this.metricsProperties = metricsProperties;
this.metricsPropertyKey = metricsName + "." + getReporterName() + ".";
this.hostAndPort = hostAndPort;
MetricsFilterList filterList = new MetricsFilterList();
filterList.addMetricFilter(new GroupNameMetricsFilter(metricsName));
String regexpFilterKey = metricsPropertyKey + "regexp.";
Set<String> regexpExpressions = new HashSet<String>();
for(Map.Entry<String, String> entry: metricsProperties.entrySet()) {