[jira] [Issue Comment Edited] (MTOMCAT-110) Support Slf4j bridge logger

["Morten Haraldsen (Issue Comment Edited) (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MTOMCAT-110?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13173968#comment-13173968 ] 

Morten Haraldsen edited comment on MTOMCAT-110 at 12/21/11 9:27 AM:
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Hi again, I thought I should simplify your task a bit, and I wrote the following snippet:

{code}
private void installLogger(String loggerName) throws SecurityException, NoSuchMethodException, IllegalArgumentException, IllegalAccessException, InvocationTargetException 
{
    	if ("slf4j".equals(loggerName))
    	{
    		Class<?> clazz;
        	try 
        	{
        		// Check class is available
				clazz = Class.forName("org.slf4j.bridge.SLF4JBridgeHandler", false, getClass().getClassLoader());
				
				// Remove all JUL handlers
				java.util.logging.LogManager.getLogManager().reset();
				
				// Install slf4j bridge handler
				final Method method = clazz.getMethod("install", String.class);
        	    method.invoke(null);
		} 
        	catch (ClassNotFoundException e) 
        	{
				// TODO: Notify that the class was missing
		}
    	}
    	else
    	{
    		// TODO: Notify unsupported logger type
    	}
}
{code}
                
      was (Author: xaer):
    Hi again, I thought I should simplify your task a bit, and I wrote the following snippet:

private void installLogger(String loggerName) throws SecurityException, NoSuchMethodException, IllegalArgumentException, IllegalAccessException, InvocationTargetException 
{
    	if ("slf4j".equals(loggerName))
    	{
    		Class<?> clazz;
        	try 
        	{
        		// Check class is available
				clazz = Class.forName("org.slf4j.bridge.SLF4JBridgeHandler", false, getClass().getClassLoader());
				
				// Remove all JUL handlers
				java.util.logging.LogManager.getLogManager().reset();
				
				// Install slf4j bridge handler
				final Method method = clazz.getMethod("install", String.class);
        	    method.invoke(null);
		} 
        	catch (ClassNotFoundException e) 
        	{
				// TODO: Notify that the class was missing
		}
    	}
    	else
    	{
    		// TODO: Notify unsupported logger type
    	}
}
                  
> Support Slf4j bridge logger
> ---------------------------
>
>                 Key: MTOMCAT-110
>                 URL: https://issues.apache.org/jira/browse/MTOMCAT-110
>             Project: Apache Tomcat Maven Plugin
>          Issue Type: New Feature
>            Reporter: Morten Haraldsen
>   Original Estimate: 2h
>  Remaining Estimate: 2h
>
> As a lot of web-applications use slf4j for logging, it would be nice if you could support this as a Mojo parameter, like <logging>slf4j</logging>
> This should trigger something like:
> java.util.logging.LogManager.getLogManager().reset();
> SLF4JBridgeHandler.install();
> (requires org.slf4j:jul-to-slf4j on the classpath)

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