ONOS-1479 -- GUI - augmenting topology view for extensibility: WIP.

Change-Id: I11820a9ff8f446c0d10a0311cee5ce448c15f402
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/TopologyViewMessageHandler.java b/web/gui/src/main/java/org/onosproject/ui/impl/TopologyViewMessageHandler.java
index 9a360bf..b88ee4f 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/TopologyViewMessageHandler.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/TopologyViewMessageHandler.java
@@ -214,6 +214,8 @@
                 new UpdateMeta(),
                 new EqMasters(),
 
+                // TODO: implement "showHighlights" event (replaces "showTraffic")
+
                 // TODO: migrate traffic related to separate app
                 new AddHostIntent(),
                 new AddMultiSourceIntent(),
@@ -965,6 +967,14 @@
 
         @Override
         public void processItems(List<Event> items) {
+            // Start-of-Debugging
+            long now = System.currentTimeMillis();
+            String me = this.toString();
+            String miniMe = me.replaceAll("^.*@", "me@");
+            log.debug("Time: {}; this: {}, processing items ({} events)",
+                      now, miniMe, items.size());
+            // End-of-Debugging
+
             try {
                 if (summaryRunning) {
                     msgSender.execute(() -> requestSummary(0));