Closes-Bug: #1463324

Here, vRotuer data source is updated sequentially, like in 1st call, all
the basic details are fetched and in the second call generators
information is fetched.
As the scatter chart doesn't need information from generators to render,
earlier a check was added not to render scatterchart while updating
datasource with just generators information, which is blocking updating
scatterchart with local cache that has generators information
Commented this check

Change-Id: Ifdf62acca34ba7b1091d9eeed88594fe97426e65

webroot/monitor/infra/vrouter/ui/js/monitor_infra_vrouter_summary.js

@@ -6,6 +6,7 @@
  * vRouters Summary Page
  */
 monitorInfraComputeSummaryClass = (function() {
+    var crossFilterInitialized = false;
     var computeNodesGrid,vRoutersData = [];
     var vRouterDataWithStatusInfo = [];
     var filteredNodeNames = [];
@@ -43,14 +44,16 @@ monitorInfraComputeSummaryClass = (function() {
           filteredNodeNames.push(obj['name']);
         });
         computeNodesGrid = $('#divcomputesgrid').data('contrailGrid');
-        computeNodesGrid._dataView.setFilterArgs({
-            filteredNodeNames:filteredNodeNames
-        });
-        computeNodesGrid._dataView.setFilter(function(item,args) {
-            if($.inArray(item['name'],args['filteredNodeNames']) > -1)
-                return true;
-            return false;
-        });
+        if(computeNodesGrid != null && computeNodesGrid._dataView != null) {
+            computeNodesGrid._dataView.setFilterArgs({
+                filteredNodeNames:filteredNodeNames
+            });
+            computeNodesGrid._dataView.setFilter(function(item,args) {
+                if($.inArray(item['name'],args['filteredNodeNames']) > -1)
+                    return true;
+                return false;
+            });
+        }
 
         //update the header
         var totalCnt = vRoutersDataSource.getItems().length;
@@ -62,7 +65,7 @@ monitorInfraComputeSummaryClass = (function() {
         var vRouterData = result['data'];
         var source = result['cfg']['source'];
         //Do not update crossfilters if the update request also came from crossfilter or because of a generator update
-        if(source == 'crossfilter' || source == 'generator'){
+        if(source == 'crossfilter') {
             return;
         }
         $('.chart > svg').remove();
@@ -151,10 +154,12 @@ monitorInfraComputeSummaryClass = (function() {
     function updatevRouterSummaryCharts(result){
         var filteredNodes = result['data'];
         var source = result['cfg']['source'];
-        //if the callback is because of an update to generator then dont update the charts
-        if(source == 'generator'){
-            return;
-        }
+        //If the callback is because of an update to generator then dont update the charts
+        //Putting this check is not updating the charts on coming to this page and local cache is already available with 
+        //generators information
+        // if(source == 'generator'){
+        //     return;
+        // }
         updateChartsForSummary(filteredNodes,'compute');
     }
 
@@ -198,7 +203,8 @@ monitorInfraComputeSummaryClass = (function() {
             if(filteredNodes[0] != null && filteredNodes[0]['isGeneratorRetrieved'] == true){
                 source = 'generator';
             }
-            if(source != 'generator'){
+            if(crossFilterInitialized == false) {
+                crossFilterInitialized = true;
                 manageCrossFilters.updateCrossFilter('vRoutersCF',filteredNodes);
                 //Add current crossfilters dimensions again as they will be lost on crossfilter reset
                 manageCrossFilters.addDimension('vRoutersCF','intfCnt');