public boolean isCircuitBreakerTripped(long currentTime) {
        long circuitBreakerTimeout = getCircuitBreakerTimeout();
        if (circuitBreakerTimeout <= 0) {
            return false;
        }
        return circuitBreakerTimeout > currentTime;
    }
Call this method to note the response time after every request
@param msecs
ribbon-loadbalancer/src/main/java/com/netflix/loadbalancer/ServerStats.java