[jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-4089) Allow for custom LogProviders

[Francisco Jose Peredo Noguez (JIRA)]

    [ https://jira.jboss.org/jira/browse/JBSEAM-4089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12462060#action_12462060 ] 

Francisco Jose Peredo Noguez commented on JBSEAM-4089:
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Well, if you use SLF4J, you can use the log4j-over-slf4j-xxx.jar to redirect Log4JProvider to Slf4j (that is what I do) after that, slf4j can re-redirect you logging anywhere...

But, I agree with you that the code in  org.jboss.seam.log.Logging  could be simplified it called Slf4j directly (after all, Slf4j can also redirect to  JDK logging using the slf4j-jdk14-xxx.jar

> Allow for custom LogProviders
> -----------------------------
>
>                 Key: JBSEAM-4089
>                 URL: https://jira.jboss.org/jira/browse/JBSEAM-4089
>             Project: Seam
>          Issue Type: Feature Request
>          Components: Core
>    Affects Versions: 2.1.1.GA
>            Reporter: Bob Thule
>
> Please see forum:  http://www.seamframework.org/Community/CustomLogProvider
> org.jboss.seam.log.Logging finds a log provider by:
>    static LogProvider getLogProvider(String category, boolean wrapped)
>    {
>       return isLog4JAvailable ? 
>                new Log4JProvider(category, wrapped) : 
>                new JDKProvider(category, wrapped);
>    }
> This does not allow users to supply a custom log provider.  There are two reasons I can see for wanting to use a custom log provider:
> 1.  To allow an alternative logging api, such as SLF4J.  (for SLF$j, the current work-around for this is to use an log4j-to-slf4j bridge jar)
> 2.  To allow custom work to be done, such as when error is called, to looking for an object in the contexts and to add a message to that object.
> i.e.  
> public void error(String message, Exception e) {
>    ((ErrorLog)Contexts.getSessionContext().get("errorLog")).add(message, e);
>    if (level>=ERROR)
>        logImp.error(message, e);
> }

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