resolves notification listener conflicts

Author: rashidsp

lib/optimizely.rb

@@ -24,6 +24,7 @@
 require_relative 'optimizely/helpers/validator'
 require_relative 'optimizely/helpers/variable_type'
 require_relative 'optimizely/logger'
+require_relative 'optimizely/notification_center'
 require_relative 'optimizely/project_config'
 
 module Optimizely
@@ -38,6 +39,7 @@ class Project
     attr_reader :event_builder
     attr_reader :event_dispatcher
     attr_reader :logger
+    attr_reader :notification_center
 
     def initialize(datafile, event_dispatcher = nil, logger = nil, error_handler = nil, skip_json_validation = false, user_profile_service = nil)
       # Constructor for Projects.
@@ -83,6 +85,7 @@ def initialize(datafile, event_dispatcher = nil, logger = nil, error_handler = n
 
       @decision_service = DecisionService.new(@config, @user_profile_service)
       @event_builder = EventBuilder.new(@config)
+      @notification_center = NotificationCenter.new(@logger, @error_handler)
     end
 
     def activate(experiment_key, user_id, attributes = nil)
@@ -231,6 +234,10 @@ def track(event_key, user_id, attributes = nil, event_tags = nil)
       rescue => e
         @logger.log(Logger::ERROR, "Unable to dispatch conversion event. Error: #{e}")
       end
+      @notification_center.send_notifications(
+          NotificationCenter::NOTIFICATION_TYPES[:TRACK],
+          event_key, user_id, attributes, event_tags, conversion_event
+      )
     end
 
     def is_feature_enabled(feature_flag_key, user_id, attributes = nil)
@@ -512,6 +519,11 @@ def send_impression(experiment, variation_key, user_id, attributes = nil)
       rescue => e
         @logger.log(Logger::ERROR, "Unable to dispatch impression event. Error: #{e}")
       end
+      variation = @config.get_variation_from_id(experiment_key, variation_id)
+      @notification_center.send_notifications(
+          NotificationCenter::NOTIFICATION_TYPES[:ACTIVATE],
+          experiment,user_id, attributes, variation, impression_event
+      )
     end
   end
 end