import akka.actor.ActorRef;
import akka.actor.Props;
-import akka.japi.Creator;
-
import com.google.common.base.Optional;
import com.google.protobuf.ByteString;
-
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.util.HashMap;
+import java.util.Map;
+import org.opendaylight.controller.cluster.DataPersistenceProvider;
import org.opendaylight.controller.cluster.example.messages.KeyValue;
import org.opendaylight.controller.cluster.example.messages.KeyValueSaved;
import org.opendaylight.controller.cluster.example.messages.PrintRole;
import org.opendaylight.controller.cluster.example.messages.PrintState;
+import org.opendaylight.controller.cluster.notifications.RoleChangeNotifier;
import org.opendaylight.controller.cluster.raft.ConfigParams;
import org.opendaylight.controller.cluster.raft.RaftActor;
+import org.opendaylight.controller.cluster.raft.RaftState;
import org.opendaylight.controller.cluster.raft.base.messages.CaptureSnapshotReply;
+import org.opendaylight.controller.cluster.raft.behaviors.Leader;
import org.opendaylight.controller.cluster.raft.protobuff.client.messages.Payload;
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.io.ObjectInputStream;
-import java.io.ObjectOutputStream;
-import java.util.HashMap;
-import java.util.Map;
-
/**
* A sample actor showing how the RaftActor is to be extended
*/
public class ExampleActor extends RaftActor {
private final Map<String, String> state = new HashMap();
+ private final DataPersistenceProvider dataPersistenceProvider;
private long persistIdentifier = 1;
+ private final Optional<ActorRef> roleChangeNotifier;
public ExampleActor(String id, Map<String, String> peerAddresses,
Optional<ConfigParams> configParams) {
super(id, peerAddresses, configParams);
+ this.dataPersistenceProvider = new PersistentDataProvider();
+ roleChangeNotifier = createRoleChangeNotifier(id);
}
public static Props props(final String id, final Map<String, String> peerAddresses,
- final Optional<ConfigParams> configParams){
- return Props.create(new Creator<ExampleActor>(){
-
- @Override public ExampleActor create() throws Exception {
- return new ExampleActor(id, peerAddresses, configParams);
- }
- });
+ final Optional<ConfigParams> configParams) {
+ return Props.create(ExampleActor.class, id, peerAddresses, configParams);
}
- @Override public void onReceiveCommand(Object message){
+ @Override public void onReceiveCommand(Object message) throws Exception{
if(message instanceof KeyValue){
if(isLeader()) {
String persistId = Long.toString(persistIdentifier++);
} else if (message instanceof PrintRole) {
if(LOG.isDebugEnabled()) {
- LOG.debug("{} = {}, Peers={}", getId(), getRaftState(), getPeers());
+ if (getRaftState() == RaftState.Leader || getRaftState() == RaftState.IsolatedLeader) {
+ final String followers = ((Leader)this.getCurrentBehavior()).printFollowerStates();
+ LOG.debug("{} = {}, Peers={}, followers={}", getId(), getRaftState(),
+ getRaftActorContext().getPeerAddresses().keySet(), followers);
+ } else {
+ LOG.debug("{} = {}, Peers={}", getId(), getRaftState(),
+ getRaftActorContext().getPeerAddresses().keySet());
+ }
+
+
}
} else {
}
}
- @Override protected void applyState(ActorRef clientActor, String identifier,
- Object data) {
+ protected String getReplicatedLogState() {
+ return "snapshotIndex=" + getRaftActorContext().getReplicatedLog().getSnapshotIndex()
+ + ", snapshotTerm=" + getRaftActorContext().getReplicatedLog().getSnapshotTerm()
+ + ", im-mem journal size=" + getRaftActorContext().getReplicatedLog().size();
+ }
+
+ public Optional<ActorRef> createRoleChangeNotifier(String actorId) {
+ ActorRef exampleRoleChangeNotifier = this.getContext().actorOf(
+ RoleChangeNotifier.getProps(actorId), actorId + "-notifier");
+ return Optional.<ActorRef>of(exampleRoleChangeNotifier);
+ }
+
+ @Override
+ protected Optional<ActorRef> getRoleChangeNotifier() {
+ return roleChangeNotifier;
+ }
+
+ @Override protected void applyState(final ActorRef clientActor, final String identifier,
+ final Object data) {
if(data instanceof KeyValue){
KeyValue kv = (KeyValue) data;
state.put(kv.getKey(), kv.getValue());
try {
bs = fromObject(state);
} catch (Exception e) {
- LOG.error("Exception in creating snapshot", e);
+ LOG.error(e, "Exception in creating snapshot");
}
- getSelf().tell(new CaptureSnapshotReply(bs), null);
+ getSelf().tell(new CaptureSnapshotReply(bs.toByteArray()), null);
}
- @Override protected void applySnapshot(ByteString snapshot) {
+ @Override protected void applySnapshot(byte [] snapshot) {
state.clear();
try {
state.putAll((HashMap) toObject(snapshot));
} catch (Exception e) {
- LOG.error("Exception in applying snapshot", e);
+ LOG.error(e, "Exception in applying snapshot");
}
if(LOG.isDebugEnabled()) {
- LOG.debug("Snapshot applied to state :" + ((HashMap) state).size());
+ LOG.debug("Snapshot applied to state : {}", ((HashMap) state).size());
}
}
}
}
- private Object toObject(ByteString bs) throws ClassNotFoundException, IOException {
+ private Object toObject(byte [] bs) throws ClassNotFoundException, IOException {
Object obj = null;
ByteArrayInputStream bis = null;
ObjectInputStream ois = null;
try {
- bis = new ByteArrayInputStream(bs.toByteArray());
+ bis = new ByteArrayInputStream(bs);
ois = new ObjectInputStream(bis);
obj = ois.readObject();
} finally {
}
- @Override public void onReceiveRecover(Object message) {
+ @Override
+ protected DataPersistenceProvider persistence() {
+ return dataPersistenceProvider;
+ }
+
+ @Override public void onReceiveRecover(Object message)throws Exception {
super.onReceiveRecover(message);
}
}
@Override
- protected void applyRecoverySnapshot(ByteString snapshot) {
+ protected void applyRecoverySnapshot(byte[] snapshot) {
}
}