import akka.actor.ActorRef;
import akka.actor.ActorSystem;
+import com.google.common.util.concurrent.ListeningExecutorService;
+import com.google.common.util.concurrent.MoreExecutors;
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 java.util.concurrent.Executors;
+
/**
*
*/
-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 int DEFAULT_EXECUTOR_POOL_SIZE = 10;
private final String type;
private final ActorContext actorContext;
- public DistributedDataStore(ActorSystem actorSystem, String type) {
- this(new ActorContext(actorSystem, actorSystem.actorOf(ShardManager.props(type))), type);
+ private SchemaContext schemaContext;
+
+
+
+ /**
+ * Executor used to run FutureTask's
+ *
+ * This is typically used when we need to make a request to an actor and
+ * wait for it's response and the consumer needs to be provided a Future.
+ *
+ * FIXME : Make the thread pool size configurable.
+ */
+ private final ListeningExecutorService executor =
+ MoreExecutors.listeningDecorator(Executors.newFixedThreadPool(DEFAULT_EXECUTOR_POOL_SIZE));
+
+ public DistributedDataStore(ActorSystem actorSystem, String type, ClusterWrapper cluster, Configuration configuration) {
+ this(new ActorContext(actorSystem, actorSystem
+ .actorOf(ShardManager.props(type, cluster, configuration),
+ "shardmanager-" + type), cluster, configuration), type);
}
public DistributedDataStore(ActorContext actorContext, String type) {
@Override
- public <L extends AsyncDataChangeListener<InstanceIdentifier, NormalizedNode<?, ?>>> ListenerRegistration<L> registerChangeListener(
- InstanceIdentifier path, L listener,
+ public <L extends AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>> ListenerRegistration<L> registerChangeListener(
+ YangInstanceIdentifier path, L listener,
AsyncDataBroker.DataChangeScope scope) {
- ActorRef dataChangeListenerActor = actorContext.getActorSystem().actorOf(DataChangeListener.props());
+ ActorRef dataChangeListenerActor = actorContext.getActorSystem().actorOf(
+ DataChangeListener.props(schemaContext,listener,path ));
- Object result = actorContext.executeShardOperation(Shard.DEFAULT_NAME,
- new RegisterChangeListener(path, dataChangeListenerActor.path(),
- AsyncDataBroker.DataChangeScope.BASE),
- ActorContext.ASK_DURATION);
+ String shardName = ShardStrategyFactory.getStrategy(path).findShard(path);
- RegisterChangeListenerReply reply = (RegisterChangeListenerReply) result;
- return new ListenerRegistrationProxy(reply.getListenerRegistrationPath());
+ Object result = actorContext.executeLocalShardOperation(shardName,
+ new RegisterChangeListener(path, dataChangeListenerActor.path(),
+ scope),
+ ActorContext.ASK_DURATION
+ );
+
+ if (result != null) {
+ RegisterChangeListenerReply reply = (RegisterChangeListenerReply) result;
+ return new DataChangeListenerRegistrationProxy(actorContext
+ .actorSelection(reply.getListenerRegistrationPath()), listener,
+ dataChangeListenerActor);
+ }
+
+ LOG.debug(
+ "No local shard for shardName {} was found so returning a noop registration",
+ shardName);
+ return new NoOpDataChangeListenerRegistration(listener);
}
+
+
@Override
public DOMStoreTransactionChain createTransactionChain() {
- return new TransactionChainProxy(actorContext);
+ return new TransactionChainProxy(actorContext, executor, schemaContext);
}
@Override
public DOMStoreReadTransaction newReadOnlyTransaction() {
- return new TransactionProxy(actorContext, TransactionProxy.TransactionType.READ_ONLY);
+ return new TransactionProxy(actorContext, TransactionProxy.TransactionType.READ_ONLY,
+ executor, schemaContext);
}
@Override
public DOMStoreWriteTransaction newWriteOnlyTransaction() {
- return new TransactionProxy(actorContext, TransactionProxy.TransactionType.WRITE_ONLY);
+ return new TransactionProxy(actorContext, TransactionProxy.TransactionType.WRITE_ONLY,
+ executor, schemaContext);
}
@Override
public DOMStoreReadWriteTransaction newReadWriteTransaction() {
- return new TransactionProxy(actorContext, TransactionProxy.TransactionType.READ_WRITE);
+ return new TransactionProxy(actorContext, TransactionProxy.TransactionType.READ_WRITE,
+ executor, schemaContext);
}
@Override public void onGlobalContextUpdated(SchemaContext schemaContext) {
- actorContext.getShardManager().tell(new UpdateSchemaContext(schemaContext), null);
+ this.schemaContext = schemaContext;
+ actorContext.getShardManager().tell(
+ new UpdateSchemaContext(schemaContext), null);
+ }
+
+ @Override public void close() throws Exception {
+ actorContext.shutdown();
+
}
}