/*
* Copyright (c) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 David Berkman
*
* This file is part of the SmallMind Code Project.
*
* The SmallMind Code Project is free software, you can redistribute
* it and/or modify it under either, at your discretion...
*
* 1) The terms of GNU Affero General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at
* your option) any later version.
*
* ...or...
*
* 2) The terms of the Apache License, Version 2.0.
*
* The SmallMind Code Project is distributed in the hope that it will
* be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License or Apache License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* and the Apache License along with the SmallMind Code Project. If not, see
* <http://www.gnu.org/licenses/> or <http://www.apache.org/licenses/LICENSE-2.0>.
*
* Additional permission under the GNU Affero GPL version 3 section 7
* ------------------------------------------------------------------
* If you modify this Program, or any covered work, by linking or
* combining it with other code, such other code is not for that reason
* alone subject to any of the requirements of the GNU Affero GPL
* version 3.
*/
package org.smallmind.instrument;
import java.util.concurrent.atomic.AtomicLong;
import org.smallmind.instrument.context.MetricFact;
import org.smallmind.instrument.context.MetricItem;
import org.smallmind.instrument.context.MetricSnapshot;
public class TallyImpl extends MetricImpl<Tally> implements Tally {
private final AtomicLong count;
public TallyImpl () {
this(0);
}
public TallyImpl (int initialCount) {
this.count = new AtomicLong(initialCount);
}
@Override
public Class<Tally> getMetricClass () {
return Tally.class;
}
@Override
public void clear () {
MetricSnapshot metricSnapshot;
count.set(0);
if ((metricSnapshot = getMetricSnapshot()) != null) {
metricSnapshot.addItem(new MetricItem<>("count", 0L));
}
}
@Override
public void inc () {
MetricSnapshot metricSnapshot;
long current;
current = count.incrementAndGet();
if ((metricSnapshot = getMetricSnapshot()) != null) {
metricSnapshot.addItem(new MetricItem<>("count", current));
}
}
@Override
public void inc (long n) {
MetricSnapshot metricSnapshot;
long current;
current = count.addAndGet(n);
if ((metricSnapshot = getMetricSnapshot()) != null) {
metricSnapshot.addItem(new MetricItem<>("count", current));
}
}
@Override
public void dec () {
MetricSnapshot metricSnapshot;
long current;
current = count.decrementAndGet();
if ((metricSnapshot = getMetricSnapshot()) != null) {
if (metricSnapshot.willTrace(MetricFact.COUNT)) {
metricSnapshot.addItem(new MetricItem<>("count", current));
}
}
}
@Override
public void dec (long n) {
MetricSnapshot metricSnapshot;
long current;
current = count.addAndGet(0 - n);
if ((metricSnapshot = getMetricSnapshot()) != null) {
if (metricSnapshot.willTrace(MetricFact.COUNT)) {
metricSnapshot.addItem(new MetricItem<>("count", current));
}
}
}
@Override
public long getCount () {
return count.get();
}
}