NormalizedNodeAggregator should also report empty

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

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DefaultShardDataTreeChangeListenerPublisher.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DefaultShardDataTreeChangeListenerPublisher.java
index 895ce30e8ba10ebd16f3bffddac94e706fd8d01c..1b8ed12feda00d079d04e8f8b06f25eb1b319b98 100644 (file)
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DefaultShardDataTreeChangeListenerPublisher.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DefaultShardDataTreeChangeListenerPublisher.java
@@ -7,44 +7,47 @@
  */
 package org.opendaylight.controller.cluster.datastore;
 
-import com.google.common.base.Optional;
-import java.util.Collection;
+import java.util.List;
+import java.util.Optional;
 import java.util.function.Consumer;
-import javax.annotation.concurrent.NotThreadSafe;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataTreeChangeListener;
+import org.opendaylight.mdsal.dom.api.DOMDataTreeChangeListener;
 import org.opendaylight.mdsal.dom.spi.AbstractDOMDataTreeChangeListenerRegistration;
 import org.opendaylight.mdsal.dom.spi.store.AbstractDOMStoreTreeChangePublisher;
 import org.opendaylight.yangtools.concepts.ListenerRegistration;
 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate;
+import org.opendaylight.yangtools.yang.data.tree.api.DataTreeCandidate;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 /**
  * Default implementation of ShardDataTreeChangeListenerPublisher that directly generates and publishes
- * notifications for DataTreeChangeListeners.
+ * notifications for DataTreeChangeListeners. This class is NOT thread-safe.
  *
  * @author Thomas Pantelis
  */
-@NotThreadSafe
 final class DefaultShardDataTreeChangeListenerPublisher extends AbstractDOMStoreTreeChangePublisher
         implements ShardDataTreeChangeListenerPublisher {
     private static final Logger LOG = LoggerFactory.getLogger(DefaultShardDataTreeChangeListenerPublisher.class);
     private String logContext;
 
-    DefaultShardDataTreeChangeListenerPublisher(String logContext) {
+    DefaultShardDataTreeChangeListenerPublisher(final String logContext) {
         this.logContext = logContext;
     }
 
     @Override
     public void publishChanges(final DataTreeCandidate candidate) {
-        LOG.debug("{}: publishChanges: {}", logContext, candidate);
+        if (LOG.isTraceEnabled()) {
+            LOG.trace("{}: publishChanges: {}", logContext, candidate);
+        } else {
+            LOG.debug("{}: publishChanges: rootPath: {}", logContext, candidate.getRootPath());
+        }
+
         processCandidateTree(candidate);
     }
 
     @Override
-    protected void notifyListener(AbstractDOMDataTreeChangeListenerRegistration<?> registration,
-            Collection<DataTreeCandidate> changes) {
+    protected void notifyListener(final AbstractDOMDataTreeChangeListenerRegistration<?> registration,
+            final List<DataTreeCandidate> changes) {
         LOG.debug("{}: notifyListener: listener: {}", logContext, registration.getInstance());
         registration.getInstance().onDataTreeChanged(changes);
     }
@@ -55,54 +58,38 @@ final class DefaultShardDataTreeChangeListenerPublisher extends AbstractDOMStore
     }
 
     @Override
-    public void registerTreeChangeListener(YangInstanceIdentifier treeId, DOMDataTreeChangeListener listener,
-            Optional<DataTreeCandidate> initialState,
-            Consumer<ListenerRegistration<DOMDataTreeChangeListener>> onRegistration) {
-        LOG.debug("{}: registerTreeChangeListener: path: {}, listener: {}", logContext, treeId, listener);
-
-        AbstractDOMDataTreeChangeListenerRegistration<org.opendaylight.mdsal.dom.api.DOMDataTreeChangeListener>
-            registration = super.registerTreeChangeListener(treeId, new ForwardingDOMDataTreeChangeListener(listener));
-
-        onRegistration.accept(
-            new org.opendaylight.controller.md.sal.dom.spi.AbstractDOMDataTreeChangeListenerRegistration<
-                    DOMDataTreeChangeListener>(listener) {
-                @Override
-                protected void removeRegistration() {
-                    registration.close();
-                }
-            });
+    public void registerTreeChangeListener(final YangInstanceIdentifier treeId,
+            final DOMDataTreeChangeListener listener, final Optional<DataTreeCandidate> initialState,
+            final Consumer<ListenerRegistration<DOMDataTreeChangeListener>> onRegistration) {
+        registerTreeChangeListener(treeId, listener, onRegistration);
 
         if (initialState.isPresent()) {
             notifySingleListener(treeId, listener, initialState.get(), logContext);
+        } else {
+            listener.onInitialData();
         }
     }
 
-    static void notifySingleListener(YangInstanceIdentifier treeId, DOMDataTreeChangeListener listener,
-            DataTreeCandidate state, String logContext) {
+    void registerTreeChangeListener(final YangInstanceIdentifier treeId, final DOMDataTreeChangeListener listener,
+            final Consumer<ListenerRegistration<DOMDataTreeChangeListener>> onRegistration) {
+        LOG.debug("{}: registerTreeChangeListener: path: {}, listener: {}", logContext, treeId, listener);
+
+        AbstractDOMDataTreeChangeListenerRegistration<DOMDataTreeChangeListener> registration =
+                super.registerTreeChangeListener(treeId, listener);
+
+        onRegistration.accept(registration);
+    }
+
+    static void notifySingleListener(final YangInstanceIdentifier treeId, final DOMDataTreeChangeListener listener,
+            final DataTreeCandidate state, final String logContext) {
         LOG.debug("{}: notifySingleListener: path: {}, listener: {}", logContext, treeId, listener);
         DefaultShardDataTreeChangeListenerPublisher publisher =
                 new DefaultShardDataTreeChangeListenerPublisher(logContext);
         publisher.logContext = logContext;
-        publisher.registerTreeChangeListener(treeId, listener, Optional.absent(), noop -> { });
-        publisher.publishChanges(state);
-    }
-
-    private static class ForwardingDOMDataTreeChangeListener
-            implements org.opendaylight.mdsal.dom.api.DOMDataTreeChangeListener {
-        final DOMDataTreeChangeListener delegate;
-
-        ForwardingDOMDataTreeChangeListener(DOMDataTreeChangeListener delegate) {
-            this.delegate = delegate;
-        }
-
-        @Override
-        public void onDataTreeChanged(Collection<DataTreeCandidate> changes) {
-            delegate.onDataTreeChanged(changes);
-        }
+        publisher.registerTreeChangeListener(treeId, listener);
 
-        @Override
-        public String toString() {
-            return delegate.toString();
+        if (!publisher.processCandidateTree(state)) {
+            listener.onInitialData();
         }
     }
 }