CORD-1180 Collection of fixes for hash-group buckets. Required the following changes:
	  Next-objectives that edited groups are now queued in the FlowObjectiveManager instead of the driver.
	  During linkup immediately checking for previous portups that should be added to a hash group.
	  A final retry 30 secs later to catch all ports that should be part of the same hash group.

Change-Id: I7ef450149d685890ca47932b8e559a0c11dc5ab4
diff --git a/incubator/net/src/main/java/org/onosproject/incubator/net/virtual/impl/VirtualNetworkFlowObjectiveManager.java b/incubator/net/src/main/java/org/onosproject/incubator/net/virtual/impl/VirtualNetworkFlowObjectiveManager.java
index 8eba5cf..b28a34e 100644
--- a/incubator/net/src/main/java/org/onosproject/incubator/net/virtual/impl/VirtualNetworkFlowObjectiveManager.java
+++ b/incubator/net/src/main/java/org/onosproject/incubator/net/virtual/impl/VirtualNetworkFlowObjectiveManager.java
@@ -185,7 +185,7 @@
     }
 
     @Override
-    public List<String> getPendingNexts() {
+    public List<String> getPendingFlowObjectives() {
         List<String> pendingNexts = new ArrayList<>();
         for (Integer nextId : pendingForwards.keySet()) {
             Set<PendingNext> pnext = pendingForwards.get(nextId);
@@ -201,6 +201,11 @@
         return pendingNexts;
     }
 
+    @Override
+    public List<String> getPendingNexts() {
+        return getPendingFlowObjectives();
+    }
+
     private boolean queueObjective(DeviceId deviceId, ForwardingObjective fwd) {
         if (fwd.nextId() == null ||
                 flowObjectiveStore.getNextGroup(fwd.nextId()) != null) {
@@ -336,10 +341,12 @@
 
     // Processing context for initializing pipeline driver behaviours.
     private class InnerPipelineContext implements PipelinerContext {
+        @Override
         public ServiceDirectory directory() {
             return serviceDirectory;
         }
 
+        @Override
         public FlowObjectiveStore store() {
             return flowObjectiveStore;
         }
@@ -625,4 +632,5 @@
             }
         }
     }
+
 }