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[[extension-metrics-metrics, Codahale Metrics]]
= Codahale Metrics =

[devstatus]
--------------
source=extensions/metrics-codahale/dev-status.xml
--------------

Metrics extension backed by the http://metrics.dropwizard.io/[Codahale] metrics library
maintained by the http://www.dropwizard.io/[Dropwizard] folks.

include::../../build/docs/buildinfo/artifact.txt[]

== Assembly ==

Assembly is done using the provided Assembler:

[snippet,java]
----
source=extensions/metrics-codahale/src/test/java/org/apache/polygene/metrics/codahale/CodahaleMetricsTest.java
tag=assembly
----

== Reporting to Ganglia or Graphite ==

Dropwizard provide metrics reporter for Ganglia or Graphite, see the http://metrics.dropwizard.io/[official documentation]
for details.

To register reporters you need a handle to the underlying `MetricsRegistry`, the `CodahaleMetricsProvider` service
provide accessor to it:

[snippet,java]
----
source=extensions/metrics-codahale/src/test/java/org/apache/polygene/metrics/codahale/CodahaleMetricsTest.java
tag=registry
----
