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