Thanks for your response.

 

It is not as much converting it into a form recognized by the Excel importer – I just use tabulator characters for that – but to get the data suited directly for further analysis by Excel.

 

For instance I do not believe that the 2013-04-02 10:34:32,479 time stamp is immediately useful (and I also need timezone support), so I was looking at simply generating the number (fractional days since the Excel epoch) which Excel can then be told is a date and handle accordingly.

 

Do you have any experiences like that to share?

 

Thanks

 

/Thorbjørn

 

From: logback-user-bounces@qos.ch [mailto:logback-user-bounces@qos.ch] On Behalf Of Donald McLean
Sent: 2. april 2013 16:37
To: logback users list
Subject: Re: [logback-user] Logs targeting Excel Pivot Tables

 

Wouldn't you want to just use a different pattern, one that has commas  between the fields?

Something like this:

%date,%level,%thread,%logger{10},%file,%line],%msg%n

I tried it and it produced content that looked like this:

2013-04-02 10:34:32,479,TRACE,Scanner-2,e.s.e.m.EFLContext,EFLContext.scala,220],services: Set(edu.stsci.efl.logging.LogbackService@2e751271)
2013-04-02 10:34:32,483,TRACE,Scanner-2,e.s.e.m.EFLContext,EFLContext.scala,213],[main] (Tue Apr 02 10:34:32 EDT 2013): Set(edu.stsci.efl.logging.LogbackService@2e751271)
2013-04-02 10:34:32,483,TRACE,Scanner-2,e.s.e.m.EFLContext,EFLContext.scala,213],looking for: edu.stsci.efl.services.LoggerFactoryService
2013-04-02 10:34:32,483,TRACE,Scanner-2,e.s.e.m.EFLContext,EFLContext.scala,213],Some(edu.stsci.efl.logging.LogbackService@2e751271)
2013-04-02 10:34:32,484,DEBUG,Scanner-2,e.s.e.d.DBModule,DBModule.scala,35],Starting DBModule
2013-04-02 10:34:32,485,TRACE,Scanner-2,e.s.e.m.EFLContext,EFLContext.scala,213],[main] (Tue Apr 02 10:34:32 EDT 2013): Set(edu.stsci.efl.logging.LogbackService@2e751271)
2013-04-02 10:34:32,485,TRACE,Scanner-2,e.s.e.m.EFLContext,EFLContext.scala,213],looking for: edu.stsci.efl.services.PropertyService
2013-04-02 10:34:32,486,TRACE,Scanner-2,e.s.e.m.EFLContext,EFLContext.scala,213],None

 

On Tue, Apr 2, 2013 at 3:59 AM, Thorbjørn Ravn Andersen <thunderaxiom@hotmail.com> wrote:

Hi.

 

I want to create a log file which is not directly intended to be readable by humans but to use with Pivot Tables in Excel to generate reports (e.g. over http requests and their duration spread over the day for several months, that kind of thing).

 

I was wondering what the best approach for doing that would be.

 

My guess would be a tab-separated file (to allow Excel to read it in as a CSV-file), with the first field being the timestamp in an Excel compatible form (e.g. a number formatted as a timestamp), and the remaining fields the individual items I need to analyze.  (This is what I generate right now using ad-hoc Perl)

 

(We can calculate on that 99.99% of the time that the application will exit with System.exit(0) in my main method, so it is not super important with having a solution robust against e.g. OutOfMemoryError, but I would like one that does not build a large data structure in memory like using JExcel to generate a spread sheet on the fly).

 

Anyone who has experimented with this and have experiences to share?

 

Thanks

 

/Thorbjørn

 

 

 


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