registry.rb in prometheus-client-0.6.0

- old
+ new

@@ -3,10 +3,11 @@
 require 'thread'
 
 require 'prometheus/client/counter'
 require 'prometheus/client/summary'
 require 'prometheus/client/gauge'
+require 'prometheus/client/histogram'
 
 module Prometheus
   module Client
     # Registry
     class Registry
@@ -20,11 +21,11 @@
       def register(metric)
         name = metric.name
 
         @mutex.synchronize do
           if exist?(name.to_sym)
-            fail AlreadyRegisteredError, "#{name} has already been registered"
+            raise AlreadyRegisteredError, "#{name} has already been registered"
           else
             @metrics[name.to_sym] = metric
           end
         end
 
@@ -39,9 +40,14 @@
         register(Summary.new(name, docstring, base_labels))
       end
 
       def gauge(name, docstring, base_labels = {})
         register(Gauge.new(name, docstring, base_labels))
+      end
+
+      def histogram(name, docstring, base_labels = {},
+                    buckets = Histogram::DEFAULT_BUCKETS)
+        register(Histogram.new(name, docstring, base_labels, buckets))
       end
 
       def exist?(name)
         @metrics.key?(name)
       end