[logback-user] How to start my logback before anything in an application

[Robert Elliot]

Logback will initialise the first time you retrieve a logger from LoggerFactory. 

If you want it to initialise before anything else you need to take responsibility for retrieving a Logger before anything else runs. 

How you do this will depend on what kind of application you are creating - it will not, and cannot, be the same between a web app and a cli. 

If you tell us precisely what kind of application you are trying to write we can give precise advice. 

Bear in mind that a static call to LoggerFactory.getLogger() will occur the moment a class is loaded. 

On 24 Oct 2011, at 09:16, BAKHTI Mohammed <onlymed at hotmail.com> wrote:

> Yes but that will not help me a lot : 
> 
> My original question was about logback how it can always starts first whatever is the context (webapp, command line...) means if i put a logback.xml in my classpath in a webapp i dont need to start a servlet or anything, logback will init alone. 
> 
> So if i can understund how it can starts i can do the same .
> 
> Thanks David
> 
> From: nabble at diroussel.xsmail.com
> Date: Sat, 22 Oct 2011 23:01:05 +0100
> To: logback-user at qos.ch
> Subject: Re: [logback-user] How to start my logback before anything in an	application
> 
> Ok ...
> 
> static void main() {
>   readCommandLineArgs();
>   initLogging();
>   initSpringContext();
> }
> 
> For a better example of how to call spring from you main method see the spring documentation. 
> 
> David
> 
> On 22 Oct 2011, at 22:34, BAKHTI Mohammed <onlymed at hotmail.com> wrote:
> 
> thanks David, 
> 
> Can you give me a sample code you use, or more details ?
> 
> Thanks
> 
> From: nabble at diroussel.xsmail.com
> Date: Sat, 22 Oct 2011 22:14:01 +0100
> To: logback-user at qos.ch
> Subject: Re: [logback-user] How to start my logback before anything in an	application
> 
> How are they launched?  I use spring and hibernate etc, but my main method is in a class with no imports from spring or logback. I do my own setup, the initialise logback (just by setting system properties in my case) the I call into spring. 
> 
> Can you do the same?
> 
> David
> 
> On 22 Oct 2011, at 19:08, BAKHTI Mohammed <onlymed at hotmail.com> wrote:
> 
> That what i have done, but all the framworks like spring, axis2, hibernate are launched before so i lost their logs 
> 
> From: nabble at diroussel.xsmail.com
> Date: Sat, 22 Oct 2011 13:55:47 +0100
> To: logback-user at qos.ch
> Subject: Re: [logback-user] How to start my logback before anything in an	application
> 
> You have to expose a method from your api and get the application to all it before it does any logging. 
> 
> David
> 
> On 21 Oct 2011, at 22:03, BAKHTI Mohammed <onlymed at hotmail.com> wrote:
> 
> 
> Hello David, sorry about it, 
> 
> My question is in general : as i do a code based configuration using Joran configurator : if i have some frameworks in my applications (a webapp or a jar ....) . those frameworks will init before my api, so they will send some logs to stdout or whatever. 
> 
> My goal : is how can i be sure that my api (which use logback ) is always initialized firt before all the other. 
> 
> is that possible ? 
> 
> If i use a logback.xml i see that logback is always the firt launched. so how can i do the same 
> 
> Thanks 
> CC: logback-user at qos.ch
> From: nabble at diroussel.xsmail.com
> Date: Fri, 21 Oct 2011 21:15:45 +0100
> To: logback-user at qos.ch
> Subject: Re: [logback-user] How to start my logback before anything in an	application
> 
> And if it's a command line tool, just initialise log back manually before you create any loggers. 
> 
> (Mohammed: please create a new email for a new thread. Don't just reply to an existing thread and change the subject, most email software treats it as the same thread.)
> 
> David
> 
> On 21 Oct 2011, at 17:57, Chris Pratt <thechrispratt at gmail.com> wrote:
> 
> I assume you're talking about a Web Application.  If so, check out javax.servlet.ServletContextListener, it's your best bet.
>   (*Chris*)
> 
> On Fri, Oct 21, 2011 at 7:47 AM, BAKHTI Mohammed <onlymed at hotmail.com> wrote:
> Hello, 
> 
> I have  actually an API which use logback and add some specific functions. this API initialize logback in code : joranConfigurator(myconfig.file) 
> 
> I dont have any logback.xml in my classpath.
> 
> My question is how can i start this API (and then logback) at application startup before all the other frameworks and APIs (spring, hibernate, axis...) 
> 
> I mean the same way logback init itself with logback.xml at startup
> 
> Thanks
> 
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