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.RaftPolicy;
22 import org.slf4j.Logger;
24 public class RaftActorContextImpl implements RaftActorContext {
26 private final ActorRef actor;
28 private final UntypedActorContext context;
30 private final String id;
32 private final ElectionTerm termInformation;
34 private long commitIndex;
36 private long lastApplied;
38 private ReplicatedLog replicatedLog;
40 private final Map<String, String> peerAddresses;
42 private final Logger LOG;
44 private ConfigParams configParams;
47 private Supplier<Long> totalMemoryRetriever;
49 // Snapshot manager will need to be created on demand as it needs raft actor context which cannot
50 // be passed to it in the constructor
51 private SnapshotManager snapshotManager;
53 private final DataPersistenceProvider persistenceProvider;
55 private short payloadVersion;
57 public RaftActorContextImpl(ActorRef actor, UntypedActorContext context, String id,
58 ElectionTerm termInformation, long commitIndex, long lastApplied, Map<String, String> peerAddresses,
59 ConfigParams configParams, DataPersistenceProvider persistenceProvider, Logger logger) {
61 this.context = context;
63 this.termInformation = termInformation;
64 this.commitIndex = commitIndex;
65 this.lastApplied = lastApplied;
66 this.peerAddresses = peerAddresses;
67 this.configParams = configParams;
68 this.persistenceProvider = persistenceProvider;
72 void setPayloadVersion(short payloadVersion) {
73 this.payloadVersion = payloadVersion;
77 public short getPayloadVersion() {
78 return payloadVersion;
81 void setConfigParams(ConfigParams configParams) {
82 this.configParams = configParams;
86 public ActorRef actorOf(Props props){
87 return context.actorOf(props);
91 public ActorSelection actorSelection(String path){
92 return context.actorSelection(path);
96 public String getId() {
101 public ActorRef getActor() {
106 public ElectionTerm getTermInformation() {
107 return termInformation;
111 public long getCommitIndex() {
115 @Override public void setCommitIndex(long commitIndex) {
116 this.commitIndex = commitIndex;
120 public long getLastApplied() {
124 @Override public void setLastApplied(long lastApplied) {
125 this.lastApplied = lastApplied;
128 @Override public void setReplicatedLog(ReplicatedLog replicatedLog) {
129 this.replicatedLog = replicatedLog;
132 @Override public ReplicatedLog getReplicatedLog() {
133 return replicatedLog;
136 @Override public ActorSystem getActorSystem() {
137 return context.system();
140 @Override public Logger getLogger() {
144 @Override public Map<String, String> getPeerAddresses() {
145 return peerAddresses;
148 @Override public String getPeerAddress(String peerId) {
149 String peerAddress = peerAddresses.get(peerId);
150 if(peerAddress == null) {
151 peerAddress = configParams.getPeerAddressResolver().resolve(peerId);
152 peerAddresses.put(peerId, peerAddress);
158 @Override public ConfigParams getConfigParams() {
162 @Override public void addToPeers(String name, String address) {
163 peerAddresses.put(name, address);
166 @Override public void removePeer(String name) {
167 peerAddresses.remove(name);
170 @Override public ActorSelection getPeerActorSelection(String peerId) {
171 String peerAddress = getPeerAddress(peerId);
172 if(peerAddress != null){
173 return actorSelection(peerAddress);
178 @Override public void setPeerAddress(String peerId, String peerAddress) {
179 LOG.info("Peer address for peer {} set to {}", peerId, peerAddress);
180 checkState(peerAddresses.containsKey(peerId), peerId + " is unknown");
182 peerAddresses.put(peerId, peerAddress);
186 public SnapshotManager getSnapshotManager() {
187 if(snapshotManager == null){
188 snapshotManager = new SnapshotManager(this, LOG);
190 return snapshotManager;
194 public long getTotalMemory() {
195 return totalMemoryRetriever != null ? totalMemoryRetriever.get() : Runtime.getRuntime().totalMemory();
199 public void setTotalMemoryRetriever(Supplier<Long> retriever) {
200 totalMemoryRetriever = retriever;
204 public boolean hasFollowers() {
205 return getPeerAddresses().keySet().size() > 0;
209 public DataPersistenceProvider getPersistenceProvider() {
210 return persistenceProvider;
215 public RaftPolicy getRaftPolicy() {
216 return configParams.getRaftPolicy();