/**
* Add a tag to the metrics
*
* @param name of the tag
* @param description of the tag
* @param value of the tag
* @param override existing tag if true
* @return the registry (for keep adding tags)
*/
public MetricsRegistry tag(String name, String description, String value, boolean override) {
if (!override) checkTagName(name);
tagsMap.put(name, new MetricsTag(name, description, value));
return this;
}
