Add event_id to the event parser and change the query for refresh eve…

…nts to use this attribute

app/models/manageiq/providers/lenovo/physical_infra_manager/event_catcher/stream.rb

@@ -56,6 +56,6 @@ def create_event_monitor_handle(ems)
   end
 
   def get_last_cnn_from_events(ems_id)
-    EventStream.where(:ems_id => ems_id).select(:full_data).map { |event| event.full_data["cn"].to_i }.max || 1
+    EventStream.where(:ems_id => ems_id).maximum('event_id') || 1
   end
 end

app/models/manageiq/providers/lenovo/physical_infra_manager/event_parser.rb

@@ -2,6 +2,7 @@ module ManageIQ::Providers::Lenovo::PhysicalInfraManager::EventParser
   def self.event_to_hash(event, ems_id)
     event_hash = {
       :event_type         => event.eventID,
+      :event_id           => event.cn,
       :source             => "LenovoXclarity",
       :physical_server_id => get_physical_server_id(event.componentID),
       :message            => event.msg,