public void add()

in geronimo-metrics-common/src/main/java/org/apache/geronimo/microprofile/metrics/common/HistogramImpl.java [131:154]

• 22 lines of code
• 5 McCabe index (conditional complexity)

    public void add(final long value) {
        ensureUpToDate();

        final Lock lock = this.lock.readLock();
        lock.lock();
        try {
            final Value sample = new Value(value, Math.exp(ALPHA * (nowSec() - startTime)));
            final double priority = sample.weight / Math.random();

            final long size = count.incrementAndGet();
            if (size <= BUCKET_SIZE) {
                bucket.put(priority, sample);
            } else { // iterate through the bucket until we need removing low priority entries to get a new space
                double first = bucket.firstKey();
                if (first < priority && bucket.putIfAbsent(priority, sample) == null) {
                    while (bucket.remove(first) == null) {
                        first = bucket.firstKey();
                    }
                }
            }
        } finally {
            lock.unlock();
        }
    }