metrics: move capture date logic to gap call

app/models/metric/capture.rb

@@ -64,6 +64,9 @@ def self.perf_capture_timer(ems_id)
   end
 
   def self.perf_capture_gap(start_time, end_time, zone_id = nil, ems_id = nil)
+    raise ArgumentError, "end_time and start_time must be specified" if start_time.nil? || end_time.nil?
+    raise _("Start time must be earlier than End time") if start_time > end_time
+
     _log.info("Queueing performance capture for range: [#{start_time} - #{end_time}]...")
 
     emses = if ems_id
@@ -74,7 +77,7 @@ def self.perf_capture_gap(start_time, end_time, zone_id = nil, ems_id = nil)
             end
     emses.each do |ems|
       targets = Metric::Targets.capture_ems_targets(ems, :exclude_storages => true)
-      target_options = Hash.new { |_n, _v| {:start_time => start_time, :end_time => end_time, :zone => ems.zone, :interval => 'historical'} }
+      target_options = Hash.new { |_n, _v| {:start_time => start_time.utc, :end_time => end_time.utc, :zone => ems.zone, :interval => 'historical'} }
       queue_captures(targets, target_options)
     end
 

app/models/metric/ci_mixin/capture.rb

@@ -18,7 +18,6 @@ def ems_for_capture_target
   end
 
   def split_capture_intervals(interval_name, start_time, end_time, threshold = 1.day)
-    raise _("Start time must be earlier than End time") if start_time > end_time
     # Create an array of ordered pairs from start_time and end_time so that each ordered pair is contained
     # within the threshold.  Then, reverse it so the newest ordered pair is first:
     # start_time = 2017/01/01 12:00:00, end_time = 2017/01/04 12:00:00
@@ -32,16 +31,15 @@ def split_capture_intervals(interval_name, start_time, end_time, threshold = 1.d
   private :split_capture_intervals
 
   def perf_capture_queue(interval_name, options = {})
-    start_time = options[:start_time]&.utc
-    end_time   = options[:end_time]&.utc
+    start_time = options[:start_time]
+    end_time   = options[:end_time]
     priority   = options[:priority] || Metric::Capture.interval_priority(interval_name)
     task_id    = options[:task_id]
     zone       = options[:zone] || my_zone
     zone = zone.name if zone.respond_to?(:name)
     ems        = ems_for_capture_target
 
     raise ArgumentError, "invalid interval_name '#{interval_name}'" unless Metric::Capture::VALID_CAPTURE_INTERVALS.include?(interval_name)
-    raise ArgumentError, "end_time cannot be specified if start_time is nil" if start_time.nil? && !end_time.nil?
     raise ArgumentError, "target does not have an ExtManagementSystem" if ems.nil?
 
     # cb is the task used to group cluster realtime metrics