
  82         configParams = new DefaultConfigParamsImpl();
  83
  84         initReplicatedLog();
  85     }
  86
  87
  88     public void initReplicatedLog(){
  89         this.replicatedLog = new SimpleReplicatedLog();
  90         this.replicatedLog.append(new MockReplicatedLogEntry(1, 1, new MockPayload("")));
  91     }
  92
  93     @Override public ActorRef actorOf(Props props) {
  94         return system.actorOf(props);
  95     }
  96
  97     @Override public ActorSelection actorSelection(String path) {
  98         return system.actorSelection(path);
  99     }
 100
 101     @Override public String getId() {
 102         return id;
 103     }
 104
 105     @Override public ActorRef getActor() {
 106         return actor;
 107     }
 108
 109     @Override public ElectionTerm getTermInformation() {
 110         return electionTerm;
 111     }
 112
 113     public void setIndex(long index){
 114         this.index = index;
 115     }
 116
 117     @Override public long getCommitIndex() {
 118         return index;
 119     }
 120
 121     @Override public void setCommitIndex(long commitIndex) {
 122         this.index = commitIndex;
 123     }
 124
 125     @Override public void setLastApplied(long lastApplied){
 126         this.lastApplied = lastApplied;
 127     }
 128
 129     @Override public long getLastApplied() {
 130         return lastApplied;
 131     }
 132
 133     @Override
 134     public void setReplicatedLog(ReplicatedLog replicatedLog) {
 135         this.replicatedLog = replicatedLog;
 136     }
 137
 138     @Override public ReplicatedLog getReplicatedLog() {
 139         return replicatedLog;
 140     }
 141
 142     @Override public ActorSystem getActorSystem() {
 143         return this.system;
 144     }
 145
 146     @Override public LoggingAdapter getLogger() {
 147         return Logging.getLogger(system, this);
 148     }
 149
 150     @Override public Map<String, String> getPeerAddresses() {
 151         return peerAddresses;
 152     }
 153
 154     @Override public String getPeerAddress(String peerId) {
 155         return peerAddresses.get(peerId);
 156     }
 157
 158     @Override public void addToPeers(String name, String address) {
 159         peerAddresses.put(name, address);
 160     }
 161
 162     @Override public void removePeer(String name) {
 163         peerAddresses.remove(name);
 164     }
 165
 166     @Override public ActorSelection getPeerActorSelection(String peerId) {
 167         String peerAddress = getPeerAddress(peerId);
 168         if(peerAddress != null){
 169             return actorSelection(peerAddress);
 170         }
 171         return null;
 172     }
 173
 174     @Override public void setPeerAddress(String peerId, String peerAddress) {
 175         Preconditions.checkState(peerAddresses.containsKey(peerId));
 176         peerAddresses.put(peerId, peerAddress);
 177     }
 178
 179     public void setPeerAddresses(Map<String, String> peerAddresses) {
 180         this.peerAddresses = peerAddresses;
 181     }
 182
 183     @Override
 184     public ConfigParams getConfigParams() {
 185         return configParams;
 186     }
 187
 188     public void setConfigParams(ConfigParams configParams) {
 189         this.configParams = configParams;
 190     }
 191
 192     public static class SimpleReplicatedLog extends AbstractReplicatedLogImpl {
 193         @Override public void appendAndPersist(
 194             ReplicatedLogEntry replicatedLogEntry) {
 195             append(replicatedLogEntry);
 196         }
 197
 198         @Override
 199         public int dataSize() {
 200             return -1;
 201         }
 202
 203         @Override public void removeFromAndPersist(long index) {
 204             removeFrom(index);
 205         }
 206     }
 207
 208     public static class MockPayload extends Payload implements Serializable {
 209         private static final long serialVersionUID = 3121380393130864247L;
 210         private String value = "";
 211
 212         public MockPayload(){
 213
 214         }
 215
 216         public MockPayload(String s) {
 217             this.value = s;
 218         }
 219
 220         @Override public  Map<GeneratedMessage.GeneratedExtension, String> encode() {
 221             Map<GeneratedMessage.GeneratedExtension, String> map = new HashMap<GeneratedMessage.GeneratedExtension, String>();
 222             map.put(MockPayloadMessages.value, value);
 223             return map;
 224         }
 225
 226         @Override public Payload decode(
 227             AppendEntriesMessages.AppendEntries.ReplicatedLogEntry.Payload payloadProtoBuff) {
 228             String value = payloadProtoBuff.getExtension(MockPayloadMessages.value);
 229             this.value = value;
 230             return this;
 231         }
 232
 233         @Override
 234         public int size() {
 235             return value.length();
 236         }
 237
 238         @Override public String getClientPayloadClassName() {
 239             return MockPayload.class.getName();
 240         }
 241
 242         @Override
 243         public String toString() {
 244             return value;
 245         }
 246     }
 247
 248     public static class MockReplicatedLogEntry implements ReplicatedLogEntry, Serializable {
 249         private static final long serialVersionUID = 1L;
 250
 251         private final long term;
 252         private final long index;
 253         private final Payload data;
 254
 255         public MockReplicatedLogEntry(long term, long index, Payload data){
 256
 257             this.term = term;
 258             this.index = index;
 259             this.data = data;
 260         }
 261
 262         @Override public Payload getData() {
 263             return data;
 264         }
 265
 266         @Override public long getTerm() {
 267             return term;
 268         }
 269
 270         @Override public long getIndex() {
 271             return index;
 272         }
 273
 274         @Override
 275         public int size() {
 276             return getData().size();
 277         }
 278     }
 279
 280     public static class MockReplicatedLogBuilder {
 281         private final ReplicatedLog mockLog = new SimpleReplicatedLog();
 282
 283         public  MockReplicatedLogBuilder createEntries(int start, int end, int term) {
 284             for (int i=start; i<end; i++) {
 285                 this.mockLog.append(new ReplicatedLogImplEntry(i, term, new MockRaftActorContext.MockPayload("foo" + i)));
 286             }
 287             return this;
 288         }
 289
 290         public  MockReplicatedLogBuilder addEntry(int index, int term, MockPayload payload) {
 291             this.mockLog.append(new ReplicatedLogImplEntry(index, term, payload));
 292             return this;
 293         }
 294
 295         public ReplicatedLog build() {
 296             return this.mockLog;
 297         }
 298     }
 299 }