import akka.actor.ActorRef;
import akka.actor.ActorSystem;
+import akka.dispatch.OnComplete;
+import akka.util.Timeout;
+import com.google.common.base.Optional;
+import com.google.common.base.Preconditions;
+import org.opendaylight.controller.cluster.datastore.identifiers.ShardManagerIdentifier;
import org.opendaylight.controller.cluster.datastore.messages.RegisterChangeListener;
import org.opendaylight.controller.cluster.datastore.messages.RegisterChangeListenerReply;
-import org.opendaylight.controller.cluster.datastore.messages.UpdateSchemaContext;
+import org.opendaylight.controller.cluster.datastore.shardstrategy.ShardStrategyFactory;
import org.opendaylight.controller.cluster.datastore.utils.ActorContext;
import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker;
import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeListener;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionChain;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreWriteTransaction;
import org.opendaylight.yangtools.concepts.ListenerRegistration;
-import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier;
+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 org.opendaylight.yangtools.yang.model.api.SchemaContextListener;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
+import scala.concurrent.Future;
/**
*
*/
-public class DistributedDataStore implements DOMStore, SchemaContextListener {
+public class DistributedDataStore implements DOMStore, SchemaContextListener, AutoCloseable {
- private static final Logger
- LOG = LoggerFactory.getLogger(DistributedDataStore.class);
+ private static final Logger LOG = LoggerFactory.getLogger(DistributedDataStore.class);
+ public static final int REGISTER_DATA_CHANGE_LISTENER_TIMEOUT_FACTOR = 24; // 24 times the usual operation timeout
-
- private final String type;
private final ActorContext actorContext;
- public DistributedDataStore(ActorSystem actorSystem, String type) {
- this(new ActorContext(actorSystem, actorSystem.actorOf(ShardManager.props(type))), type);
- }
+ public DistributedDataStore(ActorSystem actorSystem, String type, ClusterWrapper cluster,
+ Configuration configuration, DatastoreContext datastoreContext) {
+ Preconditions.checkNotNull(actorSystem, "actorSystem should not be null");
+ Preconditions.checkNotNull(type, "type should not be null");
+ Preconditions.checkNotNull(cluster, "cluster should not be null");
+ Preconditions.checkNotNull(configuration, "configuration should not be null");
+ Preconditions.checkNotNull(datastoreContext, "datastoreContext should not be null");
+
+ String shardManagerId = ShardManagerIdentifier.builder().type(type).build().toString();
+
+ LOG.info("Creating ShardManager : {}", shardManagerId);
+
+ actorContext = new ActorContext(actorSystem, actorSystem.actorOf(
+ ShardManager.props(type, cluster, configuration, datastoreContext)
+ .withMailbox(ActorContext.MAILBOX), shardManagerId ), cluster, configuration);
- public DistributedDataStore(ActorContext actorContext, String type) {
- this.type = type;
- this.actorContext = actorContext;
+ actorContext.setOperationTimeout(datastoreContext.getOperationTimeoutInSeconds());
}
+ public DistributedDataStore(ActorContext actorContext) {
+ this.actorContext = Preconditions.checkNotNull(actorContext, "actorContext should not be null");
+ }
+ @SuppressWarnings("unchecked")
@Override
- public <L extends AsyncDataChangeListener<InstanceIdentifier, NormalizedNode<?, ?>>> ListenerRegistration<L> registerChangeListener(
- InstanceIdentifier path, L listener,
+ public <L extends AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>>
+ ListenerRegistration<L> registerChangeListener(
+ final YangInstanceIdentifier path, L listener,
AsyncDataBroker.DataChangeScope scope) {
- ActorRef dataChangeListenerActor = actorContext.getActorSystem().actorOf(DataChangeListener.props());
+ Preconditions.checkNotNull(path, "path should not be null");
+ Preconditions.checkNotNull(listener, "listener should not be null");
- Object result = actorContext.executeShardOperation(Shard.DEFAULT_NAME,
- new RegisterChangeListener(path, dataChangeListenerActor.path(),
- AsyncDataBroker.DataChangeScope.BASE),
- ActorContext.ASK_DURATION);
+ LOG.debug("Registering listener: {} for path: {} scope: {}", listener, path, scope);
- RegisterChangeListenerReply reply = (RegisterChangeListenerReply) result;
- return new ListenerRegistrationProxy(reply.getListenerRegistrationPath());
- }
+ String shardName = ShardStrategyFactory.getStrategy(path).findShard(path);
+
+ Optional<ActorRef> shard = actorContext.findLocalShard(shardName);
+
+ //if shard is NOT local
+ if (!shard.isPresent()) {
+ LOG.debug("No local shard for shardName {} was found so returning a noop registration", shardName);
+ return new NoOpDataChangeListenerRegistration(listener);
+ }
+ //if shard is local
+ ActorRef dataChangeListenerActor = actorContext.getActorSystem().actorOf(DataChangeListener.props(listener));
+ Future future = actorContext.executeOperationAsync(shard.get(),
+ new RegisterChangeListener(path, dataChangeListenerActor.path(), scope),
+ new Timeout(actorContext.getOperationDuration().$times(REGISTER_DATA_CHANGE_LISTENER_TIMEOUT_FACTOR)));
+ final DataChangeListenerRegistrationProxy listenerRegistrationProxy =
+ new DataChangeListenerRegistrationProxy(listener, dataChangeListenerActor);
+ future.onComplete(new OnComplete() {
+
+ @Override
+ public void onComplete(Throwable failure, Object result)
+ throws Throwable {
+ if (failure != null) {
+ LOG.error("Failed to register listener at path " + path.toString(), failure);
+ return;
+ }
+ RegisterChangeListenerReply reply = (RegisterChangeListenerReply) result;
+ listenerRegistrationProxy.setListenerRegistrationActor(actorContext
+ .actorSelection(reply.getListenerRegistrationPath()));
+ }
+ }, actorContext.getActorSystem().dispatcher());
+
+ return listenerRegistrationProxy;
+
+ }
@Override
public DOMStoreTransactionChain createTransactionChain() {
return new TransactionProxy(actorContext, TransactionProxy.TransactionType.READ_WRITE);
}
- @Override public void onGlobalContextUpdated(SchemaContext schemaContext) {
- actorContext.getShardManager().tell(new UpdateSchemaContext(schemaContext), null);
+ @Override
+ public void onGlobalContextUpdated(SchemaContext schemaContext) {
+ actorContext.setSchemaContext(schemaContext);
+ }
+
+ @Override
+ public void close() throws Exception {
+ actorContext.shutdown();
}
}