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