Adding pref to set ruleset that feeds dashboard.

lib/Utils.js

@@ -21,7 +21,8 @@ const bmsvc = Cc["@mozilla.org/browser/nav-bookmarks-service;1"].getService(Ci.n
 const ios = Cc["@mozilla.org/network/io-service;1"].getService(Ci.nsIIOService);
 
 // timeout for fetching favicon
-let DEFAULT_TIMEOUT = 3000;
+const CURRENT_RULESET = "extensions.firefox.interest.dashboard.ruleset";
+const DEFAULT_TIMEOUT = 3000;
 
 /**
  * Merge obj2 into obj1.
@@ -364,6 +365,18 @@ exports.shouldSkip = function shouldSkip(url) {
   return skipURL;
 };
 
+exports.getRulesetPref = function() {
+  let ruleset = "dfr_rules";
+  try {
+    ruleset = Services.prefs.getCharPref(CURRENT_RULESET);
+  }
+  catch(ex) {
+    // Likely no value set for CURRENT_RULESET pref, so set the pref.
+    Services.prefs.setCharPref(CURRENT_RULESET, ruleset);
+  }
+  return ruleset;
+}
+
 exports.DataProcessorHelper = {
   initChartInStorage: function(dataNameString, storageBackend) {
     let storageObj = storageBackend || storage;

lib/streams/interestDashboardDataProcessorBolt.js

@@ -6,10 +6,9 @@
 const {createNode} = require("streams/core");
 const {storage} = require("sdk/simple-storage");
 const {TypeNamespace} = require("TypeNamespace");
-const {DataProcessorHelper} = require("Utils");
 const {Cu} = require("chrome");
-const {getHistoryDetails} = require("Utils");
-const {getFaviconForHistoryVisit, shouldSkip} = require("Utils");
+const {getFaviconForHistoryVisit, shouldSkip, DataProcessorHelper, getHistoryDetails, getRulesetPref} = require("Utils");
+
 Cu.import("resource://gre/modules/commonjs/sdk/core/promise.js");
 Cu.import("resource://gre/modules/Task.jsm");
 Cu.import("resource://gre/modules/Services.jsm");
@@ -174,7 +173,12 @@ let InterestDashboardDataProcessorBolt = {
           this.debugReport = this.debugReport.concat(message.errorData);
           DataProcessorHelper.initChartInStorage("interestDashboardData", this.storage);
           this.storage.chartData.interestDashboardData.sortedDomains = {"all": [], "byInterest": {}};
-          let interestDashboardTypeNamespace = message.chartData.rules.dfr_rules;
+
+          let ruleset = getRulesetPref();
+          let interestDashboardTypeNamespace = message.chartData.rules[ruleset];
+          if (!interestDashboardTypeNamespace) {
+            return;
+          }
 
           this.debugReport.push("Processing data for pie chart");
           let chartData = [];

lib/streams/spiderDataProcessorBolt.js

@@ -6,7 +6,7 @@
 const {createNode} = require("streams/core");
 const {storage} = require("sdk/simple-storage");
 const {TypeNamespace} = require("TypeNamespace");
-const {DataProcessorHelper} = require("Utils");
+const {DataProcessorHelper, getRulesetPref} = require("Utils");
 const {data} = require("sdk/self");
 const {Cu, Cc, Ci} = require("chrome");
 Cu.import("resource://gre/modules/Services.jsm");
@@ -114,7 +114,11 @@ let SpiderDataProcessorBolt = {
 
       ingest: function _HSB_ingest(message) {
         DataProcessorHelper.initChartInStorage("spiderData", this.storage);
-        let data = message.chartData.rules.dfr_rules;
+        let ruleset = getRulesetPref();
+        let data = message.chartData.rules[ruleset];
+        if (!data) {
+          return;
+        }
         let categories = data.categories;
 
         this._mainNodes = [{"id": 0,