| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.jackrabbit.oak.plugins.metric; |
| |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.atomic.AtomicLong; |
| |
| import com.codahale.metrics.Counter; |
| import com.codahale.metrics.Counting; |
| import com.codahale.metrics.Histogram; |
| import com.codahale.metrics.Meter; |
| import com.codahale.metrics.Timer; |
| import org.apache.jackrabbit.oak.stats.CounterStats; |
| import org.apache.jackrabbit.oak.stats.HistogramStats; |
| import org.apache.jackrabbit.oak.stats.MeterStats; |
| import org.apache.jackrabbit.oak.stats.TimerStats; |
| |
| /** |
| * Stats instances which delegates to both TimeSeries based counter |
| * and Metrics based meters so as to allow both systems to collect |
| * stats |
| */ |
| final class CompositeStats implements CounterStats, MeterStats, TimerStats, HistogramStats { |
| private final AtomicLong delegate; |
| private final Counter counter; |
| private final Timer timer; |
| private final Meter meter; |
| private final Histogram histogram; |
| private final Counting counting; |
| |
| public CompositeStats(AtomicLong delegate, Counter counter) { |
| this(delegate, counter, null, null, null, counter); |
| } |
| |
| public CompositeStats(AtomicLong delegate, Timer timer) { |
| this(delegate, null, timer, null, null, timer); |
| } |
| |
| public CompositeStats(AtomicLong delegate, Meter meter) { |
| this(delegate, null, null, meter, null, meter); |
| } |
| |
| public CompositeStats(AtomicLong delegate, Histogram histogram) { |
| this(delegate, null, null, null, histogram, histogram); |
| } |
| |
| private CompositeStats(AtomicLong delegate, Counter counter, |
| Timer timer, Meter meter, Histogram histogram, Counting counting) { |
| this.delegate = delegate; |
| this.counter = counter; |
| this.timer = timer; |
| this.meter = meter; |
| this.histogram = histogram; |
| this.counting = counting; |
| } |
| |
| @Override |
| public long getCount() { |
| return counting.getCount(); |
| } |
| |
| @Override |
| public void inc() { |
| delegate.getAndIncrement(); |
| counter.inc(); |
| } |
| |
| @Override |
| public void dec() { |
| delegate.getAndDecrement(); |
| counter.dec(); |
| } |
| |
| @Override |
| public void inc(long n) { |
| delegate.getAndAdd(n); |
| counter.inc(n); |
| } |
| |
| @Override |
| public void dec(long n) { |
| delegate.getAndAdd(-n); |
| counter.dec(n); |
| } |
| |
| @Override |
| public void mark() { |
| delegate.getAndIncrement(); |
| meter.mark(); |
| } |
| |
| @Override |
| public void mark(long n) { |
| delegate.getAndAdd(n); |
| meter.mark(n); |
| } |
| |
| @Override |
| public void update(long duration, TimeUnit unit) { |
| delegate.getAndAdd(unit.toMillis(duration)); |
| timer.update(duration, unit); |
| } |
| |
| @Override |
| public void update(long value) { |
| delegate.getAndAdd(value); |
| histogram.update(value); |
| } |
| |
| @Override |
| public Context time() { |
| return new StatsContext(timer.time(), delegate); |
| } |
| |
| boolean isMeter() { |
| return meter != null; |
| } |
| |
| boolean isTimer() { |
| return timer != null; |
| } |
| |
| boolean isCounter() { |
| return counter != null; |
| } |
| |
| boolean isHistogram(){ |
| return histogram != null; |
| } |
| |
| Counter getCounter() { |
| return counter; |
| } |
| |
| Timer getTimer() { |
| return timer; |
| } |
| |
| Meter getMeter() { |
| return meter; |
| } |
| |
| Histogram getHistogram(){ |
| return histogram; |
| } |
| |
| |
| private static final class StatsContext implements Context { |
| private final Timer.Context context ; |
| private final AtomicLong delegate; |
| |
| private StatsContext(Timer.Context context, AtomicLong delegate) { |
| this.context = context; |
| this.delegate = delegate; |
| } |
| |
| public long stop() { |
| long nanos = context.stop(); |
| delegate.getAndAdd(TimeUnit.NANOSECONDS.toMillis(nanos)); |
| return nanos; |
| } |
| |
| /** Equivalent to calling {@link #stop()}. */ |
| @Override |
| public void close() { |
| stop(); |
| } |
| } |
| } |