Implement DistributedDataStore#registerDataChangeListener

[controller.git] / opendaylight / md-sal / sal-distributed-datastore / src / main / java / org / opendaylight / controller / cluster / datastore / DistributedDataStore.java

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DistributedDataStore.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DistributedDataStore.java
index c87f1abb21c74cf585d2fcfe6a4057b0c7143e99..29fc259bb75935d25f13dcb8f7a0865f74f145cd 100644 (file)
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DistributedDataStore.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DistributedDataStore.java
@@ -9,7 +9,14 @@
 package org.opendaylight.controller.cluster.datastore;
 
 import akka.actor.ActorRef;
+import akka.actor.ActorSelection;
 import akka.actor.ActorSystem;
+import akka.util.Timeout;
+import org.opendaylight.controller.cluster.datastore.messages.FindPrimary;
+import org.opendaylight.controller.cluster.datastore.messages.PrimaryFound;
+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.md.sal.common.api.data.AsyncDataBroker;
 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeListener;
 import org.opendaylight.controller.sal.core.spi.data.DOMStore;
@@ -20,39 +27,114 @@ 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.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.Await;
+import scala.concurrent.Future;
+import scala.concurrent.duration.Duration;
+import scala.concurrent.duration.FiniteDuration;
+
+import java.util.concurrent.TimeUnit;
+
+import static akka.pattern.Patterns.ask;
 
 /**
  *
  */
-public class DistributedDataStore implements DOMStore {
-  private final ActorRef shardManager;
-
-  public DistributedDataStore(ActorSystem actorSystem, String type) {
-    shardManager = actorSystem.actorOf(ShardManager.props(type));
-  }
-
-  @Override
-  public <L extends AsyncDataChangeListener<InstanceIdentifier, NormalizedNode<?, ?>>> ListenerRegistration<L> registerChangeListener(InstanceIdentifier path, L listener, AsyncDataBroker.DataChangeScope scope) {
-    return new ListenerRegistrationProxy();
-  }
-
-  @Override
-  public DOMStoreTransactionChain createTransactionChain() {
-    return new TransactionChainProxy();
-  }
-
-  @Override
-  public DOMStoreReadTransaction newReadOnlyTransaction() {
-    return new TransactionProxy();
-  }
-
-  @Override
-  public DOMStoreWriteTransaction newWriteOnlyTransaction() {
-    return new TransactionProxy();
-  }
-
-  @Override
-  public DOMStoreReadWriteTransaction newReadWriteTransaction() {
-    return new TransactionProxy();
-  }
+public class DistributedDataStore implements DOMStore, SchemaContextListener {
+
+    private static final Logger
+        LOG = LoggerFactory.getLogger(DistributedDataStore.class);
+
+    final FiniteDuration ASK_DURATION = Duration.create(5, TimeUnit.SECONDS);
+    final Duration AWAIT_DURATION = Duration.create(5, TimeUnit.SECONDS);
+
+    private final ActorRef shardManager;
+    private final ActorSystem actorSystem;
+    private final String type;
+
+
+    public DistributedDataStore(ActorSystem actorSystem, String type) {
+        this.actorSystem = actorSystem;
+        this.type = type;
+        shardManager = actorSystem.actorOf(ShardManager.props(type));
+    }
+
+    @Override
+    public <L extends AsyncDataChangeListener<InstanceIdentifier, NormalizedNode<?, ?>>> ListenerRegistration<L> registerChangeListener(
+        InstanceIdentifier path, L listener,
+        AsyncDataBroker.DataChangeScope scope) {
+
+        ActorSelection primary = findPrimary();
+
+        ActorRef dataChangeListenerActor = actorSystem.actorOf(DataChangeListener.props());
+
+        Object result =
+            getResult(primary, new RegisterChangeListener(path, dataChangeListenerActor.path(),
+                AsyncDataBroker.DataChangeScope.BASE), ASK_DURATION);
+
+        RegisterChangeListenerReply reply = (RegisterChangeListenerReply) result;
+        return new ListenerRegistrationProxy(reply.getListenerRegistrationPath());
+    }
+
+    private ActorSelection findPrimary() {
+        Object result = getResult(shardManager, new FindPrimary(Shard.DEFAULT_NAME), ASK_DURATION);
+
+        if(result instanceof PrimaryFound){
+            PrimaryFound found = (PrimaryFound) result;
+            LOG.error("Primary found {}", found.getPrimaryPath());
+
+            return actorSystem.actorSelection(found.getPrimaryPath());
+        }
+        throw new RuntimeException("primary was not found");
+    }
+
+    private Object getResult(ActorRef actor, Object message, FiniteDuration duration){
+        Future<Object> future =
+            ask(actor, message, new Timeout(duration));
+
+        try {
+            return Await.result(future, AWAIT_DURATION);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    private Object getResult(ActorSelection actor, Object message, FiniteDuration duration){
+        Future<Object> future =
+            ask(actor, message, new Timeout(duration));
+
+        try {
+            return Await.result(future, AWAIT_DURATION);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+
+    @Override
+    public DOMStoreTransactionChain createTransactionChain() {
+        return new TransactionChainProxy();
+    }
+
+    @Override
+    public DOMStoreReadTransaction newReadOnlyTransaction() {
+        return new TransactionProxy();
+    }
+
+    @Override
+    public DOMStoreWriteTransaction newWriteOnlyTransaction() {
+        return new TransactionProxy();
+    }
+
+    @Override
+    public DOMStoreReadWriteTransaction newReadWriteTransaction() {
+        return new TransactionProxy();
+    }
+
+    @Override public void onGlobalContextUpdated(SchemaContext schemaContext) {
+        shardManager.tell(new UpdateSchemaContext(schemaContext), null);
+    }
 }