2 * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
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
9 package org.opendaylight.controller.cluster.raft;
11 import static com.google.common.base.Preconditions.checkState;
12 import akka.actor.ActorRef;
13 import akka.actor.ActorSelection;
14 import akka.actor.ActorSystem;
15 import akka.actor.Props;
16 import akka.actor.UntypedActorContext;
17 import com.google.common.annotations.VisibleForTesting;
18 import com.google.common.base.Supplier;
20 import org.opendaylight.controller.cluster.DataPersistenceProvider;
21 import org.opendaylight.controller.cluster.raft.policy.DefaultRaftPolicy;
22 import org.opendaylight.controller.cluster.raft.policy.RaftPolicy;
23 import org.slf4j.Logger;
25 public class RaftActorContextImpl implements RaftActorContext {
27 private final ActorRef actor;
29 private final UntypedActorContext context;
31 private final String id;
33 private final ElectionTerm termInformation;
35 private long commitIndex;
37 private long lastApplied;
39 private ReplicatedLog replicatedLog;
41 private final Map<String, String> peerAddresses;
43 private final Logger LOG;
45 private ConfigParams configParams;
48 private Supplier<Long> totalMemoryRetriever;
50 // Snapshot manager will need to be created on demand as it needs raft actor context which cannot
51 // be passed to it in the constructor
52 private SnapshotManager snapshotManager;
54 private final DataPersistenceProvider persistenceProvider;
56 private short payloadVersion;
58 public RaftActorContextImpl(ActorRef actor, UntypedActorContext context, String id,
59 ElectionTerm termInformation, long commitIndex, long lastApplied, Map<String, String> peerAddresses,
60 ConfigParams configParams, DataPersistenceProvider persistenceProvider, Logger logger) {
62 this.context = context;
64 this.termInformation = termInformation;
65 this.commitIndex = commitIndex;
66 this.lastApplied = lastApplied;
67 this.peerAddresses = peerAddresses;
68 this.configParams = configParams;
69 this.persistenceProvider = persistenceProvider;
73 void setPayloadVersion(short payloadVersion) {
74 this.payloadVersion = payloadVersion;
78 public short getPayloadVersion() {
79 return payloadVersion;
82 void setConfigParams(ConfigParams configParams) {
83 this.configParams = configParams;
87 public ActorRef actorOf(Props props){
88 return context.actorOf(props);
92 public ActorSelection actorSelection(String path){
93 return context.actorSelection(path);
97 public String getId() {
102 public ActorRef getActor() {
107 public ElectionTerm getTermInformation() {
108 return termInformation;
112 public long getCommitIndex() {
116 @Override public void setCommitIndex(long commitIndex) {
117 this.commitIndex = commitIndex;
121 public long getLastApplied() {
125 @Override public void setLastApplied(long lastApplied) {
126 this.lastApplied = lastApplied;
129 @Override public void setReplicatedLog(ReplicatedLog replicatedLog) {
130 this.replicatedLog = replicatedLog;
133 @Override public ReplicatedLog getReplicatedLog() {
134 return replicatedLog;
137 @Override public ActorSystem getActorSystem() {
138 return context.system();
141 @Override public Logger getLogger() {
145 @Override public Map<String, String> getPeerAddresses() {
146 return peerAddresses;
149 @Override public String getPeerAddress(String peerId) {
150 return peerAddresses.get(peerId);
153 @Override public ConfigParams getConfigParams() {
157 @Override public void addToPeers(String name, String address) {
158 peerAddresses.put(name, address);
161 @Override public void removePeer(String name) {
162 peerAddresses.remove(name);
165 @Override public ActorSelection getPeerActorSelection(String peerId) {
166 String peerAddress = getPeerAddress(peerId);
167 if(peerAddress != null){
168 return actorSelection(peerAddress);
173 @Override public void setPeerAddress(String peerId, String peerAddress) {
174 LOG.info("Peer address for peer {} set to {}", peerId, peerAddress);
175 checkState(peerAddresses.containsKey(peerId), peerId + " is unknown");
177 peerAddresses.put(peerId, peerAddress);
181 public SnapshotManager getSnapshotManager() {
182 if(snapshotManager == null){
183 snapshotManager = new SnapshotManager(this, LOG);
185 return snapshotManager;
189 public long getTotalMemory() {
190 return totalMemoryRetriever != null ? totalMemoryRetriever.get() : Runtime.getRuntime().totalMemory();
194 public void setTotalMemoryRetriever(Supplier<Long> retriever) {
195 totalMemoryRetriever = retriever;
199 public boolean hasFollowers() {
200 return getPeerAddresses().keySet().size() > 0;
204 public DataPersistenceProvider getPersistenceProvider() {
205 return persistenceProvider;
210 public RaftPolicy getRaftPolicy() {
211 return DefaultRaftPolicy.INSTANCE;