import akka.event.LoggingAdapter;
import akka.japi.Creator;
import akka.serialization.Serialization;
+import com.google.common.base.Optional;
import com.google.common.util.concurrent.ListenableFuture;
import com.google.common.util.concurrent.ListeningExecutorService;
import com.google.common.util.concurrent.MoreExecutors;
import org.opendaylight.controller.cluster.datastore.messages.CreateTransactionChain;
import org.opendaylight.controller.cluster.datastore.messages.CreateTransactionChainReply;
import org.opendaylight.controller.cluster.datastore.messages.CreateTransactionReply;
+import org.opendaylight.controller.cluster.datastore.messages.EnableNotification;
import org.opendaylight.controller.cluster.datastore.messages.ForwardedCommitTransaction;
import org.opendaylight.controller.cluster.datastore.messages.PeerAddressResolved;
import org.opendaylight.controller.cluster.datastore.messages.RegisterChangeListener;
import org.opendaylight.controller.cluster.datastore.messages.UpdateSchemaContext;
import org.opendaylight.controller.cluster.datastore.modification.Modification;
import org.opendaylight.controller.cluster.datastore.modification.MutableCompositeModification;
+import org.opendaylight.controller.cluster.raft.ConfigParams;
+import org.opendaylight.controller.cluster.raft.DefaultConfigParamsImpl;
import org.opendaylight.controller.cluster.raft.RaftActor;
import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeListener;
import org.opendaylight.controller.md.sal.dom.store.impl.InMemoryDOMDataStore;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
import org.opendaylight.yangtools.yang.model.api.SchemaContext;
+import scala.concurrent.duration.FiniteDuration;
+import java.util.ArrayList;
import java.util.HashMap;
+import java.util.List;
import java.util.Map;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Executors;
+import java.util.concurrent.TimeUnit;
/**
* A Shard represents a portion of the logical data tree <br/>
*/
public class Shard extends RaftActor {
+ private static final ConfigParams configParams = new ShardConfigParams();
+
public static final String DEFAULT_NAME = "default";
private final ListeningExecutorService storeExecutor =
private final String name;
- private SchemaContext schemaContext;
+ private volatile SchemaContext schemaContext;
private final ShardStats shardMBean;
+ private final List<ActorSelection> dataChangeListeners = new ArrayList<>();
+
private Shard(String name, Map<String, String> peerAddresses) {
- super(name, peerAddresses);
+ super(name, peerAddresses, Optional.of(configParams));
this.name = name;
} else if(getLeader() != null){
getLeader().forward(message, getContext());
}
- } else if (message.getClass().equals(RegisterChangeListener.SERIALIZABLE_CLASS)) {
- registerChangeListener(RegisterChangeListener.fromSerializable(getContext().system(), message));
+ } else if (message instanceof RegisterChangeListener) {
+ registerChangeListener((RegisterChangeListener) message);
} else if (message instanceof UpdateSchemaContext) {
updateSchemaContext((UpdateSchemaContext) message);
} else if (message instanceof ForwardedCommitTransaction) {
}
}
+ private ActorRef createTypedTransactionActor(CreateTransaction createTransaction,String transactionId){
+ if(createTransaction.getTransactionType()== TransactionProxy.TransactionType.READ_ONLY.ordinal()){
+ return getContext().actorOf(
+ ShardTransaction.props( store.newReadOnlyTransaction(), getSelf(), schemaContext), transactionId);
+
+ }else if (createTransaction.getTransactionType()== TransactionProxy.TransactionType.READ_WRITE.ordinal()){
+ return getContext().actorOf(
+ ShardTransaction.props( store.newReadWriteTransaction(), getSelf(), schemaContext), transactionId);
+
+
+ }else if (createTransaction.getTransactionType()== TransactionProxy.TransactionType.WRITE_ONLY.ordinal()){
+ return getContext().actorOf(
+ ShardTransaction.props( store.newWriteOnlyTransaction(), getSelf(), schemaContext), transactionId);
+ }else{
+ throw new IllegalArgumentException ("CreateTransaction message has unidentified transaction type="+createTransaction.getTransactionType()) ;
+ }
+ }
+
private void createTransaction(CreateTransaction createTransaction) {
- DOMStoreReadWriteTransaction transaction =
- store.newReadWriteTransaction();
+
String transactionId = "shard-" + createTransaction.getTransactionId();
LOG.info("Creating transaction : {} " , transactionId);
- ActorRef transactionActor = getContext().actorOf(
- ShardTransaction.props(transaction, getSelf(), schemaContext), transactionId);
+ ActorRef transactionActor = createTypedTransactionActor(createTransaction,transactionId);
getSender()
.tell(new CreateTransactionReply(Serialization.serializedActorPath(transactionActor), createTransaction.getTransactionId()).toSerializable(),
modificationToCohort.remove(serialized);
if (cohort == null) {
LOG.error(
- "Could not find cohort for modification : " + modification);
+ "Could not find cohort for modification : {}", modification);
LOG.info("Writing modification using a new transaction");
- modification.apply(store.newReadWriteTransaction());
- return;
+ DOMStoreReadWriteTransaction transaction =
+ store.newReadWriteTransaction();
+ modification.apply(transaction);
+ DOMStoreThreePhaseCommitCohort commitCohort = transaction.ready();
+ ListenableFuture<Void> future =
+ commitCohort.preCommit();
+ try {
+ future.get();
+ future = commitCohort.commit();
+ future.get();
+ } catch (InterruptedException e) {
+ LOG.error("Failed to commit", e);
+ } catch (ExecutionException e) {
+ LOG.error("Failed to commit", e);
+ }
}
final ListenableFuture<Void> future = cohort.commit();
.system().actorSelection(
registerChangeListener.getDataChangeListenerPath());
+
+ // Notify the listener if notifications should be enabled or not
+ // If this shard is the leader then it will enable notifications else
+ // it will not
+ dataChangeListenerPath.tell(new EnableNotification(isLeader()), getSelf());
+
+ // Now store a reference to the data change listener so it can be notified
+ // at a later point if notifications should be enabled or disabled
+ dataChangeListeners.add(dataChangeListenerPath);
+
AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>
listener = new DataChangeListenerProxy(schemaContext,dataChangeListenerPath);
LOG.debug("registerDataChangeListener sending reply, listenerRegistrationPath = " + listenerRegistration.path().toString());
getSender()
- .tell(new RegisterChangeListenerReply(listenerRegistration.path()).toSerializable(),
+ .tell(new RegisterChangeListenerReply(listenerRegistration.path()),
getSelf());
}
if(data instanceof CompositeModificationPayload){
Object modification =
((CompositeModificationPayload) data).getModification();
- commit(clientActor, modification);
+
+ if(modification != null){
+ commit(clientActor, modification);
+ } else {
+ LOG.error("modification is null - this is very unexpected");
+ }
+
+
} else {
LOG.error("Unknown state received {}", data);
}
throw new UnsupportedOperationException("applySnapshot");
}
+ @Override protected void onStateChanged() {
+ for(ActorSelection dataChangeListener : dataChangeListeners){
+ dataChangeListener.tell(new EnableNotification(isLeader()), getSelf());
+ }
+ }
+
@Override public String persistenceId() {
return this.name;
}
+
+
+ private static class ShardConfigParams extends DefaultConfigParamsImpl {
+ public static final FiniteDuration HEART_BEAT_INTERVAL =
+ new FiniteDuration(500, TimeUnit.MILLISECONDS);
+
+ @Override public FiniteDuration getHeartBeatInterval() {
+ return HEART_BEAT_INTERVAL;
+ }
+ }
}
Code Review / controller.git / blobdiff