Examples with TimeSeriesRecorder org.apache.jackrabbit.stats.TimeSeriesRecorder used on opensource projects

Example 1 with TimeSeriesRecorder

use of org.apache.jackrabbit.stats.TimeSeriesRecorder in project jackrabbit by apache.

the class ListenerTracker method getTrackedListener.

public EventListener getTrackedListener() {
    return new EventListener() {

        @Override
        public void onEvent(EventIterator events) {
            eventDeliveries.incrementAndGet();
            final long start = nanoTime();
            try {
                beforeEventDelivery();
                listener.onEvent(new EventIteratorAdapter(events) {

                    long t0 = start;

                    private void recordTime(TimeSeriesRecorder recorder) {
                        recorder.getCounter().addAndGet(-(t0 - (t0 = nanoTime())));
                    }

                    @Override
                    public Object next() {
                        recordTime(eventConsumerTime);
                        eventsDelivered.incrementAndGet();
                        eventCount.getCounter().incrementAndGet();
                        Object object = super.next();
                        if (object instanceof JackrabbitEvent) {
                            object = new JackrabbitEventTracker(ListenerTracker.this, (JackrabbitEvent) object);
                        } else if (object instanceof Event) {
                            object = new EventTracker(ListenerTracker.this, (Event) object);
                        }
                        recordTime(eventProducerTime);
                        return object;
                    }

                    @Override
                    public boolean hasNext() {
                        recordTime(eventConsumerTime);
                        boolean result = super.hasNext();
                        recordTime(eventProducerTime);
                        return result;
                    }
                });
            } finally {
                afterEventDelivery();
                eventDeliveryTime.addAndGet(nanoTime() - start);
            }
        }

        @Override
        public String toString() {
            return ListenerTracker.this.toString();
        }
    };
}