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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2009-2013 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
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* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
*
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*/
package org.glassfish.external.statistics.impl;
import org.glassfish.external.statistics.TimeStatistic;
import java.util.Map;
import java.lang.reflect.*;
/**
* @author Sreenivas Munnangi
*/
public final class TimeStatisticImpl extends StatisticImpl
implements TimeStatistic, InvocationHandler {
private long count = 0L;
private long maxTime = 0L;
private long minTime = 0L;
private long totTime = 0L;
private final long initCount;
private final long initMaxTime;
private final long initMinTime;
private final long initTotTime;
private final TimeStatistic ts =
(TimeStatistic) Proxy.newProxyInstance(
TimeStatistic.class.getClassLoader(),
new Class[] { TimeStatistic.class },
this);
public synchronized final String toString() {
return super.toString() + NEWLINE +
"Count: " + getCount() + NEWLINE +
"MinTime: " + getMinTime() + NEWLINE +
"MaxTime: " + getMaxTime() + NEWLINE +
"TotalTime: " + getTotalTime();
}
public TimeStatisticImpl(long counter, long maximumTime, long minimumTime,
long totalTime, String name, String unit,
String desc, long startTime, long sampleTime) {
super(name, unit, desc, startTime, sampleTime);
count = counter;
initCount = counter;
maxTime = maximumTime;
initMaxTime = maximumTime;
minTime = minimumTime;
initMinTime = minimumTime;
totTime = totalTime;
initTotTime = totalTime;
}
public synchronized TimeStatistic getStatistic() {
return ts;
}
public synchronized Map getStaticAsMap() {
Map m = super.getStaticAsMap();
m.put("count", getCount());
m.put("maxtime", getMaxTime());
m.put("mintime", getMinTime());
m.put("totaltime", getTotalTime());
return m;
}
public synchronized void incrementCount(long current) {
if (count == 0) {
totTime = current;
maxTime = current;
minTime = current;
} else {
totTime = totTime + current;
maxTime = (current >= maxTime ? current : maxTime);
minTime = (current >= minTime ? minTime : current);
}
count++;
sampleTime = System.currentTimeMillis();
}
/**
* Returns the number of times an operation was invoked
*/
public synchronized long getCount() {
return count;
}
/**
* Returns the maximum amount of time that it took for one invocation of an
* operation, since measurement started.
*/
public synchronized long getMaxTime() {
return maxTime;
}
/**
* Returns the minimum amount of time that it took for one invocation of an
* operation, since measurement started.
*/
public synchronized long getMinTime() {
return minTime;
}
/**
* Returns the amount of time that it took for all invocations,
* since measurement started.
*/
public synchronized long getTotalTime() {
return totTime;
}
@Override
public synchronized void reset() {
super.reset();
count = initCount;
maxTime = initMaxTime;
minTime = initMinTime;
totTime = initTotTime;
sampleTime = -1L;
}
// todo: equals implementation
public Object invoke(Object proxy, Method m, Object[] args) throws Throwable {
checkMethod(m);
Object result;
try {
result = m.invoke(this, args);
} catch (InvocationTargetException e) {
throw e.getTargetException();
} catch (Exception e) {
throw new RuntimeException("unexpected invocation exception: " +
e.getMessage());
}
return result;
}
}
