/**
* Copyright (C) 2009 eXo Platform SAS.
*
* This 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 software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.exoplatform.portal.application;
import org.gatein.common.concurrent.AtomicPositiveLong;
import org.gatein.common.concurrent.LongSampler;
public class PortalStatistic {
/** . */
private static final int ONE_SECOND = 20000;
private final String appId;
private final LongSampler times = new LongSampler(1000);
private final LongSampler throughput = new LongSampler(1000);
private final AtomicPositiveLong maxTime = new AtomicPositiveLong();
private final AtomicPositiveLong minTime = new AtomicPositiveLong();
// count varible, store number of request
private volatile long countRequest = 0;
public PortalStatistic(String appId) {
this.appId = appId;
}
/**
* Log the time.
*
* @param timeMillis the time to log in milliseconds
*/
public void logTime(long timeMillis) {
//
times.add(timeMillis);
// add current time to throughput array
throughput.add(System.currentTimeMillis());
// if time > max time then put a new max time value
maxTime.setIfGreater(timeMillis);
// generate first value for min time
minTime.setIfLower(timeMillis);
//
countRequest++;
}
public double getMaxTime() {
long maxTime = this.maxTime.get();
if (maxTime == -1) {
return -1;
}
return maxTime;
}
public double getMinTime() {
long minTime = this.minTime.get();
if (minTime == -1) {
return -1;
}
return minTime;
}
public double getAverageTime() {
return times.average();
}
/**
* Compute the throughput.
*
* @return the throughput
*/
public double getThroughput() {
return throughput.countAboveThreshold(System.currentTimeMillis() - ONE_SECOND);
}
public long viewCount() {
return countRequest;
}
}