lib/instana/collectors/memory.rb in instana-1.0.2 vs lib/instana/collectors/memory.rb in instana-1.0.3

@@ -1,41 +1,34 @@
 require 'get_process_mem'
 
 module Instana
-  module Collector
+  module Collectors
     class Memory
       attr_accessor :payload_key
 
       def initialize
         @payload_key = :memory
-        @last_report = {}
         @this_mem = {}
       end
 
       ##
       # collect
       #
       # To collect process memory usage.
       #
+      # @return [Hash] a collection of metrics (if any)
+      #
       def collect
-        @this_mem.clear
         @this_mem[:rss_size] = ::GetProcessMem.new(Process.pid).kb
-
-        @this_mem = ::Instana::Util.enforce_deltas(@this_mem, @last_report)
-        unless @this_mem.empty?
-          @last_report.merge!(@this_mem)
-          @this_mem
-        else
-          nil
-        end
+        @this_mem
       rescue => e
         ::Instana.logger.error "#{__method__}:#{File.basename(__FILE__)}:#{__LINE__}: #{e.message}"
         ::Instana.logger.debug e.backtrace.join("\r\n")
       end
     end
   end
 end
 
 # Register the metrics collector if enabled
 if ::Instana.config[:metrics][:memory][:enabled]
-  ::Instana.collectors << ::Instana::Collector::Memory.new
+  ::Instana.collector.register(::Instana::Collectors::Memory)
 end