/**************************************************************************************
* Copyright (C) 2008 EsperTech, Inc. All rights reserved. *
* http://esper.codehaus.org *
* http://www.espertech.com *
* ---------------------------------------------------------------------------------- *
* The software in this package is published under the terms of the GPL license *
* a copy of which has been included with this distribution in the license.txt file. *
**************************************************************************************/
package com.espertech.esper.util;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
//import java.lang.management.ManagementFactory;
//import java.lang.management.ThreadMXBean;
/**
* Utility for CPU and wall time metrics.
*/
public class MetricUtil
{
private static final Log log = LogFactory.getLog(MetricUtil.class);
// private static ThreadMXBean threadMXBean;
// private static boolean isCPUEnabled;
/**
* Initialize metrics mgmt.
*/
public static void initialize()
{
/*
threadMXBean = ManagementFactory.getThreadMXBean();
isCPUEnabled = threadMXBean.isCurrentThreadCpuTimeSupported();
if (!isCPUEnabled)
{
log.warn("CPU metrics reporting is not enabled by Java VM");
}
*/
log.warn("CPU metrics reporting is not implemented");
}
/**
* Returns CPU time for the current thread.
* @return cpu current thread
*/
public static long getCPUCurrentThread()
{
/*
if (isCPUEnabled)
{
return threadMXBean.getCurrentThreadCpuTime();
}
*/
log.warn("CPU metrics reporting is not implemented");
return 0;
}
/**
* Returns wall time using System#nanoTime.
* @return wall time
*/
public static long getWall()
{
return System.nanoTime();
}
}