Add missing DOMDataTreeService method

DOMDataTreeService is an extensible service, hence we need to report
our supported (none) extensions.

Change-Id: I209dee750f3bef822c15dd472f1097b64c585e96
Signed-off-by: Robert Varga <robert.varga@pantheon.tech>

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/sharding/DistributedShardedDOMDataTree.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/sharding/DistributedShardedDOMDataTree.java
index 1b2d99388370e196d0e501b6714a29f57e14469d..53d0270312d2b5e06e8b8dc87fe480d855087a1c 100644 (file)
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/sharding/DistributedShardedDOMDataTree.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/sharding/DistributedShardedDOMDataTree.java
@@ -22,6 +22,7 @@ import com.google.common.base.Optional;
 import com.google.common.base.Preconditions;
 import com.google.common.base.Throwables;
 import com.google.common.collect.ForwardingObject;
+import com.google.common.collect.ImmutableMap;
 import com.google.common.util.concurrent.FutureCallback;
 import com.google.common.util.concurrent.Futures;
 import com.google.common.util.concurrent.ListenableFuture;
@@ -74,6 +75,7 @@ import org.opendaylight.mdsal.dom.api.DOMDataTreeLoopException;
 import org.opendaylight.mdsal.dom.api.DOMDataTreeProducer;
 import org.opendaylight.mdsal.dom.api.DOMDataTreeProducerException;
 import org.opendaylight.mdsal.dom.api.DOMDataTreeService;
+import org.opendaylight.mdsal.dom.api.DOMDataTreeServiceExtension;
 import org.opendaylight.mdsal.dom.api.DOMDataTreeShard;
 import org.opendaylight.mdsal.dom.api.DOMDataTreeShardingConflictException;
 import org.opendaylight.mdsal.dom.api.DOMDataTreeShardingService;
@@ -285,6 +287,11 @@ public class DistributedShardedDOMDataTree implements DOMDataTreeService, DOMDat
         return shardedDOMDataTree.registerListener(listener, subtrees, allowRxMerges, producers);
     }
 
+    @Override
+    public Map<Class<? extends DOMDataTreeServiceExtension>, DOMDataTreeServiceExtension> getSupportedExtensions() {
+        return ImmutableMap.of();
+    }
+
     @Nonnull
     @Override
     public DOMDataTreeProducer createProducer(@Nonnull final Collection<DOMDataTreeIdentifier> subtrees) {