private byte[] buildMetricOutput(String consumer, String query) throws JsonProcessingException {
        if (isPrometheusRequest(query))
            return buildPrometheusForConsumer(consumer);
        return toPrettyString(buildJsonForConsumer(consumer));
    }
A handler which returns state (health) information from this container instance: Status, metrics and vespa version.

@author Simon Thoresen Hult
container-core/src/main/java/com/yahoo/container/jdisc/state/StateHandler.java