in core/src/main/java/com/spotify/metrics/core/SemanticMetricRegistry.java [552:562]
protected void registerAll(final MetricId prefix, final SemanticMetricSet metrics)
throws IllegalArgumentException {
for (final Map.Entry<MetricId, Metric> entry : metrics.getMetrics().entrySet()) {
if (entry.getValue() instanceof SemanticMetricSet) {
registerAll(MetricId.join(prefix, entry.getKey()),
(SemanticMetricSet) entry.getValue());
} else {
register(MetricId.join(prefix, entry.getKey()), entry.getValue());
}
}
}