@Override
	public void recordValue(String name, long value) {
		Gauge gauge = getOrCreate(name);
		setGaugeValue(gauge, value);
	}
Memory backed Gauge repository that uses a ConcurrentMap

@author Mark Pollack
spring-xd-analytics/src/main/java/org/springframework/xd/analytics/metrics/memory/InMemoryGaugeRepository.java