MetricCollectorImpl.java 文件源码

@Override
public void registerMetric(Metric metric, String topLevelName, String... additionalNames) {
    Preconditions.checkNotNull(metric, "metric cannot be null");

    if (MetricSet.class.isAssignableFrom(metric.getClass())) {
        if (StringUtils.isNotBlank(topLevelName)) {
            registerMetricSet(MetricSet.class.cast(metric), MetricNamingUtil.join(topLevelName, additionalNames));
        } else {
            registerMetricSet(MetricSet.class.cast(metric));
        }
    } else {
        metricRegistry.register(buildFullName(topLevelName, additionalNames, getPostfixForMetric(metric)), metric);
    }
}