Fix PartitionedAsyncLeaderElector to ensure status change listeners are properly handled

Change-Id: I9fa1268ba07734130ab7618e2110c053499bf1f1
diff --git a/core/store/primitives/src/main/java/org/onosproject/store/primitives/impl/PartitionedAsyncLeaderElector.java b/core/store/primitives/src/main/java/org/onosproject/store/primitives/impl/PartitionedAsyncLeaderElector.java
index 68acd1b..28859a8 100644
--- a/core/store/primitives/src/main/java/org/onosproject/store/primitives/impl/PartitionedAsyncLeaderElector.java
+++ b/core/store/primitives/src/main/java/org/onosproject/store/primitives/impl/PartitionedAsyncLeaderElector.java
@@ -28,7 +28,6 @@
 import org.onosproject.cluster.PartitionId;
 import org.onosproject.event.Change;
 import org.onosproject.store.service.AsyncLeaderElector;
-
 import com.google.common.collect.Maps;
 
 /**
@@ -126,4 +125,19 @@
     private Collection<AsyncLeaderElector> getLeaderElectors() {
         return partitions.values();
     }
+
+    @Override
+    public void addStatusChangeListener(Consumer<Status> listener) {
+        partitions.values().forEach(elector -> elector.addStatusChangeListener(listener));
+    }
+
+    @Override
+    public void removeStatusChangeListener(Consumer<Status> listener) {
+        partitions.values().forEach(elector -> elector.removeStatusChangeListener(listener));
+    }
+
+    @Override
+    public Collection<Consumer<Status>> statusChangeListeners() {
+        throw new UnsupportedOperationException();
+    }
 }
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