Time Duration tracking

Question

Hi ALL,
I need to get total time duration of my user in my application. I got maximum time duration he has spent for a month from the below sample query .
SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss");
Date parseFinalTime=null;
String totalDuration = "";
long totDuration=0;
String siteDuration="";
String masterquery = new StringBuffer("SELECT max(TSIE52_SESSION_DURATION)  from STSIE52_USER_SESSION ").toString();
ResultSet subResultSet = getResultSet(connection, masterquery);
while (subResultSet.next()) {
parseFinalTime = sdf.parse(subResultSet.getString(1));
totDuration =parseFinalTime.getTime();
totalDuration = sdf.format(new Date(totDuration));
System.out.println("siteDuration---------------->::" +totalDuration);
}The output I got as below:
siteDuration---------------->::00:00:24
siteDuration---------------->::00:00:05
siteDuration---------------->::00:00:09
siteDuration---------------->::00:00:14
siteDuration---------------->::00:51:33
siteDuration---------------->::00:16:42
siteDuration---------------->::00:00:05
siteDuration---------------->::00:00:25
siteDuration---------------->::00:00:05
siteDuration---------------->::00:00:10
siteDuration---------------->::00:00:09
siteDuration---------------->::00:03:02
siteDuration---------------->::00:00:18
siteDuration---------------->::00:00:11
I need to total all the times mentioned above and get the result as total duration time. How it is possible in java? Or is any other way that the desired output can be got from the sql query itself. Appreciate your help.

Answer 1

JAMon does exactly this and more. Whatever label you pass to the start method later shows up in a report with the times aggregated (hits,total time,avg time, min time, max time and more). jamon is easy to use, open source and fast. For servlets you can use the jamon servlet filter and monitor these stats for each servlet without any code changes on your end (just add to your web.xml and make jamon.jar available).
jamon 2 was just released this weekend and it has some new powerful capabilities.
Having said that I would think your particular case would be better solved by the database with a group by clause.
http://www.jamonapi.com
Something like the following could work. Note I am also timing the code with jamon.
import com.jamonapi.*;
Monitor mon=MonitorFactory.start("myCode");
long totDuration=0;
String masterquery = new StringBuffer("SELECT max(TSIE52_SESSION_DURATION)  from STSIE52_USER_SESSION ").toString();
ResultSet subResultSet = getResultSet(connection, masterquery);
while (subResultSet.next()) {
parseFinalTime = sdf.parse(subResultSet.getString(1));
MonitorFactory.add("totalDuration", "duration",totDuration);
mon.stop();