import akka.actor.ActorRef;
import akka.actor.PoisonPill;
import akka.actor.Props;
-import akka.actor.UntypedActor;
-import akka.event.Logging;
-import akka.event.LoggingAdapter;
+import akka.actor.ReceiveTimeout;
import akka.japi.Creator;
import com.google.common.base.Optional;
-import com.google.common.util.concurrent.ListenableFuture;
+import com.google.common.util.concurrent.CheckedFuture;
+import org.opendaylight.controller.cluster.datastore.exceptions.UnknownMessageException;
+import org.opendaylight.controller.cluster.datastore.jmx.mbeans.shard.ShardMBeanFactory;
import org.opendaylight.controller.cluster.datastore.messages.CloseTransaction;
import org.opendaylight.controller.cluster.datastore.messages.CloseTransactionReply;
+import org.opendaylight.controller.cluster.datastore.messages.DataExists;
+import org.opendaylight.controller.cluster.datastore.messages.DataExistsReply;
import org.opendaylight.controller.cluster.datastore.messages.DeleteData;
import org.opendaylight.controller.cluster.datastore.messages.DeleteDataReply;
import org.opendaylight.controller.cluster.datastore.messages.MergeData;
import org.opendaylight.controller.cluster.datastore.modification.MergeModification;
import org.opendaylight.controller.cluster.datastore.modification.MutableCompositeModification;
import org.opendaylight.controller.cluster.datastore.modification.WriteModification;
+import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
+import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadTransaction;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreThreePhaseCommitCohort;
-import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionChain;
-import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier;
+import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransaction;
+import org.opendaylight.controller.sal.core.spi.data.DOMStoreWriteTransaction;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-
-import java.util.concurrent.ExecutionException;
+import org.opendaylight.yangtools.yang.model.api.SchemaContext;
/**
* The ShardTransaction Actor represents a remote transaction
* <li> {@link org.opendaylight.controller.cluster.datastore.messages.CloseTransaction}
* </p>
*/
-public class ShardTransaction extends UntypedActor {
+public abstract class ShardTransaction extends AbstractUntypedActor {
private final ActorRef shardActor;
+ protected final SchemaContext schemaContext;
+ private final String shardName;
- // FIXME : see below
- // If transactionChain is not null then this transaction is part of a
- // transactionChain. Not really clear as to what that buys us
- private final DOMStoreTransactionChain transactionChain;
-
- private final DOMStoreReadWriteTransaction transaction;
-
- private final MutableCompositeModification modification =
- new MutableCompositeModification();
- private final LoggingAdapter log =
- Logging.getLogger(getContext().system(), this);
-
- public ShardTransaction(DOMStoreReadWriteTransaction transaction,
- ActorRef shardActor) {
- this(null, transaction, shardActor);
- }
+ private final MutableCompositeModification modification = new MutableCompositeModification();
- public ShardTransaction(DOMStoreTransactionChain transactionChain, DOMStoreReadWriteTransaction transaction,
- ActorRef shardActor) {
- this.transactionChain = transactionChain;
- this.transaction = transaction;
+ protected ShardTransaction(ActorRef shardActor, SchemaContext schemaContext,
+ String shardName) {
this.shardActor = shardActor;
+ this.schemaContext = schemaContext;
+ this.shardName = shardName;
}
-
-
- public static Props props(final DOMStoreReadWriteTransaction transaction,
- final ActorRef shardActor) {
- return Props.create(new Creator<ShardTransaction>() {
-
- @Override
- public ShardTransaction create() throws Exception {
- return new ShardTransaction(transaction, shardActor);
- }
- });
- }
-
- public static Props props(final DOMStoreTransactionChain transactionChain, final DOMStoreReadWriteTransaction transaction,
- final ActorRef shardActor) {
- return Props.create(new Creator<ShardTransaction>() {
-
- @Override
- public ShardTransaction create() throws Exception {
- return new ShardTransaction(transactionChain, transaction, shardActor);
- }
- });
+ public static Props props(DOMStoreTransaction transaction, ActorRef shardActor,
+ SchemaContext schemaContext,DatastoreContext datastoreContext, String shardName) {
+ return Props.create(new ShardTransactionCreator(transaction, shardActor, schemaContext,
+ datastoreContext, shardName));
}
+ protected abstract DOMStoreTransaction getDOMStoreTransaction();
@Override
- public void onReceive(Object message) throws Exception {
- log.debug("Received message {}", message);
-
- if (message instanceof ReadData) {
- readData((ReadData) message);
- } else if (message instanceof WriteData) {
- writeData((WriteData) message);
- } else if (message instanceof MergeData) {
- mergeData((MergeData) message);
- } else if (message instanceof DeleteData) {
- deleteData((DeleteData) message);
- } else if (message instanceof ReadyTransaction) {
- readyTransaction((ReadyTransaction) message);
- } else if (message instanceof CloseTransaction) {
- closeTransaction((CloseTransaction) message);
+ public void handleReceive(Object message) throws Exception {
+ if (message.getClass().equals(CloseTransaction.SERIALIZABLE_CLASS)) {
+ closeTransaction(true);
} else if (message instanceof GetCompositedModification) {
// This is here for testing only
getSender().tell(new GetCompositeModificationReply(
- new ImmutableCompositeModification(modification)), getSelf());
+ new ImmutableCompositeModification(modification)), getSelf());
+ } else if (message instanceof ReceiveTimeout) {
+ LOG.debug("Got ReceiveTimeout for inactivity - closing Tx");
+ closeTransaction(false);
+ } else {
+ throw new UnknownMessageException(message);
}
}
- private void readData(ReadData message) {
+ private void closeTransaction(boolean sendReply) {
+ getDOMStoreTransaction().close();
+
+ if(sendReply) {
+ getSender().tell(new CloseTransactionReply().toSerializable(), getSelf());
+ }
+
+ getSelf().tell(PoisonPill.getInstance(), getSelf());
+ }
+
+ protected void readData(DOMStoreReadTransaction transaction,ReadData message) {
final ActorRef sender = getSender();
final ActorRef self = getSelf();
- final InstanceIdentifier path = message.getPath();
- final ListenableFuture<Optional<NormalizedNode<?, ?>>> future =
- transaction.read(path);
+ final YangInstanceIdentifier path = message.getPath();
+ final CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> future =
+ transaction.read(path);
future.addListener(new Runnable() {
@Override
public void run() {
try {
- Optional<NormalizedNode<?, ?>> optional = future.get();
+ Optional<NormalizedNode<?, ?>> optional = future.checkedGet();
if (optional.isPresent()) {
- sender.tell(new ReadDataReply(optional.get()), self);
+ sender.tell(new ReadDataReply(schemaContext,optional.get()).toSerializable(), self);
} else {
- sender.tell(new ReadDataReply(null), self);
+ sender.tell(new ReadDataReply(schemaContext,null).toSerializable(), self);
}
- } catch (InterruptedException | ExecutionException e) {
- log.error(e,
- "An exception happened when reading data from path : "
- + path.toString());
+ } catch (Exception e) {
+ ShardMBeanFactory.getShardStatsMBean(shardName).incrementFailedReadTransactionsCount();
+ sender.tell(new akka.actor.Status.Failure(e), self);
}
}
}, getContext().dispatcher());
}
+ protected void dataExists(DOMStoreReadTransaction transaction, DataExists message) {
+ final YangInstanceIdentifier path = message.getPath();
+
+ try {
+ Boolean exists = transaction.exists(path).checkedGet();
+ getSender().tell(new DataExistsReply(exists).toSerializable(), getSelf());
+ } catch (ReadFailedException e) {
+ getSender().tell(new akka.actor.Status.Failure(e),getSelf());
+ }
+
+ }
- private void writeData(WriteData message) {
+ protected void writeData(DOMStoreWriteTransaction transaction, WriteData message) {
modification.addModification(
- new WriteModification(message.getPath(), message.getData()));
- transaction.write(message.getPath(), message.getData());
- getSender().tell(new WriteDataReply(), getSelf());
+ new WriteModification(message.getPath(), message.getData(),schemaContext));
+ LOG.debug("writeData at path : " + message.getPath().toString());
+
+ try {
+ transaction.write(message.getPath(), message.getData());
+ getSender().tell(new WriteDataReply().toSerializable(), getSelf());
+ }catch(Exception e){
+ getSender().tell(new akka.actor.Status.Failure(e), getSelf());
+ }
}
- private void mergeData(MergeData message) {
+ protected void mergeData(DOMStoreWriteTransaction transaction, MergeData message) {
modification.addModification(
- new MergeModification(message.getPath(), message.getData()));
- transaction.merge(message.getPath(), message.getData());
- getSender().tell(new MergeDataReply(), getSelf());
+ new MergeModification(message.getPath(), message.getData(), schemaContext));
+ LOG.debug("mergeData at path : " + message.getPath().toString());
+ try {
+ transaction.merge(message.getPath(), message.getData());
+ getSender().tell(new MergeDataReply().toSerializable(), getSelf());
+ }catch(Exception e){
+ getSender().tell(new akka.actor.Status.Failure(e), getSelf());
+ }
}
- private void deleteData(DeleteData message) {
+ protected void deleteData(DOMStoreWriteTransaction transaction, DeleteData message) {
+ LOG.debug("deleteData at path : " + message.getPath().toString());
modification.addModification(new DeleteModification(message.getPath()));
- transaction.delete(message.getPath());
- getSender().tell(new DeleteDataReply(), getSelf());
+ try {
+ transaction.delete(message.getPath());
+ getSender().tell(new DeleteDataReply().toSerializable(), getSelf());
+ }catch(Exception e){
+ getSender().tell(new akka.actor.Status.Failure(e), getSelf());
+ }
}
- private void readyTransaction(ReadyTransaction message) {
- DOMStoreThreePhaseCommitCohort cohort = transaction.ready();
+ protected void readyTransaction(DOMStoreWriteTransaction transaction, ReadyTransaction message) {
+ DOMStoreThreePhaseCommitCohort cohort = transaction.ready();
ActorRef cohortActor = getContext().actorOf(
- ThreePhaseCommitCohort.props(cohort, shardActor, modification));
+ ThreePhaseCommitCohort.props(cohort, shardActor, modification, shardName), "cohort");
getSender()
- .tell(new ReadyTransactionReply(cohortActor.path()), getSelf());
+ .tell(new ReadyTransactionReply(cohortActor.path()).toSerializable(), getSelf());
}
- private void closeTransaction(CloseTransaction message) {
- transaction.close();
- getSender().tell(new CloseTransactionReply(), getSelf());
- getSelf().tell(PoisonPill.getInstance(), getSelf());
- }
+ private static class ShardTransactionCreator implements Creator<ShardTransaction> {
+ private static final long serialVersionUID = 1L;
- // These classes are in here for test purposes only
+ final DOMStoreTransaction transaction;
+ final ActorRef shardActor;
+ final SchemaContext schemaContext;
+ final DatastoreContext datastoreContext;
+ final String shardName;
+ ShardTransactionCreator(DOMStoreTransaction transaction, ActorRef shardActor,
+ SchemaContext schemaContext, DatastoreContext datastoreContext, String shardName) {
+ this.transaction = transaction;
+ this.shardActor = shardActor;
+ this.shardName = shardName;
+ this.schemaContext = schemaContext;
+ this.datastoreContext = datastoreContext;
+ }
- static class GetCompositedModification {
+ @Override
+ public ShardTransaction create() throws Exception {
+ ShardTransaction tx;
+ if(transaction instanceof DOMStoreReadWriteTransaction) {
+ tx = new ShardReadWriteTransaction((DOMStoreReadWriteTransaction)transaction,
+ shardActor, schemaContext, shardName);
+ } else if(transaction instanceof DOMStoreReadTransaction) {
+ tx = new ShardReadTransaction((DOMStoreReadTransaction)transaction, shardActor,
+ schemaContext, shardName);
+ } else {
+ tx = new ShardWriteTransaction((DOMStoreWriteTransaction)transaction,
+ shardActor, schemaContext, shardName);
+ }
+
+ tx.getContext().setReceiveTimeout(datastoreContext.getShardTransactionIdleTimeout());
+ return tx;
+ }
+ }
+ // These classes are in here for test purposes only
+
+ static class GetCompositedModification {
}