http://metrics.dropwizard.io/metrics-core: Metrics is a Java library which gives you unparalleled insight into what your code does in production. Metrics provides a powerful toolkit of ways to measure the behavior of critical components in your production environment.
  • Coda Hale
  • Ryan Tenney
  • Artem Prigoda 
package com.codahale.metrics;


An interface for metric types which have counts.

/**
 * An interface for metric types which have counts.
 */
public interface Counting {
    
Returns the current count.

Returns:the current count
/**
     * Returns the current count.
     *
     * @return the current count
     */
    long getCount();
}