NormalizedNodeAggregator should also report empty

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

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DataTreeCohortActorRegistry.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DataTreeCohortActorRegistry.java
index 4364e22d2ba85120e2c162d23f1547578caff589..f213cc7588ab3c6d3b7794bf10ac914824ce9477 100644 (file)
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DataTreeCohortActorRegistry.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DataTreeCohortActorRegistry.java
@@ -5,49 +5,53 @@
  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
  * and is available at http://www.eclipse.org/legal/epl-v10.html
  */
-
 package org.opendaylight.controller.cluster.datastore;
 
+import static java.util.Objects.requireNonNull;
+
 import akka.actor.ActorRef;
 import akka.actor.PoisonPill;
 import akka.actor.Status;
 import akka.util.Timeout;
-import com.google.common.base.Preconditions;
+import com.google.common.collect.ArrayListMultimap;
+import com.google.common.collect.Multimap;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
-import javax.annotation.concurrent.NotThreadSafe;
+import java.util.concurrent.Executor;
 import org.opendaylight.controller.cluster.access.concepts.TransactionIdentifier;
-import org.opendaylight.controller.cluster.datastore.DataTreeCohortActor.CanCommit;
-import org.opendaylight.controller.md.sal.dom.spi.AbstractRegistrationTree;
-import org.opendaylight.controller.md.sal.dom.spi.RegistrationTreeNode;
-import org.opendaylight.controller.md.sal.dom.spi.RegistrationTreeSnapshot;
 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
 import org.opendaylight.mdsal.dom.api.DOMDataTreeCandidate;
 import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
+import org.opendaylight.mdsal.dom.spi.AbstractRegistrationTree;
+import org.opendaylight.mdsal.dom.spi.RegistrationTreeNode;
+import org.opendaylight.mdsal.dom.spi.RegistrationTreeSnapshot;
 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidateNode;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.ModificationType;
+import org.opendaylight.yangtools.yang.data.tree.api.DataTreeCandidate;
+import org.opendaylight.yangtools.yang.data.tree.api.DataTreeCandidateNode;
+import org.opendaylight.yangtools.yang.data.tree.api.ModificationType;
 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 /**
  * Registry of user commit cohorts, which is responsible for handling registration and calculation
- * of affected cohorts based on {@link DataTreeCandidate}.
+ * of affected cohorts based on {@link DataTreeCandidate}. This class is NOT thread-safe.
  *
  */
-@NotThreadSafe
 class DataTreeCohortActorRegistry extends AbstractRegistrationTree<ActorRef> {
 
     private static final Logger LOG = LoggerFactory.getLogger(DataTreeCohortActorRegistry.class);
 
     private final Map<ActorRef, RegistrationTreeNode<ActorRef>> cohortToNode = new HashMap<>();
 
+    Collection<ActorRef> getCohortActors() {
+        return new ArrayList<>(cohortToNode.keySet());
+    }
+
     @SuppressWarnings("checkstyle:IllegalCatch")
     void registerCohort(final ActorRef sender, final RegisterCohort cohort) {
         takeLock();
@@ -77,7 +81,7 @@ class DataTreeCohortActorRegistry extends AbstractRegistrationTree<ActorRef> {
         cohort.tell(PoisonPill.getInstance(), cohort);
     }
 
-    Collection<DataTreeCohortActor.CanCommit> createCanCommitMessages(final TransactionIdentifier txId,
+    List<DataTreeCohortActor.CanCommit> createCanCommitMessages(final TransactionIdentifier txId,
             final DataTreeCandidate candidate, final SchemaContext schema) {
         try (RegistrationTreeSnapshot<ActorRef> cohorts = takeSnapshot()) {
             return new CanCommitMessageBuilder(txId, candidate, schema).perform(cohorts.getRootNode());
@@ -93,11 +97,10 @@ class DataTreeCohortActorRegistry extends AbstractRegistrationTree<ActorRef> {
     }
 
     abstract static class CohortRegistryCommand {
-
         private final ActorRef cohort;
 
         CohortRegistryCommand(final ActorRef cohort) {
-            this.cohort = Preconditions.checkNotNull(cohort);
+            this.cohort = requireNonNull(cohort);
         }
 
         ActorRef getCohort() {
@@ -106,41 +109,34 @@ class DataTreeCohortActorRegistry extends AbstractRegistrationTree<ActorRef> {
     }
 
     static class RegisterCohort extends CohortRegistryCommand {
-
         private final DOMDataTreeIdentifier path;
 
         RegisterCohort(final DOMDataTreeIdentifier path, final ActorRef cohort) {
             super(cohort);
             this.path = path;
-
         }
 
         public DOMDataTreeIdentifier getPath() {
             return path;
         }
-
     }
 
     static class RemoveCohort extends CohortRegistryCommand {
-
         RemoveCohort(final ActorRef cohort) {
             super(cohort);
         }
-
     }
 
     private static class CanCommitMessageBuilder {
-
+        private final Multimap<ActorRef, DOMDataTreeCandidate> actorToCandidates = ArrayListMultimap.create();
         private final TransactionIdentifier txId;
         private final DataTreeCandidate candidate;
         private final SchemaContext schema;
-        private final Collection<DataTreeCohortActor.CanCommit> messages =
-                new ArrayList<>();
 
         CanCommitMessageBuilder(final TransactionIdentifier txId, final DataTreeCandidate candidate,
                 final SchemaContext schema) {
-            this.txId = Preconditions.checkNotNull(txId);
-            this.candidate = Preconditions.checkNotNull(candidate);
+            this.txId = requireNonNull(txId);
+            this.candidate = requireNonNull(candidate);
             this.schema = schema;
         }
 
@@ -192,8 +188,7 @@ class DataTreeCohortActorRegistry extends AbstractRegistrationTree<ActorRef> {
                 final DataTreeCandidateNode node) {
             final DOMDataTreeCandidate domCandidate = DOMDataTreeCandidateTO.create(treeIdentifier(path), node);
             for (final ActorRef reg : regs) {
-                final CanCommit message = new DataTreeCohortActor.CanCommit(txId, domCandidate, schema, reg);
-                messages.add(message);
+                actorToCandidates.put(reg, domCandidate);
             }
         }
 
@@ -201,15 +196,22 @@ class DataTreeCohortActorRegistry extends AbstractRegistrationTree<ActorRef> {
             return new DOMDataTreeIdentifier(LogicalDatastoreType.CONFIGURATION, path);
         }
 
-        private Collection<DataTreeCohortActor.CanCommit> perform(final RegistrationTreeNode<ActorRef> rootNode) {
+        List<DataTreeCohortActor.CanCommit> perform(final RegistrationTreeNode<ActorRef> rootNode) {
             final List<PathArgument> toLookup = candidate.getRootPath().getPathArguments();
             lookupAndCreateCanCommits(toLookup, 0, rootNode);
+
+            final Map<ActorRef, Collection<DOMDataTreeCandidate>> mapView = actorToCandidates.asMap();
+            final List<DataTreeCohortActor.CanCommit> messages = new ArrayList<>(mapView.size());
+            for (Map.Entry<ActorRef, Collection<DOMDataTreeCandidate>> entry: mapView.entrySet()) {
+                messages.add(new DataTreeCohortActor.CanCommit(txId, entry.getValue(), schema, entry.getKey()));
+            }
+
             return messages;
         }
     }
 
     CompositeDataTreeCohort createCohort(final SchemaContext schemaContext, final TransactionIdentifier txId,
-            final Timeout commitStepTimeout) {
-        return new CompositeDataTreeCohort(this, txId, schemaContext, commitStepTimeout);
+            final Executor callbackExecutor, final Timeout commitStepTimeout) {
+        return new CompositeDataTreeCohort(this, txId, schemaContext, callbackExecutor, commitStepTimeout);
     }
 }