Refactoring SegmentRouting, OFDPA driver and Group Store

- Replace SRNextObjectiveContext with DefaultObjectiveContext
- Move several log messages to lower log level

Change-Id: Ice2fb598b8e4502cb4acee1a95235551ec7c8db7
diff --git a/drivers/default/src/main/java/org/onosproject/driver/pipeline/Ofdpa2GroupHandler.java b/drivers/default/src/main/java/org/onosproject/driver/pipeline/Ofdpa2GroupHandler.java
index f21ae4c..6a2eb7e 100644
--- a/drivers/default/src/main/java/org/onosproject/driver/pipeline/Ofdpa2GroupHandler.java
+++ b/drivers/default/src/main/java/org/onosproject/driver/pipeline/Ofdpa2GroupHandler.java
@@ -1105,7 +1105,7 @@
         Set<GroupChainElem> gceSet = pendingGroups.remove(key);
         if (gceSet != null) {
             for (GroupChainElem gce : gceSet) {
-                log.info("Group service {} group key {} in device {}. "
+                log.debug("Group service {} group key {} in device {}. "
                                 + "Processing next group in group chain with group id 0x{}",
                         (added) ? "ADDED" : "processed",
                         key, deviceId,
@@ -1118,7 +1118,7 @@
             if (nextGrpList != null) {
                 pendingNextObjectives.invalidate(key);
                 nextGrpList.forEach(nextGrp -> {
-                    log.info("Group service {} group key {} in device:{}. "
+                    log.debug("Group service {} group key {} in device:{}. "
                                     + "Done implementing next objective: {} <<-->> gid:0x{}",
                             (added) ? "ADDED" : "processed",
                             key, deviceId, nextGrp.nextObjective().id(),