01: /*
02: * $Id: Average.java 8077 2007-08-27 20:15:25Z aperepel $
03: * --------------------------------------------------------------------------------------
04: * Copyright (c) MuleSource, Inc. All rights reserved. http://www.mulesource.com
05: *
06: * The software in this package is published under the terms of the CPAL v1.0
07: * license, a copy of which has been included with this distribution in the
08: * LICENSE.txt file.
09: */
10:
11: package org.mule.util.counters.impl;
12:
13: import org.mule.util.counters.CounterFactory.Type;
14:
15: public class Average extends AggregateCounter {
16:
17: private double sum = 0;
18: private long times = 0;
19:
20: public Average(String name, AbstractCounter base) {
21: super (name, Type.AVERAGE, base);
22: }
23:
24: public double nextValue() {
25: return (times > 0) ? sum / times : 0;
26: }
27:
28: public void doCompute() {
29: this.sum += getBase().nextValue();
30: this.times++;
31: }
32:
33: }
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