How to configure reporter to notice codahale metrics?

[jpe42]

I've enabled the reporter and I am able to see basic jvm metrics on the datadog dashboard. However I don't see any of the metrics I am reporting via the 'com.codahale.metrics:metrics-core' library. I am able observe my metrics using a console reporter. Am I missing some configuration to register the vistarmedia reporter with my instance of codahales MetricRegistry?

Only thing I've set up so far with respect to this reporter is:
DatadogReporter.enable( 15, TimeUnit.SECONDS, "apikeyremoved", "hostname" );