package org.red5.server.api.statistics.support;
/*
* RED5 Open Source Flash Server - http://code.google.com/p/red5/
*
* Copyright (c) 2006-2010 by respective authors (see below). All rights reserved.
*
* This library is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free Software
* Foundation; either version 2.1 of the License, or (at your option) any later
* version.
*
* This library 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along
* with this library; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
import java.util.concurrent.atomic.AtomicInteger;
/**
* Counts numbers used by the statistics. Keeps track of current,
* maximum and total numbers.
*
* @author The Red5 Project (red5@osflash.org)
* @author Joachim Bauch (jojo@struktur.de)
*/
public class StatisticsCounter {
/** Current number. */
private AtomicInteger current = new AtomicInteger();
/** Total number. */
private AtomicInteger total = new AtomicInteger();
/** Maximum number. */
private AtomicInteger max = new AtomicInteger();
/**
* Increment statistics by one.
*/
public void increment() {
total.incrementAndGet();
max.compareAndSet(current.intValue(), current.incrementAndGet());
}
/**
* Decrement statistics by one.
*/
public void decrement() {
current.decrementAndGet();
}
/**
* Get current number.
*
* @return current number
*/
public int getCurrent() {
return current.intValue();
}
/**
* Get total number.
*
* @return total
*/
public int getTotal() {
return total.intValue();
}
/**
* Get maximum number.
*
* @return max
*/
public int getMax() {
return max.intValue();
}
}