@Override
	public long increment(String name, long amount) {
		Counter c = getOrCreate(name);
		return c.increment(amount);
	}
Memory backed implementation of Counter repository that uses a ConcurrentMap.

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