* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
-
package org.opendaylight.controller.cluster.raft;
+import static java.util.Objects.requireNonNull;
+
import akka.actor.ActorContext;
import akka.actor.ActorRef;
import akka.actor.ActorSelection;
import akka.actor.ActorSystem;
import akka.actor.Props;
+import akka.cluster.Cluster;
import com.google.common.annotations.VisibleForTesting;
-import com.google.common.base.Supplier;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
+import java.util.Optional;
import java.util.Set;
+import java.util.concurrent.Executor;
+import java.util.function.Consumer;
+import java.util.function.LongSupplier;
+import org.eclipse.jdt.annotation.NonNull;
import org.opendaylight.controller.cluster.DataPersistenceProvider;
-import org.opendaylight.controller.cluster.raft.ServerConfigurationPayload.ServerInfo;
+import org.opendaylight.controller.cluster.io.FileBackedOutputStreamFactory;
+import org.opendaylight.controller.cluster.raft.base.messages.ApplyState;
+import org.opendaylight.controller.cluster.raft.behaviors.RaftActorBehavior;
+import org.opendaylight.controller.cluster.raft.persisted.ServerConfigurationPayload;
+import org.opendaylight.controller.cluster.raft.persisted.ServerInfo;
import org.opendaylight.controller.cluster.raft.policy.RaftPolicy;
import org.slf4j.Logger;
+/**
+ * Implementation of the RaftActorContext interface.
+ *
+ * @author Moiz Raja
+ * @author Thomas Pantelis
+ */
public class RaftActorContextImpl implements RaftActorContext {
+ private static final LongSupplier JVM_MEMORY_RETRIEVER = () -> Runtime.getRuntime().maxMemory();
private final ActorRef actor;
private final ActorContext context;
+ private final @NonNull Executor executor;
+
private final String id;
private final ElectionTerm termInformation;
private final Map<String, PeerInfo> peerInfoMap = new HashMap<>();
- private final Logger LOG;
+ private final Logger log;
private ConfigParams configParams;
private boolean dynamicServerConfiguration = false;
@VisibleForTesting
- private Supplier<Long> totalMemoryRetriever;
+ private LongSupplier totalMemoryRetriever = JVM_MEMORY_RETRIEVER;
// Snapshot manager will need to be created on demand as it needs raft actor context which cannot
// be passed to it in the constructor
private boolean votingMember = true;
- public RaftActorContextImpl(ActorRef actor, ActorContext context, String id,
- ElectionTerm termInformation, long commitIndex, long lastApplied, Map<String, String> peerAddresses,
- ConfigParams configParams, DataPersistenceProvider persistenceProvider, Logger logger) {
+ private RaftActorBehavior currentBehavior;
+
+ private int numVotingPeers = -1;
+
+ private Optional<Cluster> cluster;
+
+ private final Consumer<ApplyState> applyStateConsumer;
+
+ private final FileBackedOutputStreamFactory fileBackedOutputStreamFactory;
+
+ private RaftActorLeadershipTransferCohort leadershipTransferCohort;
+
+ public RaftActorContextImpl(final ActorRef actor, final ActorContext context, final String id,
+ final @NonNull ElectionTerm termInformation, final long commitIndex, final long lastApplied,
+ final @NonNull Map<String, String> peerAddresses,
+ final @NonNull ConfigParams configParams, final @NonNull DataPersistenceProvider persistenceProvider,
+ final @NonNull Consumer<ApplyState> applyStateConsumer, final @NonNull Logger logger,
+ final @NonNull Executor executor) {
this.actor = actor;
this.context = context;
this.id = id;
- this.termInformation = termInformation;
+ this.termInformation = requireNonNull(termInformation);
+ this.executor = requireNonNull(executor);
this.commitIndex = commitIndex;
this.lastApplied = lastApplied;
- this.configParams = configParams;
- this.persistenceProvider = persistenceProvider;
- this.LOG = logger;
+ this.configParams = requireNonNull(configParams);
+ this.persistenceProvider = requireNonNull(persistenceProvider);
+ this.log = requireNonNull(logger);
+ this.applyStateConsumer = requireNonNull(applyStateConsumer);
+
+ fileBackedOutputStreamFactory = new FileBackedOutputStreamFactory(
+ configParams.getFileBackedStreamingThreshold(), configParams.getTempFileDirectory());
- for(Map.Entry<String, String> e: peerAddresses.entrySet()) {
+ for (Map.Entry<String, String> e : requireNonNull(peerAddresses).entrySet()) {
peerInfoMap.put(e.getKey(), new PeerInfo(e.getKey(), e.getValue(), VotingState.VOTING));
}
}
- public void setPayloadVersion(short payloadVersion) {
+ @VisibleForTesting
+ public void setPayloadVersion(final short payloadVersion) {
this.payloadVersion = payloadVersion;
}
return payloadVersion;
}
- public void setConfigParams(ConfigParams configParams) {
+ public void setConfigParams(final ConfigParams configParams) {
this.configParams = configParams;
}
@Override
- public ActorRef actorOf(Props props){
+ public ActorRef actorOf(final Props props) {
return context.actorOf(props);
}
@Override
- public ActorSelection actorSelection(String path){
+ public ActorSelection actorSelection(final String path) {
return context.actorSelection(path);
}
return actor;
}
+ @Override
+ public final Executor getExecutor() {
+ return executor;
+ }
+
+ @Override
+ @SuppressWarnings("checkstyle:IllegalCatch")
+ public Optional<Cluster> getCluster() {
+ if (cluster == null) {
+ try {
+ cluster = Optional.of(Cluster.get(getActorSystem()));
+ } catch (Exception e) {
+ // An exception means there's no cluster configured. This will only happen in unit tests.
+ log.debug("{}: Could not obtain Cluster", getId(), e);
+ cluster = Optional.empty();
+ }
+ }
+
+ return cluster;
+ }
+
@Override
public ElectionTerm getTermInformation() {
return termInformation;
return commitIndex;
}
- @Override public void setCommitIndex(long commitIndex) {
+ @Override public void setCommitIndex(final long commitIndex) {
this.commitIndex = commitIndex;
}
}
@Override
- public void setLastApplied(long lastApplied) {
+ public void setLastApplied(final long lastApplied) {
+ final Throwable stackTrace = log.isTraceEnabled() ? new Throwable() : null;
+ log.debug("{}: Moving last applied index from {} to {}", id, this.lastApplied, lastApplied, stackTrace);
this.lastApplied = lastApplied;
}
@Override
- public void setReplicatedLog(ReplicatedLog replicatedLog) {
+ public void setReplicatedLog(final ReplicatedLog replicatedLog) {
this.replicatedLog = replicatedLog;
}
return replicatedLog;
}
- @Override public ActorSystem getActorSystem() {
+ @Override
+ public ActorSystem getActorSystem() {
return context.system();
}
- @Override public Logger getLogger() {
- return this.LOG;
+ @Override
+ public Logger getLogger() {
+ return this.log;
}
@Override
}
@Override
- public PeerInfo getPeerInfo(String peerId) {
+ public PeerInfo getPeerInfo(final String peerId) {
return peerInfoMap.get(peerId);
}
@Override
- public String getPeerAddress(String peerId) {
- String peerAddress = null;
+ public String getPeerAddress(final String peerId) {
+ String peerAddress;
PeerInfo peerInfo = peerInfoMap.get(peerId);
- if(peerInfo != null) {
+ if (peerInfo != null) {
peerAddress = peerInfo.getAddress();
- if(peerAddress == null) {
+ if (peerAddress == null) {
peerAddress = configParams.getPeerAddressResolver().resolve(peerId);
peerInfo.setAddress(peerAddress);
}
}
@Override
- public void updatePeerIds(ServerConfigurationPayload serverConfig){
+ public void updatePeerIds(final ServerConfigurationPayload serverConfig) {
votingMember = true;
boolean foundSelf = false;
Set<String> currentPeers = new HashSet<>(this.getPeerIds());
- for(ServerInfo server: serverConfig.getServerConfig()) {
- if(getId().equals(server.getId())) {
+ for (ServerInfo server : serverConfig.getServerConfig()) {
+ if (getId().equals(server.getId())) {
foundSelf = true;
- if(!server.isVoting()) {
+ if (!server.isVoting()) {
votingMember = false;
}
} else {
- VotingState votingState = server.isVoting() ? VotingState.VOTING: VotingState.NON_VOTING;
- if(!currentPeers.contains(server.getId())) {
+ VotingState votingState = server.isVoting() ? VotingState.VOTING : VotingState.NON_VOTING;
+ if (!currentPeers.contains(server.getId())) {
this.addToPeers(server.getId(), null, votingState);
} else {
this.getPeerInfo(server.getId()).setVotingState(votingState);
}
}
- for(String peerIdToRemove: currentPeers) {
+ for (String peerIdToRemove : currentPeers) {
this.removePeer(peerIdToRemove);
}
- if(!foundSelf) {
+ if (!foundSelf) {
votingMember = false;
}
+ log.debug("{}: Updated server config: isVoting: {}, peers: {}", id, votingMember, peerInfoMap.values());
+
setDynamicServerConfigurationInUse();
}
}
@Override
- public void addToPeers(String id, String address, VotingState votingState) {
- peerInfoMap.put(id, new PeerInfo(id, address, votingState));
+ public void addToPeers(final String peerId, final String address, final VotingState votingState) {
+ peerInfoMap.put(peerId, new PeerInfo(peerId, address, votingState));
+ numVotingPeers = -1;
}
@Override
- public void removePeer(String name) {
- if(getId().equals(name)) {
+ public void removePeer(final String name) {
+ if (getId().equals(name)) {
votingMember = false;
} else {
peerInfoMap.remove(name);
+ numVotingPeers = -1;
}
}
- @Override public ActorSelection getPeerActorSelection(String peerId) {
+ @Override public ActorSelection getPeerActorSelection(final String peerId) {
String peerAddress = getPeerAddress(peerId);
- if(peerAddress != null){
+ if (peerAddress != null) {
return actorSelection(peerAddress);
}
return null;
}
@Override
- public void setPeerAddress(String peerId, String peerAddress) {
+ public void setPeerAddress(final String peerId, final String peerAddress) {
PeerInfo peerInfo = peerInfoMap.get(peerId);
- if(peerInfo != null) {
- LOG.info("Peer address for peer {} set to {}", peerId, peerAddress);
+ if (peerInfo != null) {
+ log.info("Peer address for peer {} set to {}", peerId, peerAddress);
peerInfo.setAddress(peerAddress);
}
}
@Override
public SnapshotManager getSnapshotManager() {
- if(snapshotManager == null){
- snapshotManager = new SnapshotManager(this, LOG);
+ if (snapshotManager == null) {
+ snapshotManager = new SnapshotManager(this, log);
}
return snapshotManager;
}
@Override
public long getTotalMemory() {
- return totalMemoryRetriever != null ? totalMemoryRetriever.get() : Runtime.getRuntime().totalMemory();
+ return totalMemoryRetriever.getAsLong();
}
@Override
- public void setTotalMemoryRetriever(Supplier<Long> retriever) {
- totalMemoryRetriever = retriever;
+ public void setTotalMemoryRetriever(final LongSupplier retriever) {
+ totalMemoryRetriever = retriever == null ? JVM_MEMORY_RETRIEVER : retriever;
}
@Override
public boolean hasFollowers() {
- return getPeerIds().size() > 0;
+ return !getPeerIds().isEmpty();
}
@Override
}
@Override
- public ServerConfigurationPayload getPeerServerInfo(boolean includeSelf) {
+ public ServerConfigurationPayload getPeerServerInfo(final boolean includeSelf) {
if (!isDynamicServerConfigurationInUse()) {
return null;
}
Collection<PeerInfo> peers = getPeers();
List<ServerInfo> newConfig = new ArrayList<>(peers.size() + 1);
- for(PeerInfo peer: peers) {
+ for (PeerInfo peer: peers) {
newConfig.add(new ServerInfo(peer.getId(), peer.isVoting()));
}
- if(includeSelf) {
+ if (includeSelf) {
newConfig.add(new ServerInfo(getId(), votingMember));
}
- return (new ServerConfigurationPayload(newConfig));
+ return new ServerConfigurationPayload(newConfig);
}
@Override
public boolean isVotingMember() {
return votingMember;
}
+
+ @Override
+ public boolean anyVotingPeers() {
+ if (numVotingPeers < 0) {
+ numVotingPeers = 0;
+ for (PeerInfo info: getPeers()) {
+ if (info.isVoting()) {
+ numVotingPeers++;
+ }
+ }
+ }
+
+ return numVotingPeers > 0;
+ }
+
+ @Override
+ public RaftActorBehavior getCurrentBehavior() {
+ return currentBehavior;
+ }
+
+ void setCurrentBehavior(final RaftActorBehavior behavior) {
+ this.currentBehavior = requireNonNull(behavior);
+ }
+
+ @Override
+ public Consumer<ApplyState> getApplyStateConsumer() {
+ return applyStateConsumer;
+ }
+
+ @Override
+ public FileBackedOutputStreamFactory getFileBackedOutputStreamFactory() {
+ return fileBackedOutputStreamFactory;
+ }
+
+ @SuppressWarnings("checkstyle:IllegalCatch")
+ void close() {
+ if (currentBehavior != null) {
+ try {
+ currentBehavior.close();
+ } catch (Exception e) {
+ log.debug("{}: Error closing behavior {}", getId(), currentBehavior.state(), e);
+ }
+ }
+ }
+
+ @Override
+ public RaftActorLeadershipTransferCohort getRaftActorLeadershipTransferCohort() {
+ return leadershipTransferCohort;
+ }
+
+ @Override
+ @SuppressWarnings("checkstyle:hiddenField")
+ public void setRaftActorLeadershipTransferCohort(final RaftActorLeadershipTransferCohort leadershipTransferCohort) {
+ this.leadershipTransferCohort = leadershipTransferCohort;
+ }
}
Code Review / controller.git / blobdiff